(client) feat:添加网络类Network

Client/.vsconfig

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+{
+  "version": "1.0",
+  "components": [
+    "Microsoft.VisualStudio.Workload.ManagedGame"
+  ]
+}

Client/Assets/Scripts/Utils/Network.cs

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+using System;
+using System.Net.Sockets;
+using System.Text;
+using UnityEngine;
+
+namespace Utils
+{
+    public class Network : Singleton<Network>
+    {
+        private TcpClient _tcpClient;
+        public bool IsConnected => _tcpClient?.Connected ?? false;
+
+        /// <summary>
+        /// 尝试连接到指定的地址和端口
+        /// </summary>
+        /// <param name="address">服务器地址</param>
+        /// <param name="port">端口号</param>
+        /// <returns>连接是否成功</returns>
+        public bool Connect(string address, int port)
+        {
+            if (IsConnected)
+            {
+                Debug.LogWarning("Already connected to a server.");
+                return true;
+            }
+
+            try
+            {
+                // 创建一个新的 TcpClient 实例
+                _tcpClient = new TcpClient();
+
+                // 尝试连接到指定的地址和端口
+                _tcpClient.Connect(address, port);
+
+                // 如果连接成功
+                if (IsConnected)
+                {
+                    Debug.Log($"Successfully connected to server at {address}:{port}");
+                    return true;
+                }
+            }
+            catch (SocketException ex)
+            {
+                Debug.LogError($"Failed to connect to server at {address}:{port}. Error: {ex.Message}");
+            }
+            catch (Exception ex)
+            {
+                Debug.LogError($"An unexpected error occurred: {ex.Message}");
+            }
+
+            // 如果发生任何错误或连接失败
+            Disconnect();
+            return false;
+        }
+
+        /// <summary>
+        /// 断开与服务器的连接
+        /// </summary>
+        public void Disconnect()
+        {
+            if (!IsConnected)
+            {
+                Debug.LogWarning("Not currently connected to any server.");
+                return;
+            }
+
+            try
+            {
+                // 关闭 TcpClient 连接
+                _tcpClient?.Close();
+
+                Debug.Log("Disconnected from the server.");
+            }
+            catch (Exception ex)
+            {
+                Debug.LogError($"Error while disconnecting: {ex.Message}");
+            }
+        }
+
+        /// <summary>
+        /// 发送数据到服务器
+        /// </summary>
+        /// <param name="message">要发送的消息</param>
+        public void Send(string message)
+        {
+            if (!IsConnected)
+            {
+                Debug.LogError("Cannot send data. Not connected to any server.");
+                return;
+            }
+
+            try
+            {
+                // 获取网络流
+                NetworkStream stream = _tcpClient.GetStream();
+
+                // 将消息转换为字节数组
+                byte[] data = Encoding.UTF8.GetBytes(message);
+
+                // 发送数据
+                stream.Write(data, 0, data.Length);
+
+                Debug.Log($"Sent message to server: {message}");
+            }
+            catch (Exception ex)
+            {
+                Debug.LogError($"Error while sending: {ex.Message}");
+            }
+        }
+
+        /// <summary>
+        /// 接收来自服务器的数据
+        /// </summary>
+        /// <returns>接收到的消息</returns>
+        public string Receive()
+        {
+            if (!IsConnected)
+            {
+                Debug.LogError("Cannot receive data. Not connected to any server.");
+                return null;
+            }
+
+            try
+            {
+                // 获取网络流
+                NetworkStream stream = _tcpClient.GetStream();
+
+                // 检查是否有可用数据
+                if (stream.DataAvailable)
+                {
+                    // 读取数据
+                    byte[] buffer = new byte[1024];
+                    int bytesRead = stream.Read(buffer, 0, buffer.Length);
+
+                    // 将字节数组转换为字符串
+                    string message = Encoding.UTF8.GetString(buffer, 0, bytesRead);
+
+                    Debug.Log($"Received message from server: {message}");
+                    return message;
+                }
+            }
+            catch (Exception ex)
+            {
+                Debug.LogError($"Error while receiving: {ex.Message}");
+            }
+
+            return null;
+        }
+    }
+}

Client/Assets/Scripts/Utils/Network.cs.meta

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+fileFormatVersion: 2
+guid: 3cfed6461b8d6714bbc44fdac509c880