Function GetTileCatchmentRadius

src/station.cpp:311–337

* Get the catchment size of an individual station tile. * @param tile Station tile to get catchment size of. * @param st Associated station of station tile. * @pre IsTileType(tile, MP_STATION) * @return The catchment size of the station tile. */

 * @return The catchment size of the station tile.
 */
static uint GetTileCatchmentRadius(TileIndex tile, const Station *st)
{
	assert(IsTileType(tile, MP_STATION));

	if (_settings_game.station.modified_catchment) {
		switch (GetStationType(tile)) {
			case StationType::Rail:    return CA_TRAIN;
			case StationType::Oilrig:  return CA_UNMODIFIED;
			case StationType::Airport: return st->airport.GetSpec()->catchment;
			case StationType::Truck:   return CA_TRUCK;
			case StationType::Bus:     return CA_BUS;
			case StationType::Dock:    return CA_DOCK;

			default: NOT_REACHED();
			case StationType::Buoy:
			case StationType::RailWaypoint:
			case StationType::RoadWaypoint: return CA_NONE;
		}
	} else {
		switch (GetStationType(tile)) {
			default:               return CA_UNMODIFIED;
			case StationType::Buoy:
			case StationType::RailWaypoint:
			case StationType::RoadWaypoint: return CA_NONE;
		}
	}
}

/**
 * Determines the catchment radius of the station