mirror of https://github.com/OpenRCT2/OpenRCT2.git
122 lines
2.7 KiB
C++
122 lines
2.7 KiB
C++
/*****************************************************************************
|
|
* Copyright (c) 2014-2023 OpenRCT2 developers
|
|
*
|
|
* For a complete list of all authors, please refer to contributors.md
|
|
* Interested in contributing? Visit https://github.com/OpenRCT2/OpenRCT2
|
|
*
|
|
* OpenRCT2 is licensed under the GNU General Public License version 3.
|
|
*****************************************************************************/
|
|
|
|
#include "localisation/Date.h"
|
|
|
|
#include "Date.h"
|
|
#include "core/Guard.hpp"
|
|
|
|
#include <algorithm>
|
|
|
|
using namespace OpenRCT2;
|
|
|
|
constexpr int32_t MONTH_TICKS_INCREMENT = 4;
|
|
constexpr int32_t MASK_WEEK_TICKS = 0x3FFF;
|
|
constexpr int32_t MASK_FORTNIGHT_TICKS = 0x7FFF;
|
|
constexpr int32_t MASK_MONTH_TICKS = 0xFFFF;
|
|
|
|
Date::Date(uint32_t monthsElapsed, uint16_t monthTicks)
|
|
: _monthTicks(monthTicks)
|
|
, _monthsElapsed(monthsElapsed)
|
|
{
|
|
}
|
|
|
|
Date Date::FromYMD(int32_t year, int32_t month, int32_t day)
|
|
{
|
|
// Year, months
|
|
Guard::ArgumentInRange(month, 0, MONTH_COUNT - 1);
|
|
int32_t monthsElapsed = (year * MONTH_COUNT) + month;
|
|
|
|
// Day
|
|
int32_t monthTicks = 0;
|
|
if (day != 0)
|
|
{
|
|
auto daysInMonth = GetDaysInMonth(month);
|
|
day = std::clamp(day, 0, daysInMonth - 1);
|
|
monthTicks = (day << 16) / daysInMonth;
|
|
}
|
|
|
|
return Date(monthsElapsed, monthTicks);
|
|
}
|
|
|
|
void Date::Update()
|
|
{
|
|
int32_t monthTicks = _monthTicks + MONTH_TICKS_INCREMENT;
|
|
if (monthTicks > MASK_MONTH_TICKS)
|
|
{
|
|
_monthTicks = 0;
|
|
_monthsElapsed++;
|
|
}
|
|
else
|
|
{
|
|
_monthTicks = static_cast<uint16_t>(monthTicks);
|
|
}
|
|
}
|
|
|
|
uint16_t Date::GetMonthTicks() const
|
|
{
|
|
return _monthTicks;
|
|
}
|
|
|
|
uint32_t Date::GetMonthsElapsed() const
|
|
{
|
|
return _monthsElapsed;
|
|
}
|
|
|
|
int32_t Date::GetDay() const
|
|
{
|
|
auto month = GetMonth();
|
|
auto daysInMonth = GetDaysInMonth(month);
|
|
return ((_monthTicks * daysInMonth) >> 16) & 0xFF;
|
|
}
|
|
|
|
int32_t Date::GetMonth() const
|
|
{
|
|
return _monthsElapsed % MONTH_COUNT;
|
|
}
|
|
|
|
int32_t Date::GetYear() const
|
|
{
|
|
return _monthsElapsed / MONTH_COUNT;
|
|
}
|
|
|
|
bool Date::IsDayStart() const
|
|
{
|
|
if (_monthTicks < 4)
|
|
{
|
|
return false;
|
|
}
|
|
int32_t prevMonthTick = _monthTicks - 4;
|
|
int32_t currentMonth = GetMonth();
|
|
int32_t currentDaysInMonth = GetDaysInMonth(currentMonth);
|
|
return ((currentDaysInMonth * _monthTicks) >> 16 != (currentDaysInMonth * prevMonthTick) >> 16);
|
|
}
|
|
|
|
bool Date::IsWeekStart() const
|
|
{
|
|
return (_monthTicks & MASK_WEEK_TICKS) == 0;
|
|
}
|
|
|
|
bool Date::IsFortnightStart() const
|
|
{
|
|
return (_monthTicks & MASK_FORTNIGHT_TICKS) == 0;
|
|
}
|
|
|
|
bool Date::IsMonthStart() const
|
|
{
|
|
return (_monthTicks == 0);
|
|
}
|
|
|
|
int32_t Date::GetDaysInMonth(int32_t month)
|
|
{
|
|
Guard::ArgumentInRange(month, 0, MONTH_COUNT - 1);
|
|
|
|
return days_in_month[month];
|
|
}
|