How to use Workerman to implement a distributed game server with PHP and Unity3D

How to use Workerman to implement a distributed game server for PHP and Unity3D

Introduction:
With the continuous development of online games, the performance and stability of game servers have become more and more important. To cope with this need, distributed game servers have become a common solution. In this article, we will introduce how to use the Workerman framework to implement a distributed game server with PHP and Unity3D to improve the performance and stability of the game.

1. What is Workerman?
Workerman is a high-performance PHP Socket framework that can be used to develop high-performance network applications, including game servers. Workerman is based on event-driven and non-blocking IO model and can support a large number of concurrent connections and high-performance data transmission. It is characterized by being lightweight, easy to use, and has good compatibility.

2. Preparation
Before starting, we need to prepare the following environment:

1. PHP environment: Make sure that PHP has been installed and can run PHP commands.
2. Workerman framework: Use Composer to install the Workerman framework and execute the command: composer require workerman/workerman.
3. Unity3D environment: Unity3D development environment.

3. Build the server side

1. Create a server-side script
   First, we need to create a PHP script to run the server-side logic. Create a file named server.php and write the following code:

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

use WorkermanWorker;

// 创建一个Worker监听2345端口，使用websocket协议通信
$worker = new Worker('websocket://0.0.0.0:2345');

// 启动4个进程对外提供服务
$worker->count = 4;

// 设置服务器逻辑
$worker->onMessage = function($connection, $data)
{
    // 处理客户端传输过来的数据

    // 回复客户端
    $connection->send('Hello, Unity3D!');
};

// 启动worker
Worker::runAll();
?>

In this code, we use the Workerman framework to create a server listening on port 2345 and configure 4 workers process. After the server receives the data from the Unity3D client, it will reply with a simple message.

2. Run the server
   In the terminal, enter the directory where server.php is located, and execute the command php server.php to start the server. If everything goes well, you will see output information similar to the following:

-------------------------
Workerman starting...
-------------------------
Workerman started...

4. Unity3D Client

1. Create Unity3D Project
   Create a new one using Unity3D project and import the SocketIO plugin for communicating with the server.
2. Writing client script
   Create a C# script named SocketClient.cs in Unity3D and write the following code:

using UnityEngine;
using SocketIO;

public class SocketClient : MonoBehaviour
{
    private SocketIOComponent socket;

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

        // 监听服务器发送过来的数据
        socket.On("message", OnMessage);

        // 连接服务器
        socket.Connect();

        // 向服务器发送数据
        socket.Emit("message", "Hello, Server!");
    }

    private void OnMessage(SocketIOEvent e)
    {
        // 处理服务器发送过来的数据
        Debug.Log(e.data.ToString());
    }
}

In this code, we use The SocketIO plugin creates a client script. When the client starts, it connects to the server and sends a message. At the same time, we also listen to the messages sent by the server and output them in the console.

5. Test

1. Compile the Unity3D project
   Compile the project in Unity3D and ensure that the SocketIO plug-in has been imported correctly.
2. Run Unity3D client
   Start Unity3D client, open the console, you will see output similar to the following:

Hello, Unity3D!

This indicates that the server has received and processed it correctly receives data from the Unity3D client and replies with a simple message.

Conclusion:
Through the introduction of this article, we have learned how to use the Workerman framework to build a distributed game server for PHP and Unity3D. Workerman's high performance and stability provide great convenience for us to develop game servers. I hope this article can be helpful to everyone's game server development work.

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