GP_HW0

by ikatyang

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r76/three.min.js"></script>
<script src="https://dl.dropboxusercontent.com/u/3587259/Code/Threejs/OrbitControls.js"></script>
<div class='top'>GP_HW0</div>

CSS

.top {
  position: absolute;
  top: 1em;
  left: 0;
  right: 0;
  text-align: center;
}
body {
  margin: 0;
  overflow: hidden;
}

JavaScript

var scene, camera, renderer;
var controls;
var thomas, bodyAngle = 0, wheelAngle = 0, radius = 100;

init();
animate();

function init() {
  scene = new THREE.Scene();

  camera = new THREE.PerspectiveCamera(50, window.innerWidth / window.innerHeight, 1, 1000);
  camera.position.set(0, 200, 200);

  renderer = new THREE.WebGLRenderer();
  renderer.setSize(window.innerWidth, window.innerHeight);
  renderer.setClearColor(0x888888);
  document.body.appendChild(renderer.domElement);

  controls = new THREE.OrbitControls(camera, renderer.domElement);

  var gridXZ = new THREE.GridHelper(100, 10);
  gridXZ.setColors(new THREE.Color(0xff0000), new THREE.Color(0xffffff));
  scene.add(gridXZ);
	
  thomas = createThomas();
  scene.add(thomas);
  
  var orbit = new THREE.Mesh(
  	new THREE.RingGeometry(radius - 4, radius + 4, 32),
    new THREE.MeshNormalMaterial());
  orbit.rotation.x = -Math.PI / 2;
  scene.add(orbit);
  
	window.addEventListener('resize', onWindowResize, false);
}

function onWindowResize() {
  camera.aspect = window.innerWidth / window.innerHeight;
  camera.updateProjectionMatrix();
  renderer.setSize(window.innerWidth, window.innerHeight);
}

function animate() {
	wheelAngle += 0.03;
	bodyAngle -= 0.01;
  thomas.rotation.y = Math.PI - bodyAngle;
	thomas.position.set(radius * Math.cos(bodyAngle), 0, radius * Math.sin(bodyAngle));
  thomas.wheel1.rotation.x = wheelAngle;
  thomas.wheel2.rotation.x = wheelAngle;
  thomas.wheel3.rotation.x = wheelAngle;
  thomas.wheekSticks.position.set(0, 2 * Math.cos(wheelAngle), 2 * Math.sin(wheelAngle));
  controls.update();
  requestAnimationFrame(animate);
  renderer.render(scene, camera);
}

function createThomas() {
	var thomas = new THREE.Object3D();
  
  var material = new THREE.MeshNormalMaterial({
  	side: THREE.DoubleSide,
    //wireframe: true,
  });
  
  var body = new THREE.Mesh(
  	new THREE.BoxGeometry(10, 10, 30),
    material);
  body.position.y = 11.5;
  thomas.add(body);
  
  var shoulder = new...