build the blog with nix

1 files changed, 0 insertions, 70 deletions

diff --git a/assets/trading-in-the-rain/MusicBox.js b/assets/trading-in-the-rain/MusicBox.js
deleted file mode 100644
index a30074c..0000000
--- a/assets/trading-in-the-rain/MusicBox.js
+++ /dev/null
@@ -1,70 +0,0 @@
-var midiLoaded = false;
-function loadMIDI() {
-  MIDI.loadPlugin({
-    soundfontUrl: "/assets/trading-in-the-rain/soundfont/",
-    instrument: "acoustic_grand_piano",
-    onprogress: (state, progress) => {
-      console.log("MIDI loading...", progress*100, "%");
-    },
-    onsuccess: () => {
-      console.log("MIDI is ready to be used");
-      MIDI.setVolume(0, 127);
-      midiLoaded = true;
-    },
-  });
-}
-
-function MusicBox(priceDist, volumeDist) {
-  this.priceDist = priceDist;
-  this.volumeDist = volumeDist;
-
-  // clamp the keyboard so we're not using the very low notes, they don't sound
-  // good.
-  const noteRange = {
-    //low: 21,
-    //low: 36, // C2
-    low: 60, // C4, middle C
-    high: 108
-  };
-
-
-  function makeScale(tpl) {
-    tplObj = {};
-    for (i in tpl) {
-      tplObj[tpl[i]] = true;
-    }
-  
-    let scale = [];
-    for (let note=noteRange.low; note<=noteRange.high; note++) {
-      let key = MIDI.noteToKey[note].replace(/\d+$/, "");
-      if (tplObj[key]) {
-        scale.push(note);
-      }
-    }
-    return scale;
-  }
-
-  //this.scale = makeScale(["C", "D", "E", "F", "G", "A", "B"]); // cMajor
-  //this.scale = makeScale(["D", "E", "Gb", "G", "A", "Db"]); //dMajor
-  //this.scale = makeScale(["C", "D", "E", "G", "A"]); // cMajor pentatonic
-  this.scale = makeScale(["F", "G", "A", "C", "D"]); // fMajor pentatonic
-
-  this.playNote = (note, holdFor) => {
-    if (!midiLoaded) return;
-    let velocity = 127;
-    MIDI.noteOn(0, note, velocity, 0);
-    MIDI.noteOff(0, note, holdFor);
-  };
-
-  this.playTrades = (trades) => {
-    if (this.priceDist.length == 0) return;
-    for (let i in trades) {
-      let noteIdx = this.priceDist.distribute(trades[i].price, 0, this.scale.length-1);
-      noteIdx = Math.round(noteIdx);
-
-      let holdFor = 0.25 + this.volumeDist.distribute(trades[i].volume, 0, 1.75);
-      let note = this.scale[noteIdx];
-      this.playNote(note, holdFor);
-    }
-  };
-}