text: /**
   * Tween.js - Licensed under the MIT license
   * https://github.com/tweenjs/tween.js
   * ----------------------------------------------
   *
   * See https://github.com/tweenjs/tween.js/graphs/contributors for the full list of contributors.
   * Thank you all, you're awesome!
   */
  
  var TWEEN = TWEEN || (function () {
  
  	var _tweens = [];
  
  	return {
  
  		getAll: function () {
  
  			return _tweens;
  
  		},
  
  		removeAll: function () {
  
  			_tweens = [];
  
  		},
  
  		add: function (tween) {
  
  			_tweens.push(tween);
  
  		},
  
  		remove: function (tween) {
  
  			var i = _tweens.indexOf(tween);
  
  			if (i !== -1) {
  				_tweens.splice(i, 1);
  			}
  
  		},
  
  		update: function (time, preserve) {
  
  			if (_tweens.length === 0) {
  				return false;
  			}
  
  			var i = 0;
  
  			time = time !== undefined ? time : TWEEN.now();
  
  			while (i < _tweens.length) {
  
  				if (_tweens[i].update(time) || preserve) {
  					i++;
  				} else {
  					_tweens.splice(i, 1);
  				}
  
  			}
  
  			return true;
  
  		}
  	};
  
  })();
  
  
  // Include a performance.now polyfill
  (function () {
  	// In node.js, use process.hrtime.
  	if (this.window === undefined && this.process !== undefined) {
  		TWEEN.now = function () {
  			var time = process.hrtime();
  
  			// Convert [seconds, microseconds] to milliseconds.
  			return time[0] * 1000 + time[1] / 1000;
  		};
  	}
  	// In a browser, use window.performance.now if it is available.
  	else if (this.window !== undefined &&
  	         window.performance !== undefined &&
  		 window.performance.now !== undefined) {
  
  		// This must be bound, because directly assigning this function
  		// leads to an invocation exception in Chrome.
  		TWEEN.now = window.performance.now.bind(window.performance);
  	}
  	// Use Date.now if it is available.
  	else if (Date.now !== undefined) {
  		TWEEN.now = Date.now;
  	}
  	// Otherwise, use 'new Date().getTime()'.
  	else {
  		TWEEN.now = function () {
  			return new Date().getTime();
  		};
  	}
  })();
  
  
  TWEEN.Tween = function (object) {
  
  	var _object = object;
  	var _valuesStart = {};
  	var _valuesEnd = {};
  	var _valuesStartRepeat = {};
  	var _duration = 1000;
  	var _repeat = 0;
  	var _yoyo = false;
  	var _isPlaying = false;
  	var _reversed = false;
  	var _delayTime = 0;
  	var _startTime = null;
  	var _easingFunction = TWEEN.Easing.Linear.None;
  	var _interpolationFunction = TWEEN.Interpolation.Linear;
  	var _chainedTweens = [];
  	var _onStartCallback = null;
  	var _onStartCallbackFired = false;
  	var _onUpdateCallback = null;
  	var _onCompleteCallback = null;
  	var _onStopCallback = null;
  
  	// Set all starting values present on the target object
  	for (var field in object) {
  		_valuesStart[field] = parseFloat(object[field], 10);
  	}
  
  	this.to = function (properties, duration) {
  
  		if (duration !== undefined) {
  			_duration = duration;
  		}
  
  		_valuesEnd = properties;
  
  		return this;
  
  	};
  
  	this.start = function (time) {
  
  		TWEEN.add(this);
  
  		_isPlaying = true;
  
  		_onStartCallbackFired = false;
  
  		_startTime = time !== undefined ? time : TWEEN.now();
  		_startTime += _delayTime;
  
  		for (var property in _valuesEnd) {
  
  			// Check if an Array was provided as property value
  			if (_valuesEnd[property] instanceof Array) {
  
  				if (_valuesEnd[property].length === 0) {
  					continue;
  				}
  
  				// Create a local copy of the Array with the start value at the front
  				_valuesEnd[property] = [_object[property]].concat(_valuesEnd[property]);
  
  			}
  
  			// If `to()` specifies a property that doesn't exist in the source object,
  			// we should not set that property in the object
  			if (_valuesStart[property] === undefined) {
  				continue;
  			}
  
  			_valuesStart[property] = _object[property];
  
  			if ((_valuesStart[property] instanceof Array) === false) {
  				_valuesStart[property] *= 1.0; // Ensures we're using numbers, not strings
  			}
  
  			_valuesStartRepeat[property] = _valuesStart[property] || 0;
  
  		}
  
  		return this;
  
  	};
  
  	this.stop = function () {
  
  		if (!_isPlaying) {
  			return this;
  		}
  
  		TWEEN.remove(this);
  		_isPlaying = false;
  
  		if (_onStopCallback !== null) {
  			_onStopCallback.call(_object);
  		}
  
  		this.stopChainedTweens();
  		return this;
  
  	};
  
  	this.stopChainedTweens = function () {
  
  		for (var i = 0, numChainedTweens = _chainedTweens.length; i < numChainedTweens; i++) {
  			_chainedTweens[i].stop();
  		}
  
  	};
  
  	this.delay = function (amount) {
  
  		_delayTime = amount;
  		return this;
  
  	};
  
  	this.repeat = function (times) {
  
  		_repeat = times;
  		return this;
  
  	};
  
  	this.yoyo = function (yoyo) {
  
  		_yoyo = yoyo;
  		return this;
  
  	};
  
  
  	this.easing = function (easing) {
  
  		_easingFunction = easing;
  		return this;
  
  	};
  
  	this.interpolation = function (interpolation) {
  
  		_interpolationFunction = interpolation;
  		return this;
  
  	};
  
  	this.chain = function () {
  
  		_chainedTweens = arguments;
  		return this;
  
  	};
  
  	this.onStart = function (callback) {
  
  		_onStartCallback = callback;
  		return this;
  
  	};
  
  	this.onUpdate = function (callback) {
  
  		_onUpdateCallback = callback;
  		return this;
  
  	};
  
  	this.onComplete = function (callback) {
  
  		_onCompleteCallback = callback;
  		return this;
  
  	};
  
  	this.onStop = function (callback) {
  
  		_onStopCallback = callback;
  		return this;
  
  	};
  
  	this.update = function (time) {
  
  		var property;
  		var elapsed;
  		var value;
  
  		if (time < _startTime) {
  			return true;
  		}
  
  		if (_onStartCallbackFired === false) {
  
  			if (_onStartCallback !== null) {
  				_onStartCallback.call(_object);
  			}
  
  			_onStartCallbackFired = true;
  
  		}
  
  		elapsed = (time - _startTime) / _duration;
  		elapsed = elapsed > 1 ? 1 : elapsed;
  
  		value = _easingFunction(elapsed);
  
  		for (property in _valuesEnd) {
  
  			// Don't update properties that do not exist in the source object
  			if (_valuesStart[property] === undefined) {
  				continue;
  			}
  
  			var start = _valuesStart[property] || 0;
  			var end = _valuesEnd[property];
  
  			if (end instanceof Array) {
  
  				_object[property] = _interpolationFunction(end, value);
  
  			} else {
  
  				// Parses relative end values with start as base (e.g.: +10, -3)
  				if (typeof (end) === 'string') {
  
  					if (end.charAt(0) === '+' || end.charAt(0) === '-') {
  						end = start + parseFloat(end, 10);
  					} else {
  						end = parseFloat(end, 10);
  					}
  				}
  
  				// Protect against non numeric properties.
  				if (typeof (end) === 'number') {
  					_object[property] = start + (end - start) * value;
  				}
  
  			}
  
  		}
  
  		if (_onUpdateCallback !== null) {
  			_onUpdateCallback.call(_object, value);
  		}
  
  		if (elapsed === 1) {
  
  			if (_repeat > 0) {
  
  				if (isFinite(_repeat)) {
  					_repeat--;
  				}
  
  				// Reassign starting values, restart by making startTime = now
  				for (property in _valuesStartRepeat) {
  
  					if (typeof (_valuesEnd[property]) === 'string') {
  						_valuesStartRepeat[property] = _valuesStartRepeat[property] + parseFloat(_valuesEnd[property], 10);
  					}
  
  					if (_yoyo) {
  						var tmp = _valuesStartRepeat[property];
  
  						_valuesStartRepeat[property] = _valuesEnd[property];
  						_valuesEnd[property] = tmp;
  					}
  
  					_valuesStart[property] = _valuesStartRepeat[property];
  
  				}
  
  				if (_yoyo) {
  					_reversed = !_reversed;
  				}
  
  				_startTime = time + _delayTime;
  
  				return true;
  
  			} else {
  
  				if (_onCompleteCallback !== null) {
  					_onCompleteCallback.call(_object);
  				}
  
  				for (var i = 0, numChainedTweens = _chainedTweens.length; i < numChainedTweens; i++) {
  					// Make the chained tweens start exactly at the time they should,
  					// even if the `update()` method was called way past the duration of the tween
  					_chainedTweens[i].start(_startTime + _duration);
  				}
  
  				return false;
  
  			}
  
  		}
  
  		return true;
  
  	};
  
  };
  
  
  TWEEN.Easing = {
  
  	Linear: {
  
  		None: function (k) {
  
  			return k;
  
  		}
  
  	},
  
  	Quadratic: {
  
  		In: function (k) {
  
  			return k * k;
  
  		},
  
  		Out: function (k) {
  
  			return k * (2 - k);
  
  		},
  
  		InOut: function (k) {
  
  			if ((k *= 2) < 1) {
  				return 0.5 * k * k;
  			}
  
  			return - 0.5 * (--k * (k - 2) - 1);
  
  		}
  
  	},
  
  	Cubic: {
  
  		In: function (k) {
  
  			return k * k * k;
  
  		},
  
  		Out: function (k) {
  
  			return --k * k * k + 1;
  
  		},
  
  		InOut: function (k) {
  
  			if ((k *= 2) < 1) {
  				return 0.5 * k * k * k;
  			}
  
  			return 0.5 * ((k -= 2) * k * k + 2);
  
  		}
  
  	},
  
  	Quartic: {
  
  		In: function (k) {
  
  			return k * k * k * k;
  
  		},
  
  		Out: function (k) {
  
  			return 1 - (--k * k * k * k);
  
  		},
  
  		InOut: function (k) {
  
  			if ((k *= 2) < 1) {
  				return 0.5 * k * k * k * k;
  			}
  
  			return - 0.5 * ((k -= 2) * k * k * k - 2);
  
  		}
  
  	},
  
  	Quintic: {
  
  		In: function (k) {
  
  			return k * k * k * k * k;
  
  		},
  
  		Out: function (k) {
  
  			return --k * k * k * k * k + 1;
  
  		},
  
  		InOut: function (k) {
  
  			if ((k *= 2) < 1) {
  				return 0.5 * k * k * k * k * k;
  			}
  
  			return 0.5 * ((k -= 2) * k * k * k * k + 2);
  
  		}
  
  	},
  
  	Sinusoidal: {
  
  		In: function (k) {
  
  			return 1 - Math.cos(k * Math.PI / 2);
  
  		},
  
  		Out: function (k) {
  
  			return Math.sin(k * Math.PI / 2);
  
  		},
  
  		InOut: function (k) {
  
  			return 0.5 * (1 - Math.cos(Math.PI * k));
  
  		}
  
  	},
  
  	Exponential: {
  
  		In: function (k) {
  
  			return k === 0 ? 0 : Math.pow(1024, k - 1);
  
  		},
  
  		Out: function (k) {
  
  			return k === 1 ? 1 : 1 - Math.pow(2, - 10 * k);
  
  		},
  
  		InOut: function (k) {
  
  			if (k === 0) {
  				return 0;
  			}
  
  			if (k === 1) {
  				return 1;
  			}
  
  			if ((k *= 2) < 1) {
  				return 0.5 * Math.pow(1024, k - 1);
  			}
  
  			return 0.5 * (- Math.pow(2, - 10 * (k - 1)) + 2);
  
  		}
  
  	},
  
  	Circular: {
  
  		In: function (k) {
  
  			return 1 - Math.sqrt(1 - k * k);
  
  		},
  
  		Out: function (k) {
  
  			return Math.sqrt(1 - (--k * k));
  
  		},
  
  		InOut: function (k) {
  
  			if ((k *= 2) < 1) {
  				return - 0.5 * (Math.sqrt(1 - k * k) - 1);
  			}
  
  			return 0.5 * (Math.sqrt(1 - (k -= 2) * k) + 1);
  
  		}
  
  	},
  
  	Elastic: {
  
  		In: function (k) {
  
  			if (k === 0) {
  				return 0;
  			}
  
  			if (k === 1) {
  				return 1;
  			}
  
  			return -Math.pow(2, 10 * (k - 1)) * Math.sin((k - 1.1) * 5 * Math.PI);
  
  		},
  
  		Out: function (k) {
  
  			if (k === 0) {
  				return 0;
  			}
  
  			if (k === 1) {
  				return 1;
  			}
  
  			return Math.pow(2, -10 * k) * Math.sin((k - 0.1) * 5 * Math.PI) + 1;
  
  		},
  
  		InOut: function (k) {
  
  			if (k === 0) {
  				return 0;
  			}
  
  			if (k === 1) {
  				return 1;
  			}
  
  			k *= 2;
  
  			if (k < 1) {
  				return -0.5 * Math.pow(2, 10 * (k - 1)) * Math.sin((k - 1.1) * 5 * Math.PI);
  			}
  
  			return 0.5 * Math.pow(2, -10 * (k - 1)) * Math.sin((k - 1.1) * 5 * Math.PI) + 1;
  
  		}
  
  	},
  
  	Back: {
  
  		In: function (k) {
  
  			var s = 1.70158;
  
  			return k * k * ((s + 1) * k - s);
  
  		},
  
  		Out: function (k) {
  
  			var s = 1.70158;
  
  			return --k * k * ((s + 1) * k + s) + 1;
  
  		},
  
  		InOut: function (k) {
  
  			var s = 1.70158 * 1.525;
  
  			if ((k *= 2) < 1) {
  				return 0.5 * (k * k * ((s + 1) * k - s));
  			}
  
  			return 0.5 * ((k -= 2) * k * ((s + 1) * k + s) + 2);
  
  		}
  
  	},
  
  	Bounce: {
  
  		In: function (k) {
  
  			return 1 - TWEEN.Easing.Bounce.Out(1 - k);
  
  		},
  
  		Out: function (k) {
  
  			if (k < (1 / 2.75)) {
  				return 7.5625 * k * k;
  			} else if (k < (2 / 2.75)) {
  				return 7.5625 * (k -= (1.5 / 2.75)) * k + 0.75;
  			} else if (k < (2.5 / 2.75)) {
  				return 7.5625 * (k -= (2.25 / 2.75)) * k + 0.9375;
  			} else {
  				return 7.5625 * (k -= (2.625 / 2.75)) * k + 0.984375;
  			}
  
  		},
  
  		InOut: function (k) {
  
  			if (k < 0.5) {
  				return TWEEN.Easing.Bounce.In(k * 2) * 0.5;
  			}
  
  			return TWEEN.Easing.Bounce.Out(k * 2 - 1) * 0.5 + 0.5;
  
  		}
  
  	}
  
  };
  
  TWEEN.Interpolation = {
  
  	Linear: function (v, k) {
  
  		var m = v.length - 1;
  		var f = m * k;
  		var i = Math.floor(f);
  		var fn = TWEEN.Interpolation.Utils.Linear;
  
  		if (k < 0) {
  			return fn(v[0], v[1], f);
  		}
  
  		if (k > 1) {
  			return fn(v[m], v[m - 1], m - f);
  		}
  
  		return fn(v[i], v[i + 1 > m ? m : i + 1], f - i);
  
  	},
  
  	Bezier: function (v, k) {
  
  		var b = 0;
  		var n = v.length - 1;
  		var pw = Math.pow;
  		var bn = TWEEN.Interpolation.Utils.Bernstein;
  
  		for (var i = 0; i <= n; i++) {
  			b += pw(1 - k, n - i) * pw(k, i) * v[i] * bn(n, i);
  		}
  
  		return b;
  
  	},
  
  	CatmullRom: function (v, k) {
  
  		var m = v.length - 1;
  		var f = m * k;
  		var i = Math.floor(f);
  		var fn = TWEEN.Interpolation.Utils.CatmullRom;
  
  		if (v[0] === v[m]) {
  
  			if (k < 0) {
  				i = Math.floor(f = m * (1 + k));
  			}
  
  			return fn(v[(i - 1 + m) % m], v[i], v[(i + 1) % m], v[(i + 2) % m], f - i);
  
  		} else {
  
  			if (k < 0) {
  				return v[0] - (fn(v[0], v[0], v[1], v[1], -f) - v[0]);
  			}
  
  			if (k > 1) {
  				return v[m] - (fn(v[m], v[m], v[m - 1], v[m - 1], f - m) - v[m]);
  			}
  
  			return fn(v[i ? i - 1 : 0], v[i], v[m < i + 1 ? m : i + 1], v[m < i + 2 ? m : i + 2], f - i);
  
  		}
  
  	},
  
  	Utils: {
  
  		Linear: function (p0, p1, t) {
  
  			return (p1 - p0) * t + p0;
  
  		},
  
  		Bernstein: function (n, i) {
  
  			var fc = TWEEN.Interpolation.Utils.Factorial;
  
  			return fc(n) / fc(i) / fc(n - i);
  
  		},
  
  		Factorial: (function () {
  
  			var a = [1];
  
  			return function (n) {
  
  				var s = 1;
  
  				if (a[n]) {
  					return a[n];
  				}
  
  				for (var i = n; i > 1; i--) {
  					s *= i;
  				}
  
  				a[n] = s;
  				return s;
  
  			};
  
  		})(),
  
  		CatmullRom: function (p0, p1, p2, p3, t) {
  
  			var v0 = (p2 - p0) * 0.5;
  			var v1 = (p3 - p1) * 0.5;
  			var t2 = t * t;
  			var t3 = t * t2;
  
  			return (2 * p1 - 2 * p2 + v0 + v1) * t3 + (- 3 * p1 + 3 * p2 - 2 * v0 - v1) * t2 + v0 * t + p1;
  
  		}
  
  	}
  
  };
  
  // UMD (Universal Module Definition)
  (function (root) {
  
  	if (typeof define === 'function' && define.amd) {
  
  		// AMD
  		define([], function () {
  			return TWEEN;
  		});
  
  	} else if (typeof module !== 'undefined' && typeof exports === 'object') {
  
  		// Node.js
  		module.exports = TWEEN;
  
  	} else if (root !== undefined) {
  
  		// Global variable
  		root.TWEEN = TWEEN;
  
  	}
  
  })(this);
  