OpenTTD: src/tunnelbridge.h Source File

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tunnelbridge.h
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1 /* $Id: tunnelbridge.h 22405 2011-05-01 19:14:12Z rubidium $ */
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
23 static inline uint GetTunnelBridgeLength(TileIndex begin, TileIndex end)
24 {
25 int x1 = TileX(begin);
26 int y1 = TileY(begin);
27 int x2 = TileX(end);
28 int y2 = TileY(end);
29
30 return abs(x2 + y2 - x1 - y1) - 1;
31 }
32
33 extern TileIndex _build_tunnel_endtile;
34
35 #endif /* TUNNELBRIDGE_H */