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package aurelienribon.tweenengine.equations;
import aurelienribon.tweenengine.TweenEquation;
/**
* Easing equation based on Robert Penner's work:
* http://robertpenner.com/easing/
* @author Aurelien Ribon | http://www.aurelienribon.com/
*/
public abstract class Cubic extends TweenEquation {
public static final Cubic IN = new Cubic() {
@Override
public final float compute(float t) {
return t*t*t;
}
@Override
public String toString() {
return "Cubic.IN";
}
};
public static final Cubic OUT = new Cubic() {
@Override
public final float compute(float t) {
return (t-=1)*t*t + 1;
}
@Override
public String toString() {
return "Cubic.OUT";
}
};
public static final Cubic INOUT = new Cubic() {
@Override
public final float compute(float t) {
if ((t*=2) < 1) return 0.5f*t*t*t;
return 0.5f * ((t-=2)*t*t + 2);
}
@Override
public String toString() {
return "Cubic.INOUT";
}
};
}
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