phaser/Phaser/system/easing/Sinusoidal.js

var Phaser;
(function (Phaser) {
    /// <reference path="../../Game.ts" />
    /**
    * Phaser - Easing - Sinusoidal
    *
    * For use with Phaser.Tween
    */
    (function (Easing) {
        var Sinusoidal = (function () {
            function Sinusoidal() { }
            Sinusoidal.In = function In(k) {
                return 1 - Math.cos(k * Math.PI / 2);
            };
            Sinusoidal.Out = function Out(k) {
                return Math.sin(k * Math.PI / 2);
            };
            Sinusoidal.InOut = function InOut(k) {
                return 0.5 * (1 - Math.cos(Math.PI * k));
            };
            return Sinusoidal;
        })();
        Easing.Sinusoidal = Sinusoidal;        
    })(Phaser.Easing || (Phaser.Easing = {}));
    var Easing = Phaser.Easing;
})(Phaser || (Phaser = {}));