particle_destruction_listener.dart

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 * Copyright (c) 2015, Daniel Murphy, Google
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part of box2d;

abstract class ParticleDestructionListener {
  /**
   * Called when any particle group is about to be destroyed.
   */
  void sayGoodbyeParticleGroup(ParticleGroup group);

  /**
   * Called when a particle is about to be destroyed. The index can be used in conjunction with
   * {@link World#getParticleUserDataBuffer} to determine which particle has been destroyed.
   * 
   * @param index
   */
  void sayGoodbyeIndex(int index);
}