/// <summary>
        /// Adding rigid body recursively to check for constraint connections and make sure that its only in 1 island
        /// </summary>
        private void AddRigidBody(MyRigidBody rbo, MyRigidBody secondRigidBody, MyRigidBodyIsland addIsland)
        {
            if (rbo.IsStatic())
            {
                rbo.PutToSleep();
                return;
            }

            if (!m_proccesedList.Add(rbo))
            {
                return;
            }

            // add rigid bodies to island recursively
            int numInteractions = 0;

            for (int j = 0; j < rbo.GetRBElementList().Count; j++)
            {
                MyRBElement el = rbo.GetRBElementList()[j];
                numInteractions += el.GetRBElementInteractions().Count;

                for (int k = 0; k < el.GetRBElementInteractions().Count; k++)
                {
                    if (addIsland == null && !rbo.IsStatic())
                    {
                        addIsland = m_islandsPool.Allocate();
                        addIsland.Clear();
                        addIsland.IterationCount = 0;
                        addIsland.AddRigidBody(rbo);

                        m_islands.Add(addIsland);
                    }
                    else
                    {
                        if (!rbo.IsStatic())
                        {
                            addIsland.AddRigidBody(rbo);
                        }
                    }

                    MyRBElementInteraction intr = el.GetRBElementInteractions()[k];

                    if (intr.GetRigidBody1() != rbo && intr.GetRigidBody2() != secondRigidBody)
                    {
                        AddRigidBody(intr.GetRigidBody1(), rbo, addIsland);
                    }

                    if (intr.GetRigidBody2() != rbo && intr.GetRigidBody1() != secondRigidBody)
                    {
                        AddRigidBody(intr.GetRigidBody2(), rbo, addIsland);
                    }
                }
            }

            // isolated rbo
            if (numInteractions == 0 && !rbo.IsStatic())
            {
                MyRigidBodyIsland island = m_islandsPool.Allocate();
                island.Clear();
                island.IterationCount = 0;
                island.AddRigidBody(rbo);

                m_islands.Add(island);
            }
        }