gistfile1.txt

import hype.*;

HCanvas canvas;
HRect   rect;

import themidibus.*; //Import the library
MidiBus myBus; // The MidiBus

int knobsNum = 8;

float knobValues[] = new float[knobsNum+1];

void setup() {
    size(640,640);
    H.init(this).background(#242424);
    
    MidiBus.list(); // List all available Midi devices on STDOUT. This will show each device's index and name.
    myBus = new MidiBus(this, 0, 3); // Create a new MidiBus using the device index to select the Midi input and output devices respectively.


    canvas = new HCanvas().autoClear(false).fade(5);
    H.add(canvas);

    canvas.add( rect = new HRect(10).rounding(5) ).noStroke().fill(#FF3300).rotate(45).stroke(#ffffff, 200);
    
    
}

void draw() {
    rect.loc( (int)random(width), (int)random(height));
    rect.strokeWeight(knobValues[0]*45);
    H.drawStage();
}

void controllerChange(int channel, int number, int value) {
  // Receive new value on knob modification
  knobValues[number] = value/127.000;
  print(channel + " - channel - ");
  print(knobValues[number] + "\n");
}