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webxr_vr_ballshooter.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js vr - ball shooter</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
<link type="text/css" rel="stylesheet" href="main.css">
</head>
<body>
<div id="info">
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> vr - ball shooter
</div>
<!-- Import maps polyfill -->
<!-- Remove this when import maps will be widely supported -->
<script async src="https://unpkg.com/[email protected]/dist/es-module-shims.js"></script>
<script type="importmap">
{
"imports": {
"three": "../build/three.module.js",
"three/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import { BoxLineGeometry } from 'three/addons/geometries/BoxLineGeometry.js';
import { VRButton } from 'three/addons/webxr/VRButton.js';
import { XRControllerModelFactory } from 'three/addons/webxr/XRControllerModelFactory.js';
let camera, scene, renderer;
let controller1, controller2;
let controllerGrip1, controllerGrip2;
let room;
let count = 0;
const radius = 0.08;
let normal = new THREE.Vector3();
const relativeVelocity = new THREE.Vector3();
const clock = new THREE.Clock();
init();
animate();
function init() {
scene = new THREE.Scene();
scene.background = new THREE.Color( 0x505050 );
camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 0.1, 10 );
camera.position.set( 0, 1.6, 3 );
room = new THREE.LineSegments(
new BoxLineGeometry( 6, 6, 6, 10, 10, 10 ),
new THREE.LineBasicMaterial( { color: 0x808080 } )
);
room.geometry.translate( 0, 3, 0 );
scene.add( room );
scene.add( new THREE.HemisphereLight( 0x606060, 0x404040 ) );
const light = new THREE.DirectionalLight( 0xffffff );
light.position.set( 1, 1, 1 ).normalize();
scene.add( light );
const geometry = new THREE.IcosahedronGeometry( radius, 3 );
for ( let i = 0; i < 200; i ++ ) {
const object = new THREE.Mesh( geometry, new THREE.MeshLambertMaterial( { color: Math.random() * 0xffffff } ) );
object.position.x = Math.random() * 4 - 2;
object.position.y = Math.random() * 4;
object.position.z = Math.random() * 4 - 2;
object.userData.velocity = new THREE.Vector3();
object.userData.velocity.x = Math.random() * 0.01 - 0.005;
object.userData.velocity.y = Math.random() * 0.01 - 0.005;
object.userData.velocity.z = Math.random() * 0.01 - 0.005;
room.add( object );
}
//
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.outputEncoding = THREE.sRGBEncoding;
renderer.xr.enabled = true;
document.body.appendChild( renderer.domElement );
//
document.body.appendChild( VRButton.createButton( renderer ) );
// controllers
function onSelectStart() {
this.userData.isSelecting = true;
}
function onSelectEnd() {
this.userData.isSelecting = false;
}
controller1 = renderer.xr.getController( 0 );
controller1.addEventListener( 'selectstart', onSelectStart );
controller1.addEventListener( 'selectend', onSelectEnd );
controller1.addEventListener( 'connected', function ( event ) {
this.add( buildController( event.data ) );
} );
controller1.addEventListener( 'disconnected', function () {
this.remove( this.children[ 0 ] );
} );
scene.add( controller1 );
controller2 = renderer.xr.getController( 1 );
controller2.addEventListener( 'selectstart', onSelectStart );
controller2.addEventListener( 'selectend', onSelectEnd );
controller2.addEventListener( 'connected', function ( event ) {
this.add( buildController( event.data ) );
} );
controller2.addEventListener( 'disconnected', function () {
this.remove( this.children[ 0 ] );
} );
scene.add( controller2 );
// The XRControllerModelFactory will automatically fetch controller models
// that match what the user is holding as closely as possible. The models
// should be attached to the object returned from getControllerGrip in
// order to match the orientation of the held device.
const controllerModelFactory = new XRControllerModelFactory();
controllerGrip1 = renderer.xr.getControllerGrip( 0 );
controllerGrip1.add( controllerModelFactory.createControllerModel( controllerGrip1 ) );
scene.add( controllerGrip1 );
controllerGrip2 = renderer.xr.getControllerGrip( 1 );
controllerGrip2.add( controllerModelFactory.createControllerModel( controllerGrip2 ) );
scene.add( controllerGrip2 );
//
window.addEventListener( 'resize', onWindowResize );
}
function buildController( data ) {
let geometry, material;
switch ( data.targetRayMode ) {
case 'tracked-pointer':
geometry = new THREE.BufferGeometry();
geometry.setAttribute( 'position', new THREE.Float32BufferAttribute( [ 0, 0, 0, 0, 0, - 1 ], 3 ) );
geometry.setAttribute( 'color', new THREE.Float32BufferAttribute( [ 0.5, 0.5, 0.5, 0, 0, 0 ], 3 ) );
material = new THREE.LineBasicMaterial( { vertexColors: true, blending: THREE.AdditiveBlending } );
return new THREE.Line( geometry, material );
case 'gaze':
geometry = new THREE.RingGeometry( 0.02, 0.04, 32 ).translate( 0, 0, - 1 );
material = new THREE.MeshBasicMaterial( { opacity: 0.5, transparent: true } );
return new THREE.Mesh( geometry, material );
}
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function handleController( controller ) {
if ( controller.userData.isSelecting ) {
const object = room.children[ count ++ ];
object.position.copy( controller.position );
object.userData.velocity.x = ( Math.random() - 0.5 ) * 3;
object.userData.velocity.y = ( Math.random() - 0.5 ) * 3;
object.userData.velocity.z = ( Math.random() - 9 );
object.userData.velocity.applyQuaternion( controller.quaternion );
if ( count === room.children.length ) count = 0;
}
}
//
function animate() {
renderer.setAnimationLoop( render );
}
function render() {
handleController( controller1 );
handleController( controller2 );
//
const delta = clock.getDelta() * 0.8; // slow down simulation
const range = 3 - radius;
for ( let i = 0; i < room.children.length; i ++ ) {
const object = room.children[ i ];
object.position.x += object.userData.velocity.x * delta;
object.position.y += object.userData.velocity.y * delta;
object.position.z += object.userData.velocity.z * delta;
// keep objects inside room
if ( object.position.x < - range || object.position.x > range ) {
object.position.x = THREE.MathUtils.clamp( object.position.x, - range, range );
object.userData.velocity.x = - object.userData.velocity.x;
}
if ( object.position.y < radius || object.position.y > 6 ) {
object.position.y = Math.max( object.position.y, radius );
object.userData.velocity.x *= 0.98;
object.userData.velocity.y = - object.userData.velocity.y * 0.8;
object.userData.velocity.z *= 0.98;
}
if ( object.position.z < - range || object.position.z > range ) {
object.position.z = THREE.MathUtils.clamp( object.position.z, - range, range );
object.userData.velocity.z = - object.userData.velocity.z;
}
for ( let j = i + 1; j < room.children.length; j ++ ) {
const object2 = room.children[ j ];
normal.copy( object.position ).sub( object2.position );
const distance = normal.length();
if ( distance < 2 * radius ) {
normal.multiplyScalar( 0.5 * distance - radius );
object.position.sub( normal );
object2.position.add( normal );
normal.normalize();
relativeVelocity.copy( object.userData.velocity ).sub( object2.userData.velocity );
normal = normal.multiplyScalar( relativeVelocity.dot( normal ) );
object.userData.velocity.sub( normal );
object2.userData.velocity.add( normal );
}
}
object.userData.velocity.y -= 9.8 * delta;
}
renderer.render( scene, camera );
}
</script>
</body>
</html>