Function SetPartOfSubsidyFlag

src/subsidy.cpp:93–100

* Sets a flag indicating that given town/industry is part of subsidised route. * @param source actual source * @param flag flag to set */

 * @param flag flag to set
 */
static inline void SetPartOfSubsidyFlag(Source source, PartOfSubsidy flag)
{
	switch (source.type) {
		case SourceType::Industry: Industry::Get(source.ToIndustryID())->part_of_subsidy.Set(flag); return;
		case SourceType::Town: Town::Get(source.ToTownID())->cache.part_of_subsidy.Set(flag); return;
		default: NOT_REACHED();
	}
}

/** Perform a full rebuild of the subsidies cache. */
void RebuildSubsidisedSourceAndDestinationCache()