protot/3rdparty/RuntimeCompiledCpp/Systems/TimeSystem/TimeSystem.h

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//
// Copyright (c) 2010-2011 Matthew Jack and Doug Binks
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
#pragma once
#include "../ITimeSystem.h"
// Consider adding a subclassed version that know about logging
class TimeSystem : public ITimeSystem
{
public:
TimeSystem();
~TimeSystem();
// IsWithinSession
void StartSession();
void EndSession();
// IsWithinFrame
void StartFrame();
void EndFrame();
bool IsPaused() const;
void Pause(bool bPause);
double GetFramePlayTime() const;
double GetFrameSessionTime() const;
double GetPlayTimeNow() const;
double GetSessionTimeNow() const;
double GetFrameTimeNow() const;
double GetLastFrameDuration() const;
double GetSmoothFrameDuration() const;
private:
void Reset();
double GetRawTime() const;
// All refer to the start of the current frame. The _current_ time values are obviously not worth storing.
double m_dSessionStartRaw; // The the "real" time that the session started
double m_dFramePlayTime; // How much unpaused time had elapsed when we started the frame?
double m_dFrameSessionTime; // How much total time had elapsed...
double m_dPausedSince; //
double m_dSessionPausedTime;// Accumulated paused time this session, up to the last time we unpaused. Is this too unhygenic?
double m_dLastFrameDuration; // How long did the last frame actually take?
double m_dSmoothFrameDuration; // How long do we guess this frame will take?
bool m_bWithinSession, m_bWithinFrame;
bool m_bPaused, m_bPausedNextFrame;
#ifdef _WIN32
typedef __int64 INT64;
INT64 m_iPerformanceFreq; // Divisor for performance frequency values
#endif
};