$#include "Timer.h"

/// Low-resolution operating system timer.
class Timer
{
public:
    /// Construct. Get the starting clock value.
    Timer();
    
    /// Return elapsed milliseconds and optionally reset.
    unsigned GetMSec(bool reset);
    
    /// Reset the timer.
    void Reset();
};

/// %Time and frame counter subsystem.
class Time : public Object
{
public:
    /// Return frame number, starting from 1 once BeginFrame() is called for the first time.
    unsigned GetFrameNumber() const;
    
    /// Return current frame timestep as seconds.
    float GetTimeStep() const;
    
    /// Return current low-resolution timer period in milliseconds.
    unsigned GetTimerPeriod();
    
    /// Return elapsed time from program start as seconds.
    float GetElapsedTime();    
};