72 lines
2.4 KiB
TypeScript
72 lines
2.4 KiB
TypeScript
/**
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* Lockstep determinism check: two engines receiving the same actions at the
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* same ticks must produce identical game state (the foundation of multiplayer
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* without state sync).
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*/
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import { GameEngine } from '../src/game/engine.ts'
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const e1 = new GameEngine()
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const e2 = new GameEngine()
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for (const e of [e1, e2]) {
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e.startGame('normal')
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e.mpGameActive = true
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e.mpMode = 'coop'
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e.coopHpMul = 1.7
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}
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// scripted action stream (tick, action) – like the relayed server order
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const script: [number, Parameters<GameEngine['applyAction']>[0]][] = [
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[5, { type: 'build', kind: 'arrow', tx: 8, ty: 5 }],
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[5, { type: 'build', kind: 'frost', tx: 3, ty: 0 }],
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[10, { type: 'wave' }],
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[200, { type: 'build', kind: 'cannon', tx: 7, ty: 0 }],
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[400, { type: 'upgrade', towerId: 1 }],
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[400, { type: 'build', kind: 'tesla', tx: 12, ty: 6 }],
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[700, { type: 'wave' }],
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[900, { type: 'obstacle', tx: 19, ty: 0 }],
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[1200, { type: 'build', kind: 'laser', tx: 18, ty: 4 }],
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[1500, { type: 'speed', s: 2 }],
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[1800, { type: 'wave' }],
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]
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let idx = 0
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const TOTAL_TICKS = 3600 // ~2 Minuten Spielzeit @30 Ticks/s
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let p0: ReturnType<GameEngine['applyAction']> = true
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let p1 = p0
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for (let tick = 1; tick <= TOTAL_TICKS; tick++) {
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while (idx < script.length && script[idx][0] <= tick) {
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const a = script[idx][1]
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p0 = e1.applyAction(a, idx % 2) // alternate acting players
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p1 = e2.applyAction(a, idx % 2)
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idx++
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}
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e1.update(1 / 30)
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e2.update(1 / 30)
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}
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function state(e: GameEngine): string {
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return JSON.stringify({
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money: Math.floor(e.money * 1000),
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lives: e.lives,
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score: e.score,
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kills: e.kills,
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wave: e.waveNo,
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phase: e.phase,
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enemies: e.enemies.map((x) => [x.id, Math.round(x.hp * 1000), x.wp]),
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towers: e.towers.map((t) => [t.id, t.kind, t.level, t.kills, Math.round(t.damageDealt)]),
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queue: e.spawnQueue.map((s) => [Math.round(s.t * 1000), s.kind]),
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blocked: e.blockedCells.size,
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})
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}
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const s1 = state(e1)
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const s2 = state(e2)
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console.log('Aktionen ausgeführt:', idx, '| identisch:', p0 === p1)
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console.log('Zustand identisch:', s1 === s2)
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if (s1 !== s2) {
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console.log('e1:', s1.slice(0, 400))
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console.log('e2:', s2.slice(0, 400))
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process.exit(1)
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}
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console.log(`OK: beide Engines identisch nach ${TOTAL_TICKS} Ticks | Welle ${e1.waveNo} | ❤ ${e1.lives} | 🪙 ${Math.floor(e1.money)} | Türme ${e1.towers.length}`)
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