phaser/Phaser/tweens/easing/Quadratic.ts

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