autoslope.h

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00001 /* $Id: autoslope.h 23735 2012-01-03 20:26:05Z rubidium $ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * 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.
00006  * 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.
00007  * 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/>.
00008  */
00009 
00012 #ifndef AUTOSLOPE_H
00013 #define AUTOSLOPE_H
00014 
00015 #include "company_func.h"
00016 #include "depot_func.h"
00017 #include "tile_map.h"
00018 
00033 static inline bool AutoslopeCheckForEntranceEdge(TileIndex tile, int z_new, Slope tileh_new, DiagDirection entrance)
00034 {
00035   if (GetTileMaxZ(tile) != z_new + GetSlopeMaxZ(tileh_new)) return false;
00036   return ((tileh_new == SLOPE_FLAT) || CanBuildDepotByTileh(entrance, tileh_new));
00037 }
00038 
00046 static inline bool AutoslopeEnabled()
00047 {
00048   return (_settings_game.construction.autoslope &&
00049           (_current_company < MAX_COMPANIES ||
00050            (_current_company == OWNER_NONE && _game_mode == GM_EDITOR)));
00051 }
00052 
00053 #endif /* AUTOSLOPE_H */