TianJin_23/Assets/Scripts/Examination/TimeManager.cs

using UnityEngine;
using System.Collections;
using System;
using UnityEngine.UI;
using AX.MessageSystem;

public class TimeManager : MonoBehaviour {

    public static float RemainSeconds = -10;//记录当前考试的剩余时间
    public static ExaminationInfo CurExam = null;//记录当前正在作答的考试
    public static QuestionInfo CurQues = null;//记录当前选中的考题
    public static float TipTime = 30;
    public static DateTime LastTime;
    public static event EventHandler TimeOutEvent;

    void Awake()
    {
        switch (ExamInfoHelpClass.loadSceneMode)
        {
            case ExamInfoHelpClass.LoadSceneMode.ExamineMode:
            case ExamInfoHelpClass.LoadSceneMode.CheckAnswer:
                TipTime = 30;
                break;
            case ExamInfoHelpClass.LoadSceneMode.MakeScore:
                TipTime = 0;
                break;
            default:
                TipTime = 100000;
                break;
        }

        var deltaTime = DateTime.Now - LastTime;
        RemainSeconds -= (float)deltaTime.TotalSeconds;
    }

    void Update()
    {
        if (RemainSeconds > TipTime)
        {
            RemainSeconds -= Time.deltaTime;
            if (RemainSeconds < 3600)//倒数一小时开始显示时间
            {
                if (!transform.Find("TimeManager").gameObject.activeInHierarchy)
                {
                    transform.Find("TimeManager").gameObject.SetActive(true);
                }
                ShowTimeAccordingSeconds((int)RemainSeconds);
            }
            
        }
        else//考试时间结束，自动交卷
        {
            if (TimeOutEvent != null)
            {
                TimeOutEvent(this, EventArgs.Empty);
            }
        }
    }

    void ShowTimeAccordingSeconds(int second)
    {
        var hour = second / 3600;
        var min = (second % 3600) / 60;
        var sec = (second % 3600) % 60;
        transform.Find("TimeManager").Find("Time/Second").GetComponent<Text>().text = hour + ":" + min + ":" + sec;
    }

    void OnDestroy()
    {
        if (TimeOutEvent != null)
        {
            TimeOutEvent = null;
        }
        TipTime = 30;
    }
}