boolean faux_isAnyButtonPressed(){
  // this function is to be replaced by a function set up for the hardware.
  // this function will turn on power to all buttons
  // then check the button input pin
  // and return true if the input pin is on.
  boolean yes = false;
  if(mousePressed){
    
    int i = 0;
    while (i < on.length && !yes){
      float dx = mouseX - nodes[i].p.x;
      float dy = mouseY - nodes[i].p.y;
      float d2 = sq(dx) + sq(dy);
      if(d2 <= r2){
        yes = true;
      }
      i++;
    }
  }
  return yes;
}


boolean faux_isAButtonOnInRange(int start, int end){
  boolean yes = false;
  if(mousePressed){
    
    int i = start;
    while (i < on.length && i < end && !yes){
      float dx = mouseX - nodes[i].p.x;
      float dy = mouseY - nodes[i].p.y;
      float d2 = sq(dx) + sq(dy);
      if(d2 <= r2){
        yes = true;
      }
      i++;
    }
  }
  return yes;
  
}