CG_HW1

by ikatyang

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r70/three.min.js"></script>
<script src="https://dl.dropboxusercontent.com/u/3587259/Code/Threejs/OrbitControls.js"></script>
<script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
<div id="info">CG_HW1
  <br/>
  <button style="width:20%">Toggle Turn</button>
  <select>
    <option value="analog">Analog</option>
    <option value="quartz">Quartz</option>
    <option value="sector">Sector</option>
  </select>
</div>

CSS

#info {
  position: absolute;
  top: 2%;
  width: 100%;
  padding: 10px;
  text-align: center;
  color: #ffff00
}

body {
  overflow: hidden;
}

JavaScript

var scene, renderer, camera;
var controls;
var angle = 0;
  
var size = 80;
var clock, pointer, hours, mode;
var ticker = new THREE.Clock(false);

init();
animate();

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

  camera = new THREE.PerspectiveCamera(50, window.innerWidth / window.innerHeight, 1, 1000);
  camera.position.y = 500;
  controls = new THREE.OrbitControls(camera, renderer.domElement);
  
  clock = new THREE.Object3D();
  scene.add(clock);
  
  var clockOut = new THREE.Mesh(
  	new THREE.CylinderGeometry(size * 1.3, size * 1.3, 9.7, 32), 
    new THREE.MeshBasicMaterial({ color: 'black' }));
  clock.add(clockOut);
  
  var clockIn = new THREE.Mesh(
  	new THREE.CylinderGeometry(size * 1.1, size * 1.1, 9.8, 32), 
    new THREE.MeshBasicMaterial({ color: 'white' }));
  clock.add(clockIn);
  
  hours = new THREE.Object3D();
  scene.add(hours);
  
  for (var i = 0; i < 12; i++) {
  	var hour = new THREE.Mesh(
      new THREE.BoxGeometry(10, 9.9, size * 0.4), 
      new THREE.MeshBasicMaterial({ color: 'black' }));
    var radian = hour.rotation.y = 2 * Math.PI / 12 * i;
    hour.position.set(
    	Math.sin(radian) * size * 1.2,
      0,
    	Math.cos(radian) * size * 1.2
    );
    hours.add(hour);
  }
  
  var gridXZ = new THREE.GridHelper(100, 10);
  gridXZ.setColors(new THREE.Color(0xff0000), new THREE.Color(0xffffff));
  scene.add(gridXZ);

  window.addEventListener('resize', onWindowResize, false);
  
  $('button').click(function () {
    if (ticker.running) {
    	ticker.stop();	
    } else {
    	ticker.start();	
    }
  });
  $('select').change(function () {
    if (pointer) {
      scene.remove(pointer);
      pointer = null;
    }
    window[this.value]();
    mode = this.value;
  }).change();
}

function onWindowResize() {
  camera.aspect = window.innerWidth /...