webtocanvas.js

/*
 * This Codebase is a mess :)
 * Most of the mess is from Alexander 'Pfannkuchensack' Eichhorn
 * Thanks for the great npm packages: tetris-engine, gamepad, serialport, cli-color
 * In use Arduino Uno + 384 WS2812B. Communication wokrs over Serial. RPi/Laptop -> usb ->  Uno
 */
// Including libraries

var app = require('http').createServer(handler),
    io = require('socket.io').listen(app),
    static = require('node-static'); // for serving files

// This will make all the files in the current folder
// accessible from the web
var fileServer = new static.Server('./static');

// This is the port for our web server.
// you will need to go to http://localhost:8080 to see it
app.listen(8080);

// If the URL of the socket server is opened in a browser
function handler (request, response) {

    request.addListener('end', function () {
        fileServer.serve(request, response); // this will return the correct file
    });
}

// Delete this row if you want to see debug messages
//io.set('log level', 1);

// Listen for incoming connections from clients
io.sockets.on('connection', function (socket) {

    // Start listening for mouse move events
    socket.on('mousemove', function (data) {

        // This line sends the event (broadcasts it)
        // to everyone except the originating client.
        socket.broadcast.emit('moving', data);
    });
});