Comprehensive application of PHP, Unity3D and Workerman: how to create a new AR game

Integrated application of PHP, Unity3D and Workerman: How to create a new AR game

With the rapid development of AR (augmented reality) technology, AR games are becoming more and more popular. This article will introduce how to use the three technologies of PHP, Unity3D and Workerman to create a new AR game, and provide corresponding code examples.

Step One: Preparation
Before starting, we need to prepare the following tools and environment:

1. A server with PHP installed, it is recommended to use Apache or Nginx as Web server.
2. The Unity3D development environment can be downloaded and installed from the Unity official website.
3. Workerman framework can be installed through Composer.

Step 2: Create an AR game scene
In Unity3D, we need to create an AR game scene and import the required resources. You can use the AR Foundation plug-in provided by Unity to simplify the AR development process.

First, open a new project in Unity, select a 2D or 3D template, and select the appropriate configuration according to your needs. Then, import the AR Foundation plugin, which can be found and downloaded in the Unity Asset Store. After importing the plug-in into your project, you can start creating AR scenes.

Add required game objects to the scene, such as characters, props or background elements. You can use Unity’s physics system, animation system and other functions for further design. At the same time, Unity needs to be connected to the web server in order to transfer game data.

Step Three: Create a Game Server Using PHP
In this step, we will use PHP to create a simple game server that Unity3D can communicate with. First, create a file named "server.php" and write the following code in it:

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

use WorkermanWorker;

$worker = new Worker();
$worker->count = 1;

$worker->onMessage = function ($connection, $data) {
    // 处理接收到的数据
    $message = json_decode($data, true);
    
    // 根据游戏逻辑进行处理

    // 将结果返回给Unity
    $connection->send(json_encode($result));
};

$worker->listen('http://0.0.0.0:8888');
Worker::runAll();

The above code uses the Workerman framework to create an HTTP server and listen to port 8888. When a request from Unity is received, the data is processed and the processing results are returned to Unity.

Step 4: Unity communicates with the server
In Unity3D, we need to write a script to communicate with the server. First, create a C# script named "GameController.cs" and write the following code in it:

using UnityEngine;
using UnityEngine.Networking;

public class GameController : MonoBehaviour
{
    private string serverUrl = "http://localhost:8888/server.php";

    private void Start()
    {
        // 向服务器发送请求
        StartCoroutine(SendRequest());
    }

    private IEnumerator SendRequest()
    {
        UnityWebRequest www = UnityWebRequest.Get(serverUrl);
        yield return www.SendWebRequest();

        if (www.isNetworkError || www.isHttpError)
        {
            Debug.Log(www.error);
        }
        else
        {
            // 处理接收到的数据
            string result = www.downloadHandler.text;
            // 根据游戏逻辑进行处理
        }
    }
}

The above code uses Unity's UnityWebRequest class to send HTTP requests and receive data returned by the server. You can perform data processing according to actual needs and operate the game according to game logic.

Step 5: Run the project and test
After completing the above steps, we can run the Unity project and run the PHP server on the web server. Make sure the two can communicate properly.

Click the Play button in Unity to run the project. Unity will send an HTTP request to the PHP server, and the PHP server will return the processing results. According to actual needs, the game interface can be updated in Unity in real time or other operations can be performed.

Summary
This article introduces how to use the three technologies of PHP, Unity3D and Workerman to create a new AR game. Through the server-side implementation of PHP and the client-side implementation of Unity3D, communication and data exchange between the two are realized. I hope this article can help you understand AR game development and inspire you to try to create more interesting AR games.

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