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Diffstat (limited to 'src/script/api/script_station.hpp')
| -rw-r--r-- | src/script/api/script_station.hpp | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/src/script/api/script_station.hpp b/src/script/api/script_station.hpp new file mode 100644 index 000000000..b9266c7d3 --- /dev/null +++ b/src/script/api/script_station.hpp @@ -0,0 +1,158 @@ +/* $Id$ */ + +/* + * This file is part of OpenTTD. + * 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. + * 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. + * 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/>. + */ + +/** @file script_station.hpp Everything to query and build stations. */ + +#ifndef SCRIPT_STATION_HPP +#define SCRIPT_STATION_HPP + +#include "script_road.hpp" +#include "script_basestation.hpp" + +/** + * Class that handles all station related functions. + */ +class AIStation : public AIBaseStation { +public: + /** + * All station related error messages. + */ + enum ErrorMessages { + /** Base for station related errors */ + ERR_STATION_BASE = AIError::ERR_CAT_STATION << AIError::ERR_CAT_BIT_SIZE, + + /** The station is build too close to another station, airport or dock */ + ERR_STATION_TOO_CLOSE_TO_ANOTHER_STATION, // [STR_ERROR_TOO_CLOSE_TO_ANOTHER_AIRPORT, STR_ERROR_TOO_CLOSE_TO_ANOTHER_STATION, STR_ERROR_TOO_CLOSE_TO_ANOTHER_DOCK] + + /** There are too many stations, airports and docks in the game */ + ERR_STATION_TOO_MANY_STATIONS, // [STR_ERROR_TOO_MANY_STATIONS_LOADING, STR_ERROR_TOO_MANY_TRUCK_STOPS, STR_ERROR_TOO_MANY_BUS_STOPS] + + /** There are too many stations, airports of docks in a town */ + ERR_STATION_TOO_MANY_STATIONS_IN_TOWN, // [STR_ERROR_LOCAL_AUTHORITY_REFUSES_AIRPORT] + }; + + /** + * Type of stations known in the game. + */ + enum StationType { + /* Values are important, as they represent the internal state of the game. */ + STATION_TRAIN = 0x01, ///< Train station + STATION_TRUCK_STOP = 0x02, ///< Truck station + STATION_BUS_STOP = 0x04, ///< Bus station + STATION_AIRPORT = 0x08, ///< Airport + STATION_DOCK = 0x10, ///< Dock + STATION_ANY = 0x1F, ///< All station types + }; + + /** + * Checks whether the given station is valid and owned by you. + * @param station_id The station to check. + * @return True if and only if the station is valid. + */ + static bool IsValidStation(StationID station_id); + + /** + * Get the StationID of a tile, if there is a station. + * @param tile The tile to find the stationID of + * @return StationID of the station. + * @post Use IsValidStation() to see if the station is valid. + */ + static StationID GetStationID(TileIndex tile); + + /** + * See how much cargo there is waiting on a station. + * @param station_id The station to get the cargo-waiting of. + * @param cargo_id The cargo to get the cargo-waiting of. + * @pre IsValidStation(station_id). + * @pre IsValidCargo(cargo_id). + * @return The amount of units waiting at the station. + */ + static int32 GetCargoWaiting(StationID station_id, CargoID cargo_id); + + /** + * See how high the rating is of a cargo on a station. + * @param station_id The station to get the cargo-rating of. + * @param cargo_id The cargo to get the cargo-rating of. + * @pre IsValidStation(station_id). + * @pre IsValidCargo(cargo_id). + * @return The rating in percent of the cargo on the station. + */ + static int32 GetCargoRating(StationID station_id, CargoID cargo_id); + + /** + * Get the coverage radius of this type of station. + * @param station_type The type of station. + * @return The radius in tiles. + */ + static int32 GetCoverageRadius(AIStation::StationType station_type); + + /** + * Get the manhattan distance from the tile to the AIStation::GetLocation() + * of the station. + * @param station_id The station to get the distance to. + * @param tile The tile to get the distance to. + * @pre IsValidStation(station_id). + * @return The distance between station and tile. + */ + static int32 GetDistanceManhattanToTile(StationID station_id, TileIndex tile); + + /** + * Get the square distance from the tile to the AIStation::GetLocation() + * of the station. + * @param station_id The station to get the distance to. + * @param tile The tile to get the distance to. + * @pre IsValidStation(station_id). + * @return The distance between station and tile. + */ + static int32 GetDistanceSquareToTile(StationID station_id, TileIndex tile); + + /** + * Find out if this station is within the rating influence of a town. + * The service quality of stations with signs within this radius + * influences the rating of the town. + * @param station_id The station to check. + * @param town_id The town to check. + * @return True if the tile is within the rating influence of the town. + */ + static bool IsWithinTownInfluence(StationID station_id, TownID town_id); + + /** + * Check if any part of the station contains a station of the type + * StationType + * @param station_id The station to look at. + * @param station_type The StationType to look for. + * @return True if the station has a station part of the type StationType. + */ + static bool HasStationType(StationID station_id, StationType station_type); + + /** + * Check if any part of the station contains a station of the type + * RoadType. + * @param station_id The station to look at. + * @param road_type The RoadType to look for. + * @return True if the station has a station part of the type RoadType. + */ + static bool HasRoadType(StationID station_id, AIRoad::RoadType road_type); + + /** + * Get the town that was nearest to the given station when the station was built. + * @param station_id The station to look at. + * @return The TownID of the town whose center tile was closest to the station + * at the time the station was built. + * @note There is no guarantee that the station is even near the returned town + * nor that the returns town is closest to the station now. A station that was + * 'walked' to the other end of the map will still return the same town. Also, + * towns grow, towns change. So don't depend on this value too much. + */ + static TownID GetNearestTown(StationID station_id); +}; + +DECLARE_ENUM_AS_BIT_SET(AIStation::StationType) + +#endif /* SCRIPT_STATION_HPP */ |