javascript
/
three.js
зеркало из https://github.com/tazdij/three.js.git


			
				
					
						
						
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182
							<!doctype html>
<html lang="en">
	<head>
		<title>three.js webgl - collision detection</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<style>
			body {
				font-family: Monospace;
				background-color: #f0f0f0;
				margin: 0px;
				overflow: hidden;
			}

			#oldie {
				background-color: #ddd !important
			}

			#info {
				position: absolute;
				top: 30px;
				left: 10px;
				width: 800px;
				color: #000000;
				padding: 5px;
				font-family: Monospace;
				font-size: 13px;
				text-align: left;
				z-index: 100;
			}

			#options {
				position: absolute;
				top: 10px;
				left: 10px;
				width: 800px;
				color: #000000;
				padding: 5px;
				font-family: Monospace;
				font-size: 13px;
				text-align: left;
				z-index: 100;
			}
		</style>

		<script src="../build/Three.js"></script>
		<script src="js/RequestAnimationFrame.js"></script>

		<script>

			var camera, scene, renderer, info, mouse2d, sun, loader, sphere;

			var range = 400, speed = 1, sphereSize = 4;

			var cubes = [];

			function init() {

				container = document.createElement('div');
				document.body.appendChild(container);

				info = document.getElementById("info");

				camera = new THREE.Camera(40, window.innerWidth / window.innerHeight, 1, 10000);
				camera.position.y = 120;
				camera.position.x = 300;
				camera.position.z = 0;
				camera.useTarget = true;

				mouse2d = new THREE.Vector3( 0, 0, 1 );

				loader = new THREE.Loader( true );

				scene = new THREE.Scene();

				sphere = new THREE.Mesh( new THREE.SphereGeometry( sphereSize, 10, 10 ), new THREE.MeshLambertMaterial( { color: 0xff0000 } ) );
				scene.add( sphere );

				renderer = new THREE.WebGLRenderer();
				renderer.setSize(window.innerWidth, window.innerHeight);
				container.appendChild(renderer.domElement);

				var ambientLight = new THREE.AmbientLight(0xdddddd);
				scene.add(ambientLight);

				sun = new THREE.DirectionalLight(0xffffff);
				sun.position = new THREE.Vector3(1, -1, 1).normalize();
				scene.add(sun);

				createObstacles();

				container.onmousemove = onDocumentMouseMove;
				animate();

			}

			function createObstacles(){

				createCube(100, 50, 10, new THREE.Vector3(0, 0, 100));
				camera.target = createCube(100, 50, 10, new THREE.Vector3(0, 0, 200));
				createCube(100, 50, 10, new THREE.Vector3(0, 0, 300));

			}

			function createCube(sx, sy, sz, p) {

				var cube = new THREE.Mesh(new THREE.CubeGeometry( sx, sy, sz ), new THREE.MeshLambertMaterial( { color: 0x003300 } ) );
				cube.position = p;
				scene.add(cube);
				THREE.Collisions.colliders.push( THREE.CollisionUtils.MeshOBB(cube) );
				cubes.push(cube);
				return cube;

			}

			function onDocumentMouseMove(event){

				event.preventDefault();
				mouse2d.x = (event.clientX / window.innerWidth) * 2 - 1;
				mouse2d.y = -(event.clientY / window.innerHeight) * 2 + 1;
				mouse2d.z = 1;

			}

			function animate() {

				requestAnimationFrame(animate);

				sphere.position.z += speed;

				if(sphere.position.z > range) sphere.position.z = 0;

				for (var i = 0; i < cubes.length; i++) {
				
					cubes[i].materials[0].color = new THREE.Color(0x003300);
				
				}

				var ray = new THREE.Ray( sphere.position, new THREE.Vector3(0,0,1) );

				var c = THREE.Collisions.rayCastNearest(ray);
				
				if (c && c.distance == -1) {

					info.innerHTML = "Colliding!";
					c.mesh.materials[0].color = new THREE.Color(0xff0000);

				} else if(c && c.distance >= 0) {

					info.innerHTML = "Approaching @ " + c.distance;

				} else {

					info.innerHTML = "No collider in sight.";

				}

				camera.position.x = Math.cos(mouse2d.x * Math.PI) * 300;
				camera.position.z = 200 + Math.sin(mouse2d.x * Math.PI) * 300;

				renderer.render(scene, camera);

			}

			function vts(v){

				if (!v)
					return "undefined<br>";
				else
					return v.x + " , " + v.y + " , " + v.z + "<br>";

			}

		</script>
	</head>
	<body onload="init();">
		<div id="info">
		</div>
		<div id="options">
		</div>
	</body>
</html>