p5 Interactivity

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By adding simple online " happyFace(mouseX, mouseY, pmouseX, pmouseY);" code I was able to write the reactionary code using the mouse.

Code: https://editor.p5js.org/heestar/sketches/DBuxceGCP
Fullscreen: https://editor.p5js.org/heestar/full/DBuxceGCP

I try to add code to react when the mouse is pressed but fail to active it.
 if (mouseIsPressed == true) {
    ellipse(x - offset, y - offset, eyeDiam, eyeDiam);
    ellipse(x + offset, y - offset, eyeDiam_2, eyeDiam_2);
  }



 Mouse click code: https://editor.p5js.org/heestar/sketches/a2UzX8ZYN

 // Smile
  var startAng = .1 * PI
  var endAng = .9 * PI
  var smileDiam = .6 * diam;
  //frown
  var _startAng = -2.75
  var _endAng = -6.55
  var _smileDiam = .56 * diam;
  strokeWeight(8);
  arc(x, y, smileDiam, smileDiam, startAng, endAng);
  if (mouseIsPressed == true)
    //hide (arc(x, y, smileDiam, smileDiam, startAng, endAng));
  arc(x, 575, smileDiam, _smileDiam, _startAng, _endAng);
I can't get the existing smile line to go away.. my hide code line isn't working 

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