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00012 #ifndef AI_RAIL_HPP
00013 #define AI_RAIL_HPP
00014
00015 #include "ai_object.hpp"
00016 #include "ai_error.hpp"
00017 #include "ai_tile.hpp"
00018
00022 class AIRail : public AIObject {
00023 public:
00024 static const char *GetClassName() { return "AIRail"; }
00025
00029 enum ErrorMessages {
00031 ERR_RAIL_BASE = AIError::ERR_CAT_RAIL << AIError::ERR_CAT_BIT_SIZE,
00032
00034 ERR_CROSSING_ON_ONEWAY_ROAD,
00035
00037 ERR_UNSUITABLE_TRACK,
00038
00040 ERR_NONUNIFORM_STATIONS_DISABLED,
00041 };
00042
00046 enum RailType {
00047
00048 RAILTYPE_INVALID = 0xFF,
00049 };
00050
00054 enum RailTrack {
00055
00056 RAILTRACK_NE_SW = 1 << 0,
00057 RAILTRACK_NW_SE = 1 << 1,
00058 RAILTRACK_NW_NE = 1 << 2,
00059 RAILTRACK_SW_SE = 1 << 3,
00060 RAILTRACK_NW_SW = 1 << 4,
00061 RAILTRACK_NE_SE = 1 << 5,
00062 RAILTRACK_INVALID = 0xFF,
00063 };
00064
00068 enum SignalType {
00069
00070 SIGNALTYPE_NORMAL = 0,
00071 SIGNALTYPE_ENTRY = 1,
00072 SIGNALTYPE_EXIT = 2,
00073 SIGNALTYPE_COMBO = 3,
00074 SIGNALTYPE_PBS = 4,
00075 SIGNALTYPE_PBS_ONEWAY = 5,
00076 SIGNALTYPE_TWOWAY = 8,
00077 SIGNALTYPE_NORMAL_TWOWAY = SIGNALTYPE_NORMAL | SIGNALTYPE_TWOWAY,
00078 SIGNALTYPE_ENTRY_TWOWAY = SIGNALTYPE_ENTRY | SIGNALTYPE_TWOWAY,
00079 SIGNALTYPE_EXIT_TWOWAY = SIGNALTYPE_EXIT | SIGNALTYPE_TWOWAY,
00080 SIGNALTYPE_COMBO_TWOWAY = SIGNALTYPE_COMBO | SIGNALTYPE_TWOWAY,
00081 SIGNALTYPE_NONE = 0xFF,
00082 };
00083
00087 enum BuildType {
00088 BT_TRACK,
00089 BT_SIGNAL,
00090 BT_DEPOT,
00091 BT_STATION,
00092 BT_WAYPOINT,
00093 };
00094
00103 static bool IsRailTile(TileIndex tile);
00104
00110 static bool IsLevelCrossingTile(TileIndex tile);
00111
00118 static bool IsRailDepotTile(TileIndex tile);
00119
00126 static bool IsRailStationTile(TileIndex tile);
00127
00134 static bool IsRailWaypointTile(TileIndex tile);
00135
00141 static bool IsRailTypeAvailable(RailType rail_type);
00142
00147 static RailType GetCurrentRailType();
00148
00153 static void SetCurrentRailType(RailType rail_type);
00154
00165 static bool TrainCanRunOnRail(AIRail::RailType engine_rail_type, AIRail::RailType track_rail_type);
00166
00175 static bool TrainHasPowerOnRail(AIRail::RailType engine_rail_type, AIRail::RailType track_rail_type);
00176
00183 static RailType GetRailType(TileIndex tile);
00184
00196 static bool ConvertRailType(TileIndex start_tile, TileIndex end_tile, AIRail::RailType convert_to);
00197
00204 static TileIndex GetRailDepotFrontTile(TileIndex depot);
00205
00212 static RailTrack GetRailStationDirection(TileIndex tile);
00213
00226 static bool BuildRailDepot(TileIndex tile, TileIndex front);
00227
00249 static bool BuildRailStation(TileIndex tile, RailTrack direction, uint num_platforms, uint platform_length, StationID station_id);
00250
00279 static bool BuildNewGRFRailStation(TileIndex tile, RailTrack direction, uint num_platforms, uint platform_length, StationID station_id, CargoID cargo_id, IndustryType source_industry, IndustryType goal_industry, int distance, bool source_station);
00280
00291 static bool BuildRailWaypoint(TileIndex tile);
00292
00302 static bool RemoveRailWaypointTileRectangle(TileIndex tile, TileIndex tile2, bool keep_rail);
00303
00313 static bool RemoveRailStationTileRectangle(TileIndex tile, TileIndex tile2, bool keep_rail);
00314
00322 static uint GetRailTracks(TileIndex tile);
00323
00339 static bool BuildRailTrack(TileIndex tile, RailTrack rail_track);
00340
00351 static bool RemoveRailTrack(TileIndex tile, RailTrack rail_track);
00352
00363 static bool AreTilesConnected(TileIndex from, TileIndex tile, TileIndex to);
00364
00386 static bool BuildRail(TileIndex from, TileIndex tile, TileIndex to);
00387
00402 static bool RemoveRail(TileIndex from, TileIndex tile, TileIndex to);
00403
00411 static SignalType GetSignalType(TileIndex tile, TileIndex front);
00412
00423 static bool BuildSignal(TileIndex tile, TileIndex front, SignalType signal);
00424
00433 static bool RemoveSignal(TileIndex tile, TileIndex front);
00434
00442 static Money GetBuildCost(RailType railtype, BuildType build_type);
00443 };
00444
00445 #endif