322 lines
10 KiB
JavaScript
Executable File
322 lines
10 KiB
JavaScript
Executable File
/*
|
|
////////////////////////////////////////////
|
|
nodescore server
|
|
nodescore.kiben.net
|
|
nodescore@kiben.net
|
|
////////////////////////////////////////////
|
|
*/
|
|
|
|
var sio = require('socket.io')
|
|
, http = require('http')
|
|
, ch = require('./chronometer')
|
|
, url = require('url')
|
|
, path = require('path')
|
|
, fs = require('fs')
|
|
, connect = require('connect')
|
|
, static = require('node-static');
|
|
|
|
var mimeTypes = {
|
|
"html": "text/html",
|
|
"jpeg": "image/jpeg",
|
|
"jpg": "image/jpeg",
|
|
"png": "image/png",
|
|
"js": "text/javascript",
|
|
"css": "text/css"};
|
|
|
|
var requirejs = require('requirejs');
|
|
|
|
requirejs.config({
|
|
//Pass the top-level main.js/index.js require
|
|
//function to requirejs so that node modules
|
|
//are loaded relative to the top-level JS file.
|
|
nodeRequire: require,
|
|
findNestedDependencies: true
|
|
});
|
|
|
|
var pinging=0
|
|
console.log("ping set to 0")
|
|
|
|
// run webserver serving static html
|
|
////////////////////////////////////////////
|
|
var httpServer = connect()
|
|
.use(connect.logger('dev'))
|
|
.use(connect.static('www'))
|
|
.use(function(req, res){
|
|
res.end('404\n');
|
|
})
|
|
.listen(8890);
|
|
|
|
////////////////////////////////////////////
|
|
// connect to websockets
|
|
////////////////////////////////////////////
|
|
|
|
|
|
io = sio.listen(httpServer)
|
|
, nicknames = {};
|
|
|
|
//var sequencer = require('./sequencer')
|
|
|
|
io.set('log level', 4); // reduce logging
|
|
io.sockets.on('connection', function (socket) {
|
|
|
|
socket.on('nickname', function (nick, fn) {
|
|
if (nicknames[nick]) {
|
|
fn(true);
|
|
} else {
|
|
fn(false);
|
|
nicknames[nick] = socket.nickname = nick;
|
|
socket.broadcast.emit('announcement', nick + ' connected');
|
|
io.sockets.emit('nicknames', nicknames);
|
|
}
|
|
});
|
|
|
|
/// chat user messages to screens and to log file
|
|
// date format for filename
|
|
var da = new Date(); var dtstring = da.getFullYear()+ '-' + da.getMonth()+ '-' + da.getDate();
|
|
////////////////////////
|
|
/// log messages to file
|
|
socket.on('user message', function (msg) {
|
|
fs.open('logs/chatlog-'+dtstring+'.txt', 'a', 666, function( e, id ) {
|
|
//time format for message stamp
|
|
var dt = new Date();var timestring = dt.getHours() + ':' + dt.getMinutes() + ':' + dt.getSeconds();
|
|
socket.broadcast.emit('user message', socket.nickname, msg);
|
|
var fs = require('fs'), str = msg;
|
|
fs.write( id, timestring+" " + socket.nickname + ": "+ msg+"\n", null, 'utf8', function(){});
|
|
});
|
|
});
|
|
|
|
////////////////////////////////////////////
|
|
// chronometer + sequencer controls (all this should be modularised)
|
|
////////////////////////////////////////////
|
|
|
|
socket.on('stopWatch', function (state) { stopWatch(state);});
|
|
socket.on('stopChr', function () { stopChr(); });
|
|
socket.on('resetChr', function () { resetChr();});
|
|
socket.on('startSeq', function () { startChr(); });
|
|
var chronstate=0;
|
|
|
|
// send the date/time every second
|
|
|
|
xdatetime = setInterval(function () {
|
|
d = ch.xdateTime()
|
|
socket.broadcast.emit('dateTime', d)
|
|
socket.emit('dateTime', d)
|
|
}, 1000)
|
|
|
|
//////////////////////////////
|
|
// /* this should be moved to its own file chronometer.js
|
|
|
|
function chronCtrl (state,interval){
|
|
if (state==1){ console.log("chronControl....onestate")
|
|
var date = new Date(); var starttime = new Date().getTime() / 1000;
|
|
xstopwatch = setInterval(function () {
|
|
var nowtime = new Date().getTime() / 1000;
|
|
now = nowtime-starttime
|
|
hours = parseInt( now / 3600 ) % 24;
|
|
minutes = parseInt( now / 60 ) % 60;
|
|
seconds = parseInt(now % 60);
|
|
milliseconds = Math.floor((now-seconds)*10)%60;
|
|
time =
|
|
(hours < 10 ? "0" + hours : hours) + ":" +
|
|
(minutes < 10 ? "0" + minutes : minutes) + ":" +
|
|
(seconds < 10 ? "0" + seconds : seconds) + "."+
|
|
milliseconds;
|
|
socket.broadcast.emit('chronFromServer', time)
|
|
socket.emit('chronFromServer', time)
|
|
}, 100)
|
|
}
|
|
|
|
if (state==0) { console.log("chronControl....zerostate") ; clearInterval(xstopwatch); }
|
|
|
|
}
|
|
|
|
|
|
// if not already started start the chronometer and sequencer
|
|
function startChr(socket) { chronCtrl(1,100); step(seqA);step(seqB); step(seqC); step(seqD); }
|
|
// stop the chronometer
|
|
function stopChr() { console.log("stop chron"); chronCtrl(0); }
|
|
|
|
function pad(number) { return (number < 10 ? '0' : '') + number }
|
|
function resetChr() {//clearInterval();
|
|
zecsec = 0; seconds = 0; mins = 0; hours = 0;
|
|
var chron = pad(hours) +":"+pad(mins)+ ':'+ pad(seconds)+ ":"+ zecsec
|
|
// send 0.00.00 values to display
|
|
socket.broadcast.emit('chronFromServer', chron)
|
|
socket.emit('chronFromServer', chron)
|
|
}
|
|
|
|
////////////////////////////////////////////
|
|
// magic square sequencer (this should be modularised)
|
|
////////////////////////////////////////////
|
|
// all the variables this sequencer needs are in scoreB.js
|
|
requirejs(['scoreB'],function(scoreB) {});
|
|
|
|
var sequencerState=0;
|
|
var numberoftransects=3
|
|
var order=8
|
|
var countdowntick=function(seq){
|
|
var unit=seq.units[seq.transect%numberoftransects][seq.counter];
|
|
var unitlast=seq.units[seq.transect%numberoftransects][seq.counter-1];
|
|
var voice=seq.voice;
|
|
var tempoms = Math.floor(60000/seq.mm)
|
|
var timemultiplier=1000
|
|
var outcount=4; var incount=4;
|
|
var dur=srcsqr[Math.floor(unit/order)][unit%order] + 4
|
|
var time = dur;
|
|
var ztime=time;
|
|
var totaltime=time
|
|
initPage=function(seq){
|
|
// initiate first page here
|
|
socket.emit("pageIni", voice, unit, time, seq.mm,seq.counter,seq.nextunit );
|
|
socket.emit("pageFlipfromserver", voice, unit, time, seq.mm,seq.counter,seq.nextunit );
|
|
}
|
|
|
|
function sequenCer() {
|
|
if (ztime >= 0 ){
|
|
var counter = ztime
|
|
// flip the page
|
|
if (counter == 0){
|
|
//increment the row position
|
|
seq.counter = (seq.counter + 1) % (order)
|
|
//increment the transect
|
|
if ( seq.counter==0 ){ seq.transect += 1 }
|
|
socket.broadcast.emit("pageFlipfromserver", voice, unit, time, seq.mm,seq.counter,seq.nextunit);
|
|
clearInterval(pulse)
|
|
step(seq);
|
|
}
|
|
|
|
if (counter >= 0 ){
|
|
socket.broadcast.emit('counterText',
|
|
voice, unit, counter,seq.counter,unitlast,seq.transect%numberoftransects);
|
|
socket.emit('counterText',
|
|
voice, unit, counter,seq.counter,unitlast,seq.transect%numberoftransects);
|
|
|
|
if (counter <= outcount ) {
|
|
socket.broadcast.emit('countinFromServer',
|
|
voice, counter,
|
|
"","stop in: ", "red", "transparent",unit);
|
|
socket.emit('countinFromServer',
|
|
voice, counter,
|
|
"","stop in: ", "red", "transparent",unit);
|
|
}
|
|
|
|
if (counter > (totaltime)-incount && counter <= totaltime ) {
|
|
socket.broadcast.emit('countinFromServer',
|
|
voice, counter-(totaltime-incount),
|
|
"","play in: ", "green","transparent",unit);
|
|
socket.emit('countinFromServer',
|
|
voice,counter-(totaltime-incount),
|
|
"","play in: ", "green","transparent",unit);
|
|
}
|
|
|
|
if (counter == (totaltime)-incount ) {
|
|
socket.broadcast.emit('countinFromServer',
|
|
voice, "+",
|
|
"","playing.. ", "green","transparent",unit);
|
|
socket.emit('countinFromServer',
|
|
voice, "+",
|
|
"","playing.. ", "green","transparent",unit);
|
|
}
|
|
}
|
|
|
|
// on each beat do:
|
|
// push out the pulse to metronome
|
|
seq.metrobeat = (seq.metrobeat+1)%seq.beatsinbar ;
|
|
socket.broadcast.emit('metroPulse', tempoms, voice,seq.metrobeat);
|
|
socket.emit('metroPulse', tempoms, voice, seq.metrobeat);
|
|
}
|
|
|
|
// decrement the time
|
|
ztime -= 1
|
|
|
|
// this shows undefined counter output - bug related
|
|
// console.log(counter)
|
|
}
|
|
|
|
var pulse = setInterval(sequenCer, tempoms);
|
|
|
|
socket.on('stopSeq', function () {
|
|
sequenCer.clearInterval
|
|
console.log("sequencer stopping...")
|
|
// grrr why wont this clearInterval work
|
|
sequencerState = 0
|
|
clearInterval(pulse)
|
|
sequenCer.clearInterval(pulse)
|
|
stopChr();
|
|
});
|
|
};
|
|
|
|
step = function (seq) {
|
|
clearInterval(countdowntick);
|
|
countdowntick(seq)
|
|
sequencerState=1;
|
|
initPage(seq)
|
|
};
|
|
|
|
socket.on('resetSeq', function () { resetChr(); });
|
|
|
|
////////////////////////////////////////////
|
|
// some latency calculations
|
|
///////////////////////////////////////////
|
|
|
|
/*
|
|
a ping is periodically broadcast to all connected clients each
|
|
connected returns a pong to the server via an "emit" and in turn
|
|
the server returns each unique client a report of the latency
|
|
via another emit - the emit only sends to the source of the
|
|
request, whereas the broadcast.emit.. broadcasts.. ie to all
|
|
connected clients
|
|
|
|
TODO: smooth range and average out results to remove erratic ping
|
|
times.
|
|
|
|
TODO:
|
|
The result then needs to be used to stagger outgoing messages to
|
|
compensate for latency - how much compensation is more connected
|
|
to the time that any audio/video feed needs to encode/decode as
|
|
the latency of the route from node A to node B is inavoidable?!
|
|
so maybe latency is irrelevant in this context - we just need to
|
|
stagger signals according to encoding decoding times.. hmmm
|
|
*/
|
|
|
|
|
|
// periodically broadcast a ping
|
|
function serverTime(freq) {
|
|
if (pinging==0){ st = setInterval(function() {
|
|
var pinging=1;
|
|
var d = new Date(); var n = d.getTime();
|
|
socket.emit("timeFromServer", n);
|
|
}, 1000); } else console.log("already pinging")
|
|
}
|
|
// receive the pong calculate the latency and
|
|
// return the response to the client
|
|
|
|
socket.on("clientTimeResponse", function(x) {
|
|
var d = new Date(); var n = d.getTime();
|
|
var latency = (n-x)/2;
|
|
//console.log("SERVERTIME:"+x + " LATENCY:" + latency);
|
|
socket.emit("latencyFromServer", latency);
|
|
});
|
|
|
|
|
|
|
|
serverTime(1000);
|
|
|
|
socket.on('disconnect', function(client) {
|
|
console.log(socket.nickname + " is gone..." )
|
|
clearInterval(st);
|
|
|
|
if (!socket.nickname) return;
|
|
|
|
delete nicknames[socket.nickname];
|
|
socket.broadcast.emit('announcement', socket.nickname + ' disconnected');
|
|
socket.broadcast.emit('nicknames', nicknames);
|
|
});
|
|
|
|
});
|
|
|
|
exports.socket= io.sockets;
|
|
exports.httpServer = httpServer;
|
|
|
|
|