jocly/third-party/tween.js

// tween.js r5 - http://github.com/sole/tween.js
var TWEEN = TWEEN || function() {
	var a, e, c = 60, b = false, h = [];
	return {
		setFPS : function(f) {
			c = f || 60
		},
		start : function(f) {
			arguments.length != 0 && this.setFPS(f);
			e = setInterval(this.update, 1E3 / c)
		},
		stop : function() {
			clearInterval(e)
		},
		setAutostart : function(f) {
			(b = f) && !e && this.start()
		},
		add : function(f) {
			h.push(f);
			b && !e && this.start()
		},
		getAll : function() {
			return h
		},
		removeAll : function() {
			h = []
		},
		remove : function(f) {
			a = h.indexOf(f);
			a !== -1 && h.splice(a, 1)
		},
		update : function(f) {
			a = 0;
			num_tweens = h.length;
			for (f = f || Date.now(); a < num_tweens;)
				if (h[a].update(f))
					a++;
				else {
					h.splice(a, 1);
					num_tweens--
				}
			num_tweens == 0 && b == true && this.stop()
		}
	}
}();
TWEEN.Tween = function(a) {
	var e = {}, c = {}, b = {}, h = 1E3, f = 0, j = null, n = TWEEN.Easing.Linear.EaseNone, k = null, l = null, m = null;
	this.to = function(d, g) {
		if (g !== null)
			h = g;
		for ( var i in d)
			if (a[i] !== null)
				b[i] = d[i];
		return this
	};
	this.start = function(d) {
		TWEEN.add(this);
		j = d ? d + f : Date.now() + f;
		for ( var g in b)
			if (a[g] !== null) {
				e[g] = a[g];
				c[g] = b[g] - a[g]
			}
		return this
	};
	this.stop = function() {
		TWEEN.remove(this);
		return this
	};
	this.delay = function(d) {
		f = d;
		return this
	};
	this.easing = function(d) {
		n = d;
		return this
	};
	this.chain = function(d) {
		k = d
	};
	this.onUpdate = function(d) {
		l = d;
		return this
	};
	this.onComplete = function(d) {
		m = function() {
			var $this=this;
			setTimeout(function() {
				d.call($this);				
			},0);
		}
		return this
	};
	this.update = function(d) {
		var g, i;
		if (d < j)
			return true;
		d = (d - j) / h;
		d = d > 1 ? 1 : d;
		i = n(d);
		for (g in c)
			a[g] = e[g] + c[g] * i;
		l !== null && l.call(a, i);
		if (d == 1) {
			m !== null && m.call(a);
			k !== null && k.start();
			return false
		}
		return true
	}
};
TWEEN.Easing = {
	Linear : {},
	Quadratic : {},
	Cubic : {},
	Quartic : {},
	Quintic : {},
	Sinusoidal : {},
	Exponential : {},
	Circular : {},
	Elastic : {},
	Back : {},
	Bounce : {}
};
TWEEN.Easing.Linear.EaseNone = function(a) {
	return a
};
TWEEN.Easing.Quadratic.EaseIn = function(a) {
	return a * a
};
TWEEN.Easing.Quadratic.EaseOut = function(a) {
	return -a * (a - 2)
};
TWEEN.Easing.Quadratic.EaseInOut = function(a) {
	if ((a *= 2) < 1)
		return 0.5 * a * a;
	return -0.5 * (--a * (a - 2) - 1)
};
TWEEN.Easing.Cubic.EaseIn = function(a) {
	return a * a * a
};
TWEEN.Easing.Cubic.EaseOut = function(a) {
	return --a * a * a + 1
};
TWEEN.Easing.Cubic.EaseInOut = function(a) {
	if ((a *= 2) < 1)
		return 0.5 * a * a * a;
	return 0.5 * ((a -= 2) * a * a + 2)
};
TWEEN.Easing.Quartic.EaseIn = function(a) {
	return a * a * a * a
};
TWEEN.Easing.Quartic.EaseOut = function(a) {
	return -(--a * a * a * a - 1)
};
TWEEN.Easing.Quartic.EaseInOut = function(a) {
	if ((a *= 2) < 1)
		return 0.5 * a * a * a * a;
	return -0.5 * ((a -= 2) * a * a * a - 2)
};
TWEEN.Easing.Quintic.EaseIn = function(a) {
	return a * a * a * a * a
};
TWEEN.Easing.Quintic.EaseOut = function(a) {
	return (a -= 1) * a * a * a * a + 1
};
TWEEN.Easing.Quintic.EaseInOut = function(a) {
	if ((a *= 2) < 1)
		return 0.5 * a * a * a * a * a;
	return 0.5 * ((a -= 2) * a * a * a * a + 2)
};
TWEEN.Easing.Sinusoidal.EaseIn = function(a) {
	return -Math.cos(a * Math.PI / 2) + 1
};
TWEEN.Easing.Sinusoidal.EaseOut = function(a) {
	return Math.sin(a * Math.PI / 2)
};
TWEEN.Easing.Sinusoidal.EaseInOut = function(a) {
	return -0.5 * (Math.cos(Math.PI * a) - 1)
};
TWEEN.Easing.Exponential.EaseIn = function(a) {
	return a == 0 ? 0 : Math.pow(2, 10 * (a - 1))
};
TWEEN.Easing.Exponential.EaseOut = function(a) {
	return a == 1 ? 1 : -Math.pow(2, -10 * a) + 1
};
TWEEN.Easing.Exponential.EaseInOut = function(a) {
	if (a == 0)
		return 0;
	if (a == 1)
		return 1;
	if ((a *= 2) < 1)
		return 0.5 * Math.pow(2, 10 * (a - 1));
	return 0.5 * (-Math.pow(2, -10 * (a - 1)) + 2)
};
TWEEN.Easing.Circular.EaseIn = function(a) {
	return -(Math.sqrt(1 - a * a) - 1)
};
TWEEN.Easing.Circular.EaseOut = function(a) {
	return Math.sqrt(1 - --a * a)
};
TWEEN.Easing.Circular.EaseInOut = function(a) {
	if ((a /= 0.5) < 1)
		return -0.5 * (Math.sqrt(1 - a * a) - 1);
	return 0.5 * (Math.sqrt(1 - (a -= 2) * a) + 1)
};
TWEEN.Easing.Elastic.EaseIn = function(a) {
	var e, c = 0.1, b = 0.4;
	if (a == 0)
		return 0;
	if (a == 1)
		return 1;
	b || (b = 0.3);
	if (!c || c < 1) {
		c = 1;
		e = b / 4
	} else
		e = b / (2 * Math.PI) * Math.asin(1 / c);
	return -(c * Math.pow(2, 10 * (a -= 1)) * Math.sin((a - e) * 2 * Math.PI
			/ b))
};
TWEEN.Easing.Elastic.EaseOut = function(a) {
	var e, c = 0.1, b = 0.4;
	if (a == 0)
		return 0;
	if (a == 1)
		return 1;
	b || (b = 0.3);
	if (!c || c < 1) {
		c = 1;
		e = b / 4
	} else
		e = b / (2 * Math.PI) * Math.asin(1 / c);
	return c * Math.pow(2, -10 * a) * Math.sin((a - e) * 2 * Math.PI / b) + 1
};
TWEEN.Easing.Elastic.EaseInOut = function(a) {
	var e, c = 0.1, b = 0.4;
	if (a == 0)
		return 0;
	if (a == 1)
		return 1;
	b || (b = 0.3);
	if (!c || c < 1) {
		c = 1;
		e = b / 4
	} else
		e = b / (2 * Math.PI) * Math.asin(1 / c);
	if ((a *= 2) < 1)
		return -0.5 * c * Math.pow(2, 10 * (a -= 1))
				* Math.sin((a - e) * 2 * Math.PI / b);
	return c * Math.pow(2, -10 * (a -= 1))
			* Math.sin((a - e) * 2 * Math.PI / b) * 0.5 + 1
};
TWEEN.Easing.Back.EaseIn = function(a) {
	return a * a * (2.70158 * a - 1.70158)
};
TWEEN.Easing.Back.EaseOut = function(a) {
	return (a -= 1) * a * (2.70158 * a + 1.70158) + 1
};
TWEEN.Easing.Back.EaseInOut = function(a) {
	if ((a *= 2) < 1)
		return 0.5 * a * a * (3.5949095 * a - 2.5949095);
	return 0.5 * ((a -= 2) * a * (3.5949095 * a + 2.5949095) + 2)
};
TWEEN.Easing.Bounce.EaseIn = function(a) {
	return 1 - TWEEN.Easing.Bounce.EaseOut(1 - a)
};
TWEEN.Easing.Bounce.EaseOut = function(a) {
	return (a /= 1) < 1 / 2.75 ? 7.5625 * a * a : a < 2 / 2.75 ? 7.5625
			* (a -= 1.5 / 2.75) * a + 0.75 : a < 2.5 / 2.75 ? 7.5625
			* (a -= 2.25 / 2.75) * a + 0.9375 : 7.5625 * (a -= 2.625 / 2.75)
			* a + 0.984375
};
TWEEN.Easing.Bounce.EaseInOut = function(a) {
	if (a < 0.5)
		return TWEEN.Easing.Bounce.EaseIn(a * 2) * 0.5;
	return TWEEN.Easing.Bounce.EaseOut(a * 2 - 1) * 0.5 + 0.5
};