mirror of
https://github.com/wahyd4/three.js.git
synced 2026-08-10 05:26:11 +10:00
168 lines
5.5 KiB
HTML
168 lines
5.5 KiB
HTML
<html>
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<head>
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<title>three.js webgl - collision detection</title>
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<meta http-equiv="content-type" content="text/html; charset=utf-8">
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<style type="text/css">
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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 type="text/javascript" src="../build/Three.js">
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</script>
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<script type="text/javascript" src="js/RequestAnimationFrame.js">
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</script>
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<script type="text/javascript">
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var scene, camera, renderer, info, mouse2d, sun, loader, sphere;
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var range = 400;
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var speed = 1;
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var 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.Camera(40, window.innerWidth / window.innerHeight, 1, 10000);
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camera.position.y = 120;
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camera.position.x = 300;
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camera.position.z = 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 Sphere(sphereSize, 10, 10), new THREE.MeshLambertMaterial({
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color: 0xff0000
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}));
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scene.addObject(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.addLight(ambientLight);
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sun = new THREE.DirectionalLight(0xffffff);
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sun.position = new THREE.Vector3(1, -1, 1).normalize();
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scene.addLight(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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camera.target = 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 Cube(sx, sy, sz, 1, 1, 1), new THREE.MeshLambertMaterial({
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color: 0x003300//, wireframe: true
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}));
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cube.position = p;
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scene.addObject(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 = new THREE.Color(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 = new THREE.Color(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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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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