truelight@9654: /* $Id$ */
truelight@9654: 
truebrain@9833: /** @file ai_airport.cpp Implementation of AIAirport. */
rubidium@9820: 
truelight@9654: #include "ai_airport.hpp"
rubidium@9866: #include "ai_error.hpp"
rubidium@9837: #include "../../openttd.h"
truelight@9670: #include "../../variables.h"
truelight@9654: #include "../../station_map.h"
rubidium@9724: #include "../../player_func.h"
rubidium@9724: #include "../../settings_type.h"
truelight@9654: 
truelight@9670: /* static */ bool AIAirport::IsHangarTile(TileIndex tile)
truelight@9654: {
truebrain@9801: 	if (!::IsValidTile(tile)) return false;
truelight@9654: 
truelight@9654: 	return ::IsTileType(tile, MP_STATION) && ::IsHangar(tile);
truelight@9654: }
truelight@9654: 
truelight@9670: /* static */ bool AIAirport::IsAirportTile(TileIndex tile)
truelight@9654: {
truebrain@9801: 	if (!::IsValidTile(tile)) return false;
truelight@9654: 
truelight@9654: 	return ::IsTileType(tile, MP_STATION) && ::IsAirport(tile);
truelight@9654: }
truelight@9654: 
truebrain@9773: /* static */ bool AIAirport::AirportAvailable(AirportType type)
truelight@9654: {
truebrain@10194: 	if (type > AT_HELISTATION) return false;
rubidium@9722: 	return HasBit(::GetValidAirports(), type);
truelight@9654: }
truelight@9654: 
truelight@9670: /* static */ int32 AIAirport::GetAirportWidth(AirportType type)
truelight@9670: {
truebrain@10194: 	if (type > AT_HELISTATION) return -1;
truebrain@9736: 	return ::GetAirport(type)->size_x;
truelight@9670: }
truelight@9670: 
truelight@9670: /* static */ int32 AIAirport::GetAirportHeight(AirportType type)
truelight@9670: {
truebrain@10194: 	if (type > AT_HELISTATION) return -1;
truebrain@9736: 	return ::GetAirport(type)->size_y;
truelight@9670: }
truelight@9670: 
truelight@9670: /* static */ int32 AIAirport::GetAirportCoverageRadius(AirportType type)
truelight@9670: {
truebrain@10194: 	if (type > AT_HELISTATION) return -1;
truebrain@9736: 	return _patches.modified_catchment ? ::GetAirport(type)->catchment : (uint)CA_UNMODIFIED;
truelight@9670: }
truelight@9670: 
truebrain@9737: /* static */ bool AIAirport::BuildAirport(TileIndex tile, AirportType type)
truelight@9654: {
rubidium@9868: 	EnforcePrecondition(false, ::IsValidTile(tile));
rubidium@9868: 	EnforcePrecondition(false, type <= AT_HELISTATION);
truebrain@9737: 	return AIObject::DoCommand(tile, type, 0, CMD_BUILD_AIRPORT);
truelight@9654: }
truelight@9654: 
truebrain@9737: /* static */ bool AIAirport::RemoveAirport(TileIndex tile)
truelight@9654: {
rubidium@9868: 	EnforcePrecondition(false, ::IsValidTile(tile))
rubidium@9868: 	EnforcePrecondition(false, IsAirportTile(tile) || IsHangarTile(tile));
truebrain@9737: 	return AIObject::DoCommand(tile, 0, 0, CMD_LANDSCAPE_CLEAR);
truelight@9654: }
truelight@9654: 
truebrain@9737: /* static */ TileIndex AIAirport::GetHangarOfAirport(TileIndex tile)
truelight@9654: {
truebrain@9736: 	if (!::IsTileType(tile, MP_STATION)) return INVALID_TILE;
truelight@9654: 
truebrain@9736: 	const Station *st = ::GetStationByTile(tile);
truelight@9654: 	if (st->owner != _current_player) return INVALID_TILE;
truelight@9654: 
truebrain@9736: 	return ::ToTileIndexDiff(st->Airport()->airport_depots[0]) + st->xy;
truelight@9654: }