Function AirportMaintenanceCost

src/station.cpp:713–724

* Calculates the maintenance cost of all airports of a company. * @param owner Company. * @return Total cost. */

 * @return Total cost.
 */
Money AirportMaintenanceCost(Owner owner)
{
	Money total_cost = 0;

	for (const Station *st : Station::Iterate()) {
		if (st->owner == owner && st->facilities.Test(StationFacility::Airport)) {
			total_cost += _price[PR_INFRASTRUCTURE_AIRPORT] * st->airport.GetSpec()->maintenance_cost;
		}
	}
	/* 3 bits fraction for the maintenance cost factor. */
	return total_cost >> 3;
}

bool StationCompare::operator() (const Station *lhs, const Station *rhs) const
{