63 lines
1.7 KiB
C#
63 lines
1.7 KiB
C#
using System;
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using System.Collections;
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using System.Globalization;
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using UnityEngine;
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using UnityEngine.Networking;
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public class InternetTime : MonoBehaviour
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{
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public static InternetTime Ins;
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private void Awake() { Ins = this; DontDestroyOnLoad(gameObject); }
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public DateTime Time { get; private set; }
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// 한국 표준시 = UTC+9
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private static readonly TimeSpan KSTOffset = TimeSpan.FromHours(9);
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public void Start()
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{
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StartCoroutine(GetKSTTime());
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}
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IEnumerator Co_1Sec()
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{
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while ( true)
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{
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yield return new WaitForSeconds(1f);
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Time = Time.AddSeconds(1f);
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}
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}
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IEnumerator GetKSTTime()
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{
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Time = DateTime.Now;
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using (UnityWebRequest req = UnityWebRequest.Get("https://google.com"))
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{
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yield return req.SendWebRequest();
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if (req.result == UnityWebRequest.Result.ConnectionError ||
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req.result == UnityWebRequest.Result.ProtocolError)
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{
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Time = DateTime.Now;
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}
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else
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{
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string dateHeader = req.GetResponseHeader("date");
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if (!string.IsNullOrEmpty(dateHeader))
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{
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// 서버가 준 시간은 UTC 기준
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DateTime utcTime = DateTime.ParseExact(
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dateHeader,
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"ddd, dd MMM yyyy HH:mm:ss 'GMT'",
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CultureInfo.InvariantCulture.DateTimeFormat,
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DateTimeStyles.AssumeUniversal
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);
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Time = utcTime.ToUniversalTime() + KSTOffset;
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}
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}
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StartCoroutine(Co_1Sec());
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}
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}
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} |