humus-old/server/index.js

// 3rd party.
import http from 'http';
// 2nd party.
import {SocketServer} from '@avocado/net/server/socket';
// Import directly for HMR hierarchy.
import 'register-traits';
// Start game server.
import Game from './game';
const socketServer = new SocketServer();

let game;
let httpServer;

function createGame() {
  game = new Game();
  // Listen for connections.
  httpServer = http.createServer();
  httpServer.listen(8420, '0.0.0.0');
  socketServer.on('connect', game.acceptConnection, game);
  socketServer.open(httpServer);
}

function destroyGame(fn) {
  // Stop listening.
  socketServer.off('connect', game.acceptConnection);
  socketServer.close(() => {
    httpServer.close(() => {
      game.destroy(fn);
    })
  });
}

createGame();

if (module.hot) {
  module.hot.accept([
    './game',
    'register-traits'
  ], () => {
    destroyGame(() => {
      createGame();
    });
  });
}