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110 lines
3.1 KiB
C++
110 lines
3.1 KiB
C++
/*
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* This file is part of OpenTTD.
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* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
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* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file date_func.h Functions related to dates. */
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#ifndef DATE_FUNC_H
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#define DATE_FUNC_H
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#include "date_type.h"
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#include "settings_type.h"
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extern uint64_t _tick_counter;
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extern ScaledTickCounter _scaled_tick_counter;
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extern StateTicks _state_ticks;
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extern uint32_t _quit_after_days;
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namespace DateDetail {
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extern StateTicksDelta _state_ticks_offset;
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extern uint8_t _tick_skip_counter;
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extern uint8_t _effective_day_length;
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extern Ticks _ticks_per_calendar_day;
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};
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StateTicks GetStateTicksFromDateWithoutOffset(EconTime::Date date, EconTime::DateFract date_fract);
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void RecalculateStateTicksOffset();
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inline uint8_t TickSkipCounter()
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{
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return DateDetail::_tick_skip_counter;
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}
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inline uint8_t DayLengthFactor()
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{
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return DateDetail::_effective_day_length;
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}
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inline Ticks TicksPerCalendarDay()
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{
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return DateDetail::_ticks_per_calendar_day;
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}
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void UpdateEffectiveDayLengthFactor();
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inline constexpr YearDelta DateDeltaToYearDelta(DateDelta date)
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{
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return date.base() / DAYS_IN_LEAP_YEAR;
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}
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inline constexpr DateTicksDelta DateDeltaToDateTicksDelta(DateDelta date, uint16_t fract = 0)
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{
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return ((int64_t)date.base() * DAY_TICKS) + fract;
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}
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inline EconTime::Date StateTicksToDate(StateTicks ticks)
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{
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return (ticks.base() - DateDetail::_state_ticks_offset.base()) / (DAY_TICKS * DayLengthFactor());
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}
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CalTime::Date StateTicksToCalendarDate(StateTicks ticks);
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inline StateTicks DateToStateTicks(EconTime::Date date)
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{
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return ((int64_t)date.base() * DAY_TICKS * DayLengthFactor()) + DateDetail::_state_ticks_offset.base();
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}
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inline EconTime::DateTicks StateTicksToDateTicks(StateTicks ticks)
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{
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return (ticks.base() - DateDetail::_state_ticks_offset.base()) / DayLengthFactor();
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}
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inline StateTicks DateTicksToStateTicks(EconTime::DateTicks date_ticks)
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{
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return ((int64_t)date_ticks.base() * DayLengthFactor()) + DateDetail::_state_ticks_offset.base();
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}
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inline Ticks TimetableDisplayUnitSize()
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{
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if (_settings_time.time_in_minutes) {
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return _settings_time.ticks_per_minute;
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} else if (EconTime::UsingWallclockUnits()) {
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return TICKS_PER_SECOND;
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} else {
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return TicksPerCalendarDay();
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}
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}
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inline Ticks TimetableAbsoluteDisplayUnitSize()
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{
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if (_settings_time.time_in_minutes) {
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return _settings_time.ticks_per_minute;
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} else {
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return TicksPerCalendarDay();
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}
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}
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struct debug_date_dumper {
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const char *HexDate(EconTime::Date date, EconTime::DateFract date_fract, uint8_t tick_skip_counter);
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inline const char *HexDate() { return this->HexDate(EconTime::CurDate(), EconTime::CurDateFract(), TickSkipCounter()); }
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private:
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char buffer[24];
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};
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#endif /* DATE_FUNC_H */
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