00001 /* $Id: ai_tunnel.hpp 21890 2011-01-22 14:52:20Z 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 AI_TUNNEL_HPP 00013 #define AI_TUNNEL_HPP 00014 00015 #include "ai_vehicle.hpp" 00016 00020 class AITunnel : public AIObject { 00021 public: 00023 static const char *GetClassName() { return "AITunnel"; } 00024 00028 enum ErrorMessages { 00029 00031 ERR_TUNNEL_BASE = AIError::ERR_CAT_TUNNEL << AIError::ERR_CAT_BIT_SIZE, 00032 00034 ERR_TUNNEL_CANNOT_BUILD_ON_WATER, // [STR_ERROR_CAN_T_BUILD_ON_WATER] 00035 00037 ERR_TUNNEL_START_SITE_UNSUITABLE, // [STR_ERROR_SITE_UNSUITABLE_FOR_TUNNEL] 00038 00040 ERR_TUNNEL_ANOTHER_TUNNEL_IN_THE_WAY, // [STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY] 00041 00043 ERR_TUNNEL_END_SITE_UNSUITABLE, // [STR_ERROR_UNABLE_TO_EXCAVATE_LAND] 00044 }; 00045 00052 static bool IsTunnelTile(TileIndex tile); 00053 00066 static TileIndex GetOtherTunnelEnd(TileIndex tile); 00067 00068 #ifndef DOXYGEN_SKIP 00069 00072 static bool _BuildTunnelRoad1(); 00073 00077 static bool _BuildTunnelRoad2(); 00078 #endif /* DOXYGEN_SKIP */ 00079 00102 static bool BuildTunnel(AIVehicle::VehicleType vehicle_type, TileIndex start); 00103 00111 static bool RemoveTunnel(TileIndex tile); 00112 }; 00113 00114 #endif /* AI_TUNNEL_HPP */