Function UpdateAllServiceInterval

src/settings_table.cpp:195–238

* Check and update if needed all vehicle service intervals. * @param new_value Contains 0 if service intervals are in time (days or real-world minutes), otherwise intervals use percents. */

 * @param new_value Contains 0 if service intervals are in time (days or real-world minutes), otherwise intervals use percents.
 */
static void UpdateAllServiceInterval(int32_t new_value)
{
	bool update_vehicles;
	VehicleDefaultSettings *vds;
	if (_game_mode == GM_MENU || !Company::IsValidID(_current_company)) {
		vds = &_settings_client.company.vehicle;
		update_vehicles = false;
	} else {
		vds = &Company::Get(_current_company)->settings.vehicle;
		update_vehicles = true;
	}

	if (new_value != 0) {
		/* Service intervals are in percents. */
		vds->servint_trains   = DEF_SERVINT_PERCENT;
		vds->servint_roadveh  = DEF_SERVINT_PERCENT;
		vds->servint_aircraft = DEF_SERVINT_PERCENT;
		vds->servint_ships    = DEF_SERVINT_PERCENT;
	} else if (TimerGameEconomy::UsingWallclockUnits(_game_mode == GM_MENU)) {
		/* Service intervals are in minutes. */
		vds->servint_trains   = DEF_SERVINT_MINUTES_TRAINS;
		vds->servint_roadveh  = DEF_SERVINT_MINUTES_ROADVEH;
		vds->servint_aircraft = DEF_SERVINT_MINUTES_AIRCRAFT;
		vds->servint_ships    = DEF_SERVINT_MINUTES_SHIPS;
	} else {
		/* Service intervals are in days. */
		vds->servint_trains   = DEF_SERVINT_DAYS_TRAINS;
		vds->servint_roadveh  = DEF_SERVINT_DAYS_ROADVEH;
		vds->servint_aircraft = DEF_SERVINT_DAYS_AIRCRAFT;
		vds->servint_ships    = DEF_SERVINT_DAYS_SHIPS;
	}

	if (update_vehicles) {
		const Company *c = Company::Get(_current_company);
		for (Vehicle *v : Vehicle::Iterate()) {
			if (v->owner == _current_company && v->IsPrimaryVehicle() && !v->ServiceIntervalIsCustom()) {
				v->SetServiceInterval(CompanyServiceInterval(c, v->type));
				v->SetServiceIntervalIsPercent(new_value != 0);
			}
		}
	}

	SetWindowClassesDirty(WC_VEHICLE_DETAILS);
}

static bool CanUpdateServiceInterval(VehicleType, int32_t &new_value)
{