ark-stronghold-protocol/test/content/enemies_bosses.test.js

// test/content/enemies_bosses.test.js — enemy special types / abilities (content/enemies.js) and scripted leaders
// (content/bosses.js). Every authored enemy / leader / part has at least one real battle asserting its signature effect.
// Battles run with content 'generic' (no domain modules) + extraContent [enemies, bosses] so other content modules never
// interfere (injected kits are honoured, unlike content 'none'); allies are
// synthetic (t_wall: blocks, never attacks; t_gun / t_mage: instant long-range phys / arts; t_blade: melee).

import { test } from 'node:test';
import assert from 'node:assert/strict';
import fs from 'node:fs';
import { makeBattle, chessRec, checkInvariants } from '../helpers/battleHarness.js';
import * as enemiesMod from '../../server/sim/content/enemies.js';
import * as bossesMod from '../../server/sim/content/bosses.js';

const E = JSON.parse(fs.readFileSync(new URL('../../data/enemies.json', import.meta.url), 'utf8'));
const W = JSON.parse(fs.readFileSync(new URL('../../data/waves.json', import.meta.url), 'utf8'));
const { KITS, STATS_ONLY, EROSION, EROSION_BURST } = enemiesMod;
const { BOSS_KITS, PART_TRANSFER } = bossesMod;

const BIG = [];
for (let dr = -4; dr <= 4; dr++) for (let dc = -12; dc <= 12; dc++) BIG.push([dr, dc]);
const WALL = (id, o = {}) => chessRec({ id, profession: 'TANK', stats: { atk: o.atk ?? 0, maxHp: 1e7, def: o.def ?? 0, res: o.res ?? 0, blockCnt: o.block ?? 3, ...o.stats }, rangeGrid: [[0, 0]], skill: null });
const CHESS = {
  t_wall: WALL('t_wall'), t_wall2: WALL('t_wall2'), t_wall3: WALL('t_wall3'), t_wall4: WALL('t_wall4'),
  t_gun: chessRec({ id: 't_gun', profession: 'SNIPER', projectile: 'none', stats: { atk: 50, maxHp: 1e7, bat: 1, blockCnt: 0 }, rangeGrid: BIG, skill: null }),
  t_mage: chessRec({ id: 't_mage', profession: 'CASTER', projectile: 'none', stats: { atk: 50, maxHp: 1e7, bat: 1, blockCnt: 0 }, rangeGrid: BIG, skill: null }),
  t_blade: chessRec({ id: 't_blade', profession: 'WARRIOR', stats: { atk: 50, maxHp: 1e7, bat: 1, blockCnt: 1 }, rangeGrid: [[0, 0], [0, 1]], skill: null }),
};
const NOATK = () => ({ trait: { noAttack: true } });
const KITSIN = { t_wall: NOATK, t_wall2: NOATK, t_wall3: NOATK, t_wall4: NOATK };

function arena(o = {}) {
  const { chess = {}, kits = {}, enemies = [], ...rest } = o;
  return makeBattle({
    content: 'generic', extraContent: [enemiesMod, bossesMod], seed: 7, autoFinish: false, timeLimit: 600,
    defs: { chess: { ...CHESS, ...chess } }, kits: { ...KITSIN, ...kits }, enemies, captureNoisy: !!o.captureNoisy, ...rest,
  });
}
const pool = (hp) => ({ hp, maxHp: hp, damage(pid, a) { this.hp = Math.max(0, this.hp - a); } });
/** Spawn a pinned enemy (speed ×0) at a tile. */
const put = (h, key, pos, o = {}) => h.spawn(key, { pos, routeIndex: 0, mods: { speedMul: o.move ? 1 : 0, ...(o.mods || {}) }, tag: o.tag ?? null, route: o.route });
const tb = (key, k) => E[key].talents.bb[k];
const skb = (key, p) => E[key].skills.find((s) => s.prefabKey === p);
const approx = (a, b, eps = 1e-6, msg = '') => assert.ok(Math.abs(a - b) <= eps * Math.max(1, Math.abs(b)), `${msg} ${a} ≈ ${b}`);
const nm = (k) => `${k} ${E[k] ? E[k].name : ''}`;
const statuses = (h, id, key) => h.hooksOf('statusApplied').filter((c) => c.target.id === id && c.status === key);
const killed = (h, e, by = null) => h.b.kill(e, by);
const alive = (h, key) => h.enemies().filter((e) => e.defId === key);

// ---------------------------------------------------------------------------------------------------------------
// coverage

test('every enemy key is authored (enemies.js / bosses.js) or listed as stats-only with a reason', () => {
  for (const k of Object.keys(E)) {
    const n = (KITS[k] ? 1 : 0) + (BOSS_KITS[k] ? 1 : 0) + (STATS_ONLY[k] ? 1 : 0);
    assert.equal(n, 1, `${k} ${E[k].name}`);
  }
  for (const k of [...Object.keys(KITS), ...Object.keys(BOSS_KITS), ...Object.keys(STATS_ONLY)]) assert.ok(E[k], `unknown key ${k}`);
});

test('stats-only enemies attach no ability and fight with their data stats', () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }] });
  h.step();
  for (const k of Object.keys(STATS_ONLY)) {
    const e = put(h, k, [10, 7]);
    assert.ok(!e.mem.ab || !e.mem.ab.list.length, k);
    assert.equal(e.s.atk, E[k].stats.atk, k);
  }
});

test('沉默: exactly the abilities whose handbook line is SILENCE-flagged can be silenced (every authored enemy)', () => {
  const h = arena();
  h.step();
  for (const key of [...Object.keys(KITS), ...Object.keys(BOSS_KITS)]) {
    const e = put(h, key, [10, 7]);
    const data = E[key].abilities.some((a) => a.format === 'SILENCE');
    const kit = !!(e.mem.ab && e.mem.ab.list.some((a) => a && (a.sil || a.silAware)));
    assert.equal(kit, data, `${nm(key)}: ${E[key].abilities.map((a) => `[${a.format}]${a.text}`).join(' / ')}`);
    h.b.kill(e, null);
    if (e.alive) { for (const a of e.mem.ab.list) a.state = 'form2'; h.b.kill(e, null); }
  }
});

// ---------------------------------------------------------------------------------------------------------------
// INVISIBLE 隐匿

for (const key of ['enemy_1009_lurker', 'enemy_1019_jshoot', 'enemy_1019_jshoot_2', 'enemy_1023_jmage', 'enemy_1283_sgkill', 'enemy_1283_sgkill_2', 'enemy_1389_winbab_2', 'enemy_10031_cnvsld', 'enemy_10042_prtrop', 'enemy_10042_prtrop_2']) {
  test(`${nm(key)}: 隐匿 — ranged operators cannot target it until it is blocked`, () => {
    const h = arena({ units: [{ chessId: 't_gun', row: 12, col: 3 }] });
    h.step();
    const e = put(h, key, [10, 7]);
    h.run(3);
    assert.ok(e.s.flags.stealth);
    assert.equal(e.stats.taken, 0);
    // blocked ⇒ targetable
    const h2 = arena({ units: [{ chessId: 't_gun', row: 12, col: 3 }, { chessId: 't_wall', row: 10, col: 7 }] });
    h2.step();
    const e2 = put(h2, key, [10, 7]);
    h2.run(3);
    assert.ok(e2.blockedBy && e2.stats.taken > 0);
    checkInvariants(h2.b);
  });
}

for (const key of ['enemy_1299_ymkilr', 'enemy_1299_ymkilr_2']) {
  test(`${nm(key)}: 隐匿; first attack after its stealth is broken (blocked) deals ×InvisibleCombat.atk_scale`, () => {
    const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }], captureNoisy: true, hooks: ['damaged', 'statusApplied', 'blocked'] });
    h.step();
    const e = put(h, key, [9, 5]);
    assert.ok(e.s.flags.stealth);
    h.runUntil(() => e.stats.attacks >= 2, 30);
    const hits = h.hooksOf('damaged').filter((c) => c.source === e && c.dmg.isAttack).map((c) => c.amount);
    const scale = skb(key, 'InvisibleCombat').bb.atk_scale;
    approx(hits[0], e.s.atk * scale);
    approx(hits[1], e.s.atk);
  });
}

test(`${nm('enemy_1404_msnip')}: 直击 — a unit in line is shot (arts ATK×atk_scale) and stunned; the shooter reveals itself`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 4 }], hooks: ['statusApplied'] });
  h.step();
  const e = put(h, 'enemy_1404_msnip', [9, 8]);
  const s = skb('enemy_1404_msnip', 'CrossAttack');
  h.run(s.initCooldown + 1.5);
  const w = h.unit('t_wall');
  assert.equal(statuses(h, w.id, 'stun').length, 1);
  approx(w.stats.taken, e.s.atk * s.bb.atk_scale * (1 - 0 / 100));
  assert.ok(e.findBuff('ab:revealed') || h.b.time > s.initCooldown + s.bb.duration);
});

test(`${nm('enemy_10034_cnvsax')}: never attacks while stealthed; once blocked it counter-attacks and burns around itself`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 5 }] });
  h.step();
  const free = put(h, 'enemy_10034_cnvsax', [9, 5]);           // next to the wall, not blocked
  h.run(4);
  assert.equal(free.stats.attacks, 0);
  const e = put(h, 'enemy_10034_cnvsax', [10, 5]);             // blocked by the wall
  h.run(5);
  const w = h.unit('t_wall');
  assert.ok(e.stats.attacks > 0);
  assert.ok(w.elem.burn > 0, 'fire aura burns');
});

test(`${nm('enemy_9008_acbunn')}: attacks several targets at once while stealthed`, () => {
  const h = arena({ units: [{ chessId: 't_gun', row: 10, col: 6 }, { chessId: 't_mage', row: 11, col: 6 }, { chessId: 't_blade', row: 10, col: 7 }], captureNoisy: true, hooks: ['attack'] });
  h.step();
  const e = put(h, 'enemy_9008_acbunn', [9, 6]);
  h.runUntil(() => e.stats.attacks >= 1, 10);
  const atk = h.hooksOf('attack').find((c) => c.attacker === e);
  assert.ok(atk.targets.length >= 2, `targets ${atk.targets.length}`);
});

test(`${nm('enemy_1175_dushdo_2')}: stealth; next to 深池伙友卫队精英 its attack interval drops by traitAbility.base_attack_time`, () => {
  const h = arena();
  h.step();
  const e = put(h, 'enemy_1175_dushdo_2', [10, 6]);
  const base = e.s.interval;
  assert.ok(e.s.flags.stealth);
  put(h, 'enemy_1174_duholy_2', [10, 7]);
  h.run(1);
  approx(e.s.bat, E.enemy_1175_dushdo_2.stats.bat + tb('enemy_1175_dushdo_2', 'traitAbility.base_attack_time'), 1e-6);
  assert.ok(e.s.interval < base);
});

for (const key of ['enemy_2034_sythef', 'enemy_2034_sythef_2']) {
  test(`${nm(key)}: stealth and every attack stuns (Combat.attack@stun s)`, () => {
    const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }], hooks: ['statusApplied'] });
    h.step();
    const e = put(h, key, [9, 5]);
    assert.ok(e.s.flags.stealth);
    h.runUntil(() => e.stats.attacks >= 1, 10);
    const st = statuses(h, h.unit('t_wall').id, 'stun');
    assert.equal(st.length, 1);
    approx(st[0].duration, tb(key, 'Combat.attack@stun'));
  });
}

// ---------------------------------------------------------------------------------------------------------------
// TIMES 频次

const TIMES_KEYS = ['enemy_1196_msfyin', 'enemy_1196_msfyin_2', 'enemy_1198_msfshu', 'enemy_1198_msfshu_2', 'enemy_1200_msfjin', 'enemy_1200_msfjin_2',
  'enemy_1202_msfzhi', 'enemy_1202_msfzhi_2', 'enemy_1204_msfhu', 'enemy_1204_msfhu_2', 'enemy_1208_msfji', 'enemy_1208_msfji_2', 'enemy_1210_msfden', 'enemy_1210_msfden_2'];
for (const key of TIMES_KEYS) {
  const artsOnly = /1204/.test(key);
  test(`${nm(key)}: 频次 — needs exactly ${E[key].stats.maxHp} ${artsOnly ? 'arts/true ' : ''}hits, unblockable`, () => {
    const h = arena({ units: [{ chessId: 't_gun', row: 12, col: 3 }], hooks: ['death'], mods: { hpMul: 3 } });
    h.step();
    const e = put(h, key, [10, 7], { mods: { hpMul: 3 } });   // wave HP scaling must not change the hit count
    const n = E[key].stats.maxHp;
    assert.equal(e.s.maxHp, n);
    assert.ok(e.s.flags.unblockable);
    const g = h.unit('t_gun');
    const type = artsOnly ? 'arts' : 'phys';
    if (artsOnly) { h.b.dealDamage(g, e, { amount: 1e7, type: 'phys' }); assert.equal(e.hp, n, 'physical hits do not count'); }
    for (let i = 0; i < n - 1; i++) h.b.dealDamage(g, e, { amount: 1e7, type });
    assert.ok(e.alive);
    assert.equal(e.hp, 1);
    h.b.dealDamage(g, e, { amount: 0.01, type });
    assert.ok(!e.alive);
  });
}

for (const key of ['enemy_1200_msfjin', 'enemy_1204_msfhu', 'enemy_1288_duskls']) {
  test(`${nm(key)}: 频次 hits keep their DamageInfo — a self-excluding bonus-on-damaged attacker never recurses, death hooks fire`, () => {
    const h = arena({
      units: [{ chessId: 't_mage', row: 12, col: 3 }], hooks: ['death'],
      setup(b) {
        b.on('damaged', (c) => {
          if (!c.source || c.source.side !== 'ally' || !c.target.alive || (c.dmg.tags && c.dmg.tags.includes('bonusTest'))) return;
          b.dealDamage(c.source, c.target, { amount: 10, type: 'arts', tags: ['bonusTest'] });
        });
      },
    });
    h.step();
    const e = put(h, key, [10, 7]);
    const g = h.unit('t_mage');
    if (/duskls/.test(key)) { killed(h, e, g); assert.ok(e.alive, 'ember'); }
    const hits = e.s.maxHp;
    assert.ok(hits > 1 && hits <= 30);
    let n = 0;
    while (e.alive && n++ < 40) h.b.dealDamage(g, e, { amount: 1e7, type: 'arts', isAttack: true });
    assert.equal(n, Math.ceil(hits / 2), 'every attack + its bonus remove exactly 2 hits');
    assert.equal(h.b.errors.length, 0, JSON.stringify(h.b.errors[0]));
    assert.ok(h.hooksOf('death').some((c) => c.unit.id === e.id && c.reason === 'killed'));
    checkInvariants(h.b);
  });
}

test('茶器 (hitCountArts): physical instances remove nothing, true / elemental remove 1 each; element fills do not count', () => {
  const h = arena({ units: [{ chessId: 't_gun', row: 12, col: 3 }] });
  h.step();
  const e = put(h, 'enemy_1204_msfhu', [10, 7]);
  const g = h.unit('t_gun');
  const n = e.hp;
  for (let i = 0; i < 5; i++) h.b.dealDamage(g, e, { amount: 1e6, type: 'phys', isAttack: true });
  assert.equal(e.hp, n);
  h.b.dealDamage(g, e, { type: 'element', element: 'burn', amount: 100 });
  assert.equal(e.hp, n);
  h.b.dealDamage(g, e, { amount: 1, type: 'true' });
  h.b.dealDamage(g, e, { amount: 1, type: 'elemental' });
  assert.equal(e.hp, n - 2);
  checkInvariants(h.b);
});

const DEATH_SPAWN = { enemy_1195_sfyin: 2, enemy_1195_sfyin_2: 2, enemy_1197_sfshu: 3, enemy_1197_sfshu_2: 3, enemy_1199_sfjin: 1, enemy_1209_sfden: 1, enemy_1209_sfden_2: 1 };
for (const [key, n] of Object.entries(DEATH_SPAWN)) {
  test(`${nm(key)}: when knocked out spawns ${n}× ${E[E[key].talents.bbStr['DeadSpawn.enemy_key']].name} that continue its route`, () => {
    const h = arena();
    h.step();
    const e = put(h, key, [10, 7], { move: true });
    h.run(1);
    killed(h, e, null);
    const child = E[key].talents.bbStr['DeadSpawn.enemy_key'];
    const kids = alive(h, child);
    assert.equal(kids.length, n);
    assert.equal(kids[0].s.maxHp, E[child].stats.maxHp);
    h.run(3);
    assert.ok(kids[0].x < 7, 'the children walk on');
  });
}

for (const key of ['enemy_1207_sfji', 'enemy_1207_sfji_2']) {
  test(`${nm(key)}: each attack spends a blade (+ATK); unspent blades become 矛头 on death (at least 1)`, () => {
    const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }] });
    h.step();
    const e = put(h, key, [9, 5]);
    const base = e.s.atk;
    h.runUntil(() => e.stats.attacks >= 2, 20);
    const per = tb(key, 'Atkup.atk') ?? tb(key, 'AtkUp.atk');
    approx(e.s.atk, base * (1 + 2 * per));
    killed(h, e, null);
    const child = E[key].talents.bbStr['DeadSpawn.enemy_key'];
    assert.equal(alive(h, child).length, tb(key, 'DeadSpawn.cnt') + tb(key, 'DeadSpawn.cnt_add') * 2);
    const h2 = arena();
    h2.step();
    const e2 = put(h2, key, [10, 7]);
    killed(h2, e2, null);
    assert.equal(alive(h2, child).length, tb(key, 'DeadSpawn.cnt'));
  });
}

for (const key of ['enemy_1209_sfden', 'enemy_1209_sfden_2']) {
  test(`${nm(key)}: InvisibleShield veils nearby enemies (stealth) for the skill duration`, () => {
    const h = arena();
    h.step();
    put(h, key, [10, 7]);
    const o = put(h, 'enemy_1007_slime', [10, 6]);
    const s = skb(key, 'InvisibleShield');
    h.run(s.initCooldown + 0.1);
    assert.ok(o.s.flags.stealth);
    h.run(s.bb.duration + 0.2);
    assert.ok(!o.s.flags.stealth);
  });
}

for (const key of ['enemy_1203_sfhu', 'enemy_1203_sfhu_2']) {
  test(`${nm(key)}: death spawns 4 茶器 and leaves an ASPD-down arts blast zone`, () => {
    const h = arena({ units: [{ chessId: 't_gun', row: 10, col: 6 }] });
    h.step();
    const e = put(h, key, [10, 7]);
    killed(h, e, null);
    assert.equal(alive(h, E[key].talents.bbStr['DeadSpawn.enemy_key']).length, tb(key, 'DeadSpawn.cnt'));
    h.run(tb(key, 'DeadBoom.interval') + 0.1);
    const g = h.unit('t_gun');
    assert.ok(g.stats.taken > 0);
    approx(g.s.aspd, 100 + tb(key, 'DeadBoom.attack_speed'));
  });
}

for (const key of ['enemy_1288_duskls', 'enemy_1288_duskls_2', 'enemy_1292_duskld']) {
  test(`${nm(key)}: knocked out ⇒ stealthed ember needing ${tb(key, 'Revive[Trigger].prop_max_hp')} hits; revives at full HP after ${tb(key, 'Revive[Trigger].interval')} s`, () => {
    const h = arena({ units: [{ chessId: 't_gun', row: 12, col: 3 }] });
    h.step();
    const e = put(h, key, [10, 7]);
    const max = e.s.maxHp;
    killed(h, e, h.unit('t_gun'));
    assert.ok(e.alive);
    assert.equal(e.s.maxHp, tb(key, 'Revive[Trigger].prop_max_hp'));
    assert.ok(e.s.flags.stealth && e.profile.noAttack);
    h.run(tb(key, 'Revive[Trigger].interval') + 0.1);
    assert.equal(e.s.maxHp, max);
    assert.equal(e.hp, max);
    assert.ok(!e.s.flags.stealth);
    // an ember hit N times dies for good
    killed(h, e, null);
    for (let i = 0; i < tb(key, 'Revive[Trigger].prop_max_hp'); i++) h.b.dealDamage(null, e, { amount: 1, type: 'arts' });
    assert.ok(!e.alive);
  });
}

test(`${nm('enemy_9010_acpupp')}: knocked out ⇒ 15-hit regeneration husk that revives, and nearby enemies get a 5-hit shield`, () => {
  const h = arena();
  h.step();
  const e = put(h, 'enemy_9010_acpupp', [10, 7]);
  const o = put(h, 'enemy_1007_slime', [10, 6]);
  killed(h, e, null);
  assert.ok(e.alive);
  assert.equal(e.s.maxHp, tb('enemy_9010_acpupp', 'Revive[Trigger].prop_max_hp'));
  const hp = o.hp;
  for (let i = 0; i < tb('enemy_9010_acpupp', 'Aura.max_damage_block_cnt'); i++) h.b.dealDamage(null, o, { amount: 100, type: 'phys' });
  assert.equal(o.hp, hp, 'shield negates the hits');
  h.b.dealDamage(null, o, { amount: 100, type: 'phys' });
  assert.ok(o.hp < hp);
  h.run(tb('enemy_9010_acpupp', 'Revive[Trigger].interval') + 0.1);
  assert.equal(e.hp, E.enemy_9010_acpupp.stats.maxHp);
});

// ---------------------------------------------------------------------------------------------------------------
// ELEMENT 元素 (element damage = ATK × ep_damage_ratio per attack hit)

const EP = [
  ['enemy_1148_dssbr', 'neural', 'epdamage.attack@ep_damage_ratio'], ['enemy_1148_dssbr_2', 'neural', 'epdamage.attack@ep_damage_ratio'],
  ['enemy_1305_mhslim', 'burn', 'EpDamage.attack@ep_damage_ratio'], ['enemy_1305_mhslim_2', 'burn', 'EpDamage.attack@ep_damage_ratio'],
  ['enemy_2021_syfish', EROSION, 'EpDamage.attack@ep_damage_ratio'], ['enemy_1229_darmy', 'apoptosis', 'epdamage.attack@ep_damage_ratio'],
  ['enemy_1229_darmy_2', 'apoptosis', 'epdamage.attack@ep_damage_ratio'], ['enemy_2009_csaudc', 'neural', 'combat.attack@ep_damage_ratio'],
  ['enemy_10094_crstf', 'neural', 'ep.ep_damage_ratio'], ['enemy_10098_crhro', 'neural', 'inside.attack@ep_damage_ratio'],
  ['enemy_10099_crvln', 'neural', 'inside.attack@ep_damage_ratio'], ['enemy_1183_mlasrt', EROSION, 'EpDamage.attack@ep_damage_ratio'],
];
for (const [key, el, k] of EP) {
  test(`${nm(key)}: attacks add ATK×${tb(key, k)} ${el === EROSION ? '侵蚀 (erosion)' : el} to the target's gauge`, () => {
    const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }] });
    h.step();
    const e = put(h, key, [9, 5]);
    h.runUntil(() => e.stats.attacks >= 1, 20);
    h.run(0.6);   // projectile flight
    approx(h.unit('t_wall').elem[el], e.s.atk * tb(key, k) * e.stats.attacks, 1e-6, key);
  });
}

test('侵蚀 burst: 1000 erosion permanently lowers DEF by 100 and deals 800 physical damage (official term)', () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }] });
  h.step();
  const w = h.unit('t_wall');
  const src = put(h, 'enemy_2021_syfish', [11, 8]);
  h.b.addBuff(w, { key: 'test:def', mods: { defFlat: 300 } });
  const hp = w.hp;
  enemiesMod.elem(h.b, src, w, 'erosion', 1000);
  h.step(2);
  assert.ok(!w.findBuff('necrosisBurst'));
  assert.equal(w.s.def, 300 - EROSION_BURST.defDown);
  approx(hp - w.hp, EROSION_BURST.physDamage - (300 - EROSION_BURST.defDown), 1e-6);
});

test(`${nm('enemy_1158_divman')}: in deep water ATK +Swim.atk and stealth; immune to the deep-water damage`, () => {
  const rows = { 10: '##hddddrrrfrrrrrrrf##' };
  const h = arena({ flat: { rows } });
  h.step();
  const e = put(h, 'enemy_1158_divman', [10, 4]);
  const dry = put(h, 'enemy_1158_divman', [11, 7]);
  h.run(0.5);
  approx(e.s.atk, dry.s.atk * (1 + tb('enemy_1158_divman', 'Swim.atk')));
  assert.ok(e.s.flags.stealth && !dry.s.flags.stealth);
  h.b.dealDamage(null, e, { amount: 40, type: 'true', tags: ['terrain'] });
  assert.equal(e.hp, e.s.maxHp);
});

for (const key of ['enemy_1160_hvyslr', 'enemy_1160_hvyslr_2']) {
  // enemy SP +1 per attack: spCost 3 ⇒ "攻击3次后，下一次攻击" = the 4th (the official 粉碎攻坚手 text pins spCost 2 ⇒ 3rd)
  test(`${nm(key)}: after ${skb(key, 'stuncombat').spCost} attacks the next one stuns its blocker (${skb(key, 'stuncombat').bb.stun} s); loses Drown.damage HP/s in deep water`, () => {
    const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }], hooks: ['statusApplied'], flat: { rows: { 11: '##hddddrrrfrrrrrrrf##' } } });
    h.step();
    const e = put(h, key, [9, 5]);
    const n = skb(key, 'stuncombat').spCost + 1;
    assert.equal(enemiesMod.nthOf(e.mem.ab.sk.stuncombat), n);
    h.runUntil(() => e.stats.attacks >= n - 1, 60);
    assert.equal(statuses(h, h.unit('t_wall').id, 'stun').length, 0);
    h.runUntil(() => e.stats.attacks >= n, 30);
    const st = statuses(h, h.unit('t_wall').id, 'stun');
    assert.equal(st.length, 1);
    approx(st[0].duration, skb(key, 'stuncombat').bb.stun);
    const wet = put(h, key, [11, 4]);
    h.run(1);
    approx(wet.s.maxHp - wet.hp, tb(key, 'Drown.damage'), 0.02);
  });
}

test(`${nm('enemy_1160_hvyslr')}: silenced, its stun attack (SILENCE-flagged) never comes`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }], hooks: ['statusApplied'] });
  h.step();
  const e = put(h, 'enemy_1160_hvyslr', [9, 5]);
  h.b.applyStatus(e, 'silence', { duration: 60 });
  h.runUntil(() => e.stats.attacks >= 8, 60);
  assert.equal(statuses(h, h.unit('t_wall').id, 'stun').length, 0);
});

for (const key of ['enemy_1161_tidmag', 'enemy_1161_tidmag_2', 'enemy_1162_magmot']) {
  test(`${nm(key)}: attack hits the target and the 4 neighbouring tiles, adding erosion to each`, () => {
    const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }, { chessId: 't_wall2', row: 10, col: 5 }, { chessId: 't_wall3', row: 11, col: 5 }] });
    h.step();
    const e = put(h, key, [9, 5]);
    h.runUntil(() => e.stats.attacks >= 1, 20);
    h.run(0.6);
    const ratio = tb(key, 'EpDamage.attack@ep_damage_ratio');
    approx(h.unit('t_wall2').elem[EROSION], e.s.atk * ratio);
    assert.equal(h.unit('t_wall3').stats.taken, 0, 'two tiles away: not hit');
    if (key === 'enemy_1162_magmot') { killed(h, e, null); assert.equal(alive(h, 'enemy_1161_tidmag').length, 1); }
  });
}

test(`${nm('enemy_2025_syufo')}: 近地悬浮 — unblockable, immune to melee attacks; erosion on hit`, () => {
  const h = arena({ units: [{ chessId: 't_blade', row: 10, col: 6 }, { chessId: 't_gun', row: 12, col: 3 }] });
  h.step();
  const e = put(h, 'enemy_2025_syufo', [10, 6]);
  assert.ok(e.s.flags.unblockable);
  h.run(3);
  assert.ok(!e.blockedBy);
  assert.equal(h.unit('t_blade').stats.dmg, 0);
  assert.ok(h.unit('t_gun').stats.dmg > 0);
  put(h, 'enemy_1007_slime', [10, 7]);
  h.run(3);
  assert.ok(h.unit('t_blade').stats.dmg > 0, 'the melee operator hits another enemy instead');
  assert.ok(h.unit('t_blade').elem[EROSION] > 0 || h.unit('t_gun').elem[EROSION] > 0);
});

test(`${nm('enemy_1275_dwlock_2')}: apoptosis on hit; DeathEye channels arts damage then bursts apoptosis ATK×2 on the group`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }, { chessId: 't_wall2', row: 10, col: 5 }] });
  h.step();
  const e = put(h, 'enemy_1275_dwlock_2', [9, 7]);
  const s = skb('enemy_1275_dwlock_2', 'DeathEye');
  h.run(s.initCooldown + s.bb.hit_duration + 1);
  assert.ok(h.eventsOf('fx').some((f) => f[1] === 'beam' && f[4].kind === 'deathEye'));
  const w2 = h.unit('t_wall2');
  assert.ok(w2.elem.apoptosis >= e.s.atk * s.bb.ep_damage_ratio - 1e-6 || w2.findBuff('apoptosisBurst'));
});

for (const key of ['enemy_1439_dslntf', 'enemy_1439_dslntf_2']) {
  test(`${nm(key)}: first damage ⇒ combat state (move ×${tb(key, '0.move_speed')}) and a neural pulse around it every s`, () => {
    const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 5 }] });
    h.step();
    const e = put(h, key, [10, 7], { move: true });
    const v0 = e.s.moveSpeed;
    h.b.dealDamage(null, e, { amount: 1, type: 'true' });
    approx(e.s.moveSpeed, v0 * tb(key, '0.move_speed'));
    h.run(1.05);
    approx(h.unit('t_wall').elem.neural, e.s.atk * tb(key, '1.ep_damage_ratio'), 1e-6);
  });
}

test(`${nm('enemy_9007_acelem')}: harder to target (taunt −1); parasitises its blocker (arts/s, element damage taken ×)`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }] });
  h.step();
  const e = put(h, 'enemy_9007_acelem', [9, 5]);
  assert.equal(e.s.taunt, -1);
  h.run(2.6);
  const w = h.unit('t_wall');
  assert.ok(w.findBuff('ab:parasite'));
  approx(w.s.elemTakenMul, tb('enemy_9007_acelem', '1.ep_damage_scale'));
  approx(w.stats.taken, 2 * e.s.atk * tb('enemy_9007_acelem', '1.atk_scale'), 1e-6);
  killed(h, e, null);
  assert.ok(!w.findBuff('ab:parasite'));
});

test(`${nm('enemy_10067_ftsjc')} + ${nm('enemy_10065_ftzlc')}: ATK ramps until the first attack (AoE arts + burn); ignites 卷心籽, whose ignited death blasts`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }, { chessId: 't_wall2', row: 10, col: 5 }] });
  h.step();
  const cab0 = put(h, 'enemy_10065_ftzlc', [11, 8]);
  killed(h, cab0, null);                                       // not ignited: no blast
  assert.equal(h.unit('t_wall2').stats.taken, 0);
  const v = put(h, 'enemy_10067_ftsjc', [10, 8]);
  const base = v.s.atk;
  h.run(10);
  approx(v.s.atk, base * (1 + tb('enemy_10067_ftsjc', 'pow.add_max_atk') * Math.min(1, 10 / tb('enemy_10067_ftsjc', 'pow.time'))), 0.01);
  const cab = put(h, 'enemy_10065_ftzlc', [9, 6]);
  h.b.relocate(h.unit('t_wall'), 9, 7);
  v.x = 7; v.y = 9;                                             // bring the vine to the wall
  h.runUntil(() => v.stats.attacks >= 1, 10);
  assert.ok(h.unit('t_wall').elem.burn > 0);
  assert.ok(!v.findBuff('ab:pow'), 'ramp ends at the first attack');
  assert.ok(cab.mem.ab.ignited);
  const t0 = h.unit('t_wall').stats.taken;
  killed(h, cab, null);
  assert.ok(h.unit('t_wall').stats.taken > t0, 'ignited cabbage explodes');
});

// ---------------------------------------------------------------------------------------------------------------
// DOT 持续

for (const key of ['enemy_1234_dsubrl', 'enemy_1234_dsubrl_2']) {
  test(`${nm(key)}: pulses hit every ally in range with neural damage; 抵抗 halves stun; immune to 停顿`, () => {
    const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }, { chessId: 't_wall2', row: 10, col: 8 }] });
    h.step();
    const e = put(h, key, [10, 7]);
    h.run(1.2);
    for (const id of ['t_wall', 't_wall2']) assert.ok(h.unit(id).elem.neural > 0 && h.unit(id).stats.taken > 0, id);
    approx(h.b.resistOf(e), -tb(key, 'Buff.one_minus_status_resistance'), 1e-12, '抵抗 = the engine resist status (talent value)');
    h.b.applyStatus(e, 'stun', { duration: 4 });
    approx(e.findBuff('stun').timeLeft, 2);
    assert.equal(h.b.applyStatus(e, 'sluggish', { duration: 4 }), false);
  });
}

for (const key of ['enemy_1267_nhpbr', 'enemy_1267_nhpbr_2']) {
  test(`${nm(key)}: death releases 污染秽蚀 — ground allies within ${tb(key, 'PollutedDie.projectile_range')} lose ${tb(key, 'PollutedDie.polluted_damage_low')} HP/s`, () => {
    const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }] });
    h.step();
    const e = put(h, key, [10, 7]);
    killed(h, e, null);
    h.run(3.05);
    approx(h.unit('t_wall').stats.taken, 3 * tb(key, 'PollutedDie.polluted_damage_low'));
  });
}

for (const key of ['enemy_1270_nhstlk', 'enemy_1270_nhstlk_2']) {
  test(`${nm(key)}: attacks inflict bleeding (${tb(key, 'Bleeding.attack@bleeding_damage')} arts/s), removed by healing`, () => {
    const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }] });
    h.step();
    const e = put(h, key, [9, 5]);
    h.runUntil(() => e.stats.attacks >= 1, 10);
    const w = h.unit('t_wall');
    assert.ok(w.findBuff('ab:bleed'));
    killed(h, e, null);
    const t0 = w.stats.taken;
    h.run(2);
    approx(w.stats.taken - t0, 2 * tb(key, 'Bleeding.attack@bleeding_damage'));
    h.b.heal(h.unit('t_wall'), w, 1);
    assert.ok(!w.findBuff('ab:bleed'));
  });
}

for (const key of ['enemy_1272_nhtank', 'enemy_1272_nhtank_2']) {
  test(`${nm(key)}: ground targets only, melee hits ×${tb(key, 'Empty.attack@chuang_atk_scale')}, every 3rd attack leaves a pollution zone`, () => {
    const hi = arena({ units: [{ chessId: 't_gun', row: 10, col: 2 }] });   // (10,2) is high ground
    hi.step();
    put(hi, key, [10, 3]);
    hi.run(6);
    assert.equal(hi.unit('t_gun').stats.taken, 0);
    const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }], captureNoisy: true, hooks: ['damaged'] });
    h.step();
    const e = put(h, key, [9, 5]);
    h.runUntil(() => e.stats.attacks >= 3, 30);
    const hits = h.hooksOf('damaged').filter((c) => c.source === e && c.dmg.isAttack).map((c) => c.amount);
    assert.ok(hits.some((a) => Math.abs(a - e.s.atk * tb(key, 'Empty.attack@chuang_atk_scale')) < 1e-6), `${hits}`);
    assert.ok(h.eventsOf('fx').some((f) => f[1] === 'zone' && f[4].kind === 'pollution'));
  });
}

test(`${nm('enemy_9006_actoxi')}: when knocked out it throws a poison cloud at its killer (arts ATK×0.15/s)`, () => {
  const h = arena({ units: [{ chessId: 't_gun', row: 11, col: 4 }] });
  h.step();
  const e = put(h, 'enemy_9006_actoxi', [10, 7]);
  const g = h.unit('t_gun');
  const atk = e.s.atk;
  killed(h, e, g);
  h.run(3.1);
  const per = atk * tb('enemy_9006_actoxi', '1.damage_atk_scale');
  assert.ok(g.stats.taken >= 2 * per - 1e-6 && g.stats.taken <= 3 * per + 1e-6, `${g.stats.taken}`);
});

test(`${nm('enemy_10122_uacann_2')}: each hit leaves a burning zone (${tb('enemy_10122_uacann_2', 'ProjectileBoomRange.attack@value')}/s)`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 3 }] });
  h.step();
  const e = put(h, 'enemy_10122_uacann_2', [10, 9]);
  h.runUntil(() => e.stats.attacks >= 1, 10);
  h.run(2);
  assert.ok(h.eventsOf('fx').some((f) => f[1] === 'zone' && f[4].kind === 'burning'));
  assert.ok(h.unit('t_wall').stats.taken >= e.s.atk + tb('enemy_10122_uacann_2', 'ProjectileBoomRange.attack@value') - 1e-6);
});

test(`${nm('enemy_10054_cjhot')}: pulses arts + burn around itself; immune to 停顿`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }] });
  h.step();
  const e = put(h, 'enemy_10054_cjhot', [10, 7]);
  h.run(e.base.bat + 0.1);
  assert.ok(h.unit('t_wall').elem.burn > 0 && h.unit('t_wall').stats.taken > 0);
  assert.equal(h.b.applyStatus(e, 'sluggish', { duration: 3 }), false);
});

// ---------------------------------------------------------------------------------------------------------------
// REFLECTION 折射

for (const key of ['enemy_1165_duhond', 'enemy_1165_duhond_2', 'enemy_1166_dusbr', 'enemy_1166_dusbr_2', 'enemy_1168_dumage', 'enemy_1168_dumage_2', 'enemy_1170_dushld', 'enemy_1170_dushld_2']) {
  test(`${nm(key)}: 折射 — RES +${tb(key, 'refracting.magic_resistance')} while not silenced`, () => {
    const h = arena();
    h.step();
    const e = put(h, key, [10, 7]);
    h.step();
    assert.equal(e.s.res, Math.min(100, E[key].stats.res + tb(key, 'refracting.magic_resistance')));
    h.b.applyStatus(e, 'silence', { duration: 2 });
    h.step();
    assert.equal(e.s.res, E[key].stats.res);
    h.run(2.1);
    assert.equal(e.s.res, Math.min(100, E[key].stats.res + tb(key, 'refracting.magic_resistance')));
  });
}

for (const key of ['enemy_1169_duphlx', 'enemy_1169_duphlx_2']) {
  test(`${nm(key)}: refraction; DEF +${tb(key, 'auraDefup.def')} per other ${E[key].name} nearby (stacking)`, () => {
    const h = arena();
    h.step();
    const a = put(h, key, [10, 7]);
    put(h, key, [10, 6]);
    put(h, key, [11, 7]);
    h.run(0.6);
    assert.equal(a.s.def, E[key].stats.def + 2 * tb(key, 'auraDefup.def'));
    assert.ok(a.s.res >= 70);
  });
}

for (const key of ['enemy_1172_dugago', 'enemy_1172_dugago_2']) {
  test(`${nm(key)}: first knock-out ⇒ statue (DEF +${tb(key, 'stone.def')}) for ${tb(key, 'stone.duration')} s, then reborn as a flyer`, () => {
    const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 7 }] });
    h.step();
    const e = put(h, key, [10, 7]);
    h.step();
    killed(h, e, null);
    assert.ok(e.alive);
    assert.equal(e.s.def, E[key].stats.def + tb(key, 'stone.def'));
    h.run(tb(key, 'stone.duration') + 0.5);
    assert.equal(e.motion, 'FLY');
    assert.ok(!e.blockedBy);
    killed(h, e, null);
    assert.ok(!e.alive, 'second knock-out is final');
  });
}

for (const key of ['enemy_1174_duholy', 'enemy_1174_duholy_2']) {
  test(`${nm(key)}: refraction + taunt; with 影刃 nearby its force field lowers operators' ASPD by ${-tb(key, 'traitAbility.attack_speed')}`, () => {
    const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }] });
    h.step();
    const e = put(h, key, [10, 7]);
    h.run(0.6);
    assert.equal(h.unit('t_wall').s.aspd, 100);
    assert.equal(e.s.taunt, 1);
    put(h, 'enemy_1175_dushdo_2', [11, 7]);
    h.run(0.6);
    assert.equal(h.unit('t_wall').s.aspd, 100 + tb(key, 'traitAbility.attack_speed'));
  });
}

test(`${nm('enemy_9011_acrefr')}: refraction also doubles max HP while active`, () => {
  const h = arena();
  h.step();
  const e = put(h, 'enemy_9011_acrefr', [10, 7]);
  h.step();
  assert.equal(e.s.maxHp, E.enemy_9011_acrefr.stats.maxHp * (1 + tb('enemy_9011_acrefr', 'Refracting.max_hp')));
  assert.equal(e.s.res, 70);
  h.b.applyStatus(e, 'silence', { duration: 1 });
  h.step();
  assert.equal(e.s.maxHp, E.enemy_9011_acrefr.stats.maxHp);
});

// ---------------------------------------------------------------------------------------------------------------
// FLY 飞行

test(`${nm('enemy_1017_defdrn')}: nearby enemies get DEF +${tb('enemy_1017_defdrn', 'defup.def')} (silence stops it)`, () => {
  const h = arena();
  h.step();
  const d = put(h, 'enemy_1017_defdrn', [10, 7], { route: 2 });
  const o = put(h, 'enemy_1007_slime', [10, 6]);
  h.run(0.6);
  assert.equal(o.s.def, tb('enemy_1017_defdrn', 'defup.def'));
  h.b.applyStatus(d, 'silence', { duration: 3 });
  h.run(1);
  assert.equal(o.s.def, 0);
});

for (const key of ['enemy_1355_mrfly', 'enemy_1355_mrfly_2']) {
  test(`${nm(key)}: nearby enemies get RES +${tb(key, 'magdef_add.magic_resistance')}`, () => {
    const h = arena();
    h.step();
    put(h, key, [10, 7]);
    const o = put(h, 'enemy_1007_slime', [10, 6]);
    h.run(0.6);
    assert.equal(o.s.res, tb(key, 'magdef_add.magic_resistance'));
  });
}

test(`${nm('enemy_1042_frostd')}: operators within ${tb('enemy_1042_frostd', 'defup.range_radius')} tiles lose 50 ASPD`, () => {
  const h = arena({ units: [{ chessId: 't_gun', row: 10, col: 6 }, { chessId: 't_mage', row: 12, col: 3 }] });
  h.step();
  put(h, 'enemy_1042_frostd', [10, 7]);
  h.run(0.6);
  assert.equal(h.unit('t_gun').s.aspd, 100 + tb('enemy_1042_frostd', 'atkSpeedDown.attack_speed') * 100);
  assert.equal(h.unit('t_mage').s.aspd, 100);
});

test(`${nm('enemy_1040_bombd')}: no normal attack; ONE bomb on the target + its 8 tiles, then move speed ×${skb('enemy_1040_bombd', 'boomb').bb.move_speed}`, () => {
  // PRTS 暴鸰: "不进行普通攻击" · 投弹 "对目标及其周围八格的我方单位造成100%物理伤害 … 技能结束后移速最终提升至200% ※此技能仅能触发一次"
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 5 }, { chessId: 't_wall2', row: 10, col: 6 }, { chessId: 't_wall3', row: 12, col: 6 }] });
  h.step();
  const e = put(h, 'enemy_1040_bombd', [10, 7], { route: 2 });
  const s = skb('enemy_1040_bombd', 'boomb');
  h.run(s.initCooldown + 0.2);
  const [w1, w2, w3] = ['t_wall', 't_wall2', 't_wall3'].map((id) => h.unit(id));
  approx(w2.stats.taken, e.s.atk, 1e-6, 'the target (latest deployed in range): 100 % ATK');
  approx(w1.stats.taken, e.s.atk, 1e-6, 'a tile next to it: splash 100 %');
  assert.equal(w3.stats.taken, 0, 'two rows away: outside the 3×3');
  assert.equal(e.stats.attacks, 0, 'never a normal attack');
  approx(e.findBuff('ab:bombRun').mods.moveMul, s.bb.move_speed, 1e-9, '移速最终提升至200%');
  h.run(20);
  approx(w2.stats.taken + w1.stats.taken, 2 * e.s.atk, 1e-6, 'only once');
  assert.equal(e.stats.attacks, 0);
});

for (const key of ['enemy_10083_hlbird', 'enemy_10084_hlegle', 'enemy_10085_hllevi_2']) {
  test(`${nm(key)}: first time below half HP ⇒ fear ${tb(key, 'SelfFear.fear')} s and flees faster`, () => {
    const h = arena({ hooks: ['statusApplied'] });
    h.step();
    const e = put(h, key, [10, 7], { route: 2 });
    h.b.dealDamage(null, e, { amount: e.s.maxHp * 0.6, type: 'true' });
    const f = statuses(h, e.id, 'fear');
    assert.equal(f.length, 1);
    approx(f[0].duration, tb(key, 'SelfFear.fear'));
    assert.ok(e.findBuff('ab:fearRun'));
    approx(e.findBuff('ab:fearRun').mods.moveMul, tb(key, 'SelfFear.move_speed'), 1e-9, '移动速度最终提升至150%');
    h.b.dealDamage(null, e, { amount: 1, type: 'true' });
    assert.equal(statuses(h, e.id, 'fear').length, 1, 'only once');
  });
}

test(`${nm('enemy_10084_hlegle')}: steals one bullet from an ammo skill instead of hitting`, () => {
  const h = arena({ units: [{ chessId: 't_gun', row: 10, col: 6 }] });
  h.step();
  const g = h.unit('t_gun');
  g.skill.kind = 'ammo'; g.skill.active = true; g.skill.ammoLeft = 3;
  const e = put(h, 'enemy_10084_hlegle', [10, 7], { route: 2 });
  h.runUntil(() => e.stats.attacks >= 1, 10);
  h.run(0.5);
  assert.equal(g.skill.ammoLeft, 3 - tb('enemy_10084_hlegle', 'DamageOrBullet.attack@minus_bullet'));
  assert.equal(g.stats.taken, 0);
  g.skill.active = false;
});

test(`${nm('enemy_10085_hllevi_2')}: 祈祷邀约 lowers every operator's ASPD by ${-skb('enemy_10085_hllevi_2', 'Roar').bb.attack_speed}`, () => {
  const h = arena({ units: [{ chessId: 't_gun', row: 12, col: 3 }] });
  h.step();
  put(h, 'enemy_10085_hllevi_2', [10, 7], { route: 2 });
  const s = skb('enemy_10085_hllevi_2', 'Roar');
  h.run(s.initCooldown + 0.1);
  assert.equal(h.unit('t_gun').s.aspd, 100 + s.bb.attack_speed);
});

test(`${nm('enemy_1407_hummbd')}: death exposes nearby operators (damage taken ×${tb('enemy_1407_hummbd', 'Expose.damage_scale')} for ${tb('enemy_1407_hummbd', 'Expose.weak[limit]')} s)`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }, { chessId: 't_wall2', row: 12, col: 3 }] });
  h.step();
  const e = put(h, 'enemy_1407_hummbd', [10, 7], { route: 2 });
  killed(h, e, null);
  approx(h.unit('t_wall').s.dmgTakenMul, tb('enemy_1407_hummbd', 'Expose.damage_scale'));
  assert.equal(h.unit('t_wall2').s.dmgTakenMul, 1);
});

test(`${nm('enemy_9009_acfort')}: grabs ≤ 3 normal flyers within 2.5 × range_radius for ammo, then fires one ATK×1.3 hit per ammo at random allies`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 5 }, { chessId: 't_wall2', row: 12, col: 2 }] });
  h.step();
  const e = put(h, 'enemy_9009_acfort', [10, 7], { route: 2 });
  e.profile.noAttack = true;
  const k = skb('enemy_9009_acfort', 'KillOthers'), f = skb('enemy_9009_acfort', 'FireWeapon');
  const R = k.bb.range_radius * 2.5;                                   // PRTS: 半径3.75 (2.5倍可变半径)
  assert.equal(R, 3.75);
  // four prey inside 3.75 (the nearest three are taken), one outside
  const near = [[10, 7], [11, 7], [10, 9], [12, 10]].map((p) => put(h, 'enemy_1005_yokai', p, { route: 2 }));
  const out = put(h, 'enemy_1005_yokai', [9, 2], { route: 2 });
  assert.ok(Math.hypot(out.x - e.x, out.y - e.y) > R && Math.hypot(near[3].x - e.x, near[3].y - e.y) <= R);
  h.run(k.initCooldown + 0.1);
  assert.ok(e.findBuff('ab:grabbing')?.flags.bind, '黑云 holds still while grabbing');
  h.run(0.5 + k.bb.duration + 0.1);
  assert.deepEqual(near.map((y) => y.alive), [false, false, false, true], 'the nearest three are devoured');
  assert.ok(out.alive, 'out of reach');
  const w1 = h.unit('t_wall'), w2 = h.unit('t_wall2');
  // 全弹发射 fires as soon as it has ammo: 3 hits of ATK×1.3, each on a random ally of the whole field
  assert.ok(h.runUntil(() => w1.stats.taken + w2.stats.taken > 0, f.cooldown + 1));
  h.run(0.1);
  approx(w1.stats.taken + w2.stats.taken, 3 * e.s.atk * f.bb.atk_scale, 1e-6, 'one hit per ammo');
  assert.equal(e.mem.ab.ammo, 0, 'all SP spent');
  checkInvariants(h.b);
});

test(`${nm('enemy_1112_emppnt')} / 中枢: every attack is a shell that lands 3 s later on the target's spot (all allies within 1.2)`, () => {
  for (const key of ['enemy_1112_emppnt', 'enemy_1112_emppnt_2']) {
    const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }, { chessId: 't_wall2', row: 11, col: 6 }, { chessId: 't_wall3', row: 12, col: 6 }], captureNoisy: true });
    h.step();
    const e = put(h, key, [10, 7], { route: 2 });
    assert.ok(h.runUntil(() => e.stats.attacks >= 1, 10), 'attacks');
    const [w1, w2, w3] = ['t_wall', 't_wall2', 't_wall3'].map((id) => h.unit(id));
    const t0 = h.b.time;
    assert.equal(w1.stats.taken + w2.stats.taken + w3.stats.taken, 0, 'nothing on launch');
    assert.ok(h.events.some((ev) => ev[0] === 'atk' && ev[1] === e.id && ev[3] === 'mortar'), 'attack event without a projectile');
    const shell = h.eventsOf('fx').find((ev) => ev[1] === 'bombardShell');
    assert.ok(shell, 'the shell fx (3 s flight)');
    h.run(2.8);
    assert.equal(w1.stats.taken + w2.stats.taken + w3.stats.taken, 0, 'still in the air');
    h.run(0.3);
    const hit = [w1, w2, w3].filter((w) => w.stats.taken > 0);
    // the target (latest deployed in range 2) is t_wall3 or t_wall2; the blast covers every wall within 1.2 of it
    assert.ok(hit.length >= 2 && hit.every((w) => Math.abs(w.stats.taken - e.s.atk) < 1e-6), `${key}: ${hit.map((w) => w.defId)}`);
    assert.ok(h.b.time - t0 >= 3 - 1e-6);
  }
});

test(`${nm('enemy_10084_hlegle')}: never attacks a flying ally (不会攻击飞行单位) — a ground one in range instead`, () => {
  // a flying ally (the 炎佑 is one) deployed after the wall, so the engine's order (latest deployed) would pick it
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }, { chessId: 't_wall2', row: 10, col: 8 }] });
  h.step();
  const w = h.unit('t_wall'), fly = h.unit('t_wall2');
  fly.motion = 'FLY';
  assert.ok(fly.isFlying && fly.deploySeq > w.deploySeq);
  const e = put(h, 'enemy_10084_hlegle', [10, 7], { route: 2 });
  assert.ok(h.runUntil(() => e.stats.attacks >= 1, 10));
  h.run(0.5);
  assert.equal(fly.stats.taken ?? 0, 0, 'the flyer is never hit');
  assert.ok(w.stats.taken > 0, 'the ground wall is');
});

test(`${nm('enemy_1321_wdarft')} + ${nm('enemy_1269_nhfly')}: the apostle spawns seeds that dive onto operators and self-destruct`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 4 }] });
  h.step();
  put(h, 'enemy_1321_wdarft', [9, 8], { route: 2, move: true });
  h.run(skb('enemy_1321_wdarft', 'BornBugs').initCooldown + 0.1);
  const seeds = alive(h, 'enemy_1269_nhfly');
  assert.ok(seeds.length > 0);
  h.runUntil(() => seeds.some((s) => !s.alive), 60);
  assert.ok(seeds.some((s) => !s.alive), 'a seed self-destructed');
  approx(h.unit('t_wall').stats.taken % E.enemy_1269_nhfly.stats.atk, 0, 1e-6);
  assert.ok(h.unit('t_wall').stats.taken > 0);
});

// ---------------------------------------------------------------------------------------------------------------
// SPECIAL and others

for (const key of ['enemy_1045_hammer', 'enemy_1045_hammer_2']) {
  test(`${nm(key)}: after 2 attacks the next one stuns (${skb(key, 'stuncombat').bb.stun} s)`, () => {
    const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }], hooks: ['statusApplied'] });
    h.step();
    const e = put(h, key, [9, 5]);
    h.runUntil(() => e.stats.attacks >= 2, 20);
    assert.equal(statuses(h, h.unit('t_wall').id, 'stun').length, 0);
    h.runUntil(() => e.stats.attacks >= 3, 20);
    assert.equal(statuses(h, h.unit('t_wall').id, 'stun').length, 1);
  });
}

for (const key of ['enemy_1116_liprr', 'enemy_1116_liprr_2', 'enemy_1118_lidbox_2', 'enemy_1119_vofsd', 'enemy_1121_lifbos', 'enemy_1121_lifbos_2']) {
  test(`${nm(key)}: confined (ASPD ${tb(key, 'confinement.attack_speed')}) until ${tb(key, 'confinement.times')} attacks, then freed (ATK +${tb(key, 'liberty.atk') * 100} %)`, () => {
    const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }] });
    h.step();
    const e = put(h, key, [9, 5]);
    const other = put(h, 'enemy_1116_liprr', [11, 8]);
    assert.equal(e.s.aspd, 100 + tb(key, 'confinement.attack_speed'));
    if (tb(key, 'confinement.def')) assert.equal(e.s.def, E[key].stats.def + tb(key, 'confinement.def'));
    h.runUntil(() => e.stats.attacks >= tb(key, 'confinement.times'), 60);
    assert.equal(e.s.aspd, 100);
    approx(e.s.atk, E[key].stats.atk * (1 + tb(key, 'liberty.atk')));
    if (tb(key, 'liberty.def_penetrate')) approx(e.s.defIgnorePct, tb(key, 'liberty.def_penetrate'));
    if (tb(key, 'liberty.magic_resistance')) assert.equal(e.s.res, tb(key, 'liberty.magic_resistance'));
    if (tb(key, 'liberty.hp_recovery_per_sec')) assert.equal(e.s.hpRegen, tb(key, 'liberty.hp_recovery_per_sec'));
    const freeAll = /1121/.test(key);
    assert.equal(!other.findBuff('ab:confined'), freeAll, 'first liberation of 重犯 frees every prisoner');
  });
}

test(`${nm('enemy_1072_dlancer')}: accelerates while walking; the first hit after being blocked scales with the build-up`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 3 }], captureNoisy: true, hooks: ['damaged'] });
  h.step();
  const e = put(h, 'enemy_1072_dlancer', [9, 10], { move: true });
  h.run(3);
  assert.ok(e.s.moveSpeed > E.enemy_1072_dlancer.stats.moveSpeed * 2);
  h.runUntil(() => e.stats.attacks >= 2, 120);
  const hits = h.hooksOf('damaged').filter((c) => c.source === e && c.dmg.isAttack).map((c) => c.amount);
  assert.ok(hits[0] > hits[1] * 1.5, `${hits[0]} vs ${hits[1]}`);
  approx(hits[1], e.s.atk);
});

test(`${nm('enemy_1320_wdrrl_2')}: only blockers with block ≥3; first attack splashes ATK×${tb('enemy_1320_wdrrl_2', 'AOEAttack.atk_scale')} around the target`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }, { chessId: 't_wall2', row: 10, col: 5 }], chess: { t_wall: WALL('t_wall', { block: 2 }) } });
  h.step();
  const e = put(h, 'enemy_1320_wdrrl_2', [9, 5]);
  h.step(2);
  assert.ok(!e.blockedBy, 'block 2 cannot hold it');
  const h2 = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }, { chessId: 't_wall2', row: 10, col: 5 }] });
  h2.step();
  const e2 = put(h2, 'enemy_1320_wdrrl_2', [9, 5]);
  h2.runUntil(() => e2.stats.attacks >= 2, 20);
  approx(h2.unit('t_wall2').stats.taken, e2.s.atk * tb('enemy_1320_wdrrl_2', 'AOEAttack.atk_scale'));
});

test(`${nm('enemy_1302_ymtro_2')}: only blockers with block ≥4`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }] });
  h.step();
  const e = put(h, 'enemy_1302_ymtro_2', [9, 5]);
  h.step(2);
  assert.equal(e.blockWeight, 4);
  assert.ok(!e.blockedBy);
});

for (const key of ['enemy_1329_cbshld', 'enemy_1329_cbshld_2']) {
  test(`${nm(key)}: DEF/RES drop with every damage instance (−${-tb(key, 'def_reduce.def')} DEF over ${tb(key, 'def_reduce.max_stack_cnt')} hits)`, () => {
    const h = arena();
    h.step();
    const e = put(h, key, [10, 7]);
    for (let i = 0; i < 10; i++) h.b.dealDamage(null, e, { amount: 1, type: 'true' });
    const max = tb(key, 'def_reduce.max_stack_cnt');
    approx(e.s.def, E[key].stats.def + (10 * tb(key, 'def_reduce.def')) / max);
    for (let i = 0; i < max + 10; i++) h.b.dealDamage(null, e, { amount: 1, type: 'true' });
    assert.equal(e.s.def, Math.max(0, E[key].stats.def + tb(key, 'def_reduce.def')));
  });
}

test(`${nm('enemy_1249_lysdb_2')}: negates one physical or arts hit`, () => {
  const h = arena();
  h.step();
  const e = put(h, 'enemy_1249_lysdb_2', [10, 7]);
  h.b.dealDamage(null, e, { amount: 5000, type: 'arts' });
  assert.equal(e.hp, e.s.maxHp);
  h.b.dealDamage(null, e, { amount: 1000, type: 'phys' });
  assert.ok(e.hp < e.s.maxHp);
});

test(`${nm('enemy_1402_tgshd_2')}: attackers are exposed (damage taken ×${tb('enemy_1402_tgshd_2', 'Expose.damage_scale')} for ${tb('enemy_1402_tgshd_2', 'Expose.weak[limit]')} s)`, () => {
  const h = arena({ units: [{ chessId: 't_gun', row: 11, col: 4 }] });
  h.step();
  put(h, 'enemy_1402_tgshd_2', [10, 7]);
  h.run(1.1);
  const g = h.unit('t_gun');
  approx(g.s.dmgTakenMul, tb('enemy_1402_tgshd_2', 'Expose.damage_scale'));
});

test(`${nm('enemy_1081_sotisd')}: taunt +${tb('enemy_1081_sotisd', 'taunt.taunt_level')} (operators prefer it)`, () => {
  const h = arena({ units: [{ chessId: 't_gun', row: 12, col: 3 }] });
  h.step();
  const s = put(h, 'enemy_1081_sotisd', [11, 8]);
  const o = put(h, 'enemy_1007_slime', [10, 5]);
  assert.equal(s.s.taunt, 1);
  h.run(1.5);
  assert.ok(s.stats.taken > 0);
  assert.equal(o.stats.taken, 0);
});

test(`${nm('enemy_1427_lrnazg')}: its attack hits every operator around it`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }, { chessId: 't_wall2', row: 10, col: 5 }, { chessId: 't_wall3', row: 9, col: 6 }] });
  h.step();
  const e = put(h, 'enemy_1427_lrnazg', [9, 5]);
  h.runUntil(() => e.stats.attacks >= 1, 10);
  h.run(0.5);
  for (const id of ['t_wall', 't_wall2', 't_wall3']) assert.ok(h.unit(id).stats.taken > 0, id);
});

for (const key of ['enemy_1422_lrsldr', 'enemy_1422_lrsldr_2']) {
  test(`${nm(key)}: attacks deal arts damage while it stands on 源石污染区 (infection tiles)`, () => {
    const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }, { chessId: 't_wall2', row: 11, col: 6 }], flat: { rows: { 11: '##hrrriirrfrrrrrrrf##' } } });
    h.step();
    const dry = put(h, key, [9, 5]);
    const wet = put(h, key, [11, 6]);
    h.runUntil(() => dry.stats.attacks >= 1 && wet.stats.attacks >= 1, 20);
    const types = h.eventsOf('dmg');
    assert.ok(types.some((d) => d[1] === h.unit('t_wall2').id && d[3] === 'arts'));
    assert.ok(types.some((d) => d[1] === h.unit('t_wall').id && d[3] === 'phys'));
  });
}

for (const key of ['enemy_1425_lrcmra', 'enemy_1425_lrcmra_2']) {
  test(`${nm(key)}: after touching 源石污染区 it attacks with arts and pollutes around itself (HP loss, SP recovery −80 %)`, () => {
    const h = arena({ units: [{ chessId: 't_wall', row: 11, col: 6 }], flat: { rows: { 11: '##hrrriirrfrrrrrrrf##' } } });
    h.step();
    const e = put(h, key, [11, 6]);
    h.run(1.3);
    assert.equal(e.mem.ab.atkType, 'arts');
    const w = h.unit('t_wall');
    approx(w.s.spRecovery, CHESS.t_wall.stats.spRecovery * (1 + tb(key, 'OrigAura.sp_recover_ratio')));
    assert.ok(w.stats.taken >= tb(key, 'OrigAura.damage'));
  });
}

test(`${nm('enemy_1430_lrrook')}: absorbs ${tb('enemy_1430_lrrook', 'takeDmg.damage_scale') * 100} % of the damage dealt to nearby ground enemies`, () => {
  const h = arena();
  h.step();
  const c = put(h, 'enemy_1430_lrrook', [10, 7], { route: 2 });
  const o = put(h, 'enemy_1007_slime', [10, 6]);
  h.b.dealDamage(null, o, { amount: 100, type: 'true' });
  const share = tb('enemy_1430_lrrook', 'takeDmg.damage_scale');
  approx(o.s.maxHp - o.hp, 100 * (1 - share));
  approx(c.s.maxHp - c.hp, 100 * share);
});

test(`${nm('enemy_1025_reveng')}: ATK +${tb('enemy_1025_reveng', 'atkup.atk') * 100} % below half HP`, () => {
  const h = arena();
  h.step();
  const e = put(h, 'enemy_1025_reveng', [10, 7]);
  h.b.dealDamage(null, e, { amount: e.s.maxHp * 0.6, type: 'true' });
  approx(e.s.atk, E.enemy_1025_reveng.stats.atk * (1 + tb('enemy_1025_reveng', 'atkup.atk')));
});

test(`${nm('enemy_1021_bslime')}: death blast deals ATK×${tb('enemy_1021_bslime', 'boom.atk_scale')} physical around it`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }] });
  h.step();
  const e = put(h, 'enemy_1021_bslime', [10, 7]);
  killed(h, e, null);
  approx(h.unit('t_wall').stats.taken, E.enemy_1021_bslime.stats.atk * tb('enemy_1021_bslime', 'boom.atk_scale'));
});

test(`${nm('enemy_1067_snslime')}: death blast deals ATK×${tb('enemy_1067_snslime', 'boom.atk_scale')} physical and chills (cold ${tb('enemy_1067_snslime', 'boom.freeze')} s)`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }], hooks: ['statusApplied'] });
  h.step();
  const e = put(h, 'enemy_1067_snslime', [10, 7]);
  killed(h, e, null);
  const w = h.unit('t_wall');
  approx(w.stats.taken, E.enemy_1067_snslime.stats.atk * tb('enemy_1067_snslime', 'boom.atk_scale'));
  assert.equal(statuses(h, w.id, 'cold').length, 1);
});

test(`${nm('enemy_1069_icebrk_2')}: ×${tb('enemy_1069_icebrk_2', 'atkup.atk_scale')} damage against frozen targets`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }], captureNoisy: true, hooks: ['damaged'] });
  h.step();
  h.b.applyStatus(h.unit('t_wall'), 'freeze', { duration: 30 });
  const e = put(h, 'enemy_1069_icebrk_2', [9, 5]);
  h.runUntil(() => e.stats.attacks >= 1, 10);
  const d = h.hooksOf('damaged').find((c) => c.source === e);
  approx(d.amount, e.s.atk * tb('enemy_1069_icebrk_2', 'atkup.atk_scale'));
});

test(`${nm('enemy_1026_aghost')}: unblockable`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }] });
  h.step();
  const e = put(h, 'enemy_1026_aghost', [9, 5]);
  h.step(3);
  assert.ok(e.s.flags.unblockable && !e.blockedBy);
});

test(`${nm('enemy_1062_rager_2')}: loses ${tb('enemy_1062_rager_2', 'periodic_damage.damage')} HP per second`, () => {
  const h = arena();
  h.step();
  const e = put(h, 'enemy_1062_rager_2', [10, 7]);
  h.run(3.05);
  approx(e.s.maxHp - e.hp, 3 * tb('enemy_1062_rager_2', 'periodic_damage.damage'));
});

test(`${nm('enemy_1273_stmgun_2')}: Cannon locks the highest-max-HP unit and bombards (arts ATK×${skb('enemy_1273_stmgun_2', 'Cannon').bb.atk_scale})`, () => {
  const h = arena({ units: [{ chessId: 't_gun', row: 12, col: 3 }, { chessId: 't_wall', row: 11, col: 3 }], chess: { t_wall: WALL('t_wall', { stats: { maxHp: 2e7 } }) } });
  h.step();
  const e = put(h, 'enemy_1273_stmgun_2', [10, 9]);
  e.profile.noAttack = true;
  const s = skb('enemy_1273_stmgun_2', 'Cannon');
  h.run(s.initCooldown + 4);
  assert.ok(h.eventsOf('fx').some((f) => f[1] === 'telegraph' && f[4].kind === 'cannon'));
  assert.ok(h.unit('t_wall').stats.taken + h.unit('t_gun').stats.taken > 0);
});

for (const key of ['enemy_1501_demonk', 'enemy_10018_sgrobh']) {
  test(`${nm(key)}: attacks two targets at once`, () => {
    const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }, { chessId: 't_wall2', row: 11, col: 7 }], captureNoisy: true, hooks: ['attack'] });
    h.step();
    const e = put(h, key, [10, 7]);
    h.runUntil(() => e.stats.attacks >= 1, 10);
    assert.equal(h.hooksOf('attack').find((c) => c.attacker === e).targets.length, 2);
  });
}

for (const key of ['enemy_2001_duckmi', 'enemy_2001_duckmi_2']) {
  test(`${nm(key)}: unblockable; runs ×${tb(key, 'run.attack@move_speed')} once hit`, () => {
    const h = arena();
    h.step();
    const e = put(h, key, [10, 7], { move: true });
    const v = e.s.moveSpeed;
    assert.ok(e.s.flags.unblockable);
    h.b.dealDamage(null, e, { amount: 1, type: 'true' });
    approx(e.s.moveSpeed, v * tb(key, 'run.attack@move_speed'));
  });
}

test(`${nm('enemy_10159_mntrjn')}: unblockable`, () => {
  const h = arena();
  h.step();
  assert.ok(put(h, 'enemy_10159_mntrjn', [10, 7]).s.flags.unblockable);
});

test(`${nm('enemy_10001_trslim')}: below half HP it runs (move ×${1 + skb('enemy_10001_trslim', 'StartRun').bb.move_speed}, unblockable ${skb('enemy_10001_trslim', 'StartRun').bb.block_free_time} s)`, () => {
  const h = arena();
  h.step();
  const e = put(h, 'enemy_10001_trslim', [10, 7], { move: true });
  const v = e.s.moveSpeed;
  h.b.dealDamage(null, e, { amount: e.s.maxHp * 0.6, type: 'true' });
  h.step();
  assert.ok(e.s.flags.unblockable);
  approx(e.s.moveSpeed, v * (1 + skb('enemy_10001_trslim', 'StartRun').bb.move_speed));
});

test(`${nm('enemy_10027_vtsk')}: entrance barrage (${skb('enemy_10027_vtsk', 'Appear').bb.times} hits on the highest-HP unit); ranged hits ×0.8; charged triple attack`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 7 }, { chessId: 't_gun', row: 12, col: 3 }], captureNoisy: true, hooks: ['damaged'], chess: { t_wall: WALL('t_wall', { stats: { maxHp: 2e7 } }) } });
  h.step();
  const e = put(h, 'enemy_10027_vtsk', [10, 8]);
  h.run(0.6);
  const barrage = h.hooksOf('damaged').filter((c) => c.source === e && !c.dmg.isAttack);
  assert.equal(barrage.length, skb('enemy_10027_vtsk', 'Appear').bb.times);
  assert.ok(barrage.every((c) => c.target === h.unit('t_wall')), 'the highest-HP unit');
  approx(barrage[0].amount, e.s.atk);
  h.runUntil(() => e.stats.attacks >= 1, 10);
  const d = h.hooksOf('damaged').find((c) => c.source === e && c.dmg.isAttack);
  approx(d.amount, e.s.atk * tb('enemy_10027_vtsk', 'range.attack@atk_scale_range'));
  h.run(skb('enemy_10027_vtsk', 'MultiCombat').initCooldown + 6);
  assert.ok(h.hooksOf('damaged').filter((c) => c.source === e && !c.dmg.isAttack).length > skb('enemy_10027_vtsk', 'Appear').bb.times);
});

test(`${nm('enemy_10044_wintun')}: fast with its barrel; first hit ×${skb('enemy_10044_wintun', 'BlockedBoom').bb.blockee_atk_scale} and a buff zone for enemies`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }], captureNoisy: true, hooks: ['damaged'] });
  h.step();
  const e = put(h, 'enemy_10044_wintun', [9, 5]);
  assert.ok(e.findBuff('ab:barrel'));
  h.runUntil(() => e.stats.attacks >= 1, 10);
  approx(h.hooksOf('damaged').find((c) => c.source === e).amount, e.s.atk * skb('enemy_10044_wintun', 'BlockedBoom').bb.blockee_atk_scale);
  assert.ok(!e.findBuff('ab:barrel'));
  h.run(0.6);
  approx(e.s.dodgePhys, skb('enemy_10044_wintun', 'BlockedBoom').bb.prob);
});

test(`${nm('enemy_10045_parrot')}: 近地悬浮; sprints when first hit`, () => {
  const h = arena();
  h.step();
  const e = put(h, 'enemy_10045_parrot', [10, 7], { move: true });
  const v = e.s.moveSpeed;
  assert.ok(e.mem.ab.float && e.s.flags.unblockable);
  h.b.dealDamage(null, e, { amount: 1, type: 'true' });
  approx(e.s.moveSpeed, v * (1 + tb('enemy_10045_parrot', 'M0SpeedUp.move_speed')));
});

test(`${nm('enemy_10087_hlchgr')}: spends ammo every ${tb('enemy_10087_hlchgr', 'SkillTrigger.interval')} s for permanent speed and ATK`, () => {
  const h = arena();
  h.step();
  const e = put(h, 'enemy_10087_hlchgr', [10, 7]);
  h.run(2 * tb('enemy_10087_hlchgr', 'SkillTrigger.interval') + 0.1);
  approx(e.s.atk, E.enemy_10087_hlchgr.stats.atk * (1 + 2 * skb('enemy_10087_hlchgr', 'ForeverEnhance').bb.atk_add));
});

test(`${nm('enemy_10097_crshd')}: neural damage to its blocker every second`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }] });
  h.step();
  const e = put(h, 'enemy_10097_crshd', [9, 5]);
  h.run(2.05);
  approx(h.unit('t_wall').elem.neural, 2 * e.s.atk * tb('enemy_10097_crshd', 'block.ep_damage_ratio'));
});

test(`${nm('enemy_10116_ymgtop')}: spinning phase deals ATK×${tb('enemy_10116_ymgtop', 'RotateDamage.attack@atk_scale')} physical around it every second; 失衡 stops it`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }] });
  h.step();
  const e = put(h, 'enemy_10116_ymgtop', [10, 7]);
  h.run(skb('enemy_10116_ymgtop', 'SwitchModeTrigger').initCooldown + 3.05);
  const w = h.unit('t_wall');
  assert.ok(w.stats.taken >= 2 * e.s.atk * tb('enemy_10116_ymgtop', 'RotateDamage.attack@atk_scale') - 1e-6);
  h.b.displace(e, { x: -1, y: 0 }, 0.5, { force: 3 });                 // pushed back towards the wall: still in reach
  h.step();
  const t0 = w.stats.taken;
  h.run(3);
  assert.equal(w.stats.taken, t0, 'no more spin damage');
});

test(`${nm('enemy_10118_ymgprc')}: double hits; after ${skb('enemy_10118_ymgprc', 'PowerAttack').spCost} attacks the next double hit is ×${skb('enemy_10118_ymgprc', 'PowerAttack').bb.atk_scale}`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }], captureNoisy: true, hooks: ['damaged'] });
  h.step();
  const e = put(h, 'enemy_10118_ymgprc', [9, 5]);
  const n = skb('enemy_10118_ymgprc', 'PowerAttack').spCost + 1;                 // 4th attack (enemy SP +1 per attack)
  h.runUntil(() => e.stats.attacks >= n + 1, 60);
  const d = h.hooksOf('damaged').filter((c) => c.source === e).map((c) => Math.round(c.amount));
  const a = Math.round(e.s.atk), p = Math.round(e.s.atk * skb('enemy_10118_ymgprc', 'PowerAttack').bb.atk_scale);
  const exp = [];
  for (let i = 1; i <= n + 1; i++) exp.push(...(i === n ? [p, p] : [a, a]));
  assert.deepEqual(d.slice(0, exp.length), exp);
});

test(`${nm('enemy_10127_rkmbst_2')}: M0 shield — damage taken ×${1 - tb('enemy_10127_rkmbst_2', 'M0Shield.damage_resistance')}, ASPD +${tb('enemy_10127_rkmbst_2', 'M0Shield.attack_speed')}, barrier`, () => {
  const h = arena();
  h.step();
  const e = put(h, 'enemy_10127_rkmbst_2', [10, 7]);
  assert.equal(e.s.aspd, 100 + tb('enemy_10127_rkmbst_2', 'M0Shield.attack_speed'));
  approx(e.s.shield, e.s.maxHp * tb('enemy_10127_rkmbst_2', 'M0Shield.init_shield_hp_ratio'));
  approx(e.s.dmgTakenMul, 1 - tb('enemy_10127_rkmbst_2', 'M0Shield.damage_resistance'));
});

test(`${nm('enemy_10156_mncrer')}: death heals nearby enemies (ATK×${tb('enemy_10156_mncrer', 'Boom.heal_scale')})`, () => {
  const h = arena();
  h.step();
  const e = put(h, 'enemy_10156_mncrer', [10, 7]);
  const o = put(h, 'enemy_1007_slime', [10, 6.5]);
  h.b.dealDamage(null, o, { amount: 500, type: 'true' });
  killed(h, e, null);
  assert.equal(o.hp, o.s.maxHp);
});

test(`${nm('enemy_10162_mnctpt')}: three hits per attack with a small splash`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 4 }] });
  h.step();
  const e = put(h, 'enemy_10162_mnctpt', [10, 7]);
  h.runUntil(() => e.stats.attacks >= 1, 10);
  h.run(0.5);
  approx(h.unit('t_wall').stats.taken, tb('enemy_10162_mnctpt', 'Attack.attack@times') * e.s.atk);
});

test(`${nm('enemy_2010_csdcr')}: neural on hit; after ${tb('enemy_2010_csdcr', 'AttackSpeedUp.stack_cnt')} hits taken every enemy gets ASPD +${tb('enemy_2010_csdcr', 'AttackSpeedUp.attack_speed')}`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }] });
  h.step();
  const e = put(h, 'enemy_2010_csdcr', [9, 5]);
  const o = put(h, 'enemy_1007_slime', [11, 8]);
  h.runUntil(() => e.stats.attacks >= 1, 10);
  h.run(0.5);
  approx(h.unit('t_wall').elem.neural, e.s.atk * tb('enemy_2010_csdcr', 'attack.attack@ep_damage_ratio') * e.stats.attacks);
  for (let i = 0; i < tb('enemy_2010_csdcr', 'AttackSpeedUp.stack_cnt'); i++) h.b.dealDamage(null, e, { amount: 1, type: 'true' });
  assert.equal(o.s.aspd, 100 + tb('enemy_2010_csdcr', 'AttackSpeedUp.attack_speed'));
});

test(`${nm('enemy_1364_spnaxe_2')}: heals and stacks ATK when a unit within ${tb('enemy_1364_spnaxe_2', 'Attack.range_radius')} tile is knocked out; leaves 2 inert 血珀 in place`, () => {
  const h = arena();
  h.step();
  const e = put(h, 'enemy_1364_spnaxe_2', [10, 7]);
  const o = put(h, 'enemy_1007_slime', [10, 6.5]);
  const far = put(h, 'enemy_1007_slime', [10, 5.8]);                 // 1.2 tiles away: outside Attack.range_radius
  h.b.dealDamage(null, e, { amount: 5000, type: 'true' });
  const hp = e.hp;
  killed(h, far, null);
  assert.equal(e.hp, hp);
  killed(h, o, null);
  approx(e.hp - hp, e.s.maxHp * tb('enemy_1364_spnaxe_2', 'Attack.hp_ratio'));
  approx(e.s.atk, E.enemy_1364_spnaxe_2.stats.atk * (1 + tb('enemy_1364_spnaxe_2', 'Attack.atk')));
  const total = h.b.total;
  const x = e.x, y = e.y;
  killed(h, e, null);
  const seeds = alive(h, 'enemy_1367_dseed');
  assert.equal(seeds.length, tb('enemy_1364_spnaxe_2', 'Summon.cnt'));
  assert.equal(h.b.total, total, '血珀 are not counted (no altar in this mode)');
  h.run(20);
  for (const d of seeds) { assert.ok(d.alive); assert.ok(Math.hypot(d.x - x, d.y - y) < 0.5, 'stays where it fell'); }
  checkInvariants(h.b);
});

// leaders that only appear as bounties
test(`${nm('enemy_1050_lslime')}: 4 targets, burning DoT on hit, ASPD up below half, self-blast while blocked`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }, { chessId: 't_wall2', row: 10, col: 6 }] });
  h.step();
  const e = put(h, 'enemy_1050_lslime', [9, 5]);
  assert.equal(e.profile.maxTargets, 4);
  h.runUntil(() => e.stats.attacks >= 1, 10);
  h.run(0.5);
  assert.ok(h.unit('t_wall').findBuff('ab:burnDot'));
  h.b.dealDamage(null, e, { amount: e.s.maxHp * 0.6, type: 'true' });
  assert.equal(e.s.aspd, 100 + tb('enemy_1050_lslime', 'selfbuff.attack_speed'));
  h.run(tb('enemy_1050_lslime', 'rangedamage.interval'));
  assert.ok(h.eventsOf('fx').some((f) => f[1] === 'explode' && f[4].kind === 'selfBlast'));
});

test(`${nm('enemy_1500_skulsr')}: unblocked grenades splash and lower DEF; ATK up below half`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 5 }, { chessId: 't_wall2', row: 11, col: 5 }], hooks: ['statusApplied'] });
  h.step();
  const e = put(h, 'enemy_1500_skulsr', [10, 7]);
  h.runUntil(() => e.stats.attacks >= 1, 10);
  h.run(0.5);
  assert.ok(statuses(h, h.unit('t_wall2').id, 'defDown').length >= 1);
  h.b.dealDamage(null, e, { amount: e.s.maxHp * 0.6, type: 'true' });
  approx(e.s.atk, E.enemy_1500_skulsr.stats.atk * (1 + tb('enemy_1500_skulsr', 'atkup.atk')));
});

test(`${nm('enemy_1502_crowns')}: blinks past its blocker`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }] });
  h.step();
  const e = put(h, 'enemy_1502_crowns', [9, 7], { move: true });
  h.run(skb('enemy_1502_crowns', 'blink').initCooldown + 1);
  assert.ok(e.x < 5 - 0.5, `x ${e.x}`);
});

test(`${nm('enemy_1504_cqbw')}: C4 blasts (ATK×${skb('enemy_1504_cqbw', 'C4').bb.atk_scale}) after a fuse`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }] });
  h.step();
  const e = put(h, 'enemy_1504_cqbw', [10, 7]);
  e.profile.noAttack = true;
  h.run(skb('enemy_1504_cqbw', 'C4').initCooldown + 1.2);
  approx(h.unit('t_wall').stats.taken, e.s.atk * skb('enemy_1504_cqbw', 'C4').bb.atk_scale);
});

test(`${nm('enemy_1509_mousek')}: opening arts-only barrier (${tb('enemy_1509_mousek', 'shield.dynamic')}) with DEF +${tb('enemy_1509_mousek', 'defup.def')} while it holds; ×${tb('enemy_1509_mousek', 'enrage.damage_scale')} damage below half`, () => {
  const h = arena();
  h.step();
  const e = put(h, 'enemy_1509_mousek', [10, 7]);
  h.run(0.3);
  const cap = tb('enemy_1509_mousek', 'shield.dynamic'), res = E.enemy_1509_mousek.stats.res;
  assert.equal(e.s.def, E.enemy_1509_mousek.stats.def + tb('enemy_1509_mousek', 'defup.def'));
  // arts is absorbed after RES (like a shield); physical and true damage pass the barrier
  assert.equal(h.b.dealDamage(null, e, { amount: 1000, type: 'arts' }), 0);
  approx(e.mem.ab.list[0].left, cap - 1000 * (1 - res / 100));
  approx(h.b.dealDamage(null, e, { amount: 500, type: 'true' }), 500);
  const need = e.mem.ab.list[0].left / (1 - res / 100);
  approx(h.b.dealDamage(null, e, { amount: need + 1000, type: 'arts' }), 1000 * (1 - res / 100), 1e-6, 'overflow past the barrier');
  assert.equal(e.s.def, E.enemy_1509_mousek.stats.def, 'barrier broken ⇒ DEF bonus gone');
  h.b.loseHp(e, e.s.maxHp * 0.6);
  h.b.dealDamage(null, e, { amount: 1, type: 'true' });
  approx(e.s.dmgDealtMul, tb('enemy_1509_mousek', 'enrage.damage_scale'));
});

test(`${nm('enemy_1509_mousek')}: 【唱沙】 ${skb('enemy_1509_mousek', 'DriftSand').bb.damage} physical on the highest-max-HP unit's cross; 【沙狱】 ATK ${skb('enemy_1509_mousek', 'SandStorm').bb.atk * 100} % and ${skb('enemy_1509_mousek', 'SandStorm').bb.damage} arts/s on the lowest-max-HP unit and those around it`, () => {
  const big = WALL('t_wall', { stats: { maxHp: 2e7 } });
  const small = WALL('t_wall3', { stats: { maxHp: 5e6 }, atk: 100 });
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 4 }, { chessId: 't_wall2', row: 10, col: 5 }, { chessId: 't_wall3', row: 12, col: 8 }, { chessId: 't_wall4', row: 11, col: 4 }],
    chess: { t_wall: big, t_wall3: small } });
  h.step();
  const e = put(h, 'enemy_1509_mousek', [9, 9]);
  e.profile.noAttack = true;
  const ds = skb('enemy_1509_mousek', 'DriftSand'), ss = skb('enemy_1509_mousek', 'SandStorm');
  h.run(ds.initCooldown + 0.1);
  approx(h.unit('t_wall').stats.taken, ds.bb.damage, 1e-6, 'target');
  approx(h.unit('t_wall2').stats.taken, ds.bb.damage, 1e-6, 'cross neighbour');
  approx(h.unit('t_wall4').stats.taken, ds.bb.damage, 1e-6, 'cross neighbour');
  assert.equal(h.unit('t_wall3').stats.taken, 0);
  h.run(ss.initCooldown - h.b.time + 1.05);
  const w3 = h.unit('t_wall3');
  approx(w3.s.atk, 100 * (1 + ss.bb.atk));
  approx(w3.stats.taken, ss.bb.damage, 1e-6);
  checkInvariants(h.b);
});

test(`${nm('enemy_1511_mdrock')}: stacking ATK on attacks; barrier raises max HP and ASPD while it holds`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }] });
  h.step();
  const e = put(h, 'enemy_1511_mdrock', [9, 5]);
  h.run(0.3);
  assert.equal(e.s.aspd, 100 + tb('enemy_1511_mdrock', 'shield.attack_speed'));
  h.runUntil(() => e.stats.attacks >= 2, 20);
  approx(e.s.atk, E.enemy_1511_mdrock.stats.atk * (1 + 2 * tb('enemy_1511_mdrock', 'charge.attack@enemy_mdrock_s_1[charge].atk') / 6));
});

test(`${nm('enemy_1513_dekght')} + ${nm('enemy_1513_dekght_2')}: plus-shaped hits / two targets; each rages when the other dies`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }, { chessId: 't_wall2', row: 10, col: 5 }] });
  h.step();
  const a = put(h, 'enemy_1513_dekght', [9, 5]);
  const b = put(h, 'enemy_1513_dekght_2', [11, 8]);
  assert.equal(b.profile.maxTargets, 2);
  h.runUntil(() => a.stats.attacks >= 1, 10);
  assert.ok(h.unit('t_wall2').stats.taken > 0);
  killed(h, b, null);
  approx(a.s.atk, E.enemy_1513_dekght.stats.atk * (1 + tb('enemy_1513_dekght', 'triggerrage.atk')));
});

test(`${nm('enemy_1539_reid')}: ATK up below half; first KO ⇒ ${tb('enemy_1539_reid', 'Reborn.duration')} s rebirth (invulnerable, inert), back at ${tb('enemy_1539_reid', 'Reborn.hp_ratio') * 100} %; 【冲锋】 speeds up near a unit`, () => {
  const h = arena({ units: [{ chessId: 't_gun', row: 12, col: 3 }], kits: { t_gun: NOATK } });
  h.step();
  const e = put(h, 'enemy_1539_reid', [10, 7]);
  const coins0 = h.result().perPlayer.p1.killed;
  killed(h, e, h.unit('t_gun'));
  assert.ok(e.alive, 'revived');
  assert.equal(h.result().perPlayer.p1.killed, coins0, 'the first KO is not a kill');
  assert.ok(e.s.flags.invulnerable && e.s.flags.untargetable);
  assert.equal(h.b.dealDamage(h.unit('t_gun'), e, { amount: 1e6, type: 'true' }), 0);
  h.run(tb('enemy_1539_reid', 'Reborn.duration') + 0.1);
  assert.ok(!e.s.flags.invulnerable);
  approx(e.hp, e.s.maxHp * tb('enemy_1539_reid', 'Reborn.hp_ratio'));
  h.b.dealDamage(null, e, { amount: 1, type: 'true' });
  approx(e.s.atk, E.enemy_1539_reid.stats.atk * (1 + tb('enemy_1539_reid', 'AtkUp.atk')));
  killed(h, e, null);
  assert.ok(!e.alive);
  // 【冲锋】
  const h2 = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }] });
  h2.step();
  const r = put(h2, 'enemy_1539_reid', [10, 7], { move: true });
  h2.step(2);
  const rush = skb('enemy_1539_reid', 'Rush');
  assert.ok(r.findBuff('ab:rush'), 'a unit within range_radius');
  approx(r.s.moveSpeed, E.enemy_1539_reid.stats.moveSpeed * (1 + rush.bb.move_speed));
});

test(`${nm('enemy_2003_rockman')}: boulder stuns a non-stunned unit for ${skb('enemy_2003_rockman', 'StunAttack').bb.stun} s`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }], hooks: ['statusApplied'] });
  h.step();
  put(h, 'enemy_2003_rockman', [10, 8]);
  h.run(skb('enemy_2003_rockman', 'StunAttack').initCooldown + 1);
  const s = statuses(h, h.unit('t_wall').id, 'stun');
  assert.equal(s.length, 1);
  approx(s[0].duration, skb('enemy_2003_rockman', 'StunAttack').bb.stun);
});

test(`${nm('enemy_2004_balloon')}: takes off (unblockable) when blocked`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }] });
  h.step();
  const e = put(h, 'enemy_2004_balloon', [9, 5]);
  h.run(skb('enemy_2004_balloon', 'TakeOff').initCooldown + 0.2);
  assert.ok(e.s.flags.unblockable && !e.blockedBy);
});

test(`${nm('enemy_2005_axetro')}: stacking ATK/ASPD while attacking, reset after ${tb('enemy_2005_axetro', 'checker.delay')} s idle`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }] });
  h.step();
  const e = put(h, 'enemy_2005_axetro', [10, 7]);
  h.runUntil(() => e.stats.attacks >= 3, 30);
  assert.equal(e.findBuff('ab:axeStack').stacks, 3);
  h.b.retreat(h.unit('t_wall'), { permanent: true });
  h.run(tb('enemy_2005_axetro', 'checker.delay') + 1);
  assert.ok(!e.findBuff('ab:axeStack'));
});

test(`${nm('enemy_2008_flking')}: operators' ATK and DEF are halved while it lives; periodic barrier`, () => {
  const h = arena({ units: [{ chessId: 't_gun', row: 12, col: 3 }] });
  h.step();
  const e = put(h, 'enemy_2008_flking', [10, 7]);
  h.run(0.6);
  approx(h.unit('t_gun').s.atk, CHESS.t_gun.stats.atk * 0.5);
  h.run(skb('enemy_2008_flking', 'refreshshield').initCooldown);
  assert.ok(e.findBuff('ab:tombShield'));
});

test(`${nm('enemy_2048_smgrd')}: 国度 lowers ASPD around it; ×${tb('enemy_2048_smgrd', 'DamageUp.atk_scale')} against units inside`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }], captureNoisy: true, hooks: ['damaged'] });
  h.step();
  const e = put(h, 'enemy_2048_smgrd', [10, 7]);
  h.runUntil(() => e.stats.attacks >= 1, 10);
  h.run(0.6);
  assert.equal(h.unit('t_wall').s.aspd, 100 + tb('enemy_2048_smgrd', 'BlackFog.attack_speed'));
  approx(h.hooksOf('damaged').find((c) => c.source === e).amount, e.s.atk * tb('enemy_2048_smgrd', 'DamageUp.atk_scale'));
});

test(`${nm('enemy_2050_smsha')}: attacks chill and chain to ${tb('enemy_2050_smsha', 'Attack.attack@chain.max_target')} targets`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 5 }, { chessId: 't_wall2', row: 10, col: 4 }, { chessId: 't_wall3', row: 11, col: 4 }], hooks: ['statusApplied'] });
  h.step();
  const e = put(h, 'enemy_2050_smsha', [10, 7]);
  h.runUntil(() => e.stats.attacks >= 1, 10);
  h.run(0.6);
  const hit = ['t_wall', 't_wall2', 't_wall3'].filter((id) => h.unit(id).stats.taken > 0);
  assert.equal(hit.length, 3);
  assert.ok(statuses(h, h.unit('t_wall').id, 'cold').length >= 1);
});

test(`${nm('enemy_2052_smgia')}: every 3rd attack stuns ${skb('enemy_2052_smgia', 'StunAttack').bb.stun} s`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }], hooks: ['statusApplied'] });
  h.step();
  const e = put(h, 'enemy_2052_smgia', [9, 5]);
  h.runUntil(() => e.stats.attacks >= 3, 30);
  approx(statuses(h, h.unit('t_wall').id, 'stun')[0].duration, skb('enemy_2052_smgia', 'StunAttack').bb.stun);
});

// ---------------------------------------------------------------------------------------------------------------
// abilities added in the verification pass (silence, skills of leaders, second forms, 失衡, facing)

test(`${nm('enemy_1275_dwlock_2')}: a stun during 死亡之眼 interrupts the channel — no apoptosis burst`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }] });
  h.step();
  const e = put(h, 'enemy_1275_dwlock_2', [9, 7]);
  e.profile.noAttack = true;
  const s = skb('enemy_1275_dwlock_2', 'DeathEye');
  h.run(s.initCooldown + 2.1);
  const w = h.unit('t_wall');
  assert.ok(w.stats.taken > 0, 'channel ticking');
  h.b.applyStatus(e, 'stun', { duration: 1 });
  h.run(s.bb.hit_duration + 1);
  assert.equal(w.elem.apoptosis, 0);
  assert.ok(!e.findBuff('ab:channel'));
});

test(`${nm('enemy_10044_wintun')}: its first attack (SILENCE-flagged) is plain while silenced — the barrel is kept for later`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }], captureNoisy: true, hooks: ['damaged'] });
  h.step();
  const e = put(h, 'enemy_10044_wintun', [9, 5]);
  h.b.applyStatus(e, 'silence', { duration: 4 });
  h.runUntil(() => e.stats.attacks >= 1, 10);
  approx(h.hooksOf('damaged').find((c) => c.source === e).amount, e.s.atk);
  assert.ok(e.findBuff('ab:barrel'));
  h.run(4);
  h.runUntil(() => e.stats.attacks >= 3, 20);
  const hits = h.hooksOf('damaged').filter((c) => c.source === e).map((c) => c.amount);
  assert.ok(hits.some((v) => Math.abs(v - e.s.atk * skb('enemy_10044_wintun', 'BlockedBoom').bb.blockee_atk_scale) < 1e-6));
  assert.ok(!e.findBuff('ab:barrel'));
});

test(`${nm('enemy_1203_sfhu')}: one arts blast (ATK) on death; the steam keeps ASPD ${tb('enemy_1203_sfhu', 'DeadBoom.attack_speed')} for ${tb('enemy_1203_sfhu', 'DeadBoom.duration')} s`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }] });
  h.step();
  const e = put(h, 'enemy_1203_sfhu', [10, 7]);
  const atk = e.s.atk;
  killed(h, e, null);
  const w = h.unit('t_wall');
  approx(w.stats.taken, atk);
  h.run(tb('enemy_1203_sfhu', 'DeadBoom.duration') - 1);
  approx(w.stats.taken, atk, 1e-6, 'a single blast');
  assert.equal(w.s.aspd, 100 + tb('enemy_1203_sfhu', 'DeadBoom.attack_speed'));
  h.run(5);
  assert.equal(w.s.aspd, 100);
});

test(`${nm('enemy_1511_mdrock')}: the barrier absorbs arts only (after RES); 刷新屏障 restores it`, () => {
  const h = arena();
  h.step();
  const e = put(h, 'enemy_1511_mdrock', [10, 7]);
  h.run(0.2);
  const s = skb('enemy_1511_mdrock', 'RefreshShield');
  approx(e.s.maxHp, E.enemy_1511_mdrock.stats.maxHp * (1 + s.bb.max_hp));
  assert.equal(h.b.dealDamage(null, e, { amount: 1000, type: 'arts' }), 0);
  assert.ok(h.b.dealDamage(null, e, { amount: 1000, type: 'phys' }) > 0, 'physical passes');
  h.b.dealDamage(null, e, { amount: 1e5, type: 'arts' });
  approx(e.s.maxHp, E.enemy_1511_mdrock.stats.maxHp, 1e-6, 'barrier broken ⇒ HP / ASPD bonus gone');
  assert.equal(e.s.aspd, 100);
  h.run(s.initCooldown);
  assert.equal(e.s.aspd, 100 + s.bb.attack_speed, 'refreshed');
});

test(`${nm('enemy_1513_dekght')}: 蓄力攻击 — ${skb('enemy_1513_dekght', 'ChargeAttack').bb.duration} s charge (no attacks), then ATK×${skb('enemy_1513_dekght', 'ChargeAttack').bb.atk_scale} on its blocker's cross`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 5 }, { chessId: 't_wall2', row: 11, col: 5 }, { chessId: 't_wall3', row: 12, col: 5 }], captureNoisy: true, hooks: ['damaged'] });
  h.step();
  const e = put(h, 'enemy_1513_dekght', [10, 5]);
  const s = skb('enemy_1513_dekght', 'ChargeAttack');
  h.run(s.initCooldown + 0.1);
  assert.ok(h.eventsOf('fx').some((f) => f[1] === 'telegraph' && f[4].kind === 'chargeAttack'));
  const n0 = e.stats.attacks;
  h.run(s.bb.duration - 0.2);
  assert.equal(e.stats.attacks, n0, 'disarmed while charging');
  h.run(0.3);
  const blow = (id) => h.hooksOf('damaged').filter((c) => c.source === e && !c.dmg.isAttack && c.target.id === h.unit(id).id);
  approx(blow('t_wall2')[0].amount, e.s.atk * s.bb.atk_scale);
  approx(blow('t_wall')[0].amount, e.s.atk * s.bb.atk_scale);
  assert.equal(blow('t_wall3').length, 0, 'two tiles away');
});

test(`${nm('enemy_1513_dekght_2')}: 爆炸箭 — 3 targets, ${skb('enemy_1513_dekght_2', 'TripleAttack').bb['dekght_2[aoe].interval']} s later ATK×${skb('enemy_1513_dekght_2', 'TripleAttack').bb['dekght_2[aoe].atk_scale']} arts on each cross`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }, { chessId: 't_wall2', row: 11, col: 7 }, { chessId: 't_wall3', row: 9, col: 8 }, { chessId: 't_wall4', row: 12, col: 4 }] });
  h.step();
  const e = put(h, 'enemy_1513_dekght_2', [10, 8]);
  e.profile.noAttack = true;
  const s = skb('enemy_1513_dekght_2', 'TripleAttack');
  h.run(s.initCooldown + 0.1);
  assert.equal(h.eventsOf('fx').filter((f) => f[1] === 'telegraph' && f[4].kind === 'blastArrow').length, 3);
  assert.equal(h.unit('t_wall').stats.taken, 0, 'delayed');
  h.run(s.bb['dekght_2[aoe].interval']);
  approx(h.unit('t_wall').stats.taken, e.s.atk * s.bb['dekght_2[aoe].atk_scale']);
  assert.equal(h.unit('t_wall4').stats.taken, 0, 'out of range');
});

test(`${nm('enemy_2008_flking')}: redeploy time doubled and DP recovery halved while it lives`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }], flags: { dpInit: 0 } });
  h.step();
  const e = put(h, 'enemy_2008_flking', [10, 8]);
  e.profile.noAttack = true;
  h.run(10);
  approx(h.b.getPlayer('p1').dp, 5, 0.02);
  const w = h.unit('t_wall');
  h.b.kill(w, null);
  approx(w.respawnAt - h.b.time, 2 * w.base.respawnTime, 1e-6);
});

test(`${nm('enemy_2048_smgrd')}: 【国度】 covers the 8 tiles around it (diagonals included)`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 11, col: 6 }, { chessId: 't_wall2', row: 12, col: 5 }] });
  h.step();
  const e = put(h, 'enemy_2048_smgrd', [10, 7]);
  e.profile.noAttack = true;
  h.run(0.6);
  assert.equal(h.unit('t_wall').s.aspd, 100 + tb('enemy_2048_smgrd', 'BlackFog.attack_speed'), 'diagonal');
  assert.equal(h.unit('t_wall2').s.aspd, 100, 'two tiles away');
});

test(`${nm('enemy_2050_smsha')}: 【反自然馈赠】 chains over ${skb('enemy_2050_smsha', 'ChainBuff').bb['chain.max_target']} enemies (move ×${1 + skb('enemy_2050_smsha', 'ChainBuff').bb.move_speed}, ASPD +${skb('enemy_2050_smsha', 'ChainBuff').bb.attack_speed}); silence stops it`, () => {
  const run = (silenced) => {
    const h = arena();
    h.step();
    const e = put(h, 'enemy_2050_smsha', [10, 8]);
    const others = [[10, 6], [10, 5], [11, 4], [12, 3]].map((p) => put(h, 'enemy_1007_slime', p));
    if (silenced) h.b.applyStatus(e, 'silence', { duration: 60 });
    h.run(skb('enemy_2050_smsha', 'ChainBuff').initCooldown + 0.1);
    return others.map((o) => !!o.findBuff('ab:chainBuff'));
  };
  assert.deepEqual(run(false), [true, true, true, false]);
  assert.deepEqual(run(true), [false, false, false, false]);
});

test(`${nm('enemy_2052_smgia')}: terrain damage ⇒ damage taken ×${tb('enemy_2052_smgia', 'Weak.damage_scale')} for ${tb('enemy_2052_smgia', 'Weak.weak[limit]')} s`, () => {
  const h = arena();
  h.step();
  const e = put(h, 'enemy_2052_smgia', [10, 7]);
  h.b.dealDamage(null, e, { amount: 100, type: 'true' });
  assert.equal(e.s.dmgTakenMul, 1);
  h.b.dealDamage(null, e, { amount: 40, type: 'true', tags: ['terrain'] });
  assert.equal(e.s.dmgTakenMul, tb('enemy_2052_smgia', 'Weak.damage_scale'));
  h.run(tb('enemy_2052_smgia', 'Weak.weak[limit]') + 0.1);
  assert.equal(e.s.dmgTakenMul, 1);
});

test(`${nm('enemy_10097_crshd')} / ${nm('enemy_2085_skzjxd')}: physical / arts damage from the front ×${1 - tb('enemy_10097_crshd', 'weakness.damage_resistance')} (walking direction / the side with more operators)`, () => {
  const h = arena({ units: [{ chessId: 't_gun', row: 10, col: 3 }, { chessId: 't_mage', row: 12, col: 3 }, { chessId: 't_blade', row: 11, col: 9 }], kits: { t_gun: NOATK, t_mage: NOATK, t_blade: NOATK } });
  h.step();
  const d = put(h, 'enemy_10097_crshd', [11, 6], { move: true, route: { motion: 'WALK', start: [11, 6], end: [11, 3], checkpoints: [] } });
  const y = put(h, 'enemy_2085_skzjxd', [9, 6]);
  h.run(0.5);
  const cut = 1 - tb('enemy_10097_crshd', 'weakness.damage_resistance');
  const front = h.unit('t_gun'), back = h.unit('t_blade');           // gun / mage on the left, blade on the right
  approx(h.b.dealDamage(front, d, { amount: 1000, type: 'phys' }), (1000 - d.s.def) * cut, 1e-6, 'designer walks left: gun is in front');
  approx(h.b.dealDamage(back, d, { amount: 1000, type: 'phys' }), 1000 - d.s.def, 1e-6, 'from behind');
  approx(h.b.dealDamage(front, y, { amount: 1000, type: 'arts' }), 1000 * (1 - y.s.res / 100) * (1 - tb('enemy_2085_skzjxd', 'Weakness.damage_resistance')), 1e-6, '圆仔 faces the two operators on the left');
  approx(h.b.dealDamage(back, y, { amount: 1000, type: 'true' }), 1000, 1e-6, 'true damage is never reduced');
});

test(`${nm('enemy_10098_crhro')}: 重生 once after ${tb('enemy_10098_crhro', 'reborn.duration')} s at full HP`, () => {
  const h = arena();
  h.step();
  const e = put(h, 'enemy_10098_crhro', [10, 7]);
  killed(h, e, null);
  assert.ok(e.alive && e.s.flags.untargetable);
  h.run(tb('enemy_10098_crhro', 'reborn.duration') + 0.1);
  approx(e.hp, e.s.maxHp);
  killed(h, e, null);
  assert.ok(!e.alive);
});

test('失衡: 弧光锋卫 bleeds per tile pushed; 冒失的小弟 is stunned; 拥霜羽兽 drops its egg (faster, unblockable)', () => {
  const h = arena({ hooks: ['statusApplied'] });
  h.step();
  const j = put(h, 'enemy_1328_cbjedi', [10, 7]);
  const g = put(h, 'enemy_10112_ymgds', [11, 7]);
  const p = put(h, 'enemy_10141_xdpeng_2', [12, 7]);
  h.step(2);
  const hp0 = j.hp;
  const moved = h.b.displace(j, { x: 1, y: 0 }, 1, { force: 3 });
  h.b.displace(g, { x: 1, y: 0 }, 1, { force: 3 });
  h.b.displace(p, { x: 1, y: 0 }, 1, { force: 3 });
  h.step();
  approx(hp0 - j.hp, (tb('enemy_1328_cbjedi', 'unbalanced_bleed.damage') * moved) / (tb('enemy_1328_cbjedi', 'unbalanced_bleed.interval') * 5), 0.05);
  assert.equal(statuses(h, g.id, 'stun').length, 1);
  approx(statuses(h, g.id, 'stun')[0].duration, tb('enemy_10112_ymgds', 'StunAfterUnbalance.stun'));
  assert.ok(p.s.flags.unblockable);
  assert.equal(p.findBuff('ab:noEgg').mods.moveMul, 1 + tb('enemy_10141_xdpeng_2', 'speed.move_speed'));
  // 雪孩子: pushed into high ground (row 12 col 2 is 'h' on the flat stage) ⇒ hitWall.value
  const sn = put(h, 'enemy_10138_xdsnow', [10, 3]);
  const sn2 = put(h, 'enemy_10138_xdsnow', [11, 6]);
  h.step(2);
  const s0 = sn.hp, s20 = sn2.hp;
  h.b.displace(sn, { x: -1, y: 0 }, 1, { force: 3 });                // (10,3) → wall at (10,2)
  h.b.displace(sn2, { x: 1, y: 0 }, 0.5, { force: 3 });              // open road: no collision
  h.step();
  approx(s0 - sn.hp, tb('enemy_10138_xdsnow', 'hitWall.value'));
  assert.equal(sn2.hp, s20);
  // walking alone never counts as 失衡
  const w = put(h, 'enemy_10112_ymgds', [9, 9], { move: true });
  h.run(5);
  assert.equal(statuses(h, w.id, 'stun').length, 0);
});

// multi-form leaders (悬赏 targets): the first KO is hidden (no kill, no bounty) and switches the form

test(`${nm('enemy_1512_mcmstr')}: melee ×${tb('enemy_1512_mcmstr', 'combat.attack@mcmstr_rage_attack.atk_scale')}; KO ⇒ self-destruct (stun ${skb('enemy_1512_mcmstr', 'bomb[reborning]').bb.stun} s) and after ${tb('enemy_1512_mcmstr', 'reborn.duration')} s the fleeing 大祭司 (no attack, unblockable, −${tb('enemy_1512_mcmstr', 'bird_run.damage')} HP/s)`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }], captureNoisy: true, hooks: ['damaged', 'statusApplied'] });
  h.step();
  const e = put(h, 'enemy_1512_mcmstr', [9, 5]);
  e.bounty = { coins: 4, ownerPlayerId: 'p1' };
  h.runUntil(() => e.stats.attacks >= 1, 10);
  approx(h.hooksOf('damaged').find((c) => c.source === e).amount, e.s.atk * tb('enemy_1512_mcmstr', 'combat.attack@mcmstr_rage_attack.atk_scale'));
  killed(h, e, h.unit('t_wall'));
  assert.ok(e.alive);
  assert.equal(h.result().perPlayer.p1.coins, 0, 'no bounty for the first form');
  const st = statuses(h, h.unit('t_wall').id, 'stun');
  assert.equal(st.length, 1);
  approx(st[0].duration, skb('enemy_1512_mcmstr', 'bomb[reborning]').bb.stun);
  h.run(tb('enemy_1512_mcmstr', 'reborn.duration') + 0.1);
  assert.ok(e.profile.noAttack && e.s.flags.unblockable);
  assert.equal(e.s.def, tb('enemy_1512_mcmstr', 'bird_run.def'));
  assert.equal(e.s.res, tb('enemy_1512_mcmstr', 'bird_run.magic_resistance'));
  const hp = e.hp;
  h.run(1);
  approx(hp - e.hp, tb('enemy_1512_mcmstr', 'bird_run.damage'), 0.01);
  killed(h, e, h.unit('t_wall'));
  assert.ok(!e.alive);
  assert.equal(h.result().perPlayer.p1.coins, 4);
});

test(`${nm('enemy_1516_jakill')}: 狱警 — RES +${tb('enemy_1516_jakill', 'enhance.magic_resistance')}, ranged arts, every 4th attack stuns 2 units; KO frees every prisoner ⇒ 杀手 — melee phys, DEF +${tb('enemy_1516_jakill', 'enhance.def')}, every 4th attack twice ignoring ${skb('enemy_1516_jakill', 'armorpiercing').bb.def_penetrate * 100} % DEF`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }, { chessId: 't_wall2', row: 10, col: 5 }, { chessId: 't_wall3', row: 9, col: 5 }],
    chess: { t_wall3: WALL('t_wall3', { def: 500 }) }, captureNoisy: true, hooks: ['damaged', 'statusApplied'] });
  h.step();
  const e = put(h, 'enemy_1516_jakill', [10, 7]);
  const pr = put(h, 'enemy_1116_liprr', [12, 8]);
  assert.equal(e.s.res, E.enemy_1516_jakill.stats.res + tb('enemy_1516_jakill', 'enhance.magic_resistance'));
  const iron = skb('enemy_1516_jakill', 'ironsandstorm');
  h.runUntil(() => e.stats.attacks >= iron.spCost + 1, 60);
  const hit = h.hooksOf('damaged').find((c) => c.source === e && c.dmg.isAttack);
  assert.equal(hit.dmg.type, 'arts');
  const stunned = new Set(h.hooksOf('statusApplied').filter((c) => c.status === 'stun' && c.source === e).map((c) => c.target.id));
  assert.equal(stunned.size, iron.bb.max_target);
  killed(h, e, null);
  assert.ok(pr.mem.ab.list[0].free, 'prisoners freed');
  h.run(tb('enemy_1516_jakill', 'reborn.duration') + 0.1);
  assert.equal(e.s.def, E.enemy_1516_jakill.stats.def + tb('enemy_1516_jakill', 'enhance.def'));
  assert.equal(e.s.atk, E.enemy_1516_jakill.stats.atk + tb('enemy_1516_jakill', 'enhance.atk'));
  assert.equal(e.profile.melee, true);
  // killer form: melee against its blocker
  const h2 = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }], chess: { t_wall: WALL('t_wall', { def: 500 }) }, captureNoisy: true, hooks: ['damaged'] });
  h2.step();
  const k = put(h2, 'enemy_1516_jakill', [9, 5]);
  killed(h2, k, null);
  h2.run(tb('enemy_1516_jakill', 'reborn.duration') + 0.1);
  const t0 = h2.b.time;
  const pierce = skb('enemy_1516_jakill', 'armorpiercing');
  h2.runUntil(() => k.stats.attacks >= pierce.spCost + 1, 60);
  const d = h2.hooksOf('damaged').filter((c) => c.source === k && c.t > t0);
  assert.ok(d.every((c) => c.dmg.type === 'phys'));
  const atk = k.s.atk, pen = pierce.bb.def_penetrate;
  approx(d[0].amount, atk - 500);
  const last = d.slice(-2).map((c) => c.amount);
  approx(last[0], atk - 500 * (1 - pen));
  approx(last[1], atk - 500 * (1 - pen));
});

test(`${nm('enemy_1517_xi')}: 纬地经天 cross on the nearest unit; 破桎而出 barrier unbroken ⇒ ATK×${skb('enemy_1517_xi', 'ShieldBurst').bb.atk_scale} arts around; KO ⇒ form 2 (invincible ${tb('enemy_1517_xi', 'reborn.invincible')} s, double hits, crosses on nearest + farthest)`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }, { chessId: 't_wall2', row: 12, col: 6 }, { chessId: 't_wall3', row: 9, col: 3 }], captureNoisy: true, hooks: ['damaged'] });
  h.step();
  const e = put(h, 'enemy_1517_xi', [10, 8]);
  e.profile.noAttack = true;
  const cr = skb('enemy_1517_xi', 'CrossAttack'), sb = skb('enemy_1517_xi', 'ShieldBurst');
  h.run(cr.initCooldown + 0.1);
  approx(h.unit('t_wall').stats.taken, e.s.atk * cr.bb.atk_scale, 1e-6, 'nearest');
  approx(h.unit('t_wall2').stats.taken, e.s.atk * cr.bb.atk_scale, 1e-6, 'same column, 2 rows away: inside the cross');
  assert.equal(h.unit('t_wall3').stats.taken, 0, 'outside the cross');
  h.run(sb.initCooldown - h.b.time + 0.1);
  approx(e.s.shield, sb.bb.dynamic);
  const w0 = h.unit('t_wall').stats.taken;
  h.run(sb.bb.duration);
  assert.ok(h.eventsOf('fx').some((f) => f[1] === 'explode' && f[4].kind === 'breakFree'));
  approx(h.unit('t_wall').stats.taken - w0, e.s.atk * (sb.bb.atk_scale + cr.bb.atk_scale), 1e-6, 'barrier held ⇒ blast (+ the next cross)');
  // a broken barrier never blasts
  const h3 = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }] });
  h3.step();
  const x3 = put(h3, 'enemy_1517_xi', [10, 8]);
  x3.profile.noAttack = true;
  h3.run(sb.initCooldown + 0.1);
  h3.b.dealDamage(null, x3, { amount: 1e5, type: 'true' });
  h3.run(sb.bb.duration);
  assert.ok(!h3.eventsOf('fx').some((f) => f[1] === 'explode' && f[4].kind === 'breakFree'));
  killed(h, e, null);
  h.run(tb('enemy_1517_xi', 'reborn.duration') + 0.1);
  assert.ok(e.s.flags.invulnerable, 'reborn invincibility');
  approx(e.s.atk, E.enemy_1517_xi.stats.atk * (1 + tb('enemy_1517_xi', 'reborn.atk')));
  h.run(tb('enemy_1517_xi', 'reborn.invincible'));
  assert.ok(!e.s.flags.invulnerable);
});

test(`${nm('enemy_1525_blkswb')}: 抵抗; ignores ${tb('enemy_1525_blkswb', 'DefPenetrate.enemy_blkswb_t_2.def_penetrate') * 100} % of its blocker's DEF; 速杀 passes through the blocker (ATK×${skb('enemy_1525_blkswb', 'Blink').bb.atk_scale}); KO ⇒ stealth, double hits, SP cleared + disarm at every 25 % HP lost`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }, { chessId: 't_blade', row: 9, col: 3 }], chess: { t_wall: WALL('t_wall', { def: 500 }) }, kits: { t_blade: NOATK }, captureNoisy: true, hooks: ['damaged', 'statusApplied'] });
  h.step();
  const e = put(h, 'enemy_1525_blkswb', [9, 6], { move: true, route: { motion: 'WALK', start: [9, 6], end: [9, 2], checkpoints: [] } });
  h.b.applyStatus(e, 'cold', { duration: 4 });
  assert.equal(statuses(h, e.id, 'cold')[0].duration, 2, '抵抗 halves');
  h.runUntil(() => h.hooksOf('damaged').some((c) => c.source === e), 20);
  const first = h.hooksOf('damaged').find((c) => c.source === e);
  approx(first.amount, e.s.atk * skb('enemy_1525_blkswb', 'Blink').bb.atk_scale - 500, 1e-6, '速杀 on its blocker');
  assert.ok(e.x < 5 - 0.4, `passed through (x ${e.x})`);
  // form 2 (its 速杀 held back so it keeps fighting the wall)
  const CASTER = chessRec({ id: 't_caster', profession: 'CASTER', projectile: 'none', stats: { atk: 1, maxHp: 1e7, bat: 1, blockCnt: 0 }, rangeGrid: [[0, 0]], skill: { spCost: 999 } });
  const h2 = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }, { chessId: 't_caster', row: 10, col: 4 }], chess: { t_wall: WALL('t_wall', { def: 500 }), t_caster: CASTER },
    captureNoisy: true, hooks: ['damaged', 'statusApplied'] });
  h2.step();
  const k = put(h2, 'enemy_1525_blkswb', [9, 5]);
  for (const a of k.mem.ab.list) if (a.id === 'blink' || a.id === 'blink2') a.left = 999;
  killed(h2, k, null);
  h2.run(tb('enemy_1525_blkswb', 'Reborn.duration') + tb('enemy_1525_blkswb', 'Reborn.invincible') + 0.1);
  assert.ok(k.s.flags.stealth, 'second form: 隐匿');
  const t0 = h2.b.time, a0 = k.stats.attacks;
  h2.runUntil(() => k.stats.attacks >= a0 + 1, 20);
  h2.step();
  const pen2 = tb('enemy_1525_blkswb', 'DefPenetrate.enemy_blkswb_t_2[reborn].def_penetrate');
  const hits = h2.hooksOf('damaged').filter((c) => c.source === k && c.t > t0 && c.target === h2.unit('t_wall'));
  assert.equal(hits.length, 2, 'double hit');
  for (const c of hits) approx(c.amount, k.s.atk - 500 * (1 - pen2));
  const cs = h2.unit('t_caster');
  assert.ok(cs.skill.sp > 5);
  h2.b.loseHp(k, k.s.maxHp * 0.3);
  h2.b.dealDamage(null, k, { amount: 1, type: 'true' });
  assert.ok(cs.skill.sp < 0.1, 'SP cleared');
  assert.equal(statuses(h2, cs.id, 'disarm').length, 1);
  approx(statuses(h2, cs.id, 'disarm')[0].duration, tb('enemy_1525_blkswb', 'ClearSp.duration'));
});

test(`${nm('enemy_1535_wlfmster')}: −${tb('enemy_1535_wlfmster', 'Passive.damage_resistance') * 100} % damage and not stunnable; 溶血骇惧 (3 units, ASPD ${skb('enemy_1535_wlfmster', 'FearCage').bb.attack_speed}, rising HP loss, cured after it loses ${skb('enemy_1535_wlfmster', 'FearCage').bb.hp_ratio * 100} %); KO ⇒ ${tb('enemy_1535_wlfmster', 'Reborn.duration')} s 远古威慑 ⇒ ranged double hits`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 5 }, { chessId: 't_wall2', row: 11, col: 5 }, { chessId: 't_wall3', row: 12, col: 5 }, { chessId: 't_wall4', row: 9, col: 5 }], hooks: ['statusApplied'] });
  h.step();
  const e = put(h, 'enemy_1535_wlfmster', [10, 7]);
  e.profile.noAttack = true;
  approx(e.s.dmgTakenMul, 1 - tb('enemy_1535_wlfmster', 'Passive.damage_resistance'));
  assert.equal(h.b.applyStatus(e, 'stun', { duration: 2 }), false);
  const fc = skb('enemy_1535_wlfmster', 'FearCage');
  h.run(fc.spCost + 0.1);
  const caged = h.allies().filter((u) => u.findBuff('ab:fearCage'));
  assert.equal(caged.length, fc.bb.max_target);
  assert.equal(caged[0].s.aspd, 100 + fc.bb.attack_speed);
  const hp0 = caged[0].hp;
  h.run(10);
  assert.ok(caged[0].hp < hp0, 'losing HP');
  h.b.loseHp(e, e.s.maxHp * (fc.bb.hp_ratio + 0.01));
  h.run(0.3);
  assert.equal(h.allies().filter((u) => u.findBuff('ab:fearCage')).length, 0, 'cured');
  killed(h, e, null);
  assert.ok(e.alive && e.s.flags.untargetable);
  h.run(tb('enemy_1535_wlfmster', 'Reborn.duration') / 2);
  approx(e.hpRatio, 0.5, 0.05, 'HP refills during 远古威慑');
  assert.equal(h.unit('t_wall').s.aspd, 100 - 30, 'aura slows the units around it');
  h.run(tb('enemy_1535_wlfmster', 'Reborn.duration') / 2 + 0.1);
  approx(e.hpRatio, 1);
  assert.equal(e.s.dmgTakenMul, 1, 'no damage reduction any more');
  assert.equal(e.profile.melee, false);
  assert.ok(e.s.flags.invulnerable, 'Passive2.invincible_time');
  assert.equal(h.b.applyStatus(e, 'stun', { duration: 1 }), true, 'stunnable in the second form');
});

test(`${nm('enemy_10081_mpplai')}: no attack until 4 physical hits (复仇: melee), 4 arts hits (术士: ranged arts) or being blocked (幽灵: unblockable)`, () => {
  const mk = () => { const h = arena({ units: [{ chessId: 't_gun', row: 12, col: 3 }, { chessId: 't_mage', row: 12, col: 4 }], kits: { t_gun: NOATK, t_mage: NOATK } }); h.step(); return h; };
  let h = mk();
  let e = put(h, 'enemy_10081_mpplai', [10, 7]);
  for (let i = 0; i < 4; i++) h.b.dealDamage(h.unit('t_gun'), e, { amount: 10, type: 'phys' });
  approx(e.s.atk, E.enemy_10081_mpplai.stats.atk + tb('enemy_10081_mpplai', 'Mode_Fuchou_Passive.atk'));
  approx(e.s.maxHp, E.enemy_10081_mpplai.stats.maxHp + tb('enemy_10081_mpplai', 'Mode_Fuchou_Passive.max_hp'));
  const h2 = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }] });
  h2.step();
  const f = put(h2, 'enemy_10081_mpplai', [10, 7]);
  for (let i = 0; i < 4; i++) h2.b.dealDamage(null, f, { amount: 1, type: 'arts' });
  assert.equal(f.mem.ab.list.length, 3);
  // arts hits from nobody (terrain) do not count
  assert.equal(f.findBuff('ab:form'), null);
  h = mk();
  e = put(h, 'enemy_10081_mpplai', [11, 5]);
  for (let i = 0; i < 4; i++) h.b.dealDamage(h.unit('t_mage'), e, { amount: 10, type: 'arts' });
  approx(e.s.res, E.enemy_10081_mpplai.stats.res + tb('enemy_10081_mpplai', 'Mode_Shushi_Passive.magic_resistance'));
  h.run(3);
  assert.ok(e.stats.attacks > 0 && h.unit('t_gun').stats.taken + h.unit('t_mage').stats.taken > 0, '术士 attacks in range');
  const h3 = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }] });
  h3.step();
  const g = put(h3, 'enemy_10081_mpplai', [9, 5]);
  h3.run(0.5);
  assert.ok(g.findBuff('ab:form') && g.s.flags.unblockable, '幽灵');
  assert.equal(g.stats.attacks, 0);
});

test(`${nm('enemy_10144_xdelk_2')}: 角力对决 — blocked ⇒ ${skb('enemy_10144_xdelk_2', 'skill').bb.duration} s charge; the push fails ⇒ ×2 damage and a ${tb('enemy_10144_xdelk_2', 'data.attack@fail_duration')} s stun; a stun interrupts`, () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }], captureNoisy: true, hooks: ['statusApplied', 'damaged'] });
  h.step();
  const e = put(h, 'enemy_10144_xdelk_2', [9, 5]);
  const s = skb('enemy_10144_xdelk_2', 'skill');
  h.run(1);
  assert.ok(e.findBuff('ab:elkCharge'));
  const n = e.stats.attacks;
  h.run(s.bb.duration - 1.5);
  assert.equal(e.stats.attacks, n, 'no attacks while charging');
  assert.equal(statuses(h, h.unit('t_wall').id, 'stun').length, 0);
  h.runUntil(() => statuses(h, h.unit('t_wall').id, 'stun').length > 0, 3);
  const clash = h.hooksOf('damaged').find((c) => c.source === e && !c.dmg.isAttack);
  approx(clash.amount, e.s.atk * s.bb.atk_scale_s * 2);
  approx(statuses(h, h.unit('t_wall').id, 'stun')[0].duration, tb('enemy_10144_xdelk_2', 'data.attack@fail_duration'));
  // interrupted
  const h2 = arena({ units: [{ chessId: 't_wall', row: 9, col: 5 }], hooks: ['statusApplied'] });
  h2.step();
  const k = put(h2, 'enemy_10144_xdelk_2', [9, 5]);
  h2.run(1);
  h2.b.applyStatus(k, 'stun', { duration: 1 });
  h2.run(s.bb.duration + 1);
  assert.equal(statuses(h2, h2.unit('t_wall').id, 'stun').length, 0);
});

// ---------------------------------------------------------------------------------------------------------------
// leaders: shared rules

test('最终攻势: leaders take no 侵蚀 (erosion) damage; other enemies do', () => {
  const h = bossArena();
  h.step();
  const e = put(h, 'enemy_9021_acduml', [3, 10], { tag: 'boss' });
  const o = put(h, 'enemy_1007_slime', [3, 8]);
  assert.equal(h.b.dealDamage(null, e, { type: 'element', element: 'erosion', amount: 5000 }), 0);
  assert.equal(e.elem.erosion, 0);
  assert.ok(h.b.dealDamage(null, e, { type: 'element', element: 'burn', amount: 100 }) > 0);
  assert.ok(h.b.dealDamage(null, o, { type: 'element', element: 'erosion', amount: 100 }) > 0);
});

test('template overrides of talents/skills are honoured (卢西恩 evade 0.2 in act2autochess_h07_05)', () => {
  const h = arena({ kind: 'boss', sharedBoss: pool(1e6), setup(b) { b.enemyOverrides = W.act2autochess_h07_05.overrides; } });
  h.step();
  const e = put(h, 'enemy_2016_csphtm', [3, 12], { tag: 'boss' });
  h.step(2);
  assert.equal(e.s.dodgePhys, W.act2autochess_h07_05.overrides.enemy_2016_csphtm.talents.bb['evade.prob']);
});

// ---------------------------------------------------------------------------------------------------------------
// leaders (boss rounds: field rows 0–5; board rows 9–12 map to 2–5)

const bossArena = (o = {}) => arena({ kind: 'boss', sharedBoss: pool(o.hp ?? 1e6), ...o });
const setTpl = (id) => (b) => { b.opts.templateId = id; };

test('假想敌：胄: arts ray on a random target in range; <20 % pool: damage taken ×0.5 and two 刺胄之弹', () => {
  const h = bossArena({ units: [{ chessId: 't_wall', row: 10, col: 6 }, { chessId: 't_wall2', row: 12, col: 4 }] });
  h.step();
  const e = put(h, 'enemy_9013_acstmk', [3, 10], { tag: 'boss' });
  h.run(9);
  const arts = h.eventsOf('dmg').filter((d) => d[3] === 'arts' && (d[1] === h.unit('t_wall').id || d[1] === h.unit('t_wall2').id));
  assert.ok(arts.length >= 2);
  h.b.sharedBoss.hp = h.b.sharedBoss.maxHp * 0.1;
  h.run(0.5);
  approx(e.s.physTakenMul, tb('enemy_9013_acstmk', '1.damage_scale'));
  approx(e.s.artsTakenMul, tb('enemy_9013_acstmk', '1.damage_scale'));
  assert.equal(e.s.trueTakenMul, 1);
  h.run(skb('enemy_9013_acstmk', '1').initCooldown - 9);
  assert.equal(h.eventsOf('fx').filter((f) => f[1] === 'shell').length, 2);
});

test('假想敌：胄 + 刺胄之弹: the shell flies to the highest-ATK operator; on arrival 3×3 stun + physical DoT; 8 hits shoot it down', () => {
  const hi = WALL('t_wall', { atk: 900 });
  const h = bossArena({ units: [{ chessId: 't_wall', row: 10, col: 6 }, { chessId: 't_wall2', row: 10, col: 7 }, { chessId: 't_wall3', row: 12, col: 3 }], chess: { t_wall: hi }, hooks: ['statusApplied'] });
  h.step();
  const e = put(h, 'enemy_9013_acstmk', [3, 10], { tag: 'boss' });
  e.profile.noAttack = true;
  h.run(skb('enemy_9013_acstmk', '1').initCooldown + 0.1);
  const shell = alive(h, 'enemy_9016_acstmr')[0];
  assert.ok(shell, 'shell launched');
  assert.equal(shell.s.maxHp, E.enemy_9016_acstmr.stats.maxHp);
  const target = h.unit('t_wall');
  h.runUntil(() => !shell.alive, 60);
  const st = statuses(h, target.id, 'stun');
  assert.equal(st.length, 1);
  approx(st[0].duration, tb('enemy_9016_acstmr', 'killed.duration'));
  assert.equal(statuses(h, h.unit('t_wall2').id, 'stun').length, 1, 'neighbour tile stunned too');
  assert.equal(statuses(h, h.unit('t_wall3').id, 'stun').length, 0);
  assert.ok(target.findBuff('boss:helmShellDot'));
  // a second shell is shot down: 8 hits, no explosion
  h.run(skb('enemy_9013_acstmk', '1').cooldown - (h.b.time - skb('enemy_9013_acstmk', '1').initCooldown) + 0.2);
  const s2 = alive(h, 'enemy_9016_acstmr')[0];
  assert.ok(s2);
  for (let i = 0; i < E.enemy_9016_acstmr.stats.maxHp; i++) h.b.dealDamage(h.unit('t_wall3'), s2, { amount: 1, type: 'phys' });
  assert.ok(!s2.alive);
});

test('假想敌：胄 死亡集群: drones from the branch; a drone killed by an operator costs the leader 2 % max HP', () => {
  const h = bossArena({ hp: 675000, units: [{ chessId: 't_gun', row: 12, col: 3 }], setup: setTpl('act1autochess_h07_01') });
  h.step();
  put(h, 'enemy_9013_acstmk', [3, 10], { tag: 'boss' });
  h.step();
  const d = alive(h, 'enemy_1005_yokai')[0];
  assert.ok(d, 'drone summoned at once (icd 0)');
  const before = h.b.sharedBoss.hp;
  h.b.kill(d, h.unit('t_gun'));
  approx(before - h.b.sharedBoss.hp, 675000 * skb('enemy_9013_acstmk', '2').bb.hp_ratio);
  assert.ok(h.result().perPlayer.p1.bossDamage >= 675000 * 0.02 - 1e-6);
});

test('假想敌：胄 (隐秘核心): shells only at operators within its range', () => {
  const hi = WALL('t_wall', { atk: 900 });
  const h = bossArena({ units: [{ chessId: 't_wall', row: 10, col: 2 }, { chessId: 't_wall2', row: 12, col: 6 }], chess: { t_wall: hi } });
  h.step();
  const e = put(h, 'enemy_9013_acstmk_2', [3, 12], { tag: 'boss' });
  e.profile.noAttack = true;
  h.run(skb('enemy_9013_acstmk_2', '1').initCooldown + 0.1);
  const f = h.eventsOf('fx').find((x) => x[1] === 'shell');
  assert.ok(f);
  assert.equal(f[4].tx, h.unit('t_wall2').tileC, 'the high-ATK operator is out of range (col 2 vs 12, range 8)');
});

for (const key of ['enemy_9014_acstma', 'enemy_9015_acstmb']) {
  test(`${nm(key)}: hovers invulnerable; dives at the lowest-ATK operator; ${skb(key, '1').bb.max_hit_cnt} hits shoot it down — then ×${skb(key, '1').bb.damage_scale} damage, ${PART_TRANSFER * 100} % passed to 胄`, () => {
    const h = bossArena({ hp: 1e6, units: [{ chessId: 't_wall', row: 12, col: 3 }, { chessId: 't_gun', row: 9, col: 4 }], chess: { t_gun: chessRec({ id: 't_gun', profession: 'SNIPER', projectile: 'none', stats: { atk: 5000, maxHp: 1e7, blockCnt: 0 }, rangeGrid: BIG, skill: null }) }, kits: { t_gun: NOATK } });
    h.step();
    const boss = put(h, 'enemy_9013_acstmk_2', [3, 10], { tag: 'boss' });
    boss.profile.noAttack = true;
    const p = put(h, key, [3, 12], { tag: 'part' });
    assert.ok(p.s.flags.invulnerable && p.s.flags.untargetable);
    const s = skb(key, '1');
    h.run(s.initCooldown + 0.1);
    assert.ok(!p.s.flags.invulnerable, 'diving');
    const g = h.unit('t_gun');
    for (let i = 0; i < s.bb.max_hit_cnt; i++) h.b.dealDamage(g, p, { amount: 1, type: 'true' });
    assert.equal(p.motion, 'WALK');
    approx(p.s.dmgTakenMul, s.bb.damage_scale);
    const before = h.b.sharedBoss.hp;
    const dealt = h.b.dealDamage(g, p, { amount: 1000, type: 'true' });
    approx(before - h.b.sharedBoss.hp, dealt * PART_TRANSFER);
    h.run(s.bb.special_stun_duration + 60);
    assert.equal(p.motion, 'FLY');
  });
}

test('“斩胄之剑” dive that lands: 3×3 stun + physical DoT at the lowest-ATK operator', () => {
  const h = bossArena({ units: [{ chessId: 't_wall', row: 9, col: 11 }], hooks: ['statusApplied'] });
  h.step();
  const p = put(h, 'enemy_9014_acstma', [3, 12], { tag: 'part', move: true });
  const s = skb('enemy_9014_acstma', '1');
  h.runUntil(() => statuses(h, h.unit('t_wall').id, 'stun').length > 0, s.initCooldown + 30);
  approx(statuses(h, h.unit('t_wall').id, 'stun')[0].duration, s.bb.stun);
  assert.ok(h.unit('t_wall').findBuff('boss:bladeDiveDot'));
  h.run(20);
  assert.ok(p.s.flags.invulnerable, 'back to hover');
});

test('假想敌：铳: unblockable, targets the highest DEF in range, ASPD ramps on the same target, erosion on hit', () => {
  const h = bossArena({ units: [{ chessId: 't_wall', row: 10, col: 9 }, { chessId: 't_wall2', row: 10, col: 11 }], chess: { t_wall: WALL('t_wall', { def: 100 }), t_wall2: WALL('t_wall2', { def: 500 }) } });
  h.step();
  const e = put(h, 'enemy_9017_achunt', [3, 10], { tag: 'boss' });
  assert.ok(e.s.flags.unblockable);
  assert.equal(e.s.aspd, 20, 'data ASPD 0 → floor 20');
  h.runUntil(() => e.stats.attacks >= 3, 120);
  assert.equal(h.unit('t_wall').stats.taken, 0);
  assert.ok(h.unit('t_wall2').stats.taken > 0);
  assert.equal(e.s.aspd, 2 * tb('enemy_9017_achunt', '2.attack_speed'));
  assert.ok(h.unit('t_wall2').elem[EROSION] > 0);
});

test('假想敌：铳 最终之罚: charges at the highest-DEF ground unit, trampling units on the way (ATK×1.2)', () => {
  const h = bossArena({ units: [{ chessId: 't_wall', row: 10, col: 5 }, { chessId: 't_wall2', row: 10, col: 7 }], chess: { t_wall: WALL('t_wall', { def: 300 }) } });
  h.step();
  const e = put(h, 'enemy_9017_achunt', [3, 10], { tag: 'boss' });
  const s = skb('enemy_9017_achunt', '1');
  h.run(s.initCooldown + 0.1);
  assert.ok(h.eventsOf('fx').some((f) => f[1] === 'charge' && f[4].kind === 'finalPenance'));
  h.run(8);
  assert.ok(e.x < 8, `moved toward the target (x ${e.x})`);
  assert.ok(h.unit('t_wall2').stats.taken >= e.s.atk * tb('enemy_9017_achunt', '3.atk_scale') - 1e-6, 'trampled on the way');
});

test('假想敌：铳 (h07_02 override) never uses 最终之罚 in the regular boss round', () => {
  const h = bossArena({ units: [{ chessId: 't_wall', row: 10, col: 5 }], setup(b) { b.enemyOverrides = W.act1autochess_h07_02.overrides; } });
  h.step();
  put(h, 'enemy_9017_achunt', [3, 10], { tag: 'boss' });
  h.run(60);
  assert.ok(!h.eventsOf('fx').some((f) => f[1] === 'charge'));
});

test('假想敌：铳 (隐秘核心): damage ×0.2 while springs live; 盲信之誓 lines hurt operators on them; 末日布道 dash', () => {
  const h = bossArena({ units: [{ chessId: 't_wall', row: 10, col: 7 }], setup(b) { b.enemyOverrides = W.act1autochess_h08_02.overrides; } });
  h.step();
  const g = put(h, 'enemy_9017_achunt_2', [3, 10], { tag: 'boss' });
  const sp = put(h, 'enemy_9020_actrpc', [3, 4], { tag: 'part' });
  h.run(0.5);
  const before = h.b.sharedBoss.hp;
  const dealt = h.b.dealDamage(null, g, { amount: 1000, type: 'arts' });
  approx(before - h.b.sharedBoss.hp, 1000 * (1 - g.s.res / 100) * tb('enemy_9017_achunt_2', '4.damage_scale'));
  approx(dealt, before - h.b.sharedBoss.hp);
  const w = h.unit('t_wall');
  const t0 = w.stats.taken;
  h.run(2);
  assert.ok(w.stats.taken - t0 >= skb('enemy_9017_achunt_2', '3').bb.value, 'standing on the link');
  const s2 = W.act1autochess_h08_02.overrides.enemy_9017_achunt_2.skills.find((s) => s.prefabKey === '2');
  h.run(s2.initCooldown - h.b.time + 0.2);
  assert.ok(sp.s.flags.invulnerable && sp.mem.ab.dash);
});

test('“碎铳之簧” 法术护盾 (9018): barrier absorbs arts, physical ×0.1 with a counter; damage passes to 铳', () => {
  const h = bossArena({ units: [{ chessId: 't_gun', row: 12, col: 3 }] });
  h.step();
  put(h, 'enemy_9017_achunt_2', [3, 18], { tag: 'boss' }).profile.noAttack = true;
  const sp = put(h, 'enemy_9018_actrpa', [3, 10], { tag: 'part' });
  sp.profile.noAttack = true;
  const g = h.unit('t_gun');
  assert.ok(sp.s.flags.unblockable);
  h.b.dealDamage(g, sp, { amount: 1000, type: 'arts' });
  assert.equal(sp.hp, sp.s.maxHp, 'absorbed by the barrier');
  const pool0 = h.b.sharedBoss.hp;
  const dealt = h.b.dealDamage(g, sp, { amount: 10000, type: 'phys' });
  approx(dealt, (10000 - sp.s.def) * tb('enemy_9018_actrpa', '1.damage_scale'));
  approx(pool0 - h.b.sharedBoss.hp, dealt * PART_TRANSFER);
  assert.ok(g.stats.taken > 0 && g.elem[EROSION] > 0, 'counter');
});

test('“碎铳之簧” 元素护盾 (9019): phys/arts ×0.1 until its own element burst breaks the shield; every (spCost+1)-th attack adds a bouncing erosion shot', () => {
  const h = bossArena({ units: [{ chessId: 't_wall', row: 10, col: 9 }, { chessId: 't_wall2', row: 10, col: 8 }] });
  h.step();
  const sp = put(h, 'enemy_9019_actrpb', [3, 10], { tag: 'part' });
  const d = h.b.dealDamage(null, sp, { amount: 10000, type: 'true' });
  approx(d, 10000);
  const p = h.b.dealDamage(null, sp, { amount: 10000, type: 'phys' });
  approx(p, (10000 - sp.s.def) * tb('enemy_9019_actrpb', '1.damage_scale'));
  const sk = skb('enemy_9019_actrpb', '1');
  h.runUntil(() => sp.stats.attacks >= sk.spCost, 60);
  assert.ok(!h.eventsOf('fx').some((f) => f[1] === 'beam' && f[4].kind === 'springBullet'), 'not before the skill attack');
  h.runUntil(() => sp.stats.attacks >= sk.spCost + 1, 30);
  assert.ok(h.eventsOf('fx').some((f) => f[1] === 'beam' && f[4].kind === 'springBullet'));
  assert.ok(h.unit('t_wall').elem[EROSION] > 0 && h.unit('t_wall2').elem[EROSION] > 0, 'bounced');
  h.b.dealDamage(null, sp, { type: 'element', element: 'burn', amount: 1000 });
  assert.ok(!sp.s.flags.unblockable, 'shield down');
  approx(h.b.dealDamage(null, sp, { amount: 10000, type: 'phys' }), 10000 - sp.s.def);
});

test('“碎铳之簧” 频次护盾 (9020): negates 5 hits, then comes back 25 s after breaking; every (spCost+1)-th attack adds a ten-hit combo while shielded', () => {
  const h = bossArena({ units: [{ chessId: 't_wall', row: 10, col: 9 }] });
  h.step();
  const sp = put(h, 'enemy_9020_actrpc', [3, 10], { tag: 'part' });
  sp.profile.noAttack = true;
  for (let i = 0; i < tb('enemy_9020_actrpc', '1.block_damage_max_times'); i++) h.b.dealDamage(null, sp, { amount: 5000, type: 'true' });
  assert.equal(sp.hp, sp.s.maxHp);
  assert.ok(!sp.s.flags.unblockable);
  assert.ok(sp.hp - h.b.dealDamage(null, sp, { amount: 5000, type: 'true' }) < sp.s.maxHp);
  h.run(tb('enemy_9020_actrpc', '1.regenerate_duration') + 0.2);
  assert.ok(sp.s.flags.unblockable, 'shield regenerated');
  sp.profile.noAttack = false;
  const w = h.unit('t_wall');
  const sk = skb('enemy_9020_actrpc', '1');
  const n = sk.spCost + 1;
  h.runUntil(() => sp.stats.attacks >= n, 60);
  h.run(0.5);
  const combos = h.eventsOf('fx').filter((f) => f[1] === 'beam' && f[4].kind === 'springCombo').length;
  assert.equal(combos, 1);
  approx(w.stats.taken, n * sp.s.atk + 10 * sp.s.atk * sk.bb.atk_scale);
});

test('“碎铳之簧”: damage taken passes PART_TRANSFER to 假想敌：铳 and, split, to the other springs (never passed on twice)', () => {
  const h = bossArena({ units: [{ chessId: 't_gun', row: 12, col: 3 }], kits: { t_gun: NOATK } });
  h.step();
  const g = put(h, 'enemy_9017_achunt_2', [3, 18], { tag: 'boss' });
  g.profile.noAttack = true;
  const [a, b, c] = ['enemy_9018_actrpa', 'enemy_9019_actrpb', 'enemy_9020_actrpc'].map((k, i) => put(h, k, [1 + i * 2, 4], { tag: 'part' }));
  for (const x of [a, b, c]) x.profile.noAttack = true;
  h.step();
  const pool0 = h.b.sharedBoss.hp, b0 = b.hp, c0 = c.hp;
  const dealt = h.b.dealDamage(h.unit('t_gun'), a, { amount: 1e5, type: 'true' });
  assert.ok(dealt > 0);
  approx(pool0 - h.b.sharedBoss.hp, dealt * PART_TRANSFER);
  approx(b0 - b.hp, (dealt * PART_TRANSFER) / 2);
  approx(c0 - c.hp, (dealt * PART_TRANSFER) / 2);
});

test('假想敌：管: strikes dark 余音 (their pulse hurts operators); 裂管之奏 at 40 s; summons 余音 every 40 s', () => {
  const h = bossArena({ units: [{ chessId: 't_wall', row: 10, col: 6 }], setup: setTpl('act1autochess_h07_03') });
  h.step();
  const e = put(h, 'enemy_9021_acduml', [3, 10], { tag: 'boss' });
  const echo = put(h, 'enemy_9023_acdums', [3, 6], { tag: 'part' });
  assert.equal(echo.mem.ab.form, 'dark');
  assert.equal(e.s.interval, E.enemy_9021_acduml.stats.bat * 100 / 20);
  h.run(e.s.interval + 0.2);
  assert.ok(h.eventsOf('fx').some((f) => f[1] === 'beam' && f[4].kind === 'acdumlStrike'));
  assert.ok(h.unit('t_wall').stats.taken > 0 && h.unit('t_wall').elem.apoptosis > 0);
  h.run(skb('enemy_9021_acduml', '1').initCooldown - h.b.time + 1.2);
  const strikes = h.eventsOf('fx').filter((f) => f[1] === 'explode' && f[4].kind === 'pipeStrike').length;
  assert.ok(strikes >= 3 && strikes % 3 === 0, `three strikes per dark echo (${strikes})`);
  assert.ok(alive(h, 'enemy_9023_acdums').length >= 2, 'summoned');
});

test('假想敌：管 (隐秘核心) + 假想敌：弦: 弦 is invulnerable, 断弦之奏 flips gold 余音 dark; 弦 leaves when 管 falls', () => {
  const h = bossArena({ units: [{ chessId: 't_wall', row: 10, col: 6 }], setup: setTpl('act1autochess_h08_03') });
  h.step();
  const pipe = put(h, 'enemy_9021_acduml_2', [3, 10], { tag: 'boss' });
  const str = put(h, 'enemy_9022_acdumm', [3, 11], { tag: 'part' });
  assert.ok(str.s.flags.invulnerable);
  const echo = put(h, 'enemy_9023_acdums', [3, 6], { tag: 'part' });
  bossesMod.setEchoForm(h.b, echo, 'gold');
  h.run(skb('enemy_9022_acdumm', '1').initCooldown + 0.1);
  assert.equal(echo.mem.ab.form, 'dark');
  assert.ok(h.unit('t_wall').stats.taken > 0);
  h.b.kill(pipe, null);
  assert.ok(!str.alive);
});

test('“余音”: 10-hit unit held only by block ≥2; pulses when hit; forms swap after 10 strikes; 合奏 every 5 s', () => {
  const h = bossArena({ units: [{ chessId: 't_wall', row: 10, col: 6 }, { chessId: 't_blade', row: 11, col: 6 }], kits: { t_blade: NOATK } });
  h.step();
  const e = put(h, 'enemy_9023_acdums', [3, 6], { tag: 'part' });
  assert.equal(e.s.maxHp, E.enemy_9023_acdums.stats.maxHp);
  assert.equal(e.blockWeight, 2);
  assert.equal(e.mem.ab.form, 'dark');
  approx(e.s.atk, E.enemy_9023_acdums.stats.atk * (1 + tb('enemy_9023_acdums', '2.atk')));
  h.b.dealDamage(h.unit('t_blade'), e, { amount: 1e6, type: 'phys' });
  assert.equal(e.hp, e.s.maxHp - 1, 'one hit = 1');
  assert.ok(h.unit('t_wall').stats.taken > 0, 'pulse when hit');
  for (let i = 1; i < tb('enemy_9023_acdums', '2.hit_times_to_switch'); i++) bossesMod.echoHit(h.b, e);
  assert.equal(e.mem.ab.form, 'gold');
  assert.equal(e.s.aspd, 100 + tb('enemy_9023_acdums', '1.attack_speed'));
  const e2 = put(h, 'enemy_9023_acdums', [4, 7], { tag: 'part' });
  const t0 = h.unit('t_wall').stats.taken;
  h.run(skb('enemy_9023_acdums', 'Skill').initCooldown + 0.1);
  assert.ok(h.eventsOf('fx').some((f) => f[1] === 'explode' && /ensemble/.test(f[4].kind)));
  assert.ok(h.unit('t_wall').stats.taken > t0 && e2.alive);
  for (let i = 0; i < E.enemy_9023_acdums.stats.maxHp - 1; i++) h.b.dealDamage(h.unit('t_blade'), e, { amount: 1, type: 'phys' });
  assert.ok(!e.alive, 'the 10th hit knocks it out');
});

test('盐风主教昆图斯: 2 highest-DEF targets + neural; 崩坍 / 大潮 / 断裂生殖; growth by lost HP; 物种爆发 LP loss', () => {
  const tpl = W.act1autochess_h07_04;
  const ov = JSON.parse(JSON.stringify(tpl.overrides));
  ov.enemy_1521_dslily.skills.find((s) => s.prefabKey === 'Doom').initCooldown = 1;
  const h = bossArena({ units: [{ chessId: 't_wall', row: 10, col: 9 }, { chessId: 't_wall2', row: 11, col: 9 }, { chessId: 't_wall3', row: 12, col: 4 }],
    chess: { t_wall: WALL('t_wall', { def: 300 }), t_wall2: WALL('t_wall2', { def: 200 }) }, hooks: ['statusApplied', 'lpLoss'],
    setup(b) { b.opts.templateId = 'act1autochess_h07_04'; b.enemyOverrides = ov; } });
  h.step();
  const e = put(h, 'enemy_1521_dslily', [3, 10], { tag: 'boss' });
  h.runUntil(() => e.stats.attacks >= 1, 20);
  h.run(0.5);
  assert.ok(h.unit('t_wall').stats.taken > 0 && h.unit('t_wall2').stats.taken > 0);
  assert.equal(h.unit('t_wall3').stats.taken, 0);
  assert.ok(h.unit('t_wall').elem.neural > 0);
  h.run(skb('enemy_1521_dslily', 'Rockfall').initCooldown - h.b.time + ROCK);
  assert.ok(h.eventsOf('fx').some((f) => f[1] === 'rockfall'));
  h.run(skb('enemy_1521_dslily', 'Tidewater').initCooldown - h.b.time + 0.2);
  assert.ok(h.eventsOf('fx').some((f) => f[1] === 'tide') && h.unit('t_wall3').stats.taken > 0, 'global tide');
  h.run(skb('enemy_1521_dslily', 'SummonTentac').initCooldown - h.b.time + 0.2);
  assert.ok(h.eventsOf('fx').some((f) => f[1] === 'tentacle'));
  const atk0 = e.s.atk;
  h.b.sharedBoss.hp = h.b.sharedBoss.maxHp * 0.6;
  h.run(0.5);
  approx(e.s.atk, atk0 * (1 + tb('enemy_1521_dslily', 'atkup1.atk')));
  h.b.sharedBoss.hp = h.b.sharedBoss.maxHp * 0.3;
  h.run(0.5);
  approx(e.s.atk, atk0 * (1 + tb('enemy_1521_dslily', 'atkup2.atk')));
  h.run(6);
  assert.equal(h.hooksOf('lpLoss')[0].amount, 100);
  assert.equal(h.result().lpLoss ?? h.b.result().lpLoss ?? 100, 100);
});
const ROCK = 1.3;

test('卢西恩: evades 40 % while unblocked, ignores 40 % DEF, neural on hit; blinks past its blocker leaving a 不祥幻影', () => {
  const h = bossArena({ units: [{ chessId: 't_wall', row: 9, col: 6 }], chess: { t_wall: WALL('t_wall', { def: 500 }) }, captureNoisy: true, hooks: ['damaged'] });
  h.step();
  const e = put(h, 'enemy_2016_csphtm', [2, 8], { tag: 'boss', move: true, route: { motion: 'WALK', start: [2, 8], end: [2, 2], checkpoints: [] } });
  h.step(2);
  assert.equal(e.s.dodgePhys, tb('enemy_2016_csphtm', 'evade.prob'));
  h.runUntil(() => e.blockedBy, 20);
  h.step(2);
  assert.equal(e.s.dodgePhys, 0);
  h.runUntil(() => e.stats.attacks >= 1, 10);
  const hit = h.hooksOf('damaged').find((c) => c.source === e && c.dmg.isAttack);
  approx(hit.amount, e.s.atk - 500 * (1 - tb('enemy_2016_csphtm', 'penetrate.def_penetrate')));
  assert.ok(h.unit('t_wall').elem.neural > 0);
  h.run(skb('enemy_2016_csphtm', 'blink').initCooldown + 0.5);
  assert.equal(alive(h, 'enemy_2017_csphts').length, 1);
  assert.ok(e.x < 6 - 0.5, `blinked past (x ${e.x})`);
  assert.ok(h.eventsOf('fx').some((f) => f[1] === 'explode' && f[4].kind === 'crimsonAoe'));
});

test('不祥幻影: same evade / DEF penetration / AoE skill (radius 2) as 卢西恩, no blink', () => {
  const h = arena({ units: [{ chessId: 't_wall', row: 10, col: 6 }, { chessId: 't_wall2', row: 11, col: 6 }] });
  h.step();
  const e = put(h, 'enemy_2017_csphts', [10, 7]);
  h.step(2);
  assert.equal(e.s.dodgePhys, tb('enemy_2017_csphts', 'evade.prob'));
  approx(e.s.defIgnorePct, tb('enemy_2017_csphts', 'penetrate.def_penetrate'));
  h.run(skb('enemy_2017_csphts', 'aoe').initCooldown + 0.1);
  assert.ok(h.unit('t_wall').stats.taken > 0 && h.unit('t_wall2').stats.taken > 0);
  assert.ok(h.unit('t_wall2').elem.neural > 0);
});

test('阿利斯泰尔: 王权号令 strikes a plus shape (ATK×2) and drops equipment; 莫非王土 animates it; ≤50 %: DEF/RES up; 斥退 LP loss', () => {
  const tpl = W.act1autochess_h07_06;
  const ov = JSON.parse(JSON.stringify(tpl.overrides));
  ov.enemy_9032_aclionk.skills.find((s) => s.prefabKey === 'Suicide').initCooldown = 30;
  const h = bossArena({ units: [{ chessId: 't_wall', row: 10, col: 9 }, { chessId: 't_wall2', row: 11, col: 9 }], hooks: ['lpLoss'], setup(b) { b.enemyOverrides = ov; } });
  h.step();
  const e = put(h, 'enemy_9032_aclionk', [3, 11], { tag: 'boss' });
  e.profile.noAttack = true;
  const cost = ov.enemy_9032_aclionk.skills.find((s) => s.prefabKey === 'equip').spCost;
  h.run(cost + 0.1);
  assert.ok(h.eventsOf('fx').some((f) => f[1] === 'telegraph' && f[4].kind === 'royalDecree'));
  approx(h.unit('t_wall').stats.taken + h.unit('t_wall2').stats.taken, 2 * e.s.atk * 2);
  const eq = h.b.units.filter((u) => /enemy_100(28|29|30)/.test(u.defId));
  assert.equal(eq.length, 1);
  assert.ok(eq[0].s.flags.invulnerable && eq[0].s.flags.untargetable);
  h.run(2.2);
  assert.ok(!eq[0].alive, 'animated & consumed');
  h.b.sharedBoss.hp = h.b.sharedBoss.maxHp * 0.4;
  h.step(2);
  assert.equal(e.s.def, Math.round(E.enemy_9032_aclionk.stats.def * (1 + tb('enemy_9032_aclionk', 'advance.def'))));
  h.run(30 - h.b.time + 0.2);
  assert.equal(h.hooksOf('lpLoss')[0].amount, 100);
});

for (const key of ['enemy_10028_vtswd', 'enemy_10029_vtshld', 'enemy_10030_vtwand']) {
  test(`${nm(key)}: dropped equipment is inert (invulnerable, untargetable, never moves) until animated`, () => {
    const h = bossArena({ units: [{ chessId: 't_gun', row: 12, col: 3 }] });
    h.step();
    const q = put(h, key, [3, 6], { tag: 'part', move: true, route: { motion: 'FLY', start: [3, 6], end: [3, 6], steps: [{ t: 'wait', s: 999 }] } });
    h.run(3);
    assert.ok(q.alive && q.s.flags.invulnerable && q.s.flags.untargetable);
    assert.equal(q.stats.taken, 0);
  });
}

test('阿利斯泰尔 防护背心: an animated vest gives a barrier and −80 % damage from its side', () => {
  const h = bossArena({ units: [{ chessId: 't_gun', row: 10, col: 4 }, { chessId: 't_mage', row: 10, col: 16 }], kits: { t_gun: NOATK, t_mage: NOATK } });
  h.step();
  const e = put(h, 'enemy_9032_aclionk', [3, 10], { tag: 'boss' });
  e.profile.noAttack = true;
  const vest = put(h, 'enemy_10029_vtshld', [3, 8], { tag: 'part' });
  h.run(2.2);
  assert.ok(!vest.alive, 'animated & consumed');
  const v = e.findBuff('boss:vest');
  const st = skb('enemy_9032_aclionk', 'store').bb;
  assert.equal(v.shield, st.dynamic);
  h.b.dealDamage(h.unit('t_gun'), e, { amount: 1000, type: 'true' });      // from the vest side (left)
  approx(v.shield, st.dynamic - 1000 * (1 - st.damage_resistance));
  h.b.dealDamage(h.unit('t_mage'), e, { amount: 1000, type: 'true' });     // from the other side
  approx(v.shield, st.dynamic - 1000 * (1 - st.damage_resistance) - 1000);
});

test('阿利斯泰尔 未装配刀片 / 冲击式施术单元: sword strike (ATK×2) / next attack becomes arts and disarms', () => {
  const h = bossArena({ units: [{ chessId: 't_wall', row: 10, col: 9 }], hooks: ['statusApplied'] });
  h.step();
  const e = put(h, 'enemy_9032_aclionk', [3, 10], { tag: 'boss' });
  e.profile.noAttack = true;
  put(h, 'enemy_10028_vtswd', [3, 8], { tag: 'part' });
  h.run(2.2);
  approx(h.unit('t_wall').stats.taken, e.s.atk * skb('enemy_9032_aclionk', 'store').bb.atk_scale);
  const w2 = put(h, 'enemy_10030_vtwand', [4, 8], { tag: 'part' });
  e.profile.noAttack = false;
  h.runUntil(() => !w2.alive, 30);
  h.runUntil(() => statuses(h, h.unit('t_wall').id, 'disarm').length > 0, 30);
  assert.ok(h.eventsOf('dmg').some((d) => d[1] === h.unit('t_wall').id && d[3] === 'arts'));
});

test('“萨米的意志”: 冰凌 hits a whole column; 自然涌动 stun + arts/s; <50 %: damage ×(1−0.6) and 2 columns; Doom LP loss', () => {
  const ov = { enemy_9033_acdeer: { skills: E.enemy_9033_acdeer.skills.map((s) => (s.prefabKey === 'Doom' ? { ...s, initCooldown: 50 } : s)) } };
  const h = bossArena({ units: [{ chessId: 't_wall', row: 9, col: 6 }, { chessId: 't_wall2', row: 12, col: 6 }, { chessId: 't_wall3', row: 10, col: 8 }], hooks: ['statusApplied', 'lpLoss'], setup(b) { b.enemyOverrides = ov; } });
  h.step();
  const e = put(h, 'enemy_9033_acdeer', [3, 10], { tag: 'boss' });
  h.run(e.s.interval + 0.1);
  const col = [h.unit('t_wall'), h.unit('t_wall2'), h.unit('t_wall3')].filter((u) => u.stats.taken > 0);
  assert.ok(col.length >= 1 && col.every((u) => u.tileC === col[0].tileC));
  if (col[0].tileC === 6) assert.equal(col.length, 2, 'both units of column 6');
  h.run(skb('enemy_9033_acdeer', 'Lasso').initCooldown - h.b.time + 0.1);
  const st = h.hooksOf('statusApplied').filter((c) => c.status === 'stun');
  assert.equal(st.length, 1);
  approx(st[0].duration, skb('enemy_9033_acdeer', 'Lasso').bb.projectile_life_time);
  h.b.sharedBoss.hp = h.b.sharedBoss.maxHp * 0.4;
  h.run(0.5);
  approx(e.s.physTakenMul, 1 - tb('enemy_9033_acdeer', 'Madness.damage_resistance'));
  approx(e.s.artsTakenMul, 1 - tb('enemy_9033_acdeer', 'Madness.damage_resistance'));
  h.run(50 - h.b.time + 0.2);
  assert.equal(h.hooksOf('lpLoss')[0].amount, Math.abs(skb('enemy_9033_acdeer', 'Doom').bb.value));
});

test('“萨米的意志” on a two-player field: 冰凌 columns alternate between the players (both deploy at t = 0)', () => {
  const players = ['p1', 'p2'].map((pid, i) => ({ playerId: pid, seat: i, side: i ? 'R' : 'L', colOffset: 0, units: [{ chessId: 't_wall', row: 10, col: 5 }], bonds: {}, playerEffects: [] }));
  const h = arena({ kind: 'boss', sharedBoss: pool(1e6), players });
  h.step();
  const e = put(h, 'enemy_9033_acdeer', [3, 10], { tag: 'boss' });
  h.run(e.s.interval * 3 + 0.2);
  const cols = h.eventsOf('fx').filter((f) => f[1] === 'column').map((f) => f[4].c);
  assert.equal(cols.length, 4);
  assert.deepEqual(new Set(cols), new Set([5, 15]));
  for (let i = 1; i < cols.length; i++) assert.notEqual(cols[i], cols[i - 1], 'alternates');
  const [a, b] = h.allies();
  assert.ok(a.stats.taken > 0 && b.stats.taken > 0);
});

test('boss template: patrol leaders loop instead of leaking, and the mirrored copy spawns for two players', () => {
  const tpl = W.act2autochess_h07_05;
  const players = ['p1', 'p2'].map((pid, i) => ({ playerId: pid, seat: i, side: i ? 'R' : 'L', colOffset: 0, units: [], bonds: {}, playerEffects: [] }));
  const h = arena({ kind: 'boss', sharedBoss: pool(1e6), players, waveTemplate: tpl, routes: undefined, setup(b) { b.enemyOverrides = tpl.overrides; } });
  h.run(1);
  assert.equal(h.enemies().filter((e) => e.defId === 'enemy_2016_csphtm').length, 2, 'mirrored 卢西恩');
  h.run(240);
  assert.equal(h.enemies().filter((e) => e.defId === 'enemy_2016_csphtm').length, 2, 'still patrolling');
  assert.ok(!h.result().perPlayer.p1.leaked.some((l) => l.enemyKey === 'enemy_2016_csphtm'));
  checkInvariants(h.b);
});

test('determinism: the same boss round with the same seed produces the same outcome', () => {
  const run = () => {
    const h = arena({ kind: 'hidden', sharedBoss: pool(5e5), waveTemplate: W.act1autochess_h08_02, routes: undefined,
      units: [{ chessId: 't_gun', row: 10, col: 5 }, { chessId: 't_wall', row: 9, col: 7 }, { chessId: 't_mage', row: 11, col: 4 }], setup(b) { b.enemyOverrides = W.act1autochess_h08_02.overrides; } });
    h.run(90);
    checkInvariants(h.b);
    return [Math.round(h.b.sharedBoss.hp), h.b.enemies.filter((e) => e.alive).length, h.unit('t_gun').stats.taken, h.b.errorCount];
  };
  const a = run(), b = run();
  assert.deepEqual(a, b);
  assert.equal(a[3], 0);
});