//Check if enemies are in range and activate firing if needed

{
       if firing > 0 firing += 1;
       if firing = 30/rate firing = 0;
       if not instance_exists(target) target = noone;
       if instance_exists(ob_enemy)
       {
           if target = noone target = instance_nearest(x,y,ob_enemy);
           if point_distance(x,y,target.x,target.y) > range
               target = noone;
           else if firing = 0
               firing = 1;
       }
       if firing = 1 depth  = -3;
       else depth = -2;
}