Function GetCompanyRoadTypes

src/road.cpp:210–231

* Get the road types the given company can build. * @param company the company to get the road types for. * @param introduces If true, include road types introduced by other road types * @return the road types. */

 * @return the road types.
 */
RoadTypes GetCompanyRoadTypes(CompanyID company, bool introduces)
{
	RoadTypes rts{};

	for (const Engine *e : Engine::IterateType(VEH_ROAD)) {
		const EngineInfo *ei = &e->info;

		if (ei->climates.Test(_settings_game.game_creation.landscape) &&
				(e->company_avail.Test(company) || TimerGameCalendar::date >= e->intro_date + CalendarTime::DAYS_IN_YEAR)) {
			const RoadVehicleInfo *rvi = &e->VehInfo<RoadVehicleInfo>();
			assert(rvi->roadtype < ROADTYPE_END);
			if (introduces) {
				rts.Set(GetRoadTypeInfo(rvi->roadtype)->introduces_roadtypes);
			} else {
				rts.Set(rvi->roadtype);
			}
		}
	}

	if (introduces) return AddDateIntroducedRoadTypes(rts, TimerGameCalendar::date);
	return rts;
}

/**
 * Get list of road types, regardless of company availability.