How to Use PHP and Unity3D with Workerman to Build a Real-Time Battle Game

How to Use PHP and Unity3D with Workerman to Build a Real-Time Battle Game

With the continuous development of network technology, real-time battle games have become one of the most popular types of games among players. PHP, as a powerful server-side scripting language, combined with Unity3D, a cross-platform game engine, can create an exciting real-time battle game experience. This article introduces how to use PHP's Workerman library to build a real-time battle game with WebSocket protocol, allowing real-time communication between multiple players.

1. Install Workerman

First, we need to install the Workerman library. Run the following command in the terminal to install Workerman:

composer require workerman/workerman

2. Write the Server-Side Code

Create a PHP file called server.php for the game server. Start by including Workerman's autoload file:

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

Then, build a WebSocket server that listens on port 2345:

use Workerman\Worker;

$ws_worker = new Worker("websocket://0.0.0.0:2345");
$ws_worker->count = 4;

$ws_worker->onMessage = function($connection, $data) {
    // Process messages sent by players
    // ...
};

Worker::runAll();

In this code, we create a Worker instance, specify the WebSocket protocol, and bind it to port 2345. We also set the number of Worker processes to 4 and process the player's messages in the onMessage callback function.

3. Write the Client-Side Code

In Unity3D, create a new scene and add a Cube object. Next, create a C# script called GameClient.cs and implement the communication logic with the server:

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)
    {
        // Process received messages
        // ...
    }

    private void Update()
    {
        // Send messages to the server
        // ...
    }
}

In this code, we create a WebSocket instance, specify the server address and port, bind the OnMessage event to handle received messages, and send messages to the server in the Update function.

4. Implement Multiplayer Battle Logic

In the server-side code, we can assign each player a unique identifier to distinguish different players. On the client side, when sending messages, we include the player ID so that the server can recognize the player.

Server-side code example:

$ws_worker->onMessage = function($connection, $data) {
    $clientId = $connection->id;
    // Process messages sent by players
    // ...
};

Client-side code example:

private void Update()
{
    // Send messages to the server
    webSocket.Send("Player: " + playerId + " message");
}

Through the above code, we achieve real-time communication between multiple players, thereby creating a simple real-time battle game.

Summary

This article introduces how to use PHP's Workerman library in combination with Unity3D to build a real-time battle game based on the WebSocket protocol. By integrating PHP with Unity3D, we can implement real-time communication between multiple players and provide players with a smoother gaming experience. Of course, the above code is just a simple demonstration, and actual game development requires additional functionality and optimizations based on specific needs.