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50 lines
1.6 KiB
C++
50 lines
1.6 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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (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, see <http://www.gnu.org/licenses/>.
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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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