phaser/Phaser/tweens/easing/Sinusoidal.ts

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/// <reference path="../../_definitions.ts" />
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/**
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* Phaser - Easing - Sinusoidal
*
* For use with Phaser.Tween
*/
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module Phaser.Easing {
export class Sinusoidal {
public static In(k) {
return 1 - Math.cos(k * Math.PI / 2);
}
public static Out(k) {
return Math.sin(k * Math.PI / 2);
}
public static InOut(k) {
return 0.5 * (1 - Math.cos(Math.PI * k));
}
}
}