49 lines
2.4 KiB
TypeScript
49 lines
2.4 KiB
TypeScript
import { describe, it, expect } from 'vitest'
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import { createNetSimulation } from '../src/scene/net-scene.ts'
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import { createWorld, addPlayer } from '../src/game/combat.ts'
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import { LockstepSession } from '../src/net/lockstep.ts'
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describe('net-scene lockstep integration', () => {
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it('detects inventory desyncs when one peer picks up an item', () => {
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// Setup identical honest and tampered simulations
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const worldA = createWorld(0, 0)
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addPlayer(worldA, 10, 0)
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// Create worldB identical to worldA
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const worldB = createWorld(0, 0)
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addPlayer(worldB, 10, 0)
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const options = {
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playerSpeed: 100, playerReach: 20, playerCooldownTicks: 10,
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playerDamage: 10, playerManaPerAttack: 0, respawnTicks: 10,
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}
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const terrain = { overlap: () => 0 }
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const simA = createNetSimulation(worldA, options, terrain, [0, 100], 2)
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const simB = createNetSimulation(worldB, options, terrain, [0, 100], 2)
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// BOTH have an item at the same coordinate.
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// However, A has Gold, B has a Potion.
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simA.ground.push({ x: 0, y: 0, item: { name: 'Gold', stack: 100, value: 100, base: {} as unknown as import('../src/game/items.ts').ItemBase, prefix: null, suffix: null, level: 1, invWidth: 1, invHeight: 1, stats: {} } })
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simB.ground.push({ x: 0, y: 0, item: { name: 'Potion', stack: 1, value: 5, base: {} as unknown as import('../src/game/items.ts').ItemBase, prefix: null, suffix: null, level: 1, invWidth: 1, invHeight: 1, stats: {} } })
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const sessionA = new LockstepSession({ peers: 2, inputDelayTicks: 0 }, simA.simulation)
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const sessionB = new LockstepSession({ peers: 2, inputDelayTicks: 0 }, simB.simulation)
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// Tick 0: BOTH pick up!
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// At the end of the tick, both grounds are empty. But inventories differ.
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sessionA.submit(0, { tick: 0, movement: {x:0, y:0}, attack: false, pickup: true, talk: false, skill: 0 })
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sessionA.submit(1, { tick: 0, movement: {x:0, y:0}, attack: false, pickup: false, talk: false, skill: 0 })
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sessionB.submit(0, { tick: 0, movement: {x:0, y:0}, attack: false, pickup: true, talk: false, skill: 0 })
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sessionB.submit(1, { tick: 0, movement: {x:0, y:0}, attack: false, pickup: false, talk: false, skill: 0 })
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const outA = sessionA.step()
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const outB = sessionB.step()
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expect(outA.kind).toBe('stepped')
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expect(outB.kind).toBe('stepped')
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if (outA.kind === 'stepped' && outB.kind === 'stepped') { expect(outA.hash).not.toBe(outB.hash) }
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})
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})
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