51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
/*
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* This file is part of the Colobot: Gold Edition source code
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* Copyright (C) 2001-2023, Daniel Roux, EPSITEC SA & TerranovaTeam
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* http://epsitec.ch; http://colobot.info; http://github.com/colobot
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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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*
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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.
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* See the 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, see http://gnu.org/licenses
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*/
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/**
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* \file common/timeutils.h
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* \brief Some useful cross-platform operations on timestamps
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*/
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#include <chrono>
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namespace TimeUtils
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{
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enum class TimeUnit
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{
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SECONDS,
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MILLISECONDS,
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MICROSECONDS
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};
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using TimeStamp = std::chrono::time_point<std::chrono::high_resolution_clock>;
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//! Linearly interpolates between two timestamps.
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TimeStamp Lerp(TimeStamp a, TimeStamp b, float t);
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//! Returns a difference between two timestamps in given time unit
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/** The difference is \a after - \a before. */
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float Diff(TimeStamp before, TimeStamp after, TimeUnit unit = TimeUnit::SECONDS);
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//! Returns the exact (in nanosecond units) difference between two timestamps
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/** The difference is \a after - \a before. */
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long long ExactDiff(TimeStamp before, TimeStamp after);
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} // namespace TimeUtils
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