codelab_three.js/step3.html at master · albertoruibal/codelab_three.js · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
	<title>Three.js codelab step 3</title>
	<meta charset="utf-8">
	<meta name="viewport"
		content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
	<style type="text/css">
		body {
			margin: 0px;
			overflow: hidden;
		}
	</style>
</head>
<body>
	<script src="js/three.min.js"></script>
	<script src="js/ColladaLoader.js"></script>

	<script>
		var camera, scene, renderer;
		var geometry, material, mesh;

		var car, skin;

		var loader = new THREE.ColladaLoader();
		loader.options.convertUpAxis = true;
		loader.load('./car.dae', function(collada) {

			car = collada.scene;
			skin = collada.skins[0];

			car.scale.x = car.scale.y = car.scale.z = 1;
			car.updateMatrix();

			init();
			animate();
		});

		function init() {
			camera = new THREE.PerspectiveCamera(45, window.innerWidth
					/ window.innerHeight, 1, 100000);
			camera.position.y = 5000;
			camera.position.z = -5000;
			camera.lookAt(new THREE.Vector3(0, 0, 0));

			scene = new THREE.Scene();

			geometry = new THREE.PlaneGeometry(50000, 50000, 100, 100);
			material = new THREE.MeshBasicMaterial({
				color : 0xcccccc,
				wireframe : true});
			mesh = new THREE.Mesh(geometry, material);
			mesh.rotation.x = Math.PI / 2;
			scene.add(mesh);

			scene.add(car);

			pointLight = new THREE.PointLight(0xffffff);
			pointLight.position = new THREE.Vector3(0, 10000, 0);
			scene.add(pointLight);

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

			document.body.appendChild(renderer.domElement);
		}

		function animate() {
			requestAnimationFrame(animate);

			if (keyDown[38]) {
				if (speed < 100) speed += 0.5;
			} else {
				speed -= 1;
				if (speed < 0) speed = 0;
			}
			if (speed > 0) {
				if (keyDown[37]) car.rotation.y += 0.02;
				if (keyDown[39]) car.rotation.y -= 0.02;
			}

			car.position.x += speed * Math.sin(car.rotation.y);
			car.position.z += speed * Math.cos(car.rotation.y);

			camera.lookAt(car.position);

			renderer.render(scene, camera);
		}

		speed = 0;
		keyDown = new Array();
		for (i = 0; i < 300; i++) {
			keyDown[i] = false;
		}

		document.onkeydown = function(event) {
			keyDown[event.keyCode] = true;
		}

		document.onkeyup = function(event) {
			keyDown[event.keyCode] = false;
		}
	</script>
</body>
</html>