ai_bridge.hpp

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00001 /* $Id: ai_bridge.hpp 19928 2010-06-04 21:14:22Z 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_BRIDGE_HPP
00013 #define AI_BRIDGE_HPP
00014 
00015 #include "ai_object.hpp"
00016 #include "ai_vehicle.hpp"
00017 #include "ai_error.hpp"
00018 
00022 class AIBridge : public AIObject {
00023 public:
00027   enum ErrorMessages {
00029     ERR_BRIDGE_BASE = AIError::ERR_CAT_BRIDGE << AIError::ERR_CAT_BIT_SIZE,
00030 
00035     ERR_BRIDGE_TYPE_UNAVAILABLE,         // [STR_ERROR_CAN_T_BUILD_BRIDGE_HERE]
00036 
00038     ERR_BRIDGE_CANNOT_END_IN_WATER,      // [STR_ERROR_ENDS_OF_BRIDGE_MUST_BOTH]
00039 
00041     ERR_BRIDGE_HEADS_NOT_ON_SAME_HEIGHT, // [STR_ERROR_BRIDGEHEADS_NOT_SAME_HEIGHT]
00042   };
00043 
00044   static const char *GetClassName() { return "AIBridge"; }
00045 
00051   static bool IsValidBridge(BridgeID bridge_id);
00052 
00059   static bool IsBridgeTile(TileIndex tile);
00060 
00067   static BridgeID GetBridgeID(TileIndex tile);
00068 
00075   static char *GetName(BridgeID bridge_id);
00076 
00086   static int32 GetMaxSpeed(BridgeID bridge_id);
00087 
00095   static Money GetPrice(BridgeID bridge_id, uint length);
00096 
00103   static int32 GetMaxLength(BridgeID bridge_id);
00104 
00111   static int32 GetMinLength(BridgeID bridge_id);
00112 
00113 #ifndef DOXYGEN_SKIP
00114 
00117   static bool _BuildBridgeRoad1();
00118 
00122   static bool _BuildBridgeRoad2();
00123 #endif
00124 
00152   static bool BuildBridge(AIVehicle::VehicleType vehicle_type, BridgeID bridge_id, TileIndex start, TileIndex end);
00153 
00161   static bool RemoveBridge(TileIndex tile);
00162 
00170   static TileIndex GetOtherBridgeEnd(TileIndex tile);
00171 };
00172 
00173 #endif /* AI_BRIDGE_HPP */

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