Branch review of fb7-unbalance (MERGE AFTER FIXES):
1. A 静态刚体 pulled got the 0.1 s floor: _staticForce now knows push from pull — a push's force is instant (推与拉), so
0.1 s; a pull's lasts its window (pullUnbalance: 1 s, 0.5 s below −1) — PRTS 特殊机制 静态刚体 「在失去施力后立刻」 out,
「0.1 秒保底」. pull() checks the puller's own block before the static case.
2. 弧光锋卫 (PRTS 天赋 「处于失衡状态时，每0.066s受到400点无来源真实持续伤害」, data unbalanced_bleed): a tick bleed of 400 every
0.066 s while unbalancedNow holds; the per-tile one-shot from the position jump ([ASSUMED], UNBALANCE_SPEED) is gone.
A 受力等级 0 push (0.8 s) → 12 hits = 4800 (was 2037), a 急停 pull with no movement (1 s) → 15 = 6000 (was 0), a
wall-shortened slide keeps the 0.8 s row → 4800.
3. 失衡免疫 「失衡期间无法自主移动、发动攻击、使用技能」: enemies/helpers.js unbalancedNow; canCast(e, sil, battle) refuses while it
runs (content skills; the boss parts' calls pass the battle), blinkForward returns null, 枯朽之种's dive / blast and the
铳 / 碎铳之簧 charges wait, 乌顶巨角卢鲁's clash waits for its end. A route APPEAR relocation clears it (a forced state
switch, 失衡位移机制). Left running on purpose (docs/SIM.md): 水遁忍者's damage check (异常效果 「仍然能正常造成伤害」), passive
auras and terrain / periodic effects, death / damage-taken triggers, skill cooldowns, 弧光锋卫's bleed itself.
4. husk() (逐火 余烬 重生) clears the state like reborn().
5. The 35/30 row held 36 frames (t0 + 35/30 overshoots in floats): every check compares with 1e-9; the frames are asserted.
Tests: test/sim/unbalance.test.js +6 (exact frames 6 / 12 / 24 / 27 / 32 / 35 with the walk on the next frame; static pull
1 s / 0.5 s, push 0.1 s; 弧光锋卫 4800 / 6000 / 4800; canCast / blinkForward refused, 枯朽之种 held then diving; the elk's clash
after the state; APPEAR and a 逐火 重生 clear it — all six fail on the parent); enemies_bosses (失衡 kit test) and
feedback1d-solvent (BUFF damage) updated to the state bleed. test/sim + test/content + test/render pass. Docs: SIM.md
(push / pull row), PLAYING.md, design/engine.md (helpers, enemy AI), constants / displacement comments.
Golden against the previous commit — outcome moves: roster-010 (歌蕾蒂娅 pulls 妖怪 drones, now held 1 s: killed 44→45,
leaks 58→57), roster-040 (static pulls of 妖怪: killed 28→25, leaks 37→40, deaths 29→30), roster-043 / 044 (山: deaths 14→16 /
14→13), hidden-boss_9-pair (锏: boss HP 3636991→3586929), coop4-ABYSS-7 (ai_2 LP +1 from round 5), diy-115 (黑键: leaks
70→75), diy-116 (黑键: killed 2→3, leaks 121→120) — the static pulls (probe) and the 1e-9 end (a frame shorter where the float
sum overshot: the 35/30 row, some pull windows); other moves (damage / snapshots only): roster-008 / 017 / 039, 9 bonds,
boss-boss_4-pair / boss_6-pair / hidden-boss_10-pair, coop2-NORMAL-14-standins / coop2-NORMAL-3 / solo-ABYSS-1 /
solo-HARD-1 / solo-HARD-9-boosted / solo-NORMAL-1, diy-053 / 085 / 102.
- Conflict: docs/PLAYING.md 技能自动释放 bullet — both insertions kept (the 铁钳号 rule from fb7-owner-sim, the #298
pacing sentence).
- Grok review: MERGE AFTER FIXES — the HIGH #298 finding (the cast replaced the due attack) fixed on the branch
(db29acf9: per-skill nextCastAt; golden of #298 alone shrank from 84 scenarios to 2).
- Golden union: 4 matches differ from HEAD though the branch alone left them (coop2-NORMAL-3, coop4-ABYSS-7,
coop2-NORMAL-8-serverrun, solo-HARD-9-boosted): HEAD's side had moved all four (#333's shop RNG …) and on those new
bot paths the merged rules apply — the diffs are in-battle layer gains / damage (卡西米尔 50 → 45, 精准 80 → 76,
叙拉古 176 → 168, kills ±2, solo-HARD-9 LP 397 → 399), no outcome change.
- Broad node --test 5571 (5570 pass, 0 fail, 1 skipped); lint 0 errors; typecheck.
Seen (#364, FrogThai): the 中枢先兆者's shell hit the target and its orthogonal neighbours only — repro: a diagonal
neighbour (√2 ≈ 1.414 from the impact) took nothing, as did a tile two away; the reporter saw the 3×3 in the official game.
Official: PRTS 天赋 of both 先兆者 (one shared kit) 「弹道对半径1.2范围内的所有我方单位造成攻击力100%的无来源物理伤害（此弹道
不会强制击中主目标，碰撞无视迷彩）」. The landing is a 碰撞; PRTS 作战机制 §碰撞体积 (docs/SIM.md, constants.js): collider tests are
the common way and an ally's collider is a 0.25 circle — the rule the engine already applies to ranged enemies' reach.
Now (content/enemies/fly.js kitShell): an ally is hit when its collider touches the 1.2 circle — centre distance ≤ 1.45
(SHELL_REACH = SHELL_RADIUS + ALLY_COLLIDER_RADIUS): the impact tile and the 8 around it, never two tiles away. The
telegraph and the blast are drawn at that reach. [ASSUMED] for this shell (its text names the 碰撞); other content zones
keep their point radius as before. Golden: the three battles with a 先兆者 whose shells land beside a diagonal operator
(roster-001 中枢先兆者, roster-019 and diy-020 先兆者).
Community report relayed by the owner: 炎祐好像吃到了不该吃到的地面伤害. 炎佑 is a flying ally (PRTS “炎佑”
行动方式 飞行). The ground terrain (活性源石), 烹泉 / 沏虹, 庞贝 and 集团军重型火炮 already skipped it, but these
不可对空 effects (PRTS, read for every enemy of data/enemies.json) went through areaAllies / fieldAllies /
targetsNear, which exclude 起飞 allies only:
- 死亡爆炸 of 高能源石虫 / 冰爆源石虫 / 卷心籽 (archetypes deathBoom: `noAir`, on by default; 寒冷 too);
- 水遁忍者 漩涡形态 "每秒对半径1.0范围内的所有我方单位造成…（无视迷彩，不可对空）";
- 鼎沸 "攻击范围内的所有我方单位每秒受到…法术持续伤害与…灼燃损伤（不可对空）";
- “萨科塔昂首” 祈祷邀约 "令全场我方单位（不可对空，无视迷彩）获得15s【受邀祈祷】攻击速度-30";
- “斩胄之剑” / “破胄之锤” "普通攻击对攻击范围内的所有我方单位造成…物理普通伤害，不可对空" (its target rule too).
A ground enemy's normal attack and the 不可对空-free effects still reach it (PRTS: enemies that hit air target it).
Tests: test/content/feedback7-yanyou-noair.test.js (8; all fail on the parent).
- server/sim/detmath.js: hypot (sqrt of the squares, rescaled outside 2^±500), powi (integer powers in double-double,
one rounding), sin / cos (fdlibm 5.3) and atan2 (fdlibm / FreeBSD msun) built only from correctly rounded IEEE
operations; the sim's Math.hypot / sin / cos / atan2 / pow calls go through it (65 files); eslint.config.js forbids
the approximated Math functions under server/sim and test/sim/detmath.test.js scans for them.
- sin / cos / atan2 are the algorithms V8 runs in Node, so the server's results stay; only hypot differs from V8's.
Golden: 2 moved — diy-027 (a hypot distance, damage +80) and coop3-ABYSS-5 (a later card pick from round 9, same end).
- Applied unchanged after review (Grok static review: MERGE; the diff read in full: no network, no new dependency).
- Tests: broad node --test 5155 / 5155 with the new file tracked (detmath 7 / 7, package 10 / 10); lint 0 errors,
typecheck, check:imports.
sganggs