int DrawVehiclePurchaseInfo(int left, int right, int y, EngineID engine_number, TestedEngineDetails &te)

{

	const Engine *e = Engine::Get(engine_number);

	bool refittable = IsArticulatedVehicleRefittable(engine_number);

	bool articulated_cargo = false;

	auto new_year = Clamp(TimerGameCalendar::Year(new_value), CalendarTime::MIN_YEAR, CalendarTime::MAX_YEAR);

	if (new_year == TimerGameCalendar::year) return TimerGameCalendar::year.base();

	TimerGameCalendar::Date new_date = TimerGameCalendar::ConvertYMDToDate(new_year, ymd.month, ymd.day);

	/* Shift cached dates before we change the date. */

		return true;

	}

	IConsolePrint(CC_DEFAULT, "Date: {:04d}-{:02d}-{:02d}", ymd.year, ymd.month + 1, ymd.day);

	return true;

}

	int i = 0;

	for (NewsItem *news = _latest_news; i < 32 && news != nullptr; news = news->prev, i++) {

		json.push_back(fmt::format("({}-{:02}-{:02}) StringID: {}, Type: {}, Ref1: {}, {}, Ref2: {}, {}",

		               ymd.year, ymd.month + 1, ymd.day, news->string_id, news->type,

		               news->reftype1, news->ref1, news->reftype2, news->ref2));

		this->InitNested(window_number);

		if (initial_date == 0) initial_date = TimerGameCalendar::date;

		this->date.year = Clamp(this->date.year, min_year, max_year);

	}

		if (e->type == VEH_TRAIN && e->u.rail.railveh_type == RAILVEH_WAGON) continue;

		/* Base year ending date on half the model life */

		_year_engine_aging_stops = std::max(_year_engine_aging_stops, ymd.year);

	}

{

	if (_snow_line == nullptr) return _settings_game.game_creation.snow_line_height;

	return _snow_line->table[ymd.month][ymd.day];

}

			if (const NWidgetBase *nwid = this->GetWidget<NWidgetBase>(WID_NG_DATE); nwid->current_x != 0) {

				/* current date */

				Rect date = nwid->GetCurrentRect();

				SetDParam(0, ymd.year);

				DrawString(date.left, date.right, y + text_y_offset, STR_JUST_INT, TC_BLACK, SA_HOR_CENTER);

			}

			if (const NWidgetBase *nwid = this->GetWidget<NWidgetBase>(WID_NG_YEARS); nwid->current_x != 0) {

				/* number of years the game is running */

				Rect years = nwid->GetCurrentRect();

				SetDParam(0, ymd_cur.year - ymd_start.year);

				DrawString(years.left, years.right, y + text_y_offset, STR_JUST_INT, TC_BLACK, SA_HOR_CENTER);

			}

			return true;

		case 0x02: { // detailed date information: month of year (bit 0-7), day of month (bit 8-12), leap year (bit 15), day of year (bit 16-24)

			TimerGameCalendar::Date start_of_year = TimerGameCalendar::ConvertYMDToDate(ymd.year, 0, 1);

			*value = ymd.month | (ymd.day - 1) << 8 | (TimerGameCalendar::IsLeapYear(ymd.year) ? 1 << 15 : 0) | (TimerGameCalendar::date - start_of_year).base() << 16;

			return true;

			if (i->type > 0x06) i->type++; // Printing Works were added

			if (i->type == 0x0A) i->type = 0x12; // Iron Ore Mine has different ID

			i->last_prod_year = ymd.year;

			i->random_colour = RemapTTOColour(i->random_colour);

{

	if (date < 0) return DATE_INVALID;

	return ymd.year.base();

}

{

	if (date < 0) return DATE_INVALID;

	return ymd.month + 1;

}

{

	if (date < 0) return DATE_INVALID;

	return ymd.day;

}

static void FormatYmdString(StringBuilder &builder, TimerGameCalendar::Date date, uint case_index)

{

	auto tmp_params = MakeParameters(ymd.day + STR_DAY_NUMBER_1ST - 1, STR_MONTH_ABBREV_JAN + ymd.month, ymd.year);

	FormatString(builder, GetStringPtr(STR_FORMAT_DATE_LONG), tmp_params, case_index);

static void FormatMonthAndYear(StringBuilder &builder, TimerGameCalendar::Date date, uint case_index)

{

	auto tmp_params = MakeParameters(STR_MONTH_JAN + ymd.month, ymd.year);

	FormatString(builder, GetStringPtr(STR_FORMAT_DATE_SHORT), tmp_params, case_index);

static void FormatTinyOrISODate(StringBuilder &builder, TimerGameCalendar::Date date, StringID str)

{

	/* Day and month are zero-padded with ZEROFILL_NUM, hence the two 2s. */

	auto tmp_params = MakeParameters(ymd.day, 2, ymd.month + 1, 2, ymd.year);

	{

		if (widget != WID_SUL_PANEL) return;

		Rect tr = r.Shrink(WidgetDimensions::scaled.framerect);

	survey["ticks"] = TimerGameTick::counter;

	survey["seconds"] = std::chrono::duration_cast<std::chrono::seconds>(std::chrono::steady_clock::now() - _switch_mode_time).count();

	survey["calendar"] = fmt::format("{:04}-{:02}-{:02} ({})", ymd.year, ymd.month + 1, ymd.day, TimerGameCalendar::date_fract);

}

/**

 * Converts a Date to a Year, Month & Day.

 * @param date the date to convert from

 */

{

	/* Year determination in multiple steps to account for leap

	 * years. First do the large steps, then the smaller ones.

	/* There are 97 leap years in 400 years */

	TimerGameCalendar::Year yr = 400 * (date.base() / (CalendarTime::DAYS_IN_YEAR * 400 + 97));

	int rem = date.base() % (CalendarTime::DAYS_IN_YEAR * 400 + 97);

	if (rem >= CalendarTime::DAYS_IN_YEAR * 100 + 25) {

		/* There are 25 leap years in the first 100 years after

	/* Skip the 29th of February in non-leap years */

	if (!TimerGameCalendar::IsLeapYear(yr) && rem >= ACCUM_MAR - 1) rem++;

}

/**

{

	assert(fract < Ticks::DAY_TICKS);

	TimerGameCalendar::date = date;

	TimerGameCalendar::date_fract = fract;

	TimerGameCalendar::year = ymd.year;

	TimerGameCalendar::month = ymd.month;

}

	/* increase day counter */

	TimerGameCalendar::date++;

	/* check if we entered a new month? */

	bool new_month = ymd.month != TimerGameCalendar::month;

	};

	static bool IsLeapYear(Year yr);

	static Date ConvertYMDToDate(Year year, Month month, Day day);

	static void SetDate(Date date, DateFract fract);