draw_func(start_sx, start_sy, sx, sy, EL_EMPTY, FALSE);
draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
last_sx = sx;
draw_func(start_sx, start_sy, sx, sy, EL_EMPTY, FALSE);
draw_func(start_sx, start_sy, sx, sy, new_element, FALSE);
last_sx = sx;