// O(1) complexity, since there is no big loop to go through
public void Create(double x, double y, double velocityX, double velocityY, int lifetime)
{
// Make sure the pool isn't full
Debug.Assert(_firstAvilable != null);
// remove if from the avilable list
ParticleWithFreeList newParticle = _firstAvilable;
_firstAvilable = newParticle.GetNext();
newParticle.Initialize(x, y, velocityX, velocityY, lifetime);
}
