ai_road.hpp
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00002
00005 #ifndef AI_ROAD_HPP
00006 #define AI_ROAD_HPP
00007
00008 #include "ai_object.hpp"
00009 #include "ai_error.hpp"
00010 #include "ai_tile.hpp"
00011
00015 class AIRoad : public AIObject {
00016 public:
00017 static const char *GetClassName() { return "AIRoad"; }
00018
00022 enum ErrorMessages {
00024 ERR_ROAD_BASE = AIError::ERR_CAT_ROAD << AIError::ERR_CAT_BIT_SIZE,
00025
00027 ERR_ROAD_WORKS_IN_PROGRESS,
00028
00030 ERR_ROAD_DRIVE_THROUGH_WRONG_DIRECTION,
00031
00033 ERR_ROAD_CANNOT_BUILD_ON_TOWN_ROAD,
00034
00035
00037 ERR_ROAD_ONE_WAY_ROADS_CANNOT_HAVE_JUNCTIONS,
00038 };
00039
00043 enum RoadType {
00044
00045 ROADTYPE_ROAD = 0,
00046 ROADTYPE_TRAM = 1,
00047
00048 ROADTYPE_INVALID = -1,
00049 };
00050
00054 enum RoadVehicleType {
00055 ROADVEHTYPE_BUS,
00056 ROADVEHTYPE_TRUCK,
00057 };
00058
00065 static RoadVehicleType GetRoadVehicleTypeForCargo(CargoID cargo_type);
00066
00075 static bool IsRoadTile(TileIndex tile);
00076
00083 static bool IsRoadDepotTile(TileIndex tile);
00084
00091 static bool IsRoadStationTile(TileIndex tile);
00092
00100 static bool IsDriveThroughRoadStationTile(TileIndex tile);
00101
00107 static bool IsRoadTypeAvailable(RoadType road_type);
00108
00113 static RoadType GetCurrentRoadType();
00114
00119 static void SetCurrentRoadType(RoadType road_type);
00120
00129 static bool HasRoadType(TileIndex tile, RoadType road_type);
00130
00142 static bool AreRoadTilesConnected(TileIndex tile_from, TileIndex tile_to);
00143
00173 static int32 CanBuildConnectedRoadParts(AITile::Slope slope, struct Array *existing, TileIndex start, TileIndex end);
00174
00194 static int32 CanBuildConnectedRoadPartsHere(TileIndex tile, TileIndex start, TileIndex end);
00195
00202 static int32 GetNeighbourRoadCount(TileIndex tile);
00203
00210 static TileIndex GetRoadDepotFrontTile(TileIndex depot);
00211
00218 static TileIndex GetRoadStationFrontTile(TileIndex station);
00219
00228 static TileIndex GetDriveThroughBackTile(TileIndex station);
00229
00248 static bool BuildRoad(TileIndex start, TileIndex end);
00249
00274 static bool BuildOneWayRoad(TileIndex start, TileIndex end);
00275
00295 static bool BuildRoadFull(TileIndex start, TileIndex end);
00296
00322 static bool BuildOneWayRoadFull(TileIndex start, TileIndex end);
00323
00335 static bool BuildRoadDepot(TileIndex tile, TileIndex front);
00336
00358 static bool BuildRoadStation(TileIndex tile, TileIndex front, RoadVehicleType road_veh_type, StationID station_id);
00359
00381 static bool BuildDriveThroughRoadStation(TileIndex tile, TileIndex front, RoadVehicleType road_veh_type, StationID station_id);
00382
00397 static bool RemoveRoad(TileIndex start, TileIndex end);
00398
00414 static bool RemoveRoadFull(TileIndex start, TileIndex end);
00415
00425 static bool RemoveRoadDepot(TileIndex tile);
00426
00436 static bool RemoveRoadStation(TileIndex tile);
00437
00438 private:
00439
00443 static bool _BuildRoadInternal(TileIndex start, TileIndex end, bool one_way, bool full);
00444
00448 static bool _BuildRoadStationInternal(TileIndex tile, TileIndex front, RoadVehicleType road_veh_type, bool drive_through, StationID station_id);
00449 };
00450
00451 #endif