Function DoCreateTown

src/town_cmd.cpp:2036–2111

* Actually create a town. * * @param t The town. * @param tile Where to put it. * @param townnameparts The town name. * @param size The preset size of the town. * @param city Should we create a city? * @param layout The road layout of the town. * @param manual Was the town placed manually? */

 * @param manual Was the town placed manually?
 */
static void DoCreateTown(Town *t, TileIndex tile, uint32_t townnameparts, TownSize size, bool city, TownLayout layout, bool manual)
{
	AutoRestoreBackup backup(_generating_town, true);

	t->xy = tile;
	t->cache.num_houses = 0;
	t->time_until_rebuild = 10;
	UpdateTownRadius(t);
	t->flags.Reset();
	t->cache.population = 0;
	InitializeBuildingCounts(t);
	/* Spread growth across ticks so even if there are many
	 * similar towns they're unlikely to grow all in one tick */
	t->grow_counter = t->index % Ticks::TOWN_GROWTH_TICKS;
	t->growth_rate = TownTicksToGameTicks(250);
	t->show_zone = false;

	_town_kdtree.Insert(t->index);

	/* Set the default cargo requirement for town growth */
	switch (_settings_game.game_creation.landscape) {
		case LandscapeType::Arctic:
			if (FindFirstCargoWithTownAcceptanceEffect(TAE_FOOD) != nullptr) t->goal[TAE_FOOD] = TOWN_GROWTH_WINTER;
			break;

		case LandscapeType::Tropic:
			if (FindFirstCargoWithTownAcceptanceEffect(TAE_FOOD) != nullptr) t->goal[TAE_FOOD] = TOWN_GROWTH_DESERT;
			if (FindFirstCargoWithTownAcceptanceEffect(TAE_WATER) != nullptr) t->goal[TAE_WATER] = TOWN_GROWTH_DESERT;
			break;

		default:
			break;
	}

	t->fund_buildings_months = 0;

	for (uint i = 0; i != MAX_COMPANIES; i++) t->ratings[i] = RATING_INITIAL;

	t->have_ratings = {};
	t->exclusivity = CompanyID::Invalid();
	t->exclusive_counter = 0;
	t->statues = {};

	{
		TownNameParams tnp(_settings_game.game_creation.town_name);
		t->townnamegrfid = tnp.grfid;
		t->townnametype = tnp.type;
	}
	t->townnameparts = townnameparts;

	t->InitializeLayout(layout);

	t->larger_town = city;

	int x = (int)size * 16 + 3;
	if (size == TSZ_RANDOM) x = (Random() & 0xF) + 8;
	/* Don't create huge cities when founding town in-game */
	if (city && (!manual || _game_mode == GM_EDITOR)) x *= _settings_game.economy.initial_city_size;