mirror of
https://github.com/wahyd4/three.js.git
synced 2026-08-09 04:56:01 +10:00
185 lines
4.0 KiB
HTML
185 lines
4.0 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<title>three.js webgl - collision detection</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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<style>
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body {
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font-family: Monospace;
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background-color: #f0f0f0;
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margin: 0px;
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overflow: hidden;
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}
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#oldie {
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background-color: #ddd !important
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}
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#info {
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position: absolute;
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top: 30px;
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left: 10px;
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width: 800px;
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color: #000000;
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padding: 5px;
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font-family: Monospace;
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font-size: 13px;
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text-align: left;
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z-index: 100;
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}
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#options {
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position: absolute;
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top: 10px;
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left: 10px;
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width: 800px;
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color: #000000;
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padding: 5px;
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font-family: Monospace;
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font-size: 13px;
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text-align: left;
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z-index: 100;
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}
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</style>
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<script src="../build/Three.js"></script>
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<script src="js/RequestAnimationFrame.js"></script>
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<script>
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var camera, cameraTarget, scene, renderer, info, mouse2d, sun, loader, sphere;
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var range = 400, speed = 1, sphereSize = 4;
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var cubes = [];
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function init() {
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container = document.createElement('div');
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document.body.appendChild(container);
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info = document.getElementById("info");
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camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 10000 );
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camera.position.set( 300, 120, 0 );
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mouse2d = new THREE.Vector3( 0, 0, 1 );
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loader = new THREE.Loader( true );
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scene = new THREE.Scene();
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sphere = new THREE.Mesh( new THREE.SphereGeometry( sphereSize, 10, 10 ), new THREE.MeshLambertMaterial( { color: 0xff0000 } ) );
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scene.add( sphere );
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renderer = new THREE.WebGLRenderer();
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renderer.setSize( window.innerWidth, window.innerHeight );
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container.appendChild( renderer.domElement );
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var ambientLight = new THREE.AmbientLight( 0xdddddd );
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scene.add( ambientLight );
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sun = new THREE.DirectionalLight( 0xffffff );
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sun.position.set( 1, -1, 1 ).normalize();
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scene.add( sun );
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createObstacles();
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container.onmousemove = onDocumentMouseMove;
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animate();
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}
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function createObstacles(){
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createCube( 100, 50, 10, new THREE.Vector3(0, 0, 100) );
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cameraTarget = createCube( 100, 50, 10, new THREE.Vector3( 0, 0, 200 )) ;
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createCube(100, 50, 10, new THREE.Vector3(0, 0, 300));
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}
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function createCube( sx, sy, sz, p ) {
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var cube = new THREE.Mesh( new THREE.CubeGeometry( sx, sy, sz ), new THREE.MeshLambertMaterial( { color: 0x003300 } ) );
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cube.position = p;
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scene.add( cube );
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THREE.Collisions.colliders.push( THREE.CollisionUtils.MeshOBB( cube ) );
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cubes.push( cube );
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return cube;
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}
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function onDocumentMouseMove( event ){
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event.preventDefault();
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mouse2d.x = (event.clientX / window.innerWidth) * 2 - 1;
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mouse2d.y = -(event.clientY / window.innerHeight) * 2 + 1;
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mouse2d.z = 1;
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}
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function animate() {
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requestAnimationFrame( animate );
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sphere.position.z += speed;
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if( sphere.position.z > range ) sphere.position.z = 0;
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for ( var i = 0; i < cubes.length; i++ ) {
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cubes[ i ].materials[ 0 ].color.setHex( 0x003300 );
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}
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var ray = new THREE.Ray( sphere.position, new THREE.Vector3( 0, 0, 1 ) );
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var c = THREE.Collisions.rayCastNearest( ray );
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if ( c && c.distance == -1 ) {
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info.innerHTML = "Colliding!";
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c.mesh.materials[ 0 ].color.setHex( 0xff0000 );
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} else if( c && c.distance >= 0 ) {
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info.innerHTML = "Approaching @ " + c.distance;
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} else {
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info.innerHTML = "No collider in sight.";
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}
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camera.position.x = Math.cos(mouse2d.x * Math.PI) * 300;
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camera.position.z = 200 + Math.sin(mouse2d.x * Math.PI) * 300;
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camera.lookAt( cameraTarget.position );
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renderer.render( scene, camera );
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}
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function vts(v){
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if (!v)
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return "undefined<br>";
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else
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return v.x + " , " + v.y + " , " + v.z + "<br>";
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}
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</script>
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</head>
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<body onload="init();">
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<div id="info">
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</div>
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<div id="options">
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</div>
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</body>
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</html>
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