GitHub - proudcat/pixi-webpack-demo: make pixi.js game with webpack and es6+

this tutorial shows you how to make pixi.js game with webpack and es6+, how to optimize image assets and how to config babel to optimize js and convertES6+to ES5.

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required

you should have nodejs installed and have some basic knowledge of package.json file, npm init/install/run command.
you should have google chrome installed for running the project.
basic knowledge of webpack and babel.
it's better for you to have basic knowledge of git, the project pixi-webpack-demo is hosted on github, you can learn step by step by git checkout different branch, now git clone the project。

for easy understanding, paste out the project directory here at the very first.

.
├── dist
│   ├── index.html
│   ├── game.min.879458fc.js
│   └── assets
│       └── bunny.png
├── src
│   ├── index.html
│   ├── assets
│   │   └── bunny.png
│   └── js
│       └── main.js
├── package.json
├── webpack.common.js
├── webpack.dev.js
└── webpack.prod.js

[step1] initialize the project

run command git checkout init to checkout init branch to learn this step.

make directory pixi-webpack-demo, run npm init command under pixi-webpack-demo directory to initialize the project, fill the information, it will create a package.json file finally.
run npm install --save pixi.js command to install pixi.js.

after finish the two step before the package.json file should like this:

{
  "name": "pixi-webpack-demo",
  "version": "1.0.0",
  "description": "make pixi.js game with webpack",
  "main": "src/js/main.js",
  "keywords": ["pixi.js","webpack"],
  "author": "proudcat",
  "license": "MIT",
  "dependencies": {
    "pixi.js": "^5.2.1"
  }
}

create src/index.html。

<html>
  <head>
    <title>pixi-webpack-demo</title>
  </head>
  <body>
  <canvas id="scene"></canvas>
   <!-- we dont need import the entry js file here, webpack will help us to import the file automatically -->
   <!-- we will explain more at "[step2] import webpack" -->
  </body>
</html>

create entry js file src/js/main.js.

import * as PIXI from 'pixi.js'

const app = new PIXI.Application({
  width: 720,
  height: 1280,
  backgroundColor: 0x1099bb,
  view: document.querySelector('#scene')
});

const texture = PIXI.Texture.from('assets/bunny.png');
const bunny = new PIXI.Sprite(texture);
bunny.anchor.set(0.5);
bunny.x = 160
bunny.y = 160
app.stage.addChild(bunny);

app.ticker.add((delta) => {
  bunny.rotation -= 0.01 * delta;
});

[step2] import webpack

run git checkout webpack command to checkoutwebpack branch to learn this step。

run npm install --save-dev webpack webpack-dev-server webpack-cli webpack-merge copy-webpack-plugin imagemin-webpack-plugin html-webpack-plugin command to install the dependencies of webpack.

create webpack.common.js file, this file is webpack common configuration.

const path = require('path')
const HtmlPlugin = require('html-webpack-plugin')
const CopyWebpackPlugin = require('copy-webpack-plugin')
const ImageminPlugin = require('imagemin-webpack-plugin').default
module.exports = {

  //context directory is src
  context: path.join(__dirname, 'src'),
  
  //entry file of the project,(relative to context)
  entry: ['./js/main.js'],
  output: {

    //distribution directory
    path: path.resolve(__dirname, 'dist'),

    /**
     * webpack will import the file for the index.html automatically,though the js file does not exist on disk.
     * the js file will generated after webpack build the project, and the js will inserted at index.html automatically.
     * [hash:8] means unique 8 digit hash generated everytime.
     **/
    filename: 'game.min.[hash:8].js',
  },
  target: 'web',

plugins: [

  //copy all src/assets to dist/assets
  new CopyWebpackPlugin([
    { from: 'assets/',to:'assets/'}
  ], {
    ignore: [],
    debug:'debug',
    copyUnmodified: true
  }),

  //opimize all image file
  new ImageminPlugin({
    test: /\.(jpe?g|png|gif|svg)$/i ,

    // optipng: {
    //   optimizationLevel: 4
    // },

    //this way seems better on mac.
    pngquant: {
      verbose:true,
      quality: '80-90',
    }
  })

  //copy html to dist and insert the js reference.
  ,new HtmlPlugin({
    file:path.join(__dirname,'dist','index.html'),
    template:'./index.html'
  })
]
}

create webpack.dev.js file, the file used for debug phase.

const path = require('path')
const merge = require('webpack-merge')
const common = require('./webpack.common.js')
module.exports = merge(common, {
  devtool: 'inline-source-map',
  mode: 'none',
  devServer: {

    //source code directory.
    contentBase: path.join(__dirname, 'src'),
    port: 8080,

    //if host set to 127.0.0.1, you cannot access the server on local network.
    host: '0.0.0.0',
    hot: true
  }
})

create webpack.prod.js file, the file is used for publishing the project(we will explain more detail at [step3] import babel).

const merge = require('webpack-merge')
const common = require('./webpack.common.js')
module.exports = merge(common, {
  'mode':'production',
  devtool: 'source-map',
  module: {
    rules: [{
      test: /\.js$/,
      exclude: /node_modules/,
      use: {
        loader: 'babel-loader',
        options: {
          presets: [
            ['@babel/preset-env', {
              'corejs': '3',
              'useBuiltIns': 'usage'
            }]
          ],
          plugins: ['@babel/plugin-transform-runtime']
        }
      }
    }]
  }
})

create start command at scriptsection in package.json file.

{
  "name": "pixi-webpack-demo",
  "version": "1.0.0",
  "description": "make pixi.js game with webpack",
  "main": "src/js/main.js",
  "keywords": ["pixi.js","webpack"],
  "author": "proudcat",
  "license": "MIT",
  "scripts": {
    "start": "webpack-dev-server --open 'google chrome' --config webpack.dev.js"
  },
  "devDependencies": {
    "webpack": "^4.41.5",
    "webpack-cli": "^3.3.10",
    "webpack-dev-server": "^3.10.3",
    "copy-webpack-plugin": "^5.1.1",
    "html-webpack-plugin": "^3.2.0",
    "imagemin-webpack-plugin": "^2.4.2",
    "webpack-merge": "^4.2.2"
  },
  "dependencies": {
    "pixi.js": "^5.2.1"
  }
}

now we have import the webpack successfully, run npm start to start the project, it will open google chrome browser automatically,the game is running！try to modify the src/js/main.js file and save,the page will refresh automatically and we can see the modification has taken effect！

[step3] import babel and publish the project

run git checkout master to checkout master branch to learn this final step.

with babel, you can write ES6+ code（these lib is used fo converting ES6+ to ES5, and some pollyfill etc. look babel document for more details）。
- npm install --save-dev @babel/core @babel/plugin-transform-runtime @babel/preset-env babel-loader
- npm install --save core-js @babel/runtime
install rimraf to clean the publish directory dist. run npm install --save-dev rimraf command to install it.

create build command at script section in package.json file.

{
  "name": "pixi-webpack-demo",
  "version": "1.0.0",
  "description": "make pixi.js game with webpack",
  "main": "src/js/main.js",
  "scripts": {
    "start": "webpack-dev-server --open 'google chrome' --config webpack.dev.js",
    "clean": "rimraf dist",
    "prebuild": "npm run clean",
    "build": "webpack --config webpack.prod.js"
  },
  "author": "proudcat",
  "keywords": ["pixi.js","webpack","pixijs","web","game"],
  "license": "MIT",
  "devDependencies": {
    "@babel/core": "^7.8.4",
    "@babel/plugin-transform-runtime": "^7.8.3",
    "@babel/preset-env": "^7.8.4",
    "babel-loader": "^8.0.6",
    "rimraf": "^3.0.2",
    "webpack": "^4.41.5",
    "webpack-cli": "^3.3.10",
    "webpack-dev-server": "^3.10.3",
    "copy-webpack-plugin": "^5.1.1",
    "html-webpack-plugin": "^3.2.0",
    "webpack-merge": "^4.2.2"
  },
  "dependencies": {
    "@babel/runtime": "^7.8.4",
    "core-js": "^3.6.4",
    "pixi.js": "^5.2.1"
  }
}

congratulations! run npm run build command, you can build the project now! you will find out the project will be published in dist directory,jshas combined and optimized, es6+ has converted to es5. all image file has been optimized.

Name		Name	Last commit message	Last commit date
Latest commit History 19 Commits
doc		doc
src		src
.gitignore		.gitignore
LICENSE		LICENSE
README.md		README.md
package-lock.json		package-lock.json
package.json		package.json
webpack.common.js		webpack.common.js
webpack.dev.js		webpack.dev.js
webpack.prod.js		webpack.prod.js

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[step1] initialize the project

[step2] import webpack

[step3] import babel and publish the project

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[step3] import babel and publish the project

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