How to use Workerman to implement real-time position tracking function of PHP and Unity3D

How to use Workerman to implement the real-time location tracking function of PHP and Unity3D

Introduction:
In many applications, the real-time location tracking function can help us implement some interesting applications, such as real-time positioning and real-time navigation , real-time multiplayer games, etc. This article will lead you to implement a simple real-time location tracking function by using PHP and Unity3D combined with the Workerman framework.

Prerequisite preparation:
Before you start, you need to ensure the following aspects:

1. Install Unity3D: Go to the official website of Unity to download and install the latest version of Unity3D.
2. Install PHP and Workerman: Install PHP on the server and use Composer to install Workerman.

Implementation process:

1. Create Unity3D project:
   Open Unity3D and create a new project. Create a 3D model in the scene as a tracking target.
2. Write a Unity3D script:
   Create a new C# script in the Unity3D project and name it "TrackingScript.cs". Add the following code to the script:

using UnityEngine;

public class TrackingScript : MonoBehaviour
{
    // 创建Socket实例
    private Socket socket;

    // 当启动游戏时
    private void Start()
    {
        // 连接到服务器
        socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
        socket.Connect("服务器IP地址", 2345);
        Debug.Log("连接成功");
    }

    // 在每一帧更新时
    private void Update()
    {
        // 获取当前位置
        Vector3 position = transform.position;

        // 将位置信息通过Socket发送给服务器
        string message = position.x + "," + position.y + "," + position.z;
        byte[] buffer = Encoding.Default.GetBytes(message);
        socket.Send(buffer);
    }

    // 在游戏结束时关闭连接
    private void OnDestroy()
    {
        socket.Close();
    }
}

3. Create a server-side PHP file:
   Create a PHP file named "tracking_server.php" on the server. Add the following code in the file:

require_once __DIR__ . '/vendor/autoload.php';

use WorkermanWorker;

$worker = new Worker("websocket://0.0.0.0:2345");

$worker->onMessage = function ($connection, $data) {
    // 接收到位置信息后，广播给所有连接的客户端
    foreach ($connection->worker->connections as $client_connection) {
        $client_connection->send($data);
    }
};

Worker::runAll();

4. Run the server:
   Run the following command in the command line to start the server side:

php tracking_server.php start

5. Run the game in Unity3D:
   Click the run button in Unity3D and the game will start. When the 3D model moves, the location information is sent to the server through Socket.
6. Create a Unity3D script:
   Add an empty object in the Unity3D scene and attach the "TrackingScript.cs" script to the object. Make sure the server IP address in the script matches the actual IP address.
7. Real-time location tracking:
   Through the above steps, the location information of the 3D model in the Unity3D project will be sent to the server in real time. The server will broadcast location information to all connected clients.

Summary:
By using the Workerman framework combined with PHP and Unity3D, we successfully implemented a simple real-time location tracking function. You can extend this feature and add more interesting features according to your needs. Hope this article is helpful to you.

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