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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:
00025 static const char *GetClassName() { return "AIRail"; }
00026
00030 enum ErrorMessages {
00032 ERR_RAIL_BASE = AIError::ERR_CAT_RAIL << AIError::ERR_CAT_BIT_SIZE,
00033
00035 ERR_CROSSING_ON_ONEWAY_ROAD,
00036
00038 ERR_UNSUITABLE_TRACK,
00039
00041 ERR_NONUNIFORM_STATIONS_DISABLED,
00042
00044 ERR_RAILTYPE_DISALLOWS_CROSSING,
00045 };
00046
00050 enum RailType {
00051
00052 RAILTYPE_INVALID = 0xFF,
00053 };
00054
00058 enum RailTrack {
00059
00060 RAILTRACK_NE_SW = 1 << 0,
00061 RAILTRACK_NW_SE = 1 << 1,
00062 RAILTRACK_NW_NE = 1 << 2,
00063 RAILTRACK_SW_SE = 1 << 3,
00064 RAILTRACK_NW_SW = 1 << 4,
00065 RAILTRACK_NE_SE = 1 << 5,
00066 RAILTRACK_INVALID = 0xFF,
00067 };
00068
00072 enum SignalType {
00073
00074 SIGNALTYPE_NORMAL = 0,
00075 SIGNALTYPE_ENTRY = 1,
00076 SIGNALTYPE_EXIT = 2,
00077 SIGNALTYPE_COMBO = 3,
00078 SIGNALTYPE_PBS = 4,
00079 SIGNALTYPE_PBS_ONEWAY = 5,
00080 SIGNALTYPE_TWOWAY = 8,
00081 SIGNALTYPE_NORMAL_TWOWAY = SIGNALTYPE_NORMAL | SIGNALTYPE_TWOWAY,
00082 SIGNALTYPE_ENTRY_TWOWAY = SIGNALTYPE_ENTRY | SIGNALTYPE_TWOWAY,
00083 SIGNALTYPE_EXIT_TWOWAY = SIGNALTYPE_EXIT | SIGNALTYPE_TWOWAY,
00084 SIGNALTYPE_COMBO_TWOWAY = SIGNALTYPE_COMBO | SIGNALTYPE_TWOWAY,
00085 SIGNALTYPE_NONE = 0xFF,
00086 };
00087
00091 enum BuildType {
00092 BT_TRACK,
00093 BT_SIGNAL,
00094 BT_DEPOT,
00095 BT_STATION,
00096 BT_WAYPOINT,
00097 };
00098
00107 static bool IsRailTile(TileIndex tile);
00108
00114 static bool IsLevelCrossingTile(TileIndex tile);
00115
00122 static bool IsRailDepotTile(TileIndex tile);
00123
00130 static bool IsRailStationTile(TileIndex tile);
00131
00138 static bool IsRailWaypointTile(TileIndex tile);
00139
00145 static bool IsRailTypeAvailable(RailType rail_type);
00146
00151 static RailType GetCurrentRailType();
00152
00157 static void SetCurrentRailType(RailType rail_type);
00158
00169 static bool TrainCanRunOnRail(AIRail::RailType engine_rail_type, AIRail::RailType track_rail_type);
00170
00179 static bool TrainHasPowerOnRail(AIRail::RailType engine_rail_type, AIRail::RailType track_rail_type);
00180
00187 static RailType GetRailType(TileIndex tile);
00188
00200 static bool ConvertRailType(TileIndex start_tile, TileIndex end_tile, AIRail::RailType convert_to);
00201
00208 static TileIndex GetRailDepotFrontTile(TileIndex depot);
00209
00216 static RailTrack GetRailStationDirection(TileIndex tile);
00217
00230 static bool BuildRailDepot(TileIndex tile, TileIndex front);
00231
00253 static bool BuildRailStation(TileIndex tile, RailTrack direction, uint num_platforms, uint platform_length, StationID station_id);
00254
00285 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);
00286
00297 static bool BuildRailWaypoint(TileIndex tile);
00298
00308 static bool RemoveRailWaypointTileRectangle(TileIndex tile, TileIndex tile2, bool keep_rail);
00309
00319 static bool RemoveRailStationTileRectangle(TileIndex tile, TileIndex tile2, bool keep_rail);
00320
00328 static uint GetRailTracks(TileIndex tile);
00329
00345 static bool BuildRailTrack(TileIndex tile, RailTrack rail_track);
00346
00357 static bool RemoveRailTrack(TileIndex tile, RailTrack rail_track);
00358
00369 static bool AreTilesConnected(TileIndex from, TileIndex tile, TileIndex to);
00370
00392 static bool BuildRail(TileIndex from, TileIndex tile, TileIndex to);
00393
00408 static bool RemoveRail(TileIndex from, TileIndex tile, TileIndex to);
00409
00417 static SignalType GetSignalType(TileIndex tile, TileIndex front);
00418
00429 static bool BuildSignal(TileIndex tile, TileIndex front, SignalType signal);
00430
00439 static bool RemoveSignal(TileIndex tile, TileIndex front);
00440
00448 static Money GetBuildCost(RailType railtype, BuildType build_type);
00449
00460 static int32 GetMaxSpeed(RailType railtype);
00461 };
00462
00463 #endif