mirror of
https://github.com/libretro/scummvm.git
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121 lines
3.0 KiB
C++
121 lines
3.0 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software{} you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation{} either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY{} without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program{} if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "glk/time.h"
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#include "common/system.h"
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namespace Glk {
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TimeAndDate::TimeAndDate() {
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::TimeDate t;
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g_system->getTimeAndDate(t);
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year = t.tm_year;
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month = t.tm_mon;
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day = t.tm_mday;
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weekday = t.tm_wday;
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hour = t.tm_hour;
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minute = t.tm_min;
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second = t.tm_sec;
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microsec = 0;
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}
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TimeAndDate::TimeAndDate(const TimeSeconds &ts) {
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setTime(ts);
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}
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TimeAndDate::TimeAndDate(const Timestamp &t) {
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setTime(((int64)t.high_sec << 32) | t.low_sec);
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}
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TimeAndDate::operator TimeSeconds() const {
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return getTime();
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}
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TimeAndDate::operator Timestamp() const {
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TimeSeconds secs = getTime();
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Timestamp ts;
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ts.high_sec = secs >> 32;
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ts.low_sec = secs & 0xffffffff;
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ts.microsec = 0;
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return ts;
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}
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void TimeAndDate::setTime(const TimeSeconds &ts) {
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TimeSeconds total = ts;
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int daysInYear = 0, secsInYear = 0;
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// Figure out the year
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this->year = 1969;
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do {
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++this->year;
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total -= secsInYear;
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daysInYear = ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0)) ? 366 : 365;
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secsInYear = daysInYear * 24 * 60 * 60;
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} while (total >= secsInYear);
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// Figure out month and day
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int dayInYear = total / (24 * 60 * 60);
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total %= 24 * 60 * 60;
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int MONTH_DAYS[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
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this->month = 1;
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while (dayInYear >= MONTH_DAYS[this->month - 1]) {
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dayInYear -= MONTH_DAYS[this->month - 1];
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this->month++;
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}
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this->day = dayInYear + 1;
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// set the time within the day
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this->hour = total / (60 * 60);
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total %= (60 * 60);
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this->minute = total / 60;
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this->second = total % 60;
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this->microsec = 0;
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}
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TimeSeconds TimeAndDate::getTime() const {
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uint32 days = day - 1;
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for (int i = 1970; i < year; ++i)
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if ((i % 4 == 0 && i % 100 != 0) || (i % 400 == 0))
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days += 366;
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else
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days += 365;
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int mdays[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
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for (int i = 1; i < month; ++i) {
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days += mdays[i - 1];
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if (i == 2)
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if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0))
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days += 1;
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}
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int64 totalHours = days * 24 + hour;
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int64 totalMinutes = totalHours * 60 + minute;
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return totalMinutes * 60 + second;
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}
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} // End of namespace Glk
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