在 IF 语句中将 bool 更改为 false 后计时器不会停止

Question

I have this strange problem. When I call stopTimer(), it changes the bool, but UpdateTime is still working and timer is going. Everything works, but the timer doesnt stop.

    public float elapsedTime;
    public float startTime;

    public bool stopTimer = false;

    private bool keepTiming = true;
    
    void Start()
    {
        startTime = Time.time;
    }

    void Update()
    {
        if(keepTiming)
        {
            UpdateTime();
            
        }else{Debug.Log("Timer has stopped");}

        if(stopTimer)
            Debug.Log(StopTimer());
    }

    public void UpdateTime()
    {
        elapsedTime = Time.time - startTime;
        float t = Time.time - startTime;

        string minutes = ((int) t/ 60).ToString();
        string seconds = (t % 60).ToString("f2");
        
        timeText.text = minutes + ":" + seconds;
        
    }

    float StopTimer()
    {
        keepTiming = false;
        return elapsedTime;
    }
}

Answer 1

It worked by adding static to keepTiming bool. I don't really understand why, but it worked.