Operator battle voices: the official combat lines play by voice slot during battles, one at a time (#73)

Deploy, skill and result lines come from the operators' official voice slots; a newer line takes the channel over (stale callbacks of the replaced line no longer release it), and the result line is spoken by an operator of the player's own battle. Contributed by @Convey123.

docs/ASSETS.md

@@ -19,7 +19,9 @@ npm run assets       # = node tools/vendor.mjs && node tools/fetch-assets.mjs
 | `--force` | Re-download everything. |
 | `--offline` | No network. Re-runs post-processing (atlas fixes, skeleton parsing, WOFF2) on what is already on disk, then rebuilds `data/assets.json`. |
 | `--dry-run` | Print the plan (file and model counts, alias notes) and exit. |
-| `--refresh-index` | Re-download the two upstream indexes: `audio_data.json` and `models_data.json`. |
+| `--refresh-index` | Re-download the upstream indexes: `audio_data.json`, `charword_table.json` (the 干员战斗语音 slots) and `models_data.json`. |
+| `--voice-lang=cn` | 干员战斗语音 language: `cn` (default) | `jp` | `en` | `kr` — the same file names under `voice_cn/`, `voice/`, `voice_en/`, `voice_kr/`. |
+| `--voice-all` | Plan every official voice slot, including the prep-only lines no battle plays (干员报到 / 编入队伍 / 任命队长 — 360 files, one per operator and slot). Off by default: nothing requests them, so planning them only makes every run download more. |
 | `--prune` | Delete files under `public/assets/` that the manifest no longer references, for example after a mapping change. Without this flag they are only listed in the report. `public/assets/local/` (written by `tools/local-extract`) is never pruned. Implies `--allow-shrink`. |
 | `--allow-shrink` | Write `data/assets.json` even when it loses entries the current one has (see "The manifest never shrinks by accident" below). |
 | `--local-spines` | Rewrite `tools/assets/local-enemy-spines.json` (the metadata of the enemy models only the local client has, see "Enemy aliases") from the models `tools/local-extract/extract.py` extracted to `public/assets/local/spine/enemy/`. Run it after a game update changed them; without it the committed file is used and a differing extraction only gets a warning. |
@@ -31,7 +33,9 @@ audio entries short — all 42 still resolve upstream; PR #7). When the rebuilt
 one, the run keeps the current file, prints the entries it would drop (also in the report: `droppedEntries`,
 `manifestWritten: false`) and exits 1. Re-run to retry the downloads, or pass `--allow-shrink` (or `--prune`) when the
 smaller manifest is intended, for example after a mapping change. Build fields (`version`, `hash`, `generator`,
-`stats`), new entries and a changed value are never a drop (`tools/assets/manifest.mjs droppedEntries`).
+`stats`), new entries and a changed value are never a drop (`tools/assets/manifest.mjs droppedEntries`). A run whose
+plan legitimately narrows — like the 干员战斗语音 default, which no longer plans the three prep-only slots (360 entries,
+DESIGN §21.30) — reports exactly those entries and needs `--allow-shrink` once; the list it prints is the check.
 
 The script is **idempotent**. A file on disk is kept, not re-downloaded, when any one of these holds:
 - its size matches the ledger entry from a previous download (`.cache/assets-ledger.json`);
@@ -48,7 +52,7 @@ How downloads are fetched:
 - A manifest entry with fallbacks (for example an enemy icon that falls back to its base enemy's icon) only moves on to the next alternative after a **definitive 404**. When the primary fails transiently (network error, 5xx or an invalid payload after all retries), no fallback is fetched. The path is listed under `downloadErrors` in the report, and the next run retries the primary.
 - A skeleton that fails to parse is deleted and removed from the ledger, so the next online run downloads it again.
 
-The first run downloads about **269 MiB in about 4,000 files** (it took 134 s on a ~3 MB/s link before the 55 emote and 玩法说明 files, 21.3 MiB, were added). A re-run takes about 1 s.
+The first run downloads about **309 MiB in about 5,690 files** (it took 134 s on a ~3 MB/s link before the 55 emote and 玩法说明 files, 21.3 MiB, and the 1,680 干员战斗语音 files, 40.1 MiB, were added). A re-run takes about 1 s. The voice count is the twelve slots a battle plays; the three prep-only slots the official client uses elsewhere (干员报到 / 编入队伍 / 任命队长, 360 more files, 18.4 MiB) are left out unless `--voice-all` is passed.
 
 Outputs:
 - `data/assets.json`: the manifest (committed).
@@ -86,6 +90,7 @@ The research JSONs in `docs/research/` (03, 05, 07) define **which** ids are nee
 | Enemy Spine that no dump carries (灼热源石虫 / 炽焰源石虫) | the local client only (`tools/local-extract/extract.py ENEMY_SPINES`, optional); never downloaded and never required: an overlay of the web alias (`enemies[id].spineLocal`) | `local/spine/enemy/{enemyId}/{stem}.*` (listed in `data/local-assets.json`) |
 | BGM | AA2 `voice` branch `audio/sound_beta_2/music/**` (大厅/休整期 `act1autochess`, 开战 `act13side/m_bat_kazimierz2_{1,2}` — 骑士之日 / 无畏者; the 开战 track follows the round: `_2` 无畏者 rounds 1–7, `_1` 骑士之日 from round 8) | `audio/bgm/{file}.mp3` |
 | SFX (UI, battle, per unit) | AA2 `voice` `audio/sound_beta_2/**`, mapped from `audio_data.json` banks | `audio/sfx/{same sub-path}.mp3` |
+| 干员战斗语音 | AA2 `voice` `audio/sound_beta_2/voice_cn/{charId}/cn_nn.mp3` — the lines `charword_table.json` lists (`placeType` = when the game plays one, `voiceAsset` = the path); `--voice-lang=jp|en|kr` takes the same file names from `voice/`, `voice_en/`, `voice_kr/` | `audio/voice/{lang}/{charId}/{cn_nn}.mp3` |
 | Fonts: Bender Regular and Light, Novecento Wide | TimWangZi/The-font-of-Arknights | `public/fonts/*.{otf,ttf,woff2}`, `public/fonts/fonts.css` |
 
 The `stem` of a Spine model is the upstream file name. Two examples: `char_107_liskam` has the stem `char_107_liskarm`, and `enemy_9032_aclionk` uses `enemy_1559_vtlionk`. The skel and atlas of a model always share one stem. pixi-spine locates the atlas by swapping the extension, so this matters.
@@ -136,7 +141,7 @@ All paths are URL paths relative to the site root, for example `/assets/char/ava
   hash: 'a1b2c3d4e5f6',             // content hash (cache busting)
   generator: 'tools/fetch-assets.mjs',
   stats: { files, bytes, chars, charsWithBack, enemies, enemiesWithSpine, tokens, tokensWithSpine,
-           spineModels, bonds, items, bands, skills, ui, sfxUnits },
+           spineModels, bonds, items, bands, skills, ui, sfxUnits, voiceChars },
   chars:   { [charId]: { avatar, avatarE2?, portrait, portraitE2?, spine: { front: Spine, back?: Spine } } },
   enemies: { [enemyId]: { icon, spine?: Spine, spineAliasOf?: enemyId,
                           spineLocal?: { group, skel, atlas, textures, …Spine } } },
@@ -161,6 +166,14 @@ All paths are URL paths relative to the site root, for example `/assets/char/ava
              // `bgmEvent = corrosion` (卡西米尔 act13d5d0), so the rescue phase does not reuse the 作战's track
              // (audio.js bgmKeyFor 'unite', falling back to `bgm.combat` for a manifest that lacks it)
     bossBgm: { [bossId]: { intro?, loop } },                   // per-boss track of its R14/R15 level
+    voice:   { [charId]: { start, faceEnemy, select, place, skill1…skill4,
+                           resultFour, resultThree, resultTwo, resultLose } },
+                           // 干员战斗语音: an operator's official battle lines (charword_table.json placeType → slot,
+                           // tools/assets/audio.mjs VOICE_SLOTS); a slot with several lines is an array and the client
+                           // draws one (public/js/audio.js voice). Only these twelve ever play (DESIGN §21.30): the
+                           // prep-only slots 干员报到 / 编入队伍 / 任命队长 are left out of the plan by default —
+                           // nothing requests them and they cost 360 files (19.3 MB) per run — and `--voice-all` adds
+                           // them (audio.mjs VOICE_PREP_SLOTS) for the complete official set
     sfx: {
       ui:     { click, back, confirm, tab, pick, drop, error, buy, sell, income, refresh, freeze, levelup,
                 merge, equip, itemMerge, bondUp, artPlace, ready, timer, draft, yourTurn, yourTurnCircle,

docs/DESIGN.md

@@ -1476,6 +1476,20 @@ Two public GitHub issues after 0.1.0, both client-only. Normative lines rewritte
 - Tests: `test/sim/feedback1-tank-triggers.test.js` (the data, kit = data, the real battle for the six and for every other MANUAL 重装 record), `test/data.test.js`, `kits_t1t2` / `kits_alt_t1` (PR #12's), `kits_alt_t2` (灰毫 S2), `kits_t5` / `kits_alt_t5` (号角), `test/docs-consistency.test.js`.
 - Extended 2026-10-04: 余 S2 (SKILL_RANGE on its x-1, §22.10); 14 records deviate now.
 
+### 21.30 干员战斗语音: an operator's official lines, in battle only (user request, 2026-10-03) — `tools/assets/plan.mjs` (`voiceSlots`), `tools/assets/audio.mjs` (`indexVoice` / `VOICE_SLOTS` / `VOICE_BATTLE_SLOTS` / `VOICE_PREP_SLOTS` / `VOICE_DIRS`), `tools/assets/cache.mjs`, `tools/fetch-assets.mjs --voice-lang / --voice-all`, `public/js/audio.js` (`VOICE_PRIORITY` / `VOICE_COOLDOWN_MS` / `VoiceGate` / `resultVoiceSlot` / `resultSpeaker` / `voice()`), `server/sim/ai.js performAttack 'engage'`, `battle/runner.js emit('result')`, `screens/game.js onResult`, `ui/detailPanel.js voice`, `ui/settings.js`, `ui/gameLogic.js sanitizeSettings`
+
+User: 「给每个卫戍干员都加语音」, then, after the first build, 「整备阶段不需要干员语音，战斗开始后才需要语音，也就是只需要作战中语音」.
+
+**Where the lines come from.** Every operator the mode can field already has official battle lines in the same voice dump the BGM and SFX come from — `voice_cn/{charId}/cn_nn.mp3` (JP/EN/KR: `voice/`, `voice_en/`, `voice_kr/`, the same file names, `tools/fetch-assets.mjs --voice-lang=jp|en|kr`). `charword_table.json`'s `placeType` says when each line is used, and `indexVoice()` turns it into the manifest's `audio.voice[charId]`: 行动出发 `start` (BATTLE_START), 行动开始 `faceEnemy` (BATTLE_FACE_ENEMY), 选中干员 `select`, 部署 `place`, 作战中1-4 `skill1..skill4` (BATTLE_SKILL_N), 编入队伍 `squad`, 任命队长 `squadFirst`, 结算 `resultFour/Three/Two/Lose` (完成高难行动 / 3星结束行动 / 非3星结束行动 / 行动失败) and 干员报到 `gacha`. A slot with several lines stays an array and the client draws one. Only the base word key is planned (`wordKey === charId`): the dump has no folder for a skin variant's word key (`char_x_ita`, `char_x_epoque#28`), so those lines 404. **Only the slots a battle can play are planned** (`audio.mjs VOICE_BATTLE_SLOTS`): 干员报到 / 编入队伍 / 任命队长 are lines of the official client's own 养成 / 编队 UI, nothing in this mode ever requests them (`test/docs-consistency.test.js` checks the client's `voice(...)` call sites), and downloading them cost 360 files (19.3 MB) on every run — `--voice-all` adds them back for the complete official set. Measured: 120 of the 121 in-mode charIds have a full set — the 17 预备干员 and the mode's own 盟约·辅助干员 have no battle voice at all, so they simply get no entry — 1680 lines of the 2040 upstream, in a manifest of 5694 files / 324.2 MB (files and `stats.voiceChars` in `data/assets.json`).
+
+**Where each line plays — battle only.** Every line comes from a running battle's own event stream or from its settlement, so no hook needs a phase check and the 休整期 stays silent: the shop does not say 干员报到 (a merge-completing buy neither says 任命队长), a retreat does not say 编入队伍 and dragging a piece onto the board in prep says nothing. In battle: 开战 — the first operator deployed says 行动出发 and the others 部署 (the sim's `deploy` events; `setFieldUnits` resets the flag per field — in this mode every piece enters at once, which is why the gate below exists, and a knocked-out operator's redeploy says 部署 again); 接敌 — the sim's new `['engage', id]` (a unit's first attack that hits an enemy, official ENCOUNTER_ENEMY); 技能 — `skillN` from the unit's `skillIndex` (作战中1-4); 选中 — the detail panel opening on an operator **while a battle runs** (`DetailPanel voice` = the game screen's `combat`); 结算 — `resultVoiceSlot()`: 完美作战 ⇒ 3星结束行动 (绝境 / 终极 ⇒ 完成高难行动), 有漏怪 ⇒ 非3星结束行动, 一个没杀 ⇒ 行动失败, spoken by a drawn operator **of that battle's own field** (`resultSpeaker`, from the result's `perPlayer.unitsEnd`: the operators of that field, survivors first, a summon piece never), driven by the runner's new `emit('result', …)` — never the field on screen, so watching a teammate cannot put their operator's voice on the viewer's settlement line (review on #73).
+
+**Why a channel, not SFX.** Voices are 1–4 s long and a battle deploys eight operators, then fires dozens of skills; playing them like SFX would flood the mix. `VoiceGate` copies the official scheduling data (`audio_data.json battleVoice.voiceTypeOptions`): one line at a time, a 1.2 s global gap, a per-unit per-slot cooldown (10 s for 作战中, 3 s for 接敌, 1.5 s for 选中) and takeover when a line's priority beats the playing one by a margin (the official 0.1 s `crossfade`) — the priorities are the official ones (BATTLE_START 100, ENCOUNTER_ENEMY 90, SKILL_ACTIVE 70, PLACE_CHAR 20, FOCUS_CHAR 10) and the settlement lines get 85, above 作战中 but below 接敌. Every deferred step of a line — its decode, its `onended`, the safety timer — carries its own token and returns without touching the gate once it is stale, so a line taken over while it was still loading can never free the channel its replacement just took (review on #73). The channel has its own gain and its own slider (设置 干员语音 / VOICE; `sanitizeSettings` adds `voice`, so a saved profile without it keeps the default and players can turn voices down without losing SFX). The buffer cache also gained a decoded-PCM budget (64 MB) beside its 180-entry cap: a voice decodes to ~0.4–1.3 MB, and 180 of them would be ~100 MB.
+
+**[ASSUMED].** 接敌 as "the unit's first attack on an enemy" (the official trigger is the first enemy it encounters, not necessarily one it hits) and the settlement mapping (漏怪 ⇒ 非3星, 完美作战 in 绝境 / 终极 ⇒ 完成高难行动) are our readings. Lines follow the field on screen: watching a teammate's battle (前往查看) plays *their* operators' lines, while the settlement line fires for the player's own battle only (`e.own`, `battle/runner.js`) and is spoken by an operator of that battle's own field (`resultSpeaker`). 部署 and 选中干员 stay in the plan although the official groups them with the prep lines: a battle *does* play them (the first operator says 行动出发 and the others 部署, and the detail panel says 选中 while a battle runs), so only the three slots no call site ever asks for are dropped — `VOICE_PRIORITY` / `VOICE_COOLDOWN_MS` keep every level, so `--voice-all` restores 编入队伍 / 任命队长 / 干员报到 for the day the 休整期 speaks again.
+
+- Tests: `test/ui/audio.test.js` (the priority table, the settlement slot and its speaker, the gate's global gap / per-unit cooldown / takeover, the stale-callback regression, and the battle events that drive the lines against a fake Web Audio), `test/ui/gameLogic.test.js` (the `voice` setting), `test/sim/battle.test.js` (the wire format: every emitted tuple is a known `EV` — the new `engage` included); the manifest's 1680 voice paths are covered by `test/assets.test.js`.
+
 ## 22. GitHub issues after 0.1.1 (v0.1.2)
 
 Public GitHub issues filed after the 0.1.1 release (2026-10-03), each triaged against 0.1.1 first; the real ones were fixed for 0.1.2 in fix branches WA–WL, each independently reviewed before it was merged into `feedback2`. Where each is handled: #25 back-facing operators keep their attack pose when knocked out → §22.1; #51 突袭's idle redeploy → §22.2; #33 items 1–2 阿戈尔's devour and 乌尔比安 S3 → §22.3; #33 item 6 活性源石, with the 沼泽 and 深水区 terrain → §22.4; #42 emotes and guide pages without a local client, and the English title (#38) → §22.5; #32 item 4 钩索师 / 推击手 on 高台 → §22.6; #52 史尔特尔's 余烬 → §22.7; #43 an enemy's 隐匿 after a block, and the 深池逐火 ember window → §22.8; #32 item 7 荒芜拉普兰德 S3's drones → §22.9; #32 item 1 余 S2 → §22.10; #44 归溟幽灵鲨's 替身 → §22.11; #32 item 6 enemy splash against a 隐匿 operator → §22.12; #35 / #16 (PR #48) 要塞 against air units and 莫斯提马's slow icon → §22.13; #58 / #60 / #64 follow in §22.14–§22.16. Decisions of the owner, 2026-10-04: 荒芜拉普兰德's drones measure the distance to an enemy's position, a huge enemy's centre (§22.9); 余 S2 casts with an enemy on its x-1 — a deliberate deviation from the official TAKE_DAMAGE row, added to §21.29's six (§22.10); 乌尔比安 keeps the devour gains through his 【移动】 — the deviation stays (§22.3).

docs/SIM.md

@@ -1196,7 +1196,8 @@ Unknown subprofessions fall back to the profession default (test `professions.te
   (`none|arrow|bolt|bomb|lob|orb|drone|enemy|boomerang|droneBomb|chain|chainHeal`; a boomerang's way back has no event — the
   renderer flies it back to the thrower at `BOOMERANG_RETURN_SPEED`; an enemy's `profile.shot` may name another kind,
   e.g. `mortar` for 帝国炮火先兆者, which the renderer does not draw — its fx `bombardShell` is the shell), `['dmg', tgt, amount, type]` (`phys|arts|true|burn|neural|necrosis|apoptosis`),
-  `['heal', tgt, amount]`, `['skill', id, 1|0]`, `['die', id, reason]`, `['leak', id]`, `['status', id, key, 1|0]`,
+  `['heal', tgt, amount]`, `['skill', id, 1|0]`, `['engage', id]` (an ally's first attack that hits an enemy — the client's
+  行动开始 voice, DESIGN §21.30), `['die', id, reason]`, `['leak', id]`, `['status', id, key, 1|0]`,
   `['fx', kind, x, y, extra]` (`hitCap` `{ id, n }`: a leader's hit cancelled by 限伤 — the renderer draws nothing;
   `extra.form` = the unit's model form from then on — an enemy's `content/enemies.js setForm`, a 傀儡师's 替身 — `shared/protocol.js fxForm`),
   `['layer', playerId, bondId, n]` (n = the layers actually added, capped at 999), `['bounty', playerId, coins]`.