/// <summary>
/// Adds a particle to the emitter group to be used be the emitter.
/// </summary>
/// <param name="particle">The particle to add to the emitter group.</param>
/// <returns>The particle that was added to the emitter group.</returns>
public GenParticle Add(GenParticle particle)
{
particle.Kill();
base.Add(particle);
return particle;
}
