public static MuzzleLuz Acquire(Matrix offset, float life, float scale)
            {
                MuzzleLuz muzzle = null;
                Luz       luz    = Luz.Acquire(Luz.LuzGroup.Fire);

                if (luz != null)
                {
                    muzzle = Get(offset);

                    muzzle.age  = 0;
                    muzzle.Luz  = luz;
                    muzzle.Life = life;
                    muzzle.InitRadii();
                    muzzle.ScaleRadii(scale);
                }

                return(muzzle);
            }
            private static MuzzleLuz Get(Matrix offset)
            {
                MuzzleLuz muzzle = null;

                if (available.Count == 0)
                {
                    muzzle = new MuzzleLuz(offset);
                    ready.Add(muzzle);
                }
                else
                {
                    muzzle = available[available.Count - 1];
                    available.RemoveAt(available.Count - 1);
                    ready.Add(muzzle);

                    muzzle.Offset = offset;
                }
                return(muzzle);
            }