EndlessKnob for ControlP5 Processing

import controlP5.*;
ControlP5 controlP5;


void setup() {

  // ....

  new EndlessKnob(controlP5, "knob1").setRange(0,360)
  .setPosition(70, 120)
  .setRadius(25);

}


class EndlessKnob extends Knob {
  EndlessKnob(ControlP5 theControlP5, java.lang.String theName)
  { 
    super(theControlP5, theName);
    setConstrained(false);
    setAngleRange(PI*2);
    setStartAngle(PI/2);
  }
  
  void onDrag() {
    super.onDrag();
    float theValue = getValue();
    if (theValue > getMax()){
      theValue -= (getMax() - getMin());
    }
    else if (theValue < getMin()) {
      theValue += (getMax() - getMin());
    }
    setValue(theValue);
  }
}