Function GetRailTypes

src/rail.cpp:166–187

* Get list of rail types, regardless of company availability. * @param introduces If true, include rail types introduced by other rail types * @return the rail types. */

 * @return the rail types.
 */
RailTypes GetRailTypes(bool introduces)
{
	RailTypes rts{};

	for (const Engine *e : Engine::IterateType(VEH_TRAIN)) {
		const EngineInfo *ei = &e->info;
		if (!ei->climates.Test(_settings_game.game_creation.landscape)) continue;

		const RailVehicleInfo *rvi = &e->VehInfo<RailVehicleInfo>();
		if (rvi->railveh_type != RAILVEH_WAGON) {
			assert(rvi->railtypes.Any());
			if (introduces) {
				rts.Set(GetAllIntroducesRailTypes(rvi->railtypes));
			} else {
				rts.Set(rvi->railtypes);
			}
		}
	}

	if (introduces) return AddDateIntroducedRailTypes(rts, CalendarTime::MAX_DATE);
	return rts;
}

/**
 * Get the rail type for a given label.