Python发送数据到Unity实现

Unity设置:

• 打开Unity项目。
• 创建一个空的GameObject，并附加一个新的脚本TCPReceiver

  using System.Net;
  using System.Net.Sockets;
  using System.Text;
  using UnityEngine;
  using System.Threading;

  public class MyListener : MonoBehaviour
  {
      Thread thread;
      public int connectionPort = 25001;
      TcpListener server;
      TcpClient client;
      bool running;


      void Start()
      {
          // Receive on a separate thread so Unity doesn't freeze waiting for data
          ThreadStart ts = new ThreadStart(GetData);
          thread = new Thread(ts);
          thread.Start();
      }

      void GetData()
      {
          // Create the server
          server = new TcpListener(IPAddress.Any, connectionPort);
          server.Start();

          // Create a client to get the data stream
          client = server.AcceptTcpClient();

          // Start listening
          running = true;
          while (running)
          {
              Connection();
          }
          server.Stop();
      }

      void Connection()
      {
          // Read data from the network stream
          NetworkStream nwStream = client.GetStream();
          byte[] buffer = new byte[client.ReceiveBufferSize];
          int bytesRead = nwStream.Read(buffer, 0, client.ReceiveBufferSize);

          // Decode the bytes into a string
          string dataReceived = Encoding.UTF8.GetString(buffer, 0, bytesRead);
          
          // Make sure we're not getting an empty string
          //dataReceived.Trim();
          if (dataReceived != null && dataReceived != "")
          {
              // Convert the received string of data to the format we are using
              position = ParseData(dataReceived);
              nwStream.Write(buffer, 0, bytesRead);
          }
      }

      // Use-case specific function, need to re-write this to interpret whatever data is being sent
      public static Vector3 ParseData(string dataString)
      {
          Debug.Log(dataString);
          // Remove the parentheses
          if (dataString.StartsWith("(") && dataString.EndsWith(")"))
          {
              dataString = dataString.Substring(1, dataString.Length - 2);
          }

          // Split the elements into an array
          string[] stringArray = dataString.Split(',');

          // Store as a Vector3
          Vector3 result = new Vector3(
              float.Parse(stringArray[0]),
              float.Parse(stringArray[1]),
              float.Parse(stringArray[2]));

          return result;
      }

      // Position is the data being received in this example
      Vector3 position = Vector3.zero;

      void Update()
      {
          // Set this object's position in the scene according to the position received
          transform.position = position;
      }
  }

Python设置:

• 如果尚未安装socket库，安装（pip install socket）

• 创建一个Python脚本send_data.py

  import socket
  
  host, port = "127.0.0.1", 25001
  data = "1,2,3"
  
  # SOCK_STREAM means TCP socket
  sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
  
  try:
      # Connect to the server and send the data
      sock.connect((host, port))
      sock.sendall(data.encode("utf-8"))
      response = sock.recv(1024).decode("utf-8")
      print (response)
  
  finally:
      sock.close()