node-pong.js

var static = require('node-static');
var io = require('socket.io').listen(8181);
var fileServer = new(static.Server)('.');
var path = require('path');
var url = require('url');
var fs = require('fs');
var net = require('net');

// Server for the controller

var joySocket;   // holds a reference to the socket that a joystick connected to
var webSocketRef;

var joystickServer = net.createServer(function(socket) {
  console.log("Joystick connected");
  if(webSocketRef){
    webSocketRef.emit('joystick-connected', function(){});
  }
  joySocket = socket;
  joySocket.setEncoding("ascii");
  var buffer = "";

  joySocket.on("data", function(data) {
    buffer += data;
    var parts = buffer.split("\n");
    if(parts.length > 1) {
      buffer = parts[1]; // subtle bug
      values = parts[0].split("\t");
      if(values[0] < 450) {
        io.sockets.emit("playera", {velocity:-20});
      } if(values [0] > 550) {
        io.sockets.emit("playera", {velocity:20});
      }
    }
  });

  joySocket.on("end", function() {
    console.log("Joystick disconnected");
  });
});

joystickServer.listen(5001, function() {
  console.log("Joystick server bound on port 5001");
});

// Server for WebSockets
io.sockets.on('connection', function (websocket) {
  webSocketRef = websocket;
  websocket.emit('init', function() {});
  websocket.on('move', function(loc) {
  });

  websocket.on('playera-win', function() {
    console.log("PLAYER A WIN!");
    if(joySocket) {
      console.log("writing out win");
      joySocket.write("win\n");
    }
  });

  websocket.on('playera-loss', function() {
    console.log("PLAYER A LOSS!");
    if(joySocket) {
      console.log("writing out loss")
      joySocket.write("lose\n");
    }
  });

  websocket.on('disconnect', function() {
    console.log("disconnected");
  });
});

function handleRequest(req, res){
  var pathname = url.parse(req.url).pathname,
     components = pathname.split('/');
  
  if(components[1] == 'public') {
    fileServer.serve(req, res);
  } else if(pathname == '/') {
    fileServer.serveFile('/index.html', 200, {'Content-Type':'text/html'}, req, res);
  } else {
    res.writeHead(404, {'Content-Type': 'text/plain'});
    res.end('Page Not Found');
  }
}

var http = require('http');
http.createServer(handleRequest).listen(8080, "localhost");
console.log('Server running at 8080');