Midi relay za kegel

.gitignore

@@ -2,3 +2,4 @@
 .*~undo-tree~
 .~lock*#
 .*.swp
+node_modules

kegel.js

@@ -0,0 +1,101 @@
+const WebSocket = require('ws')
+const osc = require('osc')
+
+const ip = process.argv[2]
+
+//const ws = new WebSocket(`ws://${ip}:6676`)
+
+/*
+const wsp = new osc.WebsocketClientPlugin({
+  host: ip,
+  port: 6676
+})
+*/
+const oscWS = new osc.WebSocketPort({
+  url: `ws://${ip}:6676`,
+  metadata: false
+})
+
+oscWS.on('ready', () => {
+  console.log(`Povezan sem na ${ip}`)
+
+  /*
+  setInterval(() => {
+    console.log('ping')
+    oscWS.send({ address: '/ping', args: [true]})
+  }, 500)
+  */
+})
+
+let midiOn = false
+let midiNotes = {}
+
+const zaznava = 2000
+
+let cakaj = false
+const cakajInterval = 1 / 5
+//const razponTona = [0.1, 0.5]
+const razponTona = [0.001, 0.002]
+
+
+oscWS.on('message', ({ address, args }) => {
+  //console.log('GGOT MSG OSC', address, args)
+  const acX = args[1]
+  if (address == '/accel') {
+    if (acX > zaznava && !cakaj) {
+      if (cakaj) {
+        console.log("CAKAM!")
+        return
+      }
+
+      cakaj = true
+
+      // Pavza
+      setTimeout(() => {
+        console.log("nehaj cakat")
+        cakaj = false
+      }, cakajInterval * 1000)
+      console.log("SEND MIDI!")
+
+
+      // Od 24 do 48
+      const accval = Math.sin((args[1] - zaznava) / 1000)
+      const visina = 24 + Math.round(((accval / 2) + 0.5) * 24)
+
+      midiNotes[visina] = true
+      //console.log('posiljam midi', [144, visina, 127])
+      oscWS.send({
+        address: '/midi',
+        args: [144, visina, 127]
+      })
+      console.log('vklopi', visina)
+
+      midiOn = true
+
+      // Ugasni cez en cas
+      let izklop = razponTona[0] + Math.random() * (razponTona[1] - razponTona[0])
+      setTimeout(() => {
+        oscWS.send({
+          address: '/midi',
+          args: [128, visina, 127]
+        })
+        console.log('izklopi', visina)
+      }, izklop * 1000) 
+    }
+
+    /*
+    if (args[1] < zaznava && midiOn) {
+      Object.keys(midiNotes).forEach(visina => {
+        oscWS.send({
+          address: '/midi',
+          args: [128, visina, 127]
+        })
+      })
+      midiOn = false
+    }
+    */
+  }
+})
+ 
+
+oscWS.open()

package.json

@@ -0,0 +1,13 @@
+{
+  "name": "kegel",
+  "version": "0.1.0",
+  "description": "kiberkegel",
+  "dependencies": {
+    "nodemon": "^2.0.16",
+    "osc": "^2.4.2",
+    "ws": "^7.3.1"
+  },
+  "scripts": {
+    "start": "npx nodemon kegel.js"
+  }
+}