How PHP and Unity3D combine to use Workerman to build a real-time voting system

How PHP and Unity3D combine to use Workerman to build a real-time voting system

Introduction:
With the rapid development of the Internet, there are more and more demands for real-time interactive applications. This article will introduce how to use PHP and Unity3D to build a real-time voting system using Workerman. Through this example, readers can learn how to use these tools to build real-time applications.

1. What is Workerman?
Workerman is an asynchronous event-driven network framework based on PHP, which can be used to build high-performance, high-concurrency, and real-time applications. By using Workerman, we can easily implement real-time communication on the PHP backend.

2. Why choose Unity3D?
Unity3D is a popular cross-platform game engine that provides powerful development tools and APIs. Therefore, we can use Unity3D to build the client of the real-time voting system and communicate with the back-end PHP to achieve real-time voting statistics and display.

3. Environment setup
First, you need to install and configure the PHP environment, and download and install Workerman. The installation of Workerman is very simple, just install it through composer:

composer require workerman/workerman

Next, you need to create a PHP file, such as server.php, to build the server and handle real-time communication. The following is a simple example code:

require_once 'vendor/autoload.php';
use WorkermanWorker;

$worker = new Worker("websocket://0.0.0.0:9876");

$worker->onConnect = function($connection) {
    echo "New client connected
";
};

$worker->onMessage = function($connection, $data) use ($worker) {
    echo "Received message: $data
";
    $worker->sendToAll($data);
};

Worker::runAll();

4. Unity3D client implementation
Unity3D provides the WebSocketSharp plug-in, which can be used to communicate with the WebSocket server. First, create an empty object in Unity3D and attach the WebSocketSharp plugin script. The following is the sample code of the script:

using UnityEngine;
using WebSocketSharp;

public class VoteClient : MonoBehaviour
{
    private WebSocket ws;

    void Start()
    {
        ws = new WebSocket("ws://localhost:9876/");
        ws.OnOpen += (sender, e) => {
            Debug.Log("Connected to server");
        };

        ws.OnMessage += (sender, e) => {
            string message = e.Data;
            Debug.Log("Received message: " + message);
        };

        ws.Connect();
    }
    
    void OnDestroy()
    {
        ws.Close();
    }
}

The above code creates a WebSocket object and establishes a connection with the server. When the connection is successful, "Connected to server" will be printed. At the same time, by listening to the OnMessage event, you can receive messages sent by the server.

5. Voting system implementation
To simplify the example, we assume that the voting system only contains two candidates. In Unity3D, a simple voting interface can be implemented using GUI. The following is a sample code:

using UnityEngine;
using WebSocketSharp;

public class VoteClient : MonoBehaviour
{
    private WebSocket ws;
    private int voteCount1 = 0;
    private int voteCount2 = 0;

    void Start()
    {
        // ...省略之前的代码

        GUI.Button(new Rect(50, 10, 150, 30), "Candidate 1: " + voteCount1);
        GUI.Button(new Rect(50, 50, 150, 30), "Candidate 2: " + voteCount2);

        if (GUI.Button(new Rect(50, 90, 150, 30), "Vote for Candidate 1"))
        {
            voteCount1++;
            ws.Send("vote 1");
        }

        if (GUI.Button(new Rect(50, 130, 150, 30), "Vote for Candidate 2"))
        {
            voteCount2++;
            ws.Send("vote 2");
        }
    }
    
    // ... 省略之后的代码
}

The above code implements two buttons for voting through the GUI and sends the voting results to the server through WebSocket. At the same time, by modifying the voteCount variable, the voting results can be updated in real time.

6. Operation and Testing
Now, we can run the voting system in Unity3D and observe the voting results in real time by connecting to the server. First, start the PHP server, the command is php server.php. Then, run the VoteClient script in Unity3D to vote on the interface.

Through the above steps, we successfully built a real-time voting system using PHP and Unity3D combined with Workerman. Through this example, readers can further explore and practice more complex real-time applications.

Conclusion:
There are more and more real-time interaction application requirements, and real-time voting system is one of the application scenarios. By using PHP, Unity3D and Workerman, we can easily build high-performance, high-concurrency real-time applications. At the same time, through this example, readers can further understand and explore the construction and development process of real-time applications.

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