969f602dd4
Fixed-step world runtime, event bus wire protocol between lanes, integration seam (game.ts) with placeholder ball. Lanes A/B/C own disjoint dirs. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
57 lines
2.0 KiB
TypeScript
57 lines
2.0 KiB
TypeScript
/**
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* INTEGRATION SEAM — owned by integration, not by lanes.
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* Composes lane modules into the playable slice. While lanes are in flight this
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* boots a placeholder ball on a flat floor so `npm run dev` always shows life.
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*/
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import * as THREE from 'three'
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import type { World } from './contracts'
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export function installGame(world: World) {
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const { scene, physics, rapier } = world
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// floor
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const floor = new THREE.Mesh(
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new THREE.BoxGeometry(60, 1, 60),
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new THREE.MeshStandardMaterial({ color: '#e8d9b8' }))
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floor.position.y = -0.5
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floor.receiveShadow = true
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scene.add(floor)
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physics.createCollider(rapier.ColliderDesc.cuboid(30, 0.5, 30)
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.setTranslation(0, -0.5, 0))
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// placeholder blob-ball (replaced by lane A's createBlob at integration)
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const ball = new THREE.Mesh(
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new THREE.SphereGeometry(0.6, 32, 24),
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new THREE.MeshStandardMaterial({ color: '#F5F5F7', roughness: 0.35 }))
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ball.castShadow = true
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scene.add(ball)
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const body = physics.createRigidBody(
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rapier.RigidBodyDesc.dynamic().setTranslation(0, 3, 0))
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physics.createCollider(
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rapier.ColliderDesc.ball(0.6).setRestitution(0.4).setFriction(1.0), body)
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const keys = new Set<string>()
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addEventListener('keydown', (e) => keys.add(e.code))
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addEventListener('keyup', (e) => keys.delete(e.code))
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world.addSystem({
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update() {
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const f = 18
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const impulse = { x: 0, y: 0, z: 0 }
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if (keys.has('KeyW') || keys.has('ArrowUp')) impulse.z -= f
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if (keys.has('KeyS') || keys.has('ArrowDown')) impulse.z += f
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if (keys.has('KeyA') || keys.has('ArrowLeft')) impulse.x -= f
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if (keys.has('KeyD') || keys.has('ArrowRight')) impulse.x += f
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body.applyImpulse({ x: impulse.x / 60, y: 0, z: impulse.z / 60 }, true)
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const p = body.translation()
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ball.position.set(p.x, p.y, p.z)
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const q = body.rotation()
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ball.quaternion.set(q.x, q.y, q.z, q.w)
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},
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})
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world.onFrame(() => {
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world.camera.lookAt(ball.position)
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})
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}
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