public override void skipTo(float timelineTime)
 {
     arrow       = PropSimObject.getElement(Arrow.ArrowBehaviorName) as Arrow;
     arrow.Color = ArrowColor;
 }
 public override void editingCompleted(PropEditController propEditController)
 {
     arrow = null;
 }
 public override void started(float timelineTime, Engine.Platform.Clock clock)
 {
     arrow       = PropSimObject.getElement(Arrow.ArrowBehaviorName) as Arrow;
     arrow.Color = ArrowColor;
 }