foreach (object e in entities)
                                {
                                    if (e is Ghost)
                                    {
                    Ghost ghost = (Ghost) e;
                                        if (ghost.hitbox.Intersects(tiles[i, j].hitbox))
{
                                        Console.WriteLine("hit");
                                        ghost.pos.Y = ghost.prevPos.Y;
                                        ghost.pos.X = ghost.prevPos.X;
                                        ghost.SetDir(rnd.Next(1,4));
}
                                    }
                                }