// Config vars
var logger = false;
var sceneWidth = 1920;
var prHeight1 = 435;
var prHeight2 = 645;
var sceneHeight = prHeight1 + prHeight2;
var sceneBgColor = 0xFFFFFF;
var lineColor = 0x444444;
var pixelsPerSecond1 = Math.floor(sceneWidth / 10); // nb of pixels per second
var manualFramerate = pixelsPerSecond1 / 4;
var pixelsPerSecond2 = Math.floor(sceneWidth / 60); // nb of pixels per second
var lineInterval = 5000; // means line every 5 seconds
var nbLines = -1;
var noteHeight = 110;
var noteColor = [0xB90000, 0x4BDD71, 0xAF931E, 0x1C28BA, 0x536991,
0xB90000, 0x4BDD71, 0xAF931E, 0x1C28BA, 0x536991,
0xB90000, 0x4BDD71, 0xAF931E, 0x1C28BA, 0x536991,
0xB90000, 0x4BDD71, 0xAF931E, 0x1C28BA, 0x536991,
0xB90000, 0x4BDD71, 0xAF931E, 0x1C28BA, 0x536991,
0xB90000, 0x4BDD71, 0xAF931E, 0x1C28BA, 0x536991];
// Vars
var noteDict = [];
// Timecode method
var timePageLoaded = Date.now();
var offsetMusic = false;
//create an new instance of a pixi stage
var stage = new PIXI.Stage(sceneBgColor);
//create a renderer instance.
var renderer = PIXI.autoDetectRenderer(sceneWidth, sceneHeight);
//add the renderer view element to the DOM
document.getElementById("canvasContainer").appendChild(renderer.view);
var uberContainer = new PIXI.DisplayObjectContainer();
uberContainer.position.x = Math.floor(sceneWidth*9/10);
uberContainer.position.y = 0;
stage.addChild(uberContainer);
function PianoRoll(parentContainer, xInit, yInit, height, linesDown, pixelsPerSecond){
this.container = new PIXI.DisplayObjectContainer();
this.container.position.x = xInit;
this.container.position.y = yInit;
parentContainer.addChild(this.container);
this.linesDown = linesDown;
this.height = height;
this.pixelsPerSecond = pixelsPerSecond;
this.addNote = function(note, startTime, duration, velocity, canal){
//console.log("coucou 1", note, timeFromZero, ts, velocity, pixelsPerSecond, container, prHeight);
var beginX = (offsetMusic + startTime) * this.pixelsPerSecond / 1000;
var width = duration * this.pixelsPerSecond / 1000;
// We draw the rectangle
var graphics = new PIXI.Graphics();
//console.log("beginX = ", beginX, "canal = ", canal, "color = ", noteColor[canal], "width = ", width, "note = ", note, "velocity = ", velocity);
graphics.beginFill(noteColor[canal], (velocity / 128));
var y = (128-note) * this.height / 128; // (128-note) because y = 0 is for note = 128 and y = 128 for note = 0
graphics.drawRect(beginX, Math.floor(y - (noteHeight/2) + ((this.height / 128)/2)), width, noteHeight);
graphics.endFill();
this.container.addChild(graphics);
};
this.addLine = function(lineNb){
var graphics = new PIXI.Graphics();
var x = -this.container.x;
graphics.beginFill(0xFFFF00);
graphics.lineStyle(1, lineColor);
var y = this.linesDown ? this.height - 20 : 0;
graphics.moveTo(x, y);
graphics.lineTo(x, y + 20);
graphics.endFill();
this.container.addChild(graphics);
// Add text
var totalSec = lineNb * lineInterval / 1000;
var hours = parseInt( totalSec / 3600 ) % 24;
var minutes = parseInt( totalSec / 60 ) % 60;
var seconds = totalSec % 60;
var timeStr = (hours < 10 ? "0" + hours : hours) + ":" + (minutes < 10 ? "0" + minutes : minutes) + ":" + (seconds < 10 ? "0" + seconds : seconds);
var fontObj = { font: "10pt Arial", fill: "#444444" };
var t = new PIXI.Text(timeStr, fontObj);
t.x = x + 2;
t.y = this.linesDown ? this.height - 15 : 2;
this.container.addChild(t);
}
this.moveTo = function(diffTime){
this.container.x = Math.floor(diffTime*this.pixelsPerSecond);
};
}
// Init containers
var container1 = new PianoRoll(uberContainer, 0, 0, prHeight1, true, pixelsPerSecond1);
var container2 = new PianoRoll(uberContainer, 0, prHeight1, prHeight2, false, pixelsPerSecond2);
// Line between two containers
var graphics = new PIXI.Graphics();
graphics.beginFill(0xFFFF00);
graphics.lineStyle(1, lineColor);
graphics.moveTo(0, prHeight1);
graphics.lineTo(sceneWidth, prHeight1);
graphics.endFill();
stage.addChild(graphics);
function replaceContainers(){
var diff = (Date.now() - timePageLoaded)/1000;// nb of seconds since page loaded
//console.log("replace ! diff1 = ", container1.x - Math.floor(-diff*pixelsPerSecond1), ", diff 2 = ", container2.x - Math.floor(-diff*pixelsPerSecond2));
container1.moveTo(-diff);
container2.moveTo(-diff);
renderer.render(stage);
}
function addNotes(data){
if(!offsetMusic){
// get difference between the current note timecode and my zero to set the difference between the canvas's zero and the music's zero
// in order to place in real time
var now = Date.now();
var timeBetweenNowAndStart = now - timePageLoaded;
offsetMusic = timeBetweenNowAndStart - data.content[1];
//console.log("start: ", timePageLoaded, ", now: ", now, ", timeBetweenNowAndStart = ", timeBetweenNowAndStart, ", offsetMusic = ", offsetMusic);
}
var note = data.content[3];
var velocity = data.content[4];
if(velocity===0){
if(typeof noteDict[data.content[2]][note]!=='undefined'){
// We close the note in container one
//console.log("coucou 2", data);
var duration = data.content[1] - noteDict[data.content[2]][note].ts;
//addNoteInContainer(note, noteDict[data.content[2]][note].ts, duration, noteDict[data.content[2]][note].velocity, pixelsPerSecond1, container1, prHeight1, data.content[2]);
// addNote(note, startTime, duration, velocity, canal)
container1.addNote(note, noteDict[data.content[2]][note].ts, duration, noteDict[data.content[2]][note].velocity, data.content[2]);
//addNoteInContainer(note, noteDict[data.content[2]][note].ts, duration, noteDict[data.content[2]][note].velocity, pixelsPerSecond2, container2, prHeight2, data.content[2]);
container2.addNote(note, noteDict[data.content[2]][note].ts, duration, noteDict[data.content[2]][note].velocity, data.content[2]);
// delete entry
delete noteDict[data.content[2]][note];
}
}
else{
if(typeof noteDict[data.content[2]]==='undefined'){
noteDict[data.content[2]] = {};
}
noteDict[data.content[2]][note] = {ts: data.content[1], velocity:velocity};
}
}
function addLine(){
nbLines++;
container1.addLine(nbLines);
container2.addLine(nbLines);
}
// Socket management
var sock = null;
var ellog = null;
function log(m) {
if(logger){
ellog.innerHTML += m + '\n';
ellog.scrollTop = ellog.scrollHeight;
}
}
window.onload = function(){
if(logger){
ellog = document.getElementById('log');
}
else{
document.body.removeChild(document.getElementById('log'));
}
var wsuri;
if (window.location.protocol === "file:") {
wsuri = "ws://127.0.0.1:8090/broadcast";
} else {
wsuri = "ws://" + window.location.hostname + ":8090/broadcast";
}
if ("WebSocket" in window) {
sock = new WebSocket(wsuri);
} else if ("MozWebSocket" in window) {
sock = new MozWebSocket(wsuri);
} else {
log("Browser does not support WebSocket!");
window.location = "http://autobahn.ws/unsupportedbrowser";
}
if (sock) {
sock.onopen = function(){
if(logger){
log("Connected to " + wsuri);
}
}
sock.onclose = function(e) {
if(logger){
log("Connection closed (wasClean = " + e.wasClean + ", code = " + e.code + ", reason = '" + e.reason + "')");
}
sock = null;
}
sock.onmessage = function(e) {
if(logger){
log("Got message: " + e.data);
}
addNotes(JSON.parse(e.data));
}
}
};
// Init page and intervals
addLine();
var moveInterval = window.setInterval(replaceContainers, 1000/manualFramerate);
verticalLinesInterval = window.setInterval(addLine, lineInterval);
// Little inteval to show time
var nbSec = 0;
var mySpan = document.getElementById("myspan");
function updateTime(){
nbSec++;
var hours = parseInt( nbSec / 3600 ) % 24;
var minutes = parseInt( nbSec / 60 ) % 60;
var seconds = nbSec % 60;
var timeStr = (hours < 10 ? "0" + hours : hours) + ":" + (minutes < 10 ? "0" + minutes : minutes) + ":" + (seconds < 10 ? "0" + seconds : seconds);
mySpan.innerHTML = timeStr;
}
var secondInterval = window.setInterval(updateTime, 1000);