src/tunnelbridge_map.h

   1 /* $Id$ */
   2
   3 /*
   4  * This file is part of OpenTTD.
   5  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
   6  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   7  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
   8  */
   9
  10 /** @file tunnelbridge_map.h Functions that have tunnels and bridges in common */
  11
  12 #ifndef TUNNELBRIDGE_MAP_H
  13 #define TUNNELBRIDGE_MAP_H
  14
  15 #include "bridge_map.h"
  16 #include "map/tunnel.h"
  17
  18
  19 /**
  20  * Determines type of the wormhole and returns its other end
  21  * @param t one end
  22  * @pre IsTunnelTile(t) || IsBridgeHeadTile(t)
  23  * @return other end
  24  */
  25 static inline TileIndex GetOtherTunnelBridgeEnd(TileIndex t)
  26 {
  27         assert(IsTunnelTile(t) || IsBridgeHeadTile(t));
  28         return IsTunnelTile(t) ? GetOtherTunnelEnd(t) : GetOtherBridgeEnd(t);
  29 }
  30
  31
  32 #endif /* TUNNELBRIDGE_MAP_H */