Package	org.flintparticles.common.activities
Class	public class UpdateOnFrame
Inheritance	UpdateOnFrame ActivityBase Object

The UpdateOnFrame activity is used to call a frameUpdate method of an object that implements the FrameUpdatable interface. The frameUpdate method is called once every frame.

This activity is most often used to update an action once every frame. Because the update method of an action is called once for every particle, every frame, there is no obvious point for an action to implement code that should be called once only every frame, irrespective of the number of particles. If the action implements FrameUpdatable and adds an UpdateOnFrame activity to the emitter in its addedToEmitter method, the frameUpdate method will be called once every frame.

See the Explosion Action for an example of an action that uses this activity.

See also

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