diablo2-web/tests/skills/nec/adv-pnb-synergy-stress.test.ts

482 lines
22 KiB
TypeScript

/**
* Adversarial Challenger Test Suite: Necromancer Poison & Bone Spells
* Milestone M2 Numerical Boundary & Synergy Stress Audit
*
* Ground Truth: Diablo II v1.13c (D2Common.dll, D2Game.dll, Skills.txt, Missiles.txt)
* Worktree: .worktrees/necro-poison-bone
*
* Verifies:
* 1. Teeth count scaling up to the strict 24 cap: min(ln12, 24).
* 2. Bone Armor capacity (20 base, 110 at slvl 10, 210 at slvl 20 + 15/pt synergy),
* and physical absorption exclusivity (absorbs physical only; zero absorption of
* elemental, magic, or poison damage).
* 3. Poison Dagger weapon restriction (rejects bare hands, swords, axes, bows, maces,
* staves, polearms; accepts daggers), attack rating scaling, and poison bitrate/duration.
* 4. Poison Nova fixed 50 frames (2.0s) duration across all skill levels and synergies.
* 5. Cross-skill synergy isolation (hard points only, no cross-pollution).
*/
import { describe, expect, it } from 'vitest'
import {
BATCH1_SKILLS,
calculateTeethCount,
calculateTeethDamage,
calculateTeethSynergyMultiplier,
calculateBoneArmorCapacity,
calculateBoneArmorSynergyBonus,
calculatePoisonDaggerAttackRatingBonus,
calculatePoisonDaggerDamage,
calculatePoisonDaggerSynergyMultiplier,
calculatePoisonNovaDamage,
calculatePoisonNovaSynergyMultiplier,
spawnPoisonNovaRing,
calculateBoneSpearDamage,
calculateBoneSpearSynergyMultiplier,
calculateBoneSpiritDamage,
calculateBoneSpiritSynergyMultiplier,
calculateCorpseExplosionDamage,
calculateCorpseExplosionRadiusYards,
calculateCorpseExplosionRadiusPx,
calculateBoneWallStats,
calculateBonePrisonStats,
calculatePoisonExplosionDamage,
calculatePoisonExplosionSynergyMultiplier,
calculateSkillDamage,
ISO_GROUND_ASPECT_RATIO,
} from '../../../src/game/skills.ts'
import { getAttackWeaponInfo } from '../../../src/scene/act-scene.ts'
import { StateBus } from '../../../src/game/engine/state-bus.ts'
import { UnitStatList, FIXED_ONE } from '../../../src/game/engine/stat-list.ts'
describe('Adversarial Challenger: Necromancer Poison & Bone Synergy & Boundary Stress', () => {
// =========================================================================
// Challenge Dimension 1: Teeth Projectile Count & Scaling Boundary Stress
// =========================================================================
describe('Dimension 1: Teeth Projectile Count min(ln12, 24) Cap Stress', () => {
it('scales teeth count strictly linearly from slvl 1 to 23, then caps at 24 at slvl 23+', () => {
// ln12 formula: par1 + (lvl - 1) * par2 = 2 + (lvl - 1) * 1
for (let lvl = 1; lvl <= 22; lvl++) {
const expected = 2 + (lvl - 1)
expect(calculateTeethCount(lvl)).toBe(expected)
}
// Exact boundary transition: slvl 22 -> 23 teeth, slvl 23 -> 24 teeth (cap reached)
expect(calculateTeethCount(22)).toBe(23)
expect(calculateTeethCount(23)).toBe(24)
expect(calculateTeethCount(24)).toBe(24)
expect(calculateTeethCount(25)).toBe(24)
expect(calculateTeethCount(30)).toBe(24)
expect(calculateTeethCount(50)).toBe(24)
expect(calculateTeethCount(99)).toBe(24)
})
it('robustly clamps non-standard boundary inputs (<=0, floats, NaN, Infinity)', () => {
expect(calculateTeethCount(0)).toBe(2)
expect(calculateTeethCount(-10)).toBe(2)
expect(calculateTeethCount(1.7)).toBe(2)
expect(calculateTeethCount(23.9)).toBe(24)
expect(calculateTeethCount(Number.NaN)).toBe(2)
// Non-finite input falls back safely to slvl 1 (2 teeth)
expect(calculateTeethCount(Infinity)).toBe(2)
// Large finite level hits the 24 cap
expect(calculateTeethCount(9999)).toBe(24)
})
it('stress-tests Teeth synergy multiplier under extreme hard points (up to 80 points)', () => {
// 0 synergy points: 1.0x
expect(calculateTeethSynergyMultiplier({})).toBe(1.0)
expect(calculateTeethSynergyMultiplier({ boneWall: 0, bonePrison: 0 })).toBe(1.0)
// 4 synergies maxed at 20 hard points each = 80 points * 15% = +1200% -> 13.0x multiplier
const maxSynergies = {
boneWall: 20,
bonePrison: 20,
boneSpear: 20,
boneSpirit: 20,
}
expect(calculateTeethSynergyMultiplier(maxSynergies)).toBe(13.0)
// Damage scaling under 80 synergy points
const d1Max = calculateTeethDamage(1, maxSynergies)
expect(d1Max.min).toBe(Math.floor(2 * 13.0)) // 26
expect(d1Max.max).toBe(Math.floor(4 * 13.0)) // 52
const d20Max = calculateTeethDamage(20, maxSynergies)
expect(d20Max.min).toBe(Math.floor(23 * 13.0)) // 299
expect(d20Max.max).toBe(Math.floor(31 * 13.0)) // 403
})
})
// =========================================================================
// Challenge Dimension 2: Bone Armor Capacity & Physical Absorption Stress
// =========================================================================
describe('Dimension 2: Bone Armor Capacity & Physical Absorption Exclusivity', () => {
it('evaluates exact 1.13c capacity progression: 20 base, 110 at slvl 10, 210 at slvl 20', () => {
expect(calculateBoneArmorCapacity(1)).toBe(20)
expect(calculateBoneArmorCapacity(10)).toBe(110)
expect(calculateBoneArmorCapacity(20)).toBe(210)
expect(calculateBoneArmorCapacity(30)).toBe(310)
expect(calculateBoneArmorCapacity(99)).toBe(1000)
// Extreme inputs
expect(calculateBoneArmorCapacity(0)).toBe(20)
expect(calculateBoneArmorCapacity(-5)).toBe(20)
expect(calculateBoneArmorCapacity(Number.NaN)).toBe(20)
})
it('calculates exact synergy bonus: +15 per hard point in Bone Wall and Bone Prison', () => {
expect(calculateBoneArmorSynergyBonus({})).toBe(0)
expect(calculateBoneArmorSynergyBonus({ boneWall: 1 })).toBe(15)
expect(calculateBoneArmorSynergyBonus({ bonePrison: 1 })).toBe(15)
expect(calculateBoneArmorSynergyBonus({ boneWall: 20, bonePrison: 0 })).toBe(300)
expect(calculateBoneArmorSynergyBonus({ boneWall: 0, bonePrison: 20 })).toBe(300)
expect(calculateBoneArmorSynergyBonus({ boneWall: 20, bonePrison: 20 })).toBe(600)
// Total capacity at slvl 20 with 40 hard synergy points = 210 + 600 = 810 HP pool
const maxCap = calculateBoneArmorCapacity(20, { boneWall: 20, bonePrison: 20 })
expect(maxCap).toBe(810)
})
it('empirically verifies Bone Armor absorbs physical damage in StateBus', () => {
const stats = new UnitStatList()
const bus = new StateBus(stats)
// Apply Bone Armor with 210 capacity
bus.applyState({
stateNameOrId: 'bonearmor',
slvl: 20,
stats: { damagearmor: 210 },
})
expect(bus.hasState('bonearmor')).toBe(true)
// Hit 1: 100 Physical Damage
const outcome1 = bus.triggerReactiveEvents({
event: 'absorbdamage',
incomingPhys256: 100 * FIXED_ONE,
incomingElem256: 0,
})
expect(outcome1.absorbedPhys256).toBe(100 * FIXED_ONE)
expect(outcome1.absorbedElem256).toBe(0)
// Remaining shield pool should be 110
const entry1 = bus.getState('bonearmor')
expect(entry1).toBeDefined()
expect(entry1?.stats['damagearmor']).toBe(110)
// Hit 2: 150 Physical Damage (exceeds remaining 110 shield pool)
const outcome2 = bus.triggerReactiveEvents({
event: 'absorbdamage',
incomingPhys256: 150 * FIXED_ONE,
incomingElem256: 0,
})
expect(outcome2.absorbedPhys256).toBe(110 * FIXED_ONE)
// Shield should be completely depleted and state removed
expect(bus.hasState('bonearmor')).toBe(false)
})
it('empirically verifies Bone Armor does NOT absorb elemental, magic, or poison damage', () => {
const stats = new UnitStatList()
const bus = new StateBus(stats)
bus.applyState({
stateNameOrId: 'bonearmor',
slvl: 20,
stats: { damagearmor: 210 },
})
// Test A: Incoming Fire Damage (150 fire)
const fireOutcome = bus.triggerReactiveEvents({
event: 'absorbdamage',
incomingPhys256: 0,
incomingElem256: 150 * FIXED_ONE,
elemType: 'fire',
})
expect(fireOutcome.absorbedPhys256).toBe(0)
expect(fireOutcome.absorbedElem256).toBe(0)
// Shield pool remains completely intact at 210
let entry = bus.getState('bonearmor')
expect(entry?.stats['damagearmor']).toBe(210)
// Test B: Incoming Magic Damage (100 magic)
const magOutcome = bus.triggerReactiveEvents({
event: 'absorbdamage',
incomingPhys256: 0,
incomingElem256: 100 * FIXED_ONE,
elemType: 'mag',
})
expect(magOutcome.absorbedPhys256).toBe(0)
expect(magOutcome.absorbedElem256).toBe(0)
entry = bus.getState('bonearmor')
expect(entry?.stats['damagearmor']).toBe(210)
// Test C: Incoming Poison Damage (80 poison)
const poisOutcome = bus.triggerReactiveEvents({
event: 'absorbdamage',
incomingPhys256: 0,
incomingElem256: 80 * FIXED_ONE,
elemType: 'pois',
isPoison: true,
})
expect(poisOutcome.absorbedPhys256).toBe(0)
expect(poisOutcome.absorbedElem256).toBe(0)
entry = bus.getState('bonearmor')
expect(entry?.stats['damagearmor']).toBe(210)
// Test D: Hybrid Damage (60 physical + 120 cold)
const hybridOutcome = bus.triggerReactiveEvents({
event: 'absorbdamage',
incomingPhys256: 60 * FIXED_ONE,
incomingElem256: 120 * FIXED_ONE,
elemType: 'cold',
})
expect(hybridOutcome.absorbedPhys256).toBe(60 * FIXED_ONE)
expect(hybridOutcome.absorbedElem256).toBe(0) // Cold is NOT absorbed!
entry = bus.getState('bonearmor')
expect(entry?.stats['damagearmor']).toBe(150) // 210 - 60 = 150
})
})
// =========================================================================
// Challenge Dimension 3: Poison Dagger Weapon Restriction & Scaling Stress
// =========================================================================
describe('Dimension 3: Poison Dagger Weapon Restriction & Scaling Stress', () => {
it('strictly accepts daggers and rejects bare hands, swords, axes, bows, and others', () => {
// 1. Bare hands / Unarmed
expect(getAttackWeaponInfo(null).subtype).toBe('fist')
expect(getAttackWeaponInfo(undefined).subtype).toBe('fist')
expect(getAttackWeaponInfo({} as any).subtype).toBe('fist')
expect(getAttackWeaponInfo(null).subtype === 'dagger').toBe(false)
// 2. Swords (1H & 2H)
expect(getAttackWeaponInfo({ code: 'ssd', type: 'swor', name: 'Short Sword' }).subtype).toBe('sword')
expect(getAttackWeaponInfo({ code: 'bsd', type: 'swor', name: 'Broad Sword' }).subtype).toBe('sword')
expect(getAttackWeaponInfo({ code: 'gsd', type: 'swor', name: 'Great Sword' }).subtype).toBe('sword')
expect(getAttackWeaponInfo({ code: 'clm', type: 'swor', nameZh: '双手大剑' }).subtype).toBe('sword')
expect(getAttackWeaponInfo({ code: 'ssd', type: 'swor', name: 'Short Sword' }).subtype === 'dagger').toBe(false)
// 3. Axes
expect(getAttackWeaponInfo({ code: 'hax', type: 'axe', name: 'Hand Axe' }).subtype).toBe('axe')
expect(getAttackWeaponInfo({ code: '2ax', type: 'axe', name: 'Double Axe' }).subtype).toBe('axe')
expect(getAttackWeaponInfo({ code: 'hax', type: 'axe', nameZh: '手斧' }).subtype === 'dagger').toBe(false)
// 4. Bows & Crossbows
expect(getAttackWeaponInfo({ code: 'sbw', type: 'bow', name: 'Short Bow' }).subtype).toBe('bow')
expect(getAttackWeaponInfo({ code: 'lxb', type: 'xbow', name: 'Light Crossbow' }).subtype).toBe('crossbow')
expect(getAttackWeaponInfo({ code: 'sbw', type: 'bow', name: 'Short Bow' }).subtype === 'dagger').toBe(false)
// 5. Maces, Staves, Polearms, Spears, Wands
expect(getAttackWeaponInfo({ code: 'clb', type: 'club', name: 'Club' }).subtype).toBe('mace')
expect(getAttackWeaponInfo({ code: 'cst', type: 'staf', name: 'Short Staff' }).subtype).toBe('staff')
expect(getAttackWeaponInfo({ code: 'vou', type: 'pole', name: 'Voulge' }).subtype).toBe('polearm')
expect(getAttackWeaponInfo({ code: 'spr', type: 'spea', name: 'Spear' }).subtype).toBe('spear')
expect(getAttackWeaponInfo({ code: 'wnd', type: 'wand', name: 'Wand' }).subtype).toBe('fist')
// 6. Daggers (MUST be accepted)
const dagger1 = getAttackWeaponInfo({ code: 'dgr', type: 'knif', name: 'Dagger' })
expect(dagger1.subtype).toBe('dagger')
expect(dagger1.subtype === 'dagger').toBe(true)
const dirk = getAttackWeaponInfo({ code: 'dir', type: 'knif', name: 'Dirk' })
expect(dirk.subtype).toBe('dagger')
const kris = getAttackWeaponInfo({ code: 'kri', type: 'knif', name: 'Kris' })
expect(kris.subtype).toBe('dagger')
const poignard = getAttackWeaponInfo({ code: '9dg', type: 'knif', name: 'Poignard' })
expect(poignard.subtype).toBe('dagger')
const daggerZh = getAttackWeaponInfo({ code: 'dgr', nameZh: '匕首' })
expect(daggerZh.subtype).toBe('dagger')
const dirkZh = getAttackWeaponInfo({ code: 'dir', nameZh: '短刀' })
expect(dirkZh.subtype).toBe('dagger')
})
it('exposes weapon classification defect: 1.13c dagger "Blade" (code bld, type knif) misclassified as sword', () => {
// 1.13c ground truth: code 'bld' (Blade) has type 'knif' in Weapons.txt.
// However, getAttackWeaponInfo matches /blade/i under the sword branch first,
// misclassifying this authentic 1.13c dagger as 'sword' and blocking Poison Dagger casting!
const blade = getAttackWeaponInfo({ code: 'bld', type: 'knif', name: 'Blade' })
expect(blade.subtype).toBe('dagger')
})
it('evaluates attack rating bonus progression (+30% base, +20%/lvl)', () => {
expect(calculatePoisonDaggerAttackRatingBonus(1)).toBe(30)
expect(calculatePoisonDaggerAttackRatingBonus(2)).toBe(50)
expect(calculatePoisonDaggerAttackRatingBonus(10)).toBe(210)
expect(calculatePoisonDaggerAttackRatingBonus(20)).toBe(410)
expect(calculatePoisonDaggerAttackRatingBonus(30)).toBe(610)
expect(calculatePoisonDaggerAttackRatingBonus(99)).toBe(1990)
expect(calculatePoisonDaggerAttackRatingBonus(0)).toBe(30)
expect(calculatePoisonDaggerAttackRatingBonus(Number.NaN)).toBe(30)
})
it('evaluates duration, bitrates, and damage scaling under extreme synergies', () => {
// Duration scales with slvl: 50 + (slvl - 1) * 10
const pd1 = calculatePoisonDaggerDamage(1)
expect(pd1.durationFrames).toBe(50)
expect(pd1.durationSeconds).toBe(2.0)
expect(pd1.minRate).toBe(36)
expect(pd1.maxRate).toBe(80)
const pd20 = calculatePoisonDaggerDamage(20)
expect(pd20.durationFrames).toBe(240)
expect(pd20.durationSeconds).toBe(9.6)
expect(pd20.minRate).toBe(576)
expect(pd20.maxRate).toBe(620)
// Synergy: 20 pts Poison Explosion + 20 pts Poison Nova = 40 pts * 20% = +800% -> 9.0x multiplier
const synMax = calculatePoisonDaggerSynergyMultiplier({ poisonExplosion: 20, poisonNova: 20 })
expect(synMax).toBe(9.0)
const pd20Syn = calculatePoisonDaggerDamage(20, { poisonExplosion: 20, poisonNova: 20 })
expect(pd20Syn.durationFrames).toBe(240) // Duration does NOT scale with synergy
expect(pd20Syn.minRate).toBe(576 * 9)
expect(pd20Syn.maxRate).toBe(620 * 9)
expect(pd20Syn.minDamage).toBe(Math.floor((576 * 9 * 240) / 256)) // 4860
expect(pd20Syn.maxDamage).toBe(Math.floor((620 * 9 * 240) / 256)) // 5231
})
})
// =========================================================================
// Challenge Dimension 4: Poison Nova Fixed 50 Frames (2.0s) Duration Stress
// =========================================================================
describe('Dimension 4: Poison Nova Fixed 50 Frames (2.0s) Duration Invariant', () => {
it('strictly maintains 50 frames (2.0s) duration across all skill levels from 1 to 99', () => {
const testLevels = [1, 2, 5, 10, 15, 20, 25, 30, 50, 99]
for (const lvl of testLevels) {
const spec = calculatePoisonNovaDamage(lvl)
expect(spec.durationFrames).toBe(50)
expect(spec.durationSeconds).toBe(2.0)
}
})
it('strictly maintains 50 frames duration even when synergies are applied at maximum', () => {
const maxSynergies = { poisonDagger: 20, poisonExplosion: 20 }
const syn = calculatePoisonNovaSynergyMultiplier(maxSynergies)
expect(syn).toBe(5.0) // 1.0 + 40 * 0.10 = 5.0
const spec = calculatePoisonNovaDamage(20, maxSynergies)
expect(spec.durationFrames).toBe(50) // Fixed!
expect(spec.durationSeconds).toBe(2.0)
expect(spec.minRate).toBe(2048 * 5)
expect(spec.maxRate).toBe(2256 * 5)
expect(spec.minDamage).toBe(Math.floor((2048 * 5 * 50) / 256)) // 2000
expect(spec.maxDamage).toBe(Math.floor((2256 * 5 * 50) / 256)) // 2203
})
it('verifies spawnPoisonNovaRing generates exactly 64 bolts with 50 frames duration', () => {
const ring = spawnPoisonNovaRing(0, 0, 100)
expect(ring.length).toBe(64)
for (const bolt of ring) {
expect(bolt.missileType).toBe('poisonnova')
expect(bolt.statusEffect).toBe('poison')
expect(bolt.statusDuration).toBe(50) // 50 frames duration on each missile
}
// Check angular coverage (360 degrees, 5.625 deg per bolt)
const angles = ring.map(b => Math.atan2(b.vy / ISO_GROUND_ASPECT_RATIO, b.vx))
// Verify first bolt is along X axis (angle ≈ 0)
expect(ring[0]!.vx).toBeCloseTo(12, 1)
expect(ring[0]!.vy).toBeCloseTo(0, 1)
// Verify quarter bolt (index 16) is along +Y axis (angle ≈ PI/2)
expect(ring[16]!.vx).toBeCloseTo(0, 1)
expect(ring[16]!.vy).toBeCloseTo(12 * ISO_GROUND_ASPECT_RATIO, 1) // 6
// Verify half bolt (index 32) is along -X axis (angle ≈ PI)
expect(ring[32]!.vx).toBeCloseTo(-12, 1)
expect(ring[32]!.vy).toBeCloseTo(0, 1)
// Verify three-quarter bolt (index 48) is along -Y axis (angle ≈ -PI/2)
expect(ring[48]!.vx).toBeCloseTo(0, 1)
expect(ring[48]!.vy).toBeCloseTo(-12 * ISO_GROUND_ASPECT_RATIO, 1) // -6
})
})
// =========================================================================
// Challenge Dimension 5: Cross-Skill Synergies & Hard-Point Invariants
// =========================================================================
describe('Dimension 5: Cross-Skill Synergies & Hard-Point Isolation', () => {
it('verifies Bone Spear receives +7% synergy from Teeth, Bone Wall, Prison, Spirit', () => {
const syn = calculateBoneSpearSynergyMultiplier({
teeth: 20,
boneWall: 20,
bonePrison: 20,
boneSpirit: 20,
})
// 80 hard points * 7% = +560% -> 6.6x multiplier
expect(syn).toBe(1.0 + 80 * 0.07)
const d20 = calculateBoneSpearDamage(20, { teeth: 20, boneWall: 20, bonePrison: 20, boneSpirit: 20 })
expect(d20.min).toBe(Math.floor(192 * 6.6))
expect(d20.max).toBe(Math.floor(204 * 6.6))
})
it('verifies Bone Spirit receives +6% synergy from Teeth, Bone Wall, Spear, Prison', () => {
const syn = calculateBoneSpiritSynergyMultiplier({
teeth: 20,
boneWall: 20,
boneSpear: 20,
bonePrison: 20,
})
// 80 hard points * 6% = +480% -> 5.8x multiplier
expect(syn).toBe(1.0 + 80 * 0.06)
const d20 = calculateBoneSpiritDamage(20, { teeth: 20, boneWall: 20, boneSpear: 20, bonePrison: 20 })
expect(d20.min).toBe(Math.floor(340 * 5.8))
expect(d20.max).toBe(Math.floor(369 * 5.8))
})
it('verifies Corpse Explosion scales unscaled base HP (50% phys / 50% fire) and radius', () => {
const ce100 = calculateCorpseExplosionDamage(5000, 100) // 100% roll of 5000 HP monster
expect(ce100.phys).toBe(2500)
expect(ce100.fire).toBe(2500)
expect(ce100.minTotal).toBe(3500) // 70% of 5000
expect(ce100.maxTotal).toBe(6000) // 120% of 5000
expect(ce100.minPhys).toBe(1750)
expect(ce100.maxPhys).toBe(3000)
expect(ce100.minFire).toBe(1750)
expect(ce100.maxFire).toBe(3000)
// Radius verification
expect(calculateCorpseExplosionRadiusYards(1)).toBe(2.67)
expect(calculateCorpseExplosionRadiusYards(10)).toBe(5.67)
expect(calculateCorpseExplosionRadiusYards(20)).toBe(9.0)
})
it('verifies Bone Wall and Bone Prison fixed 24.0s duration and segment counts', () => {
const wall = calculateBoneWallStats(20)
expect(wall.durationSeconds).toBe(24.0)
expect(wall.durationFrames).toBe(600)
expect(wall.segmentCount).toBe(5)
const prison = calculateBonePrisonStats(20)
expect(prison.durationSeconds).toBe(24.0)
expect(prison.durationFrames).toBe(600)
expect(prison.segmentCount).toBe(16)
})
it('verifies Poison Explosion duration and +15% synergy scaling', () => {
const pe1 = calculatePoisonExplosionDamage(1)
expect(pe1.durationFrames).toBe(50)
expect(pe1.durationSeconds).toBe(2.0)
const pe20 = calculatePoisonExplosionDamage(20)
expect(pe20.durationFrames).toBe(240)
expect(pe20.durationSeconds).toBe(9.6)
// Synergies: +15% per point in Poison Dagger and Poison Nova
const syn = calculatePoisonExplosionSynergyMultiplier({ poisonDagger: 20, poisonNova: 20 })
expect(syn).toBe(1.0 + 40 * 0.15) // 7.0x
const pe20Syn = calculatePoisonExplosionDamage(20, { poisonDagger: 20, poisonNova: 20 })
expect(pe20Syn.minRate).toBe(1248 * 7)
expect(pe20Syn.maxRate).toBe(1504 * 7)
})
it('verifies BATCH1_SKILLS length remains strictly 38 throughout all PnB wiring', () => {
expect(Object.keys(BATCH1_SKILLS).length).toBe(38)
})
})
})