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51 lines
1.7 KiB
C++
51 lines
1.7 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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* 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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* 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 "illusions/time.h"
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#include "common/system.h"
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namespace Illusions {
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uint32 getCurrentTime() {
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return g_system->getMillis() / 16;
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}
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bool isTimerExpired(uint32 startTime, uint32 endTime) {
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uint32 currTime = getCurrentTime();
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return !(
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(startTime > endTime && (currTime <= endTime || currTime >= startTime)) ||
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(startTime < endTime && currTime <= endTime && currTime >= startTime));
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}
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uint32 getDurationElapsed(uint32 startTime, uint32 endTime) {
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uint32 currTime = getCurrentTime();
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uint32 elapsed = endTime - startTime;
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if (isTimerExpired(startTime, endTime))
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return elapsed;
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else if (startTime < endTime || currTime > startTime)
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return currTime - startTime;
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else
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return currTime + elapsed - endTime;
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}
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} // End of namespace Illusions
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