forked from dktr0/extramuros
-
Notifications
You must be signed in to change notification settings - Fork 2
/
sequencer.js
161 lines (126 loc) · 4.4 KB
/
sequencer.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
const EDITOR_ID = "edit";
const EDITOR_CYCLE_ID = "editor-cycle-";
const EDITOR_TRIGGER_ID = "editor-trigger-";
let isStarted = false;
let isRunning = false;
let isRepeating = false;
let cycleCounter = 1;
let editorNumber = 1;
let trigger = 0;
function abletonOSCMessage (command) {
let msg = { request: "ableton", command: command };
sequencerWs.send(JSON.stringify(msg));
}
function resetSequencer(number, started) {
isStarted = started;
isRunning = false;
editorNumber = number;
cycleCounter = 1;
}
function start() {
resetSequencer(1, true);
abletonOSCMessage('play');
let startBtn = document.getElementById("play");
startBtn.src = 'assets/img/play-green.png';
}
function record() {
resetSequencer(1, true);
abletonOSCMessage('record');
let startBtn = document.getElementById("play");
startBtn.src = 'assets/img/play-green.png';
let recordBtn = document.getElementById("record");
recordBtn.src = 'assets/img/record-red.svg';
}
function startFrom(number) {
removeActiveClass();
abletonOSCMessage('play');
resetSequencer(number, true);
}
function toggleRepeat(elem) {
isRepeating = !isRepeating;
if (isRepeating) {elem.children[0].src = 'assets/img/repeat-orange.png'}
else {elem.children[0].src = 'assets/img/repeat.png'}
}
function stop() {
removeActiveClass();
resetSequencer(1, false);
abletonOSCMessage('stop');
evaluateCode("editorX", "hush");
let startBtn = document.getElementById("play");
startBtn.src = 'assets/img/play.svg';
let recordBtn = document.getElementById("record");
recordBtn.src = 'assets/img/record.svg';
}
function removeActiveClass () {
const editors = document.getElementsByTagName("code");
for (let i = 0; i < editors.length; i++) {
editors[i].classList.remove('active');
}
}
function next(number) {
const prevEditor = document.getElementById(EDITOR_ID + (number - 1));
const editor = document.getElementById(EDITOR_ID + number);
if (editor === null && isRepeating) {
editorNumber = 1;
const editor = document.getElementById(EDITOR_ID + editorNumber);
activateEditor(editor, prevEditor)
}
else if (editor === null) {
stop();
} else {
activateEditor(editor, prevEditor)
}
}
function activateEditor(editor, prevEditor) {
retriggerAnimation(editor.id);
editor.classList.add('active');
if (prevEditor !== null) {
prevEditor.classList.remove('active');
}
evaluateCode(editor.id, editor.innerText);
}
function linkWS() {
window.WebSocket = window.WebSocket || window.MozWebSocket;
var url = 'ws://' + location.hostname + ':' + 8001;
console.log("attempting websocket connection to " + url);
let linkWS = new WebSocket(url);
linkWS.onopen = function () {
console.log("extramuros websocket connection opened");
};
linkWS.onerror = function () {
console.log("ERROR opening extramuros websocket connection");
};
linkWS.onmessage = function (m) {
var data = JSON.parse(m.data);
if(data.type === 'linkInfos') {
document.getElementById("tempo").innerText = Math.round(data.tempo);
if (data.numPeers === 0 || data.numPeers === undefined) {
document.getElementById("peers").innerText = "Link";
} else {
document.getElementById("peers").innerText = data.numPeers + " Link";
}
}
if(data.type === 'linkBeat') {
const beat = data.phase;
document.getElementById("phase").innerText = Math.trunc(data.phase) + 1 + "/4";
if (Math.trunc(data.phase) === 0) {
trigger = document.getElementById("cycles-trigger").value - 1;
}
if (isStarted && beat > trigger && trigger > 0.0) {
if (!isRunning) {
next(editorNumber);
isRunning = true
} else {
let editorCycles = parseInt(document.getElementById(EDITOR_CYCLE_ID + editorNumber).innerText, 10);
if (cycleCounter > editorCycles) {
cycleCounter = 1;
editorNumber++;
next(editorNumber);
}
}
trigger = 0.0;
cycleCounter++;
}
}
}
}