public bool NextIntersects(GameObject next)
{
return next.X1 <= X1+Width && next.Y1 <= Y1+Height && next.Y1+Height > Y1;
}
public void AddObject(string name, int x1, int y1)
{
var obj = new GameObject (name, x1, y1);
ObjectsByName [obj.Name] = obj;
Objects.Add (obj);
}