webpack.common.js

const webpack = require('webpack')
const path = require('path')
const CleanWebpackPlugin = require('clean-webpack-plugin')
const HtmlWebpackPlugin = require('html-webpack-plugin')

// Phaser webpack config
const phaserModule = path.join(__dirname, '/node_modules/phaser/')
const phaser = path.join(phaserModule, 'src/phaser.js')

const phaserPlugin = new webpack.DefinePlugin({
  __DEV__: JSON.stringify(JSON.parse(process.env.BUILD_DEV || 'true'))
})

module.exports = {
  entry: {
    app: './src/index.js'
  },
  module: {
    rules: [
      {
        test:/\.js$/,
        include: path.join(__dirname, 'src'),
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/preset-env']
          }
        }
      }
    ],
  },
  plugins: [
    new CleanWebpackPlugin(['dist']),
    new HtmlWebpackPlugin({
      template: 'src/index.html'
    }),
    phaserPlugin
  ],
  output: {
    filename: '[name].bundle.js',
    path: path.resolve(__dirname, 'dist')
  }
}