Function GetStartTickFromDate

src/timetable_cmd.cpp:29–39

* Get the TimerGameTick::TickCounter tick of a given date. * @param start_date The date when the timetable starts. * @return The first tick of this date. */

 * @return The first tick of this date.
 */
TimerGameTick::TickCounter GetStartTickFromDate(TimerGameEconomy::Date start_date)
{
	/* Calculate the offset in ticks from the current date. */
	TimerGameTick::Ticks tick_offset = (start_date - TimerGameEconomy::date).base() * Ticks::DAY_TICKS;

	/* Compensate for the current date_fract. */
	tick_offset -= TimerGameEconomy::date_fract;

	/* Return the current tick plus the offset. */
	return TimerGameTick::counter + tick_offset;
}

/**
 * Get a date from a given start tick of timetable.