Questions around Tween animation (Lemur/AnimComposer/MonkeyTrap)

Ali_RS · October 9, 2019, 8:43am

How would you handle a backward tween? I mean can ‘Animation’ (in Lemur animation system) have negative speed?

Back in MonkeyTrap you had an Invert interpolator

jMonkeyEngine-Contributions/zay-es/blob/c9f10efa5348c006c71791c38960347032a134fc/examples/MonkeyTrap/src/trap/task/Interpolators.java#L213


      
                  t = t * t * (3.0 - 2.0 * t);       
                  delegate.interpolate(t);
              }
              
              @Override
              public String toString() {
                  return "SmoothStep[delegate=" + delegate + "]";  
              }
          }
          
          private static class Invert implements Interpolator {
          
              private Interpolator delegate;
              
              public Invert( Interpolator delegate ) {
                  this.delegate = delegate;
              }
               
              public void interpolate( double t ) {
                  delegate.interpolate(1.0 - t);
              }

but seems in Lemur Tweens we don’t/can’t have such idea?