Bounce.java

package com.external.easing;

public class Bounce {
	
	public static float  easeIn(float t,float b , float c, float d) {
		return c - easeOut (d-t, 0, c, d) + b;
	}
	
	public static float  easeOut(float t,float b , float c, float d) {
		if ((t/=d) < (1/2.75f)) {
			return c*(7.5625f*t*t) + b;
		} else if (t < (2/2.75f)) {
			return c*(7.5625f*(t-=(1.5f/2.75f))*t + .75f) + b;
		} else if (t < (2.5/2.75)) {
			return c*(7.5625f*(t-=(2.25f/2.75f))*t + .9375f) + b;
		} else {
			return c*(7.5625f*(t-=(2.625f/2.75f))*t + .984375f) + b;
		}
	}
	
	public static float  easeInOut(float t,float b , float c, float d) {
		if (t < d/2) return easeIn (t*2, 0, c, d) * .5f + b;
		else return easeOut (t*2-d, 0, c, d) * .5f + c*.5f + b;
	}

}