OrbitControls & Resize

buttons

HTML

<div id="info">My Second Three.js
  <br/> turning, buttons, orbitControls, resize
  <br/>
  <p id='thetaPrint'>
  </p>
  <button id="toggle" style="width:20%">Toggle Turn</button>
</div>
<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>
<script src="https://jyunming-chen.github.io/tutsplus/js/KeyboardState.js"></script>

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 car;
var keyboard = new KeyboardState();
var theta = 0.3;
var thetaP;
var C, RC;

init();
animate();

$("#toggle").click(function() {
  turn = !turn;
});

function init() {
  scene = new THREE.Scene();
  renderer = new THREE.CanvasRenderer();
  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.z = 500;
  controls = new THREE.OrbitControls(camera, renderer.domElement);

  var geometry = new THREE.BoxGeometry(40, 16, 20);
  var material = new THREE.MeshBasicMaterial({
    wireframe: true
  });
	
  thetaP = window.document.getElementById('thetaPrint');
  var mesh = new THREE.Mesh(geometry, material);
  car = new THREE.Object3D();
  car.add (mesh);
  mesh.position.y = 8;
  scene.add(car);

  var gridXZ = new THREE.GridHelper(500, 10);
  gridXZ.setColors(new THREE.Color(0xff0000), new THREE.Color(0xffffff));
  scene.add(gridXZ);

  window.addEventListener('resize', onWindowResize, false);///////////
  ////////////////////
  RCmesh = new THREE.Mesh (new THREE.SphereGeometry(5,6,6), new THREE.MeshBasicMaterial());
  scene.add (RCmesh);
	C = new THREE.Vector3();  
}

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

function animate() {
	keyboard.update();
  if (keyboard.pressed ("left"))
  	theta += 0.01;
  else if (keyboard.pressed("right"))
  	theta -= 0.01;
	thetaP.innerHTML = theta.toFixed (3);
  
  RC = car.localToWorld (new THREE.Vector3(-12,0,24/Math.tan(theta)));
  RCmesh.position.copy (RC);
  
  var v = 15;
  var omega = v * Math.tan(theta)/24;
  var deltaT = 0.05;
  var vv = C.clone().sub(RC).applyAxisAngle (new THREE.Vector3(0,1,0), omega*deltaT);
  C = vv.add(RC);
 ...