Function NewHouseTileLoop

src/newgrf_house.cpp:624–660

}

bool NewHouseTileLoop(TileIndex tile)
{
	const HouseSpec *hs = HouseSpec::Get(GetHouseType(tile));

	if (GetHouseProcessingTime(tile) > 0) {
		DecHouseProcessingTime(tile);
		return true;
	}

	TriggerHouseRandomisation(tile, HouseRandomTrigger::TileLoop);
	if (hs->building_flags.Any(BUILDING_HAS_1_TILE)) TriggerHouseRandomisation(tile, HouseRandomTrigger::TileLoopNorth);

	/* Call the unsynchronized tile loop trigger */
	TriggerHouseAnimation_TileLoop(tile, false, 0);

	/* Call the synchronized tile loop trigger, if this is the north tile */
	if (hs->building_flags.Any(BUILDING_HAS_1_TILE)) {
		uint16_t random = GB(Random(), 0, 16);
		TriggerHouseAnimation_TileLoop(tile, true, random);
		if (hs->building_flags.Any(BUILDING_2_TILES_Y)) TriggerHouseAnimation_TileLoop(TileAddXY(tile, 0, 1), true, random);
		if (hs->building_flags.Any(BUILDING_2_TILES_X)) TriggerHouseAnimation_TileLoop(TileAddXY(tile, 1, 0), true, random);
		if (hs->building_flags.Any(BUILDING_HAS_4_TILES)) TriggerHouseAnimation_TileLoop(TileAddXY(tile, 1, 1), true, random);
	}

	/* Check callback 21, which determines if a house should be destroyed. */
	if (hs->callback_mask.Test(HouseCallbackMask::Destruction)) {
		uint16_t callback_res = GetHouseCallback(CBID_HOUSE_DESTRUCTION, 0, 0, GetHouseType(tile), Town::GetByTile(tile), tile);
		if (callback_res != CALLBACK_FAILED && Convert8bitBooleanCallback(hs->grf_prop.grffile, CBID_HOUSE_DESTRUCTION, callback_res)) {
			ClearTownHouse(Town::GetByTile(tile), tile);
			return false;
		}
	}

	SetHouseProcessingTime(tile, hs->processing_time);
	MarkTileDirtyByTile(tile);
	return true;
}

static void DoTriggerHouseRandomisation(TileIndex tile, HouseRandomTrigger trigger, uint8_t base_random, bool first)
{