phaser/todo/TS Source/tweens/easing/Cubic.js

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var Phaser;
(function (Phaser) {
/// <reference path="../../_definitions.ts" />
/**
* @author Richard Davey <rich@photonstorm.com>
* @author sole (http://soledadpenades.com), tween.js
* @copyright 2013 Photon Storm Ltd.
* @license https://github.com/photonstorm/phaser/blob/master/license.txt MIT License
* @module Phaser
*/
(function (Easing) {
/**
* Cubic easing methods.
*
* @class Cubic
*/
var Cubic = (function () {
function Cubic() { }
Cubic.In = /**
* The In ease method.
*
* @method In
* @param {Number} k The value to ease.
* @return {Number} The eased value.
*/
function In(k) {
return k * k * k;
};
Cubic.Out = /**
* The Out ease method.
*
* @method Out
* @param {Number} k The value to ease.
* @return {Number} The eased value.
*/
function Out(k) {
return --k * k * k + 1;
};
Cubic.InOut = /**
* The InOut ease method.
*
* @method InOut
* @param {Number} k The value to ease.
* @return {Number} The eased value.
*/
function InOut(k) {
if((k *= 2) < 1) {
return 0.5 * k * k * k;
}
return 0.5 * ((k -= 2) * k * k + 2);
};
return Cubic;
})();
Easing.Cubic = Cubic;
})(Phaser.Easing || (Phaser.Easing = {}));
var Easing = Phaser.Easing;
})(Phaser || (Phaser = {}));