truelight@9638: /* $Id$ */
truelight@9638: 
truebrain@9833: /** @file ai_station.cpp Implementation of AIStation. */
truelight@9638: 
truelight@9638: #include "ai_station.hpp"
truelight@9638: #include "ai_cargo.hpp"
truebrain@9814: #include "ai_map.hpp"
truelight@9670: #include "../../debug.h"
truelight@9666: #include "../../station_map.h"
truelight@9670: #include "../../variables.h"
rubidium@9723: #include "../../strings_func.h"
rubidium@9723: #include "../../core/alloc_func.hpp"
rubidium@9724: #include "../../player_func.h"
rubidium@9724: #include "../../settings_type.h"
truelight@9696: #include "table/strings.h"
truelight@9638: 
truelight@9638: /* static */ bool AIStation::IsValidStation(StationID station_id)
truelight@9638: {
truelight@9638: 	return ::IsValidStationID(station_id) && ::GetStation(station_id)->owner == _current_player;
truelight@9638: }
truelight@9638: 
truelight@9666: /* static */ StationID AIStation::GetStationID(TileIndex tile)
truelight@9666: {
truelight@9666: 	if (!::IsTileType(tile, MP_STATION)) return INVALID_STATION;
truelight@9666: 	return ::GetStationIndex(tile);
truelight@9666: }
truelight@9666: 
truelight@9696: /* static */ char *AIStation::GetName(StationID station_id)
truelight@9696: {
truebrain@9736: 	if (!IsValidStation(station_id)) return NULL;
truelight@9696: 
truelight@9696: 	static const int len = 64;
truelight@9696: 	char *station_name = MallocT<char>(len);
truelight@9696: 
truebrain@9736: 	::SetDParam(0, GetStation(station_id)->index);
truebrain@9736: 	::GetString(station_name, STR_STATION, &station_name[len - 1]);
truelight@9696: 	return station_name;
truelight@9696: }
truelight@9696: 
truelight@9638: /* static */ TileIndex AIStation::GetLocation(StationID station_id)
truelight@9638: {
truebrain@9736: 	if (!IsValidStation(station_id)) return INVALID_TILE;
truelight@9638: 
truelight@9638: 	return ::GetStation(station_id)->xy;
truelight@9638: }
truelight@9638: 
truelight@9638: /* static */ int32 AIStation::GetCargoWaiting(StationID station_id, CargoID cargo_id)
truelight@9638: {
truebrain@9736: 	if (!IsValidStation(station_id)) return -1;
truelight@9638: 	if (!AICargo::IsValidCargo(cargo_id)) return -1;
truelight@9638: 
truelight@9638: 	return ::GetStation(station_id)->goods[cargo_id].cargo.Count();
truelight@9638: }
truelight@9648: 
truelight@9648: /* static */ int32 AIStation::GetCargoRating(StationID station_id, CargoID cargo_id)
truelight@9648: {
truebrain@9736: 	if (!IsValidStation(station_id)) return -1;
truelight@9648: 	if (!AICargo::IsValidCargo(cargo_id)) return -1;
truelight@9648: 
truelight@9648: 	return ::GetStation(station_id)->goods[cargo_id].rating * 101 >> 8;
truelight@9648: }
truelight@9670: 
truelight@9670: /* static */ int32 AIStation::GetCoverageRadius(AIStation::StationType type)
truelight@9670: {
truelight@9670: 	if (type == STATION_AIRPORT) {
truelight@9670: 		DEBUG(ai, 0, "GetCoverageRadius(): coverage radius of airports needs to be requested via AIAirport::GetAirportCoverageRadius(), as it requires AirportType");
truelight@9670: 		return 0;
truelight@9670: 	}
glx@9732: 	if (!_patches.modified_catchment) return CA_UNMODIFIED;
truelight@9670: 
truelight@9670: 	switch (type) {
truelight@9670: 		case STATION_TRAIN:      return CA_TRAIN;
truelight@9670: 		case STATION_TRUCK_STOP: return CA_TRUCK;
truelight@9670: 		case STATION_BUS_STOP:   return CA_BUS;
truelight@9670: 		case STATION_DOCK:       return CA_DOCK;
truelight@9670: 		default:                 return CA_NONE;
truelight@9670: 	}
truelight@9670: }
truebrain@9814: 
truebrain@9814: /* static */ int32 AIStation::GetDistanceManhattanToTile(StationID station_id, TileIndex tile)
truebrain@9814: {
truebrain@9814: 	return AIMap::DistanceManhattan(tile, GetLocation(station_id));
truebrain@9814: }
truebrain@9814: 
truebrain@9814: /* static */ int32 AIStation::GetDistanceSquareToTile(StationID station_id, TileIndex tile)
truebrain@9814: {
truebrain@9814: 	return AIMap::DistanceSquare(tile, GetLocation(station_id));
truebrain@9814: }