internal bool IsCollidingAt(FloatRectangle a_rect)
        {
            Vector2 tileSize = new Vector2(0.9f, 0.9f);

            for (int x = 0; x < g_levelWidth; x++)
            {
                for (int y = 0; y < g_levelHeight; y++)
                {
                    FloatRectangle rect = FloatRectangle.createFromTopLeft(new Vector2(x, y), tileSize);
                    if (a_rect.isIntersecting(rect))
                    {
                        if (m_tiles[x, y] == TileType.BLOCKED || m_tiles[x, y] == TileType.Background)
                        {
                            return(true);
                        }
                    }
                }
            }
            return(false);
        }