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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
00043 ERR_RAILTYPE_DISALLOWS_CROSSING,
00044 };
00045
00049 enum RailType {
00050
00051 RAILTYPE_INVALID = 0xFF,
00052 };
00053
00057 enum RailTrack {
00058
00059 RAILTRACK_NE_SW = 1 << 0,
00060 RAILTRACK_NW_SE = 1 << 1,
00061 RAILTRACK_NW_NE = 1 << 2,
00062 RAILTRACK_SW_SE = 1 << 3,
00063 RAILTRACK_NW_SW = 1 << 4,
00064 RAILTRACK_NE_SE = 1 << 5,
00065 RAILTRACK_INVALID = 0xFF,
00066 };
00067
00071 enum SignalType {
00072
00073 SIGNALTYPE_NORMAL = 0,
00074 SIGNALTYPE_ENTRY = 1,
00075 SIGNALTYPE_EXIT = 2,
00076 SIGNALTYPE_COMBO = 3,
00077 SIGNALTYPE_PBS = 4,
00078 SIGNALTYPE_PBS_ONEWAY = 5,
00079 SIGNALTYPE_TWOWAY = 8,
00080 SIGNALTYPE_NORMAL_TWOWAY = SIGNALTYPE_NORMAL | SIGNALTYPE_TWOWAY,
00081 SIGNALTYPE_ENTRY_TWOWAY = SIGNALTYPE_ENTRY | SIGNALTYPE_TWOWAY,
00082 SIGNALTYPE_EXIT_TWOWAY = SIGNALTYPE_EXIT | SIGNALTYPE_TWOWAY,
00083 SIGNALTYPE_COMBO_TWOWAY = SIGNALTYPE_COMBO | SIGNALTYPE_TWOWAY,
00084 SIGNALTYPE_NONE = 0xFF,
00085 };
00086
00090 enum BuildType {
00091 BT_TRACK,
00092 BT_SIGNAL,
00093 BT_DEPOT,
00094 BT_STATION,
00095 BT_WAYPOINT,
00096 };
00097
00106 static bool IsRailTile(TileIndex tile);
00107
00113 static bool IsLevelCrossingTile(TileIndex tile);
00114
00121 static bool IsRailDepotTile(TileIndex tile);
00122
00129 static bool IsRailStationTile(TileIndex tile);
00130
00137 static bool IsRailWaypointTile(TileIndex tile);
00138
00144 static bool IsRailTypeAvailable(RailType rail_type);
00145
00150 static RailType GetCurrentRailType();
00151
00156 static void SetCurrentRailType(RailType rail_type);
00157
00168 static bool TrainCanRunOnRail(AIRail::RailType engine_rail_type, AIRail::RailType track_rail_type);
00169
00178 static bool TrainHasPowerOnRail(AIRail::RailType engine_rail_type, AIRail::RailType track_rail_type);
00179
00186 static RailType GetRailType(TileIndex tile);
00187
00199 static bool ConvertRailType(TileIndex start_tile, TileIndex end_tile, AIRail::RailType convert_to);
00200
00207 static TileIndex GetRailDepotFrontTile(TileIndex depot);
00208
00215 static RailTrack GetRailStationDirection(TileIndex tile);
00216
00229 static bool BuildRailDepot(TileIndex tile, TileIndex front);
00230
00252 static bool BuildRailStation(TileIndex tile, RailTrack direction, uint num_platforms, uint platform_length, StationID station_id);
00253
00282 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);
00283
00294 static bool BuildRailWaypoint(TileIndex tile);
00295
00305 static bool RemoveRailWaypointTileRectangle(TileIndex tile, TileIndex tile2, bool keep_rail);
00306
00316 static bool RemoveRailStationTileRectangle(TileIndex tile, TileIndex tile2, bool keep_rail);
00317
00325 static uint GetRailTracks(TileIndex tile);
00326
00342 static bool BuildRailTrack(TileIndex tile, RailTrack rail_track);
00343
00354 static bool RemoveRailTrack(TileIndex tile, RailTrack rail_track);
00355
00366 static bool AreTilesConnected(TileIndex from, TileIndex tile, TileIndex to);
00367
00389 static bool BuildRail(TileIndex from, TileIndex tile, TileIndex to);
00390
00405 static bool RemoveRail(TileIndex from, TileIndex tile, TileIndex to);
00406
00414 static SignalType GetSignalType(TileIndex tile, TileIndex front);
00415
00426 static bool BuildSignal(TileIndex tile, TileIndex front, SignalType signal);
00427
00436 static bool RemoveSignal(TileIndex tile, TileIndex front);
00437
00445 static Money GetBuildCost(RailType railtype, BuildType build_type);
00446
00457 static int32 GetMaxSpeed(RailType railtype);
00458 };
00459
00460 #endif