private void CheckForCollisions(IGameObject obj)
        {
            List<IGameObject> objectsInArea = quadtree.Query(obj.Rectangle);

            IGeometricShape geometricShape = obj.GetGeometricShape();
            foreach (IGameObject gameObject in objectsInArea)
            {
                if (gameObject == obj)
                    continue;

                List<Vector2D> temp = null;
                if (geometricShape.Intersects(gameObject.GetGeometricShape(), out temp))
                {
                    collisionArguments[obj].Add(gameObject, temp);
                }
            }
        }