| level.c | 537 	short i, tunnel_dir, door_dir, drow, dcol;  local in function:fill_it 575 		put_door(&rooms[target_room], door_dir, &drow, &dcol);
 577 		draw_simple_passage(srow, scol, drow, dcol, tunnel_dir);
 598 	short drow, dcol, tunnel_dir;  local in function:recursive_deadend
 613 		dcol = (rooms[de].left_col + rooms[de].right_col) / 2;
 621 		draw_simple_passage(srow, scol, drow, dcol, tunnel_dir);
 623 		recursive_deadend(de, offsets, drow, dcol);
 
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