What is React Unity WebGL and how to use

What is React Unity

React and Unity are two different technologies that are often used together to build interactive, real-time applications.

React is a JavaScript library for building user interfaces, while Unity is a game engine that can be used to create 3D and 2D games, as well as other interactive experiences.

Together, these technologies can be used to create highly interactive and immersive applications that can run on a variety of platforms, including web, mobile, and desktop.

How to use React Unity

Here is an example of a simple Unity WebGL game with C# code:

To embed a Unity WebGL build in your React application, follow these steps:

1. Create a new Unity project and build it for WebGL.

2. In your React application, create a new HTML file and add the following code:

<div id="unity-container"></div>

<script src="Build/UnityLoader.js"></script>

<script>

    var gameInstance = UnityLoader.instantiate("unity-container", "Build/Build.json");

</script>

3. Replace "Build" with the name of your WebGL build folder and "Build.json" with the name of your build file.

4. Add the HTML file to your React application and include it in your application's routing.

5. When the route containing the HTML file is loaded, the Unity WebGL build will be embedded in the "unity-container" div.

Exemple 2:

import React from "react";

import { Unity, useUnityContext } from "react-unity-webgl";

function App() {

  const { unityProvider } = useUnityContext({

    loaderUrl: "build/myunityapp.loader.js",

    dataUrl: "build/myunityapp.data",

    frameworkUrl: "build/myunityapp.framework.js",

    codeUrl: "build/myunityapp.wasm",

  });

  return <Unity unityProvider={unityProvider} />;

}

Methode 2:

Here is a simple example of using React and Unity WebGL together:

1. Install the React and Unity WebGL modules using npm:

npm install react unity-webgl

2. Import the React and UnityWebGL components in your React component:

import React, { useState } from 'react'; import { UnityWebGL } from 'unity-webgl';

3. Create a state variable to hold the UnityWebGL configuration and initialize it with the path to your Unity project's WebGL build:

const [unityConfig, setUnityConfig] = useState({

  project: '/path/to/your/unity/project/build/webgl/index.html',

});

4. Add a UnityWebGL component to your React component's render method, passing in the unityConfig state variable as the config prop:

<UnityWebGL

  config={unityConfig}

  width="600"

  height="400"

/>

5. Add an event listener to the UnityWebGL component to listen for events emitted by the Unity game and update the React state accordingly:

<UnityWebGL

  config={unityConfig}

  width="600"

  height="400"

  onProgress={progress => setUnityConfig({ progress })}

  onError={error => setUnityConfig({ error })}

  onLoad={unityContent => setUnityConfig({ unityContent })}

/>

6. You can now use the state variables to display the progress, error, or Unity game content in your React component. For example, you can show a loading screen while the game is loading, display an error message if there is an error, or show the Unity game content once it is loaded.

{unityConfig.error ? (

  <p>An error occurred: {unityConfig.error}</p>

) : unityConfig.progress ? (

  <p>Loading game... {unityConfig.progress}%</p>

) : (

  <div>

    {unityConfig.unityContent}

  </div>

)}

This is just a simple example of using React and Unity WebGL together. You can customize it further by adding more event listeners, integrating with other React components, and using the UnityWebGL component's other props and methods.