Ten-hour continuation: finishing the Rust + Yew/WebAssembly idle RPG on the PR #23 head

edited src/core/stats.rs: -381 +378 chars; file is now 292 lines

edited src/core/stats.rs: -75 +75 chars; file is now 292 lines

exit=1
error: unexpected argument '2>&1' found

Usage: cargo test [OPTIONS] [TESTNAME] [-- [ARGS]...]

For more information, try '--help'.

exit=101
running 5 tests
test core::stats::tests::damage_stays_positive_against_stacked_defence ... ok
test core::stats::tests::growth_weights_sum_to_points_per_level ... ok
test core::stats::tests::every_class_totals_the_same_at_level_1 ... ok
test core::stats::tests::curves_are_saturating_and_monotonic ... ok
test core::stats::tests::totals_stay_exact_at_every_level ... FAILED

failures:

---- core::stats::tests::totals_stay_exact_at_every_level stdout ----

thread 'core::stats::tests::totals_stay_exact_at_every_level' (1551665) panicked at src/core/stats.rs:262:17:
assertion `left == right` failed
  left: 6
 right: 2
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace


failures:
    core::stats::tests::totals_stay_exact_at_every_level

test result: FAILED. 4 passed; 1 failed; 0 ignored; 0 measured; 39 filtered out; finished in 0.00s


   Compiling emberfall v0.1.0 (/home/zerc/rpgbench/game)
warning: named argument `level` is not used by name
   --> src/core/balance.rs:355:79
    |
355 |         let _ = writeln!(out, "  level {:>2}: ttk {ttk:.4}  hp_left {hp:.4}", level = level);
    |                                        -----                                  ^^^^^ this named argument is referred to by position in formatting string
    |                                        |
    |                                        this formatting argument uses named argument `level` by position
    |
    = note: `#[warn(named_arguments_used_positionally

src/core/stats.rs: 292 lines, showing 240-279
  240|     fn every_class_totals_the_same_at_level_1() {
  241|         for c in Class::all() {
  242|             assert_eq!(c.base().total(), PRIMARY_TOTAL, "{c:?} base total");
  243|         }
  244|     }
  245| 
  246|     #[test]
  247|     fn growth_weights_sum_to_points_per_level() {
  248|         for c in Class::all() {
  249|             assert_eq!(c.growth().total(), POINTS_PER_LEVEL, "{c:?} growth");
  250|         }
  251|     }
  252| 
  253|     #[test]
  254|     fn totals_stay_exact_at_every_level() {
  255|         for c in Class::all() {
  256|             let mut ch = Character::new(c);
  257|             for level in 2..=25 {
  258|                 while ch.xp < Character::xp_to_next(ch.level) {
  259|                     ch.xp += 1000;
  260|                 }
  261|                 ch.award_xp();
  262|                 assert_eq!(ch.level, level);
  263|                 assert_eq!(
  264|                     ch.stats.total(),
  265|                     PRIMARY_TOTAL + POINTS_PER_LEVEL * (level - 1),
  266|                     "{c:?} total at level {level}"
  267|                 );
  268|             }
  269|         }
  270|     }
  271| 
  272|     #[test]
  273|     fn curves_are_saturating_and_monotonic() {
  274|         let mut prev = (0.0, 0.0, 0.0);
  275|         for dex in [4u32, 8, 12, 16, 24, 40, 80] {
  276|             let mut ch = Character::new(Class::Archer);
  277|             ch.stats.de

edited src/core/stats.rs: -550 +644 chars; file is now 293 lines

src/core/stats.rs: 293 lines, showing 126-143
  126|     /// Derived stats for the current level/primaries.
  127|     pub fn derived(&self) -> Derived {
  128|         Derived::from_character(self)
  129|     }
  130| 
  131|     /// Which attack stat this class uses, and the MP cost of one attack (0 when physical).
  132|     /// Returns `(power, mp_cost)`.
  133|     pub fn attack_power(&self, d: &Derived) -> (f32, f32) {
  134|         match self.class {
  135|             Class::Warrior => (d.p_atk, 0.0),
  136|             Class::Archer => (d.p_atk + d.bow_bonus, 0.0),
  137|             Class::Wizard => {
  138|                 let cost = d.spell_cost;
  139|                 if d.mp_pool >= cost {
  140|                     (d.m_atk, cost)
  141|                 } else {
  142|                     (d.p_atk * STAFF_FALLBACK, 0.0)
  143|                 }

exit=0
running 5 tests
test core::stats::tests::curves_are_saturating_and_monotonic ... ok
test core::stats::tests::damage_stays_positive_against_stacked_defence ... ok
test core::stats::tests::growth_weights_sum_to_points_per_level ... ok
test core::stats::tests::totals_stay_exact_at_every_level ... ok
test core::stats::tests::every_class_totals_the_same_at_level_1 ... ok

test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 39 filtered out; finished in 0.00s


warning: named argument `level` is not used by name
   --> src/core/balance.rs:355:79
    |
355 |         let _ = writeln!(out, "  level {:>2}: ttk {ttk:.4}  hp_left {hp:.4}", level = level);
    |                                        -----                                  ^^^^^ this named argument is referred to by position in formatting string
    |                                        |
    |                                        this formatting argument uses named argument `level` by position
    |
    = note: `#[warn(named_arguments_used_positionally)]` on by default
help: use the named argument by name to avoid ambiguity
    |
355 |         let _ = writeln!(out, "  level {level:>2}: ttk {ttk:.4}  hp_left {hp:.4}", level = level);
    |                                         +++++

warning: unused imports: `Deserialize` and `Serialize`
 --> src/core/rng.rs:9:13
  |
9 | use serde::{Deserialize, Serialize};
  |             ^^^^^^^^^^^  ^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(

edited src/core/balance.rs: -85 +75 chars; file is now 412 lines

exit=101
running 11 tests
test core::battle::tests::damage_is_at_least_one_and_decreases_with_defence ... ok
test core::battle::tests::companion_effect_applies_then_expires ... ok
test core::battle::tests::auto_potion_rules_trigger ... ok
test core::battle::tests::evasion_and_crit_are_bounded ... ok
test core::battle::tests::four_locations_each_with_3_mobs_and_a_boss ... ok
test core::battle::tests::every_location_boss_is_bearable_at_reference_levels ... FAILED
test core::battle::tests::respawn_keeps_90_percent_of_gold ... ok
test core::battle::tests::different_seeds_diverge ... FAILED
test core::battle::tests::turn_order_follows_speed ... ok
test core::battle::tests::same_seed_replays_identical_battle_log ... ok
test core::battle::tests::wave1_enemy_dies_to_level1_hero_of_every_class ... ok

failures:

---- core::battle::tests::every_location_boss_is_bearable_at_reference_levels stdout ----

thread 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels' (1555130) panicked at src/core/battle.rs:943:13:
Archer at L10 died to the 1 boss: BattleOutcome { turns: 6, cleared: false, hero_died: true, hp_left: 0.0, gold_earned: 0, log: [TurnStart { turn: 1, actor: "Archer" }, BuffUsed { who: "Archer", stat: "attack", pct: 0.25, turns: 6 }, Attack { attacker: "Archer", target: "Ashen Stag", damage: 73.22279, crit: false }, TurnStart { turn: 2, actor: "Ashen Stag" }, Attack { attacker: "Ashen Stag", target: "Archer", damage: 75.597305, crit: false }, TurnStart { turn

ERROR: only these cargo subcommands are allowed: ['build', 'check', 'clippy', 'fmt', 'metadata', 'run', 'test', 'tree']

src/core/rng.rs: 109 lines, showing 1-50
    1| //! Seeded deterministic randomness. The ONLY source of randomness in the game.
    2| //!
    3| //! Every combat roll, shop restock and event draw goes through [`Rng`], which wraps a
    4| //! `rand_chacha::ChaCha8Rng` seeded from the active save slot (or a fixed seed in tests) so
    5| //! that replays and tests are bit-identical.
    6| 
    7| use rand::RngCore;
    8| use rand::SeedableRng;
    9| use serde::{Deserialize, Serialize};
   10| 
   11| /// Fixed seed used by the balance table and every deterministic test.
   12| pub const BALANCE_SEED: u64 = 0x5B4E_3F12_3456_78AB;
   13| 
   14| /// Deterministic PRNG handle passed explicitly through core code.
   15| /// The stream is intentionally NOT serialised: saves persist the `seed` and rebuild the
   16| /// generator, so a loaded game replays deterministically from the same seed.
   17| #[derive(Debug, Clone)]
   18| pub struct Rng {
   19|     inner: rand_chacha::ChaCha8Rng,
   20| }
   21| 
   22| impl Default for Rng {
   23|     fn default() -> Self {
   24|         Self::new(BALANCE_SEED)
   25|     }
   26| }
   27| 
   28| impl Rng {
   29|     /// Seed from any u64 (save slots use their slot index mixed with the creation time).
   30|     pub fn new(seed: u64) -> Self {
   31|         Self {
   32|             inner: rand_chacha::ChaCha8Rng::seed_from_u64(seed),
   33|         }
   34|     }
   35| 
   36|     /// Raw u32 draw.
   37|     #[inline]
   38|   

src/core/rng.rs: 109 lines, showing 50-108
   50|     pub fn next_f32(&mut self) -> f32 {
   51|         self.next_u32() as f32 / (u32::MAX as f32)
   52|     }
   53| 
   54|     /// Uniform f32 in [lo, hi].
   55|     #[inline]
   56|     pub fn range_f32(&mut self, lo: f32, hi: f32) -> f32 {
   57|         lo + (hi - lo) * self.next_f32()
   58|     }
   59| 
   60|     /// Uniform usize in [lo, hi) — used for affix picks and enemy selection.
   61|     #[inline]
   62|     pub fn range_usize(&mut self, lo: usize, hi: usize) -> usize {
   63|         if hi <= lo {
   64|             return lo;
   65|         }
   66|         let span = (hi - lo) as u32;
   67|         lo + (self.next_u32() % span) as usize
   68|     }
   69| 
   70|     /// Uniform i64 in [lo, hi] inclusive — used for gold rolls.
   71|     #[inline]
   72|     pub fn range_i64(&mut self, lo: i64, hi: i64) -> i64 {
   73|         if hi <= lo {
   74|             return lo;
   75|         }
   76|         let span = (hi - lo) as u64 + 1;
   77|         lo + (self.next_u64() % span) as i64
   78|     }
   79| 
   80|     /// Bernoulli draw: true with probability `p` (clamped to [0, 1]).
   81|     #[inline]
   82|     pub fn chance(&mut self, p: f32) -> bool {
   83|         self.next_f32() < p.clamp(0.0, 1.0)
   84|     }
   85| }
   86| 
   87| #[cfg(test)]
   88| mod tests {
   89|     use super::*;
   90| 
   91|     #[test]
   92|     fn same_seed_replays_same_stream() {
   93|         let mut a = Rng:

docs/mechanics.md: 192 lines, showing 1-120
    1| # EMBERFALL — mechanic math (phase 1, authoritative)
    2| 
    3| All numbers below are implemented in exactly two places: `src/core/stats.rs` (stat formulas,
    4| level-ups, class tables) and `src/core/balance.rs` (enemy scaling, boss multipliers, shop power
    5| growth + pricing, the balance measure). `src/core/rng.rs` is the only randomness source. Nothing
    6| in `core/` may touch web/yew.
    7| 
    8| Conventions: `f32` for stats and damage, `u32` for gold/levels/turns. All growth terms are written
    9| as `base + perLevel * (level - 1)` so a level-1 character uses exactly the base value.
   10| 
   11| ## 1. Primary stats
   12| 
   13| Six primaries: `STR, WILL, CON, DEX, INT, CHA`.
   14| 
   15| * Every class **starts at level 1 with a total of 60** primary points (`PRIMARY_TOTAL = 60`).
   16| * Every level-up grants **`POINTS_PER_LEVEL = 3`** points, distributed by the class *growth
   17|   weights* (integers summing to 3, so the totals stay exact and integral at every level).
   18| * `CHA` is a primary stat like any other: it gates companion checks, event outcomes and feeds the
   19|   shop discount (§7). It never enters damage maths.
   20| 
   21| ### Class base tables (level 1, total = 60) and growth weights (sum = 3)
   22| 
   23| | Class   | STR | WILL | CON | DEX | INT | CHA | Σ  | growth weights (STR/WILL/CON/DEX/INT/CHA) |
   24| |---------|----:|-----:|----:|----:|----:|----:|---:|--------

docs/mechanics.md: 192 lines, showing 120-191
  120| 
  121| **Potions** (fixed prices, no CHA discount on potions so they stay a gold-sink decision):
  122| 
  123| | potion          | price | effect |
  124| |-----------------|------:|--------|
  125| | HP potion       |    30 | restore 45% of `max_hp` |
  126| | MP potion       |    36 | restore 50% of `max_mp` |
  127| | buff potion     |    60 | `+25%` to one derived stat (atk/def/evad/speed) for `BUFF_TURNS = 6` turns |
  128| | **Stat potion (common)** | 240 | `+1` to one chosen primary, **common stock (~55% of visits carry one)** |
  129| | **Stat potion (rare)**   |  25 | `+1` to one chosen primary, **rare stock (~6% of visits carry one)** |
  130| 
  131| The two stat-potion kinds are the spec's "cheap-but-rare / expensive-but-common" pair: the
  132| expensive one is easy to find and taxes the gold economy, the cheap one is a lottery.
  133| Auto-usage rules (combat AI, `battle.rs`): `hp_pct < 0.35` → HP potion; `mp < spell_cost` → MP
  134| potion; first turn of a boss fight → buff potion.
  135| 
  136| ## 7. Events and companions
  137| 
  138| Travel events roll once per `EVENT_EVERY = 5` turns (and on town visits) from `core::rng`:
  139| 
  140| | event              | probability | outcome |
  141| |--------------------|------------:|---------|
  142| | treasure           |      0.30   | `+ (8 + 6*level) * (1 + 0.5*CHA/15)` gold — CHA-biased |
  143| | ambush             |      0.25   | immediate extra enemy 

edited src/core/battle.rs: -725 +868 chars; file is now 1037 lines

exit=0
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
warning: unused imports: `Deserialize` and `Serialize`
 --> src/core/rng.rs:9:13
  |
9 | use serde::{Deserialize, Serialize};
  |             ^^^^^^^^^^^  ^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default

warning: `emberfall` (bin "emberfall") generated 1 warning (run `cargo fix --bin "emberfall" -p emberfall` to apply 1 suggestion)
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.86s

rs files: 9
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 20/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::events_roll_with_documented_probabilities', 'core::save::tests::empty_slot_is_not_a_run', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::save::tests::new_game_gives_60_stat_points', 'core::save::tests::new_game_is_seeded_deterministically', 'core::shop::tests::buying_pays_the_discounted_price', 'core::save::tests::slot_keys_are_distinct_and_index_pure', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::generation_is_deterministic', 'core::shop::tests::stat_potion_kinds_match_documented_probabilities', 'core::save::tests::round_trip_is_lossless_for_all_three_slots', 'core::save::tests::version_mismatch_is_reported', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::cannot_buy_without_gold', 'c

exit=0
warning: unused imports: `Deserialize` and `Serialize`
 --> src/core/rng.rs:9:13
  |
9 | use serde::{Deserialize, Serialize};
  |             ^^^^^^^^^^^  ^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default

warning: `emberfall` (bin "emberfall") generated 1 warning (run `cargo fix --bin "emberfall" -p emberfall` to apply 1 suggestion)
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s

rs files: 9
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 20/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::save::tests::empty_slot_is_not_a_run', 'core::save::tests::new_game_gives_60_stat_points', 'core::save::tests::round_trip_is_lossless_for_all_three_slots', 'core::save::tests::slot_keys_are_distinct_and_index_pure', 'core::save::tests::version_mismatch_is_reported', 'core::shop::tests::buying_pays_the_discounted_price', 'core::save::tests::new_game_is_seeded_deterministically', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::generation_is_deterministic', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::stat_potion_kinds_match_documented_probabilities', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'c

exit=101
warning: unused imports: `Deserialize` and `Serialize`
 --> src/core/rng.rs:9:13
  |
9 | use serde::{Deserialize, Serialize};
  |             ^^^^^^^^^^^  ^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default

warning: `emberfall` (bin "emberfall" test) generated 1 warning (run `cargo fix --bin "emberfall" -p emberfall --tests` to apply 1 suggestion)
    Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
     Running unittests src/main.rs (/home/zerc/rpgbench/target/debug/deps/emberfall-97c9a580c445fc95)
error: Unrecognized option: '5'
error: test failed, to rerun pass `--bin emberfall`

rs files: 9
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 20/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::save::tests::empty_slot_is_not_a_run', 'core::save::tests::new_game_is_seeded_deterministically', 'core::save::tests::round_trip_is_lossless_for_all_three_slots', 'core::save::tests::slot_keys_are_distinct_and_index_pure', 'core::save::tests::new_game_gives_60_stat_points', 'core::save::tests::version_mismatch_is_reported', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::stat_potion_kinds_match_documented_probabilities', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::shop::tests::generation_is_deterministic', 'c

rs files: 9
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 20/44 pass; failing: ['core::save::tests::empty_slot_is_not_a_run', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::battle::tests::different_seeds_diverge', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::save::tests::round_trip_is_lossless_for_all_three_slots', 'core::save::tests::new_game_is_seeded_deterministically', 'core::save::tests::slot_keys_are_distinct_and_index_pure', 'core::save::tests::new_game_gives_60_stat_points', 'core::save::tests::version_mismatch_is_reported', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::generation_is_deterministic', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::stat_potion_kinds_match_documented_probabilities', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'c

src/core/rng.rs: 109 lines, showing 1-109
    1| //! Seeded deterministic randomness. The ONLY source of randomness in the game.
    2| //!
    3| //! Every combat roll, shop restock and event draw goes through [`Rng`], which wraps a
    4| //! `rand_chacha::ChaCha8Rng` seeded from the active save slot (or a fixed seed in tests) so
    5| //! that replays and tests are bit-identical.
    6| 
    7| use rand::RngCore;
    8| use rand::SeedableRng;
    9| use serde::{Deserialize, Serialize};
   10| 
   11| /// Fixed seed used by the balance table and every deterministic test.
   12| pub const BALANCE_SEED: u64 = 0x5B4E_3F12_3456_78AB;
   13| 
   14| /// Deterministic PRNG handle passed explicitly through core code.
   15| /// The stream is intentionally NOT serialised: saves persist the `seed` and rebuild the
   16| /// generator, so a loaded game replays deterministically from the same seed.
   17| #[derive(Debug, Clone)]
   18| pub struct Rng {
   19|     inner: rand_chacha::ChaCha8Rng,
   20| }
   21| 
   22| impl Default for Rng {
   23|     fn default() -> Self {
   24|         Self::new(BALANCE_SEED)
   25|     }
   26| }
   27| 
   28| impl Rng {
   29|     /// Seed from any u64 (save slots use their slot index mixed with the creation time).
   30|     pub fn new(seed: u64) -> Self {
   31|         Self {
   32|             inner: rand_chacha::ChaCha8Rng::seed_from_u64(seed),
   33|         }
   34|     }
   35| 
   36|     /// Raw u32 draw.
   37|     #[inline]
   38|  

src/core/stats.rs: 293 lines, showing 1-293
    1| //! Primary stats, class tables, derived-stat formulas and level-ups.
    2| //! This is the single home of the stat math (see docs/mechanics.md §1-§4).
    3| 
    4| use serde::{Deserialize, Serialize};
    5| 
    6| /// Total primary stat points every class owns at level 1 (per-class budget; 60 each).
    7| pub const PRIMARY_TOTAL: u32 = 60;
    8| /// Primary points granted per level-up, distributed by class growth weights.
    9| pub const POINTS_PER_LEVEL: u32 = 3;
   10| 
   11| /// Caps / coefficients for the derived formulas (docs/mechanics.md §2).
   12| pub const EVAD_CAP: f32 = 0.35;
   13| pub const CRIT_CAP: f32 = 0.45;
   14| pub const CRIT_BASE: f32 = 0.02;
   15| pub const STAFF_FALLBACK: f32 = 0.45;
   16| 
   17| /// The six primary stats.
   18| #[derive(Debug, Clone, Copy, PartialEq, Eq, Default, Serialize, Deserialize)]
   19| pub struct Stats {
   20|     pub str: u32,
   21|     pub will: u32,
   22|     pub con: u32,
   23|     pub dex: u32,
   24|     pub int: u32,
   25|     pub cha: u32,
   26| }
   27| 
   28| impl Stats {
   29|     pub fn total(&self) -> u32 {
   30|         self.str + self.will + self.con + self.dex + self.int + self.cha
   31|     }
   32| }
   33| 
   34| /// Playable classes. Kept in one `enum` so match-exhaustiveness catches new classes.
   35| #[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
   36| pub enum Class {
   37|     Warrior,
   38|     Arche

src/core/balance.rs: 412 lines, showing 1-400
    1| //! Class balance model + the balance table (docs/mechanics.md §5, §9).
    2| //!
    3| //! The graded measure: expected turns-to-kill the current location's boss, and the fraction of
    4| //! max HP left when it dies, at levels 1 / 10 / 25, each with the best gear affordable from a
    5| //! fixed gold budget. The three classes must land within ±10% of each other on both numbers at
    6| //! every reference point, and nobody may die.
    7| 
    8| use serde::{Deserialize, Serialize};
    9| 
   10| use crate::core::rng::{Rng, BALANCE_SEED};
   11| use crate::core::stats::{damage_formula, Class, Character, Derived};
   12| 
   13| /// Reference levels the balance test is evaluated at.
   14| pub const REFERENCE_LEVELS: [u32; 3] = [1, 10, 25];
   15| 
   16| /// Gold budget available at each reference level (paired with REFERENCE_LEVELS).
   17| pub const BUDGETS: [u32; 3] = [260, 1400, 6000];
   18| 
   19| /// Location index per reference level: Ember Fields, Ashen Woods, Cinder Mines.
   20| pub const REFERENCE_LOCATIONS: [usize; 3] = [0, 1, 2];
   21| 
   22| /// Location tier (1..4) per reference level.
   23| pub const REFERENCE_TIERS: [u32; 3] = [1, 2, 3];
   24| 
   25| /// Location display names, index-aligned with `REFERENCE_LOCATIONS`.
   26| pub const LOCATION_NAMES: [&str; 4] = [
   27|     "Ember Fields",
   28|     "Ashen Woods",
   29|     "Cinder Mines",
   30|     "Obsidian Keep",
   31| ];
   32| 
 

src/core/balance.rs: 412 lines, showing 399-412
  399|     #[test]
  400|     fn boss_scales_above_mobs_and_price_grows_superlinear() {
  401|         let l10 = scale(10, 2);
  402|         assert!(l10 > 1.0);
  403|         assert!(item_price(20, 0) > item_price(10, 0) * 2 / 2);
  404|         assert!(item_price(20, 0) > item_price(19, 0));
  405|     }
  406| 
  407|     #[test]
  408|     fn cha_discount_reduces_price_and_caps() {
  409|         assert!(price_after_cha(1000, 15) < 1000);
  410|         assert!((cha_discount(200) - 0.25).abs() < 1e-6);
  411|     }
  412| }

edited src/core/stats.rs: -27 +26 chars; file is now 293 lines

wrote src/core/save.rs: 9425 chars, 241 lines

exit=1
error: unexpected argument '2>&1' found

Usage: cargo test [OPTIONS] [TESTNAME] [-- [ARGS]...]

For more information, try '--help'.

exit=0
running 6 tests
test core::save::tests::new_game_gives_60_stat_points ... ok
test core::save::tests::empty_slot_is_not_a_run ... ok
test core::save::tests::slot_keys_are_distinct_and_index_pure ... ok
test core::save::tests::new_game_is_seeded_deterministically ... ok
test core::save::tests::version_mismatch_is_reported ... ok
test core::save::tests::round_trip_is_lossless_for_all_three_slots ... ok

test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 38 filtered out; finished in 0.00s


   Compiling emberfall v0.1.0 (/home/zerc/rpgbench/game)
warning: unused imports: `Deserialize` and `Serialize`
 --> src/core/rng.rs:9:13
  |
9 | use serde::{Deserialize, Serialize};
  |             ^^^^^^^^^^^  ^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default

warning: unused variable: `e`
   --> src/core/save.rs:153:13
    |
153 |         Err(e) => match serde_json::from_str::<serde_json::Value>(json) {
    |             ^ help: if this is intentional, prefix it with an underscore: `_e`
    |
    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default

warning: `emberfall` (bin "emberfall" test) generated 2 warnings (run `cargo fix --bin "emberfall" -p emberfall --tests` to apply 2 suggestions)
    Finished `test` profile [unoptimized + debuginfo] target(s) in 2.17s
     Running unittests src/main.rs (/home/zerc/rpgbench/target/debug/deps/emberfall-97c9a580c445fc95)

edited src/core/save.rs: -65 +65 chars; file is now 241 lines

edited src/core/rng.rs: -78 +41 chars; file is now 108 lines

edited src/core/shop.rs: -245 +583 chars; file is now 347 lines

edited src/core/shop.rs: -64 +121 chars; file is now 348 lines

edited src/core/shop.rs: -121 +379 chars; file is now 352 lines

edited src/core/shop.rs: -247 +881 chars; file is now 369 lines

edited src/core/shop.rs: -95 +246 chars; file is now 372 lines

edited src/core/shop.rs: -126 +502 chars; file is now 383 lines

ERROR:  is outside this phase's SCOPE (src/core/shop.rs, src/core/events.rs, src/core/save.rs). Files outside the scope are earlier phases' work and are not graded now; a failing test there is expected and NOT your task. If the brief truly requires the change, repeat the call with override_reason="<why>".

edited src/core/shop.rs: -155 +3036 chars; file is now 466 lines

ERROR: `old` occurs 0 times in src/core/shop.rs (must be exactly 1)

src/core/shop.rs: 466 lines, showing 150-279
  150|                     PRICE_STAT_POTION_COMMON
  151|                 }
  152|             }
  153|         }
  154|     }
  155| }
  156| 
  157| /// HP-potion restore fraction; MP-potion restore fraction; buff duration in turns.
  158| pub const BUFF_TURNS: u32 = 6;
  159| 
  160| /// One thing on sale: gear or a potion, with the price *already* discounted by the visitor's CHA
  161| /// (potions keep their sticker price).
  162| #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
  163| pub enum Offer {
  164|     Gear { item: Item, paid_price: u32 },
  165|     Potion { potion: Potion, price: u32 },
  166| }
  167| 
  168| /// The whole shop as presented on a visit.
  169| #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
  170| pub struct Shop {
  171|     /// Generated gear: exactly `STOCK_SLOTS` entries, power growing with the visit.
  172|     pub stock: Vec<Offer>,
  173|     /// The level and location tier the stock was generated for.
  174|     pub level: u32,
  175|     pub tier: u32,
  176|     /// Visitor's CHA at generation time (drives the discount baked into `paid_price`).
  177|     pub cha: u32,
  178|     /// Visit counter, used to mix the restock stream deterministically.
  179|     pub visit: u32,
  180| }
  181| 
  182| impl Shop {
  183|     /// Generate a full shop for a visit: `STOCK_SLOTS` pieces of gear whose power tracks
  184|     /// `level`/`tier`, plus the potion bench with the 

edited src/core/shop.rs: -439 +251 chars; file is now 461 lines

rs files: 9
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 0/0 pass; failing: none; ignored: 0
compile errors: ['cannot find value `WEAPON_AFFIXES` in this scope', 'cannot find value `ARMOR_AFFIXES` in this scope', 'cannot find function `roll_power` in this scope', 'cannot find function `affix_scale` in this scope', 'cannot find function `affix_target` in this scope', 'cannot find function `pick_stem` in this scope', 'cannot find function `prefix_for` in this scope', 'cannot find function `roll_stat_potion` in this scope', 'cannot find function `roll_buff` in this scope'] (test build exit 101)
clippy: 10 warnings+errors (exit 101)
dist/ with .wasm present: False

appended 4920 chars to src/core/shop.rs; file is now 593 lines

rs files: 9
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 0/0 pass; failing: none; ignored: 0
compile errors: ['the name `expected_power` is defined multiple times', 'no method named `with_label` found for enum `shop::Potion` in the current scope', 'cannot borrow `vrng` as mutable, as it is not declared as mutable'] (test build exit 101)
clippy: 5 warnings+errors (exit 101)
dist/ with .wasm present: False

src/core/shop.rs: 593 lines, showing 280-339
  280|     /// Sell an item back: `floor(SALE_RATE * paid price)` refunded, item removed.
  281|     pub fn sell(&mut self, index: usize, gold: &mut u32) -> u32 {
  282|         let _ = (index, gold);
  283|         todo!()
  284|     }
  285| 
  286|     /// Price of offer `index` for a buyer with `cha` — the displayed, discounted price.
  287|     pub fn price(&self, index: usize, cha: u32) -> u32 {
  288|         let _ = (index, cha);
  289|         todo!()
  290|     }
  291| 
  292|     /// The stock as gear only (indices into `stock`), for the loadout screen.
  293|     pub fn gear(&self) -> Vec<usize> {
  294|         todo!()
  295|     }
  296| }
  297| 
  298| /// Why a purchase was refused.
  299| #[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
  300| pub enum BuyError {
  301|     /// Not enough gold — nothing changed.
  302|     NotEnoughGold { price: u32, gold: u32 },
  303|     /// No such offer.
  304|     NoSuchOffer,
  305| }
  306| 
  307| /// Expected power of gear generated at `level`/`tier` — the monotonicity target the tests assert
  308| /// against: `power` is non-decreasing in expectation as either input rises.
  309| pub fn expected_power(level: u32, tier: u32) -> f32 {
  310|     let _ = (level, tier);
  311|     todo!()
  312| }
  313| 
  314| #[cfg(test)]
  315| mod tests {
  316|     use super::*;
  317|     use crate::core::rng::Rng;
  318| 
  319|     fn gen(level: u32, tier: u32

src/core/shop.rs: 593 lines, showing 474-593
  474|     "Def", "Def", "Def", "Def",             // weighted x4
  475|     "Evasion +%", "Max HP", "Max MP", "Speed +%",
  476| ];
  477| 
  478| /// Item-name stems, one picked per generated item.
  479| const WEAPON_STEMS: &[&str] = &[
  480|     "Blade", "Axe", "Rook", "Bite", "Spine", "Edge", "Fang", "Brand", "Cleave", "Reed",
  481| ];
  482| const ARMOR_STEMS: &[&str] = &[
  483|     "Plate", "Hearth", "Aegis", "Veil", "Guard", "Shell", "Mantle", "Vest", "Ward", "Link",
  484| ];
  485| 
  486| /// Item level: `max(1, round(level)) + roll(0..=2) + tier bonus (0..=tier) + 1 in 8 spike`.
  487| /// Monotonic in expectation in both `level` and `tier`.
  488| fn roll_power(level: u32, tier: u32, rng: &mut Rng) -> u32 {
  489|     let mut p = level.max(1) + rng.range_usize(0, 3) as u32;
  490|     if rng.chance(0.5) {
  491|         p += 1; // tier bonus, at least sometimes
  492|     }
  493|     if rng.chance(0.25) {
  494|         p += 1;
  495|     }
  496|     if rng.chance(0.125) {
  497|         p += 2; // rare spike
  498|     }
  499|     p.max(1)
  500| }
  501| 
  502| /// Roll the stat-potion kind: common-expensive (~55%), else rare-cheap (~6%), else none.
  503| fn roll_stat_potion(rng: &mut Rng) -> Potion {
  504|     if rng.chance(STAT_POTION_COMMON_RATE) {
  505|         Potion::Stat { stat: pick_primary(rng), is_rare: false }
  506|     } else if rng.chance(STAT_POTION_RARE_RATE / (STAT_POTION_COMMON_RATE + f32:

edited src/core/shop.rs: -283 +12 chars; file is now 586 lines

ERROR: `old` occurs 0 times in src/core/shop.rs (must be exactly 1)

src/core/shop.rs: 586 lines, showing 186-199
  186|     ///
  187|     /// Determinism: identical `(level, tier, cha, visit)` and the same `rng` state produce an
  188|     /// identical shop.
  189|     pub fn generate(level: u32, tier: u32, cha: u32, visit: u32, rng: &mut Rng) -> Self {
  190|         // The restock stream is the caller's `rng`, advanced once per visit: two visits from the
  191|         // same seed never restock identical shelves, while the same (level, tier, cha, visit)
  192|         // chain replays byte-identically.
  193|         let vrng = rng;
  194| 
  195|         let mut stock = Vec::with_capacity(STOCK_SLOTS + 4);
  196| 
  197|         // --- generated gear -------------------------------------------------
  198|         for _ in 0..STOCK_SLOTS {
  199|             let slot = if vrng.chance(0.5) { GearSlot::Weapon } else { GearSlot::Armor };

exit=1
error: unexpected argument '2>&1' found

Usage: cargo check [OPTIONS]

For more information, try '--help'.

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
error[E0599]: no method named `with_label` found for enum `Potion` in the current scope
   --> src/core/shop.rs:527:51
    |
125 | pub enum Potion {
    | --------------- method `with_label` not found for this enum
...
527 |     Potion::Buff { stat, pct, turns: BUFF_TURNS }.with_label(label)
    |                                                   ^^^^^^^^^^ method not found in `Potion`

error[E0596]: cannot borrow `vrng` as mutable, as it is not declared as mutable
   --> src/core/shop.rs:193:13
    |
193 |         let vrng = rng;
    |             ^^^^ not mutable
...
200 |             let power = roll_power(level, tier, &mut vrng);
    |                                                 --------- cannot borrow as mutable
...
211 |                 let scale = affix_scale(label, power, &mut vrng);
    |                                                       --------- cannot borrow as mutable
...
219 |             let stem = pick_stem(slot, &mut vrng);
    |                                        --------- cannot borrow as mutable
...
251 |         let stat = roll_stat_potion(&mut vrng);
    |                                     --------- cannot borrow as mutable
...
257 |         let buff = roll_buff(&mut vrng);
    |                              --------- cannot borrow as mutable
    |
note: the binding is already a mutable borrow
   --> src/core/shop.rs:193:13
    |
193 |         let vrng = rng;
    |             ^^

src/core/shop.rs: 586 lines, showing 100-279
  100|         self.affixes
  101|             .iter()
  102|             .filter(|a| {
  103|                 let l = &a.label;
  104|                 l.starts_with("Phys") || l.starts_with("Magic")
  105|             })
  106|             .map(|a| a.value)
  107|             .sum()
  108|     }
  109| 
  110|     /// Total defence contribution: the `Def` affix plus the armour's base defence.
  111|     pub fn defence_contribution(&self) -> f32 {
  112|         let rolled: f32 = self
  113|             .affixes
  114|             .iter()
  115|             .filter(|a| a.label.starts_with("Def"))
  116|             .map(|a| a.value)
  117|             .sum();
  118|         rolled + self.base_def
  119|     }
  120| }
  121| 
  122| /// A potion the shop can stock. The two `Stat` variants are the spec's deliberate pair:
  123| /// one is cheap but rare, the other expensive but common.
  124| #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
  125| pub enum Potion {
  126|     /// Restore 45% of `max_hp`.
  127|     Hp,
  128|     /// Restore 50% of `max_mp`.
  129|     Mp,
  130|     /// `+pct` (e.g. 0.25) to one derived stat for `turns` turns (buff potions last `BUFF_TURNS`).
  131|     Buff { stat: AffixTarget, pct: f32, turns: u32 },
  132|     /// Permanently +1 to one primary stat (STR/WILL/CON/DEX/INT/CHA). `rare` picks which of the
  133|     /// two economy variants this is: rare-cheap (25g, ~6% of visits) or commo

src/core/shop.rs: 586 lines, showing 460-579
  460| const WEAPON_AFFIXES: &[&str] = &[
  461|     "Phys dmg", "Phys dmg", "Phys dmg",     // weighted x3
  462|     "Magic dmg", "Crit +%", "Speed +%",
  463| ];
  464| 
  465| /// Armour affix pool. `Def` is the weighted one; it feeds `Item::defence_contribution`.
  466| const ARMOR_AFFIXES: &[&str] = &[
  467|     "Def", "Def", "Def", "Def",             // weighted x4
  468|     "Evasion +%", "Max HP", "Max MP", "Speed +%",
  469| ];
  470| 
  471| /// Item-name stems, one picked per generated item.
  472| const WEAPON_STEMS: &[&str] = &[
  473|     "Blade", "Axe", "Rook", "Bite", "Spine", "Edge", "Fang", "Brand", "Cleave", "Reed",
  474| ];
  475| const ARMOR_STEMS: &[&str] = &[
  476|     "Plate", "Hearth", "Aegis", "Veil", "Guard", "Shell", "Mantle", "Vest", "Ward", "Link",
  477| ];
  478| 
  479| /// Item level: `max(1, round(level)) + roll(0..=2) + tier bonus (0..=tier) + 1 in 8 spike`.
  480| /// Monotonic in expectation in both `level` and `tier`.
  481| fn roll_power(level: u32, tier: u32, rng: &mut Rng) -> u32 {
  482|     let mut p = level.max(1) + rng.range_usize(0, 3) as u32;
  483|     if rng.chance(0.5) {
  484|         p += 1; // tier bonus, at least sometimes
  485|     }
  486|     if rng.chance(0.25) {
  487|         p += 1;
  488|     }
  489|     if rng.chance(0.125) {
  490|         p += 2; // rare spike
  491|     }
  492|     p.max(1)
  493| }
  494| 
  495| /// Roll the stat-potion kind: common-expensi

edited src/core/shop.rs: -148 +226 chars; file is now 592 lines

edited src/core/shop.rs: -106 +151 chars; file is now 597 lines

edited src/core/shop.rs: -15 +21 chars; file is now 597 lines

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
error[E0596]: cannot borrow `vrng` as mutable, as it is not declared as mutable
   --> src/core/shop.rs:199:13
    |
199 |         let vrng = &mut *rng;
    |             ^^^^ not mutable
...
206 |             let power = roll_power(level, tier, &mut vrng);
    |                                                 --------- cannot borrow as mutable
...
217 |                 let scale = affix_scale(label, power, &mut vrng);
    |                                                       --------- cannot borrow as mutable
...
225 |             let stem = pick_stem(slot, &mut vrng);
    |                                        --------- cannot borrow as mutable
...
257 |         let stat = roll_stat_potion(&mut vrng);
    |                                     --------- cannot borrow as mutable
...
263 |         let buff = roll_buff(&mut vrng);
    |                              --------- cannot borrow as mutable
    |
note: the binding is already a mutable borrow
   --> src/core/shop.rs:199:13
    |
199 |         let vrng = &mut *rng;
    |             ^^^^
note: the binding is already a mutable borrow
   --> src/core/shop.rs:199:13
    |
199 |         let vrng = &mut *rng;
    |             ^^^^
note: the binding is already a mutable borrow
   --> src/core/shop.rs:199:13
    |
199 |         let vrng = &mut *rng;
    |             ^^^^
note: the binding is already a mutable borrow
   --> src/core/shop.rs:199:13
    |
199 |   

edited src/core/shop.rs: -83 +52 chars; file is now 595 lines

edited src/core/shop.rs: -137 +130 chars; file is now 595 lines

src/core/shop.rs: 595 lines, showing 205-244
  205|             let n_affixes = vrng.range_usize(AFFIX_MIN as usize, AFFIX_MAX as usize + 1) as u32;
  206| 
  207|             let pool: &[&str] = match slot {
  208|                 GearSlot::Weapon => WEAPON_AFFIXES,
  209|                 GearSlot::Armor => ARMOR_AFFIXES,
  210|             };
  211|             let mut affixes = Vec::with_capacity(n_affixes as usize);
  212|             for _ in 0..n_affixes {
  213|                 let pick = vrng.range_usize(0, pool.len());
  214|                 let label = pool[pick];
  215|                 let scale = affix_scale(label, power, &mut vrng);
  216|                 affixes.push(Affix {
  217|                     label: label.to_string(),
  218|                     stat: affix_target(label),
  219|                     value: scale,
  220|                 });
  221|             }
  222| 
  223|             let stem = pick_stem(slot, &mut vrng);
  224|             let name = format!("{} {}-{}", prefix_for(power), stem, power);
  225|             let price = item_price(power, affixes.len() as u32);
  226|             let base_def = match slot {
  227|                 GearSlot::Armor => 0.30 * power as f32,
  228|                 GearSlot::Weapon => 0.0,
  229|             };
  230|             let paid_price = price_after_cha(price, cha);
  231| 
  232|             stock.push(Offer::Gear {
  233|                 item: Item {
  234|                     name,
  235|             

edited src/core/shop.rs: -84 +83 chars; file is now 595 lines

edited src/core/shop.rs: -149 +142 chars; file is now 595 lines

edited src/core/shop.rs: -38 +32 chars; file is now 595 lines

edited src/core/shop.rs: -39 +33 chars; file is now 595 lines

edited src/core/shop.rs: -32 +26 chars; file is now 595 lines

exit=0
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
warning: unused variable: `tier`
   --> src/core/shop.rs:485:27
    |
485 | fn roll_power(level: u32, tier: u32, rng: &mut Rng) -> u32 {
    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_tier`
    |
    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default

warning: `emberfall` (bin "emberfall") generated 1 warning (run `cargo fix --bin "emberfall" -p emberfall` to apply 1 suggestion)
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.57s

exit=0
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
warning: unused variable: `tier`
   --> src/core/shop.rs:485:27
    |
485 | fn roll_power(level: u32, tier: u32, rng: &mut Rng) -> u32 {
    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_tier`
    |
    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default

warning: `emberfall` (bin "emberfall") generated 1 warning (run `cargo fix --bin "emberfall" -p emberfall` to apply 1 suggestion)
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.82s

exit=0
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
warning: unused variable: `tier`
   --> src/core/shop.rs:485:27
    |
485 | fn roll_power(level: u32, tier: u32, rng: &mut Rng) -> u32 {
    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_tier`
    |
    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default

warning: accessing first element with `at.get(0)`
   --> src/core/balance.rs:314:21
    |
314 |                     at.get(0).map(|r| r.ttk).unwrap_or_else(|| get(0)),
    |                     ^^^^^^^^^ help: try: `at.first()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.98.0/index.html#get_first
    = note: `#[warn(clippy::get_first)]` on by default

warning: accessing first element with `at.get(0)`
   --> src/core/balance.rs:319:21
    |
319 |                     at.get(0).map(|r| r.hp_left).unwrap_or_else(|| get(1)),
    |                     ^^^^^^^^^ help: try: `at.first()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.98.0/index.html#get_first

warning: this function has too many arguments (9/7)
   --> src/core/battle.rs:328:5
    |
328 | /     pub fn new_battle(
329 | |         player: &Character,
330 | |         gear_atk: f32,
331 | |         gear_def: f32,
...   |
337 | |         rng: &mut Rng,
338 | |     ) -> Self {
    | |_____________^
    |
    = help: for further information visi

exit=101
running 44 tests
test core::balance::tests::boss_scales_above_mobs_and_price_grows_superlinear ... ok
test core::balance::tests::cha_discount_reduces_price_and_caps ... ok
test core::battle::tests::four_locations_each_with_3_mobs_and_a_boss ... ok
test core::battle::tests::companion_effect_applies_then_expires ... ok
test core::events::tests::gold_bonus_applies_only_while_following ... FAILED
test core::battle::tests::different_seeds_diverge ... FAILED
test core::battle::tests::respawn_keeps_90_percent_of_gold ... ok
test core::battle::tests::every_location_boss_is_bearable_at_reference_levels ... FAILED
test core::battle::tests::evasion_and_crit_are_bounded ... ok
test core::battle::tests::same_seed_replays_identical_battle_log ... ok
test core::battle::tests::turn_order_follows_speed ... ok
test core::rng::tests::same_seed_replays_same_stream ... ok
test core::events::tests::companion_leaves_after_2_to_3_turns ... FAILED
test core::events::tests::events_only_roll_on_the_interval ... FAILED
test core::events::tests::stranger_table_matches_documented_thresholds ... FAILED
test core::battle::tests::damage_is_at_least_one_and_decreases_with_defence ... ok
test core::events::tests::events_roll_with_documented_probabilities ... FAILED
test core::events::tests::stranger_joins_iff_cha_meets_threshold ... FAILED
test core::save::tests::empty_slot_is_not_a_run ... ok
test core::save::tests::new_game_gives_60_stat_points ... ok
test core::battle::tests::auto_potion_rules_trig

ERROR: only these cargo subcommands are allowed: ['build', 'check', 'clippy', 'fmt', 'metadata', 'run', 'test', 'tree']

src/core/shop.rs: 595 lines, showing 280-349
  280|         let _ = (index, gold, rng);
  281|         todo!()
  282|     }
  283| 
  284|     /// Sell an item back: `floor(SALE_RATE * paid price)` refunded, item removed.
  285|     pub fn sell(&mut self, index: usize, gold: &mut u32) -> u32 {
  286|         let _ = (index, gold);
  287|         todo!()
  288|     }
  289| 
  290|     /// Price of offer `index` for a buyer with `cha` — the displayed, discounted price.
  291|     pub fn price(&self, index: usize, cha: u32) -> u32 {
  292|         let _ = (index, cha);
  293|         todo!()
  294|     }
  295| 
  296|     /// The stock as gear only (indices into `stock`), for the loadout screen.
  297|     pub fn gear(&self) -> Vec<usize> {
  298|         todo!()
  299|     }
  300| }
  301| 
  302| /// Why a purchase was refused.
  303| #[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
  304| pub enum BuyError {
  305|     /// Not enough gold — nothing changed.
  306|     NotEnoughGold { price: u32, gold: u32 },
  307|     /// No such offer.
  308|     NoSuchOffer,
  309| }
  310| 
  311| #[cfg(test)]
  312| mod tests {
  313|     use super::*;
  314|     use crate::core::rng::Rng;
  315| 
  316|     fn gen(level: u32, tier: u32, cha: u32, visit: u32, seed: u64) -> Shop {
  317|         let mut rng = Rng::new(seed);
  318|         Shop::generate(level, tier, cha, visit, &mut rng)
  319|     }
  320| 
  321|     /// Stock is exactly `STOCK_SLOTS` pieces of g

exit=1
Diff in /home/zerc/rpgbench/game/src/core/balance.rs:8:
 use serde::{Deserialize, Serialize};
 
 use crate::core::rng::{Rng, BALANCE_SEED};
-use crate::core::stats::{damage_formula, Class, Character, Derived};
+use crate::core::stats::{damage_formula, Character, Class, Derived};
 
 /// Reference levels the balance test is evaluated at.
 pub const REFERENCE_LEVELS: [u32; 3] = [1, 10, 25];
Diff in /home/zerc/rpgbench/game/src/core/balance.rs:58:
 /// that the three damage curves are comparable rather than degenerate.
 pub fn boss_bases() -> [BossBase; 4] {
     [
-        BossBase { name: "Ember Warden", hp: 130.0, atk: 11.0, def: 6.0 },
-        BossBase { name: "Ashen Stag", hp: 210.0, atk: 17.0, def: 11.0 },
-        BossBase { name: "Mine Tyrant", hp: 320.0, atk: 25.0, def: 18.0 },
-        BossBase { name: "Obsidian Herald", hp: 470.0, atk: 35.0, def: 27.0 },
+        BossBase {
+            name: "Ember Warden",
+            hp: 130.0,
+            atk: 11.0,
+            def: 6.0,
+        },
+        BossBase {
+            name: "Ashen Stag",
+            hp: 210.0,
+            atk: 17.0,
+            def: 11.0,
+        },
+        BossBase {
+            name: "Mine Tyrant",
+            hp: 320.0,
+            atk: 25.0,
+            def: 18.0,
+        },
+        BossBase {
+            name: "Obsidian Herald",
+            hp: 470.0,
+            atk: 35.0,
+            def: 27.0,
+        },
     ]
 }
 
Diff in /home/zerc/rpgbench/game/src/core/balance.r

rs files: 9
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::buying_pays_the_discounted_price', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 0
dist/ with .wasm present: False

src/core/battle.rs: 1037 lines, showing 1-180
    1| //! Turn-based idle battle: combatants, enemies, locations, turn order, auto-potions,
    2| //! death/respawn and companion effects.
    3| //!
    4| //! All randomness comes from `core::rng::Rng`. No other entropy source.
    5| //! Stat math lives in `core::stats`; enemy scaling, boss multipliers and pricing live in
    6| //! `core::balance`. This module orchestrates them, it never re-derives them.
    7| 
    8| use serde::{Deserialize, Serialize};
    9| 
   10| use crate::core::rng::Rng;
   11| use crate::core::stats::{damage_formula, Character, Derived};
   12| 
   13| /// Hard stop for a single fight, mirroring the balance harness.
   14| pub const MAX_TURNS: u32 = 400;
   15| /// A fight that stays inside this many turns is "clearable" (the test contract).
   16| pub const N_TURNS_CLEAR: u32 = 60;
   17| /// HP fraction below which the auto-potion rule drinks an HP potion.
   18| pub const HP_POTION_THRESHOLD: f32 = 0.35;
   19| /// Fraction of `max_hp` an HP potion restores.
   20| pub const HP_POTION_RESTORE: f32 = 0.45;
   21| /// Fraction of `max_mp` an MP potion restores.
   22| pub const MP_POTION_RESTORE: f32 = 0.50;
   23| /// A buff potion's +25% on one derived stat, lasting `BUFF_TURNS` turns.
   24| pub const BUFF_PCT: f32 = 0.25;
   25| /// Turns a buff potion lasts.
   26| pub const BUFF_TURNS: u32 = 6;
   27| /// Fraction of gold lost on death (docs/mechanics.md §8).
   28| pub const DEATH_GOLD_RATE

src/core/shop.rs: 595 lines, showing 1-140
    1| //! Weapon/armor generation with power growth, potions, pricing, buying and selling.
    2| //!
    3| //! Pricing and the CHA discount are *not* recomputed here — they are the single-source functions
    4| //! in `core::balance` (`item_price`, `price_after_cha`, `cha_discount`). This module decides what
    5| //! the shop contains and who may take it.
    6| //!
    7| //! Determinism: every draw comes from the `Rng` passed to [`Shop::generate`], and `visit` is
    8| //! mixed into the stream, so two visits never restock identical shelves while the same
    9| //! `(level, tier, cha, visit)` always replays byte-identically.
   10| //!
   11| //! Pricing and the CHA discount are *not* recomputed here — they are the single-source functions
   12| //! in `core::balance` (`item_price`, `price_after_cha`, `cha_discount`). This module decides what
   13| //! the shop contains and who may take it.
   14| 
   15| use serde::{Deserialize, Serialize};
   16| 
   17| use crate::core::balance::{item_price, price_after_cha};
   18| use crate::core::rng::Rng;
   19| 
   20| /// Slots of generated gear offered per visit. Restocks on every visit.
   21| pub const STOCK_SLOTS: usize = 6;
   22| 
   23| /// Minimum and maximum affixes a generated item can carry (docs/mechanics.md §6).
   24| pub const AFFIX_MIN: u32 = 0;
   25| pub const AFFIX_MAX: u32 = 3;
   26| 
   27| /// Gold returned on a sale, as a fraction of the price actually paid

src/core/shop.rs: 595 lines, showing 140-339
  140|     /// (240g, ~55% of visits). The primary is named as a string so `shop.rs` does not depend on
  141|     /// a `stats::Primary` type that does not exist yet.
  142|     Stat { stat: String, is_rare: bool },
  143| }
  144| 
  145| impl Potion {
  146|     /// Price for this potion (fixed, no CHA discount).
  147|     pub fn price(&self) -> u32 {
  148|         match self {
  149|             Potion::Hp => PRICE_HP_POTION,
  150|             Potion::Mp => PRICE_MP_POTION,
  151|             Potion::Buff { .. } => PRICE_BUFF_POTION,
  152|             Potion::Stat { is_rare, .. } => {
  153|                 if *is_rare {
  154|                     PRICE_STAT_POTION_RARE
  155|                 } else {
  156|                     PRICE_STAT_POTION_COMMON
  157|                 }
  158|             }
  159|         }
  160|     }
  161| }
  162| 
  163| /// HP-potion restore fraction; MP-potion restore fraction; buff duration in turns.
  164| pub const BUFF_TURNS: u32 = 6;
  165| 
  166| /// One thing on sale: gear or a potion, with the price *already* discounted by the visitor's CHA
  167| /// (potions keep their sticker price).
  168| #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
  169| pub enum Offer {
  170|     Gear { item: Item, paid_price: u32 },
  171|     Potion { potion: Potion, price: u32 },
  172| }
  173| 
  174| /// The whole shop as presented on a visit.
  175| #[derive(Debug, Clone, PartialEq, Seri

src/core/events.rs: 230 lines, showing 1-230
    1| //! Random travel events and CHA-gated companions.
    2| //!
    3| //! INTERFACE PHASE (phase 2). Bodies are `todo!()`; phase 3 implements them. The tests below are
    4| //! the contract. All draws go through `core::rng::Rng` — an event roll must never touch any other
    5| //! entropy source, which is what makes the probability tests reproducible.
    6| 
    7| use serde::{Deserialize, Serialize};
    8| 
    9| use crate::core::rng::Rng;
   10| 
   11| /// Roll one event every `EVENT_EVERY` turns while travelling, and once per town visit.
   12| pub const EVENT_EVERY: u32 = 5;
   13| 
   14| /// Documented event probabilities (docs/mechanics.md §7). These sum to 1.0 and are the exact
   15| /// numbers the sampled test asserts against.
   16| pub const P_TREASURE: f32 = 0.30;
   17| pub const P_AMBUSH: f32 = 0.25;
   18| pub const P_SHRINE: f32 = 0.20;
   19| pub const P_MERCHANT: f32 = 0.15;
   20| pub const P_STRANGER: f32 = 0.10;
   21| 
   22| /// A stranger offer, resolved once by `try_recruit` — no rerolls.
   23| #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
   24| pub struct Stranger {
   25|     pub name: String,
   26|     /// CHA required for the stranger to join. `cha >= cha_threshold` succeeds; anything less and
   27|     /// the stranger simply leaves.
   28|     pub cha_threshold: u32,
   29|     /// How many turns they stay once recruited: 2 or 3 by design.
   30|     pub turns: u32,
   

src/core/battle.rs: 1037 lines, showing 180-379
  180|             min_level: 1,
  181|             requires_prev_boss: false,
  182|         },
  183|         Location {
  184|             name: LOCATION_NAMES[1],
  185|             tier: 2,
  186|             mobs: vec![
  187|                 MobEntry { name: "Ash Fawn", hp: 96.0, atk: 10.0, def: 5.0, gold: 12.0, xp: 11.0 },
  188|                 MobEntry { name: "Bramble Wisp", hp: 110.0, atk: 12.0, def: 6.0, gold: 14.0, xp: 13.0 },
  189|                 MobEntry { name: "Hollow Sentry", hp: 130.0, atk: 14.0, def: 8.0, gold: 17.0, xp: 15.0 },
  190|             ],
  191|             boss: ashen.name,
  192|             min_level: 8,
  193|             requires_prev_boss: true,
  194|         },
  195|         Location {
  196|             name: LOCATION_NAMES[2],
  197|             tier: 3,
  198|             mobs: vec![
  199|                 MobEntry { name: "Cinder Crawler", hp: 150.0, atk: 16.0, def: 10.0, gold: 20.0, xp: 18.0 },
  200|                 MobEntry { name: "Ore Golem", hp: 180.0, atk: 19.0, def: 13.0, gold: 24.0, xp: 21.0 },
  201|                 MobEntry { name: "Deep Echo", hp: 210.0, atk: 22.0, def: 15.0, gold: 28.0, xp: 25.0 },
  202|             ],
  203|             boss: cinder.name,
  204|             min_level: 18,
  205|             requires_prev_boss: true,
  206|         },
  207|         Location {
  208|             name: LOCATION_NAMES[3],
  209|             tier: 4,
  210|             m

ERROR: ValueError: empty path — pass a file path relative to the crate root

src/core/battle.rs: 1037 lines, showing 380-519
  380|                     def: entry.def,
  381|                     speed: 1.0,
  382|                     evad: 0.0,
  383|                 });
  384|             }
  385|             if !pending.is_empty() {
  386|                 pending.remove(0);
  387|             }
  388|         }
  389| 
  390|         for c in companions {
  391|             combatants.push(Combatant::Companion {
  392|                 name: c.name,
  393|                 turns_left: c.turns_left,
  394|                 effect: c.effect,
  395|             });
  396|         }
  397| 
  398|         let mut state = BattleState {
  399|             location,
  400|             is_boss: boss,
  401|             order: Vec::new(),
  402|             combatants,
  403|             turn: 0,
  404|             gold_earned: 0,
  405|             potions_used: 0,
  406|             hero_dead: false,
  407|             log: Vec::new(),
  408|             pending_waves: if boss { 0 } else { waves.max(1) },
  409|             pending_alive: 0,
  410|             waves: if boss { 1 } else { waves.max(1) },
  411|             pending,
  412|             potions: potion_inventory,
  413|             entrance: false,
  414|             hero_buff_turns: 0,
  415|             companion_damage_bonus: 0.0,
  416|         };
  417| 
  418|         state.order = state.initiative();
  419|         state
  420|     }
  421| 
  422|     /// Advance exactly **one** turn.
  4

src/core/balance.rs: 412 lines, showing 1-70
    1| //! Class balance model + the balance table (docs/mechanics.md §5, §9).
    2| //!
    3| //! The graded measure: expected turns-to-kill the current location's boss, and the fraction of
    4| //! max HP left when it dies, at levels 1 / 10 / 25, each with the best gear affordable from a
    5| //! fixed gold budget. The three classes must land within ±10% of each other on both numbers at
    6| //! every reference point, and nobody may die.
    7| 
    8| use serde::{Deserialize, Serialize};
    9| 
   10| use crate::core::rng::{Rng, BALANCE_SEED};
   11| use crate::core::stats::{damage_formula, Class, Character, Derived};
   12| 
   13| /// Reference levels the balance test is evaluated at.
   14| pub const REFERENCE_LEVELS: [u32; 3] = [1, 10, 25];
   15| 
   16| /// Gold budget available at each reference level (paired with REFERENCE_LEVELS).
   17| pub const BUDGETS: [u32; 3] = [260, 1400, 6000];
   18| 
   19| /// Location index per reference level: Ember Fields, Ashen Woods, Cinder Mines.
   20| pub const REFERENCE_LOCATIONS: [usize; 3] = [0, 1, 2];
   21| 
   22| /// Location tier (1..4) per reference level.
   23| pub const REFERENCE_TIERS: [u32; 3] = [1, 2, 3];
   24| 
   25| /// Location display names, index-aligned with `REFERENCE_LOCATIONS`.
   26| pub const LOCATION_NAMES: [&str; 4] = [
   27|     "Ember Fields",
   28|     "Ashen Woods",
   29|     "Cinder Mines",
   30|     "Obsidian Keep",
   31| ];
   32| 
  

wrote src/ui/mod.rs: 1138 chars, 42 lines

wrote src/ui/hero_panel.rs: 5298 chars, 144 lines

wrote src/ui/start_screen.rs: 4374 chars, 128 lines

wrote src/ui/location_panel.rs: 4695 chars, 125 lines

wrote src/ui/battle_log.rs: 2582 chars, 66 lines

wrote src/ui/shop_panel.rs: 5171 chars, 136 lines

edited src/ui/shop_panel.rs: -108 +89 chars; file is now 136 lines

edited src/ui/shop_panel.rs: -405 +90 chars; file is now 127 lines

wrote src/ui/companion_panel.rs: 2164 chars, 54 lines

wrote src/ui/controls.rs: 1711 chars, 49 lines

[READ BUDGET EXCEEDED (9 reads > 8): showing at most 120 lines. Files you already read this phase are still in your context unless you changed them; the orientation packet at the start holds the focus files in full. Prefer editing and running verify.]
src/core/balance.rs: 412 lines, showing 70-149
   70| pub fn scale(level: u32, tier: u32) -> f32 {
   71|     (1.0 + GROWTH_PER_LEVEL * (level.max(1) - 1) as f32)
   72|         * (1.0 + GROWTH_PER_TIER * (tier.saturating_sub(1)) as f32)
   73| }
   74| 
   75| /// One scaled boss (base * scale * boss multiplier).
   76| #[derive(Debug, Clone, Copy, Serialize, Deserialize)]
   77| pub struct Boss {
   78|     pub name: &'static str,
   79|     pub hp: f32,
   80|     pub atk: f32,
   81|     pub def: f32,
   82| }
   83| 
   84| pub fn boss_at(level: u32, location: usize) -> Boss {
   85|     let idx = location.min(3);
   86|     let b = &boss_bases()[idx];
   87|     let s = scale(level, REFERENCE_TIERS[idx.min(REFERENCE_TIERS.len() - 1)]);
   88|     Boss {
   89|         name: b.name,
   90|         hp: b.hp * s * BOSS_HP,
   91|         atk: b.atk * s * BOSS_ATK,
   92|         def: b.def * s * BOSS_DEF,
   93|     }
   94| }
   95| 
   96| /// Gold value of a kill: scales with the same curve as the enemy's stats.
   97| #[inline]
   98| pub fn kill_gold(base: f32, level: u32, tier: u32) -> u32 {
   99|     (base * scale(level, tier)).round() as u32
  100| }
  101| 
  102| /// Price of a generated item with `power` and `affi

wrote src/ui/app.rs: 9206 chars, 279 lines

edited src/ui/app.rs: -124 +125 chars; file is now 279 lines

wrote src/main.rs: 1665 chars, 55 lines

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
error: expected item after doc comment
   --> src/ui/shop_panel.rs:127:1
    |
127 | /// Not used by the panel — the discounted price is already baked into each `Offer::Gear`.
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this doc comment doesn't document anything

error: `Bar` doesn't have a value. (hint: set the value to `true` or `false` for boolean attributes)
  --> src/ui/hero_panel.rs:53:15
   |
53 |             <@Bar label="HP" cur={format!("{} / {}", super::fmt::n(d.hp_pool), super::fmt::n(d.max_hp))}
   |               ^^^

error: `StatPreview` doesn't have a value. (hint: set the value to `true` or `false` for boolean attributes)
  --> src/ui/start_screen.rs:70:25
   |
70 |                       <@StatPreview class={class} />
   |                         ^^^^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/start_screen.rs:18:7
   |
18 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/start_screen.rs:15:7
   |
15 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/start_screen.rs:12:7
   |
12 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/location_panel.rs:18:7
   |
18 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  -

edited src/ui/mod.rs: -12 +12 chars; file is now 42 lines

edited src/ui/hero_panel.rs: -381 +378 chars; file is now 144 lines

[READ BUDGET EXCEEDED (10 reads > 8): showing at most 120 lines. Files you already read this phase are still in your context unless you changed them; the orientation packet at the start holds the focus files in full. Prefer editing and running verify.]
src/ui/hero_panel.rs: 144 lines, showing 40-69
   40|               <span class="crest">{ c.class.name() }</span>
   41|               <h2 class="panel-title">{ "Hero" }</h2>
   42|             </div>
   43|             <div class="row gap">
   44|               <span class="chip gold">{ format!("{} g", props.player.gold) }</span>
   45|             </div>
   46|           </div>
   47| 
   48|           <div class="row gap wrap">
   49|             <div class="statblock">
   50|               <span class="label">{ "Level" }</span>
   51|               <span class="big">{ c.level }</span>
   52|             </div>
   53|             <Bar label="HP" cur={format!("{} / {}", super::fmt::n(d.hp_pool), super::fmt::n(d.max_hp))}
   54|                  frac={hp_frac} kind="hp" />
   55|             <Bar label="MP" cur={format!("{} / {}", super::fmt::n(d.mp_pool), super::fmt::n(d.max_mp))}
   56|                  frac={mp_frac} kind="mp" />
   57|             <Bar label="XP" cur={format!("{} / {}", c.xp, need)} frac={xp_frac} kind="xp" />
   58|           </div>
   59| 
   60|           <h3 class="sub">{ "Primary stats" }</h3>
   61|           <div class="grid6">
   62|             { for s.iter().map(|(name, v)| html! {
   63|        

edited src/ui/hero_panel.rs: -946 +934 chars; file is now 144 lines

edited src/ui/hero_panel.rs: -31 +39 chars; file is now 144 lines

exit=1
error: unexpected argument '2>&1' found

Usage: cargo check [OPTIONS]

For more information, try '--help'.

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
error: expected item after doc comment
   --> src/ui/shop_panel.rs:127:1
    |
127 | /// Not used by the panel — the discounted price is already baked into each `Offer::Gear`.
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this doc comment doesn't document anything

error: `StatPreview` doesn't have a value. (hint: set the value to `true` or `false` for boolean attributes)
  --> src/ui/start_screen.rs:70:25
   |
70 |                       <@StatPreview class={class} />
   |                         ^^^^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/start_screen.rs:18:7
   |
18 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/start_screen.rs:15:7
   |
15 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/start_screen.rs:12:7
   |
12 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/location_panel.rs:18:7
   |
18 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/location_panel.rs:15:7
   |
15 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/location_panel.rs:12:7
   |
12 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  

src/ui/app.rs: 279 lines, showing 1-279
    1| //! App: the composition root. Owns which screen is up, the selected speed, and the sample
    2| //! `SaveGame` handed down as props. No game loop and no storage IO yet (phase 6); the
    3| //! callbacks here only move the UI between screens and echo into the log.
    4| 
    5| use yew::prelude::*;
    6| 
    7| use crate::r#core::battle::{location as loc_at, locations, BattleEvent};
    8| use crate::r#core::rng::Rng;
    9| use crate::r#core::save::{new_game, Player, SaveGame, SLOTS};
   10| use crate::r#core::shop::Shop;
   11| use crate::r#core::stats::Class;
   12| 
   13| use super::battle_log::BattleLog;
   14| use super::companion_panel::CompanionPanel;
   15| use super::controls::Controls;
   16| use super::hero_panel::HeroPanel;
   17| use super::location_panel::LocationPanel;
   18| use super::shop_panel::ShopPanel;
   19| use super::start_screen::StartScreen;
   20| 
   21| /// Which screen is up.
   22| #[derive(Debug, Clone, Copy, PartialEq, Eq)]
   23| pub enum Screen {
   24|     Start,
   25|     Game,
   26| }
   27| 
   28| #[derive(Properties, PartialEq, Clone)]
   29| pub struct AppProps {
   30|     /// The run to open with. `main.rs` passes one built by `core::save::new_game`, so the
   31|     /// page renders real numbers from the first paint.
   32|     #[prop_or_default]
   33|     pub initial: Option<SaveGame>,
   34| }
   35| 
   36| #[function_component(App)]
   37| pub fn app(props: &AppProps) -

src/ui/start_screen.rs: 128 lines, showing 1-128
    1| //! Start screen: New game with class selection + stat preview from `core::stats`, plus
    2| //! Load / Reset slot buttons that only emit callbacks (no storage IO here — phase 6).
    3| 
    4| use yew::prelude::*;
    5| 
    6| use crate::r#core::save::SLOTS;
    7| use crate::r#core::stats::{Class, POINTS_PER_LEVEL, PRIMARY_TOTAL};
    8| 
    9| #[derive(Properties, PartialEq, Clone)]
   10| pub struct StartScreenProps {
   11|     /// Emitted with the chosen class when "New game" is clicked.
   12|     #[callback]
   13|     pub on_new_game: Callback<Class>,
   14|     /// Emitted with the slot index (0..SLOTS) when "Load" is clicked.
   15|     #[callback]
   16|     pub on_load: Callback<u8>,
   17|     /// Emitted with the slot index (0..SLOTS) when "Reset" is clicked.
   18|     #[callback]
   19|     pub on_reset: Callback<u8>,
   20|     /// Slot index the new game would be written to (default 0).
   21|     #[prop_or_default]
   22|     pub slot: u8,
   23| }
   24| 
   25| #[function_component(StartScreen)]
   26| pub fn start_screen(props: &StartScreenProps) -> Html {
   27|     let picked = use_state(|| Class::Warrior);
   28| 
   29|     let on_pick = {
   30|         let picked = picked.clone();
   31|         move |class: Class| {
   32|             picked.set(class);
   33|         }
   34|     };
   35| 
   36|     let on_new = {
   37|         let picked = (*picked).clone();
   38|         let on_

src/ui/controls.rs: 49 lines, showing 1-49
    1| //! Controls: battle speed (x1/x2/x4/x8), Save, Back. Speed is a plain u32 multiplier — the
    2| //! timer itself is wired in phase 6; this control only reports the choice.
    3| 
    4| use yew::prelude::*;
    5| 
    6| /// The four allowed speeds.
    7| pub const SPEEDS: [u32; 4] = [1, 2, 4, 8];
    8| 
    9| #[derive(Properties, PartialEq, Clone)]
   10| pub struct ControlsProps {
   11|     /// Currently selected speed multiplier (1, 2, 4 or 8).
   12|     pub speed: u32,
   13|     /// Emitted with the new multiplier when a speed button is clicked.
   14|     #[callback]
   15|     pub on_speed: Callback<u32>,
   16|     /// Emitted when Save is clicked.
   17|     #[callback]
   18|     pub on_save: Callback<()>,
   19|     /// Emitted to go back (to the start screen).
   20|     #[callback]
   21|     pub on_back: Callback<()>,
   22|     /// Slot label shown on the Save button.
   23|     #[prop_or_default]
   24|     pub slot_label: AttrValue,
   25| }
   26| 
   27| #[function_component(Controls)]
   28| pub fn controls(props: &ControlsProps) -> Html {
   29|     html! {
   30|       <div class="controls">
   31|         <div class="speeds">
   32|           <span class="label">{ "Speed" }</span>
   33|           { for SPEEDS.iter().map(|s| {
   34|               let s = *s;
   35|               let active = s == props.speed;
   36|               let cb = props.on_speed.reform(move |_| s);
   37|              

src/ui/location_panel.rs: 125 lines, showing 1-125
    1| //! Location panel: current location, its enemy table, boss progress, travel buttons.
    2| 
    3| use yew::prelude::*;
    4| 
    5| use crate::r#core::battle::{is_unlocked, location as loc_at, locations};
    6| use crate::r#core::save::Player;
    7| 
    8| #[derive(Properties, PartialEq, Clone)]
    9| pub struct LocationPanelProps {
   10|     pub player: Player,
   11|     /// Emitted with the location index to travel to.
   12|     #[callback]
   13|     pub on_travel: Callback<usize>,
   14|     /// Emitted to start (or continue) the current location's boss fight.
   15|     #[callback]
   16|     pub on_fight_boss: Callback<()>,
   17|     /// Emitted to fight the current mob wave.
   18|     #[callback]
   19|     pub on_fight: Callback<()>,
   20| }
   21| 
   22| #[function_component(LocationPanel)]
   23| pub fn location_panel(props: &LocationPanelProps) -> Html {
   24|     let player = &props.player;
   25|     let level = player.character.level;
   26|     let all = locations();
   27|     let current = all.get(player.location.min(3)).cloned();
   28| 
   29|     let slain: Vec<&'static str> = player.slain_bosses.iter().map(|s| s.as_str()).collect();
   30| 
   31|     html! {
   32|         <div class="panel loc">
   33|           <h2 class="panel-title">{ "Locations" }</h2>
   34| 
   35|           if let Some(cur) = current {
   36|             <div class="loc-current">
   37|               <div 

src/ui/shop_panel.rs: 127 lines, showing 100-127
  100|         parts.push(format!("base def {}", crate::ui::fmt::n(item.base_def)));
  101|     }
  102|     parts.join(" · ")
  103| }
  104| 
  105| fn potion_name(p: &Potion) -> String {
  106|     match p {
  107|         Potion::Hp => "HP potion".into(),
  108|         Potion::Mp => "MP potion".into(),
  109|         Potion::Buff { label, .. } => format!("{} potion", if label.is_empty() { "Buff".to_string() } else { label.clone() }),
  110|         Potion::Stat { stat, is_rare } => {
  111|             format!("{stat} potion ({})", if *is_rare { "rare" } else { "common" })
  112|         }
  113|     }
  114| }
  115| 
  116| fn potion_note(p: &Potion) -> String {
  117|     match p {
  118|         Potion::Hp => "restores 45% of max HP".into(),
  119|         Potion::Mp => "restores 50% of max MP".into(),
  120|         Potion::Buff { pct, turns, .. } => {
  121|             format!("+{}% on one derived stat for {turns} turns", crate::ui::fmt::pct(*pct))
  122|         }
  123|         Potion::Stat { .. } => "permanently +1 to one primary stat".into(),
  124|     }
  125| }
  126| 
  127| /// Not used by the panel — the discounted price is already baked into each `Offer::Gear`.

src/main.rs: 55 lines, showing 1-55
    1| //! EMBERFALL entry point.
    2| //! Native: prints the balance table (the graded contract). wasm32: mounts the Yew app with a
    3| //! sample `SaveGame` built by `core::save::new_game`, so the page renders real numbers.
    4| 
    5| #[path = "core/mod.rs"]
    6| pub mod core;
    7| 
    8| #[cfg(target_arch = "wasm32")]
    9| #[path = "ui/mod.rs"]
   10| pub mod ui;
   11| 
   12| #[cfg(target_arch = "wasm32")]
   13| fn main() {
   14|     use crate::r#core::save::new_game;
   15|     use crate::r#core::stats::Class;
   16|     use crate::ui::app::App;
   17| 
   18|     let sample = new_game(Class::Warrior, 0, 0x5EB7_1F0C);
   19|     yew::Renderer::<App>::with_root(mount_point()).render_with_props(AppProps_of(sample));
   20| }
   21| 
   22| /// Build the props for `App` (kept out of `main` so the type stays nameable on wasm only).
   23| #[cfg(target_arch = "wasm32")]
   24| fn mount_point() -> web_sys::HtmlElement {
   25|     let doc = web_sys::window()
   26|         .and_then(|w| w.document())
   27|         .expect("no document");
   28|     doc.get_element_by_id("app")
   29|         .and_then(|e| e.dyn_into::<web_sys::HtmlElement>().ok())
   30|         .expect("#app element")
   31| }
   32| 
   33| #[cfg(target_arch = "wasm32")]
   34| fn AppProps_of(save: crate::r#core::save::SaveGame) -> crate::ui::app::AppProps {
   35|     crate::ui::app::AppProps {
   36|         initial: std::rc::Rc::new(Some(save)),
   3

src/ui/mod.rs: 42 lines, showing 1-42
    1| //! Yew 0.21 user interface. Compiled ONLY for wasm32 (see `src/main.rs`), so `cargo test`
    2| //! natively never pulls in yew/gloo. No game rules live here — every number on screen comes
    3| //! from `crate::r#core`. This layer is props-in / callbacks-out.
    4| 
    5| pub mod app;
    6| pub mod battle_log;
    7| pub mod companion_panel;
    8| pub mod controls;
    9| pub mod hero_panel;
   10| pub mod location_panel;
   11| pub mod shop_panel;
   12| pub mod start_screen;
   13| 
   14| /// Shared formatting helpers (pure, no DOM).
   15| pub mod fmt {
   16|     /// Render an f32 stat with one decimal, trimming `-0.0`.
   17|     pub fn n(v: f32) -> String {
   18|         if (v + 0.0).is_nan() {
   19|             return "—".into();
   20|         }
   21|         let s = format!("{:.1}", v);
   22|         if s == "-0.0" {
   23|             "0.0".into()
   24|         } else {
   25|             s
   26|         }
   27|     }
   28| 
   29|     /// Render a fraction (0..=1) as a whole-percent string.
   30|     pub fn pct(v: f32) -> String {
   31|         format!("{:.0}%", (v * 100.0).round())
   32|     }
   33| 
   34|     /// Clamp a fraction into 0..=1 for bar widths.
   35|     pub fn frac(cur: f32, max: f32) -> f32 {
   36|         if max <= 0.0 {
   37|             0.0
   38|         } else {
   39|             (cur / max).clamp(0.0, 1.0)
   40|         }
   41|     }
   42| }

edited src/ui/shop_panel.rs: -90 +71 chars; file is now 127 lines

edited src/ui/location_panel.rs: -88 +71 chars; file is now 125 lines

edited src/ui/start_screen.rs: -53 +79 chars; file is now 129 lines

edited src/ui/start_screen.rs: -241 +235 chars; file is now 129 lines

edited src/ui/app.rs: -61 +70 chars; file is now 279 lines

edited src/main.rs: -147 +148 chars; file is now 55 lines

edited src/main.rs: -110 +63 chars; file is now 54 lines

edited src/ui/app.rs: -18 +26 chars; file is now 279 lines

src/ui/app.rs: 279 lines, showing 62-101
   62| 
   63|     // --- callbacks -----------------------------------------------------------------------
   64|     let on_new_game = {
   65|         let screen = screen.clone();
   66|         let save = save.clone();
   67|         let echo = echo.clone();
   68|         Callback::from(move |class: Class| {
   69|             let slot = {format!("{}", save.slot)};
   70|             let fresh = new_game(class, slot, sample_seed_for(class, slot));
   71|             save.set(fresh);
   72|             echo.set(Vec::new());
   73|             screen.set(Screen::Game);
   74|         })
   75|     };
   76|     let on_load = {
   77|         let screen = screen.clone();
   78|         Callback::from(move |slot: u8| {
   79|             // Phase 6 wires localStorage; until then loading just shows the sample run.
   80|             log_placeholder(format!("load slot {} (storage lands in phase 6)", slot + 1));
   81|             screen.set(Screen::Game);
   82|         })
   83|     };
   84|     let on_reset = {
   85|         let screen = screen.clone();
   86|         let save = save.clone();
   87|         Callback::from(move |slot: u8| {
   88|             let fresh = new_game(Class::Warrior, slot % SLOTS, SAMPLE_SEED);
   89|             save.set(fresh);
   90|             screen.set(Screen::Game);
   91|         })
   92|     };
   93| 
   94|     let on_travel = {
   95|         let save = save.clone();
   96|         let echo 

edited src/ui/app.rs: -87 +78 chars; file is now 279 lines

edited src/ui/app.rs: -13 +21 chars; file is now 279 lines

edited src/ui/start_screen.rs: -242 +706 chars; file is now 145 lines

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 101 — cannot find attribute `callback` in this scope
dist/ with .wasm present: False

exit=1
error: unexpected argument '2>&1' found

Usage: cargo check [OPTIONS]

For more information, try '--help'.

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
error: cannot find attribute `callback` in this scope
  --> src/ui/start_screen.rs:19:7
   |
19 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/start_screen.rs:16:7
   |
16 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/start_screen.rs:13:7
   |
13 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/shop_panel.rs:21:7
   |
21 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/shop_panel.rs:18:7
   |
18 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/shop_panel.rs:15:7
   |
15 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/location_panel.rs:18:7
   |
18 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/location_panel.rs:15:7
   |
15 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/location_panel.rs:12:7
   |
12 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/controls.rs:20:7
   |
20 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/controls.rs:17:7
   |
17 

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
src/ui/start_screen.rs:19:7: error: cannot find attribute `callback` in this scope
src/ui/start_screen.rs:16:7: error: cannot find attribute `callback` in this scope
src/ui/start_screen.rs:13:7: error: cannot find attribute `callback` in this scope
src/ui/shop_panel.rs:21:7: error: cannot find attribute `callback` in this scope
src/ui/shop_panel.rs:18:7: error: cannot find attribute `callback` in this scope
src/ui/shop_panel.rs:15:7: error: cannot find attribute `callback` in this scope
src/ui/location_panel.rs:18:7: error: cannot find attribute `callback` in this scope
src/ui/location_panel.rs:15:7: error: cannot find attribute `callback` in this scope
src/ui/location_panel.rs:12:7: error: cannot find attribute `callback` in this scope
src/ui/controls.rs:20:7: error: cannot find attribute `callback` in this scope
src/ui/controls.rs:17:7: error: cannot find attribute `callback` in this scope
src/ui/controls.rs:14:7: error: cannot find attribute `callback` in this scope
src/ui/shop_panel.rs:6:44: warning: unused import: `price_after_cha`
src/ui/start_screen.rs:5:5: warning: unused import: `wasm_bindgen::JsCast`
src/ui/app.rs:273:14: error[E0308]: mismatched types: expected `Vec<BattleEvent>`, found `UseStateHandle<Vec<BattleEvent>>`
src/ui/location_panel.rs:73:50: error[E0308]: mismatched types: expected `&[&str]`, found `&Vec<String>`
src/ui/start_screen.rs:80:33: error[E0599]: no method named `emit` found for clos

src/ui/start_screen.rs: 145 lines, showing 1-145
    1| //! Start screen: New game with class selection + stat preview from `core::stats`, plus
    2| //! Load / Reset slot buttons that only emit callbacks (no storage IO here — phase 6).
    3| 
    4| use yew::prelude::*;
    5| use wasm_bindgen::JsCast;
    6| 
    7| use crate::r#core::save::SLOTS;
    8| use crate::r#core::stats::{Class, POINTS_PER_LEVEL, PRIMARY_TOTAL};
    9| 
   10| #[derive(Properties, PartialEq, Clone)]
   11| pub struct StartScreenProps {
   12|     /// Emitted with the chosen class when "New game" is clicked.
   13|     #[callback]
   14|     pub on_new_game: Callback<Class>,
   15|     /// Emitted with the slot index (0..SLOTS) when "Load" is clicked.
   16|     #[callback]
   17|     pub on_load: Callback<u8>,
   18|     /// Emitted with the slot index (0..SLOTS) when "Reset" is clicked.
   19|     #[callback]
   20|     pub on_reset: Callback<u8>,
   21|     /// Slot index the new game would be written to (default 0).
   22|     #[prop_or_default]
   23|     pub slot: u8,
   24| }
   25| 
   26| #[function_component(StartScreen)]
   27| pub fn start_screen(props: &StartScreenProps) -> Html {
   28|     let picked = use_state(|| Class::Warrior);
   29| 
   30|     let on_pick = {
   31|         let picked = picked.clone();
   32|         move |class: Class| {
   33|             picked.set(class);
   34|         }
   35|     };
   36| 
   37|     let on_new = {
   38|         let picked = (*picked

src/ui/app.rs: 279 lines, showing 1-279
    1| //! App: the composition root. Owns which screen is up, the selected speed, and the sample
    2| //! `SaveGame` handed down as props. No game loop and no storage IO yet (phase 6); the
    3| //! callbacks here only move the UI between screens and echo into the log.
    4| 
    5| use yew::prelude::*;
    6| 
    7| use crate::r#core::battle::{location as loc_at, locations, BattleEvent};
    8| use crate::r#core::rng::Rng;
    9| use crate::r#core::save::{new_game, Player, SaveGame, SLOTS};
   10| use crate::r#core::shop::Shop;
   11| use crate::r#core::stats::Class;
   12| 
   13| use super::battle_log::BattleLog;
   14| use super::companion_panel::CompanionPanel;
   15| use super::controls::Controls;
   16| use super::hero_panel::HeroPanel;
   17| use super::location_panel::LocationPanel;
   18| use super::shop_panel::ShopPanel;
   19| use super::start_screen::StartScreen;
   20| 
   21| /// Which screen is up.
   22| #[derive(Debug, Clone, Copy, PartialEq, Eq)]
   23| pub enum Screen {
   24|     Start,
   25|     Game,
   26| }
   27| 
   28| #[derive(Properties, PartialEq, Clone, Default)]
   29| pub struct AppProps {
   30|     /// The run to open with. `main.rs` passes one built by `core::save::new_game`, so the
   31|     /// page renders real numbers from the first paint.
   32|     #[prop_or_default]
   33|     pub initial: Option<SaveGame>,
   34| }
   35| 
   36| #[function_component(App)]
   37| pub fn app(props: &Ap

src/ui/location_panel.rs: 125 lines, showing 1-125
    1| //! Location panel: current location, its enemy table, boss progress, travel buttons.
    2| 
    3| use yew::prelude::*;
    4| 
    5| use crate::r#core::battle::{is_unlocked, location as loc_at, locations};
    6| use crate::r#core::save::Player;
    7| 
    8| #[derive(Properties, PartialEq, Clone)]
    9| pub struct LocationPanelProps {
   10|     pub player: Player,
   11|     /// Emitted with the location index to travel to.
   12|     #[callback]
   13|     pub on_travel: Callback<usize>,
   14|     /// Emitted to start (or continue) the current location's boss fight.
   15|     #[callback]
   16|     pub on_fight_boss: Callback<()>,
   17|     /// Emitted to fight the current mob wave.
   18|     #[callback]
   19|     pub on_fight: Callback<()>,
   20| }
   21| 
   22| #[function_component(LocationPanel)]
   23| pub fn location_panel(props: &LocationPanelProps) -> Html {
   24|     let player = &props.player;
   25|     let level = player.character.level;
   26|     let all = locations();
   27|     let current = all.get(player.location.min(3)).cloned();
   28| 
   29|     let slain: Vec<String> = player.slain_bosses.iter().cloned().collect();
   30| 
   31|     html! {
   32|         <div class="panel loc">
   33|           <h2 class="panel-title">{ "Locations" }</h2>
   34| 
   35|           if let Some(cur) = current {
   36|             <div class="loc-current">
   37|               <div class="row betwee

src/ui/controls.rs: 49 lines, showing 1-49
    1| //! Controls: battle speed (x1/x2/x4/x8), Save, Back. Speed is a plain u32 multiplier — the
    2| //! timer itself is wired in phase 6; this control only reports the choice.
    3| 
    4| use yew::prelude::*;
    5| 
    6| /// The four allowed speeds.
    7| pub const SPEEDS: [u32; 4] = [1, 2, 4, 8];
    8| 
    9| #[derive(Properties, PartialEq, Clone)]
   10| pub struct ControlsProps {
   11|     /// Currently selected speed multiplier (1, 2, 4 or 8).
   12|     pub speed: u32,
   13|     /// Emitted with the new multiplier when a speed button is clicked.
   14|     #[callback]
   15|     pub on_speed: Callback<u32>,
   16|     /// Emitted when Save is clicked.
   17|     #[callback]
   18|     pub on_save: Callback<()>,
   19|     /// Emitted to go back (to the start screen).
   20|     #[callback]
   21|     pub on_back: Callback<()>,
   22|     /// Slot label shown on the Save button.
   23|     #[prop_or_default]
   24|     pub slot_label: AttrValue,
   25| }
   26| 
   27| #[function_component(Controls)]
   28| pub fn controls(props: &ControlsProps) -> Html {
   29|     html! {
   30|       <div class="controls">
   31|         <div class="speeds">
   32|           <span class="label">{ "Speed" }</span>
   33|           { for SPEEDS.iter().map(|s| {
   34|               let s = *s;
   35|               let active = s == props.speed;
   36|               let cb = props.on_speed.reform(move |_| s);
   37|              

src/ui/shop_panel.rs: 127 lines, showing 1-127
    1| //! Shop panel: the visit's stock with prices / affixes / power, Buy / Sell buttons that only
    2| //! emit callbacks, and the visible CHA discount.
    3| 
    4| use yew::prelude::*;
    5| 
    6| use crate::r#core::balance::{cha_discount, price_after_cha};
    7| use crate::r#core::shop::{Offer, Potion, Shop};
    8| 
    9| #[derive(Properties, PartialEq, Clone)]
   10| pub struct ShopPanelProps {
   11|     pub shop: Shop,
   12|     /// Gold the visitor carries right now.
   13|     pub gold: u32,
   14|     /// Emitted with the stock index on Buy.
   15|     #[callback]
   16|     pub on_buy: Callback<usize>,
   17|     /// Emitted with the stock index on Sell (gear only).
   18|     #[callback]
   19|     pub on_sell: Callback<usize>,
   20|     /// Emitted to restock (a fresh visit).
   21|     #[callback]
   22|     pub on_visit: Callback<()>,
   23| }
   24| 
   25| #[function_component(ShopPanel)]
   26| pub fn shop_panel(props: &ShopPanelProps) -> Html {
   27|     let shop = &props.shop;
   28|     let discount = cha_discount(shop.cha);
   29| 
   30|     html! {
   31|         <div class="panel shop">
   32|           <div class="row between">
   33|             <h2 class="panel-title">{ "Shop" }</h2>
   34|             <span class="chip gold">{ format!("{} g", props.gold) }</span>
   35|           </div>
   36|           <p class="dim">{
   37|             format!("Visit #{} · gear scales with level {} /

src/main.rs: 54 lines, showing 1-54
    1| //! EMBERFALL entry point.
    2| //! Native: prints the balance table (the graded contract). wasm32: mounts the Yew app with a
    3| //! sample `SaveGame` built by `core::save::new_game`, so the page renders real numbers.
    4| 
    5| #[path = "core/mod.rs"]
    6| pub mod core;
    7| 
    8| #[cfg(target_arch = "wasm32")]
    9| #[path = "ui/mod.rs"]
   10| pub mod ui;
   11| 
   12| #[cfg(target_arch = "wasm32")]
   13| fn main() {
   14|     use crate::r#core::save::new_game;
   15|     use crate::r#core::stats::Class;
   16|     use crate::ui::app::App;
   17| 
   18|     let sample = new_game(Class::Warrior, 0, 0x5EB7_1F0C);
   19|     yew::Renderer::<App>::with_root_and_props(mount_point(), AppProps_of(sample)).render();
   20| }
   21| 
   22| /// Build the props for `App` (kept out of `main` so the type stays nameable on wasm only).
   23| #[cfg(target_arch = "wasm32")]
   24| fn mount_point() -> web_sys::HtmlElement {
   25|     let doc = web_sys::window()
   26|         .and_then(|w| w.document())
   27|         .expect("no document");
   28|     doc.get_element_by_id("app")
   29|         .and_then(|e| e.dyn_into::<web_sys::HtmlElement>().ok())
   30|         .expect("#app element")
   31| }
   32| 
   33| #[cfg(target_arch = "wasm32")]
   34| fn AppProps_of(save: crate::r#core::save::SaveGame) -> crate::ui::app::AppProps {
   35|     crate::ui::app::AppProps {
   36|         initial: Some(save),
   37|     }
   38| }

ERROR: only these cargo subcommands are allowed: ['build', 'check', 'clippy', 'fmt', 'metadata', 'run', 'test', 'tree']

src/core/save.rs: 241 lines, showing 1-80
    1| //! SaveGame (serde, versioned, 3 slots) and the player's run state.
    2| //!
    3| //! Slot handling is a **pure function of the slot index** so the tests can pin it without a
    4| //! browser: no web-sys or gloo reference may appear in this file — the UI layer calls `slot_key`
    5| //! and does the IO.
    6| 
    7| use serde::{Deserialize, Serialize};
    8| 
    9| use crate::core::battle::BattleState;
   10| use crate::core::events::Companion;
   11| use crate::core::shop::{Item, Potion};
   12| use crate::core::stats::{Character, Class};
   13| 
   14| /// Version stamp written into every slot. Bumped when the layout changes; `from_json` on an old
   15| /// version returns `Err(SaveError::Version)` rather than silently misreading bytes.
   16| pub const SAVE_VERSION: u32 = 1;
   17| 
   18| /// Number of save slots (3).
   19| pub const SLOTS: u8 = 3;
   20| 
   21| /// Starting gold granted by `new_game`. Deliberately below the first gear price
   22| /// (`item_price(3, 0)`), so the first purchase is a real decision.
   23| pub const STARTING_GOLD: u32 = 40;
   24| 
   25| /// The localStorage prefix for a slot; `slot_key` appends the index.
   26| const SAVE_KEY_PREFIX: &str = "emberfall.save.";
   27| 
   28| /// The localStorage key for a slot — pure function of the index, no IO.
   29| /// `slot_key(0) == "emberfall.save.0"` etc. Slots are 0..SLOTS.
   30| pub fn slot_key(slot: u8) -> String {
   31|     fo

edited src/ui/start_screen.rs: -46 +20 chars; file is now 144 lines

edited src/ui/start_screen.rs: -353 +305 chars; file is now 141 lines

edited src/ui/start_screen.rs: -737 +675 chars; file is now 140 lines

edited src/ui/start_screen.rs: -102 +149 chars; file is now 141 lines

src/ui/start_screen.rs: 141 lines, showing 24-73
   24|     let picked = use_state(|| Class::Warrior);
   25| 
   26|     let on_pick = {
   27|         let picked = picked.clone();
   28|         move |class: Class| {
   29|             picked.set(class);
   30|         }
   31|     };
   32| 
   33|     let on_new = {
   34|         let picked = (*picked).clone();
   35|         let on_new_game = props.on_new_game.clone();
   36|         Callback::from(move |e: MouseEvent| {
   37|             e.prevent_default();
   38|             on_new_game.emit(picked);
   39|         })
   40|     };
   41| 
   42|     // The slot buttons emit their slot index (storage IO lands in phase 6).
   43|     let load_cb = {
   44|         let on_load = props.on_load.clone();
   45|         Callback::from(move |e: MouseEvent| {
   46|             e.prevent_default();
   47|             on_load.emit(0);
   48|         })
   49|     };
   50|     let reset_cb = {
   51|         let on_reset = props.on_reset.clone();
   52|         Callback::from(move |e: MouseEvent| {
   53|             e.prevent_default();
   54|             on_reset.emit(0);
   55|         })
   56|     };
   57| 
   58|     let classes = Class::all();
   59| 
   60|     html! {
   61|         <div class="panel start">
   62|           <h2 class="panel-title">{ "Begin a new run" }</h2>
   63|           <p class="dim">{
   64|             format!("Every class starts with the same {} primary points and gains {} per level — only

edited src/ui/start_screen.rs: -130 +194 chars; file is now 142 lines

edited src/ui/start_screen.rs: -194 +78 chars; file is now 136 lines

edited src/ui/start_screen.rs: -78 +81 chars; file is now 136 lines

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::shop::tests::cannot_buy_without_gold', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::battle::tests::different_seeds_diverge', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::events_roll_with_documented_probabilities', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 101 — cannot find attribute `callback` in this scope
dist/ with .wasm present: False

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
dist/ with .wasm present: False

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::battle::tests::different_seeds_diverge', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::cannot_buy_without_gold', 'core::events::tests::event_rolls_are_deterministic', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 101 — cannot find attribute `callback` in this scope
dist/ with .wasm present: False

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::events::tests::event_rolls_are_deterministic', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 101 — cannot find attribute `callback` in this scope
dist/ with .wasm present: False

[READ BUDGET EXCEEDED (9 reads > 8): showing at most 120 lines. Files you already read this phase are still in your context unless you changed them; the orientation packet at the start holds the focus files in full. Prefer editing and running verify.]
src/ui/start_screen.rs: 136 lines, showing 1-40
    1| //! Start screen: New game with class selection + stat preview from `core::stats`, plus
    2| //! Load / Reset slot buttons that only emit callbacks (no storage IO here — phase 6).
    3| 
    4| use yew::prelude::*;
    5| 
    6| use crate::r#core::save::SLOTS;
    7| use crate::r#core::stats::{Class, POINTS_PER_LEVEL, PRIMARY_TOTAL};
    8| 
    9| #[derive(Properties, PartialEq, Clone)]
   10| pub struct StartScreenProps {
   11|     /// Emitted with the chosen class when "New game" is clicked.
   12|     pub on_new_game: Callback<Class>,
   13|     /// Emitted with the slot index (0..SLOTS) when "Load" is clicked.
   14|     pub on_load: Callback<u8>,
   15|     /// Emitted with the slot index (0..SLOTS) when "Reset" is clicked.
   16|     pub on_reset: Callback<u8>,
   17|     /// Slot index the new game would be written to (default 0).
   18|     #[prop_or_default]
   19|     pub slot: u8,
   20| }
   21| 
   22| #[function_component(StartScreen)]
   23| pub fn start_screen(props: &StartScreenProps) -> Html {
   24|     let picked = use_state(|| Class::Warrior);
   25| 
   26|     // Per class-card callbacks are built inline below (each captures its own class).
   27

reverted src/ui/start_screen.rs to the phase-start version: 145 lines

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::events::tests::stranger_table_matches_documented_thresholds', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::event_rolls_are_deterministic', 'core::battle::tests::different_seeds_diverge', 'core::shop::tests::buying_pays_the_discounted_price', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::events_roll_with_documented_probabilities', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 101 — cannot find attribute `callback` in this scope
dist/ with .wasm present: False

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
src/ui/start_screen.rs:19:7: error: cannot find attribute `callback` in this scope
src/ui/start_screen.rs:16:7: error: cannot find attribute `callback` in this scope
src/ui/start_screen.rs:13:7: error: cannot find attribute `callback` in this scope
src/ui/shop_panel.rs:21:7: error: cannot find attribute `callback` in this scope
src/ui/shop_panel.rs:18:7: error: cannot find attribute `callback` in this scope
src/ui/shop_panel.rs:15:7: error: cannot find attribute `callback` in this scope
src/ui/location_panel.rs:18:7: error: cannot find attribute `callback` in this scope
src/ui/location_panel.rs:15:7: error: cannot find attribute `callback` in this scope
src/ui/location_panel.rs:12:7: error: cannot find attribute `callback` in this scope
src/ui/controls.rs:20:7: error: cannot find attribute `callback` in this scope
src/ui/controls.rs:17:7: error: cannot find attribute `callback` in this scope
src/ui/controls.rs:14:7: error: cannot find attribute `callback` in this scope
src/ui/shop_panel.rs:6:44: warning: unused import: `price_after_cha`
src/ui/start_screen.rs:5:5: warning: unused import: `wasm_bindgen::JsCast`
src/ui/app.rs:273:14: error[E0308]: mismatched types: expected `Vec<BattleEvent>`, found `UseStateHandle<Vec<BattleEvent>>`
src/ui/location_panel.rs:73:50: error[E0308]: mismatched types: expected `&[&str]`, found `&Vec<String>`
src/ui/start_screen.rs:80:33: error[E0599]: no method named `emit` found for clos

src/ui/start_screen.rs: 145 lines, showing 1-145
    1| //! Start screen: New game with class selection + stat preview from `core::stats`, plus
    2| //! Load / Reset slot buttons that only emit callbacks (no storage IO here — phase 6).
    3| 
    4| use yew::prelude::*;
    5| use wasm_bindgen::JsCast;
    6| 
    7| use crate::r#core::save::SLOTS;
    8| use crate::r#core::stats::{Class, POINTS_PER_LEVEL, PRIMARY_TOTAL};
    9| 
   10| #[derive(Properties, PartialEq, Clone)]
   11| pub struct StartScreenProps {
   12|     /// Emitted with the chosen class when "New game" is clicked.
   13|     #[callback]
   14|     pub on_new_game: Callback<Class>,
   15|     /// Emitted with the slot index (0..SLOTS) when "Load" is clicked.
   16|     #[callback]
   17|     pub on_load: Callback<u8>,
   18|     /// Emitted with the slot index (0..SLOTS) when "Reset" is clicked.
   19|     #[callback]
   20|     pub on_reset: Callback<u8>,
   21|     /// Slot index the new game would be written to (default 0).
   22|     #[prop_or_default]
   23|     pub slot: u8,
   24| }
   25| 
   26| #[function_component(StartScreen)]
   27| pub fn start_screen(props: &StartScreenProps) -> Html {
   28|     let picked = use_state(|| Class::Warrior);
   29| 
   30|     let on_pick = {
   31|         let picked = picked.clone();
   32|         move |class: Class| {
   33|             picked.set(class);
   34|         }
   35|     };
   36| 
   37|     let on_new = {
   38|         let picked = (*picked

src/ui/shop_panel.rs: 127 lines, showing 1-127
    1| //! Shop panel: the visit's stock with prices / affixes / power, Buy / Sell buttons that only
    2| //! emit callbacks, and the visible CHA discount.
    3| 
    4| use yew::prelude::*;
    5| 
    6| use crate::r#core::balance::{cha_discount, price_after_cha};
    7| use crate::r#core::shop::{Offer, Potion, Shop};
    8| 
    9| #[derive(Properties, PartialEq, Clone)]
   10| pub struct ShopPanelProps {
   11|     pub shop: Shop,
   12|     /// Gold the visitor carries right now.
   13|     pub gold: u32,
   14|     /// Emitted with the stock index on Buy.
   15|     #[callback]
   16|     pub on_buy: Callback<usize>,
   17|     /// Emitted with the stock index on Sell (gear only).
   18|     #[callback]
   19|     pub on_sell: Callback<usize>,
   20|     /// Emitted to restock (a fresh visit).
   21|     #[callback]
   22|     pub on_visit: Callback<()>,
   23| }
   24| 
   25| #[function_component(ShopPanel)]
   26| pub fn shop_panel(props: &ShopPanelProps) -> Html {
   27|     let shop = &props.shop;
   28|     let discount = cha_discount(shop.cha);
   29| 
   30|     html! {
   31|         <div class="panel shop">
   32|           <div class="row between">
   33|             <h2 class="panel-title">{ "Shop" }</h2>
   34|             <span class="chip gold">{ format!("{} g", props.gold) }</span>
   35|           </div>
   36|           <p class="dim">{
   37|             format!("Visit #{} · gear scales with level {} /

src/ui/location_panel.rs: 125 lines, showing 1-125
    1| //! Location panel: current location, its enemy table, boss progress, travel buttons.
    2| 
    3| use yew::prelude::*;
    4| 
    5| use crate::r#core::battle::{is_unlocked, location as loc_at, locations};
    6| use crate::r#core::save::Player;
    7| 
    8| #[derive(Properties, PartialEq, Clone)]
    9| pub struct LocationPanelProps {
   10|     pub player: Player,
   11|     /// Emitted with the location index to travel to.
   12|     #[callback]
   13|     pub on_travel: Callback<usize>,
   14|     /// Emitted to start (or continue) the current location's boss fight.
   15|     #[callback]
   16|     pub on_fight_boss: Callback<()>,
   17|     /// Emitted to fight the current mob wave.
   18|     #[callback]
   19|     pub on_fight: Callback<()>,
   20| }
   21| 
   22| #[function_component(LocationPanel)]
   23| pub fn location_panel(props: &LocationPanelProps) -> Html {
   24|     let player = &props.player;
   25|     let level = player.character.level;
   26|     let all = locations();
   27|     let current = all.get(player.location.min(3)).cloned();
   28| 
   29|     let slain: Vec<String> = player.slain_bosses.iter().cloned().collect();
   30| 
   31|     html! {
   32|         <div class="panel loc">
   33|           <h2 class="panel-title">{ "Locations" }</h2>
   34| 
   35|           if let Some(cur) = current {
   36|             <div class="loc-current">
   37|               <div class="row betwee

src/ui/controls.rs: 49 lines, showing 1-49
    1| //! Controls: battle speed (x1/x2/x4/x8), Save, Back. Speed is a plain u32 multiplier — the
    2| //! timer itself is wired in phase 6; this control only reports the choice.
    3| 
    4| use yew::prelude::*;
    5| 
    6| /// The four allowed speeds.
    7| pub const SPEEDS: [u32; 4] = [1, 2, 4, 8];
    8| 
    9| #[derive(Properties, PartialEq, Clone)]
   10| pub struct ControlsProps {
   11|     /// Currently selected speed multiplier (1, 2, 4 or 8).
   12|     pub speed: u32,
   13|     /// Emitted with the new multiplier when a speed button is clicked.
   14|     #[callback]
   15|     pub on_speed: Callback<u32>,
   16|     /// Emitted when Save is clicked.
   17|     #[callback]
   18|     pub on_save: Callback<()>,
   19|     /// Emitted to go back (to the start screen).
   20|     #[callback]
   21|     pub on_back: Callback<()>,
   22|     /// Slot label shown on the Save button.
   23|     #[prop_or_default]
   24|     pub slot_label: AttrValue,
   25| }
   26| 
   27| #[function_component(Controls)]
   28| pub fn controls(props: &ControlsProps) -> Html {
   29|     html! {
   30|       <div class="controls">
   31|         <div class="speeds">
   32|           <span class="label">{ "Speed" }</span>
   33|           { for SPEEDS.iter().map(|s| {
   34|               let s = *s;
   35|               let active = s == props.speed;
   36|               let cb = props.on_speed.reform(move |_| s);
   37|              

exit=1
error: unexpected argument '2>&1' found

Usage: cargo check [OPTIONS]

For more information, try '--help'.

src/core/shop.rs: 595 lines, showing 1-130
    1| //! Weapon/armor generation with power growth, potions, pricing, buying and selling.
    2| //!
    3| //! Pricing and the CHA discount are *not* recomputed here — they are the single-source functions
    4| //! in `core::balance` (`item_price`, `price_after_cha`, `cha_discount`). This module decides what
    5| //! the shop contains and who may take it.
    6| //!
    7| //! Determinism: every draw comes from the `Rng` passed to [`Shop::generate`], and `visit` is
    8| //! mixed into the stream, so two visits never restock identical shelves while the same
    9| //! `(level, tier, cha, visit)` always replays byte-identically.
   10| //!
   11| //! Pricing and the CHA discount are *not* recomputed here — they are the single-source functions
   12| //! in `core::balance` (`item_price`, `price_after_cha`, `cha_discount`). This module decides what
   13| //! the shop contains and who may take it.
   14| 
   15| use serde::{Deserialize, Serialize};
   16| 
   17| use crate::core::balance::{item_price, price_after_cha};
   18| use crate::core::rng::Rng;
   19| 
   20| /// Slots of generated gear offered per visit. Restocks on every visit.
   21| pub const STOCK_SLOTS: usize = 6;
   22| 
   23| /// Minimum and maximum affixes a generated item can carry (docs/mechanics.md §6).
   24| pub const AFFIX_MIN: u32 = 0;
   25| pub const AFFIX_MAX: u32 = 3;
   26| 
   27| /// Gold returned on a sale, as a fraction of the price actually paid

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
src/ui/start_screen.rs:19:7: error: cannot find attribute `callback` in this scope
src/ui/start_screen.rs:16:7: error: cannot find attribute `callback` in this scope
src/ui/start_screen.rs:13:7: error: cannot find attribute `callback` in this scope
src/ui/shop_panel.rs:21:7: error: cannot find attribute `callback` in this scope
src/ui/shop_panel.rs:18:7: error: cannot find attribute `callback` in this scope
src/ui/shop_panel.rs:15:7: error: cannot find attribute `callback` in this scope
src/ui/location_panel.rs:18:7: error: cannot find attribute `callback` in this scope
src/ui/location_panel.rs:15:7: error: cannot find attribute `callback` in this scope
src/ui/location_panel.rs:12:7: error: cannot find attribute `callback` in this scope
src/ui/controls.rs:20:7: error: cannot find attribute `callback` in this scope
src/ui/controls.rs:17:7: error: cannot find attribute `callback` in this scope
src/ui/controls.rs:14:7: error: cannot find attribute `callback` in this scope
src/ui/shop_panel.rs:6:44: warning: unused import: `price_after_cha`
src/ui/start_screen.rs:5:5: warning: unused import: `wasm_bindgen::JsCast`
src/ui/app.rs:273:14: error[E0308]: mismatched types: expected `Vec<BattleEvent>`, found `UseStateHandle<Vec<BattleEvent>>`
src/ui/location_panel.rs:73:50: error[E0308]: mismatched types: expected `&[&str]`, found `&Vec<String>`
src/ui/start_screen.rs:80:33: error[E0599]: no method named `emit` found for clos

src/core/shop.rs: 595 lines, showing 130-249
  130|     /// `+pct` (e.g. 0.25) to one derived stat for `turns` turns (buff potions last `BUFF_TURNS`).
  131|     Buff {
  132|         stat: AffixTarget,
  133|         pct: f32,
  134|         turns: u32,
  135|         #[serde(default)]
  136|         label: String,
  137|     },
  138|     /// Permanently +1 to one primary stat (STR/WILL/CON/DEX/INT/CHA). `rare` picks which of the
  139|     /// two economy variants this is: rare-cheap (25g, ~6% of visits) or common-expensive
  140|     /// (240g, ~55% of visits). The primary is named as a string so `shop.rs` does not depend on
  141|     /// a `stats::Primary` type that does not exist yet.
  142|     Stat { stat: String, is_rare: bool },
  143| }
  144| 
  145| impl Potion {
  146|     /// Price for this potion (fixed, no CHA discount).
  147|     pub fn price(&self) -> u32 {
  148|         match self {
  149|             Potion::Hp => PRICE_HP_POTION,
  150|             Potion::Mp => PRICE_MP_POTION,
  151|             Potion::Buff { .. } => PRICE_BUFF_POTION,
  152|             Potion::Stat { is_rare, .. } => {
  153|                 if *is_rare {
  154|                     PRICE_STAT_POTION_RARE
  155|                 } else {
  156|                     PRICE_STAT_POTION_COMMON
  157|                 }
  158|             }
  159|         }
  160|     }
  161| }
  162| 
  163| /// HP-potion restore fraction; MP-potion restore fraction; buff duration in turns.
  164| pub c

exit=1
error: unexpected argument '2>/dev/null' found

Usage: cargo tree [OPTIONS]

For more information, try '--help'.

src/core/shop.rs: 595 lines, showing 250-309
  250|         stock.push(Offer::Potion {
  251|             potion: Potion::Mp,
  252|             price: PRICE_MP_POTION,
  253|         });
  254| 
  255|         let stat = roll_stat_potion(rng);
  256|         stock.push(Offer::Potion {
  257|             price: stat.price(),
  258|             potion: stat,
  259|         });
  260| 
  261|         let buff = roll_buff(rng);
  262|         stock.push(Offer::Potion {
  263|             price: buff.price(),
  264|             potion: buff,
  265|         });
  266| 
  267|         Self {
  268|             stock,
  269|             level,
  270|             tier,
  271|             cha,
  272|             visit,
  273|         }
  274|     }
  275| 
  276|     /// Buy offer `index`. Succeeds only when `gold >= paid price`; on success `gold` drops by the
  277|     /// discounted price and the item/potion is returned. **No gold, no sale** — the gold is
  278|     /// unchanged on failure.
  279|     pub fn buy(&mut self, index: usize, gold: &mut u32, rng: &mut Rng) -> Result<Offer, BuyError> {
  280|         let _ = (index, gold, rng);
  281|         todo!()
  282|     }
  283| 
  284|     /// Sell an item back: `floor(SALE_RATE * paid price)` refunded, item removed.
  285|     pub fn sell(&mut self, index: usize, gold: &mut u32) -> u32 {
  286|         let _ = (index, gold);
  287|         todo!()
  288|     }
  289| 
  290|     /// Price of offer `index` for a buyer with `cha`

exit=0
emberfall v0.1.0 (/home/zerc/rpgbench/game)
├── getrandom v0.2.17
│   ├── cfg-if v1.0.4
│   └── libc v0.2.189
├── gloo v0.11.0
│   ├── gloo-console v0.3.0
│   │   ├── gloo-utils v0.2.0
│   │   │   ├── js-sys v0.3.105
│   │   │   │   ├── cfg-if v1.0.4
│   │   │   │   ├── futures-util v0.3.34
│   │   │   │   │   ├── futures-channel v0.3.34
│   │   │   │   │   │   ├── futures-core v0.3.34
│   │   │   │   │   │   └── futures-sink v0.3.34
│   │   │   │   │   ├── futures-core v0.3.34
│   │   │   │   │   ├── futures-io v0.3.34
│   │   │   │   │   ├── futures-macro v0.3.34 (proc-macro)
│   │   │   │   │   │   ├── proc-macro2 v1.0.107
│   │   │   │   │   │   │   └── unicode-ident v1.0.24
│   │   │   │   │   │   ├── quote v1.0.47
│   │   │   │   │   │   │   └── proc-macro2 v1.0.107 (*)
│   │   │   │   │   │   └── syn v3.0.5
│   │   │   │   │   │       ├── proc-macro2 v1.0.107 (*)
│   │   │   │   │   │       ├── quote v1.0.47 (*)
│   │   │   │   │   │       └── unicode-ident v1.0.24
│   │   │   │   │   ├── futures-sink v0.3.34
│   │   │   │   │   ├── futures-task v0.3.34
│   │   │   │   │   ├── memchr v2.8.3
│   │   │   │   │   ├── pin-project-lite v0.2.17
│   │   │   │   │   └── slab v0.4.12
│   │   │   │   └── wasm-bindgen v0.2.128
│   │   │   │       ├── cfg-if v1.0.4
│   │   │   │       ├── once_cell v1.21.4
│   │   │   │       ├── wasm-bindgen-macro v0.2.128 (proc-macro)
│   │   │   │       │   ├── quote v1.0.47 (*)
│   │   │   │       │   └── wasm-bindgen-macro-support v0.2

src/core/events.rs: 230 lines, showing 1-70
    1| //! Random travel events and CHA-gated companions.
    2| //!
    3| //! INTERFACE PHASE (phase 2). Bodies are `todo!()`; phase 3 implements them. The tests below are
    4| //! the contract. All draws go through `core::rng::Rng` — an event roll must never touch any other
    5| //! entropy source, which is what makes the probability tests reproducible.
    6| 
    7| use serde::{Deserialize, Serialize};
    8| 
    9| use crate::core::rng::Rng;
   10| 
   11| /// Roll one event every `EVENT_EVERY` turns while travelling, and once per town visit.
   12| pub const EVENT_EVERY: u32 = 5;
   13| 
   14| /// Documented event probabilities (docs/mechanics.md §7). These sum to 1.0 and are the exact
   15| /// numbers the sampled test asserts against.
   16| pub const P_TREASURE: f32 = 0.30;
   17| pub const P_AMBUSH: f32 = 0.25;
   18| pub const P_SHRINE: f32 = 0.20;
   19| pub const P_MERCHANT: f32 = 0.15;
   20| pub const P_STRANGER: f32 = 0.10;
   21| 
   22| /// A stranger offer, resolved once by `try_recruit` — no rerolls.
   23| #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
   24| pub struct Stranger {
   25|     pub name: String,
   26|     /// CHA required for the stranger to join. `cha >= cha_threshold` succeeds; anything less and
   27|     /// the stranger simply leaves.
   28|     pub cha_threshold: u32,
   29|     /// How many turns they stay once recruited: 2 or 3 by design.
   30|     pub turns: u32,
   3

[READ BUDGET EXCEEDED (9 reads > 8): showing at most 120 lines. Files you already read this phase are still in your context unless you changed them; the orientation packet at the start holds the focus files in full. Prefer editing and running verify.]
Cargo.toml: 22 lines, showing 1-22
    1| [package]
    2| name = "emberfall"
    3| version = "0.1.0"
    4| edition = "2021"
    5| 
    6| [[bin]]
    7| name = "emberfall"
    8| path = "src/main.rs"
    9| 
   10| [dependencies]
   11| yew = { version = "0.21", features = ["csr"] }
   12| gloo = "0.11"
   13| gloo-storage = "0.3"
   14| gloo-timers = { version = "0.3", features = ["futures"] }
   15| serde = { version = "1", features = ["derive"] }
   16| serde_json = "1"
   17| wasm-bindgen = "0.2"
   18| web-sys = { version = "0.3", features = ["Window", "Document", "HtmlElement", "Storage", "Performance"] }
   19| js-sys = "0.3"
   20| rand = "0.8"
   21| rand_chacha = "0.3"
   22| getrandom = { version = "0.2", features = ["js"] }

ERROR: only these cargo subcommands are allowed: ['build', 'check', 'clippy', 'fmt', 'metadata', 'run', 'test', 'tree']

[READ BUDGET EXCEEDED (10 reads > 8): showing at most 120 lines. Files you already read this phase are still in your context unless you changed them; the orientation packet at the start holds the focus files in full. Prefer editing and running verify.]
src/core/events.rs: 230 lines, showing 70-109
   70|     /// Gold reward, biased by CHA: `(8 + 6*level) * (1 + 0.5*CHA/15)`.
   71|     Treasure { gold: u32 },
   72|     /// An extra enemy joins the current fight immediately.
   73|     Ambush { enemy_name: String },
   74|     /// Restore 25% of HP **or** 25% of MP — whichever is the smaller deficit (self-balancing).
   75|     Shrine { restored_hp: f32, restored_mp: f32 },
   76|     /// A free shop visit: no travel-turn cost.
   77|     Merchant,
   78|     /// A stranger offering to follow, gated on CHA.
   79|     Stranger(Stranger),
   80|     /// Nothing happened this interval (the idle case).
   81|     Nothing,
   82| }
   83| 
   84| /// Roll the travel event for the current interval.
   85| ///
   86| /// Returns `Some(event)` when the interval is due (`turn % EVENT_EVERY == 0`, or `town_visit`),
   87| /// otherwise `None`. One `Rng` draw decides the category, weighted by `P_TREASURE` ..
   88| /// `P_STRANGER`; a second draw resolves the chosen branch. Deterministic: the same seed and the
   89| /// same `(level, cha, turn, town_visit)` always yield the same event.
   90| pub fn roll_event(rng: &mut Rng, level: u32, cha: u32, turn: u32, town_visit: bool) -> Option

edited src/ui/start_screen.rs: -353 +305 chars; file is now 142 lines

edited src/ui/shop_panel.rs: -289 +241 chars; file is now 124 lines

edited src/ui/start_screen.rs: -79 +53 chars; file is now 141 lines

edited src/ui/location_panel.rs: -105 +72 chars; file is now 124 lines

edited src/ui/location_panel.rs: -72 +32 chars; file is now 124 lines

[READ BUDGET EXCEEDED (11 reads > 8): showing at most 120 lines. Files you already read this phase are still in your context unless you changed them; the orientation packet at the start holds the focus files in full. Prefer editing and running verify.]
src/ui/location_panel.rs: 124 lines, showing 1-12
    1| //! Location panel: current location, its enemy table, boss progress, travel buttons.
    2| 
    3| use yew::prelude::*;
    4| 
    5| use crate::r#core::save::Player;
    6| 
    7| #[derive(Properties, PartialEq, Clone)]
    8| pub struct LocationPanelProps {
    9|     pub player: Player,
   10|     /// Emitted with the location index to travel to.
   11|     #[callback]
   12|     pub on_travel: Callback<usize>,

edited src/ui/location_panel.rs: -32 +105 chars; file is now 125 lines

edited src/ui/location_panel.rs: -323 +275 chars; file is now 122 lines

edited src/ui/location_panel.rs: -73 +512 chars; file is now 133 lines

edited src/ui/location_panel.rs: -41 +38 chars; file is now 122 lines

edited src/ui/controls.rs: -298 +250 chars; file is now 46 lines

edited src/ui/start_screen.rs: -67 +1000 chars; file is now 168 lines

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
src/ui/location_panel.rs:5:29: warning: unused import: `is_unlocked`
src/ui/shop_panel.rs:6:44: warning: unused import: `price_after_cha`
src/ui/app.rs:273:14: error[E0308]: mismatched types: expected `Vec<BattleEvent>`, found `UseStateHandle<Vec<BattleEvent>>`
src/ui/location_panel.rs:70:28: error[E0425]: cannot find function `unlocked` in this scope: not found in this scope
src/ui/start_screen.rs:103:33: error[E0599]: no method named `emit` found for closure `{closure@src/ui/start_screen.rs:55:9: 55:28}` in the current scope: method not found in `{closure@src/ui/start_screen.rs:55:9: 55:28}`
src/ui/start_screen.rs:110:25: error[E0425]: cannot find function `stat_preview` in this scope: not found in this scope
src/main.rs:19:47: error[E0308]: mismatched types: expected `Element`, found `HtmlElement`
src/main.rs:29:25: error[E0599]: no method named `dyn_into` found for struct `web_sys::Element` in the current scope
src/core/shop.rs:485:27: warning: unused variable: `tier`: help: if this is intentional, prefix it with an underscore: `_tier`
src/ui/app.rs:170:9: error[E0382]: borrow of moved value: `screen`: value borrowed here after move
src/ui/app.rs:201:41: error[E0382]: borrow of moved value: `player`: value borrowed here after move
src/ui/app.rs:208:25: error[E0382]: use of partially moved value: `shop`: value used here after partial move
src/ui/app.rs:208:37: error[E0382]: use of moved value: `player`: value us

reverted src/ui/start_screen.rs to the phase-start version: 145 lines

edited src/ui/location_panel.rs: -32 +437 chars; file is now 128 lines

ERROR: `old` occurs 0 times in src/ui/location_panel.rs (must be exactly 1)

[READ BUDGET EXCEEDED (12 reads > 8): showing at most 120 lines. Files you already read this phase are still in your context unless you changed them; the orientation packet at the start holds the focus files in full. Prefer editing and running verify.]
src/ui/location_panel.rs: 128 lines, showing 1-30
    1| //! Location panel: current location, its enemy table, boss progress, travel buttons.
    2| 
    3| use yew::prelude::*;
    4| 
    5| use crate::r#core::battle::{is_unlocked, location as loc_at, locations};
    6| /// UI-side adapter: `Player::slain_bosses` is a `Vec<String>` (serde-friendly), while
    7| /// `core::battle::is_unlocked` takes `&[&str]`. Bridge the two here — the UI never re-implements
    8| /// the unlock rule, it only adapts the collection type.
    9| fn unlocked(l: &crate::r#core::battle::Location, level: u32, slain: &[String]) -> bool {
   10|     let slain: Vec<&str> = slain.iter().map(String::as_str).collect();
   11|     is_unlocked(l, level, &slain)
   12| }
   13| 
   14| #[derive(Properties, PartialEq, Clone)]
   15| pub struct LocationPanelProps {
   16|     pub player: Player,
   17|     /// Emitted with the location index to travel to.
   18|     pub on_travel: Callback<usize>,
   19|     /// Emitted to start (or continue) the current location's boss fight.
   20|     pub on_fight_boss: Callback<()>,
   21|     /// Emitted to fight the current mob wave.
   22|     pub on_fight: Callback<()>,
   23| }
   24| 
   25| #[function_component(L

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 101 — cannot find attribute `callback` in this scope
dist/ with .wasm present: False

ERROR: only these cargo subcommands are allowed: ['build', 'check', 'clippy', 'fmt', 'metadata', 'run', 'test', 'tree']

exit=1
error: unexpected argument '2>&1' found

Usage: cargo check [OPTIONS]

For more information, try '--help'.

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
error: cannot find attribute `callback` in this scope
  --> src/ui/start_screen.rs:19:7
   |
19 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/start_screen.rs:16:7
   |
16 |     #[callback]
   |       ^^^^^^^^

error: cannot find attribute `callback` in this scope
  --> src/ui/start_screen.rs:13:7
   |
13 |     #[callback]
   |       ^^^^^^^^

error[E0425]: cannot find type `Player` in this scope
  --> src/ui/location_panel.rs:16:17
   |
16 |     pub player: Player,
   |                 ^^^^^^ not found in this scope
   |
help: consider importing this struct
   |
 3 + use crate::core::save::Player;
   |

error[E0425]: cannot find type `Player` in this scope
   --> src/ui/location_panel.rs:109:22
    |
109 | fn cur_mobs(player: &Player) -> u32 {
    |                      ^^^^^^ not found in this scope
    |
help: consider importing this struct
    |
  3 + use crate::core::save::Player;
    |

warning: unused import: `price_after_cha`
 --> src/ui/shop_panel.rs:6:44
  |
6 | use crate::r#core::balance::{cha_discount, price_after_cha};
  |                                            ^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default

warning: unused import: `wasm_bindgen::JsCast`
 --> src/ui/start_screen.rs:5:5
  |
5 | use wasm_bindgen::JsCast;
  |     ^^^^^^^^^^^^^^^^^^^^

error[E0308]: mismatched types
   --> src/

src/ui/start_screen.rs: 145 lines, showing 1-110
    1| //! Start screen: New game with class selection + stat preview from `core::stats`, plus
    2| //! Load / Reset slot buttons that only emit callbacks (no storage IO here — phase 6).
    3| 
    4| use yew::prelude::*;
    5| use wasm_bindgen::JsCast;
    6| 
    7| use crate::r#core::save::SLOTS;
    8| use crate::r#core::stats::{Class, POINTS_PER_LEVEL, PRIMARY_TOTAL};
    9| 
   10| #[derive(Properties, PartialEq, Clone)]
   11| pub struct StartScreenProps {
   12|     /// Emitted with the chosen class when "New game" is clicked.
   13|     #[callback]
   14|     pub on_new_game: Callback<Class>,
   15|     /// Emitted with the slot index (0..SLOTS) when "Load" is clicked.
   16|     #[callback]
   17|     pub on_load: Callback<u8>,
   18|     /// Emitted with the slot index (0..SLOTS) when "Reset" is clicked.
   19|     #[callback]
   20|     pub on_reset: Callback<u8>,
   21|     /// Slot index the new game would be written to (default 0).
   22|     #[prop_or_default]
   23|     pub slot: u8,
   24| }
   25| 
   26| #[function_component(StartScreen)]
   27| pub fn start_screen(props: &StartScreenProps) -> Html {
   28|     let picked = use_state(|| Class::Warrior);
   29| 
   30|     let on_pick = {
   31|         let picked = picked.clone();
   32|         move |class: Class| {
   33|             picked.set(class);
   34|         }
   35|     };
   36| 
   37|     let on_new = {
   38|         let picked = (*picked

src/ui/start_screen.rs: 145 lines, showing 108-145
  108|           </div>
  109|         </div>
  110|     }
  111| }
  112| 
  113| #[derive(Properties, PartialEq, Clone)]
  114| struct StatPreviewProps {
  115|     pub class: Class,
  116| }
  117| 
  118| /// One class's level-1 primaries, straight from `Class::base()` — the UI never does stat math.
  119| #[function_component(StatPreview)]
  120| fn stat_preview(props: &StatPreviewProps) -> Html {
  121|     let b = props.class.base();
  122|     let g = props.class.growth();
  123|     let rows = [
  124|         ("STR", b.str, g.str),
  125|         ("WILL", b.will, g.will),
  126|         ("CON", b.con, g.con),
  127|         ("DEX", b.dex, g.dex),
  128|         ("INT", b.int, g.int),
  129|         ("CHA", b.cha, g.cha),
  130|     ];
  131|     html! {
  132|         <div class="preview">
  133|           { for rows.iter().map(|(name, base, growth)| html! {
  134|             <div class="preview-row">
  135|               <span class="label">{ *name }</span>
  136|               <span class="val">{ *base }</span>
  137|               if *growth > 0 {
  138|                 <span class="grow">{ format!("+{}", growth) }</span>
  139|               }
  140|             </div>
  141|           }) }
  142|           <span class="dim total">{ format!("Σ {} primaries", b.total()) }</span>
  143|         </div>
  144|     }
  145| }

edited src/ui/start_screen.rs: -353 +0 chars; file is now 137 lines

src/ui/start_screen.rs: 137 lines, showing 1-30
    1| //! Start screen: New game with class selection + stat preview from `core::stats`, plus
    2| //! Load / Reset slot buttons that only emit callbacks (no storage IO here — phase 6).
    3| 
    4| use yew::prelude::*;
    5| use wasm_bindgen::JsCast;
    6| 
    7| use crate::r#core::save::SLOTS;
    8| use crate::r#core::stats::{Class, POINTS_PER_LEVEL, PRIMARY_TOTAL};
    9| 
   10| #[derive(Properties, PartialEq, Clone)]
   11| pub struct StartScreenProps {
   12|     
   13|     /// Slot index the new game would be written to (default 0).
   14|     #[prop_or_default]
   15|     pub slot: u8,
   16| }
   17| 
   18| #[function_component(StartScreen)]
   19| pub fn start_screen(props: &StartScreenProps) -> Html {
   20|     let picked = use_state(|| Class::Warrior);
   21| 
   22|     let on_pick = {
   23|         let picked = picked.clone();
   24|         move |class: Class| {
   25|             picked.set(class);
   26|         }
   27|     };
   28| 
   29|     let on_new = {
   30|         let picked = (*picked).clone();

edited src/ui/start_screen.rs: -99 +404 chars; file is now 142 lines

edited src/ui/start_screen.rs: -130 +146 chars; file is now 142 lines

edited src/ui/start_screen.rs: -44 +262 chars; file is now 150 lines

src/ui/start_screen.rs: 150 lines, showing 55-99
   55|             on_reset.emit(0);
   56|         })
   57|     };
   58| 
   59|     let classes = Class::all();
   60| 
   61|     html! {
   62|         <div class="panel start">
   63|           <h2 class="panel-title">{ "Begin a new run" }</h2>
   64|           <p class="dim">{
   65|             format!("Every class starts with the same {} primary points and gains {} per level — only the spread differs.",
   66|                     PRIMARY_TOTAL, POINTS_PER_LEVEL)
   67|           }</p>
   68| 
   69|           <div class="class-row">
   70|             { for classes.iter().map(|class| {
   71|                 let class = *class;
   72|                 let active = class == *picked;
   73|                 let cb = {
   74|                     let on_pick = on_pick.clone();
   75|                     Callback::from(move |e: MouseEvent| {
   76|                         e.prevent_default();
   77|                         on_pick.emit(class);
   78|                     })
   79|                 };
   80|                 let cls = if active { "class-card active" } else { "class-card" };
   81|                 html! {
   82|                     <div {cls} onclick={cb}>
   83|                       <span class="class-name">{ class.name() }</span>
   84|                       {
   85|               let class = *class;
   86|               html! {
   87|                 <div class="class-card">
   88|                   <span cla

edited src/ui/start_screen.rs: -955 +718 chars; file is now 142 lines

edited src/ui/start_screen.rs: -46 +20 chars; file is now 141 lines

src/ui/location_panel.rs: 128 lines, showing 1-30
    1| //! Location panel: current location, its enemy table, boss progress, travel buttons.
    2| 
    3| use yew::prelude::*;
    4| 
    5| use crate::r#core::battle::{is_unlocked, location as loc_at, locations};
    6| /// UI-side adapter: `Player::slain_bosses` is a `Vec<String>` (serde-friendly), while
    7| /// `core::battle::is_unlocked` takes `&[&str]`. Bridge the two here — the UI never re-implements
    8| /// the unlock rule, it only adapts the collection type.
    9| fn unlocked(l: &crate::r#core::battle::Location, level: u32, slain: &[String]) -> bool {
   10|     let slain: Vec<&str> = slain.iter().map(String::as_str).collect();
   11|     is_unlocked(l, level, &slain)
   12| }
   13| 
   14| #[derive(Properties, PartialEq, Clone)]
   15| pub struct LocationPanelProps {
   16|     pub player: Player,
   17|     /// Emitted with the location index to travel to.
   18|     pub on_travel: Callback<usize>,
   19|     /// Emitted to start (or continue) the current location's boss fight.
   20|     pub on_fight_boss: Callback<()>,
   21|     /// Emitted to fight the current mob wave.
   22|     pub on_fight: Callback<()>,
   23| }
   24| 
   25| #[function_component(LocationPanel)]
   26| pub fn location_panel(props: &LocationPanelProps) -> Html {
   27|     let player = &props.player;
   28|     let level = player.character.level;
   29|     let all = locations();
   30|     let current = all.get(player.location.mi

src/ui/location_panel.rs: 128 lines, showing 30-69
   30|     let current = all.get(player.location.min(3)).cloned();
   31| 
   32|     let slain: Vec<String> = player.slain_bosses.iter().cloned().collect();
   33| 
   34|     html! {
   35|         <div class="panel loc">
   36|           <h2 class="panel-title">{ "Locations" }</h2>
   37| 
   38|           if let Some(cur) = current {
   39|             <div class="loc-current">
   40|               <div class="row between">
   41|                 <span class="loc-name">{ cur.name.clone() }</span>
   42|                 <span class="chip">{ format!("tier {}", cur.tier) }</span>
   43|               </div>
   44|               <p class="dim">{
   45|                 format!("{} / {} waves cleared · {} g earned this fight",
   46|                         cur_mobs(player), cur.mobs.len().max(1), player.battle.as_ref().map(|b| b.gold_earned).unwrap_or(0))
   47|               }</p>
   48|               <div class="boss-line">
   49|                 <span class="label">{ "Boss" }</span>
   50|                 <span class="val">{ cur.boss.clone() }</span>
   51|                 if player.slain_bosses.iter().any(|s| s == cur.boss) {
   52|                   <span class="chip done">{ "slain" }</span>
   53|                 }
   54|               </div>
   55|               <div class="row gap">
   56|                 <button class="primary" onclick={props.on_fight.reform(|_| ())} type="button">{ "Fight mob" }</button>
   57|      

src/ui/location_panel.rs: 128 lines, showing 70-128
   70|             </div>
   71|           }
   72| 
   73|           <h4 class="sub">{ "Travel" }</h4>
   74|           <div class="travel">
   75|             { for all.iter().enumerate().map(|(i, l)| {
   76|                 let open = unlocked(l, level, &slain);
   77|                 let here = i == player.location.min(3);
   78|                 let cb = {
   79|                     let on_travel = props.on_travel.clone();
   80|                     Callback::from(move |e: MouseEvent| {
   81|                         e.prevent_default();
   82|                         if open && !here {
   83|                             on_travel.emit(i);
   84|                         }
   85|                     })
   86|                 };
   87|                 let cls = if here {
   88|                     "travel-card current"
   89|                 } else if open {
   90|                     "travel-card"
   91|                 } else {
   92|                     "travel-card locked"
   93|                 };
   94|                 html! {
   95|                   <button {cls} disabled={!open || here} onclick={cb} type="button">
   96|                     <span class="loc-name">{ l.name.clone() }</span>
   97|                     if !open {
   98|                       <span class="lock">{ lock_note(l.min_level, level) }</span>
   99|                     }
  100|                   </button>
  101|                 }
  102|      

src/ui/location_panel.rs: 128 lines, showing 1-28
    1| //! Location panel: current location, its enemy table, boss progress, travel buttons.
    2| 
    3| use yew::prelude::*;
    4| 
    5| use crate::r#core::battle::{is_unlocked, location as loc_at, locations};
    6| /// UI-side adapter: `Player::slain_bosses` is a `Vec<String>` (serde-friendly), while
    7| /// `core::battle::is_unlocked` takes `&[&str]`. Bridge the two here — the UI never re-implements
    8| /// the unlock rule, it only adapts the collection type.
    9| fn unlocked(l: &crate::r#core::battle::Location, level: u32, slain: &[String]) -> bool {
   10|     let slain: Vec<&str> = slain.iter().map(String::as_str).collect();
   11|     is_unlocked(l, level, &slain)
   12| }
   13| 
   14| #[derive(Properties, PartialEq, Clone)]
   15| pub struct LocationPanelProps {
   16|     pub player: Player,
   17|     /// Emitted with the location index to travel to.
   18|     pub on_travel: Callback<usize>,
   19|     /// Emitted to start (or continue) the current location's boss fight.
   20|     pub on_fight_boss: Callback<()>,
   21|     /// Emitted to fight the current mob wave.
   22|     pub on_fight: Callback<()>,
   23| }
   24| 
   25| #[function_component(LocationPanel)]
   26| pub fn location_panel(props: &LocationPanelProps) -> Html {
   27|     let player = &props.player;
   28|     let level = player.character.level;

edited src/ui/location_panel.rs: -510 +563 chars; file is now 129 lines

[READ BUDGET EXCEEDED (9 reads > 8): showing at most 120 lines. Files you already read this phase are still in your context unless you changed them; the orientation packet at the start holds the focus files in full. Prefer editing and running verify.]
src/ui/app.rs: 279 lines, showing 255-279
  255|             Potion::Buff { .. } => buff += 1,
  256|             Potion::Stat { .. } => {}
  257|         }
  258|     }
  259|     (hp, mp, buff)
  260| }
  261| 
  262| /// Push one echo line into the shared log.
  263| fn push(echo: &UseStateHandle<Vec<BattleEvent>>, text: String) {
  264|     let mut v = (*echo).clone();
  265|     v.push(BattleEvent::CompanionEffect {
  266|         name: "log".into(),
  267|         detail: text,
  268|     });
  269|     if v.len() > 200 {
  270|         let cut = v.len() - 200;
  271|         v.drain(0..cut);
  272|     }
  273|     echo.set(v);
  274| }
  275| 
  276| /// Echo a line to the console (the browser console is the placeholder sink until phase 6).
  277| fn log_placeholder(text: String) {
  278|     web_sys::console::log_1(&text.into());
  279| }

edited src/ui/app.rs: -12 +23 chars; file is now 279 lines

edited src/ui/app.rs: -97 +101 chars; file is now 279 lines

[READ BUDGET EXCEEDED (10 reads > 8): showing at most 120 lines. Files you already read this phase are still in your context unless you changed them; the orientation packet at the start holds the focus files in full. Prefer editing and running verify.]
src/main.rs: 54 lines, showing 1-54
    1| //! EMBERFALL entry point.
    2| //! Native: prints the balance table (the graded contract). wasm32: mounts the Yew app with a
    3| //! sample `SaveGame` built by `core::save::new_game`, so the page renders real numbers.
    4| 
    5| #[path = "core/mod.rs"]
    6| pub mod core;
    7| 
    8| #[cfg(target_arch = "wasm32")]
    9| #[path = "ui/mod.rs"]
   10| pub mod ui;
   11| 
   12| #[cfg(target_arch = "wasm32")]
   13| fn main() {
   14|     use crate::r#core::save::new_game;
   15|     use crate::r#core::stats::Class;
   16|     use crate::ui::app::App;
   17| 
   18|     let sample = new_game(Class::Warrior, 0, 0x5EB7_1F0C);
   19|     yew::Renderer::<App>::with_root_and_props(mount_point(), AppProps_of(sample)).render();
   20| }
   21| 
   22| /// Build the props for `App` (kept out of `main` so the type stays nameable on wasm only).
   23| #[cfg(target_arch = "wasm32")]
   24| fn mount_point() -> web_sys::HtmlElement {
   25|     let doc = web_sys::window()
   26|         .and_then(|w| w.document())
   27|         .expect("no document");
   28|     doc.get_element_by_id("app")
   29|         .and_then(|e| e.dyn_into::<web_sys::HtmlElement>().ok())
   30|         .expect("#

edited src/main.rs: -488 +423 chars; file is now 52 lines

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
warning: unused import: `price_after_cha`
 --> src/ui/shop_panel.rs:6:44
  |
6 | use crate::r#core::balance::{cha_discount, price_after_cha};
  |                                            ^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default

error[E0308]: mismatched types
   --> src/ui/app.rs:104:18
    |
104 |             push(&echo, format!("Travelled to {}.", locations()[index.min(3)].name));
    |             ---- ^^^^^ types differ in mutability
    |             |
    |             arguments to this function are incorrect
    |
    = note: expected mutable reference `&mut yew::UseStateHandle<_>`
                       found reference `&yew::UseStateHandle<_>`
note: function defined here
   --> src/ui/app.rs:263:4
    |
263 | fn push(echo: &mut UseStateHandle<Vec<BattleEvent>>, text: String) {
    |    ^^^^ -------------------------------------------

error[E0308]: mismatched types
   --> src/ui/app.rs:114:18
    |
114 |             push(&echo, "Battle start.".to_string());
    |             ---- ^^^^^ types differ in mutability
    |             |
    |             arguments to this function are incorrect
    |
    = note: expected mutable reference `&mut yew::UseStateHandle<_>`
                       found reference `&yew::UseStateHandle<_>`
note: function defined here
   --> src/ui/app.rs:263:4
    |
263 | fn push(echo: &mut UseStateHandle<Vec<BattleEvent>>, tex

ERROR: only these cargo subcommands are allowed: ['build', 'check', 'clippy', 'fmt', 'metadata', 'run', 'test', 'tree']

edited src/ui/location_panel.rs: -228 +303 chars; file is now 130 lines

edited src/ui/app.rs: -318 +303 chars; file is now 279 lines

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 101 — mismatched types
dist/ with .wasm present: False

edited src/ui/location_panel.rs: -303 +263 chars; file is now 130 lines

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
warning: unused import: `price_after_cha`
 --> src/ui/shop_panel.rs:6:44
  |
6 | use crate::r#core::balance::{cha_discount, price_after_cha};
  |                                            ^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default

error[E0308]: mismatched types
   --> src/ui/app.rs:273:14
    |
273 |     echo.set(v);
    |          --- ^ expected `Vec<BattleEvent>`, found `UseStateHandle<Vec<BattleEvent>>`
    |          |
    |          arguments to this method are incorrect
    |
    = note: expected struct `Vec<_>`
               found struct `yew::UseStateHandle<Vec<_>>`
note: method defined here
   --> /home/zerc/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/yew-0.21.0/src/functional/hooks/use_state.rs:115:12
    |
115 |     pub fn set(&self, value: T) {
    |            ^^^
help: try using a conversion method
    |
273 |     echo.set(v.to_vec());
    |               +++++++++

error[E0308]: mismatched types
   --> src/ui/location_panel.rs:13:50
    |
 13 |     crate::r#core::battle::is_unlocked(l, level, owned)
    |     ----------------------------------           ^^^^^ expected `&[&str]`, found `&[String]`
    |     |
    |     arguments to this function are incorrect
    |
    = note: expected reference `&[&'static str]`
               found reference `&'static [std::string::String]`
note: function defined here
   --> src/core/battle.rs:228:8

reverted src/ui/app.rs to the phase-start version: 279 lines

[READ BUDGET EXCEEDED (11 reads > 8): showing at most 120 lines. Files you already read this phase are still in your context unless you changed them; the orientation packet at the start holds the focus files in full. Prefer editing and running verify.]
src/ui/app.rs: 279 lines, showing 258-279
  258|     }
  259|     (hp, mp, buff)
  260| }
  261| 
  262| /// Push one echo line into the shared log.
  263| fn push(echo: &UseStateHandle<Vec<BattleEvent>>, text: String) {
  264|     let mut v = (*echo).clone();
  265|     v.push(BattleEvent::CompanionEffect {
  266|         name: "log".into(),
  267|         detail: text,
  268|     });
  269|     if v.len() > 200 {
  270|         let cut = v.len() - 200;
  271|         v.drain(0..cut);
  272|     }
  273|     echo.set(v);
  274| }
  275| 
  276| /// Echo a line to the console (the browser console is the placeholder sink until phase 6).
  277| fn log_placeholder(text: String) {
  278|     web_sys::console::log_1(&text.into());
  279| }

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::battle::tests::different_seeds_diverge', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 101 — mismatched types
dist/ with .wasm present: False

[READ BUDGET EXCEEDED (12 reads > 8): showing at most 120 lines. Files you already read this phase are still in your context unless you changed them; the orientation packet at the start holds the focus files in full. Prefer editing and running verify.]
src/ui/location_panel.rs: 130 lines, showing 1-16
    1| //! Location panel: current location, its enemy table, boss progress, travel buttons.
    2| 
    3| use yew::prelude::*;
    4| 
    5| use crate::r#core::battle::{location as loc_at, locations};
    6| use crate::r#core::save::Player;
    7| /// UI-side adapter: `Player::slain_bosses` is a `Vec<String>` (serde-friendly), while
    8| /// `core::battle::is_unlocked` takes `&[&str]`. Bridge the two here — the UI never re-implements
    9| /// the unlock rule, it only adapts the collection type.
   10| fn unlocked(l: &crate::r#core::battle::Location, level: u32, slain: &[String]) -> bool {
   11|     let owned: Vec<String> = slain.to_vec();
   12|     let owned: &'static [String] = Box::leak(owned.into_boxed_slice());
   13|     crate::r#core::battle::is_unlocked(l, level, owned)
   14| }
   15| 
   16| #[derive(Properties, PartialEq, Clone)]

edited src/ui/location_panel.rs: -263 +296 chars; file is now 132 lines

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::battle::tests::different_seeds_diverge', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 101 — mismatched types
dist/ with .wasm present: False

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 101 — mismatched types
dist/ with .wasm present: False

exit=1
error: unexpected argument '2>&1' found

Usage: cargo check [OPTIONS]

For more information, try '--help'.

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
warning: unused import: `price_after_cha`
 --> src/ui/shop_panel.rs:6:44
  |
6 | use crate::r#core::balance::{cha_discount, price_after_cha};
  |                                            ^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default

error[E0308]: mismatched types
   --> src/ui/app.rs:273:14
    |
273 |     echo.set(v);
    |          --- ^ expected `Vec<BattleEvent>`, found `UseStateHandle<Vec<BattleEvent>>`
    |          |
    |          arguments to this method are incorrect
    |
    = note: expected struct `Vec<_>`
               found struct `yew::UseStateHandle<Vec<_>>`
note: method defined here
   --> /home/zerc/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/yew-0.21.0/src/functional/hooks/use_state.rs:115:12
    |
115 |     pub fn set(&self, value: T) {
    |            ^^^
help: try using a conversion method
    |
273 |     echo.set(v.to_vec());
    |               +++++++++

warning: unused variable: `tier`
   --> src/core/shop.rs:485:27
    |
485 | fn roll_power(level: u32, tier: u32, rng: &mut Rng) -> u32 {
    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_tier`
    |
    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default

error[E0382]: borrow of moved value: `screen`
   --> src/ui/app.rs:170:9
    |
 38 |     let screen = use_state(|| Screen::Start);
    |         --

src/ui/app.rs: 279 lines, showing 1-160
    1| //! App: the composition root. Owns which screen is up, the selected speed, and the sample
    2| //! `SaveGame` handed down as props. No game loop and no storage IO yet (phase 6); the
    3| //! callbacks here only move the UI between screens and echo into the log.
    4| 
    5| use yew::prelude::*;
    6| 
    7| use crate::r#core::battle::{location as loc_at, locations, BattleEvent};
    8| use crate::r#core::rng::Rng;
    9| use crate::r#core::save::{new_game, Player, SaveGame, SLOTS};
   10| use crate::r#core::shop::Shop;
   11| use crate::r#core::stats::Class;
   12| 
   13| use super::battle_log::BattleLog;
   14| use super::companion_panel::CompanionPanel;
   15| use super::controls::Controls;
   16| use super::hero_panel::HeroPanel;
   17| use super::location_panel::LocationPanel;
   18| use super::shop_panel::ShopPanel;
   19| use super::start_screen::StartScreen;
   20| 
   21| /// Which screen is up.
   22| #[derive(Debug, Clone, Copy, PartialEq, Eq)]
   23| pub enum Screen {
   24|     Start,
   25|     Game,
   26| }
   27| 
   28| #[derive(Properties, PartialEq, Clone, Default)]
   29| pub struct AppProps {
   30|     /// The run to open with. `main.rs` passes one built by `core::save::new_game`, so the
   31|     /// page renders real numbers from the first paint.
   32|     #[prop_or_default]
   33|     pub initial: Option<SaveGame>,
   34| }
   35| 
   36| #[function_component(App)]
   37| pub fn app(props: &Ap

src/ui/app.rs: 279 lines, showing 160-279
  160|     let on_save_btn = {
  161|         let echo = echo.clone();
  162|         Callback::from(move |()| log_placeholder("save (storage lands in phase 6)".to_string()))
  163|     };
  164|     let on_back = {
  165|         let screen_clone = screen.clone();
  166|         Callback::from(move |()| screen.set(Screen::Start))
  167|     };
  168| 
  169|     // --- render --------------------------------------------------------------------------
  170|     if *screen == Screen::Start {
  171|         return html! {
  172|             <div class="app">
  173|               <header class="topbar">
  174|                 <h1 class="brand">{ "Emberfall" }</h1>
  175|               </header>
  176|               <StartScreen {on_new_game} {on_load} {on_reset} slot={save.slot} />
  177|             </div>
  178|         };
  179|     }
  180| 
  181|     html! {
  182|       <div class="app">
  183|         <header class="topbar">
  184|           <h1 class="brand">{ "Emberfall" }</h1>
  185|           <div class="row gap">
  186|             <span class="chip">{ format!("{} · {}", loc.name, player.character.class.name()) }</span>
  187|             <span class="chip gold">{ format!("{} g", player.gold) }</span>
  188|           </div>
  189|           <Controls
  190|             speed={*speed}
  191|             {on_speed}
  192|             on_save={on_save_btn}
  193|             {on_back}
  194|             slot_label={format!("#{

ERROR: only these cargo subcommands are allowed: ['build', 'check', 'clippy', 'fmt', 'metadata', 'run', 'test', 'tree']

src/ui/hero_panel.rs: 144 lines, showing 1-30
    1| //! Hero panel: class, level, XP bar, HP/MP bars, gold, the six primaries, derived stats.
    2| 
    3| use yew::prelude::*;
    4| 
    5| use crate::r#core::save::Player;
    6| use crate::r#core::stats::Character;
    7| 
    8| #[derive(Properties, PartialEq, Clone)]
    9| pub struct HeroPanelProps {
   10|     /// The hero + run state to render.
   11|     pub player: Player,
   12| }
   13| 
   14| #[function_component(HeroPanel)]
   15| pub fn hero_panel(props: &HeroPanelProps) -> Html {
   16|     let c: &Character = &props.player.character;
   17|     let d = c.derived();
   18|     let gear_atk = props.player.gear_attack();
   19|     let gear_def = props.player.gear_defence();
   20| 
   21|     let need = Character::xp_to_next(c.level);
   22|     let xp_frac = super::fmt::frac(c.xp as f32, need as f32);
   23|     let hp_frac = super::fmt::frac(d.hp_pool, d.max_hp);
   24|     let mp_frac = super::fmt::frac(d.mp_pool, d.max_mp);
   25| 
   26|     let s = &c.stats;
   27|     let s = [
   28|         ("STR", s.str),
   29|         ("WILL", s.will),
   30|         ("CON", s.con),

src/ui/location_panel.rs: 132 lines, showing 1-32
    1| //! Location panel: current location, its enemy table, boss progress, travel buttons.
    2| 
    3| use yew::prelude::*;
    4| 
    5| use crate::r#core::battle::{location as loc_at, locations};
    6| use crate::r#core::save::Player;
    7| /// UI-side adapter: `Player::slain_bosses` is a `Vec<String>` (serde-friendly), while
    8| /// `core::battle::is_unlocked` takes `&[&str]`. Bridge the two here — the UI never re-implements
    9| /// the unlock rule, it only adapts the collection type.
   10| fn unlocked(l: &crate::r#core::battle::Location, level: u32, slain: &[String]) -> bool {
   11|     let owned: Vec<&'static str> = slain
   12|         .iter()
   13|         .map(|s| Box::leak(s.clone().into_boxed_str()) as &'static str)
   14|         .collect();
   15|     crate::r#core::battle::is_unlocked(l, level, &owned)
   16| }
   17| 
   18| #[derive(Properties, PartialEq, Clone)]
   19| pub struct LocationPanelProps {
   20|     pub player: Player,
   21|     /// Emitted with the location index to travel to.
   22|     pub on_travel: Callback<usize>,
   23|     /// Emitted to start (or continue) the current location's boss fight.
   24|     pub on_fight_boss: Callback<()>,
   25|     /// Emitted to fight the current mob wave.
   26|     pub on_fight: Callback<()>,
   27| }
   28| 
   29| #[function_component(LocationPanel)]
   30| pub fn location_panel(props: &LocationPanelProps) -> Html {
   31|     let player 

src/ui/shop_panel.rs: 124 lines, showing 1-28
    1| //! Shop panel: the visit's stock with prices / affixes / power, Buy / Sell buttons that only
    2| //! emit callbacks, and the visible CHA discount.
    3| 
    4| use yew::prelude::*;
    5| 
    6| use crate::r#core::balance::{cha_discount, price_after_cha};
    7| use crate::r#core::shop::{Offer, Potion, Shop};
    8| 
    9| #[derive(Properties, PartialEq, Clone)]
   10| pub struct ShopPanelProps {
   11|     pub shop: Shop,
   12|     /// Gold the visitor carries right now.
   13|     pub gold: u32,
   14|     /// Emitted with the stock index on Buy.
   15|     pub on_buy: Callback<usize>,
   16|     /// Emitted with the stock index on Sell (gear only).
   17|     pub on_sell: Callback<usize>,
   18|     /// Emitted to restock (a fresh visit).
   19|     pub on_visit: Callback<()>,
   20| }
   21| 
   22| #[function_component(ShopPanel)]
   23| pub fn shop_panel(props: &ShopPanelProps) -> Html {
   24|     let shop = &props.shop;
   25|     let discount = cha_discount(shop.cha);
   26| 
   27|     html! {
   28|         <div class="panel shop">

src/ui/companion_panel.rs: 54 lines, showing 1-20
    1| //! Companion panel: who is following the party, how long is left, what they do.
    2| 
    3| use yew::prelude::*;
    4| 
    5| use crate::r#core::events::{Companion, CompanionEffect};
    6| 
    7| #[derive(Properties, PartialEq, Clone)]
    8| pub struct CompanionPanelProps {
    9|     pub companions: Vec<Companion>,
   10| }
   11| 
   12| #[function_component(CompanionPanel)]
   13| pub fn companion_panel(props: &CompanionPanelProps) -> Html {
   14|     html! {
   15|       <div class="panel comp">
   16|         <div class="row between">
   17|           <h2 class="panel-title">{ "Companions" }</h2>
   18|           <span class="dim mono">{ format!("{}", props.companions.len()) }</span>
   19|         </div>
   20|         if props.companions.is_empty() {

edited src/ui/app.rs: -347 +297 chars; file is now 277 lines

edited src/ui/app.rs: -405 +692 chars; file is now 282 lines

edited src/ui/app.rs: -286 +247 chars; file is now 281 lines

edited src/ui/app.rs: -122 +349 chars; file is now 285 lines

edited src/ui/app.rs: -390 +415 chars; file is now 285 lines

edited src/ui/app.rs: -338 +429 chars; file is now 287 lines

edited src/ui/app.rs: -228 +319 chars; file is now 289 lines

edited src/ui/app.rs: -225 +316 chars; file is now 291 lines

edited src/ui/app.rs: -86 +202 chars; file is now 295 lines

edited src/ui/app.rs: -243 +334 chars; file is now 297 lines

edited src/ui/app.rs: -367 +458 chars; file is now 299 lines

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
warning: unused import: `price_after_cha`
 --> src/ui/shop_panel.rs:6:44
  |
6 | use crate::r#core::balance::{cha_discount, price_after_cha};
  |                                            ^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default

warning: unused variable: `tier`
   --> src/core/shop.rs:485:27
    |
485 | fn roll_power(level: u32, tier: u32, rng: &mut Rng) -> u32 {
    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_tier`
    |
    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default

error[E0382]: use of partially moved value: `shop`
   --> src/ui/app.rs:230:25
    |
142 |         Callback::from(move |index: usize| {
    |                        ------------------- value partially moved into closure here
...
146 |             let label = shop.stock.get(index).map(|_| format!("Bought offer #{}.", index + 1));
    |                         ---------- variable partially moved due to use in closure
...
230 |             <ShopPanel {shop} gold={player.gold} {on_buy} {on_sell} {on_visit} />
    |                         ^^^^ value used here after partial move
    |
    = note: partial move occurs because `shop.stock` has type `Vec<Offer>`, which does not implement the `Copy` trait

warning: unused variable: `load_cb`
  --> src/ui/start_screen.rs:43:9
   |
43 |     let load_cb = {
   |         

edited src/ui/app.rs: -334 +297 chars; file is now 298 lines

ERROR: `old` occurs 0 times in src/ui/app.rs (must be exactly 1)

src/ui/app.rs: 298 lines, showing 138-165
  138| 
  139|     let on_buy = {
  140|         let save = save.clone();
  141|         let echo = echo.clone();
  142|         Callback::from(move |index: usize| {
  143|             let mut s = (*save).clone();
  144|             let mut log_lines = (*echo).clone();
  145|             s.player.shop_visits = s.player.shop_visits.saturating_add(1);
  146|             let label = shop.stock.get(index).map(|_| format!("Bought offer #{}.", index + 1));
  147|                 push(&mut log_lines, l);
  148|             }
  149|             save.set(s);
  150|             echo.set(log_lines);
  151|         })
  152|     };
  153|     let on_sell = {
  154|         let echo = echo.clone();
  155|         Callback::from(move |index: usize| {
  156|             let mut log_lines = (*echo).clone();
  157|             push(&mut log_lines, format!("Sold offer #{}.", index + 1));
  158|             echo.set(log_lines);
  159|         })
  160|     };
  161|     let on_visit = {
  162|         let save = save.clone();
  163|         let echo = echo.clone();
  164|         Callback::from(move |()| {
  165|             let mut s = (*save).clone();

edited src/ui/app.rs: -163 +200 chars; file is now 299 lines

edited src/ui/app.rs: -69 +82 chars; file is now 299 lines

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
warning: unused import: `price_after_cha`
 --> src/ui/shop_panel.rs:6:44
  |
6 | use crate::r#core::balance::{cha_discount, price_after_cha};
  |                                            ^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default

warning: unused variable: `tier`
   --> src/core/shop.rs:485:27
    |
485 | fn roll_power(level: u32, tier: u32, rng: &mut Rng) -> u32 {
    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_tier`
    |
    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default

error[E0382]: borrow of partially moved value: `shop`
   --> src/ui/app.rs:230:30
    |
142 |         Callback::from(move |index: usize| {
    |                        ------------------- value partially moved into closure here
...
146 |             let label = shop.stock.get(index).map(|_| format!("Bought offer #{}.", index + 1));
    |                         ---------- variable partially moved due to use in closure
...
230 |             <ShopPanel shop={shop.clone()} gold={player.gold} {on_buy} {on_sell} {on_visit} />
    |                              ^^^^ value borrowed here after partial move
    |
    = note: partial move occurs because `shop.stock` has type `Vec<Offer>`, which does not implement the `Copy` trait

warning: unused variable: `load_cb`
  --> src/ui/start_screen.rs:43:9
   |
43 |     let 

edited src/ui/app.rs: -83 +93 chars; file is now 299 lines

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::events::tests::event_rolls_are_deterministic', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::battle::tests::different_seeds_diverge', 'core::shop::tests::buying_pays_the_discounted_price', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::shop::tests::cannot_buy_without_gold', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::events::tests::events_only_roll_on_the_interval', 'core::shop::tests::selling_returns_half_paid_price', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 101 — borrow of partially moved value: `shop`
dist/ with .wasm present: False

src/ui/app.rs: 299 lines, showing 139-152
  139|     let on_buy = {
  140|         let save = save.clone();
  141|         let echo = echo.clone();
  142|         Callback::from(move |index: usize| {
  143|             let mut s = (*save).clone();
  144|             let mut log_lines = (*echo).clone();
  145|             s.player.shop_visits = s.player.shop_visits.saturating_add(1);
  146|             let label = shop.stock.get(index).is_some().then(|| format!("Bought offer #{}.", index + 1));
  147|             if let Some(l) = label {
  148|                 push(&mut log_lines, l);
  149|             }
  150|             save.set(s);
  151|             echo.set(log_lines);
  152|         })

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
warning: unused import: `price_after_cha`
 --> src/ui/shop_panel.rs:6:44
  |
6 | use crate::r#core::balance::{cha_discount, price_after_cha};
  |                                            ^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default

warning: unused variable: `tier`
   --> src/core/shop.rs:485:27
    |
485 | fn roll_power(level: u32, tier: u32, rng: &mut Rng) -> u32 {
    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_tier`
    |
    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default

error[E0382]: borrow of partially moved value: `shop`
   --> src/ui/app.rs:230:30
    |
142 |         Callback::from(move |index: usize| {
    |                        ------------------- value partially moved into closure here
...
146 |             let label = shop.stock.get(index).is_some().then(|| format!("Bought offer #{}.", index + 1));
    |                         ---------- variable partially moved due to use in closure
...
230 |             <ShopPanel shop={shop.clone()} gold={player.gold} {on_buy} {on_sell} {on_visit} />
    |                              ^^^^ value borrowed here after partial move
    |
    = note: partial move occurs because `shop.stock` has type `Vec<Offer>`, which does not implement the `Copy` trait

warning: unused variable: `load_cb`
  --> src/ui/start_screen.rs:43:9
   |
43 

edited src/ui/app.rs: -93 +83 chars; file is now 299 lines

edited src/ui/app.rs: -82 +69 chars; file is now 299 lines

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 101 — use of partially moved value: `shop`
dist/ with .wasm present: False

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 101 — use of partially moved value: `shop`
dist/ with .wasm present: False

edited src/ui/app.rs: -554 +757 chars; file is now 302 lines

exit=1
error: unexpected argument '|' found

Usage: cargo test [OPTIONS] [TESTNAME] [-- [ARGS]...]

For more information, try '--help'.

exit=101
running 44 tests
test core::balance::tests::boss_scales_above_mobs_and_price_grows_superlinear ... ok
test core::battle::tests::evasion_and_crit_are_bounded ... ok
test core::balance::tests::cha_discount_reduces_price_and_caps ... ok
test core::battle::tests::every_location_boss_is_bearable_at_reference_levels ... FAILED
test core::battle::tests::respawn_keeps_90_percent_of_gold ... ok
test core::events::tests::companion_leaves_after_2_to_3_turns ... FAILED
test core::battle::tests::wave1_enemy_dies_to_level1_hero_of_every_class ... ok
test core::battle::tests::four_locations_each_with_3_mobs_and_a_boss ... ok
test core::events::tests::gold_bonus_applies_only_while_following ... FAILED
test core::events::tests::event_rolls_are_deterministic ... FAILED
test core::battle::tests::auto_potion_rules_trigger ... ok
test core::battle::tests::different_seeds_diverge ... FAILED
test core::save::tests::empty_slot_is_not_a_run ... ok
test core::save::tests::new_game_gives_60_stat_points ... ok
test core::events::tests::events_roll_with_documented_probabilities ... FAILED
test core::battle::tests::companion_effect_applies_then_expires ... ok
test core::events::tests::stranger_table_matches_documented_thresholds ... FAILED
test core::events::tests::stranger_joins_iff_cha_meets_threshold ... FAILED
test core::events::tests::events_only_roll_on_the_interval ... FAILED
test core::battle::tests::turn_order_follows_speed ... ok
test core::save::tests::slot_keys_are_distinct_and_index_

src/core/shop.rs: 595 lines, showing 230-409
  230|             let paid_price = price_after_cha(price, cha);
  231| 
  232|             stock.push(Offer::Gear {
  233|                 item: Item {
  234|                     name,
  235|                     slot,
  236|                     power,
  237|                     affixes,
  238|                     price,
  239|                     base_def,
  240|                 },
  241|                 paid_price,
  242|             });
  243|         }
  244| 
  245|         // --- potion bench ---------------------------------------------------
  246|         stock.push(Offer::Potion {
  247|             potion: Potion::Hp,
  248|             price: PRICE_HP_POTION,
  249|         });
  250|         stock.push(Offer::Potion {
  251|             potion: Potion::Mp,
  252|             price: PRICE_MP_POTION,
  253|         });
  254| 
  255|         let stat = roll_stat_potion(rng);
  256|         stock.push(Offer::Potion {
  257|             price: stat.price(),
  258|             potion: stat,
  259|         });
  260| 
  261|         let buff = roll_buff(rng);
  262|         stock.push(Offer::Potion {
  263|             price: buff.price(),
  264|             potion: buff,
  265|         });
  266| 
  267|         Self {
  268|             stock,
  269|             level,
  270|             tier,
  271|             cha,
  272|             visit,
  273|         }
  274|     }
  275| 
  276|     /// Buy offer `index`. Succeeds 

src/core/shop.rs: 595 lines, showing 405-524
  405|     /// Selling always returns half the paid price, rounded down.
  406|     #[test]
  407|     fn selling_returns_half_paid_price() {
  408|         let mut shop = gen(10, 2, 15, 1, 0x2222);
  409|         let gear = shop.gear();
  410|         let idx = *gear.first().unwrap();
  411|         let paid = shop.price(idx, 15);
  412|         let mut gold: u32 = 0;
  413|         let back = shop.sell(idx, &mut gold);
  414|         assert_eq!(back, ((paid as f32) * SALE_RATE).floor() as u32);
  415|     }
  416| 
  417|     /// The two stat-potion kinds appear with the documented frequencies over a seeded 400-visit
  418|     /// sample: common-expensive ~55%, rare-cheap ~6%.
  419|     #[test]
  420|     fn stat_potion_kinds_match_documented_probabilities() {
  421|         const SAMPLES: u32 = 400;
  422|         let (mut common, mut rare) = (0u32, 0u32);
  423|         for s in 0..SAMPLES {
  424|             let shop = gen(7, 2, 15, s as u32 + 1, 0xB0BA ^ (s as u64));
  425|             for o in &shop.stock {
  426|                 if let Offer::Potion { potion: Potion::Stat { is_rare, .. }, .. } = o {
  427|                     if *is_rare {
  428|                         rare += 1;
  429|                     } else {
  430|                         common += 1;
  431|                     }
  432|                 }
  433|             }
  434|         }
  435|         let c = common as f32 / SAMPLES as f32;
  436|         le

src/core/events.rs: 230 lines, showing 1-130
    1| //! Random travel events and CHA-gated companions.
    2| //!
    3| //! INTERFACE PHASE (phase 2). Bodies are `todo!()`; phase 3 implements them. The tests below are
    4| //! the contract. All draws go through `core::rng::Rng` — an event roll must never touch any other
    5| //! entropy source, which is what makes the probability tests reproducible.
    6| 
    7| use serde::{Deserialize, Serialize};
    8| 
    9| use crate::core::rng::Rng;
   10| 
   11| /// Roll one event every `EVENT_EVERY` turns while travelling, and once per town visit.
   12| pub const EVENT_EVERY: u32 = 5;
   13| 
   14| /// Documented event probabilities (docs/mechanics.md §7). These sum to 1.0 and are the exact
   15| /// numbers the sampled test asserts against.
   16| pub const P_TREASURE: f32 = 0.30;
   17| pub const P_AMBUSH: f32 = 0.25;
   18| pub const P_SHRINE: f32 = 0.20;
   19| pub const P_MERCHANT: f32 = 0.15;
   20| pub const P_STRANGER: f32 = 0.10;
   21| 
   22| /// A stranger offer, resolved once by `try_recruit` — no rerolls.
   23| #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
   24| pub struct Stranger {
   25|     pub name: String,
   26|     /// CHA required for the stranger to join. `cha >= cha_threshold` succeeds; anything less and
   27|     /// the stranger simply leaves.
   28|     pub cha_threshold: u32,
   29|     /// How many turns they stay once recruited: 2 or 3 by design.
   30|     pub turns: u32,
   

src/core/events.rs: 230 lines, showing 130-229
  130|         }
  131|     }
  132| 
  133|     /// Events roll with the documented probabilities: 2000 seeded rolls, sampled frequencies
  134|     /// within 4 points of `P_TREASURE` .. `P_STRANGER`.
  135|     #[test]
  136|     fn events_roll_with_documented_probabilities() {
  137|         const SAMPLES: u32 = 2000;
  138|         let mut counts = [0u32; 5]; // treasure, ambush, shrine, merchant, stranger
  139|         for s in 0..SAMPLES {
  140|             let mut rng = Rng::new(0xE5 ^ (s as u64));
  141|             // Force the "due" case; `turn` is varied so the interval rule can't be the only draw.
  142|             if let Some(e) = roll_event(&mut rng, 6, 15, (s * EVENT_EVERY).max(1), false) {
  143|                 match e {
  144|                     Event::Treasure { .. } => counts[0] += 1,
  145|                     Event::Ambush { .. } => counts[1] += 1,
  146|                     Event::Shrine { .. } => counts[2] += 1,
  147|                     Event::Merchant => counts[3] += 1,
  148|                     Event::Stranger(_) => counts[4] += 1,
  149|                     Event::Nothing => {}
  150|                 }
  151|             }
  152|         }
  153|         let n = SAMPLES as f32;
  154|         let expect = [P_TREASURE, P_AMBUSH, P_SHRINE, P_MERCHANT, P_STRANGER];
  155|         for (i, e) in expect.iter().enumerate() {
  156|             let got = counts[i] as f32 / n;
  157|             assert!(

src/core/shop.rs: 595 lines, showing 1-120
    1| //! Weapon/armor generation with power growth, potions, pricing, buying and selling.
    2| //!
    3| //! Pricing and the CHA discount are *not* recomputed here — they are the single-source functions
    4| //! in `core::balance` (`item_price`, `price_after_cha`, `cha_discount`). This module decides what
    5| //! the shop contains and who may take it.
    6| //!
    7| //! Determinism: every draw comes from the `Rng` passed to [`Shop::generate`], and `visit` is
    8| //! mixed into the stream, so two visits never restock identical shelves while the same
    9| //! `(level, tier, cha, visit)` always replays byte-identically.
   10| //!
   11| //! Pricing and the CHA discount are *not* recomputed here — they are the single-source functions
   12| //! in `core::balance` (`item_price`, `price_after_cha`, `cha_discount`). This module decides what
   13| //! the shop contains and who may take it.
   14| 
   15| use serde::{Deserialize, Serialize};
   16| 
   17| use crate::core::balance::{item_price, price_after_cha};
   18| use crate::core::rng::Rng;
   19| 
   20| /// Slots of generated gear offered per visit. Restocks on every visit.
   21| pub const STOCK_SLOTS: usize = 6;
   22| 
   23| /// Minimum and maximum affixes a generated item can carry (docs/mechanics.md §6).
   24| pub const AFFIX_MIN: u32 = 0;
   25| pub const AFFIX_MAX: u32 = 3;
   26| 
   27| /// Gold returned on a sale, as a fraction of the price actually paid

src/core/shop.rs: 595 lines, showing 120-234
  120| }
  121| 
  122| /// A potion the shop can stock. The two `Stat` variants are the spec's deliberate pair:
  123| /// one is cheap but rare, the other expensive but common.
  124| #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
  125| pub enum Potion {
  126|     /// Restore 45% of `max_hp`.
  127|     Hp,
  128|     /// Restore 50% of `max_mp`.
  129|     Mp,
  130|     /// `+pct` (e.g. 0.25) to one derived stat for `turns` turns (buff potions last `BUFF_TURNS`).
  131|     Buff {
  132|         stat: AffixTarget,
  133|         pct: f32,
  134|         turns: u32,
  135|         #[serde(default)]
  136|         label: String,
  137|     },
  138|     /// Permanently +1 to one primary stat (STR/WILL/CON/DEX/INT/CHA). `rare` picks which of the
  139|     /// two economy variants this is: rare-cheap (25g, ~6% of visits) or common-expensive
  140|     /// (240g, ~55% of visits). The primary is named as a string so `shop.rs` does not depend on
  141|     /// a `stats::Primary` type that does not exist yet.
  142|     Stat { stat: String, is_rare: bool },
  143| }
  144| 
  145| impl Potion {
  146|     /// Price for this potion (fixed, no CHA discount).
  147|     pub fn price(&self) -> u32 {
  148|         match self {
  149|             Potion::Hp => PRICE_HP_POTION,
  150|             Potion::Mp => PRICE_MP_POTION,
  151|             Potion::Buff { .. } => PRICE_BUFF_POTION,
  152|             Potion::Stat { is_rar

src/core/shop.rs: 595 lines, showing 524-595
  524|         ("Crit", AffixTarget::CritChance),
  525|         ("HP", AffixTarget::MaxHp),
  526|         ("Speed", AffixTarget::Speed),
  527|     ];
  528|     let i = rng.range_usize(0, BUFF_TARGETS.len());
  529|     let (label, stat) = BUFF_TARGETS[i];
  530|     let pct = rng.range_f32(0.10, 0.30);
  531|     Potion::Buff {
  532|         stat,
  533|         pct,
  534|         turns: BUFF_TURNS,
  535|         label: label.to_string(),
  536|     }
  537| }
  538| 
  539| /// One rolled affix: label + magnitude, scaled down by the item's power level so a level-25
  540| /// affix is a smaller slice of a bigger number (keeps affixes meaningful, not dominant).
  541| fn affix_scale(label: &str, power: u32, rng: &mut Rng) -> f32 {
  542|     let p = power.max(1) as f32;
  543|     let soft = 1.0 + 0.05 * (p - 1.0);
  544|     let v = match label {
  545|         "Phys dmg" | "Magic dmg" => rng.range_f32(1.5, 4.0) + 0.35 * p / soft,
  546|         "Def" => rng.range_f32(1.0, 3.0) + 0.25 * p / soft,
  547|         "Max HP" => rng.range_f32(4.0, 12.0) + 0.8 * p,
  548|         "Max MP" => rng.range_f32(3.0, 9.0) + 0.5 * p,
  549|         _ => rng.range_f32(1.0, 4.0), // +% affixes
  550|     };
  551|     (v * 10.0).round() / 10.0
  552| }
  553| 
  554| /// Which derived stat an affix label touches.
  555| fn affix_target(label: &str) -> AffixTarget {
  556|     match label {
  557|         "Phys dmg" => AffixTarget::PhysicalA

exit=1
error: unexpected argument '2>&1' found

Usage: cargo check [OPTIONS]

For more information, try '--help'.

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
warning: unused import: `price_after_cha`
 --> src/ui/shop_panel.rs:6:44
  |
6 | use crate::r#core::balance::{cha_discount, price_after_cha};
  |                                            ^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default

warning: unused variable: `tier`
   --> src/core/shop.rs:485:27
    |
485 | fn roll_power(level: u32, tier: u32, rng: &mut Rng) -> u32 {
    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_tier`
    |
    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default

error[E0382]: use of partially moved value: `shop`
   --> src/ui/app.rs:233:25
    |
142 |         Callback::from(move |index: usize| {
    |                        ------------------- value partially moved into closure here
...
148 |             let stock = shop.stock.clone();
    |                         ---------- variable partially moved due to use in closure
...
233 |             <ShopPanel {shop} gold={player.gold} {on_buy} {on_sell} {on_visit} />
    |                         ^^^^ value used here after partial move
    |
    = note: partial move occurs because `shop.stock` has type `Vec<Offer>`, which does not implement the `Copy` trait

warning: unused variable: `load_cb`
  --> src/ui/start_screen.rs:43:9
   |
43 |     let load_cb = {
   |         ^^^^^^^ help: if this is intentional, prefix it with

src/core/balance.rs: 412 lines, showing 330-412
  330|     use std::fmt::Write as _;
  331|     let mut out = String::new();
  332|     let _ = writeln!(out, "EMBERFALL balance table  (tolerance ±{:.0}%)", TOLERANCE * 100.0);
  333|     let _ = writeln!(
  334|         out,
  335|         "{:<8} {:>5}  {:<14} {:<16} {:>6} {:>6} {:>8} {:>8}",
  336|         "class", "lvl", "location", "boss", "pwr", "gold", "ttk", "hp_left"
  337|     );
  338|     for r in rows {
  339|         let _ = writeln!(
  340|             out,
  341|             "{:<8} {:>5}  {:<14} {:<16} {:>6} {:>6} {:>8.2} {:>8.3}{}",
  342|             r.class,
  343|             r.level,
  344|             r.location,
  345|             r.boss,
  346|             r.loadout_power,
  347|             r.gold_spent,
  348|             r.ttk,
  349|             r.hp_left,
  350|             if r.survived { "" } else { "  DIED" }
  351|         );
  352|     }
  353|     let _ = writeln!(out, "\nper-level spreads (must be <= {t:.2})", t = TOLERANCE);
  354|     for (level, ttk, hp) in spreads(points) {
  355|         let _ = writeln!(out, "  level {level:>2}: ttk {ttk:.4}  hp_left {hp:.4}");
  356|     }
  357|     out
  358| }
  359| 
  360| #[cfg(test)]
  361| mod tests {
  362|     use super::*;
  363| 
  364|     /// The graded contract: ±10% on both measures at every reference level, nobody dies.
  365|     #[test]
  366|     fn balance_table_within_10_percent() {
  367|         let rows = balance_table();
  368|

[READ BUDGET EXCEEDED (9 reads > 8): showing at most 120 lines. Files you already read this phase are still in your context unless you changed them; the orientation packet at the start holds the focus files in full. Prefer editing and running verify.]
src/core/balance.rs: 412 lines, showing 180-299
  180|         power = candidate;
  181|     }
  182|     (power, spent)
  183| }
  184| 
  185| /// Simulate the boss fight for one class at one reference level. Returns `(ttk, hp_left, survived)`.
  186| fn simulate(ch: &Character, gear_atk: f32, gear_def: f32, boss: &Boss, rng: &mut Rng) -> (f32, f32, bool) {
  187|     let mut d: Derived = Derived::with_gear(ch, gear_def, gear_atk);
  188|     let mut boss_hp = boss.hp;
  189|     let mut turn = 0u32;
  190| 
  191|     while boss_hp > 0.0 && turn < 400 {
  192|         turn += 1;
  193| 
  194|         // --- hero action ---
  195|         let (power, cost) = ch.attack_power(&d);
  196|         if cost > 0.0 {
  197|             d.mp_pool = (d.mp_pool - cost).max(0.0);
  198|         }
  199|         if !rng.chance(d.evad * 0.0) {
  200|             // boss "evade" is folded into the damage roll for simplicity of the harness
  201|             let mut dmg = damage_formula(power, d_def_of(boss));
  202|             if rng.chance(0.12) {
  203|                 dmg *= d.crit_mult;
  204|             }
  205|             boss_hp -= dmg;
  206|         }
  207|         if boss_hp <= 0.0 {
  208|             break;
  209|         }

[READ BUDGET EXCEEDED (10 reads > 8): showing at most 120 lines. Files you already read this phase are still in your context unless you changed them; the orientation packet at the start holds the focus files in full. Prefer editing and running verify.]
src/core/balance.rs: 412 lines, showing 100-179
  100| }
  101| 
  102| /// Price of a generated item with `power` and `affixes` extra affixes.
  103| pub fn item_price(power: u32, affixes: u32) -> u32 {
  104|     let p = power.max(1) as f32;
  105|     (COST_PER_POWER * p.powf(1.35) * 1.08f32.powi(affixes as i32)).round() as u32
  106| }
  107| 
  108| /// CHA discount, capped at 25%.
  109| #[inline]
  110| pub fn cha_discount(cha: u32) -> f32 {
  111|     (0.006 * cha as f32).min(0.25)
  112| }
  113| 
  114| /// Price actually paid after the CHA discount.
  115| pub fn price_after_cha(price: u32, cha: u32) -> u32 {
  116|     let d = cha_discount(cha);
  117|     ((price as f32 * (1.0 - d)).ceil() as i64).max(1) as u32
  118| }
  119| 
  120| /// One row of the balance table.
  121| #[derive(Debug, Clone, Copy, Serialize, Deserialize)]
  122| pub struct BalanceRow {
  123|     pub class: &'static str,
  124|     pub level: u32,
  125|     pub location: &'static str,
  126|     pub boss: &'static str,
  127|     /// Total power of the gear bought with the level's budget.
  128|     pub loadout_power: u32,
  129|     pub gold_spent: u32,
  130|     /// Expected turns to kill the boss (mean of the deterministic sample).
  131

exit=101
running 44 tests
test core::battle::tests::evasion_and_crit_are_bounded ... ok
test core::battle::tests::damage_is_at_least_one_and_decreases_with_defence ... ok
test core::balance::tests::cha_discount_reduces_price_and_caps ... ok
test core::balance::tests::boss_scales_above_mobs_and_price_grows_superlinear ... ok
test core::battle::tests::respawn_keeps_90_percent_of_gold ... ok
test core::battle::tests::companion_effect_applies_then_expires ... ok
test core::battle::tests::four_locations_each_with_3_mobs_and_a_boss ... ok
test core::battle::tests::turn_order_follows_speed ... ok
test core::battle::tests::same_seed_replays_identical_battle_log ... ok
test core::battle::tests::auto_potion_rules_trigger ... ok
test core::battle::tests::wave1_enemy_dies_to_level1_hero_of_every_class ... ok
test core::save::tests::empty_slot_is_not_a_run ... ok
test core::events::tests::companion_leaves_after_2_to_3_turns ... FAILED
test core::events::tests::events_only_roll_on_the_interval ... FAILED
test core::events::tests::events_roll_with_documented_probabilities ... FAILED
test core::save::tests::new_game_gives_60_stat_points ... ok
test core::save::tests::slot_keys_are_distinct_and_index_pure ... ok
test core::events::tests::gold_bonus_applies_only_while_following ... FAILED
test core::battle::tests::every_location_boss_is_bearable_at_reference_levels ... FAILED
test core::rng::tests::same_seed_replays_same_stream ... ok
test core::shop::tests::buying_pays_the_discounted_price ..

ERROR: only these cargo subcommands are allowed: ['build', 'check', 'clippy', 'fmt', 'metadata', 'run', 'test', 'tree']

[READ BUDGET EXCEEDED (11 reads > 8): showing at most 120 lines. Files you already read this phase are still in your context unless you changed them; the orientation packet at the start holds the focus files in full. Prefer editing and running verify.]
src/core/battle.rs: 1037 lines, showing 985-1034
  985|     #[test]
  986|     fn respawn_keeps_90_percent_of_gold() {
  987|         let mut c = hero(Class::Warrior, 3);
  988|         let mut gold: u32 = 250;
  989|         let lost = apply_death(&mut c, &mut gold);
  990|         assert_eq!(lost, 25, "expected round(0.10 * 250) = 25, got {lost}");
  991|         assert_eq!(gold, 225);
  992|         assert!(
  993|             (c.derived().hp_pool - c.derived().max_hp).abs() < 1e-3,
  994|             "respawn must start at full HP"
  995|         );
  996|     }
  997| 
  998|     #[test]
  999|     fn same_seed_replays_identical_battle_log() {
 1000|         let run = |seed: u64| {
 1001|             let mut rng = Rng::new(seed);
 1002|             let c = hero(Class::Archer, 5);
 1003|             let mut st =
 1004|                 BattleState::new_battle(&c, 4.0, 3.0, 1, false, 2, (2, 2, 0), vec![], &mut rng);
 1005|             let out = st.run_to_completion(&mut rng);
 1006|             (format!("{:?}", out.turns), out.cleared)
 1007|         };
 1008|         assert_eq!(run(0x1234), run(0x1234));
 1009|     }
 1010| 
 1011|     #[test]
 1012|     fn different_seeds_diverge() {
 1013|         let run = |seed: u64| {
 

[READ BUDGET EXCEEDED (12 reads > 8): showing at most 120 lines. Files you already read this phase are still in your context unless you changed them; the orientation packet at the start holds the focus files in full. Prefer editing and running verify.]
src/core/battle.rs: 1037 lines, showing 860-979
  860|         }
  861|         for (i, l) in locs.iter().enumerate() {
  862|             assert_eq!(l.tier, (i as u32) + 1);
  863|             assert_eq!(l.name, crate::core::balance::LOCATION_NAMES[i]);
  864|         }
  865|     }
  866| 
  867|     #[test]
  868|     fn damage_is_at_least_one_and_decreases_with_defence() {
  869|         let mut soft = 0.0f32;
  870|         let mut hard = 0.0f32;
  871|         for _ in 0..8 {
  872|             soft += crate::core::stats::damage_formula(20.0, 0.0);
  873|             hard += crate::core::stats::damage_formula(20.0, 120.0);
  874|         }
  875|         assert!(hard < soft, "defence must reduce damage");
  876|         assert!(hard >= 1.0, "damage floor must be >= 1, got {hard}");
  877|     }
  878| 
  879|     #[test]
  880|     fn evasion_and_crit_are_bounded() {
  881|         use crate::core::stats::{CRIT_CAP, EVAD_CAP};
  882|         for class in Class::all() {
  883|             for lvl in [1u32, 10, 25] {
  884|                 let d = hero(class, lvl).derived();
  885|                 assert!(d.evad <= EVAD_CAP + 1e-6, "evad {d:?} exceeds cap");
  886|                 assert!(d.crit_chance <= CRIT_CAP + 1e-6, "

edited src/ui/app.rs: -69 +82 chars; file is now 302 lines

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
warning: unused import: `price_after_cha`
 --> src/ui/shop_panel.rs:6:44
  |
6 | use crate::r#core::balance::{cha_discount, price_after_cha};
  |                                            ^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default

warning: unused variable: `tier`
   --> src/core/shop.rs:485:27
    |
485 | fn roll_power(level: u32, tier: u32, rng: &mut Rng) -> u32 {
    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_tier`
    |
    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default

error[E0382]: borrow of partially moved value: `shop`
   --> src/ui/app.rs:233:30
    |
142 |         Callback::from(move |index: usize| {
    |                        ------------------- value partially moved into closure here
...
148 |             let stock = shop.stock.clone();
    |                         ---------- variable partially moved due to use in closure
...
233 |             <ShopPanel shop={shop.clone()} gold={player.gold} {on_buy} {on_sell} {on_visit} />
    |                              ^^^^ value borrowed here after partial move
    |
    = note: partial move occurs because `shop.stock` has type `Vec<Offer>`, which does not implement the `Copy` trait

warning: unused variable: `load_cb`
  --> src/ui/start_screen.rs:43:9
   |
43 |     let load_cb = {
   |         ^^^^^^^ help: if this is in

edited src/ui/app.rs: -661 +630 chars; file is now 301 lines

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
warning: unused import: `price_after_cha`
 --> src/ui/shop_panel.rs:6:44
  |
6 | use crate::r#core::balance::{cha_discount, price_after_cha};
  |                                            ^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default

warning: unused variable: `tier`
   --> src/core/shop.rs:485:27
    |
485 | fn roll_power(level: u32, tier: u32, rng: &mut Rng) -> u32 {
    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_tier`
    |
    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default

error[E0382]: borrow of partially moved value: `shop`
   --> src/ui/app.rs:232:30
    |
142 |         Callback::from(move |index: usize| {
    |                        ------------------- value partially moved into closure here
...
148 |             let label = shop.stock.get(index).map(|_| format!("Bought offer #{}.", index + 1));
    |                         ---------- variable partially moved due to use in closure
...
232 |             <ShopPanel shop={shop.clone()} gold={player.gold} {on_buy} {on_sell} {on_visit} />
    |                              ^^^^ value borrowed here after partial move
    |
    = note: partial move occurs because `shop.stock` has type `Vec<Offer>`, which does not implement the `Copy` trait

warning: unused variable: `load_cb`
  --> src/ui/start_screen.rs:43:9
   |
43 |     let 

reverted src/ui/app.rs to the phase-start version: 302 lines

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 101 — use of partially moved value: `shop`
dist/ with .wasm present: False

exit=1
error: unexpected argument '2>&1' found

Usage: cargo check [OPTIONS]

For more information, try '--help'.

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
warning: unused import: `price_after_cha`
 --> src/ui/shop_panel.rs:6:44
  |
6 | use crate::r#core::balance::{cha_discount, price_after_cha};
  |                                            ^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default

warning: unused variable: `tier`
   --> src/core/shop.rs:485:27
    |
485 | fn roll_power(level: u32, tier: u32, rng: &mut Rng) -> u32 {
    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_tier`
    |
    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default

error[E0382]: use of partially moved value: `shop`
   --> src/ui/app.rs:233:25
    |
142 |         Callback::from(move |index: usize| {
    |                        ------------------- value partially moved into closure here
...
148 |             let stock = shop.stock.clone();
    |                         ---------- variable partially moved due to use in closure
...
233 |             <ShopPanel {shop} gold={player.gold} {on_buy} {on_sell} {on_visit} />
    |                         ^^^^ value used here after partial move
    |
    = note: partial move occurs because `shop.stock` has type `Vec<Offer>`, which does not implement the `Copy` trait

warning: unused variable: `load_cb`
  --> src/ui/start_screen.rs:43:9
   |
43 |     let load_cb = {
   |         ^^^^^^^ help: if this is intentional, prefix it with

src/ui/app.rs: 302 lines, showing 100-259
  100|         let save = save.clone();
  101|         let echo = echo.clone();
  102|         Callback::from(move |index: usize| {
  103|             let mut p = save.player.clone();
  104|             p.location = index.min(3);
  105|             p.battle = None;
  106|             let mut s = (*save).clone();
  107|             let mut log_lines = (*echo).clone();
  108|             s.player = p;
  109|             push(&mut log_lines, format!("Travelled to {}.", locations()[index.min(3)].name));
  110|             save.set(s);
  111|             echo.set(log_lines);
  112|         })
  113|     };
  114|     let on_fight = {
  115|         let save = save.clone();
  116|         let echo = echo.clone();
  117|         Callback::from(move |()| {
  118|             let mut s = (*save).clone();
  119|             let mut log_lines = (*echo).clone();
  120|             start_battle(&mut s.player, false, &mut Rng::new(s.seed));
  121|             push(&mut log_lines, "Battle start.".to_string());
  122|             save.set(s);
  123|             echo.set(log_lines);
  124|         })
  125|     };
  126|     let on_fight_boss = {
  127|         let save = save.clone();
  128|         let echo = echo.clone();
  129|         Callback::from(move |()| {
  130|             let mut s = (*save).clone();
  131|             let mut log_lines = (*echo).clone();
  132|             start_battle(&mut s.player, true, &mut Rng::new(s.seed));
  133| 

src/ui/app.rs: 302 lines, showing 55-99
   55|             v
   56|         }
   57|         None => echo.to_vec(),
   58|     };
   59| 
   60|     let mut rng = Rng::new(save.seed);
   61|     let shop = Shop::generate(player.character.level, loc.tier, player.character.stats.cha, player.shop_visits, &mut rng);
   62| 
   63|     // --- callbacks -----------------------------------------------------------------------
   64|     let on_new_game = {
   65|         let screen = screen.clone();
   66|         let save = save.clone();
   67|         let echo = echo.clone();
   68|         Callback::from(move |class: Class| {
   69|             let slot = save.slot % SLOTS;
   70|             let fresh = new_game(class, slot, sample_seed_for(class, slot));
   71|             // Carry the log across instead of blanking it: the echoed lines are still the
   72|             // player's history, and `log` only renders what the current battle left behind.
   73|             let carried = (*echo).clone();
   74|             let mut s = fresh;
   75|             s.player.battle = None;
   76|             save.set(s);
   77|             echo.set(carried);
   78|             screen.set(Screen::Game);
   79|         })
   80|     };
   81|     let on_load = {
   82|         let screen = screen.clone();
   83|         Callback::from(move |slot: u8| {
   84|             // Phase 6 wires localStorage; until then loading just shows the sample run.
   85|             log_placeholder(format!("loa

edited src/ui/app.rs: -589 +701 chars; file is now 303 lines

edited src/ui/app.rs: -106 +241 chars; file is now 305 lines

edited src/ui/app.rs: -69 +84 chars; file is now 305 lines

exit=0
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
warning: unused import: `price_after_cha`
 --> src/ui/shop_panel.rs:6:44
  |
6 | use crate::r#core::balance::{cha_discount, price_after_cha};
  |                                            ^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default

warning: unused variable: `tier`
   --> src/core/shop.rs:485:27
    |
485 | fn roll_power(level: u32, tier: u32, rng: &mut Rng) -> u32 {
    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_tier`
    |
    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default

warning: unused variable: `load_cb`
  --> src/ui/start_screen.rs:43:9
   |
43 |     let load_cb = {
   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_load_cb`

warning: unused variable: `reset_cb`
  --> src/ui/start_screen.rs:50:9
   |
50 |     let reset_cb = {
   |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reset_cb`

warning: function `AppProps_of` should have a snake case name
  --> src/main.rs:32:4
   |
32 | fn AppProps_of(save: crate::r#core::save::SaveGame) -> crate::ui::app::AppProps {
   |    ^^^^^^^^^^^ help: convert the identifier to snake case: `app_props_of`
   |
   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default

warning: call to `.clone()` on a reference in this situation does nothing
  -->

exit=101
running 44 tests
test core::battle::tests::damage_is_at_least_one_and_decreases_with_defence ... ok
test core::balance::tests::boss_scales_above_mobs_and_price_grows_superlinear ... ok
test core::balance::tests::cha_discount_reduces_price_and_caps ... ok
test core::battle::tests::evasion_and_crit_are_bounded ... ok
test core::battle::tests::respawn_keeps_90_percent_of_gold ... ok
test core::battle::tests::turn_order_follows_speed ... ok
test core::battle::tests::same_seed_replays_identical_battle_log ... ok
test core::battle::tests::four_locations_each_with_3_mobs_and_a_boss ... ok
test core::battle::tests::companion_effect_applies_then_expires ... ok
test core::battle::tests::wave1_enemy_dies_to_level1_hero_of_every_class ... ok
test core::battle::tests::auto_potion_rules_trigger ... ok
test core::save::tests::empty_slot_is_not_a_run ... ok
test core::save::tests::slot_keys_are_distinct_and_index_pure ... ok
test core::save::tests::new_game_gives_60_stat_points ... ok
test core::save::tests::new_game_is_seeded_deterministically ... ok
test core::rng::tests::same_seed_replays_same_stream ... ok
test core::shop::tests::cannot_buy_without_gold ... FAILED
test core::events::tests::gold_bonus_applies_only_while_following ... FAILED
test core::events::tests::stranger_table_matches_documented_thresholds ... FAILED
test core::battle::tests::every_location_boss_is_bearable_at_reference_levels ... FAILED
test core::events::tests::events_roll_with_documented_probabilities ... 

exit=0
2026-09-09T13:14:52.631413Z  INFO Starting trunk 0.21.14
2026-09-09T13:14:52.635327Z  INFO starting build
2026-09-09T13:14:54.424929Z  INFO downloading wasm-opt version="version_123"
2026-09-09T13:14:56.962308Z  INFO installing wasm-opt
2026-09-09T13:14:57.686425Z  INFO applying new distribution
2026-09-09T13:14:57.686726Z  INFO success

   Compiling emberfall v0.1.0 (/home/zerc/rpgbench/game)
warning: unused import: `price_after_cha`
 --> src/ui/shop_panel.rs:6:44
  |
6 | use crate::r#core::balance::{cha_discount, price_after_cha};
  |                                            ^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default

warning: unused variable: `tier`
   --> src/core/shop.rs:485:27
    |
485 | fn roll_power(level: u32, tier: u32, rng: &mut Rng) -> u32 {
    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_tier`
    |
    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default

warning: unused variable: `load_cb`
  --> src/ui/start_screen.rs:43:9
   |
43 |     let load_cb = {
   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_load_cb`

warning: unused variable: `reset_cb`
  --> src/ui/start_screen.rs:50:9
   |
50 |     let reset_cb = {
   |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_reset_cb`

warning: function `AppProps_of` should have a snake case name
  --> src/main.rs:32:4
  

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::battle::tests::different_seeds_diverge', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 0
dist/ with .wasm present: True

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
error: unused variable: `tier`
   --> src/core/shop.rs:485:27
    |
485 | fn roll_power(level: u32, tier: u32, rng: &mut Rng) -> u32 {
    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_tier`
    |
    = note: `-D unused-variables` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(unused_variables)]`

error: accessing first element with `at.get(0)`
   --> src/core/balance.rs:314:21
    |
314 |                     at.get(0).map(|r| r.ttk).unwrap_or_else(|| get(0)),
    |                     ^^^^^^^^^ help: try: `at.first()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.98.0/index.html#get_first
    = note: `-D clippy::get-first` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::get_first)]`

error: accessing first element with `at.get(0)`
   --> src/core/balance.rs:319:21
    |
319 |                     at.get(0).map(|r| r.hp_left).unwrap_or_else(|| get(1)),
    |                     ^^^^^^^^^ help: try: `at.first()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.98.0/index.html#get_first

error: this function has too many arguments (9/7)
   --> src/core/battle.rs:328:5
    |
328 | /     pub fn new_battle(
329 | |         player: &Character,
330 | |         gear_atk: f32,
331 | |         gear_def: f32,
...   |
337 

edited src/core/shop.rs: -60 +61 chars; file is now 595 lines

src/ui/shop_panel.rs: 124 lines, showing 1-10
    1| //! Shop panel: the visit's stock with prices / affixes / power, Buy / Sell buttons that only
    2| //! emit callbacks, and the visible CHA discount.
    3| 
    4| use yew::prelude::*;
    5| 
    6| use crate::r#core::balance::{cha_discount, price_after_cha};
    7| use crate::r#core::shop::{Offer, Potion, Shop};
    8| 
    9| #[derive(Properties, PartialEq, Clone)]
   10| pub struct ShopPanelProps {

edited src/ui/shop_panel.rs: -60 +41 chars; file is now 124 lines

edited src/ui/start_screen.rs: -15 +16 chars; file is now 141 lines

edited src/ui/start_screen.rs: -16 +17 chars; file is now 141 lines

edited src/ui/location_panel.rs: -50 +42 chars; file is now 132 lines

edited src/ui/location_panel.rs: -45 +37 chars; file is now 132 lines

edited src/ui/location_panel.rs: -48 +40 chars; file is now 132 lines

edited src/main.rs: -81 +82 chars; file is now 52 lines

src/main.rs: 52 lines, showing 1-18
    1| //! EMBERFALL entry point.
    2| //! Native: prints the balance table (the graded contract). wasm32: mounts the Yew app with a
    3| //! sample `SaveGame` built by `core::save::new_game`, so the page renders real numbers.
    4| 
    5| #[path = "core/mod.rs"]
    6| pub mod core;
    7| 
    8| #[cfg(target_arch = "wasm32")]
    9| #[path = "ui/mod.rs"]
   10| pub mod ui;
   11| 
   12| #[cfg(target_arch = "wasm32")]
   13| fn main() {
   14|     use crate::r#core::save::new_game;
   15|     use crate::r#core::stats::Class;
   16|     use crate::ui::app::App;
   17| 
   18|     let sample = new_game(Class::Warrior, 0, 0x5EB7_1F0C);

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
error[E0425]: cannot find function, tuple struct or tuple variant `AppProps_of` in this scope
  --> src/main.rs:19:69
   |
19 |     yew::Renderer::<App>::with_root_and_props(mount_point().into(), AppProps_of(sample)).render();
   |                                                                     ^^^^^^^^^^^
...
32 | fn app_props_of(save: crate::r#core::save::SaveGame) -> crate::ui::app::AppProps {
   | -------------------------------------------------------------------------------- similarly named function `app_props_of` defined here
   |
help: a function with a similar name exists
   |
19 -     yew::Renderer::<App>::with_root_and_props(mount_point().into(), AppProps_of(sample)).render();
19 +     yew::Renderer::<App>::with_root_and_props(mount_point().into(), app_props_of(sample)).render();
   |

For more information about this error, try `rustc --explain E0425`.
error: could not compile `emberfall` (bin "emberfall") due to 1 previous error

edited src/main.rs: -94 +95 chars; file is now 52 lines

exit=0
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::event_rolls_are_deterministic', 'core::battle::tests::different_seeds_diverge', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 3 warnings+errors (exit 0)
wasm32 check: exit 0
dist/ with .wasm present: True

src/core/mod.rs: 9 lines, showing 1-9
    1| //! Game core. No web/yew dependencies here — this is the rules engine.
    2| 
    3| pub mod balance;
    4| pub mod battle;
    5| pub mod events;
    6| pub mod rng;
    7| pub mod save;
    8| pub mod shop;
    9| pub mod stats;

src/core/save.rs: 241 lines, showing 1-241
    1| //! SaveGame (serde, versioned, 3 slots) and the player's run state.
    2| //!
    3| //! Slot handling is a **pure function of the slot index** so the tests can pin it without a
    4| //! browser: no web-sys or gloo reference may appear in this file — the UI layer calls `slot_key`
    5| //! and does the IO.
    6| 
    7| use serde::{Deserialize, Serialize};
    8| 
    9| use crate::core::battle::BattleState;
   10| use crate::core::events::Companion;
   11| use crate::core::shop::{Item, Potion};
   12| use crate::core::stats::{Character, Class};
   13| 
   14| /// Version stamp written into every slot. Bumped when the layout changes; `from_json` on an old
   15| /// version returns `Err(SaveError::Version)` rather than silently misreading bytes.
   16| pub const SAVE_VERSION: u32 = 1;
   17| 
   18| /// Number of save slots (3).
   19| pub const SLOTS: u8 = 3;
   20| 
   21| /// Starting gold granted by `new_game`. Deliberately below the first gear price
   22| /// (`item_price(3, 0)`), so the first purchase is a real decision.
   23| pub const STARTING_GOLD: u32 = 40;
   24| 
   25| /// The localStorage prefix for a slot; `slot_key` appends the index.
   26| const SAVE_KEY_PREFIX: &str = "emberfall.save.";
   27| 
   28| /// The localStorage key for a slot — pure function of the index, no IO.
   29| /// `slot_key(0) == "emberfall.save.0"` etc. Slots are 0..SLOTS.
   30| pub fn slot_key(slot: u8) -> String {
   31|     f

src/core/battle.rs: 1037 lines, showing 1-200
    1| //! Turn-based idle battle: combatants, enemies, locations, turn order, auto-potions,
    2| //! death/respawn and companion effects.
    3| //!
    4| //! All randomness comes from `core::rng::Rng`. No other entropy source.
    5| //! Stat math lives in `core::stats`; enemy scaling, boss multipliers and pricing live in
    6| //! `core::balance`. This module orchestrates them, it never re-derives them.
    7| 
    8| use serde::{Deserialize, Serialize};
    9| 
   10| use crate::core::rng::Rng;
   11| use crate::core::stats::{damage_formula, Character, Derived};
   12| 
   13| /// Hard stop for a single fight, mirroring the balance harness.
   14| pub const MAX_TURNS: u32 = 400;
   15| /// A fight that stays inside this many turns is "clearable" (the test contract).
   16| pub const N_TURNS_CLEAR: u32 = 60;
   17| /// HP fraction below which the auto-potion rule drinks an HP potion.
   18| pub const HP_POTION_THRESHOLD: f32 = 0.35;
   19| /// Fraction of `max_hp` an HP potion restores.
   20| pub const HP_POTION_RESTORE: f32 = 0.45;
   21| /// Fraction of `max_mp` an MP potion restores.
   22| pub const MP_POTION_RESTORE: f32 = 0.50;
   23| /// A buff potion's +25% on one derived stat, lasting `BUFF_TURNS` turns.
   24| pub const BUFF_PCT: f32 = 0.25;
   25| /// Turns a buff potion lasts.
   26| pub const BUFF_TURNS: u32 = 6;
   27| /// Fraction of gold lost on death (docs/mechanics.md §8).
   28| pub const DEATH_GOLD_RATE

src/core/battle.rs: 1037 lines, showing 200-529
  200|                 MobEntry { name: "Ore Golem", hp: 180.0, atk: 19.0, def: 13.0, gold: 24.0, xp: 21.0 },
  201|                 MobEntry { name: "Deep Echo", hp: 210.0, atk: 22.0, def: 15.0, gold: 28.0, xp: 25.0 },
  202|             ],
  203|             boss: cinder.name,
  204|             min_level: 18,
  205|             requires_prev_boss: true,
  206|         },
  207|         Location {
  208|             name: LOCATION_NAMES[3],
  209|             tier: 4,
  210|             mobs: vec![
  211|                 MobEntry { name: "Obsidian Pawn", hp: 220.0, atk: 24.0, def: 18.0, gold: 32.0, xp: 29.0 },
  212|                 MobEntry { name: "Void Sentry", hp: 260.0, atk: 28.0, def: 21.0, gold: 38.0, xp: 34.0 },
  213|                 MobEntry { name: "Gloom Revenant", hp: 300.0, atk: 32.0, def: 24.0, gold: 44.0, xp: 40.0 },
  214|             ],
  215|             boss: obsidian.name,
  216|             min_level: 30,
  217|             requires_prev_boss: true,
  218|         },
  219|     ]
  220| }
  221| 
  222| /// The location for `index` (clamped to the 4 defined).
  223| pub fn location(index: usize) -> Location {
  224|     locations().remove(index.min(3))
  225| }
  226| 
  227| /// Whether `player_level` plus already-slain bosses allow travelling to `index`.
  228| pub fn is_unlocked(loc: &Location, player_level: u32, slain: &[&'static str]) -> bool {
  229|     if player_level < loc.min_level {
  230|     

ERROR: only these cargo subcommands are allowed: ['build', 'check', 'clippy', 'fmt', 'metadata', 'run', 'test', 'tree']

src/core/battle.rs: 1037 lines, showing 529-768
  529|                         target: self.combatants[defender].name().to_string(),
  530|                     });
  531|                 } else {
  532|                     let dmg = atk.max(1.0);
  533|                     events.push(BattleEvent::Attack {
  534|                         attacker: self.combatants[actor].name().to_string(),
  535|                         target: self.combatants[defender].name().to_string(),
  536|                         damage: dmg,
  537|                         crit: false,
  538|                     });
  539|                     self.damage_target(defender, dmg, &mut events);
  540|                 }
  541|                 self.settle(events)
  542|             }
  543|             Combatant::Companion { .. } => self.settle(events),
  544|         }
  545|     }
  546| 
  547|     /// Run `step` until `done` or `MAX_TURNS`.
  548|     pub fn run_to_completion(&mut self, rng: &mut Rng) -> BattleOutcome {
  549|         let mut acc: Vec<BattleEvent> = Vec::new();
  550|         let mut turns = 0u32;
  551|         while !self.done() && turns < MAX_TURNS {
  552|             let step = self.step(rng);
  553|             acc.extend(step.events);
  554|             if step.done {
  555|                 break;
  556|             }
  557|             turns = self.turn;
  558|         }
  559|         let cleared = self.pending_alive == 0 && self.pending.is_empty() && !self.hero_dead;
  560|      

ERROR: only these cargo subcommands are allowed: ['build', 'check', 'clippy', 'fmt', 'metadata', 'run', 'test', 'tree']

src/core/events.rs: 230 lines, showing 1-230
    1| //! Random travel events and CHA-gated companions.
    2| //!
    3| //! INTERFACE PHASE (phase 2). Bodies are `todo!()`; phase 3 implements them. The tests below are
    4| //! the contract. All draws go through `core::rng::Rng` — an event roll must never touch any other
    5| //! entropy source, which is what makes the probability tests reproducible.
    6| 
    7| use serde::{Deserialize, Serialize};
    8| 
    9| use crate::core::rng::Rng;
   10| 
   11| /// Roll one event every `EVENT_EVERY` turns while travelling, and once per town visit.
   12| pub const EVENT_EVERY: u32 = 5;
   13| 
   14| /// Documented event probabilities (docs/mechanics.md §7). These sum to 1.0 and are the exact
   15| /// numbers the sampled test asserts against.
   16| pub const P_TREASURE: f32 = 0.30;
   17| pub const P_AMBUSH: f32 = 0.25;
   18| pub const P_SHRINE: f32 = 0.20;
   19| pub const P_MERCHANT: f32 = 0.15;
   20| pub const P_STRANGER: f32 = 0.10;
   21| 
   22| /// A stranger offer, resolved once by `try_recruit` — no rerolls.
   23| #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
   24| pub struct Stranger {
   25|     pub name: String,
   26|     /// CHA required for the stranger to join. `cha >= cha_threshold` succeeds; anything less and
   27|     /// the stranger simply leaves.
   28|     pub cha_threshold: u32,
   29|     /// How many turns they stay once recruited: 2 or 3 by design.
   30|     pub turns: u32,
   

src/core/shop.rs: 595 lines, showing 1-330
    1| //! Weapon/armor generation with power growth, potions, pricing, buying and selling.
    2| //!
    3| //! Pricing and the CHA discount are *not* recomputed here — they are the single-source functions
    4| //! in `core::balance` (`item_price`, `price_after_cha`, `cha_discount`). This module decides what
    5| //! the shop contains and who may take it.
    6| //!
    7| //! Determinism: every draw comes from the `Rng` passed to [`Shop::generate`], and `visit` is
    8| //! mixed into the stream, so two visits never restock identical shelves while the same
    9| //! `(level, tier, cha, visit)` always replays byte-identically.
   10| //!
   11| //! Pricing and the CHA discount are *not* recomputed here — they are the single-source functions
   12| //! in `core::balance` (`item_price`, `price_after_cha`, `cha_discount`). This module decides what
   13| //! the shop contains and who may take it.
   14| 
   15| use serde::{Deserialize, Serialize};
   16| 
   17| use crate::core::balance::{item_price, price_after_cha};
   18| use crate::core::rng::Rng;
   19| 
   20| /// Slots of generated gear offered per visit. Restocks on every visit.
   21| pub const STOCK_SLOTS: usize = 6;
   22| 
   23| /// Minimum and maximum affixes a generated item can carry (docs/mechanics.md §6).
   24| pub const AFFIX_MIN: u32 = 0;
   25| pub const AFFIX_MAX: u32 = 3;
   26| 
   27| /// Gold returned on a sale, as a fraction of the price actually paid

src/core/shop.rs: 595 lines, showing 330-595
  330|             b.gear().iter().map(|&i| format!("{:?}", b.stock[i])).collect::<Vec<_>>(),
  331|             "two visits from the same seed must not restock identical shelves"
  332|         );
  333|     }
  334| 
  335|     /// Item power grows with player level and with location tier — monotonic in expectation over
  336|     /// a seeded 40-sample sweep.
  337|     #[test]
  338|     fn item_power_grows_with_level_and_tier() {
  339|         let mean_power = |level: u32, tier: u32| -> f32 {
  340|             let mut sum = 0u32;
  341|             for s in 0..40u64 {
  342|                 let shop = gen(level, tier, 15, 1, 0x5EED ^ s);
  343|                 sum += shop.gear().iter().map(|&i| power_of(&shop.stock[i])).sum::<u32>();
  344|             }
  345|             sum as f32 / 40.0
  346|         };
  347|         // Same tier, deeper level.
  348|         assert!(mean_power(10, 2) > mean_power(1, 2), "power must grow with level");
  349|         assert!(mean_power(25, 3) > mean_power(10, 2), "power must keep growing");
  350|         // Same level, deeper tier.
  351|         assert!(mean_power(10, 3) > mean_power(10, 1), "power must grow with tier");
  352|     }
  353| 
  354|     /// CHA lowers the price actually paid; more CHA never costs more. Potions keep their sticker.
  355|     #[test]
  356|     fn cha_discounts_gear_but_not_potions() {
  357|         let low = gen(10, 2, 8, 1, 0x1234);
  358|         let

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src/core/balance.rs: 412 lines, showing 1-120
    1| //! Class balance model + the balance table (docs/mechanics.md §5, §9).
    2| //!
    3| //! The graded measure: expected turns-to-kill the current location's boss, and the fraction of
    4| //! max HP left when it dies, at levels 1 / 10 / 25, each with the best gear affordable from a
    5| //! fixed gold budget. The three classes must land within ±10% of each other on both numbers at
    6| //! every reference point, and nobody may die.
    7| 
    8| use serde::{Deserialize, Serialize};
    9| 
   10| use crate::core::rng::{Rng, BALANCE_SEED};
   11| use crate::core::stats::{damage_formula, Class, Character, Derived};
   12| 
   13| /// Reference levels the balance test is evaluated at.
   14| pub const REFERENCE_LEVELS: [u32; 3] = [1, 10, 25];
   15| 
   16| /// Gold budget available at each reference level (paired with REFERENCE_LEVELS).
   17| pub const BUDGETS: [u32; 3] = [260, 1400, 6000];
   18| 
   19| /// Location index per reference level: Ember Fields, Ashen Woods, Cinder Mines.
   20| pub const REFERENCE_LOCATIONS: [usize; 3] = [0, 1, 2];
   21| 
   22| /// Location tier (1..4) per reference level.
   23| pub const REFERENCE_TIERS: [u32; 3] = [1, 2, 3];
   24| 

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src/core/balance.rs: 412 lines, showing 120-239
  120| /// One row of the balance table.
  121| #[derive(Debug, Clone, Copy, Serialize, Deserialize)]
  122| pub struct BalanceRow {
  123|     pub class: &'static str,
  124|     pub level: u32,
  125|     pub location: &'static str,
  126|     pub boss: &'static str,
  127|     /// Total power of the gear bought with the level's budget.
  128|     pub loadout_power: u32,
  129|     pub gold_spent: u32,
  130|     /// Expected turns to kill the boss (mean of the deterministic sample).
  131|     pub ttk: f32,
  132|     /// Hero HP left when the boss dies, as a fraction of max HP.
  133|     pub hp_left: f32,
  134|     /// Whether the hero survived.
  135|     pub survived: bool,
  136| }
  137| 
  138| /// One aggregate entry per class per level.
  139| #[derive(Debug, Clone, Copy, Serialize, Deserialize)]
  140| pub struct BalancePoint {
  141|     pub level: u32,
  142|     pub ttk: [f32; 3],
  143|     pub hp_left: [f32; 3],
  144| }
  145| 
  146| /// Spread of `v` relative to its mean.
  147| #[inline]
  148| fn spread(v: &[f32; 3]) -> f32 {
  149|     let max = v.iter().cloned().fold(f32::MIN, f32::max);
  150|     let min = v.iter().cloned().fold(f32::MAX, f32::min);
  1

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src/core/balance.rs: 412 lines, showing 239-358
  239| }
  240| 
  241| /// The balance table: one row per class per reference level.
  242| pub fn balance_table() -> Vec<BalanceRow> {
  243|     let mut rows = Vec::new();
  244|     for (&level, &location) in REFERENCE_LEVELS.iter().zip(REFERENCE_LOCATIONS.iter()) {
  245|         let budget = BUDGETS[REFERENCE_LEVELS.iter().position(|&l| l == level).unwrap()];
  246|         let mut template_rng = Rng::new(BALANCE_SEED ^ (level as u64).wrapping_mul(0x9E37_79B9));
  247|         for class in Class::all() {
  248|             let mut ch = Character::new(class);
  249|             ch.level = level;
  250|             // Rebuild primaries for the level from base + growth so the table is level-correct.
  251|             let g = class.growth();
  252|             let extra = level.saturating_sub(1);
  253|             ch.stats.str += g.str * extra;
  254|             ch.stats.will += g.will * extra;
  255|             ch.stats.con += g.con * extra;
  256|             ch.stats.dex += g.dex * extra;
  257|             ch.stats.int += g.int * extra;
  258|             ch.stats.cha += g.cha * extra;
  259| 
  260|             let (power, spent) = best_affordable(budget, &mut template_

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src/core/balance.rs: 412 lines, showing 358-412
  358| }
  359| 
  360| #[cfg(test)]
  361| mod tests {
  362|     use super::*;
  363| 
  364|     /// The graded contract: ±10% on both measures at every reference level, nobody dies.
  365|     #[test]
  366|     fn balance_table_within_10_percent() {
  367|         let rows = balance_table();
  368|         assert_eq!(rows.len(), 9);
  369|         let points = balance_points(&rows);
  370| 
  371|         for r in &rows {
  372|             assert!(
  373|                 r.survived && r.hp_left > 0.0,
  374|                 "{} died against {} at level {}",
  375|                 r.class,
  376|                 r.boss,
  377|                 r.level
  378|             );
  379|         }
  380| 
  381|         for (level, ttk, hp) in spreads(&points) {
  382|             assert!(
  383|                 ttk <= TOLERANCE,
  384|                 "ttk spread {ttk:.4} > {TOLERANCE} at level {level}"
  385|             );
  386|             assert!(
  387|                 hp <= TOLERANCE,
  388|                 "hp_left spread {hp:.4} > {TOLERANCE} at level {level}"
  389|             );
  390|         }
  391|     }
  392| 
  393|     #[test]
  394|     fn deterministic_across_ca

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src/core/battle.rs: 1037 lines, showing 880-999
  880|     fn evasion_and_crit_are_bounded() {
  881|         use crate::core::stats::{CRIT_CAP, EVAD_CAP};
  882|         for class in Class::all() {
  883|             for lvl in [1u32, 10, 25] {
  884|                 let d = hero(class, lvl).derived();
  885|                 assert!(d.evad <= EVAD_CAP + 1e-6, "evad {d:?} exceeds cap");
  886|                 assert!(d.crit_chance <= CRIT_CAP + 1e-6, "crit {d:?} exceeds cap");
  887|             }
  888|         }
  889|     }
  890| 
  891|     #[test]
  892|     fn turn_order_follows_speed() {
  893|         let mut rng = Rng::new(crate::core::rng::BALANCE_SEED);
  894|         let c = hero(Class::Archer, 1);
  895|         let st = BattleState::new_battle(&c, 0.0, 0.0, 0, false, 1, (0, 0, 0), vec![], &mut rng);
  896|         let order = st.initiative();
  897|         assert!(order.len() >= 2);
  898|         let speeds: Vec<f32> = order.iter().map(|&i| st.combatants[i].speed()).collect();
  899|         for w in speeds.windows(2) {
  900|             assert!(w[0] >= w[1] - 1e-6, "initiative not sorted by speed: {speeds:?}");
  901|         }
  902|     }
  903| 
  904|     #[test]
  905|     fn wave1_enemy_dies_to_level1_h

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::events::tests::stranger_table_matches_documented_thresholds', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::battle::tests::different_seeds_diverge', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 0 warnings+errors (exit 0)
dist/ with .wasm present: True

exit=0
2026-09-09T14:17:05.424910Z  INFO Starting trunk 0.21.14
2026-09-09T14:17:05.428742Z  INFO starting build
2026-09-09T14:17:08.634246Z  INFO applying new distribution
2026-09-09T14:17:08.634783Z  INFO success

   Compiling emberfall v0.1.0 (/home/zerc/rpgbench/game)
    Finished `release` profile [optimized] target(s) in 1.80s
dist/emberfall-3f6ff0698cfe3d51.js	27159 bytes
dist/emberfall-3f6ff0698cfe3d51_bg.wasm	409192 bytes
dist/index.html	1097 bytes

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::events_roll_with_documented_probabilities', 'core::battle::tests::different_seeds_diverge', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::shop::tests::buying_pays_the_discounted_price', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 3 warnings+errors (exit 0)
wasm32 check: exit 0
dist/ with .wasm present: True

exit=1
error: unexpected argument '|' found

Usage: cargo test [OPTIONS] [TESTNAME] [-- [ARGS]...]

For more information, try '--help'.

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 28/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::events::tests::companion_leaves_after_2_to_3_turns', 'core::events::tests::event_rolls_are_deterministic', 'core::events::tests::events_only_roll_on_the_interval', 'core::events::tests::events_roll_with_documented_probabilities', 'core::events::tests::gold_bonus_applies_only_while_following', 'core::events::tests::stranger_table_matches_documented_thresholds', 'core::events::tests::stranger_joins_iff_cha_meets_threshold', 'core::shop::tests::cannot_buy_without_gold', 'core::shop::tests::buying_pays_the_discounted_price', 'core::shop::tests::selling_returns_half_paid_price', 'core::shop::tests::cha_discounts_gear_but_not_potions', 'core::shop::tests::item_power_grows_with_level_and_tier', 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 3 warnings+errors (exit 0)
wasm32 check: exit 0
dist/ with .wasm present: True

exit=1
error: unexpected argument '|' found

Usage: cargo test [OPTIONS] [TESTNAME] [-- [ARGS]...]

For more information, try '--help'.

exit=101
running 44 tests
test core::balance::tests::boss_scales_above_mobs_and_price_grows_superlinear ... ok
test core::balance::tests::cha_discount_reduces_price_and_caps ... ok
test core::battle::tests::damage_is_at_least_one_and_decreases_with_defence ... ok
test core::battle::tests::evasion_and_crit_are_bounded ... ok
test core::battle::tests::auto_potion_rules_trigger ... ok
test core::battle::tests::companion_effect_applies_then_expires ... ok
test core::battle::tests::four_locations_each_with_3_mobs_and_a_boss ... ok
test core::battle::tests::respawn_keeps_90_percent_of_gold ... ok
test core::battle::tests::different_seeds_diverge ... FAILED
test core::battle::tests::every_location_boss_is_bearable_at_reference_levels ... FAILED
test core::battle::tests::turn_order_follows_speed ... ok
test core::battle::tests::same_seed_replays_identical_battle_log ... ok
test core::events::tests::event_rolls_are_deterministic ... FAILED
test core::battle::tests::wave1_enemy_dies_to_level1_hero_of_every_class ... ok
test core::events::tests::events_only_roll_on_the_interval ... FAILED
test core::events::tests::companion_leaves_after_2_to_3_turns ... FAILED
test core::events::tests::events_roll_with_documented_probabilities ... FAILED
test core::events::tests::gold_bonus_applies_only_while_following ... FAILED
test core::events::tests::stranger_joins_iff_cha_meets_threshold ... FAILED
test core::events::tests::stranger_table_matches_documented_thresholds ... FAILED
test core::save::t

src/core/events.rs: 230 lines, showing 1-130
    1| //! Random travel events and CHA-gated companions.
    2| //!
    3| //! INTERFACE PHASE (phase 2). Bodies are `todo!()`; phase 3 implements them. The tests below are
    4| //! the contract. All draws go through `core::rng::Rng` — an event roll must never touch any other
    5| //! entropy source, which is what makes the probability tests reproducible.
    6| 
    7| use serde::{Deserialize, Serialize};
    8| 
    9| use crate::core::rng::Rng;
   10| 
   11| /// Roll one event every `EVENT_EVERY` turns while travelling, and once per town visit.
   12| pub const EVENT_EVERY: u32 = 5;
   13| 
   14| /// Documented event probabilities (docs/mechanics.md §7). These sum to 1.0 and are the exact
   15| /// numbers the sampled test asserts against.
   16| pub const P_TREASURE: f32 = 0.30;
   17| pub const P_AMBUSH: f32 = 0.25;
   18| pub const P_SHRINE: f32 = 0.20;
   19| pub const P_MERCHANT: f32 = 0.15;
   20| pub const P_STRANGER: f32 = 0.10;
   21| 
   22| /// A stranger offer, resolved once by `try_recruit` — no rerolls.
   23| #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
   24| pub struct Stranger {
   25|     pub name: String,
   26|     /// CHA required for the stranger to join. `cha >= cha_threshold` succeeds; anything less and
   27|     /// the stranger simply leaves.
   28|     pub cha_threshold: u32,
   29|     /// How many turns they stay once recruited: 2 or 3 by design.
   30|     pub turns: u32,
   

src/core/events.rs: 230 lines, showing 130-229
  130|         }
  131|     }
  132| 
  133|     /// Events roll with the documented probabilities: 2000 seeded rolls, sampled frequencies
  134|     /// within 4 points of `P_TREASURE` .. `P_STRANGER`.
  135|     #[test]
  136|     fn events_roll_with_documented_probabilities() {
  137|         const SAMPLES: u32 = 2000;
  138|         let mut counts = [0u32; 5]; // treasure, ambush, shrine, merchant, stranger
  139|         for s in 0..SAMPLES {
  140|             let mut rng = Rng::new(0xE5 ^ (s as u64));
  141|             // Force the "due" case; `turn` is varied so the interval rule can't be the only draw.
  142|             if let Some(e) = roll_event(&mut rng, 6, 15, (s * EVENT_EVERY).max(1), false) {
  143|                 match e {
  144|                     Event::Treasure { .. } => counts[0] += 1,
  145|                     Event::Ambush { .. } => counts[1] += 1,
  146|                     Event::Shrine { .. } => counts[2] += 1,
  147|                     Event::Merchant => counts[3] += 1,
  148|                     Event::Stranger(_) => counts[4] += 1,
  149|                     Event::Nothing => {}
  150|                 }
  151|             }
  152|         }
  153|         let n = SAMPLES as f32;
  154|         let expect = [P_TREASURE, P_AMBUSH, P_SHRINE, P_MERCHANT, P_STRANGER];
  155|         for (i, e) in expect.iter().enumerate() {
  156|             let got = counts[i] as f32 / n;
  157|             assert!(

src/core/rng.rs: 108 lines, showing 1-108
    1| //! Seeded deterministic randomness. The ONLY source of randomness in the game.
    2| //!
    3| //! Every combat roll, shop restock and event draw goes through [`Rng`], which wraps a
    4| //! `rand_chacha::ChaCha8Rng` seeded from the active save slot (or a fixed seed in tests) so
    5| //! that replays and tests are bit-identical.
    6| 
    7| use rand::RngCore;
    8| use rand::SeedableRng;
    9| 
   10| /// Fixed seed used by the balance table and every deterministic test.
   11| pub const BALANCE_SEED: u64 = 0x5B4E_3F12_3456_78AB;
   12| 
   13| /// Deterministic PRNG handle passed explicitly through core code.
   14| /// The stream is intentionally NOT serialised: saves persist the `seed` and rebuild the
   15| /// generator, so a loaded game replays deterministically from the same seed.
   16| #[derive(Debug, Clone)]
   17| pub struct Rng {
   18|     inner: rand_chacha::ChaCha8Rng,
   19| }
   20| 
   21| impl Default for Rng {
   22|     fn default() -> Self {
   23|         Self::new(BALANCE_SEED)
   24|     }
   25| }
   26| 
   27| impl Rng {
   28|     /// Seed from any u64 (save slots use their slot index mixed with the creation time).
   29|     pub fn new(seed: u64) -> Self {
   30|         Self {
   31|             inner: rand_chacha::ChaCha8Rng::seed_from_u64(seed),
   32|         }
   33|     }
   34| 
   35|     /// Raw u32 draw.
   36|     #[inline]
   37|     pub fn next_u32(&mut self) -> u32 {
   38

src/core/shop.rs: 595 lines, showing 1-160
    1| //! Weapon/armor generation with power growth, potions, pricing, buying and selling.
    2| //!
    3| //! Pricing and the CHA discount are *not* recomputed here — they are the single-source functions
    4| //! in `core::balance` (`item_price`, `price_after_cha`, `cha_discount`). This module decides what
    5| //! the shop contains and who may take it.
    6| //!
    7| //! Determinism: every draw comes from the `Rng` passed to [`Shop::generate`], and `visit` is
    8| //! mixed into the stream, so two visits never restock identical shelves while the same
    9| //! `(level, tier, cha, visit)` always replays byte-identically.
   10| //!
   11| //! Pricing and the CHA discount are *not* recomputed here — they are the single-source functions
   12| //! in `core::balance` (`item_price`, `price_after_cha`, `cha_discount`). This module decides what
   13| //! the shop contains and who may take it.
   14| 
   15| use serde::{Deserialize, Serialize};
   16| 
   17| use crate::core::balance::{item_price, price_after_cha};
   18| use crate::core::rng::Rng;
   19| 
   20| /// Slots of generated gear offered per visit. Restocks on every visit.
   21| pub const STOCK_SLOTS: usize = 6;
   22| 
   23| /// Minimum and maximum affixes a generated item can carry (docs/mechanics.md §6).
   24| pub const AFFIX_MIN: u32 = 0;
   25| pub const AFFIX_MAX: u32 = 3;
   26| 
   27| /// Gold returned on a sale, as a fraction of the price actually paid

src/core/shop.rs: 595 lines, showing 160-359
  160|     }
  161| }
  162| 
  163| /// HP-potion restore fraction; MP-potion restore fraction; buff duration in turns.
  164| pub const BUFF_TURNS: u32 = 6;
  165| 
  166| /// One thing on sale: gear or a potion, with the price *already* discounted by the visitor's CHA
  167| /// (potions keep their sticker price).
  168| #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
  169| pub enum Offer {
  170|     Gear { item: Item, paid_price: u32 },
  171|     Potion { potion: Potion, price: u32 },
  172| }
  173| 
  174| /// The whole shop as presented on a visit.
  175| #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
  176| pub struct Shop {
  177|     /// Generated gear: exactly `STOCK_SLOTS` entries, power growing with the visit.
  178|     pub stock: Vec<Offer>,
  179|     /// The level and location tier the stock was generated for.
  180|     pub level: u32,
  181|     pub tier: u32,
  182|     /// Visitor's CHA at generation time (drives the discount baked into `paid_price`).
  183|     pub cha: u32,
  184|     /// Visit counter, used to mix the restock stream deterministically.
  185|     pub visit: u32,
  186| }
  187| 
  188| impl Shop {
  189|     /// Generate a full shop for a visit: `STOCK_SLOTS` pieces of gear whose power tracks
  190|     /// `level`/`tier`, plus the potion bench with the two stat-potion variants rolled against
  191|     /// `STAT_POTION_COMMON_RATE` / `STAT_POTION_RARE_RATE`.
  192| 

src/core/shop.rs: 595 lines, showing 359-498
  359|         let gear = low.gear();
  360|         assert!(!gear.is_empty());
  361|         for &i in &gear {
  362|             assert!(
  363|                 low.price(i, 8) >= high.price(i, 20),
  364|                 "a CHA-20 hero paid more than a CHA-8 hero for the same gear"
  365|             );
  366|         }
  367|         // At least one gear price really dropped.
  368|         assert!(
  369|             gear.iter().any(|&i| low.price(i, 8) > high.price(i, 20)),
  370|             "CHA discount never applied"
  371|         );
  372|         // Potion offers ignore CHA entirely.
  373|         let p = low.stock.iter().find(|o| matches!(o, Offer::Potion { .. }));
  374|         assert!(p.is_some(), "every visit should stock at least the core potions");
  375|     }
  376| 
  377|     /// A purchase you cannot afford is refused and leaves the gold untouched.
  378|     #[test]
  379|     fn cannot_buy_without_gold() {
  380|         let mut shop = gen(1, 1, 15, 1, 0x1111);
  381|         let gear = shop.gear();
  382|         let idx = *gear.first().expect("stock must have gear");
  383|         let price = shop.price(idx, 15);
  384|         let mut gold: u32 = price.saturating_sub(1); // one short
  385|         let before = gold;
  386|         let res = shop.buy(idx, &mut gold, &mut Rng::new(0x99));
  387|         assert_eq!(res, Err(BuyError::NotEnoughGold { price, gold: before }));
  388|         assert_eq!(g

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src/core/battle.rs: 1037 lines, showing 905-954
  905|     fn wave1_enemy_dies_to_level1_hero_of_every_class() {
  906|         for class in Class::all() {
  907|             let mut rng = Rng::new(crate::core::rng::BALANCE_SEED ^ (class as u64));
  908|             let c = hero(class, 1);
  909|             let mut st = BattleState::new_battle(&c, 0.0, 0.0, 0, false, 1, (0, 0, 0), vec![], &mut rng);
  910|             let out = st.run_to_completion(&mut rng);
  911|             assert!(
  912|                 out.cleared && !out.hero_died && out.turns <= N_TURNS_CLEAR,
  913|                 "{class:?} failed to clear wave 1: {out:?}"
  914|             );
  915|         }
  916|     }
  917| 
  918|     #[test]
  919|     fn every_location_boss_is_bearable_at_reference_levels() {
  920|         let refs: [(Class, u32, usize); 3] = [
  921|             (Class::Warrior, 1, 0),
  922|             (Class::Archer, 10, 1),
  923|             (Class::Wizard, 25, 2),
  924|         ];
  925|         for (class, level, loc) in refs {
  926|             let mut rng =
  927|                 Rng::new(crate::core::rng::BALANCE_SEED ^ ((level as u64) << 16) ^ (class as u64));
  928|             let c = hero(class, level);
  929|            

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src/core/battle.rs: 1037 lines, showing 995-1037
  995|         );
  996|     }
  997| 
  998|     #[test]
  999|     fn same_seed_replays_identical_battle_log() {
 1000|         let run = |seed: u64| {
 1001|             let mut rng = Rng::new(seed);
 1002|             let c = hero(Class::Archer, 5);
 1003|             let mut st =
 1004|                 BattleState::new_battle(&c, 4.0, 3.0, 1, false, 2, (2, 2, 0), vec![], &mut rng);
 1005|             let out = st.run_to_completion(&mut rng);
 1006|             (format!("{:?}", out.turns), out.cleared)
 1007|         };
 1008|         assert_eq!(run(0x1234), run(0x1234));
 1009|     }
 1010| 
 1011|     #[test]
 1012|     fn different_seeds_diverge() {
 1013|         let run = |seed: u64| {
 1014|             let mut rng = Rng::new(seed);
 1015|             let c = hero(Class::Archer, 10);
 1016|             let mut st =
 1017|                 BattleState::new_battle(&c, 6.0, 4.0, 1, true, 1, (3, 3, 1), vec![], &mut rng);
 1018|             st.run_to_completion(&mut rng).turns
 1019|         };
 1020|         assert_ne!(run(11), run(12));
 1021|     }
 1022| }
 1023| 
 1024| /// Resolve a hero death: full HP, `round(0.10 * gold)` lost, no item or level loss.
 1025| /// Returns

ERROR: only these cargo subcommands are allowed: ['build', 'check', 'clippy', 'fmt', 'metadata', 'run', 'test', 'tree']

exit=101
running 1 test
test core::battle::tests::different_seeds_diverge ... FAILED

failures:

failures:
    core::battle::tests::different_seeds_diverge

test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 43 filtered out; finished in 0.00s


    Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
     Running unittests src/main.rs (/home/zerc/rpgbench/target/debug/deps/emberfall-97c9a580c445fc95)

thread 'core::battle::tests::different_seeds_diverge' (1821701) panicked at src/core/battle.rs:1020:9:
assertion `left != right` failed
  left: 8
 right: 8
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
error: test failed, to rerun pass `--bin emberfall`

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src/core/battle.rs: 1037 lines, showing 1-120
    1| //! Turn-based idle battle: combatants, enemies, locations, turn order, auto-potions,
    2| //! death/respawn and companion effects.
    3| //!
    4| //! All randomness comes from `core::rng::Rng`. No other entropy source.
    5| //! Stat math lives in `core::stats`; enemy scaling, boss multipliers and pricing live in
    6| //! `core::balance`. This module orchestrates them, it never re-derives them.
    7| 
    8| use serde::{Deserialize, Serialize};
    9| 
   10| use crate::core::rng::Rng;
   11| use crate::core::stats::{damage_formula, Character, Derived};
   12| 
   13| /// Hard stop for a single fight, mirroring the balance harness.
   14| pub const MAX_TURNS: u32 = 400;
   15| /// A fight that stays inside this many turns is "clearable" (the test contract).
   16| pub const N_TURNS_CLEAR: u32 = 60;
   17| /// HP fraction below which the auto-potion rule drinks an HP potion.
   18| pub const HP_POTION_THRESHOLD: f32 = 0.35;
   19| /// Fraction of `max_hp` an HP potion restores.
   20| pub const HP_POTION_RESTORE: f32 = 0.45;
   21| /// Fraction of `max_mp` an MP potion restores.
   22| pub const MP_POTION_RESTORE: f32 = 0.50;
   23| /// A buff potion's +25% on one der

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src/core/battle.rs: 1037 lines, showing 380-499
  380|                     def: entry.def,
  381|                     speed: 1.0,
  382|                     evad: 0.0,
  383|                 });
  384|             }
  385|             if !pending.is_empty() {
  386|                 pending.remove(0);
  387|             }
  388|         }
  389| 
  390|         for c in companions {
  391|             combatants.push(Combatant::Companion {
  392|                 name: c.name,
  393|                 turns_left: c.turns_left,
  394|                 effect: c.effect,
  395|             });
  396|         }
  397| 
  398|         let mut state = BattleState {
  399|             location,
  400|             is_boss: boss,
  401|             order: Vec::new(),
  402|             combatants,
  403|             turn: 0,
  404|             gold_earned: 0,
  405|             potions_used: 0,
  406|             hero_dead: false,
  407|             log: Vec::new(),
  408|             pending_waves: if boss { 0 } else { waves.max(1) },
  409|             pending_alive: 0,
  410|             waves: if boss { 1 } else { waves.max(1) },
  411|             pending,
  412|             potions: potion_inventory,
  413|             entrance: false,

[READ BUDGET EXCEEDED (11 reads > 6): showing at most 120 lines. Files you already read this phase are still in your context unless you changed them; the orientation packet at the start holds the focus files in full. Prefer editing and running verify.]
src/core/battle.rs: 1037 lines, showing 500-619
  500|                         d *= derived.crit_mult;
  501|                     }
  502|                     (evaded, crit, d)
  503|                 };
  504| 
  505|                 if evaded {
  506|                     events.push(BattleEvent::Miss {
  507|                         attacker: self.combatants[actor].name().to_string(),
  508|                         target: self.combatants[target].name().to_string(),
  509|                     });
  510|                 } else {
  511|                     events.push(BattleEvent::Attack {
  512|                         attacker: self.combatants[actor].name().to_string(),
  513|                         target: self.combatants[target].name().to_string(),
  514|                         damage: dmg,
  515|                         crit,
  516|                     });
  517|                     self.damage_target(target, dmg, &mut events);
  518|                 }
  519|                 self.settle(events)
  520|             }
  521|             Combatant::Enemy { .. } => {
  522|                 let (atk, _) = self.combatants[actor].attack_power();
  523|                 let defender = self.pick_hero_target();
  524|                

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src/core/battle.rs: 1037 lines, showing 620-739
  620|             .copied()
  621|             .unwrap_or(1)
  622|             .max(1)
  623|     }
  624| 
  625|     fn hero_hp_frac(&self) -> f32 {
  626|         match &self.combatants[0] {
  627|             Combatant::Hero { derived, .. } => {
  628|                 (derived.hp_pool / derived.max_hp.max(1.0)).clamp(0.0, 1.0)
  629|             }
  630|             _ => 0.0,
  631|         }
  632|     }
  633| 
  634|     fn pick_enemy_target(&self) -> Option<usize> {
  635|         for &i in &self.order {
  636|             if let Combatant::Enemy { hp, .. } = &self.combatants[i] {
  637|                 if *hp > 0.0 {
  638|                     return Some(i);
  639|                 }
  640|             }
  641|         }
  642|         None
  643|     }
  644| 
  645|     fn pick_hero_target(&self) -> usize {
  646|         for (i, c) in self.combatants.iter().enumerate() {
  647|             if matches!(c, Combatant::Hero { .. }) {
  648|                 return i;
  649|             }
  650|         }
  651|         0
  652|     }
  653| 
  654|     fn damage_target(&mut self, target: usize, dmg: f32, events: &mut Vec<BattleEvent>) {
  655|         // Compute the kill 

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src/core/balance.rs: 412 lines, showing 300-412
  300| pub fn balance_points(rows: &[BalanceRow]) -> Vec<BalancePoint> {
  301|     REFERENCE_LEVELS
  302|         .iter()
  303|         .map(|&level| {
  304|             let at: Vec<&BalanceRow> = rows.iter().filter(|r| r.level == level).collect();
  305|             let get = |pick: usize| -> f32 {
  306|                 match pick {
  307|                     0 => at.iter().map(|r| r.ttk).sum::<f32>() / 3.0,
  308|                     _ => at.iter().map(|r| r.hp_left).sum::<f32>() / 3.0,
  309|                 }
  310|             };
  311|             BalancePoint {
  312|                 level,
  313|                 ttk: [
  314|                     at.get(0).map(|r| r.ttk).unwrap_or_else(|| get(0)),
  315|                     at.get(1).map(|r| r.ttk).unwrap_or_else(|| get(0)),
  316|                     at.get(2).map(|r| r.ttk).unwrap_or_else(|| get(0)),
  317|                 ],
  318|                 hp_left: [
  319|                     at.get(0).map(|r| r.hp_left).unwrap_or_else(|| get(1)),
  320|                     at.get(1).map(|r| r.hp_left).unwrap_or_else(|| get(1)),
  321|                     at.get(2).map(|r| r.hp_left).unwrap_or_else(|| get(1)),
  322|       

[READ BUDGET EXCEEDED (14 reads > 6): showing at most 120 lines. Files you already read this phase are still in your context unless you changed them; the orientation packet at the start holds the focus files in full. Prefer editing and running verify.]
src/core/balance.rs: 412 lines, showing 180-299
  180|         power = candidate;
  181|     }
  182|     (power, spent)
  183| }
  184| 
  185| /// Simulate the boss fight for one class at one reference level. Returns `(ttk, hp_left, survived)`.
  186| fn simulate(ch: &Character, gear_atk: f32, gear_def: f32, boss: &Boss, rng: &mut Rng) -> (f32, f32, bool) {
  187|     let mut d: Derived = Derived::with_gear(ch, gear_def, gear_atk);
  188|     let mut boss_hp = boss.hp;
  189|     let mut turn = 0u32;
  190| 
  191|     while boss_hp > 0.0 && turn < 400 {
  192|         turn += 1;
  193| 
  194|         // --- hero action ---
  195|         let (power, cost) = ch.attack_power(&d);
  196|         if cost > 0.0 {
  197|             d.mp_pool = (d.mp_pool - cost).max(0.0);
  198|         }
  199|         if !rng.chance(d.evad * 0.0) {
  200|             // boss "evade" is folded into the damage roll for simplicity of the harness
  201|             let mut dmg = damage_formula(power, d_def_of(boss));
  202|             if rng.chance(0.12) {
  203|                 dmg *= d.crit_mult;
  204|             }
  205|             boss_hp -= dmg;
  206|         }
  207|         if boss_hp <= 0.0 {
  208|             break;
  209|         }

exit=0
running 1 test
test tests::native_table_is_populated ... ok

test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 43 filtered out; finished in 0.01s


    Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s
     Running unittests src/main.rs (/home/zerc/rpgbench/target/debug/deps/emberfall-97c9a580c445fc95)

edited src/core/events.rs: -217 +747 chars; file is now 249 lines

edited src/core/events.rs: -165 +1542 chars; file is now 281 lines

edited src/core/events.rs: -115 +299 chars; file is now 288 lines

edited src/core/events.rs: -113 +461 chars; file is now 297 lines

edited src/core/events.rs: -129 +381 chars; file is now 305 lines

exit=101
Compiling emberfall v0.1.0 (/home/zerc/rpgbench/game)
error[E0425]: cannot find value `AMBUSH_ENEMY` in this scope
   --> src/core/events.rs:132:42
    |
132 |         Some(Event::Ambush { enemy_name: AMBUSH_ENEMY.sample(rng) })
    |                                          ^^^^^^^^^^^^ not found in this scope

For more information about this error, try `rustc --explain E0425`.
error: could not compile `emberfall` (bin "emberfall" test) due to 1 previous error

edited src/core/events.rs: -119 +117 chars; file is now 305 lines

exit=0
running 7 tests
test core::events::tests::event_rolls_are_deterministic ... ok
test core::events::tests::companion_leaves_after_2_to_3_turns ... ok
test core::events::tests::stranger_table_matches_documented_thresholds ... ok
test core::events::tests::gold_bonus_applies_only_while_following ... ok
test core::events::tests::events_only_roll_on_the_interval ... ok
test core::events::tests::stranger_joins_iff_cha_meets_threshold ... ok
test core::events::tests::events_roll_with_documented_probabilities ... ok

test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 37 filtered out; finished in 0.02s


   Compiling emberfall v0.1.0 (/home/zerc/rpgbench/game)
    Finished `test` profile [unoptimized + debuginfo] target(s) in 1.52s
     Running unittests src/main.rs (/home/zerc/rpgbench/target/debug/deps/emberfall-97c9a580c445fc95)

exit=1
error: unexpected argument '|' found

Usage: cargo test [OPTIONS] [TESTNAME] [-- [ARGS]...]

For more information, try '--help'.

src/core/shop.rs: 595 lines, showing 1-120
    1| //! Weapon/armor generation with power growth, potions, pricing, buying and selling.
    2| //!
    3| //! Pricing and the CHA discount are *not* recomputed here — they are the single-source functions
    4| //! in `core::balance` (`item_price`, `price_after_cha`, `cha_discount`). This module decides what
    5| //! the shop contains and who may take it.
    6| //!
    7| //! Determinism: every draw comes from the `Rng` passed to [`Shop::generate`], and `visit` is
    8| //! mixed into the stream, so two visits never restock identical shelves while the same
    9| //! `(level, tier, cha, visit)` always replays byte-identically.
   10| //!
   11| //! Pricing and the CHA discount are *not* recomputed here — they are the single-source functions
   12| //! in `core::balance` (`item_price`, `price_after_cha`, `cha_discount`). This module decides what
   13| //! the shop contains and who may take it.
   14| 
   15| use serde::{Deserialize, Serialize};
   16| 
   17| use crate::core::balance::{item_price, price_after_cha};
   18| use crate::core::rng::Rng;
   19| 
   20| /// Slots of generated gear offered per visit. Restocks on every visit.
   21| pub const STOCK_SLOTS: usize = 6;
   22| 
   23| /// Minimum and maximum affixes a generated item can carry (docs/mechanics.md §6).
   24| pub const AFFIX_MIN: u32 = 0;
   25| pub const AFFIX_MAX: u32 = 3;
   26| 
   27| /// Gold returned on a sale, as a fraction of the price actually paid

src/core/shop.rs: 595 lines, showing 120-299
  120| }
  121| 
  122| /// A potion the shop can stock. The two `Stat` variants are the spec's deliberate pair:
  123| /// one is cheap but rare, the other expensive but common.
  124| #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
  125| pub enum Potion {
  126|     /// Restore 45% of `max_hp`.
  127|     Hp,
  128|     /// Restore 50% of `max_mp`.
  129|     Mp,
  130|     /// `+pct` (e.g. 0.25) to one derived stat for `turns` turns (buff potions last `BUFF_TURNS`).
  131|     Buff {
  132|         stat: AffixTarget,
  133|         pct: f32,
  134|         turns: u32,
  135|         #[serde(default)]
  136|         label: String,
  137|     },
  138|     /// Permanently +1 to one primary stat (STR/WILL/CON/DEX/INT/CHA). `rare` picks which of the
  139|     /// two economy variants this is: rare-cheap (25g, ~6% of visits) or common-expensive
  140|     /// (240g, ~55% of visits). The primary is named as a string so `shop.rs` does not depend on
  141|     /// a `stats::Primary` type that does not exist yet.
  142|     Stat { stat: String, is_rare: bool },
  143| }
  144| 
  145| impl Potion {
  146|     /// Price for this potion (fixed, no CHA discount).
  147|     pub fn price(&self) -> u32 {
  148|         match self {
  149|             Potion::Hp => PRICE_HP_POTION,
  150|             Potion::Mp => PRICE_MP_POTION,
  151|             Potion::Buff { .. } => PRICE_BUFF_POTION,
  152|             Potion::Stat { is_rar

src/core/shop.rs: 595 lines, showing 299-428
  299|     }
  300| }
  301| 
  302| /// Why a purchase was refused.
  303| #[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
  304| pub enum BuyError {
  305|     /// Not enough gold — nothing changed.
  306|     NotEnoughGold { price: u32, gold: u32 },
  307|     /// No such offer.
  308|     NoSuchOffer,
  309| }
  310| 
  311| #[cfg(test)]
  312| mod tests {
  313|     use super::*;
  314|     use crate::core::rng::Rng;
  315| 
  316|     fn gen(level: u32, tier: u32, cha: u32, visit: u32, seed: u64) -> Shop {
  317|         let mut rng = Rng::new(seed);
  318|         Shop::generate(level, tier, cha, visit, &mut rng)
  319|     }
  320| 
  321|     /// Stock is exactly `STOCK_SLOTS` pieces of gear and restocks differently on every visit.
  322|     #[test]
  323|     fn stock_has_fixed_size_and_restocks_each_visit() {
  324|         let a = gen(5, 2, 16, 1, 0xAB);
  325|         let b = gen(5, 2, 16, 2, 0xAB);
  326|         assert_eq!(a.gear().len(), STOCK_SLOTS);
  327|         assert_eq!(b.gear().len(), STOCK_SLOTS);
  328|         assert_ne!(
  329|             a.gear().iter().map(|&i| format!("{:?}", a.stock[i])).collect::<Vec<_>>(),
  330|             b.gear().iter().map(|&i| format!("{:?}", b.stock[i])).collect::<Vec<_>>(),
  331|             "two visits from the same seed must not restock identical shelves"
  332|         );
  333|     }
  334| 
  335|     /// Item power grows with player level and w

src/core/shop.rs: 595 lines, showing 428-595
  428|                         rare += 1;
  429|                     } else {
  430|                         common += 1;
  431|                     }
  432|                 }
  433|             }
  434|         }
  435|         let c = common as f32 / SAMPLES as f32;
  436|         let r = rare as f32 / SAMPLES as f32;
  437|         assert!(
  438|             (c - STAT_POTION_COMMON_RATE).abs() < 0.10,
  439|             "common stat-potion rate {c:.3} far from {STAT_POTION_COMMON_RATE}"
  440|         );
  441|         assert!(
  442|             (r - STAT_POTION_RARE_RATE).abs() < 0.05,
  443|             "rare stat-potion rate {r:.3} far from {STAT_POTION_RARE_RATE}"
  444|         );
  445|         assert!(common > rare * 4, "the expensive kind must be the common one");
  446|     }
  447| 
  448|     /// Same inputs, same shop — byte-identical, twice.
  449|     #[test]
  450|     fn generation_is_deterministic() {
  451|         assert_eq!(format!("{:?}", gen(12, 3, 17, 4, 0x777)), format!("{:?}", gen(12, 3, 17, 4, 0x777)));
  452|     }
  453| 
  454|     fn power_of(offer: &Offer) -> u32 {
  455|         let _ = offer;
  456|         todo!()
  457|     }
  458| }
  459| // ---------------------------------------------------------------------------
  460| // Generation helpers — the item / potion tables. Consumed by `Shop::generate`.
  461| // ---------------------------------------------------------------------------
  4

edited src/core/shop.rs: -153 +588 chars; file is now 606 lines

edited src/core/shop.rs: -114 +347 chars; file is now 612 lines

edited src/core/shop.rs: -247 +1166 chars; file is now 639 lines

edited src/core/shop.rs: -82 +166 chars; file is now 641 lines

exit=1
error: unexpected argument '2>&1' found

Usage: cargo test [OPTIONS] [TESTNAME] [-- [ARGS]...]

For more information, try '--help'.

exit=101
running 8 tests
test core::shop::tests::generation_is_deterministic ... ok
test core::shop::tests::cannot_buy_without_gold ... ok
test core::shop::tests::buying_pays_the_discounted_price ... ok
test core::shop::tests::selling_returns_half_paid_price ... ok
test core::shop::tests::cha_discounts_gear_but_not_potions ... ok
test core::shop::tests::stock_has_fixed_size_and_restocks_each_visit ... FAILED
test core::shop::tests::item_power_grows_with_level_and_tier ... FAILED
test core::shop::tests::stat_potion_kinds_match_documented_probabilities ... ok

failures:

---- core::shop::tests::stock_has_fixed_size_and_restocks_each_visit stdout ----

thread 'core::shop::tests::stock_has_fixed_size_and_restocks_each_visit' (1843497) panicked at src/core/shop.rs:372:9:
assertion `left != right` failed: two visits from the same seed must not restock identical shelves
  left: ["Gear { item: Item { name: \"Iron Plate-7\", slot: Armor, power: 7, affixes: [], price: 194, base_def: 2.1000001 }, paid_price: 176 }", "Gear { item: Item { name: \"Iron Brand-7\", slot: Weapon, power: 7, affixes: [], price: 194, base_def: 0.0 }, paid_price: 176 }", "Gear { item: Item { name: \"Iron Fang-7\", slot: Weapon, power: 7, affixes: [Affix { label: \"Phys dmg\", stat: PhysicalAttack, value: 5.0 }, Affix { label: \"Magic dmg\", stat: MagicAttack, value: 5.7 }, Affix { label: \"Magic dmg\", stat: MagicAttack, value: 3.8 }], price: 244, base_def: 0.0 }, paid_price: 221 }", "Gear { item: Item { name: \"

edited src/core/shop.rs: -288 +467 chars; file is now 643 lines

src/core/rng.rs: 108 lines, showing 1-80
    1| //! Seeded deterministic randomness. The ONLY source of randomness in the game.
    2| //!
    3| //! Every combat roll, shop restock and event draw goes through [`Rng`], which wraps a
    4| //! `rand_chacha::ChaCha8Rng` seeded from the active save slot (or a fixed seed in tests) so
    5| //! that replays and tests are bit-identical.
    6| 
    7| use rand::RngCore;
    8| use rand::SeedableRng;
    9| 
   10| /// Fixed seed used by the balance table and every deterministic test.
   11| pub const BALANCE_SEED: u64 = 0x5B4E_3F12_3456_78AB;
   12| 
   13| /// Deterministic PRNG handle passed explicitly through core code.
   14| /// The stream is intentionally NOT serialised: saves persist the `seed` and rebuild the
   15| /// generator, so a loaded game replays deterministically from the same seed.
   16| #[derive(Debug, Clone)]
   17| pub struct Rng {
   18|     inner: rand_chacha::ChaCha8Rng,
   19| }
   20| 
   21| impl Default for Rng {
   22|     fn default() -> Self {
   23|         Self::new(BALANCE_SEED)
   24|     }
   25| }
   26| 
   27| impl Rng {
   28|     /// Seed from any u64 (save slots use their slot index mixed with the creation time).
   29|     pub fn new(seed: u64) -> Self {
   30|         Self {
   31|             inner: rand_chacha::ChaCha8Rng::seed_from_u64(seed),
   32|         }
   33|     }
   34| 
   35|     /// Raw u32 draw.
   36|     #[inline]
   37|     pub fn next_u32(&mut self) -> u32 {
   38|

edited src/core/rng.rs: -637 +1836 chars; file is now 136 lines

appended 459 chars to src/core/rng.rs; file is now 148 lines

edited src/core/shop.rs: -479 +627 chars; file is now 645 lines

exit=101
Compiling emberfall v0.1.0 (/home/zerc/rpgbench/game)
error[E0061]: this function takes 1 argument but 2 arguments were supplied
   --> src/core/rng.rs:49:19
    |
 49 |         Self::new(splitmix(self.seed, mix))
    |                   ^^^^^^^^            --- unexpected argument #2 of type `u64`
    |
note: function defined here
   --> src/core/rng.rs:139:8
    |
139 | pub fn splitmix(state: u64) -> u64 {
    |        ^^^^^^^^
help: remove the extra argument
    |
 49 -         Self::new(splitmix(self.seed, mix))
 49 +         Self::new(splitmix(self.seed))
    |

error[E0061]: this function takes 1 argument but 2 arguments were supplied
   --> src/core/rng.rs:57:15
    |
 57 |         mix = splitmix(mix, level as u64);
    |               ^^^^^^^^      ------------ unexpected argument #2 of type `u64`
    |
note: function defined here
   --> src/core/rng.rs:139:8
    |
139 | pub fn splitmix(state: u64) -> u64 {
    |        ^^^^^^^^
help: remove the extra argument
    |
 57 -         mix = splitmix(mix, level as u64);
 57 +         mix = splitmix(mix);
    |

error[E0061]: this function takes 1 argument but 2 arguments were supplied
   --> src/core/rng.rs:58:15
    |
 58 |         mix = splitmix(mix, tier as u64);
    |               ^^^^^^^^      ----------- unexpected argument #2 of type `u64`
    |
note: function defined here
   --> src/core/rng.rs:139:8
    |
139 | pub fn splitmix(state: u64) -> u64 {
    |        ^^^^^^^^
help: remove the extra argument
    |

edited src/core/rng.rs: -320 +359 chars; file is now 149 lines

ERROR: `old` occurs 0 times in src/core/shop.rs (must be exactly 1)

edited src/core/shop.rs: -121 +121 chars; file is now 645 lines

edited src/core/shop.rs: -406 +485 chars; file is now 649 lines

edited src/core/shop.rs: -698 +625 chars; file is now 645 lines

exit=101
Compiling emberfall v0.1.0 (/home/zerc/rpgbench/game)
error[E0308]: mismatched types
   --> src/core/shop.rs:206:49
    |
206 |             let power = roll_power(level, tier, rng);
    |                         ----------              ^^^ expected `&mut Rng`, found `Rng`
    |                         |
    |                         arguments to this function are incorrect
    |
note: function defined here
   --> src/core/shop.rs:533:4
    |
533 | fn roll_power(level: u32, tier: u32, rng: &mut Rng) -> u32 {
    |    ^^^^^^^^^^                        -------------
help: consider mutably borrowing here
    |
206 |             let power = roll_power(level, tier, &mut rng);
    |                                                 ++++

error[E0308]: mismatched types
   --> src/core/shop.rs:217:55
    |
217 |                 let scale = affix_scale(label, power, rng);
    |                             -----------               ^^^ expected `&mut Rng`, found `Rng`
    |                             |
    |                             arguments to this function are incorrect
    |
note: function defined here
   --> src/core/shop.rs:591:4
    |
591 | fn affix_scale(label: &str, power: u32, rng: &mut Rng) -> f32 {
    |    ^^^^^^^^^^^                          -------------
help: consider mutably borrowing here
    |
217 |                 let scale = affix_scale(label, power, &mut rng);
    |                                                       ++++

error[E0308]: mismatched type

edited src/core/shop.rs: -41 +46 chars; file is now 645 lines

edited src/core/shop.rs: -43 +48 chars; file is now 645 lines

edited src/core/shop.rs: -32 +37 chars; file is now 645 lines

edited src/core/shop.rs: -33 +38 chars; file is now 645 lines

edited src/core/shop.rs: -26 +31 chars; file is now 645 lines

exit=101
running 8 tests
test core::shop::tests::cannot_buy_without_gold ... ok
test core::shop::tests::buying_pays_the_discounted_price ... ok
test core::shop::tests::selling_returns_half_paid_price ... ok
test core::shop::tests::generation_is_deterministic ... ok
test core::shop::tests::stock_has_fixed_size_and_restocks_each_visit ... ok
test core::shop::tests::cha_discounts_gear_but_not_potions ... FAILED
test core::shop::tests::item_power_grows_with_level_and_tier ... ok
test core::shop::tests::stat_potion_kinds_match_documented_probabilities ... ok

failures:

---- core::shop::tests::cha_discounts_gear_but_not_potions stdout ----

thread 'core::shop::tests::cha_discounts_gear_but_not_potions' (1852977) panicked at src/core/shop.rs:408:13:
a CHA-20 hero paid more than a CHA-8 hero for the same gear
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace


failures:
    core::shop::tests::cha_discounts_gear_but_not_potions

test result: FAILED. 7 passed; 1 failed; 0 ignored; 0 measured; 36 filtered out; finished in 0.02s


   Compiling emberfall v0.1.0 (/home/zerc/rpgbench/game)
    Finished `test` profile [unoptimized + debuginfo] target(s) in 0.96s
     Running unittests src/main.rs (/home/zerc/rpgbench/target/debug/deps/emberfall-97c9a580c445fc95)
error: test failed, to rerun pass `--bin emberfall`

exit=101
running 44 tests
test core::balance::tests::boss_scales_above_mobs_and_price_grows_superlinear ... ok
test core::balance::tests::cha_discount_reduces_price_and_caps ... ok
test core::battle::tests::companion_effect_applies_then_expires ... ok
test core::battle::tests::evasion_and_crit_are_bounded ... ok
test core::battle::tests::damage_is_at_least_one_and_decreases_with_defence ... ok
test core::battle::tests::wave1_enemy_dies_to_level1_hero_of_every_class ... ok
test core::events::tests::events_only_roll_on_the_interval ... ok
test core::events::tests::companion_leaves_after_2_to_3_turns ... ok
test core::battle::tests::same_seed_replays_identical_battle_log ... ok
test core::events::tests::event_rolls_are_deterministic ... ok
test core::battle::tests::four_locations_each_with_3_mobs_and_a_boss ... ok
test core::battle::tests::auto_potion_rules_trigger ... ok
test core::battle::tests::turn_order_follows_speed ... ok
test core::battle::tests::different_seeds_diverge ... FAILED
test core::battle::tests::every_location_boss_is_bearable_at_reference_levels ... FAILED
test core::events::tests::stranger_joins_iff_cha_meets_threshold ... ok
test core::events::tests::stranger_table_matches_documented_thresholds ... ok
test core::battle::tests::respawn_keeps_90_percent_of_gold ... ok
test core::events::tests::gold_bonus_applies_only_while_following ... ok
test core::save::tests::slot_keys_are_distinct_and_index_pure ... ok
test core::save::tests::empty_slot_is_not_a_run ... 

src/core/shop.rs: 645 lines, showing 360-429
  360|     use crate::core::rng::Rng;
  361| 
  362|     fn gen(level: u32, tier: u32, cha: u32, visit: u32, seed: u64) -> Shop {
  363|         let mut rng = Rng::new(seed);
  364|         Shop::generate(level, tier, cha, visit, &mut rng)
  365|     }
  366| 
  367|     /// Stock is exactly `STOCK_SLOTS` pieces of gear and restocks differently on every visit.
  368|     #[test]
  369|     fn stock_has_fixed_size_and_restocks_each_visit() {
  370|         let a = gen(5, 2, 16, 1, 0xAB);
  371|         let b = gen(5, 2, 16, 2, 0xAB);
  372|         assert_eq!(a.gear().len(), STOCK_SLOTS);
  373|         assert_eq!(b.gear().len(), STOCK_SLOTS);
  374|         assert_ne!(
  375|             a.gear().iter().map(|&i| format!("{:?}", a.stock[i])).collect::<Vec<_>>(),
  376|             b.gear().iter().map(|&i| format!("{:?}", b.stock[i])).collect::<Vec<_>>(),
  377|             "two visits from the same seed must not restock identical shelves"
  378|         );
  379|     }
  380| 
  381|     /// Item power grows with player level and with location tier — monotonic in expectation over
  382|     /// a seeded 40-sample sweep.
  383|     #[test]
  384|     fn item_power_grows_with_level_and_tier() {
  385|         let mean_power = |level: u32, tier: u32| -> f32 {
  386|             let mut sum = 0u32;
  387|             for s in 0..40u64 {
  388|                 let shop = gen(level, tier, 15, 1, 0x5EED ^ s);
  389|                 sum += 

src/core/shop.rs: 645 lines, showing 1-130
    1| //! Weapon/armor generation with power growth, potions, pricing, buying and selling.
    2| //!
    3| //! Pricing and the CHA discount are *not* recomputed here — they are the single-source functions
    4| //! in `core::balance` (`item_price`, `price_after_cha`, `cha_discount`). This module decides what
    5| //! the shop contains and who may take it.
    6| //!
    7| //! Determinism: every draw comes from the `Rng` passed to [`Shop::generate`], and `visit` is
    8| //! mixed into the stream, so two visits never restock identical shelves while the same
    9| //! `(level, tier, cha, visit)` always replays byte-identically.
   10| //!
   11| //! Pricing and the CHA discount are *not* recomputed here — they are the single-source functions
   12| //! in `core::balance` (`item_price`, `price_after_cha`, `cha_discount`). This module decides what
   13| //! the shop contains and who may take it.
   14| 
   15| use serde::{Deserialize, Serialize};
   16| 
   17| use crate::core::balance::{item_price, price_after_cha};
   18| use crate::core::rng::Rng;
   19| 
   20| /// Slots of generated gear offered per visit. Restocks on every visit.
   21| pub const STOCK_SLOTS: usize = 6;
   22| 
   23| /// Minimum and maximum affixes a generated item can carry (docs/mechanics.md §6).
   24| pub const AFFIX_MIN: u32 = 0;
   25| pub const AFFIX_MAX: u32 = 3;
   26| 
   27| /// Gold returned on a sale, as a fraction of the price actually paid

src/core/shop.rs: 645 lines, showing 150-289
  150|             Potion::Mp => PRICE_MP_POTION,
  151|             Potion::Buff { .. } => PRICE_BUFF_POTION,
  152|             Potion::Stat { is_rare, .. } => {
  153|                 if *is_rare {
  154|                     PRICE_STAT_POTION_RARE
  155|                 } else {
  156|                     PRICE_STAT_POTION_COMMON
  157|                 }
  158|             }
  159|         }
  160|     }
  161| }
  162| 
  163| /// HP-potion restore fraction; MP-potion restore fraction; buff duration in turns.
  164| pub const BUFF_TURNS: u32 = 6;
  165| 
  166| /// One thing on sale: gear or a potion, with the price *already* discounted by the visitor's CHA
  167| /// (potions keep their sticker price).
  168| #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
  169| pub enum Offer {
  170|     Gear { item: Item, paid_price: u32 },
  171|     Potion { potion: Potion, price: u32 },
  172| }
  173| 
  174| /// The whole shop as presented on a visit.
  175| #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
  176| pub struct Shop {
  177|     /// Generated gear: exactly `STOCK_SLOTS` entries, power growing with the visit.
  178|     pub stock: Vec<Offer>,
  179|     /// The level and location tier the stock was generated for.
  180|     pub level: u32,
  181|     pub tier: u32,
  182|     /// Visitor's CHA at generation time (drives the discount baked into `paid_price`).
  183|     pub cha: u32,
  184|     /// Visi

src/core/rng.rs: 149 lines, showing 1-149
    1| //! Seeded deterministic randomness. The ONLY source of randomness in the game.
    2| //!
    3| //! Every combat roll, shop restock and event draw goes through [`Rng`], which wraps a
    4| //! `rand_chacha::ChaCha8Rng` seeded from the active save slot (or a fixed seed in tests) so
    5| //! that replays and tests are bit-identical.
    6| 
    7| use rand::RngCore;
    8| use rand::SeedableRng;
    9| 
   10| /// Fixed seed used by the balance table and every deterministic test.
   11| pub const BALANCE_SEED: u64 = 0x5B4E_3F12_3456_78AB;
   12| 
   13| /// Deterministic PRNG handle passed explicitly through core code.
   14| /// The stream is intentionally NOT serialised: saves persist the `seed` and rebuild the
   15| /// generator, so a loaded game replays deterministically from the same seed.
   16| #[derive(Debug, Clone)]
   17| pub struct Rng {
   18|     inner: rand_chacha::ChaCha8Rng,
   19|     /// The seed this handle was built from, so consumers can fork a child stream from it.
   20|     seed: u64,
   21| }
   22| 
   23| impl Default for Rng {
   24|     fn default() -> Self {
   25|         Self::new(BALANCE_SEED)
   26|     }
   27| }
   28| 
   29| impl Rng {
   30|     /// Seed from any u64 (save slots use their slot index mixed with the creation time).
   31|     pub fn new(seed: u64) -> Self {
   32|         Self {
   33|             inner: rand_chacha::ChaCha8Rng::seed_from_u64(seed),
   34|             s

edited src/core/rng.rs: -540 +860 chars; file is now 153 lines

edited src/core/shop.rs: -537 +834 chars; file is now 649 lines

edited src/core/shop.rs: -625 +784 chars; file is now 651 lines

edited src/core/shop.rs: -114 +136 chars; file is now 652 lines

exit=0
running 8 tests
test core::shop::tests::buying_pays_the_discounted_price ... ok
test core::shop::tests::selling_returns_half_paid_price ... ok
test core::shop::tests::cha_discounts_gear_but_not_potions ... ok
test core::shop::tests::cannot_buy_without_gold ... ok
test core::shop::tests::generation_is_deterministic ... ok
test core::shop::tests::stock_has_fixed_size_and_restocks_each_visit ... ok
test core::shop::tests::item_power_grows_with_level_and_tier ... ok
test core::shop::tests::stat_potion_kinds_match_documented_probabilities ... ok

test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 36 filtered out; finished in 0.02s


   Compiling emberfall v0.1.0 (/home/zerc/rpgbench/game)
    Finished `test` profile [unoptimized + debuginfo] target(s) in 1.14s
     Running unittests src/main.rs (/home/zerc/rpgbench/target/debug/deps/emberfall-97c9a580c445fc95)

src/core/battle.rs: 1037 lines, showing 890-999
  890| 
  891|     #[test]
  892|     fn turn_order_follows_speed() {
  893|         let mut rng = Rng::new(crate::core::rng::BALANCE_SEED);
  894|         let c = hero(Class::Archer, 1);
  895|         let st = BattleState::new_battle(&c, 0.0, 0.0, 0, false, 1, (0, 0, 0), vec![], &mut rng);
  896|         let order = st.initiative();
  897|         assert!(order.len() >= 2);
  898|         let speeds: Vec<f32> = order.iter().map(|&i| st.combatants[i].speed()).collect();
  899|         for w in speeds.windows(2) {
  900|             assert!(w[0] >= w[1] - 1e-6, "initiative not sorted by speed: {speeds:?}");
  901|         }
  902|     }
  903| 
  904|     #[test]
  905|     fn wave1_enemy_dies_to_level1_hero_of_every_class() {
  906|         for class in Class::all() {
  907|             let mut rng = Rng::new(crate::core::rng::BALANCE_SEED ^ (class as u64));
  908|             let c = hero(class, 1);
  909|             let mut st = BattleState::new_battle(&c, 0.0, 0.0, 0, false, 1, (0, 0, 0), vec![], &mut rng);
  910|             let out = st.run_to_completion(&mut rng);
  911|             assert!(
  912|                 out.cleared && !out.hero_died && out.turns <= N_TURNS_CLEAR,
  913|                 "{class:?} failed to clear wave 1: {out:?}"
  914|             );
  915|         }
  916|     }
  917| 
  918|     #[test]
  919|     fn every_location_boss_is_bearable_at_reference_levels() {
  920|         let refs: [(Class, u

src/core/battle.rs: 1037 lines, showing 1008-1037
 1008|         assert_eq!(run(0x1234), run(0x1234));
 1009|     }
 1010| 
 1011|     #[test]
 1012|     fn different_seeds_diverge() {
 1013|         let run = |seed: u64| {
 1014|             let mut rng = Rng::new(seed);
 1015|             let c = hero(Class::Archer, 10);
 1016|             let mut st =
 1017|                 BattleState::new_battle(&c, 6.0, 4.0, 1, true, 1, (3, 3, 1), vec![], &mut rng);
 1018|             st.run_to_completion(&mut rng).turns
 1019|         };
 1020|         assert_ne!(run(11), run(12));
 1021|     }
 1022| }
 1023| 
 1024| /// Resolve a hero death: full HP, `round(0.10 * gold)` lost, no item or level loss.
 1025| /// Returns the gold lost.
 1026| pub fn apply_death(player: &mut Character, gold: &mut u32) -> u32 {
 1027|     let _ = player;
 1028|     let lost = (*gold as f32 * DEATH_GOLD_RATE).round() as u32;
 1029|     *gold = gold.saturating_sub(lost);
 1030|     lost
 1031| }
 1032| 
 1033| /// Where a respawned hero re-enters: the current location's entrance.
 1034| pub fn respawn_at_entrance(state: &BattleState, player: &mut Character) -> usize {
 1035|     let _ = player;
 1036|     state.location
 1037| }

exit=1
error: unexpected argument '--nocapture' found

  tip: a similar argument exists: '--features'
  tip: to pass '--nocapture' as a value, use '-- --nocapture'

Usage: cargo test --features <FEATURES> <TESTNAME> [-- [ARGS]...]

For more information, try '--help'.

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src/core/battle.rs: 1037 lines, showing 1-60
    1| //! Turn-based idle battle: combatants, enemies, locations, turn order, auto-potions,
    2| //! death/respawn and companion effects.
    3| //!
    4| //! All randomness comes from `core::rng::Rng`. No other entropy source.
    5| //! Stat math lives in `core::stats`; enemy scaling, boss multipliers and pricing live in
    6| //! `core::balance`. This module orchestrates them, it never re-derives them.
    7| 
    8| use serde::{Deserialize, Serialize};
    9| 
   10| use crate::core::rng::Rng;
   11| use crate::core::stats::{damage_formula, Character, Derived};
   12| 
   13| /// Hard stop for a single fight, mirroring the balance harness.
   14| pub const MAX_TURNS: u32 = 400;
   15| /// A fight that stays inside this many turns is "clearable" (the test contract).
   16| pub const N_TURNS_CLEAR: u32 = 60;
   17| /// HP fraction below which the auto-potion rule drinks an HP potion.
   18| pub const HP_POTION_THRESHOLD: f32 = 0.35;
   19| /// Fraction of `max_hp` an HP potion restores.
   20| pub const HP_POTION_RESTORE: f32 = 0.45;
   21| /// Fraction of `max_mp` an MP potion restores.
   22| pub const MP_POTION_RESTORE: f32 = 0.50;
   23| /// A buff potion's +25% on one derived stat, lasting `BUFF_TURNS` turns.
   24| pu

ERROR: only these cargo subcommands are allowed: ['build', 'check', 'clippy', 'fmt', 'metadata', 'run', 'test', 'tree']

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src/core/battle.rs: 1037 lines, showing 560-619
  560|         let hp_left = self.hero_hp_frac();
  561|         BattleOutcome {
  562|             turns: self.turn,
  563|             cleared,
  564|             hero_died: self.hero_dead,
  565|             hp_left,
  566|             gold_earned: self.gold_earned,
  567|             log: acc,
  568|         }
  569|     }
  570| 
  571|     /// The initiative order (indices into `combatants`).
  572|     pub fn initiative(&self) -> Vec<usize> {
  573|         let mut idx: Vec<usize> = (0..self.combatants.len()).collect();
  574|         idx.sort_by(|&a, &b| {
  575|             let sa = self.combatants[a].speed();
  576|             let sb = self.combatants[b].speed();
  577|             let da = matches!(self.combatants[a], Combatant::Enemy { hp, .. } if hp <= 0.0);
  578|             let db = matches!(self.combatants[b], Combatant::Enemy { hp, .. } if hp <= 0.0);
  579|             db.cmp(&da).then(
  580|                 sb.partial_cmp(&sa)
  581|                     .unwrap_or(std::cmp::Ordering::Equal)
  582|                     .then(a.cmp(&b)),
  583|             )
  584|         });
  585|         idx
  586|     }
  587| 
  588|     /// Count events in the log matching `pred`.
  589|     pub fn out_log<F: Fn(&Battl

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src/core/battle.rs: 1037 lines, showing 495-554
  495|                     let mut d = damage_formula(power, self.combatants[target].def_of());
  496|                     // §3: per-hit variance in [0.9, 1.1] — the reason two seeds can differ.
  497|                     d *= rng.range_f32(0.9, 1.1);
  498|                     let crit = rng.chance(derived.crit_chance);
  499|                     if crit {
  500|                         d *= derived.crit_mult;
  501|                     }
  502|                     (evaded, crit, d)
  503|                 };
  504| 
  505|                 if evaded {
  506|                     events.push(BattleEvent::Miss {
  507|                         attacker: self.combatants[actor].name().to_string(),
  508|                         target: self.combatants[target].name().to_string(),
  509|                     });
  510|                 } else {
  511|                     events.push(BattleEvent::Attack {
  512|                         attacker: self.combatants[actor].name().to_string(),
  513|                         target: self.combatants[target].name().to_string(),
  514|                         damage: dmg,
  515|                         crit,
  516|                     });
  517|                     self.damage_target(target, dmg, 

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src/core/battle.rs: 1037 lines, showing 430-489
  430|         // Spawn the next pending wave once the previous front has fallen.
  431|         if !self.is_boss && !self.pending.is_empty() && self.pending_alive == 0 {
  432|             let entry = self.pending.remove(0);
  433|             let scale = crate::core::balance::scale(self.current_level(), self.current_tier());
  434|             self.combatants.push(Combatant::Enemy {
  435|                 name: entry.name.to_string(),
  436|                 kind: EnemyKind::Mob,
  437|                 hp: entry.hp * scale,
  438|                 max_hp: entry.hp * scale,
  439|                 atk: entry.atk * scale,
  440|                 def: entry.def * scale,
  441|                 speed: 1.0,
  442|                 evad: 0.0,
  443|             });
  444|             self.pending_alive = 1;
  445|             self.order = self.initiative();
  446|         }
  447| 
  448|         let mut events: Vec<BattleEvent> = Vec::new();
  449| 
  450|         let cursor = (self.turn as usize - 1) % self.order.len().max(1);
  451|         let actor = match self.order.get(cursor).copied() {
  452|             Some(i) => i,
  453|             None => return Step { events: Vec::new(), done: true },
  454|         };
  455| 
  456|    

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src/core/battle.rs: 1037 lines, showing 375-429
  375|                     name: entry.name.to_string(),
  376|                     kind: EnemyKind::Mob,
  377|                     hp: entry.hp,
  378|                     max_hp: entry.hp,
  379|                     atk: entry.atk,
  380|                     def: entry.def,
  381|                     speed: 1.0,
  382|                     evad: 0.0,
  383|                 });
  384|             }
  385|             if !pending.is_empty() {
  386|                 pending.remove(0);
  387|             }
  388|         }
  389| 
  390|         for c in companions {
  391|             combatants.push(Combatant::Companion {
  392|                 name: c.name,
  393|                 turns_left: c.turns_left,
  394|                 effect: c.effect,
  395|             });
  396|         }
  397| 
  398|         let mut state = BattleState {
  399|             location,
  400|             is_boss: boss,
  401|             order: Vec::new(),
  402|             combatants,
  403|             turn: 0,
  404|             gold_earned: 0,
  405|             potions_used: 0,
  406|             hero_dead: false,
  407|             log: Vec::new(),
  408|             pending_waves: if boss { 0 } else { waves.max(1) },
  409|             pe

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src/core/battle.rs: 1037 lines, showing 330-379
  330|         gear_atk: f32,
  331|         gear_def: f32,
  332|         location: usize,
  333|         boss: bool,
  334|         waves: u32,
  335|         potion_inventory: (u32, u32, u32),
  336|         companions: Vec<crate::core::events::Companion>,
  337|         rng: &mut Rng,
  338|     ) -> Self {
  339|         let loc = crate::core::battle::location(location);
  340|         let level = player.level.max(1);
  341| 
  342|         let derived = Derived::with_gear(player, gear_def, gear_atk);
  343|         let hero = Combatant::Hero {
  344|             name: player.class.name().to_string(),
  345|             character: player.clone(),
  346|             derived,
  347|         };
  348| 
  349|         let mut combatants: Vec<Combatant> = vec![hero];
  350|         let mut pending: Vec<MobEntry> = Vec::new();
  351| 
  352|         if boss {
  353|             let b = crate::core::balance::boss_at(level, location);
  354|             combatants.push(Combatant::Enemy {
  355|                 name: b.name.to_string(),
  356|                 kind: EnemyKind::Boss,
  357|                 hp: b.hp,
  358|                 max_hp: b.hp,
  359|                 atk: b.atk,
  360|                 def: b.def,
  361|     

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src/core/battle.rs: 1037 lines, showing 282-331
  282| }
  283| 
  284| /// The live fight. Owned by `save::Player::battle` and driven by the UI timer.
  285| #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
  286| pub struct BattleState {
  287|     /// Current location index (0..4).
  288|     pub location: usize,
  289|     /// True for the location's boss fight.
  290|     pub is_boss: bool,
  291|     /// Initiative order: indices into `combatants`, sorted descending by speed, stable.
  292|     pub order: Vec<usize>,
  293|     /// All combatants. `order` indexes into this.
  294|     pub combatants: Vec<Combatant>,
  295|     /// Turn counter, 1-based once the first step runs.
  296|     pub turn: u32,
  297|     /// Gold accumulated this fight.
  298|     pub gold_earned: u32,
  299|     /// The auto-potion rules fired this fight.
  300|     pub potions_used: u32,
  301|     /// Set once the hero hits 0 HP.
  302|     pub hero_dead: bool,
  303|     /// Derived log for the current fight; embedded in `BattleOutcome::log`.
  304|     pub log: Vec<BattleEvent>,
  305|     /// `waves` still to fall for `cleared`.
  306|     pub pending_waves: u32,
  307|     /// Remaining live enemies from `pending_waves`.
  308|     pub pending_alive: u32,
  309|     /// Tota

edited src/core/battle.rs: -87 +853 chars; file is now 1048 lines

edited src/core/battle.rs: -53 +482 chars; file is now 1057 lines

ERROR: `old` occurs 0 times in src/core/battle.rs (must be exactly 1)

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src/core/battle.rs: 1057 lines, showing 492-509
  492|                         derived.mp_pool = (derived.mp_pool - cost).max(0.0);
  493|                     }
  494|                 }
  495| 
  496|                 let target = match self.pick_enemy_target() {
  497|                     Some(t) => t,
  498|                     None => {
  499|                         events.push(BattleEvent::Miss {
  500|                             attacker: self.combatants[actor].name().to_string(),
  501|                             target: "empty field".into(),
  502|                         });
  503|                         return self.settle(events);
  504|                     }
  505|                 };
  506| 
  507|                 let evad = self.combatants[target].evad_of();
  508|                 let (evaded, crit, dmg) = {
  509|                     let hero = &self.combatants[actor];

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src/core/battle.rs: 1057 lines, showing 507-522
  507|                 let evad = self.combatants[target].evad_of();
  508|                 let (evaded, crit, dmg) = {
  509|                     let hero = &self.combatants[actor];
  510|                     let Combatant::Hero { character, derived, .. } = hero else {
  511|                         unreachable!("target resolved to a non-hero actor")
  512|                     };
  513|                     let _ = character;
  514|                     let evaded = rng.chance(evad);
  515|                     let mut d = damage_formula(power, self.combatants[target].def_of());
  516|                     // §3: per-hit variance in [0.9, 1.1] — the reason two seeds can differ.
  517|                     d *= rng.range_f32(0.9, 1.1);
  518|                     let crit = rng.chance(derived.crit_chance);
  519|                     if crit {
  520|                         d *= derived.crit_mult;
  521|                     }
  522|                     (evaded, crit, d)

edited src/core/battle.rs: -326 +504 chars; file is now 1059 lines

exit=101
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
error[E0369]: binary operation `==` cannot be applied to type `rng::Rng`
   --> src/core/battle.rs:333:5
    |
285 | #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
    |                        --------- in this derive macro expansion
...
333 |     pub fx_rng: Rng,
    |     ^^^^^^^^^^^^^^^
    |
note: an implementation of `PartialEq` might be missing for `rng::Rng`
   --> src/core/rng.rs:17:1
    |
 17 | pub struct Rng {
    | ^^^^^^^^^^^^^^ must implement `PartialEq`
help: consider annotating `rng::Rng` with `#[derive(PartialEq)]`
   --> src/core/rng.rs:17:1
    |
 17 + #[derive(PartialEq)]
 18 | pub struct Rng {
    |

error[E0277]: the trait bound `rng::Rng: serde::Serialize` is not satisfied
    --> src/core/battle.rs:285:35
     |
 285 | #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
     |                                   ^^^^^^^^^ unsatisfied trait bound
...
 323 |     /// **Per-hit variance stream** — a child of the run's `Rng`, forked once at battle start.
     |     ------------------------------------------------------------------------------------------ required by a bound introduced by this call
     |
help: the trait `Serialize` is not implemented for `rng::Rng`
    --> src/core/rng.rs:17:1
     |
  17 | pub struct Rng {
     | ^^^^^^^^^^^^^^
     = note: for local types consider adding `#[derive(serde::Serialize)]` to your `rng::Rng` type
     = note: for types from other cra

edited src/core/battle.rs: -853 +87 chars; file is now 1048 lines

edited src/core/battle.rs: -482 +53 chars; file is now 1039 lines

edited src/core/battle.rs: -504 +326 chars; file is now 1037 lines

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 41/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 0 warnings+errors (exit 0)
dist/ with .wasm present: True

exit=0
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.06s

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 41/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 0
dist/ with .wasm present: True

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 41/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 0 warnings+errors (exit 0)
dist/ with .wasm present: True

src/core/battle.rs: 1037 lines, showing 890-1037
  890| 
  891|     #[test]
  892|     fn turn_order_follows_speed() {
  893|         let mut rng = Rng::new(crate::core::rng::BALANCE_SEED);
  894|         let c = hero(Class::Archer, 1);
  895|         let st = BattleState::new_battle(&c, 0.0, 0.0, 0, false, 1, (0, 0, 0), vec![], &mut rng);
  896|         let order = st.initiative();
  897|         assert!(order.len() >= 2);
  898|         let speeds: Vec<f32> = order.iter().map(|&i| st.combatants[i].speed()).collect();
  899|         for w in speeds.windows(2) {
  900|             assert!(w[0] >= w[1] - 1e-6, "initiative not sorted by speed: {speeds:?}");
  901|         }
  902|     }
  903| 
  904|     #[test]
  905|     fn wave1_enemy_dies_to_level1_hero_of_every_class() {
  906|         for class in Class::all() {
  907|             let mut rng = Rng::new(crate::core::rng::BALANCE_SEED ^ (class as u64));
  908|             let c = hero(class, 1);
  909|             let mut st = BattleState::new_battle(&c, 0.0, 0.0, 0, false, 1, (0, 0, 0), vec![], &mut rng);
  910|             let out = st.run_to_completion(&mut rng);
  911|             assert!(
  912|                 out.cleared && !out.hero_died && out.turns <= N_TURNS_CLEAR,
  913|                 "{class:?} failed to clear wave 1: {out:?}"
  914|             );
  915|         }
  916|     }
  917| 
  918|     #[test]
  919|     fn every_location_boss_is_bearable_at_reference_levels() {
  920|         let refs: [(Class, 

src/core/balance.rs: 412 lines, showing 300-409
  300| pub fn balance_points(rows: &[BalanceRow]) -> Vec<BalancePoint> {
  301|     REFERENCE_LEVELS
  302|         .iter()
  303|         .map(|&level| {
  304|             let at: Vec<&BalanceRow> = rows.iter().filter(|r| r.level == level).collect();
  305|             let get = |pick: usize| -> f32 {
  306|                 match pick {
  307|                     0 => at.iter().map(|r| r.ttk).sum::<f32>() / 3.0,
  308|                     _ => at.iter().map(|r| r.hp_left).sum::<f32>() / 3.0,
  309|                 }
  310|             };
  311|             BalancePoint {
  312|                 level,
  313|                 ttk: [
  314|                     at.get(0).map(|r| r.ttk).unwrap_or_else(|| get(0)),
  315|                     at.get(1).map(|r| r.ttk).unwrap_or_else(|| get(0)),
  316|                     at.get(2).map(|r| r.ttk).unwrap_or_else(|| get(0)),
  317|                 ],
  318|                 hp_left: [
  319|                     at.get(0).map(|r| r.hp_left).unwrap_or_else(|| get(1)),
  320|                     at.get(1).map(|r| r.hp_left).unwrap_or_else(|| get(1)),
  321|                     at.get(2).map(|r| r.hp_left).unwrap_or_else(|| get(1)),
  322|                 ],
  323|             }
  324|         })
  325|         .collect()
  326| }
  327| 
  328| /// Human-readable table for `cargo run`.
  329| pub fn format_table(rows: &[BalanceRow], points: &[BalancePoint]) -> String {
  330|     use std::fmt:

exit=1
error: unexpected argument 'every_location_boss' found

Usage: cargo test [OPTIONS] [TESTNAME] [-- [ARGS]...]

For more information, try '--help'.

exit=1
error: unexpected argument '2>&1' found

Usage: cargo test [OPTIONS] [TESTNAME] [-- [ARGS]...]

For more information, try '--help'.

exit=101
running 1 test
test core::balance::tests::balance_table_within_10_percent ... FAILED

failures:

---- core::balance::tests::balance_table_within_10_percent stdout ----

thread 'core::balance::tests::balance_table_within_10_percent' (1880094) panicked at src/core/balance.rs:372:13:
Archer died against Ember Warden at level 1
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace


failures:
    core::balance::tests::balance_table_within_10_percent

test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 43 filtered out; finished in 0.01s


    Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
     Running unittests src/main.rs (/home/zerc/rpgbench/target/debug/deps/emberfall-97c9a580c445fc95)
error: test failed, to rerun pass `--bin emberfall`
error: 1 target failed:
    `--bin emberfall`

src/core/balance.rs: 412 lines, showing 180-299
  180|         power = candidate;
  181|     }
  182|     (power, spent)
  183| }
  184| 
  185| /// Simulate the boss fight for one class at one reference level. Returns `(ttk, hp_left, survived)`.
  186| fn simulate(ch: &Character, gear_atk: f32, gear_def: f32, boss: &Boss, rng: &mut Rng) -> (f32, f32, bool) {
  187|     let mut d: Derived = Derived::with_gear(ch, gear_def, gear_atk);
  188|     let mut boss_hp = boss.hp;
  189|     let mut turn = 0u32;
  190| 
  191|     while boss_hp > 0.0 && turn < 400 {
  192|         turn += 1;
  193| 
  194|         // --- hero action ---
  195|         let (power, cost) = ch.attack_power(&d);
  196|         if cost > 0.0 {
  197|             d.mp_pool = (d.mp_pool - cost).max(0.0);
  198|         }
  199|         if !rng.chance(d.evad * 0.0) {
  200|             // boss "evade" is folded into the damage roll for simplicity of the harness
  201|             let mut dmg = damage_formula(power, d_def_of(boss));
  202|             if rng.chance(0.12) {
  203|                 dmg *= d.crit_mult;
  204|             }
  205|             boss_hp -= dmg;
  206|         }
  207|         if boss_hp <= 0.0 {
  208|             break;
  209|         }
  210| 
  211|         // --- boss actions: two per round (BOSS double action) ---
  212|         for _ in 0..2 {
  213|             if rng.chance(d.evad) {
  214|                 continue; // hero evades
  215|             }
  216|             d.hp_po

exit=0
EMBERFALL balance table  (tolerance ±10%)
class      lvl  location       boss                pwr   gold      ttk  hp_left
Warrior      1  Ember Fields   Ember Warden          4    220    21.88    0.601
Archer       1  Ember Fields   Ember Warden          4    223    12.88    0.208  DIED
Wizard       1  Ember Fields   Ember Warden          4    233    12.67    0.081  DIED
Warrior     10  Ashen Woods    Ashen Stag            9   1257     2.46    0.000  DIED
Archer      10  Ashen Woods    Ashen Stag            9   1294     2.42    0.000  DIED
Wizard      10  Ashen Woods    Ashen Stag            9   1259     1.25    0.000  DIED
Warrior     25  Cinder Mines   Mine Tyrant          17   5725     1.25    0.000  DIED
Archer      25  Cinder Mines   Mine Tyrant          17   5556     1.08    0.000  DIED
Wizard      25  Cinder Mines   Mine Tyrant          17   5826     1.00    0.000  DIED

per-level spreads (must be <= 0.10)
  level  1: ttk 0.5826  hp_left 1.7520
  level 10: ttk 0.5918  hp_left 0.0000
  level 25: ttk 0.2250  hp_left 0.0000

src/core/balance.rs: 412 lines, showing 1-180
    1| //! Class balance model + the balance table (docs/mechanics.md §5, §9).
    2| //!
    3| //! The graded measure: expected turns-to-kill the current location's boss, and the fraction of
    4| //! max HP left when it dies, at levels 1 / 10 / 25, each with the best gear affordable from a
    5| //! fixed gold budget. The three classes must land within ±10% of each other on both numbers at
    6| //! every reference point, and nobody may die.
    7| 
    8| use serde::{Deserialize, Serialize};
    9| 
   10| use crate::core::rng::{Rng, BALANCE_SEED};
   11| use crate::core::stats::{damage_formula, Class, Character, Derived};
   12| 
   13| /// Reference levels the balance test is evaluated at.
   14| pub const REFERENCE_LEVELS: [u32; 3] = [1, 10, 25];
   15| 
   16| /// Gold budget available at each reference level (paired with REFERENCE_LEVELS).
   17| pub const BUDGETS: [u32; 3] = [260, 1400, 6000];
   18| 
   19| /// Location index per reference level: Ember Fields, Ashen Woods, Cinder Mines.
   20| pub const REFERENCE_LOCATIONS: [usize; 3] = [0, 1, 2];
   21| 
   22| /// Location tier (1..4) per reference level.
   23| pub const REFERENCE_TIERS: [u32; 3] = [1, 2, 3];
   24| 
   25| /// Location display names, index-aligned with `REFERENCE_LOCATIONS`.
   26| pub const LOCATION_NAMES: [&str; 4] = [
   27|     "Ember Fields",
   28|     "Ashen Woods",
   29|     "Cinder Mines",
   30|     "Obsidian Keep",
   31| ];
   32| 
 

src/core/stats.rs: 293 lines, showing 1-200
    1| //! Primary stats, class tables, derived-stat formulas and level-ups.
    2| //! This is the single home of the stat math (see docs/mechanics.md §1-§4).
    3| 
    4| use serde::{Deserialize, Serialize};
    5| 
    6| /// Total primary stat points every class owns at level 1 (per-class budget; 60 each).
    7| pub const PRIMARY_TOTAL: u32 = 60;
    8| /// Primary points granted per level-up, distributed by class growth weights.
    9| pub const POINTS_PER_LEVEL: u32 = 3;
   10| 
   11| /// Caps / coefficients for the derived formulas (docs/mechanics.md §2).
   12| pub const EVAD_CAP: f32 = 0.35;
   13| pub const CRIT_CAP: f32 = 0.45;
   14| pub const CRIT_BASE: f32 = 0.02;
   15| pub const STAFF_FALLBACK: f32 = 0.45;
   16| 
   17| /// The six primary stats.
   18| #[derive(Debug, Clone, Copy, PartialEq, Eq, Default, Serialize, Deserialize)]
   19| pub struct Stats {
   20|     pub str: u32,
   21|     pub will: u32,
   22|     pub con: u32,
   23|     pub dex: u32,
   24|     pub int: u32,
   25|     pub cha: u32,
   26| }
   27| 
   28| impl Stats {
   29|     pub fn total(&self) -> u32 {
   30|         self.str + self.will + self.con + self.dex + self.int + self.cha
   31|     }
   32| }
   33| 
   34| /// Playable classes. Kept in one `enum` so match-exhaustiveness catches new classes.
   35| #[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
   36| pub enum Class {
   37|     Warrior,
   38|     Arche

src/core/stats.rs: 293 lines, showing 200-292
  200| 
  201|         Self {
  202|             max_hp,
  203|             max_mp,
  204|             p_atk,
  205|             m_atk,
  206|             def,
  207|             evad,
  208|             crit_chance,
  209|             crit_mult,
  210|             speed,
  211|             mp_regen,
  212|             bow_bonus,
  213|             spell_cost,
  214|             mp_pool: max_mp,
  215|             hp_pool: max_hp,
  216|         }
  217|     }
  218| }
  219| 
  220| /// Defence denominator: the `+24` in `p²/(p + d + 24)` (docs/mechanics.md §3).
  221| pub const DEFUSE: f32 = 24.0;
  222| 
  223| /// Core damage formula: `p * p / (p + d + DEFUSE)`, always positive.
  224| #[inline]
  225| pub fn damage_formula(power: f32, defence: f32) -> f32 {
  226|     let p = power.max(0.0);
  227|     let d = defence.max(0.0);
  228|     (p * p / (p + d + DEFUSE)).max(1.0)
  229| }
  230| 
  231| /// XP curve entry point used by tests and the balance harness.
  232| pub fn xp_to_reach(level: u32) -> u32 {
  233|     Character::xp_to_next(level.saturating_sub(1).max(1))
  234| }
  235| 
  236| #[cfg(test)]
  237| mod tests {
  238|     use super::*;
  239| 
  240|     #[test]
  241|     fn every_class_totals_the_same_at_level_1() {
  242|         for c in Class::all() {
  243|             assert_eq!(c.base().total(), PRIMARY_TOTAL, "{c:?} base total");
  244|         }
  245|     }
  246| 
  247|     #[test]
  248|     fn grow

ERROR: only these cargo subcommands are allowed: ['build', 'check', 'clippy', 'fmt', 'metadata', 'run', 'test', 'tree']

[READ BUDGET EXCEEDED (7 reads > 6): showing at most 60 lines from start_line. Everything you read earlier is still in your context. Stop surveying: use the compiler/test output as your map and EDIT now.]
src/core/battle.rs: 1037 lines, showing 1-60
    1| //! Turn-based idle battle: combatants, enemies, locations, turn order, auto-potions,
    2| //! death/respawn and companion effects.
    3| //!
    4| //! All randomness comes from `core::rng::Rng`. No other entropy source.
    5| //! Stat math lives in `core::stats`; enemy scaling, boss multipliers and pricing live in
    6| //! `core::balance`. This module orchestrates them, it never re-derives them.
    7| 
    8| use serde::{Deserialize, Serialize};
    9| 
   10| use crate::core::rng::Rng;
   11| use crate::core::stats::{damage_formula, Character, Derived};
   12| 
   13| /// Hard stop for a single fight, mirroring the balance harness.
   14| pub const MAX_TURNS: u32 = 400;
   15| /// A fight that stays inside this many turns is "clearable" (the test contract).
   16| pub const N_TURNS_CLEAR: u32 = 60;
   17| /// HP fraction below which the auto-potion rule drinks an HP potion.
   18| pub const HP_POTION_THRESHOLD: f32 = 0.35;
   19| /// Fraction of `max_hp` an HP potion restores.
   20| pub const HP_POTION_RESTORE: f32 = 0.45;
   21| /// Fraction of `max_mp` an MP potion restores.
   22| pub const MP_POTION_RESTORE: f32 = 0.50;
   23| /// A buff potion's +25% on one derived stat, lasting `BUFF_TURNS` turns.
   24| pu

edited src/core/balance.rs: -306 +389 chars; file is now 413 lines

edited src/core/balance.rs: -112 +230 chars; file is now 416 lines

edited src/core/balance.rs: -303 +578 chars; file is now 423 lines

exit=101
running 1 test
L 1 ttk [23.54 12.17 12.92]  hp [0.555 0.173 0.022]
L10 ttk [2.42 2.50 1.25]  hp [0.000 0.000 0.000]
L25 ttk [1.25 1.08 1.00]  hp [0.000 0.000 0.000]
test core::balance::tests::balance_table_within_10_percent ... FAILED

failures:

failures:
    core::balance::tests::balance_table_within_10_percent

test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 43 filtered out; finished in 0.00s


   Compiling emberfall v0.1.0 (/home/zerc/rpgbench/game)
    Finished `test` profile [unoptimized + debuginfo] target(s) in 1.30s
     Running unittests src/main.rs (/home/zerc/rpgbench/target/debug/deps/emberfall-97c9a580c445fc95)

thread 'core::balance::tests::balance_table_within_10_percent' (1885196) panicked at src/core/balance.rs:383:13:
Archer died against Ember Warden at level 1
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
error: test failed, to rerun pass `--bin emberfall`
error: 1 target failed:
    `--bin emberfall`

edited src/core/balance.rs: -1344 +1741 chars; file is now 435 lines

edited src/core/balance.rs: -101 +124 chars; file is now 435 lines

exit=101
running 1 test
L 1 ttk [23.54 12.17 12.92]  hp [0.555 0.173 0.022]
L10 ttk [2.42 2.50 1.25]  hp [0.000 0.000 0.000]
L25 ttk [1.25 1.08 1.00]  hp [0.000 0.000 0.000]
test core::balance::tests::balance_table_within_10_percent ... FAILED

failures:

failures:
    core::balance::tests::balance_table_within_10_percent

test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 43 filtered out; finished in 0.00s


   Compiling emberfall v0.1.0 (/home/zerc/rpgbench/game)
    Finished `test` profile [unoptimized + debuginfo] target(s) in 1.31s
     Running unittests src/main.rs (/home/zerc/rpgbench/target/debug/deps/emberfall-97c9a580c445fc95)

thread 'core::balance::tests::balance_table_within_10_percent' (1887703) panicked at src/core/balance.rs:395:13:
Archer died against Ember Warden at level 1
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
error: test failed, to rerun pass `--bin emberfall`
error: 1 target failed:
    `--bin emberfall`

[READ BUDGET EXCEEDED (8 reads > 6): showing at most 60 lines from start_line. Everything you read earlier is still in your context. Stop surveying: use the compiler/test output as your map and EDIT now.]
src/core/balance.rs: 435 lines, showing 381-425
  381|     #[test]
  382|     fn balance_table_within_10_percent() {
  383|         let rows = balance_table();
  384|         assert_eq!(rows.len(), 9);
  385|         let points = balance_points(&rows);
  386|         for p in &points {
  387|             // TEMP DIAGNOSTIC
  388|             println!(
  389|                 "L{:>2} ttk [{:.2} {:.2} {:.2}]  hp [{:.3} {:.3} {:.3}]",
  390|                 p.level, p.ttk[0], p.ttk[1], p.ttk[2], p.hp_left[0], p.hp_left[1], p.hp_left[2]
  391|             );
  392|         }
  393| 
  394|         for r in &rows {
  395|             assert!(
  396|                 r.survived && r.hp_left > 0.0,
  397|                 "{} died against {} at level {}",
  398|                 r.class,
  399|                 r.boss,
  400|                 r.level
  401|             );
  402|         }
  403| 
  404|         for (level, ttk, hp) in spreads(&points) {
  405|             assert!(
  406|                 ttk <= TOLERANCE,
  407|                 "ttk spread {ttk:.4} > {TOLERANCE} at level {level}"
  408|             );
  409|             assert!(
  410|                 hp <= TOLERANCE,
  411|                 "hp_left spread {hp:.4} > {TOLERANCE} at level {level}"
  412|             );
  41

edited src/core/balance.rs: -580 +630 chars; file is now 433 lines

exit=101
running 1 test
L 1 ttk [23.54 12.17 12.92]  hp [0.555 0.173 0.022]
L10 ttk [2.42 2.50 1.25]  hp [0.000 0.000 0.000]
L25 ttk [1.25 1.08 1.00]  hp [0.000 0.000 0.000]
DIED: Archer vs Ember Warden at level 1
DIED: Wizard vs Ember Warden at level 1
DIED: Warrior vs Ashen Stag at level 10
DIED: Archer vs Ashen Stag at level 10
DIED: Wizard vs Ashen Stag at level 10
DIED: Warrior vs Mine Tyrant at level 25
DIED: Archer vs Mine Tyrant at level 25
DIED: Wizard vs Mine Tyrant at level 25
ttk spread 0.7018 > 0.1 at level 1
hp_left spread 2.1289 > 0.1 at level 1
ttk spread 0.6081 > 0.1 at level 10
ttk spread 0.2250 > 0.1 at level 25
test core::balance::tests::balance_table_within_10_percent ... FAILED

failures:

failures:
    core::balance::tests::balance_table_within_10_percent

test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 43 filtered out; finished in 0.01s


   Compiling emberfall v0.1.0 (/home/zerc/rpgbench/game)
    Finished `test` profile [unoptimized + debuginfo] target(s) in 1.02s
     Running unittests src/main.rs (/home/zerc/rpgbench/target/debug/deps/emberfall-97c9a580c445fc95)

thread 'core::balance::tests::balance_table_within_10_percent' (1889178) panicked at src/core/balance.rs:411:9:
assertion `left == right` failed: balance contract violated
  left: 4
 right: 0
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
error: test failed, to rerun pass `--bin emberfall`
error: 1 target failed:
    `--bin emberfall`

ERROR: `old` occurs 0 times in src/core/balance.rs (must be exactly 1)

ERROR: `old` occurs 0 times in src/core/balance.rs (must be exactly 1)

ERROR: `old` occurs 0 times in src/core/balance.rs (must be exactly 1)

exit=0
Checking emberfall v0.1.0 (/home/zerc/rpgbench/game)
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.04s

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 41/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 0
dist/ with .wasm present: True

[READ BUDGET EXCEEDED (9 reads > 6): showing at most 60 lines from start_line. Everything you read earlier is still in your context. Stop surveying: use the compiler/test output as your map and EDIT now.]
src/core/balance.rs: 433 lines, showing 186-245
  186| }
  187| 
  188| /// Simulate the boss fight for one class at one reference level. Returns
  189| /// (`turns_to_kill`, `hp_left_fraction`, `survived`). The fight ends when the boss dies
  190| /// (`survived = true`) or when the hero's HP pool reaches 0 (`survived = false`); the turn
  191| /// cap is a watchdog only and never counts as a kill.
  192| fn simulate(ch: &Character, gear_atk: f32, gear_def: f32, boss: &Boss, rng: &mut Rng) -> (f32, f32, bool) {
  193|     let mut d: Derived = Derived::with_gear(ch, gear_def, gear_atk);
  194|     let mut boss_hp = boss.hp;
  195|     let mut kill_turn = 0u32;
  196|     let mut turn = 0u32;
  197|     let mut alive = true;
  198| 
  199|     while kill_turn == 0 && turn < 400 {
  200|         turn += 1;
  201| 
  202|         // --- hero action ---
  203|         let (power, cost) = ch.attack_power(&d);
  204|         if cost > 0.0 {
  205|             d.mp_pool = (d.mp_pool - cost).max(0.0);
  206|         }
  207|         if !rng.chance(BOSS_EVADE) {
  208|             // the boss evades with its own flat chance; the hero's crit is the same roll the
  209|             // battle engine makes, so the harness and the fight agree
  210|             let mut dmg = damage_formul

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 41/44 pass; failing: ['core::battle::tests::different_seeds_diverge', 'core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 0 warnings+errors (exit 0)
dist/ with .wasm present: True

edited src/core/balance.rs: -336 +61 chars; file is now 426 lines

rs files: 18
MODULE WIRING: undeclared .rs files: none; files shadowed by an inline `mod x {}` stub: none
cargo test: exit 101; 41/44 pass; failing: ['core::battle::tests::every_location_boss_is_bearable_at_reference_levels', 'core::battle::tests::different_seeds_diverge', 'core::balance::tests::balance_table_within_10_percent']; ignored: 0
compile errors: none (test build exit 0)
clippy: 4 warnings+errors (exit 0)
wasm32 check: exit 0
dist/ with .wasm present: True