PANEL* pan_crosshair = 
{
	bmap = your_bmap;
}

ENTITY* nearest_plane;

function crosshair()
{
	VECTOR temp;
	while(1)
	{
		if(nearest_plane != NULL) // check if nearest plane exists
		{
			vec_set(temp,nearest_plane.x);
			if (vec_to_screen(temp,camera) != NULL) // if visible on screen, convert to screen coordinates
			{
				pan_crosshair.pos_x = integer(temp.x - bmap_width(your_bmap) / 2); // place the crosshair
				pan_crosshair.pos_y = integer(temp.y - bmap_height(your_bmap) / 2);;
				set(pan_crosshair,SHOW);
			} 
			else 
			{
				reset(pan_crosshair,SHOW);
			}
		}
		else 
		{
			reset(pan_crosshair,SHOW);
		}
		wait(1);
	}
	
}

action plane()
{
	while(me)
	{
		if(vec_dist(my.x,camera.x) < vec_dist(nearest_plane.x,camera.x)) // Check if not the nearest plane
			nearest_plane = me; // Set to the nearest plane
		wait(1);
	}
}