if hp < 1
   {
   score += 200;
   instance_destroy();
   }
if (instance_exists( obj_player_control ) ) {
	if (point_distance(x,y,obj_player_control.x,obj_player_control.y) < 32)
	   {
	   speed = 0; 
	   if global.shield < 1
	      {
	      global.player_hp -= 7;
	      }
	   exit;
	   }
	move_towards_point(obj_player_control.x,obj_player_control.y,6);
}