jrtechs
/
jrtechs-sugarizer-lite
mirror of https://github.com/jrtechs/sugarizer-lite.git

/** * @author sole / http://soledadpenades.com
 * @author mrdoob / http://mrdoob.com
 * @author Robert Eisele / http://www.xarg.org
 * @author Philippe / http://philippe.elsass.me
 * @author Robert Penner / http://www.robertpenner.com/easing_terms_of_use.html
 * @author Paul Lewis / http://www.aerotwist.com/
 * @author lechecacharro * @author Josh Faul / http://jocafa.com/
 * @author egraether / http://egraether.com/
 * @author endel / http://endel.me
 * @author Ben Delarre / http://delarre.net
 */
// HACK: window.performance not supported on iOS
if (typeof window.performance === 'undefined') {	window.performance = {};} if (!window.performance.now){	var nowOffset = Date.now(); 	if (performance.timing && performance.timing.navigationStart){		nowOffset = performance.timing.navigationStart	}  	window.performance.now = function now(){		return Date.now() - nowOffset;	} }
// Date.now shim for (ahem) Internet Explo(d|r)er
if ( Date.now === undefined ) {
	Date.now = function () {
		return new Date().valueOf();
	};
}
var TWEEN = TWEEN || ( function () {
	var _tweens = [];
	return {
		REVISION: '12',
		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 ) {
			if ( _tweens.length === 0 ) return false;
			var i = 0;
			time = time !== undefined ? time : ( typeof window !== 'undefined' && window.performance !== undefined && window.performance.now !== undefined ? window.performance.now() : Date.now() );
			while ( i < _tweens.length ) {
				if ( _tweens[ i ].update( time ) ) {
					i++;
				} else {
					_tweens.splice( i, 1 );
				}
			}
			return true;
		}	};
} )();
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;
	// 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 : ( typeof window !== 'undefined' && window.performance !== undefined && window.performance.now !== undefined ? window.performance.now() : Date.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 ] );
			}
			_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;		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.update = function ( time ) {
		var property;
		if ( time < _startTime ) {
			return true;
		}
		if ( _onStartCallbackFired === false ) {
			if ( _onStartCallback !== null ) {
				_onStartCallback.call( _object );
			}
			_onStartCallbackFired = true;
		}
		var elapsed = ( time - _startTime ) / _duration;		elapsed = elapsed > 1 ? 1 : elapsed;
		var value = _easingFunction( elapsed );
		for ( property in _valuesEnd ) {
			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" ) {					end = start + 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;						_reversed = !_reversed;					}					_valuesStart[ property ] = _valuesStartRepeat[ property ];
				}
				_startTime = time + _delayTime;
				return true;
			} else {
				if ( _onCompleteCallback !== null ) {
					_onCompleteCallback.call( _object );
				}
				for ( var i = 0, numChainedTweens = _chainedTweens.length; i < numChainedTweens; i++ ) {
					_chainedTweens[ i ].start( time );
				}
				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 ) {
			var s, a = 0.1, p = 0.4;			if ( k === 0 ) return 0;			if ( k === 1 ) return 1;			if ( !a || a < 1 ) { a = 1; s = p / 4; }			else s = p * Math.asin( 1 / a ) / ( 2 * Math.PI );			return - ( a * Math.pow( 2, 10 * ( k -= 1 ) ) * Math.sin( ( k - s ) * ( 2 * Math.PI ) / p ) );
		},
		Out: function ( k ) {
			var s, a = 0.1, p = 0.4;			if ( k === 0 ) return 0;			if ( k === 1 ) return 1;			if ( !a || a < 1 ) { a = 1; s = p / 4; }			else s = p * Math.asin( 1 / a ) / ( 2 * Math.PI );			return ( a * Math.pow( 2, - 10 * k) * Math.sin( ( k - s ) * ( 2 * Math.PI ) / p ) + 1 );
		},
		InOut: function ( k ) {
			var s, a = 0.1, p = 0.4;			if ( k === 0 ) return 0;			if ( k === 1 ) return 1;			if ( !a || a < 1 ) { a = 1; s = p / 4; }			else s = p * Math.asin( 1 / a ) / ( 2 * Math.PI );			if ( ( k *= 2 ) < 1 ) return - 0.5 * ( a * Math.pow( 2, 10 * ( k -= 1 ) ) * Math.sin( ( k - s ) * ( 2 * Math.PI ) / p ) );			return a * Math.pow( 2, -10 * ( k -= 1 ) ) * Math.sin( ( k - s ) * ( 2 * Math.PI ) / p ) * 0.5 + 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, f = m * k, i = Math.floor( f ), 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, n = v.length - 1, pw = Math.pow, bn = TWEEN.Interpolation.Utils.Bernstein, i;
		for ( 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, f = m * k, i = Math.floor( f ), 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, i;				if ( a[ n ] ) return a[ n ];				for ( i = n; i > 1; i-- ) s *= i;				return a[ n ] = s;
			};
		} )(),
		CatmullRom: function ( p0, p1, p2, p3, t ) {
			var v0 = ( p2 - p0 ) * 0.5, v1 = ( p3 - p1 ) * 0.5, t2 = t * t, t3 = t * t2;			return ( 2 * p1 - 2 * p2 + v0 + v1 ) * t3 + ( - 3 * p1 + 3 * p2 - 2 * v0 - v1 ) * t2 + v0 * t + p1;
		}
	}
};