Function UpdateStationAcceptance

src/station_cmd.cpp:611–657

* Update the acceptance for a station. * @param st Station to update * @param show_msg controls whether to display a message that acceptance was changed. */

 * @param show_msg controls whether to display a message that acceptance was changed.
 */
void UpdateStationAcceptance(Station *st, bool show_msg)
{
	/* old accepted goods types */
	CargoTypes old_acc = GetAcceptanceMask(st);

	/* And retrieve the acceptance. */
	CargoArray acceptance{};
	if (!st->rect.IsEmpty()) {
		acceptance = GetAcceptanceAroundStation(st, &st->always_accepted);
	}

	/* Adjust in case our station only accepts fewer kinds of goods */
	for (CargoType cargo = 0; cargo < NUM_CARGO; ++cargo) {
		uint amt = acceptance[cargo];

		/* Make sure the station can accept the goods type. */
		bool is_passengers = IsCargoInClass(cargo, CargoClass::Passengers);
		if ((!is_passengers && !st->facilities.Any({StationFacility::Train, StationFacility::TruckStop, StationFacility::Airport, StationFacility::Dock})) ||
				(is_passengers && !st->facilities.Any({StationFacility::Train, StationFacility::BusStop, StationFacility::Airport, StationFacility::Dock}))) {
			amt = 0;
		}

		GoodsEntry &ge = st->goods[cargo];
		ge.status.Set(GoodsEntry::State::Acceptance, amt >= 8);
		if (LinkGraph::IsValidID(ge.link_graph)) {
			(*LinkGraph::Get(ge.link_graph))[ge.node].SetDemand(amt / 8);
		}
	}

	/* Only show a message in case the acceptance was actually changed. */
	CargoTypes new_acc = GetAcceptanceMask(st);
	if (old_acc == new_acc) return;

	/* show a message to report that the acceptance was changed? */
	if (show_msg && st->owner == _local_company && st->IsInUse()) {
		/* Combine old and new masks to get changes */
		CargoTypes accepts = new_acc & ~old_acc;
		CargoTypes rejects = ~new_acc & old_acc;

		/* Show news message if there are any changes */
		if (accepts != 0) ShowRejectOrAcceptNews(st, accepts, false);
		if (rejects != 0) ShowRejectOrAcceptNews(st, rejects, true);
	}

	/* redraw the station view since acceptance changed */
	SetWindowWidgetDirty(WC_STATION_VIEW, st->index, WID_SV_ACCEPT_RATING_LIST);
}

static void UpdateStationSignCoord(BaseStation *st)
{