make lights work, change instrument, make music work

webapp/_local_data_server.js

+var app = require('http').createServer(handler)
+var io = require('socket.io')(app);
+var fs = require('fs');
+
+app.listen(80);
+
+function handler (req, res) {
+  res.writeHead(200);
+  res.write('hi');
+  res.end();
+}
+
+var this_socket = null;
+
+var data = require('./data/record.json');
+var i = 0;
+
+function sendData() {
+  this_socket.emit('brain', data[i] );
+  i++;
+}
+
+
+io.on('connection', function (socket) {
+  i = 0;
+  this_socket = socket;
+  setInterval(sendData, 500);
+});
\ No newline at end of file

webapp/brain.js

@@ -223,7 +223,7 @@ function processPacket() {
                     ++payloadPointer;
 
                     // TODO: move to multi byte code
-                    connect_timer = null;
+                    clearInterval(connect_timer);
 
                     switch (code) {
                         case CODE_ATTENTION:

webapp/index.html

@@ -118,17 +118,6 @@ function sendAudioData(socket, data) {
 var EEG_SOCKET_SERVER = 'http://localhost:3000';
 var AUDIO_SOCKET_SERVER = 'ws://localhost:9000';
 
-var nbrPoints = 48;
-var cycleLength = 60 * 3; // 60*n minutes
-var startTime = (new Date()).getTime();
-var PI = 3.1415927;
-var PI2 = PI * 2;
-var tines = [];
-var lastSound = [];
-
-var data = [];
-var eegData = [];
-
 
 // INITIALIZE WAVEFORM MAKERS
 var waveform = new Waveform({
@@ -207,19 +196,30 @@ var chart = new CanvasJS.Chart("eegWave", {
 chart.render();
 
 
+var nbrPoints = 48;
+var cycleLength = 60 * 3; // 60*n minutes
+var startTime = (new Date()).getTime();
+var PI = 3.1415927;
+var PI2 = PI * 2;
+var tines = [];
+var lastSound = [];
+
+var data = [];
+var eegData = [];
+
 // Instruments we support
 var instruments = [
   "acoustic_grand_piano",
-  "synth_drum",
-  "pad_2_warm",
   "sitar",
-  "bright_acoustic_piano"
+  "bright_acoustic_piano",
+  "acoustic_bass"
 ];
 // Instrument that we play
-var instrument = 0;
+var instrument = 3;
 
-var relaySocket; // TODO: refactor
+var relaySocket;
 
+var attention = 0;
 var meditation = 0;
 
 RefreshFrame = function () {
@@ -232,12 +232,18 @@ RefreshFrame = function () {
     if (Math.floor(a / PI2) !== Math.floor(tines[i] / PI2)) {
       delay = i / 4;
       velocity = 127;
-      note = MIDI.pianoKeyOffset + meditation;
-
-      sendLightData(relaySocket, "red", Math.min(note, 255));
+      note = MIDI.pianoKeyOffset;
+
+      if (attention > 50 && meditation > 50) {
+        note += (attention + meditation) / 2;
+      } else if (attention > 50 && meditation < 50) {
+        note += meditation;
+      } else {
+        note += attention;
+      }
 
       MIDI.noteOn(instrument, note, velocity, delay);
-
+      
       lastSound[i] = ms;
 
       data.push(Math.cos(note));
@@ -264,8 +270,8 @@ var updateChart = function (attn, medit) {
   });
 
   // updating legend text with  updated with y Value 
-  chart.options.data[0].legendText = " Attention " + attn;
-  chart.options.data[1].legendText = " Meditation" + medit; 
+  chart.options.data[0].legendText = " Attention  " + attn;
+  chart.options.data[1].legendText = " Meditation  " + medit; 
 
   chart.render();
 
@@ -284,23 +290,19 @@ socket.on('get-EEG', function (data) {
     var min_data = 0;
     var max_data = 100;
 
+    attention = eeg_data.attention;
     meditation = eeg_data.meditation;
 
     nbrPoints = Math.round(min_nbrPoints + ((max_nbrPoints - min_nbrPoints) * (eeg_data.attention - min_data)) / (max_data - min_data));
     nbrPoints *= 0.5;
 
     updateChart(eeg_data.attention, eeg_data.meditation);
-    RefreshFrame();
 
-    // eegData.push(Math.cos(eeg_data.attention));
-    // eegWaveform.update({
-    //     data: eegData
-    // });
+    sendLightData(relaySocket, "blue", Math.min(eeg_data.attention, 255));
+    sendLightData(relaySocket, "red", Math.min(eeg_data.meditation, 255));
+
+    RefreshFrame();
   } else {
-    // eegData.push(Math.cos(90));
-    // eegWaveform.update({
-    //     data: eegData
-    // });
     console.log('Connecting...')
   }
 });
@@ -319,10 +321,9 @@ window.onload = function () {
       instruments: instruments,
       callback: function() {
         MIDI.programChange(0, 0);
-        MIDI.programChange(1, 118);
-        MIDI.programChange(2, 89);
-        MIDI.programChange(3, 104);
-        MIDI.programChange(4, 1);
+        MIDI.programChange(1, 104);
+        MIDI.programChange(2, 1);
+        MIDI.programChange(3, 32);
 
         MIDI_INITIALIZED = true;
       },