{
     if ( ((mouse_x >= x) and (mouse_x <= x + sprite_width)) and     
         ((mouse_y >= y) and (mouse_y <= y + sprite_height)))
     {
        x = mouse_x;
        y = mouse_y;
     }
}

{
   if ( ((mouse_x >= x) and (mouse_x <= x + sprite_width)) and   
       ((mouse_y >= y) and (mouse_y <= y + sprite_height))
   {
      x = mouse_x;
      y = mouse_y;
   }
}