tunnelbridge.h

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/*
 * This file is part of OpenTTD.
 * 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.
 * 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.
 * 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/>.
 */
 
#ifndef TUNNELBRIDGE_H
#define TUNNELBRIDGE_H
 
#include "map_func.h"
#include "tile_map.h"
 
void MarkBridgeDirty(TileIndex begin, TileIndex end, DiagDirection direction, uint bridge_height);
void MarkBridgeDirty(TileIndex tile);
 
inline uint GetTunnelBridgeLength(TileIndex begin, TileIndex end)
{
  int x1 = TileX(begin);
  int y1 = TileY(begin);
  int x2 = TileX(end);
  int y2 = TileY(end);
 
  return abs(x2 + y2 - x1 - y1) - 1;
}
 
inline void SetTunnelBridgeOwner(TileIndex begin, TileIndex end, Owner owner)
{
  SetTileOwner(begin, owner);
  SetTileOwner(end, owner);
}
 
extern TileIndex _build_tunnel_endtile;
 
#endif /* TUNNELBRIDGE_H */