/// <summary>
 /// 刷新
 /// </summary>
 public void GameUpdate()
 {
     if (DayTime < Time.time - startdaytime && TimeState == Enum_DayNight.Day)//变为晚上
     {
         TimeState      = Enum_DayNight.Night;
         startnighttime = Time.time;
     }
     if (NightTime < Time.time - startnighttime && TimeState == Enum_DayNight.Night)
     {
         TimeState    = Enum_DayNight.Day;
         startdaytime = Time.time;
     }
 }
 /// <summary>
 /// 开始计时
 /// </summary>
 public void StartTime()
 {
     startdurationtime = Time.time;
     startdaytime      = Time.time;
     TimeState         = Enum_DayNight.Day;
 }