feedback7 R22-UNBAL: a pushed / pulled enemy is held in the official 失衡 (UNBALANCE) state — no walking, no normal attack — for the push's 位移时间 of its 受力等级 or the pull's force window; a 静态刚体 hit by a force gets the 0.1 s floor; the client's slide takes the same game time (idea from PR #392 by @xcdoge, re-implemented from the sources); golden: 69 scenarios move, 35 with kills / leaks / deaths / boss HP (below)

Seen: the sim moved a displaced enemy at once and it walked / swung again on the next tick; players compared with the
official game (PR #392: 「被推/拉完的敌人会先站住一小会儿再走」). Research (scratchpad report r3): PRTS 失衡位移机制 — a force > 0
puts an enemy in the UNBALANCE state machine with a 0.1 s 失衡硬直 floor, ending when its speed is ≤ 0.1 m/s, on 浮空 or a
forced state change; 异常效果图鉴/失衡免疫 「失衡期间无法自主移动、发动攻击、使用技能」; 异常效果 — not an abnormal status (水遁忍者's
check still runs); 游戏数据基础 推力-位移近似对应表 位移时间 (whole frames at 30 fps); 推与拉 拉力 「作用时间默认为 1 s；若本次受力
等级 < −1，作用时间改为 0.5 s」, 急停 keeps the state to the window's end; 特殊机制 静态刚体 (0.1 s 保底); 术语释义 浮空.

Now: constants.js PUSH_UNBALANCE {−2: 0.2, −1: 0.4, 0: 0.8, 1: 0.9, 2: 32/30, 3: 35/30}, PULL_UNBALANCE 1 /
PULL_UNBALANCE_WEAK 0.5, UNBALANCE_MIN 0.1. battle/displacement.js: push() holds for its level's row (the −2 correction
included), kept when the 特效 column or a wall shortens the slide [ASSUMED for the wall], the 0.1 s floor when a wall
stops it at the first step [ASSUMED]; pull() holds for its window whatever the travel (≤ −3: none; an enemy the puller
blocks: still no pull [ASSUMED, unchanged]); a 静态刚体 (data staticBody, not 失衡免疫 noDisplace) hit by force level
≥ −2 gets 0.1 s and no movement (_staticForce); _unbalance sets enemy.unbalanceUntil (a longer running one kept) and ends
the attack clip's stand. ai.js updateEnemy: no walking (恐惧 / 诱导 too — PR #392's fear exemption is not taken), no new
normal attack, a swing short of its frame cut, 浮空 clears it; a 重生 clears it (archetypes.js reborn). Not a stun: no
status, no immunity, SP and the attack cooldown run. No global skill lock: enemy abilities keep ticking ([ASSUMED] scope).
The move stays instant (the unbalanced() talents keyed off the jump unchanged). The displace fx carries `dur` (game s);
render/units.js slideTo divides it by ctx.animRate (2× default: a 0.8 s push slides 0.4 real s); DISPLACE_SLIDE·√D is
only the fallback for an fx without it. Not taken from #392: UNBALANCE_TRAVEL 0.6387·√tiles / the client's 0.3194 (derived
from the page's μ = 0.5 单位假设, one frame high on every push row, the wrong shape for pulls) and the fear exemption.

Tests: test/sim/unbalance.test.js (8: the push rows and walking after them; no attack in the hold, a feared enemy held;
the −2 correction's 0.2 s; 特效 / wall-shortened rows and the first-step floor; pull windows incl. the 急停 and ≤ −3; 静态刚体
0.1 s without movement, 失衡免疫 never; 浮空 clears; the fx `dur` — the file fails on the parent); test/render/unitview.test.js
(+1: the slide at 2× for a push and a pull, the fallback — fails on the parent); feedback1b-displacement B5 (the drone is
now held 0.1 s per force, never moved). test/sim + test/content + test/render: 3433 pass. Docs: SIM.md (push / pull,
displace, assumptions), PLAYING.md 推开 / 拉拽, research 13 §0 / §5.

Golden — every moved battle has pushes / pulls (probe of the callers) and its enemies are now held; outcome moves:
roster-002 (野鬃: killed 29→33, leaks 15→11), roster-003 (野鬃: deaths 3→7), roster-007 (薄绿: killed 110→118, leaks 53→47),
roster-008 (薄绿: 45→47 / 42→40), roster-010 (歌蕾蒂娅: killed 45→44, leaks 57→58), roster-011 (莫斯提马: 78→79 / 4→3),
roster-031 (钩索师 pulls, tier4: killed 64→72, leaks 12→4, deaths 6→5), roster-041 (钩索师: deaths 5→4), roster-043 (山:
deaths 15→14), roster-044 (山: killed 107→103, leaks 12→16, deaths 15→14); bond-deputShip-low (薄绿: 18→21 killed, leaks
3→0, deaths 1→0), bond-kazimierzShip-high (野鬃: deaths 3→2); boss-boss_3-pair (锏: p2 deaths 3→2), boss-boss_4-pair
(莫斯提马 / 歌蕾蒂娅: killed 11→12, boss HP 7442429→7375628, p2 leaks 2→1, deaths 19→18), boss-boss_6-pair (boss HP
6932482→6865243, p2 deaths 19→17), hidden-boss_8-pair (boss HP 12585770→12585798), hidden-boss_9-pair (锏: boss HP
3630612→3636991); standin-05 / 08 / 10 (预备干员-特种 pulls: killed 5→8 / 42→44 / 28→29, leaks down by 3 / 2 / 1);
diy-101 (傀影: killed 22→21, leaks 92→93), diy-114 / 115 / 116 (黑键: 106→99 & 83→90 / 154→156 & 78→70 / 3→2 & 120→121),
diy-137 (预备干员-特种: 68→79 / 79→68); matches through those battles — coop2-HARD-4, coop2-NORMAL-14-standins,
coop2-NORMAL-3, coop2-NORMAL-70-diy, coop3-ABYSS-5, coop4-ABYSS-7, solo-ABYSS-2 (LP 2→4 at round 10), solo-HARD-2
(ai_0 now survives round 13: eliminated 13 → alive), solo-HARD-9-boosted (LP 399→398), solo-NORMAL-1. Other moves (damage,
heals, snapshots only): roster-009/012/017/019/032/039/040/042/046, 13 bonds, boss-boss_2-pair, hidden-boss_10-pair,
standin-03, diy-053/084/085/102/103/108/109, coop2-ABYSS-10-boosted, solo-ABYSS-1.

test/render/unitview.test.js

@@ -611,6 +611,24 @@ describe('a push / pull slide (推拉: the official impulse under friction)', ()
     assert.equal(ice.x, 7.7, 'the destination is authoritative whatever the floor');
   });
 
+  test('the slide takes the sim\'s 失衡 time: the fx `dur` (game s) at the playback rate — 0.8 s at 2× is 0.4 real s', async () => {
+    const at2 = async (id) => {
+      const ctx = fakeViewCtx(fake.P, { assets: store({ spine: true }), cam, animRate: () => 2 });
+      const v = new UnitView(ctx, { id, side: 'enemy', kind: 'enemy', defId: 'enemy_1007_slime', x: 5, y: 12, maxHp: 100 }, {});
+      await tick(); await tick();
+      return v;
+    };
+    const push = await at2(11), pull = await at2(12), old = await at2(13);
+    push.slideTo(6.7, 12, { dur: 0.8 });                    // a 受力等级 0 push (1.7 tiles, PRTS 位移时间 0.8 s)
+    assert.ok(Math.abs(push.slide.dur - 0.4) < 1e-9, `${push.slide.dur}`);
+    pull.slideTo(3, 12, { dur: 1 });                        // a pull's force window
+    assert.ok(Math.abs(pull.slide.dur - 0.5) < 1e-9, `${pull.slide.dur}`);
+    old.slideTo(6.7, 12);                                   // an fx without `dur` (an older recording): the fallback
+    assert.ok(Math.abs(old.slide.dur - Math.min(0.45, Math.max(0.12, 0.14 * Math.sqrt(1.7)))) < 1e-9, `${old.slide.dur}`);
+    step(push, push.slide.dur);
+    assert.equal(push.x, 6.7, 'lands on the destination');
+  });
+
   test('the duration follows √distance, not distance', async () => {
     const near = await view(4), far = await view(5);
     near.slideTo(6.2, 12); far.slideTo(10.5, 12);          // 1.2 vs 5.5 tiles