/** * 1.13c Numerical & Runtime Verification Suite — Skill #021: Ice Arrow (AMA) * Gitea Tracking Issue: #175 */ import { describe, expect, it } from 'vitest' import { getSharedDataRegistry } from '../../../src/baker/mpq-archive-source.ts' import { UnitStatList } from '../../../src/server/engine/stat-list.ts' import { WorldArena } from '../../../src/server/engine/world-arena.ts' import { skillModule } from '../../../src/server/skills/impl/ama/skill-021-ice-arrow.ts' import { calculateIceArrowStats } from '../../../src/common/skills/amazon-bow.ts' describe('[Skill #021] Ice Arrow (AMA) — 1.13c Parity (Issue #175)', () => { it('evaluates exact 1.13c Skills.txt / Missiles.txt formulas at slvl 1, 10, and 20', async () => { const registry = await getSharedDataRegistry() const skillRec = registry.getSkillById(21)! expect(skillRec).toBeDefined() expect(skillModule.skillId).toBe(21) expect(skillModule.name).toBe("Ice Arrow") expect(skillModule.charClass).toBe("ama") const stats1 = new UnitStatList() stats1.setBaseSkillLevel(21, 1) const r1 = skillModule.evaluate!({ registry, skill: skillRec, slvl: 1, blvl: 1, statList: stats1 }) expect(r1.manaCost).toBe(4) expect(r1.manaCost256).toBe(1024) expect(r1.minPhysDmg).toBe(0) expect(r1.maxPhysDmg).toBe(0) expect(r1.minElemDmg256).toBe(1536) expect(r1.maxElemDmg256).toBe(2560) const stats10 = new UnitStatList() stats10.setBaseSkillLevel(21, 10) const r10 = skillModule.evaluate!({ registry, skill: skillRec, slvl: 10, blvl: 10, statList: stats10 }) expect(r10.manaCost).toBe(6) expect(r10.manaCost256).toBe(1600) expect(r10.minPhysDmg).toBe(0) expect(r10.maxPhysDmg).toBe(0) expect(r10.minElemDmg256).toBe(18432) expect(r10.maxElemDmg256).toBe(19968) const stats20 = new UnitStatList() stats20.setBaseSkillLevel(21, 20) const r20 = skillModule.evaluate!({ registry, skill: skillRec, slvl: 20, blvl: 20, statList: stats20 }) expect(r20.manaCost).toBe(8) expect(r20.manaCost256).toBe(2240) expect(r20.minPhysDmg).toBe(0) expect(r20.maxPhysDmg).toBe(0) expect(r20.minElemDmg256).toBe(55296) expect(r20.maxElemDmg256).toBe(59392) expect(r20.durationFrames).toBe(145) expect(r20.radiusSubtiles).toBe(0) expect(r20.petMax).toBe(0) expect(r20.cooldownFrames).toBe(0) }) it('enforces 1.13c blvl synergy rule (hard points boost synergy; +skills and item charges do NOT)', async () => { const registry = await getSharedDataRegistry() const skillRec = registry.getSkillById(21)! const synId = 11 const statsBase = new UnitStatList() statsBase.setBaseSkillLevel(21, 20) if (synId !== null) { statsBase.setBaseSkillLevel(synId, 20) } const withHardPoints = skillModule.evaluate!({ registry, skill: skillRec, slvl: 20, blvl: 20, statList: statsBase, }) expect(withHardPoints.synergyBonusPct).toBe(160) // +20 allskills and +33 Marrowwalk charges without hard points must yield 0 synergy const statsSoftOnly = new UnitStatList() statsSoftOnly.setBaseSkillLevel(21, 20) statsSoftOnly.addStat('item_allskills', 20) if (synId !== null) { statsSoftOnly.setChargedSkillLevel(synId, 33) } const withSoftOnly = skillModule.evaluate!({ registry, skill: skillRec, slvl: 20, blvl: 20, statList: statsSoftOnly, }) expect(withSoftOnly.synergyBonusPct).toBe(0) }) it('executes runtime skill effect in WorldArena (castCount, action frame, and combat/state/missile/summon outcome)', async () => { const registry = await getSharedDataRegistry() const arena = new WorldArena({ registry, classCode: "ama", skillId: 21, slvl: 20, }) const outcome = arena.triggerCast() arena.stepTicks(15) const dbg = arena.getDebugState() expect(dbg.ready).toBe(true) expect(dbg.skillId).toBe(21) expect(dbg.castCount).toBeGreaterThanOrEqual(1) expect(dbg.actionFrameTriggered).toBe(true) expect(outcome?.executed).toBe(true) }) it('validates 1.13c calculateIceArrowStats pure calculations and freeze invariants', () => { // Level 1: 6-10 cold dmg, 50 frames freeze duration, +20% AR, 4.0 mana const s1 = calculateIceArrowStats(1) expect(s1.minDamage).toBe(6) expect(s1.maxDamage).toBe(10) expect(s1.freezeFrames).toBe(50) expect(s1.toHitBonusPct).toBe(20) expect(s1.manaCost).toBe(4.0) // Level 10: 72-78 cold dmg, 95 frames freeze duration, +101% AR, 6.25 mana const s10 = calculateIceArrowStats(10) expect(s10.minDamage).toBe(72) expect(s10.maxDamage).toBe(78) expect(s10.freezeFrames).toBe(95) expect(s10.toHitBonusPct).toBe(101) expect(s10.manaCost).toBe(6.25) // Level 20: 216-232 cold dmg, 145 frames freeze duration, +191% AR, 8.75 mana const s20 = calculateIceArrowStats(20) expect(s20.minDamage).toBe(216) expect(s20.maxDamage).toBe(232) expect(s20.freezeFrames).toBe(145) expect(s20.toHitBonusPct).toBe(191) expect(s20.manaCost).toBe(8.75) // Synergies test: Cold Arrow +8% damage/lvl, Freezing Arrow +5% freeze length/lvl const s20Syn = calculateIceArrowStats(20, { coldArrow: 20, freezingArrow: 20 }) expect(s20Syn.dmgSynergyMultiplier).toBe(2.6) // 1 + 20 * 0.08 expect(s20Syn.lenSynergyMultiplier).toBe(2.0) // 1 + 20 * 0.05 expect(s20Syn.minDamage).toBe(Math.floor(216 * 2.6)) expect(s20Syn.maxDamage).toBe(Math.floor(232 * 2.6)) expect(s20Syn.freezeFrames).toBe(Math.floor(145 * 2.0)) // Monotonicity checks for (let lvl = 1; lvl < 30; lvl++) { const cur = calculateIceArrowStats(lvl) const nxt = calculateIceArrowStats(lvl + 1) expect(nxt.minDamage).toBeGreaterThanOrEqual(cur.minDamage) expect(nxt.maxDamage).toBeGreaterThanOrEqual(cur.maxDamage) expect(nxt.freezeFrames).toBeGreaterThan(cur.freezeFrames) expect(nxt.toHitBonusPct).toBeGreaterThan(cur.toHitBonusPct) expect(nxt.manaCost).toBeGreaterThan(cur.manaCost) } // Boundary resilience const sZero = calculateIceArrowStats(0) expect(sZero.minDamage).toBe(6) expect(sZero.manaCost).toBe(4.0) const sNeg = calculateIceArrowStats(-2) expect(sNeg.minDamage).toBe(6) const sNan = calculateIceArrowStats(NaN) expect(sNan.minDamage).toBe(6) const sFrac = calculateIceArrowStats(9.4) expect(sFrac.minDamage).toBe(calculateIceArrowStats(9).minDamage) }) })