/// <summary>
 /// Add a method that will be triggered each time the mouse
 /// moves over the map
 /// </summary>
 public void AddMouseMoved(MouseMovedDelegate moved)
 {
     _mouseMoved += moved;
 }
 /// <summary>
 /// Add a method that will be triggered each time the mouse
 /// moves over the map
 /// </summary>
 public void AddMouseMoved(MouseMovedDelegate moved)
 {
     _mouseMoved += moved;
 }