How to combine PHP and Unity3D to use Workerman to build a real-time battle game

How PHP and Unity3D combine to use Workerman to build a real-time battle game

With the continuous development of network technology, real-time battle games have become a favorite game type for many players. PHP is a server-side scripting language and Unity3D is a cross-platform game engine. Their combination can create an exciting real-time battle game. This article will introduce how to use the Workerman library in PHP to build a real-time battle game based on Websocket to achieve real-time communication and interaction between multiple players.

1. Install Workerman
   First, we need to install the Workerman library. Run the following command on the command line to install Workerman:

composer require workerman/workerman

2. Write server-side code
   Create a PHP file named server.php to implement the server side of the game. In this file, we need to first introduce Workerman’s autoloading file:

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

Then, build a WebSocket server with the listening port 2345:

use WorkermanWorker;

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

$ws_worker->count = 4;

$ws_worker->onMessage = function ($connection, $data) {
    // 处理玩家发送的消息
    // ...
};

Worker::runAll();

In this code, we First, create a Worker instance, specify the listening protocol as WebSocket, and bind it to port 2345. At the same time, we set the number of Worker processes to 4 and process the messages sent by the players in the onMessage callback function.

3. Write client code
   Open Unity3D, create a new scene, and create a Cube object in the scene. Then, create a C# script file named GameClient.cs. In this script file, we need to implement the communication logic with the server side.

using UnityEngine;
using WebSocketSharp;

public class GameClient : MonoBehaviour
{
    private WebSocket webSocket;

    private void Start()
    {
        webSocket = new WebSocket("ws://localhost:2345");
        webSocket.OnMessage += OnMessageReceived;

        webSocket.Connect();
    }

    private void OnDestroy()
    {
        webSocket.Close();
    }

    private void OnMessageReceived(object sender, MessageEventArgs e)
    {
        // 处理接收到的消息
        // ...
    }

    private void Update()
    {
        // 发送消息给服务器端
        // ...
    }
}

In this code, we first create a WebSocket instance and specify the address and port of the server. Then, in the Start function, we bind the OnMessage event callback function to process the received message. In the Update function, we can write code to send messages to the server.

4. Implementing multiplayer battle logic
   In the server-side code, we can identify different players and assign a unique identifier to each player. In the client code, we can carry this identifier when sending the message so that the server side can identify different players.

Server-side code example:

$ws_worker->onMessage = function ($connection, $data) {
    $clientId = $connection->id;
    // 处理玩家发送的消息
    // ...
};

Client-side code example:

private void Update()
{
    // 发送消息给服务器端
    webSocket.Send("Player: " + playerId + " message");
}

Through the above code, we can achieve real-time communication between multiple players, thus Implement a real-time battle game.

Summary

This article introduces how to use the Workerman library in PHP to build a real-time battle game based on Websocket. Through the combination of PHP and Unity3D, we can achieve real-time communication and interaction between multiple players, bringing players a better gaming experience. Of course, the above code example is just a simple demonstration, and actual game development requires functional expansion and optimization based on specific needs. I hope this article will be helpful to developers who want to use PHP and Unity3D to develop real-time battle games.

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