jocly/third-party/tween.js

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2017-03-29 17:30:37 +02:00
// 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
};