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tunnelbridge.h
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1 /* $Id: tunnelbridge.h 27157 2015-02-22 14:01:24Z frosch $ */
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
12 #ifndef TUNNELBRIDGE_H
13 #define TUNNELBRIDGE_H
14
15 #include "map_func.h"
16
17 void MarkBridgeDirty(TileIndex begin, TileIndex end, DiagDirection direction, uint bridge_height);
18 void MarkBridgeDirty(TileIndex tile);
19
26 static inline uint GetTunnelBridgeLength(TileIndex begin, TileIndex end)
27 {
28 int x1 = TileX(begin);
29 int y1 = TileY(begin);
30 int x2 = TileX(end);
31 int y2 = TileY(end);
32
33 return abs(x2 + y2 - x1 - y1) - 1;
34 }
35
36 extern TileIndex _build_tunnel_endtile;
37
38 #endif /* TUNNELBRIDGE_H */