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186 | import * as THREE from 'three'
import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls'
import Stats from 'three/examples/jsm/libs/stats.module'
import { GUI } from 'dat.gui'
import { OBJLoader } from 'three/examples/jsm/loaders/OBJLoader'
import * as CANNON from 'cannon-es'
import CannonUtils from './utils/cannonUtils'
import CannonDebugRenderer from './utils/cannonDebugRenderer'
import { ConvexGeometry } from 'three/examples/jsm/geometries/ConvexGeometry'
const scene = new THREE.Scene()
scene.add(new THREE.AxesHelper(5))
var light1 = new THREE.SpotLight(0xffffff, 100)
light1.position.set(2.5, 5, 5)
light1.angle = Math.PI / 4
light1.penumbra = 0.5
light1.castShadow = true
light1.shadow.mapSize.width = 1024
light1.shadow.mapSize.height = 1024
light1.shadow.camera.near = 0.5
light1.shadow.camera.far = 20
scene.add(light1)
var light2 = new THREE.SpotLight(0xffffff, 100)
light2.position.set(-2.5, 5, 5)
light2.angle = Math.PI / 4
light2.penumbra = 0.5
light2.castShadow = true
light2.shadow.mapSize.width = 1024
light2.shadow.mapSize.height = 1024
light2.shadow.camera.near = 0.5
light2.shadow.camera.far = 20
scene.add(light2)
const camera = new THREE.PerspectiveCamera(
75,
window.innerWidth / window.innerHeight,
0.1,
1000
)
camera.position.set(0, 4, 4)
const renderer = new THREE.WebGLRenderer()
renderer.setSize(window.innerWidth, window.innerHeight)
renderer.shadowMap.enabled = true
renderer.shadowMap.type = THREE.PCFSoftShadowMap
document.body.appendChild(renderer.domElement)
const controls = new OrbitControls(camera, renderer.domElement)
controls.screenSpacePanning = true
controls.target.y = 2
const world = new CANNON.World()
world.gravity.set(0, -9.82, 0)
const normalMaterial = new THREE.MeshNormalMaterial()
const phongMaterial = new THREE.MeshPhongMaterial()
let monkeyMeshes: THREE.Object3D[] = []
let monkeyBodies: CANNON.Body[] = []
let monkeyLoaded = false
const objLoader = new OBJLoader()
objLoader.load(
'models/monkey.obj',
(object) => {
const monkeyMesh = object.children[0] as THREE.Mesh
monkeyMesh.material = normalMaterial
// const positions = monkeyMesh.geometry.attributes.position.array
// const points: THREE.Vector3[] = []
// for (let i = 0; i < positions.length; i += 3) {
// points.push(new THREE.Vector3(positions[i], positions[i + 1], positions[i + 2]))
// }
// const convexHull = new ConvexGeometry(points)
for (let i = 0; i < 10; i++) {
const monkeyMeshClone = monkeyMesh.clone()
monkeyMeshClone.position.x = Math.floor(Math.random() * 10) - 5
monkeyMeshClone.position.z = Math.floor(Math.random() * 10) - 5
monkeyMeshClone.position.y = 5 + i
scene.add(monkeyMeshClone)
monkeyMeshes.push(monkeyMeshClone)
const monkeyShape = CannonUtils.CreateTrimesh(
(monkeyMesh as THREE.Mesh).geometry
)
// const monkeyShape = CannonUtils.CreateConvexPolyhedron(new THREE.IcosahedronGeometry(1))
// const monkeyShape = CannonUtils.CreateConvexPolyhedron((monkeyMesh as THREE.Mesh).geometry)
// const monkeyShape = CannonUtils.CreateConvexPolyhedron(convexHull)
const monkeyBody = new CANNON.Body({ mass: 1 })
monkeyBody.addShape(monkeyShape)
// monkeyBody.addShape(new CANNON.Sphere(1))// head,
// monkeyBody.addShape(new CANNON.Sphere(.8), new CANNON.Vec3(0, .2, 0))// head,
// monkeyBody.addShape(new CANNON.Sphere(.05), new CANNON.Vec3(0, -.97, 0.46))// chin,
// monkeyBody.addShape(new CANNON.Sphere(.05), new CANNON.Vec3(-1.36, .29, -0.5)) //left ear
// monkeyBody.addShape(new CANNON.Sphere(.05), new CANNON.Vec3(1.36, .29, -0.5)) //right ear
monkeyBody.position.x = monkeyMeshClone.position.x
monkeyBody.position.y = monkeyMeshClone.position.y
monkeyBody.position.z = monkeyMeshClone.position.z
world.addBody(monkeyBody)
monkeyBodies.push(monkeyBody)
}
monkeyLoaded = true
},
(xhr) => {
console.log((xhr.loaded / xhr.total) * 100 + '% loaded')
},
(error) => {
console.log('An error happened')
}
)
const planeGeometry = new THREE.PlaneGeometry(25, 25)
const planeMesh = new THREE.Mesh(planeGeometry, phongMaterial)
planeMesh.rotateX(-Math.PI / 2)
planeMesh.receiveShadow = true
scene.add(planeMesh)
const planeShape = new CANNON.Plane()
const planeBody = new CANNON.Body({ mass: 0 })
planeBody.addShape(planeShape)
planeBody.quaternion.setFromAxisAngle(new CANNON.Vec3(1, 0, 0), -Math.PI / 2)
world.addBody(planeBody)
window.addEventListener('resize', onWindowResize, false)
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight
camera.updateProjectionMatrix()
renderer.setSize(window.innerWidth, window.innerHeight)
render()
}
const stats = new Stats()
document.body.appendChild(stats.dom)
const gui = new GUI()
const physicsFolder = gui.addFolder('Physics')
physicsFolder.add(world.gravity, 'x', -10.0, 10.0, 0.1)
physicsFolder.add(world.gravity, 'y', -10.0, 10.0, 0.1)
physicsFolder.add(world.gravity, 'z', -10.0, 10.0, 0.1)
physicsFolder.open()
const clock = new THREE.Clock()
let delta
const cannonDebugRenderer = new CannonDebugRenderer(scene, world)
function animate() {
requestAnimationFrame(animate)
controls.update()
delta = Math.min(clock.getDelta(), 0.1)
world.step(delta)
cannonDebugRenderer.update()
// Copy coordinates from Cannon to Three.js
if (monkeyLoaded) {
monkeyMeshes.forEach((m, i) => {
m.position.set(
monkeyBodies[i].position.x,
monkeyBodies[i].position.y,
monkeyBodies[i].position.z
)
m.quaternion.set(
monkeyBodies[i].quaternion.x,
monkeyBodies[i].quaternion.y,
monkeyBodies[i].quaternion.z,
monkeyBodies[i].quaternion.w
)
})
}
render()
stats.update()
}
function render() {
renderer.render(scene, camera)
}
animate()
|
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