155 lines
5.1 KiB
C++
155 lines
5.1 KiB
C++
/* $Id$ */
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/*
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* This file is part of OpenTTD.
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* 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.
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* 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.
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* 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/>.
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*/
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/** @file ai_airport.cpp Implementation of AIAirport. */
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#include "ai_airport.hpp"
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#include "ai_station.hpp"
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#include "../../station_base.h"
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#include "../../company_func.h"
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#include "../../command_type.h"
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#include "../../town.h"
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#include "../../economy_func.h"
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/* static */ bool AIAirport::IsValidAirportType(AirportType type)
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{
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return IsAirportInformationAvailable(type) && ::GetAirport(type)->IsAvailable();
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}
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/* static */ bool AIAirport::IsAirportInformationAvailable(AirportType type)
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{
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return type >= 0 && type < (AirportType)NUM_AIRPORTS;
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}
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/* static */ Money AIAirport::GetPrice(AirportType type)
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{
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if (!IsValidAirportType(type)) return -1;
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const AirportFTAClass *afc = ::GetAirport(type);
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return _price.build_airport * afc->size_x * afc->size_y;
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}
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/* static */ bool AIAirport::IsHangarTile(TileIndex tile)
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{
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if (!::IsValidTile(tile)) return false;
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return ::IsTileType(tile, MP_STATION) && ::IsHangar(tile);
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}
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/* static */ bool AIAirport::IsAirportTile(TileIndex tile)
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{
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if (!::IsValidTile(tile)) return false;
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return ::IsTileType(tile, MP_STATION) && ::IsAirport(tile);
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}
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/* static */ int32 AIAirport::GetAirportWidth(AirportType type)
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{
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if (!IsAirportInformationAvailable(type)) return -1;
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return ::GetAirport(type)->size_x;
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}
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/* static */ int32 AIAirport::GetAirportHeight(AirportType type)
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{
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if (!IsAirportInformationAvailable(type)) return -1;
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return ::GetAirport(type)->size_y;
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}
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/* static */ int32 AIAirport::GetAirportCoverageRadius(AirportType type)
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{
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if (!IsAirportInformationAvailable(type)) return -1;
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return _settings_game.station.modified_catchment ? ::GetAirport(type)->catchment : (uint)CA_UNMODIFIED;
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}
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/* static */ bool AIAirport::BuildAirport(TileIndex tile, AirportType type, StationID station_id)
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{
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EnforcePrecondition(false, ::IsValidTile(tile));
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EnforcePrecondition(false, IsValidAirportType(type));
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EnforcePrecondition(false, station_id == AIStation::STATION_NEW || station_id == AIStation::STATION_JOIN_ADJACENT || AIStation::IsValidStation(station_id));
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uint p2 = station_id == AIStation::STATION_JOIN_ADJACENT ? 0 : 1;
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p2 |= (AIStation::IsValidStation(station_id) ? station_id : INVALID_STATION) << 16;
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return AIObject::DoCommand(tile, type, p2, CMD_BUILD_AIRPORT);
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}
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/* static */ bool AIAirport::RemoveAirport(TileIndex tile)
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{
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EnforcePrecondition(false, ::IsValidTile(tile))
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EnforcePrecondition(false, IsAirportTile(tile) || IsHangarTile(tile));
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return AIObject::DoCommand(tile, 0, 0, CMD_LANDSCAPE_CLEAR);
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}
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/* static */ int32 AIAirport::GetNumHangars(TileIndex tile)
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{
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if (!::IsValidTile(tile)) return -1;
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if (!::IsTileType(tile, MP_STATION)) return -1;
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const Station *st = ::Station::GetByTile(tile);
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if (st->owner != _current_company) return -1;
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if ((st->facilities & FACIL_AIRPORT) == 0) return -1;
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return st->Airport()->nof_depots;
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}
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/* static */ TileIndex AIAirport::GetHangarOfAirport(TileIndex tile)
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{
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if (!::IsValidTile(tile)) return INVALID_TILE;
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if (!::IsTileType(tile, MP_STATION)) return INVALID_TILE;
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if (GetNumHangars(tile) < 1) return INVALID_TILE;
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const Station *st = ::Station::GetByTile(tile);
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if (st->owner != _current_company) return INVALID_TILE;
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if ((st->facilities & FACIL_AIRPORT) == 0) return INVALID_TILE;
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return ::ToTileIndexDiff(st->Airport()->airport_depots[0]) + st->airport_tile;
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}
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/* static */ AIAirport::AirportType AIAirport::GetAirportType(TileIndex tile)
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{
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if (!AITile::IsStationTile(tile)) return AT_INVALID;
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StationID station_id = ::GetStationIndex(tile);
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if (!AIStation::HasStationType(station_id, AIStation::STATION_AIRPORT)) return AT_INVALID;
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return (AirportType)::Station::Get(station_id)->airport_type;
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}
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/* static */ int AIAirport::GetNoiseLevelIncrease(TileIndex tile, AirportType type)
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{
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extern Town *AirportGetNearestTown(const AirportFTAClass *afc, TileIndex airport_tile);
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extern uint8 GetAirportNoiseLevelForTown(const AirportFTAClass *afc, TileIndex town_tile, TileIndex tile);
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if (!::IsValidTile(tile)) return -1;
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if (!IsValidAirportType(type)) return -1;
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if (_settings_game.economy.station_noise_level) {
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const AirportFTAClass *afc = ::GetAirport(type);
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const Town *t = AirportGetNearestTown(afc, tile);
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return GetAirportNoiseLevelForTown(afc, t->xy, tile);
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}
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return 1;
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}
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/* static */ TownID AIAirport::GetNearestTown(TileIndex tile, AirportType type)
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{
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extern Town *AirportGetNearestTown(const AirportFTAClass *afc, TileIndex airport_tile);
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if (!::IsValidTile(tile)) return INVALID_TOWN;
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if (!IsAirportInformationAvailable(type)) return INVALID_TOWN;
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return AirportGetNearestTown(GetAirport(type), tile)->index;
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}
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