在Unity游戏引擎中打开框后的C＃倒计时

Question

I need to access the PC or Android system time at opening a box and save it, then start counting down 5 minutes from that time. When 5 minutes pass, re-enable the button to open the box. I've tried many approaches but all lead to a dead end.

public class Test : MonoBehaviour
{
    public Button boxButton;
    long previousOpenedBox;

    private void Update()
    {
        if (!boxButton.IsInteractable())
        {
            long diff = (DateTime.Now.Ticks - previousOpenedBox);
            //start counting down the time to re-enable the button.
        }
    }

    public void BoxClicked()
    {
        long previousOpenedBox = DateTime.Now.Ticks;
        boxButton.interactable = false;
    }
}

Answer 1

I don't know why you are implementing your opening logics when you update the box, you should put them in the BoxClicked method instead. This minimal example shows how to deal with a blocking delay and should point you to the right path.

public class Test : MonoBehaviour
{
    private DateTime m_LastOpening;
    public Button m_BoxButton;

    public void BoxClicked()
    {
        DateTime now = DateTime.Now;

        // 5 minutes elapsed, you can open the box
        if ((now - m_LastOpening).TotalMinutes > 5)
        {
            m_LastOpening = now;
            m_BoxButton.interactable = false;
        }
        else // otherwise you have to wait
        {
            // ...
        }
    }
}