/*  Starshatter: The Open Source Project
    Copyright (c) 2021-2022, Starshatter: The Open Source Project Contributors
    Copyright (c) 2011-2012, Starshatter OpenSource Distribution Contributors
    Copyright (c) 1997-2006, Destroyer Studios LLC.
*/

#ifndef Clock_h
#define Clock_h

#include <chrono>


class Clock
{
public:
    using inner_clock = std::chrono::high_resolution_clock;
    using elapsed_duration = std::chrono::milliseconds;
    using count_type = elapsed_duration::rep;

    Clock();

    void Set();
    void Reset();
    double Step();

    double Delta() const;
    double GuiDelta() const;
    double TimeCompression() const;
    count_type GameTime() const;
    count_type RealTime() const;

    void SetTimeCompression(double compression);

protected:
    inner_clock::time_point m_point;
    elapsed_duration m_game_elapsed;
    elapsed_duration m_real_elapsed;
    double m_compression;
    double m_delta;
    double m_gui_delta;
};


#endif  // Clock_h