webpack.config.js

const path = require('path');
const webpack = require('webpack');

const phaserModule = path.join(__dirname, './node_modules/phaser-ce');
const phaser = path.join(phaserModule, 'build/custom/phaser-split.js');
const pixi = path.join(phaserModule, 'build/custom/pixi.js');
const p2 = path.join(phaserModule, 'build/custom/p2.js');

module.exports = [{
  entry: {
    app: './src/main.js',
    vendor: ['pixi', 'p2', 'phaser'],
  },
  output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname, 'build'),
    publicPath: '/build/',
  },
  module: {
    loaders: [
      { test: /pixi\.js/, use: ['expose-loader?PIXI'] },
      { test: /phaser-split\.js$/, use: ['expose-loader?Phaser'] },
      { test: /p2\.js/, use: ['expose-loader?p2'] },
    ],
  },
  resolve: {
    alias: {
      phaser,
      pixi,
      p2,
    },
  },
  plugins: [
    new webpack.optimize.CommonsChunkPlugin({ name: 'vendor', filename: 'vendor.bundle.js' }),
  ],
},
{
  entry: {
    style: './css/style.js',
  },
  output: {
    filename: 'style.js',
    path: path.resolve(__dirname, 'build'),
    publicPath: '/build/',
  },
  module: {
    loaders: [
      {
        test: /\.css$/,
        loader: 'style-loader!css-loader',
      },
      {
        test: /\.scss$/,
        loaders: ['style-loader', 'css-loader', 'sass-loader'],
      },
    ],
  },
}];