ai_bridge.hpp

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00001 /* $Id: ai_bridge.hpp 20288 2010-08-01 20:41:46Z yexo $ */
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 
00045   static const char *GetClassName() { return "AIBridge"; }
00046 
00052   static bool IsValidBridge(BridgeID bridge_id);
00053 
00060   static bool IsBridgeTile(TileIndex tile);
00061 
00068   static BridgeID GetBridgeID(TileIndex tile);
00069 
00076   static char *GetName(BridgeID bridge_id);
00077 
00087   static int32 GetMaxSpeed(BridgeID bridge_id);
00088 
00096   static Money GetPrice(BridgeID bridge_id, uint length);
00097 
00104   static int32 GetMaxLength(BridgeID bridge_id);
00105 
00112   static int32 GetMinLength(BridgeID bridge_id);
00113 
00114 #ifndef DOXYGEN_SKIP
00115 
00118   static bool _BuildBridgeRoad1();
00119 
00123   static bool _BuildBridgeRoad2();
00124 #endif
00125 
00153   static bool BuildBridge(AIVehicle::VehicleType vehicle_type, BridgeID bridge_id, TileIndex start, TileIndex end);
00154 
00162   static bool RemoveBridge(TileIndex tile);
00163 
00171   static TileIndex GetOtherBridgeEnd(TileIndex tile);
00172 };
00173 
00174 #endif /* AI_BRIDGE_HPP */

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