Method RecalcDestinations

src/station_gui.cpp:1493–1516

* Rebuild the cache for estimated destinations which is used to quickly show the "destination" entries * even if we actually don't know the destination of a certain packet from just looking at it. * @param i Cargo to recalculate the cache for. */

	 * @param i Cargo to recalculate the cache for.
	 */
	void RecalcDestinations(CargoType cargo)
	{
		const Station *st = Station::Get(this->window_number);
		CargoDataEntry &entry = cached_destinations.InsertOrRetrieve(cargo);
		entry.Clear();

		if (!st->goods[cargo].HasData()) return;

		for (const auto &it : st->goods[cargo].GetData().flows) {
			StationID from = it.first;
			CargoDataEntry &source_entry = entry.InsertOrRetrieve(from);
			uint32_t prev_count = 0;
			for (const auto &flow_it : *it.second.GetShares()) {
				StationID via = flow_it.second;
				CargoDataEntry &via_entry = source_entry.InsertOrRetrieve(via);
				if (via == this->window_number) {
					via_entry.InsertOrRetrieve(via).Update(flow_it.first - prev_count);
				} else {
					EstimateDestinations(cargo, from, via, flow_it.first - prev_count, via_entry);
				}
				prev_count = flow_it.first;
			}
		}
	}

	/**
	 * Estimate the amounts of cargo per final destination for a given cargo, source station and next hop and