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/**
 * @author Eberhard Graether / http://egraether.com/
 * @author Mark Lundin 	/ http://mark-lundin.com
 * @author Simone Manini / http://daron1337.github.io
 * @author Luca Antiga 	/ http://lantiga.github.io
 */

THREE.TrackballControls = function ( object, domElement ) {

var _this = this;
	var STATE = { NONE: -1, ROTATE: 0, ZOOM: 1, PAN: 2, TOUCH_ROTATE: 3, TOUCH_ZOOM_PAN: 4 };

this.object = object;
	this.domElement = ( domElement !== undefined ) ? domElement : document;

// API

this.enabled = true;

this.screen = { left: 0, top: 0, width: 0, height: 0 };

this.rotateSpeed = 1.0;
	this.zoomSpeed = 1.2;
	this.panSpeed = 0.3;

this.noRotate = false;
	this.noZoom = false;
	this.noPan = false;

this.staticMoving = false;
	this.dynamicDampingFactor = 0.2;

this.minDistance = 0;
	this.maxDistance = Infinity;

this.keys = [ 65 /*A*/, 83 /*S*/, 68 /*D*/ ];

// internals

this.target = new THREE.Vector3();

var EPS = 0.000001;

var lastPosition = new THREE.Vector3();

var _state = STATE.NONE,
	_prevState = STATE.NONE,

_eye = new THREE.Vector3(),

_movePrev = new THREE.Vector2(),
	_moveCurr = new THREE.Vector2(),

_lastAxis = new THREE.Vector3(),
	_lastAngle = 0,

_zoomStart = new THREE.Vector2(),
	_zoomEnd = new THREE.Vector2(),

_touchZoomDistanceStart = 0,
	_touchZoomDistanceEnd = 0,

_panStart = new THREE.Vector2(),
	_panEnd = new THREE.Vector2();

// for reset

this.target0 = this.target.clone();
	this.position0 = this.object.position.clone();
	this.up0 = this.object.up.clone();

// events

var changeEvent = { type: 'change' };
	var startEvent = { type: 'start' };
	var endEvent = { type: 'end' };

// methods

this.handleResize = function () {

if ( this.domElement === document ) {

this.screen.left = 0;
			this.screen.top = 0;
			this.screen.width = window.innerWidth;
			this.screen.height = window.innerHeight;

} else {

var box = this.domElement.getBoundingClientRect();
			// adjustments come from similar code in the jquery offset() function
			var d = this.domElement.ownerDocument.documentElement;
			this.screen.left = box.left + window.pageXOffset - d.clientLeft;
			this.screen.top = box.top + window.pageYOffset - d.clientTop;
			this.screen.width = box.width;
			this.screen.height = box.height;

}

};

this.handleEvent = function ( event ) {

if ( typeof this[ event.type ] == 'function' ) {

this[ event.type ]( event );

}

};

var getMouseOnScreen = ( function () {

var vector = new THREE.Vector2();

return function ( pageX, pageY ) {

vector.set(
				( pageX - _this.screen.left ) / _this.screen.width,
				( pageY - _this.screen.top ) / _this.screen.height
			);

return vector;

};

}() );

var getMouseOnCircle = ( function () {

var vector = new THREE.Vector2();

return function ( pageX, pageY ) {

vector.set(
				( ( pageX - _this.screen.width * 0.5 - _this.screen.left ) / ( _this.screen.width * 0.5 ) ),
				( ( _this.screen.height + 2 * ( _this.screen.top - pageY ) ) / _this.screen.width ) // screen.width intentional
			);

return vector;
		};

}() );

this.rotateCamera = (function() {

var axis = new THREE.Vector3(),
			quaternion = new THREE.Quaternion(),
			eyeDirection = new THREE.Vector3(),
			objectUpDirection = new THREE.Vector3(),
			objectSidewaysDirection = new THREE.Vector3(),
			moveDirection = new THREE.Vector3(),
			angle;

return function () {

moveDirection.set( _moveCurr.x - _movePrev.x, _moveCurr.y - _movePrev.y, 0 );
			angle = moveDirection.length();

if ( angle ) {

_eye.copy( _this.object.position ).sub( _this.target );

eyeDirection.copy( _eye ).normalize();
				objectUpDirection.copy( _this.object.up ).normalize();
				objectSidewaysDirection.crossVectors( objectUpDirection, eyeDirection ).normalize();

objectUpDirection.setLength( _moveCurr.y - _movePrev.y );
				objectSidewaysDirection.setLength( _moveCurr.x - _movePrev.x );

moveDirection.copy( objectUpDirection.add( objectSidewaysDirection ) );

axis.crossVectors( moveDirection, _eye ).normalize();

angle *= _this.rotateSpeed;
				quaternion.setFromAxisAngle( axis, angle );

_eye.applyQuaternion( quaternion );
				_this.object.up.applyQuaternion( quaternion );

_lastAxis.copy( axis );
				_lastAngle = angle;

}

else if ( !_this.staticMoving && _lastAngle ) {

_lastAngle *= Math.sqrt( 1.0 - _this.dynamicDampingFactor );
				_eye.copy( _this.object.position ).sub( _this.target );
				quaternion.setFromAxisAngle( _lastAxis, _lastAngle );
				_eye.applyQuaternion( quaternion );
				_this.object.up.applyQuaternion( quaternion );

}

_movePrev.copy( _moveCurr );

};

}());

this.zoomCamera = function () {

var factor;

if ( _state === STATE.TOUCH_ZOOM_PAN ) {

factor = _touchZoomDistanceStart / _touchZoomDistanceEnd;
			_touchZoomDistanceStart = _touchZoomDistanceEnd;
			_eye.multiplyScalar( factor );

} else {

factor = 1.0 + ( _zoomEnd.y - _zoomStart.y ) * _this.zoomSpeed;

if ( factor !== 1.0 && factor > 0.0 ) {

_eye.multiplyScalar( factor );

if ( _this.staticMoving ) {

_zoomStart.copy( _zoomEnd );

} else {

_zoomStart.y += ( _zoomEnd.y - _zoomStart.y ) * this.dynamicDampingFactor;

}

};

this.panCamera = (function() {

var mouseChange = new THREE.Vector2(),
			objectUp = new THREE.Vector3(),
			pan = new THREE.Vector3();

return function () {

mouseChange.copy( _panEnd ).sub( _panStart );

if ( mouseChange.lengthSq() ) {

mouseChange.multiplyScalar( _eye.length() * _this.panSpeed );

pan.copy( _eye ).cross( _this.object.up ).setLength( mouseChange.x );
				pan.add( objectUp.copy( _this.object.up ).setLength( mouseChange.y ) );

_this.object.position.add( pan );
				_this.target.add( pan );

if ( _this.staticMoving ) {

_panStart.copy( _panEnd );

} else {

_panStart.add( mouseChange.subVectors( _panEnd, _panStart ).multiplyScalar( _this.dynamicDampingFactor ) );

}

}
		};

}());

this.checkDistances = function () {

if ( !_this.noZoom || !_this.noPan ) {

if ( _eye.lengthSq() > _this.maxDistance * _this.maxDistance ) {

_this.object.position.addVectors( _this.target, _eye.setLength( _this.maxDistance ) );

}

if ( _eye.lengthSq() < _this.minDistance * _this.minDistance ) {

_this.object.position.addVectors( _this.target, _eye.setLength( _this.minDistance ) );

}

};

this.update = function () {

_eye.subVectors( _this.object.position, _this.target );

if ( !_this.noRotate ) {

_this.rotateCamera();

}

if ( !_this.noZoom ) {

_this.zoomCamera();

}

if ( !_this.noPan ) {

_this.panCamera();

}

_this.object.position.addVectors( _this.target, _eye );

_this.checkDistances();

_this.object.lookAt( _this.target );

if ( lastPosition.distanceToSquared( _this.object.position ) > EPS ) {

_this.dispatchEvent( changeEvent );

lastPosition.copy( _this.object.position );

}

};

this.reset = function () {

_state = STATE.NONE;
		_prevState = STATE.NONE;

_this.target.copy( _this.target0 );
		_this.object.position.copy( _this.position0 );
		_this.object.up.copy( _this.up0 );

_eye.subVectors( _this.object.position, _this.target );

_this.object.lookAt( _this.target );

_this.dispatchEvent( changeEvent );

lastPosition.copy( _this.object.position );

};

// listeners

function keydown( event ) {

if ( _this.enabled === false ) return;

window.removeEventListener( 'keydown', keydown );

_prevState = _state;

if ( _state !== STATE.NONE ) {

return;

} else if ( event.keyCode === _this.keys[ STATE.ROTATE ] && !_this.noRotate ) {

_state = STATE.ROTATE;

} else if ( event.keyCode === _this.keys[ STATE.ZOOM ] && !_this.noZoom ) {

_state = STATE.ZOOM;

} else if ( event.keyCode === _this.keys[ STATE.PAN ] && !_this.noPan ) {

_state = STATE.PAN;

}

function keyup( event ) {

if ( _this.enabled === false ) return;

_state = _prevState;

window.addEventListener( 'keydown', keydown, false );

}

function mousedown( event ) {

if ( _this.enabled === false ) return;

event.preventDefault();
		event.stopPropagation();

if ( _state === STATE.NONE ) {

_state = event.button;

}

if ( _state === STATE.ROTATE && !_this.noRotate ) {

_moveCurr.copy( getMouseOnCircle( event.pageX, event.pageY ) );
			_movePrev.copy(_moveCurr);

} else if ( _state === STATE.ZOOM && !_this.noZoom ) {

_zoomStart.copy( getMouseOnScreen( event.pageX, event.pageY ) );
			_zoomEnd.copy(_zoomStart);

} else if ( _state === STATE.PAN && !_this.noPan ) {

_panStart.copy( getMouseOnScreen( event.pageX, event.pageY ) );
			_panEnd.copy(_panStart);

}

document.addEventListener( 'mousemove', mousemove, false );
		document.addEventListener( 'mouseup', mouseup, false );

_this.dispatchEvent( startEvent );

}

function mousemove( event ) {

if ( _this.enabled === false ) return;

event.preventDefault();
		event.stopPropagation();

if ( _state === STATE.ROTATE && !_this.noRotate ) {

_movePrev.copy(_moveCurr);
			_moveCurr.copy( getMouseOnCircle( event.pageX, event.pageY ) );

} else if ( _state === STATE.ZOOM && !_this.noZoom ) {

_zoomEnd.copy( getMouseOnScreen( event.pageX, event.pageY ) );

} else if ( _state === STATE.PAN && !_this.noPan ) {

_panEnd.copy( getMouseOnScreen( event.pageX, event.pageY ) );

}

function mouseup( event ) {

if ( _this.enabled === false ) return;

event.preventDefault();
		event.stopPropagation();

_state = STATE.NONE;

document.removeEventListener( 'mousemove', mousemove );
		document.removeEventListener( 'mouseup', mouseup );
		_this.dispatchEvent( endEvent );

}

function mousewheel( event ) {

if ( _this.enabled === false ) return;

event.preventDefault();
		event.stopPropagation();

var delta = 0;

if ( event.wheelDelta ) { // WebKit / Opera / Explorer 9

delta = event.wheelDelta / 40;

} else if ( event.detail ) { // Firefox

delta = - event.detail / 3;

}

_zoomStart.y += delta * 0.01;
		_this.dispatchEvent( startEvent );
		_this.dispatchEvent( endEvent );

}

function touchstart( event ) {

if ( _this.enabled === false ) return;

switch ( event.touches.length ) {

case 1:
				_state = STATE.TOUCH_ROTATE;
				_moveCurr.copy( getMouseOnCircle( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ) );
				_movePrev.copy(_moveCurr);
				break;

case 2:
				_state = STATE.TOUCH_ZOOM_PAN;
				var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX;
				var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY;
				_touchZoomDistanceEnd = _touchZoomDistanceStart = Math.sqrt( dx * dx + dy * dy );

var x = ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX ) / 2;
				var y = ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY ) / 2;
				_panStart.copy( getMouseOnScreen( x, y ) );
				_panEnd.copy( _panStart );
				break;

default:
				_state = STATE.NONE;

}
		_this.dispatchEvent( startEvent );

}

function touchmove( event ) {

if ( _this.enabled === false ) return;

event.preventDefault();
		event.stopPropagation();

switch ( event.touches.length ) {

case 1:
				_movePrev.copy(_moveCurr);
				_moveCurr.copy( getMouseOnCircle(  event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ) );
				break;

case 2:
				var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX;
				var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY;
				_touchZoomDistanceEnd = Math.sqrt( dx * dx + dy * dy );

var x = ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX ) / 2;
				var y = ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY ) / 2;
				_panEnd.copy( getMouseOnScreen( x, y ) );
				break;

default:
				_state = STATE.NONE;

}

function touchend( event ) {

if ( _this.enabled === false ) return;

switch ( event.touches.length ) {

case 1:
				_movePrev.copy(_moveCurr);
				_moveCurr.copy( getMouseOnCircle(  event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ) );
				break;

case 2:
				_touchZoomDistanceStart = _touchZoomDistanceEnd = 0;

var x = ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX ) / 2;
				var y = ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY ) / 2;
				_panEnd.copy( getMouseOnScreen( x, y ) );
				_panStart.copy( _panEnd );
				break;

}

_state = STATE.NONE;
		_this.dispatchEvent( endEvent );

}

this.domElement.addEventListener( 'contextmenu', function ( event ) { event.preventDefault(); }, false );

this.domElement.addEventListener( 'mousedown', mousedown, false );

this.domElement.addEventListener( 'mousewheel', mousewheel, false );
	this.domElement.addEventListener( 'DOMMouseScroll', mousewheel, false ); // firefox

this.domElement.addEventListener( 'touchstart', touchstart, false );
	this.domElement.addEventListener( 'touchend', touchend, false );
	this.domElement.addEventListener( 'touchmove', touchmove, false );

window.addEventListener( 'keydown', keydown, false );
	window.addEventListener( 'keyup', keyup, false );

this.handleResize();

// force an update at start
	this.update();

};

THREE.TrackballControls.prototype = Object.create( THREE.EventDispatcher.prototype );
THREE.TrackballControls.prototype.constructor = THREE.TrackballControls;

(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
var Get = require('./get');
var get = new Get();
var debounce = require('./debounce');
var Camera = require('./camera');
var PointLight = require('./pointLight');
var HemiLight = require('./hemiLight');
var Mesh = require('./mesh');

var bodyWidth = document.body.clientWidth;
var bodyHeight = document.body.clientHeight;
var fps = 60;
var frameTime;
var lastTimeRender = +new Date();

var canvas;
var renderer;
var scene;
var camera;
var light;
var globe;
var ball;

var init = function() {
  var ballGeometry = new THREE.SphereGeometry(360, 20, 20);
  var ballMaterial = new THREE.MeshLambertMaterial({
    color: 0xffffff,
    shading: THREE.FlatShading
  });

initThree();
  
  camera = new Camera();
  camera.init(get.radian(45), get.radian(0), bodyWidth, bodyHeight);
  
  light = new HemiLight();
  light.init(scene, get.radian(0), get.radian(120), 1000, 0x66ff99, 0x3366aa, 1);
  
  ball = new Mesh();
  ball.init(scene, ballGeometry, ballMaterial);
  
  renderloop();
  debounce(window, 'resize', function(event){
    resizeRenderer();
  });
};

var render = function() {
  renderer.clear();
  
  ball.updateVertices();
  
  renderer.render(scene, camera.obj);
};

var renderloop = function() {
  var now = +new Date();
  requestAnimationFrame(renderloop);

if (now - lastTimeRender > 1000 / fps) {
    render();
    lastTimeRender = +new Date();
  }
  camera.trackball.update();
};

var resizeRenderer = function() {
  bodyWidth  = document.body.clientWidth;
  bodyHeight = document.body.clientHeight;
  renderer.setSize(bodyWidth, bodyHeight);
  camera.init(get.radian(45), get.radian(0), bodyWidth, bodyHeight);
};

init();

},{"./camera":2,"./debounce":3,"./get":4,"./hemiLight":5,"./mesh":6,"./pointLight":7}],2:[function(require,module,exports){
var Get = require('./get');
var get = new Get();

module.exports = exports();

},{"./get":4}],3:[function(require,module,exports){
module.exports = function(object, eventType, callback){
  var timer;

object.addEventListener(eventType, function(event) {
    clearTimeout(timer);
    timer = setTimeout(function(){
      callback(event);
    }, 500);
  }, false);
};

},{}],4:[function(require,module,exports){
var exports = function(){
  var Get = function() {};
  
  Get.prototype.randomInt = function(min, max){
    return Math.floor(Math.random() * (max - min)) + min;
  };
  
  Get.prototype.degree = function(radian) {
    return radian / Math.PI * 180;
  };
  
  Get.prototype.radian = function(degrees) {
    return degrees * Math.PI / 180;
  };
  
  Get.prototype.pointSphere = function(rad1, rad2, r) {
    var x = Math.cos(rad1) * Math.cos(rad2) * r;
    var z = Math.cos(rad1) * Math.sin(rad2) * r;
    var y = Math.sin(rad1) * r;
    return [x, y, z];
  };
  
  return Get;
};

module.exports = exports();

},{}],5:[function(require,module,exports){
var Get = require('./get');
var get = new Get();

module.exports = exports();

},{"./get":4}],6:[function(require,module,exports){
var Get = require('./get');
var get = new Get();

var exports = function() {
  var Mesh = function() {
    this.r = 0;
    this.x = 0;
    this.y = 0;
    this.z = 0;
    this.geometry;
    this.material;
    this.mesh;
    this.vertexArr = [];
    this.vertexDeg = [];
    this.vertexWaveCoe = 0;
  };

Mesh.prototype.init = function(scene, geometry, material) {
    this.geometry = geometry;
    this.material = material;
    this.mesh = new THREE.Mesh(this.geometry, this.material);
    this.r = this.geometry.parameters.radius;
    this.vertexWaveCoe = this.r / 30;

this.geometry.mergeVertices();
    this.updateVerticesInt();
    this.setPosition();
    this.mesh.rotation.set(get.radian(45), 0,0);
    
    scene.add(this.mesh);
  };

Mesh.prototype.setPosition = function() {
    this.mesh.position.set(this.x, this.y, this.z);
  };
  
  Mesh.prototype.updateVerticesInt = function() {
    var vertices = this.mesh.geometry.vertices;
    for (var i = 0; i < vertices.length; i++) {
      var r = this.r;
      this.vertexArr[i] = r;
      this.vertexDeg[i] = get.randomInt(0, 360);
      vertices[i].normalize().multiplyScalar(r);
    }
    this.mesh.geometry.computeVertexNormals();
    this.mesh.geometry.computeFaceNormals();
    this.mesh.geometry.verticesNeedUpdate = true;
    this.mesh.geometry.elementsNeedUpdate = true;
    this.mesh.geometry.normalsNeedUpdate = true;
  };
  
  Mesh.prototype.updateVertices = function() {
    var vertices = this.mesh.geometry.vertices;
    for (var i = 0; i < this.vertexArr.length; i++) {
      var r;
      this.vertexDeg[i] += 8;
      r = this.vertexArr[i] + Math.sin(get.radian(this.vertexDeg[i])) * this.vertexWaveCoe;
      vertices[i].normalize().multiplyScalar(r);
    }
    this.mesh.geometry.computeVertexNormals();
    this.mesh.geometry.computeFaceNormals();
    this.mesh.geometry.verticesNeedUpdate = true;
    this.mesh.geometry.elementsNeedUpdate = true;
    this.mesh.geometry.normalsNeedUpdate = true;
  };
  
  return Mesh;
};

module.exports = exports();

},{"./get":4}],7:[function(require,module,exports){
var Get = require('./get');
var get = new Get();

module.exports = exports();

},{"./get":4}]},{},[1]);

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