three.js/xiaoche5.html at master · hanweizhe/three.js · GitHub

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<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="UTF-8">
		<meta name="author" content="" />
		<meta name="description" content="" />
		<meta name="viewport" content="width=device-width,initial-scsale=1,maximum-scale=1" />
		<title>小车</title>
		<style>
			body,html {
				padding: 0;
				margin: 0;
				border: 0;
			}
		</style>
	</head>
	<body>
		<canvas id="canvas">您的设备不支持canvas</canvas>
		<script src="js/three.js" type="text/javascript"></script>
		<!--<script src="js/lib.js" type="text/javascript"></script>-->
		<script src="js/stats.min.js" type="text/javascript"></script>
		<script src="js/TrackballControls.js" type="text/javascript"></script>
		<script type="text/javascript">
			var camera;
			var scene;
			var renderer;
			var controls;
			var canvas;
			var cube={};
			var floor={};
			var torusArr=[];
			var car={};
			var stats;
			function initThree(){
				canvas = document.getElementById('canvas');
				canvas.width=window.innerWidth;
				canvas.height=window.innerHeight;
				scene = new THREE.Scene();
				renderer = new THREE.WebGLRenderer({
					canvas:canvas
				});
				renderer.setClearColor(0x404040);
				renderer.shadowMap.enabled=true;
				renderer.shadowMap.type=THREE.PCFSoftShadowMap;
			}

			function initCamera(){
				camera=new THREE.PerspectiveCamera(45,window.innerWidth/window.innerHeight,1,100);
				camera.position.set(0,7,10);
				camera.lookAt(new THREE.Vector3(0,0,0));
				scene.add(camera);
			}

			function initLight(){
				var ambienLight = new THREE.AmbientLight(0xaaaaaa);
				scene.add(ambienLight);

				var light= new THREE.PointLight(0xffffff);
				light.position.set(-10,10,7);
				light.castShadow=true;
				scene.add(light);

			}

			function initControl(){
				controls= new THREE.TrackballControls(camera,renderer.domElement);
				controls.rotateSpeed=1.0;
				controls.zoomSpeed=1.2;
				controls.panSpeed=0.8;
				controls.noZoom=false;
				controls.noPan=false;
				controls.minDistance=30;
				controls.maxDistance=100;
				controls.staticMoving=true;
				controls.dynamicDampingFactor=0.3;
				controls.keys=[65,83,68];
				controls.addEventListener('change',render);
			}

			function animate(){
				controls.update();
				requestAnimationFrame(animate);
			}
			function initFloor(){
				var texture = new THREE.TextureLoader().load('img/floor.jpg',function(texture){
					renderer.render(scene,camera);
				});
				var material = new THREE.MeshLambertMaterial({
					map:texture,
					side:THREE.DoubleSide
				});
				floor = new THREE.Mesh(new THREE.PlaneGeometry(16,16,1,1),material);
				floor.rotation.set(Math.PI/2,0,0);
				floor.position.set(-1,-0.2,-1);
				floor.receiveShadow=true;
				scene.add(floor);

			}
			function initCube(){
				var materials=[];
				for(var i=1;i<=6;i++){
					materials.push(new THREE.MeshLambertMaterial({
						map:new THREE.TextureLoader().load('img/0'+i+'.png',function(){
							renderer.render(scene,camera);
						}),
						overdraw:true
					}));
				}
				cube = new THREE.Mesh(new THREE.CubeGeometry(3,1,1),new THREE.MultiMaterial(materials));
				cube.position.set(0,.45,0);
				cube.castShadow=true;
				scene.add(cube);
			}

			var dir=[
			   [.85,.5],
			   [.85,-.5],
			   [-.65,.5],
			   [-.65,-.5]
			]
			function initTorus(){
				var texture = new THREE.TextureLoader().load('img/wood.jpg',function(){
					renderer.render(scene,camera);
				});
				texture.wrapS = texture.wrapT = THREE.RepeatWrapping;
				texture.repeat.set(1,1);
				for(var i=0;i<dir.length;i++){
					var torus = new THREE.Mesh(new THREE.TorusGeometry(.14,.06,20,30),new THREE.MeshLambertMaterial({
						map:texture,
						color:0x555555
					}));
					torus.castShadow=true;
					torus.receiveShadow=true;
					torus.position.set(dir[i][0],0,dir[i][1]);
					torusArr.push(torus);
					scene.add(torus);
				}
			}

			function initCar(){
				car = new THREE.Object3D();
				car.add(cube);
				for(var i=0;i<dir.length;i++){
					car.add(torusArr[i]);
				}
				scene.add(car);
			}
			var turning =false
			function move(moveOn){
				if(turning){
					turning=false;
					for(var i=0;i<=1;i++){
						torusArr[i].rotation.y=0;
					}
				}else{
					var carDirection = car.getWorldDirection();
					carDirection.applyAxisAngle((new THREE.Vector3(0,1,0)).normalize(),Math.PI/2);
					var theta = Math.atan2(carDirection.x,carDirection.z);
					car.position.x+=.1*moveOn*Math.sin(theta);
					car.position.z+=.1*moveOn*Math.cos(theta);
				}
				render();
			}

			function turn(turnleft){
				if(!turning){
					turning=true;
				}else{
					car.rotation.y +=.1*turnleft;
				}
				for(var i=0;i<=1;i++){
					torusArr[i].rotation.y=.5*turnleft;
				}
				render();
			}
			function initMove(){
				window.onkeydown=function(e){
					switch(e.keyCode){
						case 37:
						case 65:
							turn(1);
							break;
						case 38:
						case 87:
							move(1);
							break;
						case 39:
						case 68:
							turn(-1);
							break;
						case 40:
						case 83:
							move(-1);
							break;
					}
				};
			}
			function render(){
				renderer.render(scene,camera);
				stats.update();
			}
			function init(){
				initThree();
				initCamera();
				initLight();
				initFloor();
				initCube();
				initTorus();
				initCar();
				stats = new Stats();
				document.body.appendChild(stats.domElement);
//				drawAxes(scene);
				initControl();
				animate();
				render();
				initMove();
			}
			init();
		</script>
	</body>
</html>