Box2D.Collision.Collision.GetPointStates C# (CSharp) Метод

        public static void GetPointStates(PointState[] state1, PointState[] state2, Manifold manifold1, Manifold manifold2)
        {
            for (int i = 0; i < Settings.MAX_MANIFOLD_POINTS; i++)
            {
                state1[i] = PointState.NullState;
                state2[i] = PointState.NullState;
            }

            // Detect persists and removes.
            for (int i = 0; i < manifold1.PointCount; i++)
            {
                ContactID id = manifold1.Points[i].Id;

                state1[i] = PointState.RemoveState;

                for (int j = 0; j < manifold2.PointCount; j++)
                {
                    if (manifold2.Points[j].Id.IsEqual(id))
                    {
                        state1[i] = PointState.PersistState;
                        break;
                    }
                }
            }

            // Detect persists and adds
            for (int i = 0; i < manifold2.PointCount; i++)
            {
                ContactID id = manifold2.Points[i].Id;

                state2[i] = PointState.AddState;

                for (int j = 0; j < manifold1.PointCount; j++)
                {
                    if (manifold1.Points[j].Id.IsEqual(id))
                    {
                        state2[i] = PointState.PersistState;
                        break;
                    }
                }
            }
        }