Function BuildTownHouse

src/town_cmd.cpp:2775–2806

* Build a house at this tile. * @param t The town the house will belong to. * @param tile The tile to try building on. * @param hs The @a HouseSpec of the house. * @param house The @a HouseID of the house. * @param random_bits The random data to be associated with the house. * @param house_completed Should the house be placed already complete, instead of under construction? * @param is_prot

 * @param is_protected Whether the house is protected from the town upgrading it.
 */
static void BuildTownHouse(Town *t, TileIndex tile, const HouseSpec *hs, HouseID house, uint8_t random_bits, bool house_completed, bool is_protected)
{
	/* build the house */
	t->cache.num_houses++;

	uint8_t construction_counter = 0;
	uint8_t construction_stage = 0;

	if (_generating_world || _game_mode == GM_EDITOR || house_completed) {
		uint32_t construction_random = Random();

		construction_stage = TOWN_HOUSE_COMPLETED;
		if (_generating_world && !hs->extra_flags.Test(HouseExtraFlag::BuildingIsHistorical) && Chance16(1, 7)) construction_stage = GB(construction_random, 0, 2);

		if (construction_stage == TOWN_HOUSE_COMPLETED) {
			ChangePopulation(t, hs->population);
		} else {
			construction_counter = GB(construction_random, 2, 2);
		}
	}

	MakeTownHouse(tile, t, construction_counter, construction_stage, house, random_bits, is_protected);
	UpdateTownRadius(t);
	UpdateTownGrowthRate(t);

	BuildingFlags size = hs->building_flags;

	TriggerHouseAnimation_ConstructionStageChanged(tile, true);
	if (size.Any(BUILDING_2_TILES_Y)) TriggerHouseAnimation_ConstructionStageChanged(tile + TileDiffXY(0, 1), true);
	if (size.Any(BUILDING_2_TILES_X)) TriggerHouseAnimation_ConstructionStageChanged(tile + TileDiffXY(1, 0), true);
	if (size.Any(BUILDING_HAS_4_TILES)) TriggerHouseAnimation_ConstructionStageChanged(tile + TileDiffXY(1, 1), true);
}

/**
 * Tries to build a house at this tile.