Tick callbacks, and any "display" code - for instance updating a particle system or interpolating position for smoother display - in onFrame.<p>
   
   <p>A simple component that receives ticked looks like this. Notice it implements the ITickedObject interface:</p>
   
   <pre class="brush: js">
   // Example of a component which receives tick callbacks.
   public class DemoTickedComponent extends EntityComponent implements ITickedObject
   {
      public function onTick(tickRate:Number):void
     