Function GetArticulatedRefitMasks

src/articulated_vehicles.cpp:222–240

* Merges the refit_masks of all articulated parts. * @param engine the first part * @param include_initial_cargo_type if true the default cargo type of the vehicle is included; if false only the refit_mask * @param union_mask returns bit mask of CargoTypes which are a refit option for at least one articulated part * @param intersection_mask returns bit mask of CargoTypes which are a refit opti

 * @param intersection_mask returns bit mask of CargoTypes which are a refit option for every articulated part (with default capacity > 0)
 */
void GetArticulatedRefitMasks(EngineID engine, bool include_initial_cargo_type, CargoTypes *union_mask, CargoTypes *intersection_mask)
{
	const Engine *e = Engine::Get(engine);
	CargoTypes veh_cargoes = GetAvailableVehicleCargoTypes(engine, include_initial_cargo_type);
	*union_mask = veh_cargoes;
	*intersection_mask = (veh_cargoes != 0) ? veh_cargoes : ALL_CARGOTYPES;

	if (!e->IsGroundVehicle()) return;
	if (!e->info.callback_mask.Test(VehicleCallbackMask::ArticEngine)) return;

	for (uint i = 1; i < MAX_ARTICULATED_PARTS; i++) {
		EngineID artic_engine = GetNextArticulatedPart(i, engine);
		if (artic_engine == EngineID::Invalid()) break;

		veh_cargoes = GetAvailableVehicleCargoTypes(artic_engine, include_initial_cargo_type);
		*union_mask |= veh_cargoes;
		if (veh_cargoes != 0) *intersection_mask &= veh_cargoes;
	}
}

/**
 * Ors the refit_masks of all articulated parts.