private void ProcessStep()
        {
            switch (step)
            {
            case 1:
            {
                ParticleEmmitor fireEmmitor = ParticleEmmitorFactory.CreateBasicFire(me.SceneMgr, Color.FromArgb(40, 255, 60, 0));
                fireEmmitor.Amount   = 20;
                fireEmmitor.MinLife  = 0.3f;
                fireEmmitor.MaxLife  = 0.4f;
                fireEmmitor.MinSize  = asteroid.Radius / 5.0f;
                fireEmmitor.MaxSize  = asteroid.Radius / 6.0f;
                fireEmmitor.Infinite = true;

                meNode.AddEmmitor(fireEmmitor, new Vector(0, 0), false);
            }
            break;

            case 2:
            {
                asteroid.AddControl(new ShakingControl(1, true, 0.05f));
            }
            break;

            case 3:
                break;
            }
        }
        private void CreateSpark()
        {
            ParticleNode node = new ParticleNode(me.SceneMgr, IdMgr.GetNewId(me.SceneMgr.GetCurrentPlayer().GetId()));

            // TODO spawn in a whole volume
            bool left = me.SceneMgr.GetRandomGenerator().Next(2) == 0 ? false : true;

            if (left)
            {
                Vector position = (meNode.Center - (meNode.Direction.Rotate(Math.PI / 4) * (asteroid.Radius)));
                position      += meNode.Direction * (asteroid.Radius * 1.5);
                node.Position  = position;
                node.Direction = meNode.Direction.Rotate(FastMath.DegToRad(-10));
            }
            else
            {
                Vector position = (meNode.Center - (meNode.Direction.Rotate(-Math.PI / 4) * (asteroid.Radius)));
                position      += meNode.Direction * (asteroid.Radius * 1.5);
                node.Position  = position;
                node.Direction = meNode.Direction.Rotate(FastMath.DegToRad(10));
            }

            float minSize = (float)FastMath.LinearInterpolate(0.2, 0.5, me.SceneMgr.GetRandomGenerator().NextDouble());
            float maxSize = minSize * 1.2f;

            ParticleEmmitor smokeEmmitor = ParticleEmmitorFactory.CreateBasicFire(me.SceneMgr, Color.FromArgb(80, 0, 0, 0));

            smokeEmmitor.Amount      = 20;
            smokeEmmitor.MinLife     = 0.3f;
            smokeEmmitor.MaxLife     = 0.4f;
            smokeEmmitor.MinSize     = minSize * 1.3f;
            smokeEmmitor.MaxSize     = maxSize * 1.3f;
            smokeEmmitor.SpawnRadius = 4f;
            smokeEmmitor.Infinite    = true;

            ParticleEmmitor fireEmmitor = ParticleEmmitorFactory.CreateBasicFire(me.SceneMgr, Color.FromArgb(150, 255, 100, 0));

            fireEmmitor.Amount   = 20;
            fireEmmitor.MinLife  = 0.1f;
            fireEmmitor.MaxLife  = 0.2f;
            fireEmmitor.MinSize  = minSize * 1.1f;
            fireEmmitor.MaxSize  = maxSize * 1.1f;
            fireEmmitor.Infinite = true;

            ParticleEmmitor fireEmmitor2 = ParticleEmmitorFactory.CreateBasicFire(me.SceneMgr, Color.FromArgb(200, 255, 200, 0));

            fireEmmitor2.Amount   = 20;
            fireEmmitor2.MinLife  = 0.1f;
            fireEmmitor2.MaxLife  = 0.1f;
            fireEmmitor2.MinSize  = minSize;
            fireEmmitor2.MaxSize  = maxSize;
            fireEmmitor2.Infinite = true;

            EmmitorGroup grp = new EmmitorGroup();

            grp.Add(smokeEmmitor);
            grp.Add(fireEmmitor);
            grp.Add(fireEmmitor2);

            node.AddEmmitorGroup(grp, new Vector(), false);

            NewtonianMovementControl nmc = new NewtonianMovementControl();

            nmc.Speed = (asteroid.GetControlOfType <IMovementControl>().RealSpeed / tpf) * 0.75f;
            node.AddControl(nmc);
            node.AddControl(new LimitedLifeControl((float)FastMath.LinearInterpolate(0.5, 2, me.SceneMgr.GetRandomGenerator().NextDouble())));

            me.SceneMgr.DelayedAttachToScene(node);
        }