using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Threading;
using System.Net;
using System.Net.Sockets;
using System.Text;
using Common;
using UIWidgetsSamples;
using System;

/// <summary>
/// 服务端
/// </summary>
public class ChatUDPServerTest : MonoBehaviour
{
    public string serverIP;
    //IP地址
    public int serverPort;
    //端口
    //1.创建Scoket对象 IP Port
    private Thread thread;
    private UdpClient udpSeivic;
    public void Start()
    {
        chatView = transform.FindChildByName("ChatView").
            GetComponent<ChatView>();
        //给端口和IP
        //构建终结点  IP和一个端口
        IPEndPoint localEP = new 
            IPEndPoint(IPAddress.Parse(serverIP), serverPort);
        udpSeivic = new UdpClient(localEP);

        thread = new Thread(ReceiveMessage);
        thread.Start();
    }
    
    /// <summary>
    /// 接收消息
    /// </summary>
    private void ReceiveMessage()
    {
        while (true)
        {
            IPEndPoint remote = new
                IPEndPoint(IPAddress.Any, 0);
            //创建任意终结点
            //ref
            byte[] date = udpSeivic.Receive(ref remote);
            //Receive接收消息  如果没有收到消息 线程阻塞  放在线程中
            string msg = Encoding.UTF8.GetString(date);
            //获取的客户都安信息
            Debug.Log(remote.Address + "===" + remote.Port);
            //如果接收客户端的消息,会把任意终结点修改为客户端的终结点
            ThreadCrossHelper.Instance.ExecuteOnMainThread(() => { ShowMessage(msg); });
        }
    }
    private ChatView chatView;
    /// <summary>
    /// 显示消息
    /// </summary>
    /// <param name="msg"></param>
    public void ShowMessage(string msg)
    {
        chatView.DataSource.Add(new ChatLine()
        {
            UserName = "AnnnS",
            Message = msg,
            Time = DateTime.Now,
            Type = ChatLineType.User,
        });
    }
    private void OnApplicationQuit()
    {
        udpSeivic.Close();
        thread.Abort();
    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace Common
{
    /// <summary>
    /// 
    /// </summary>
    public class MonoSingleton<T> : MonoBehaviour where T : MonoSingleton<T>
    {
        //public static T Instance
        //{
        //    get;
        //    private set;
        //}
        //private void Awake()
        //{
        //    Instance = this as T;
        //} 
        //按需加载
        private static T instance;
        public static T Instance
        {
            get
            {
                if (instance == null)
                {
                    //在场景中查找对象
                    instance = FindObjectOfType<T>();
                    if (instance == null)
                    {
                        //创建游戏对象 附加 脚本对象
                        new GameObject("Singleton of " + typeof(T)).AddComponent<T>();//立即执行Awake
                    }
                    else
                    {
                        instance.Initialized();
                    }
                }
                return instance;
            }
        }

        protected virtual void Initialized()
        {

        }

        [Tooltip("是否需要跨场景不销毁")]
        public bool isDontDestroy = true;

        //如果管理类自行附加到物体中
        //在Awake中为instance赋值 
        protected void Awake()
        {
            if (isDontDestroy)
            {
                DontDestroyOnLoad(gameObject);
            }
            if (instance == null)
            {
                instance = this as T;
                instance.Initialized();
            }
        }
    }
}