How to use Workerman to realize the cross-platform game online function of PHP and Unity3D

How to use Workerman to realize the cross-platform game online function of PHP and Unity3D

With the rise of mobile games, the cross-platform game online function has become one of the focuses of game developers. PHP is a language widely used in web development, and Unity3D is a powerful cross-platform game engine. How to realize the online function between the two has become a question for developers. This article will introduce how to use Workerman to realize the cross-platform game online function of PHP and Unity3D.

1. What is Workerman
   Workerman is a high-performance network programming framework based on PHP that can implement long-term connection server-side functions. By using Workerman, we can easily implement cross-platform online games with real-time communication capabilities.
2. Set up the server
   First, we need to build a server as a transfer platform for game connections. Run the following code on the server using the command line to start the server:

$ cd your_workerman_project_folder
$ php start.php start

3. Write server-side code
   The server-side code is as follows:

// 引入Workerman的Autoloader
require_once './vendor/autoload.php';

use WorkermanWorker;
use GatewayWorkerRegister;
use GatewayWorkerGateway;

// 创建一个Worker监听7900端口，使用websocket协议通信
$worker = new Worker('websocket://0.0.0.0:7900');

// 设置Worker的进程数量
$worker->count = 4;

// 设置Worker的名称
$worker->name = 'GameWorker';

// 设置Worker的注册地址，将客户端连接信息注册到Gateway
$register = new Register('text://0.0.0.0:1236');

// 设置Gateway的名称为ChatGateway，监听Gateway端口
$gateway = new Gateway('websocket://0.0.0.0:2346');

// 设置Gateway与Worker的连接端口
$gateway->registerAddress = '127.0.0.1:1236';

// 运行所有Worker和Gateway
Worker::runAll();

4. Unity3D client settings
   In the Unity3D project, you need to import the Socket.IO-Client library. The code for using C# to write online functions in Unity3D is as follows:

using UnityEngine;
using SocketIO;

public class GameManager : MonoBehaviour
{
    private SocketIOComponent socket;
    private string serverURL = "ws://your_server_ip:2346/socket.io/";

    private void Start()
    {
        // 获取SocketIOComponent
        socket = GetComponent<SocketIOComponent>();

        // 连接服务器
        socket.url = serverURL;
        socket.Connect();
        
        // 监听服务器返回的事件
        socket.On("connect", OnConnected);
        socket.On("join", OnJoin);
        socket.On("move", OnMove);
    }
    
    private void OnConnected(SocketIOEvent e)
    {
        Debug.Log("Connected to server");
        
        // 向服务器发送加入游戏请求
        socket.Emit("join");
    }
    
    private void OnJoin(SocketIOEvent e)
    {
        Debug.Log("Joined the game");
        
        // 向服务器发送移动请求
        socket.Emit("move", "up");
    }
    
    private void OnMove(SocketIOEvent e)
    {
        Debug.Log("Moved");//处理移动操作
    }
}

5. PHP server sends broadcast messages
   The server can use the method provided by Workerman to send to all clients information. Modify the server-side code as follows:

// 引入Workerman的Autoloader
require_once './vendor/autoload.php';

use WorkermanWorker;
use GatewayWorkerRegister;
use GatewayWorkerGateway;

// ...

// 在收到客户端的移动请求时，向所有客户端发送广播消息
$gateway->onMessage = function ($client, $message) {
    $data = json_decode($message, true);
    if ($data['action'] == 'move') {
        // 处理移动操作
        // ...

        // 向所有客户端发送广播消息
        $message = json_encode(array(
            'action' => 'move',
            'data' => 'up'
        ));
        foreach ($client->worker->connections as $connection) {
            $connection->send($message);
        }
    }
};

// ...

6. Unity3D client receives broadcast messages
   The Unity3D client can receive mobile messages by listening to the server's broadcast events. Modify the Unity3D client code as follows:

// ...

private void OnMove(SocketIOEvent e)
{
    var data = e.data.ToDictionary();
    var moveData = data["data"].ToString();
    Debug.Log("Moved " + moveData);
}

// ...

Through the above steps, we can realize the cross-platform game online function of PHP and Unity3D through Workerman. As a transfer platform, the PHP server uses the Workerman framework to implement the long connection function, while the Unity3D client communicates with the server in real time through the Socket.IO-Client library to implement the online game function. I hope this article can provide some help to developers when implementing cross-platform game online functions.

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