Timer.h


// ===========================================================================
/// <summary>
/// Timer.h
/// DirectXIntroduction
/// created by Mehrdad Soleimanimajd on 28.07.2019
/// </summary>
/// <created>ʆϒʅ, 28.07.2019</created>
/// <changed>ʆϒʅ, 04.07.2023</changed>
// ===========================================================================

#ifndef TIMER_H
#define TIMER_H


// high-precision timer container (time is measured in counts)
class Timer
{
private:
    bool initialized; // true if the initialization was successful
    long long timeStart; // application start time (start of the game loop)
    long long timeCurrentFrame; // the time of the current frame
    long long timePreviousFrame; // the time of the previous frame
    long long timeLastStopped; // the time of the last pause (user pauses, minimized, inactive)
    long long timeTotalIdle; // a total of all idle time (paused, minimized, inactive)
    double secondsPerCount; // frequency reciprocal (seconds per count)
    double timeDelta; // the automatically updated time between two frames (essential for a robust physics engine)
    bool paused; // true if the timer is paused
public:
    Timer (void);
    const bool& isInitialized (void); // get the initialized state
    const double getTotal (void); // total time minus the idle time
    const double& getDelta (void); // get the delta time
    const bool& isPaused (void); // get the paused state
    void event (const char* type); // start, reset, stop
    void tick (void); // the time never stops! (the time of every frame i.e. a cycle of game loop)
};


#endif // !TIMER_H