/// <summary>
/// The update method is used by the emitter to apply the action
/// to every particle. It is called within the emitter's update
/// loop and need not be called by the user.
/// </summary>
/// <param name="emitter">The Emitter that created the particle.</param>
/// <param name="particle">The particle to be updated.</param>
/// <param name="elapsedTime">The duration of the frame - used for time based updates.</param>
public override void Update(Emitter emitter, Particle particle, double elapsedTime)
{
bool inside = m_zone.CollideParticle(particle);
if (m_invertZone)
{
inside = !inside;
}
if (inside)
{
particle.IsDead = true;
}
}