st-timer.h

Go to the documentation of this file.

#pragma once
 
namespace StyyxUtil
{
struct TimerUtil
{
 

    void Start()
    {
        if (!running)
        {
            startTime = std::chrono::steady_clock::now();
            running   = true;
        }
    }

    void Stop() { running = false; }
    void Reset() { startTime = std::chrono::steady_clock::now(); }

    [[nodiscard]] double ElapsedSeconds() const
    {
        if (!running)
        {
            return 0.0;
        }
        const auto now = std::chrono::steady_clock::now();
        return std::chrono::duration<double>(now - startTime).count();
    }

    [[nodiscard]] bool IsRunning() const { return running; }

    void StartLimited(double a_seconds)
    {
        limitSeconds = a_seconds;
        limited      = true;
        startTime    = std::chrono::steady_clock::now();
        running      = true;
    }

    bool IsExpired()
    {
        if (!running || !limited)
        {
            return false;
        }
 
        if (ElapsedSeconds() >= limitSeconds)
        {
            Stop();
            return true;
        }
        return false;
    }

    [[nodiscard]] double RemainingSeconds() const
    {
        if (!running || !limited)
        {
            return 0.0;
        }
 
        return std::max(0.0, limitSeconds - ElapsedSeconds());
    }
 
  private:
    bool limited{false};
    double limitSeconds{0.0};
    std::chrono::steady_clock::time_point startTime{};
    bool running{false};
};
} // namespace StyyxUtil