RelativeTemporalAction.java

package sink.scene3d.actions;


/** Base class for actions that transition over time using the percent complete since the last frame.
 * @author Nathan Sweet */
abstract public class RelativeTemporalAction extends TemporalAction {
        private float lastPercent;

        protected void begin () {
                lastPercent = 0;
        }

        protected void update (float percent) {
                updateRelative(percent - lastPercent);
                lastPercent = percent;
        }

        abstract protected void updateRelative (float percentDelta);
}