Unity ping一个服务器 ip 的工具类

using UnityEngine;
using System.Collections;
public class UnityPing : MonoBehaviour
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    private static string s_ip = "";
    private static System.Action<int> s_callback = null;
    private static UnityPing s_unityPing = null;
    private static int s_timeout = 2;
    public static void CreatePing(string ip, System.Action<int> callback)
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        if (string.IsNullOrEmpty(ip)) return;
        if (callback == null) return;
        if (s_unityPing != null) return;
        s_ip = ip;
        s_callback = callback;
        GameObject go = new GameObject("UnityPing");
        DontDestroyOnLoad(go);
        s_unityPing = go.AddComponent<UnityPing>();
    ｝
    /// <summary>
    /// 超时时间（单位秒）
    /// </summary>
    public static int Timeout
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        set
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            if (value > 0)
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                s_timeout = value;
            ｝
        ｝
        get ｛ return s_timeout; ｝
    ｝
    private void Start()
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        switch (Application.internetReachability)
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            case NetworkReachability.ReachableViaCarrierDataNetwork: // 3G/4G
            case NetworkReachability.ReachableViaLocalAreaNetwork: // WIFI
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                    StopCoroutine(this.PingConnect());
                    StartCoroutine(this.PingConnect());
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                break;
            case NetworkReachability.NotReachable: // 网络不可用
            default:
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                    if (s_callback != null)
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                        s_callback(-1);
                        Destroy(this.gameObject);
                    ｝
                ｝
                break;
        ｝
    ｝
    private void OnDestroy()
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        s_ip = "";
        s_timeout = 20;
        s_callback = null;
        if (s_unityPing != null)
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            s_unityPing = null;
        ｝
    ｝
    IEnumerator PingConnect()
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        // Ping网站
        Ping ping = new Ping(s_ip);
        int addTime = 0;
        int requestCount = s_timeout * 10; // 0.1秒 请求 1 次，所以请求次数是 n秒 x 10
        // 等待请求返回
        while (!ping.isDone)
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            yield return new WaitForSeconds(0.1f);
            // 链接失败
            if (addTime > requestCount)
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                addTime = 0;
                if (s_callback != null)
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                    s_callback(ping.time);
                    Destroy(this.gameObject);
                ｝
                yield break;
            ｝
            addTime++;
        ｝
        // 链接成功
        if (ping.isDone)
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            if (s_callback != null)
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                s_callback(ping.time);
                Destroy(this.gameObject);
            ｝
            yield return null;
        ｝
    ｝
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