let webMic; // Declare variable to hold laptop audio capture

let feedbackButton; // Declare variable to hold last toggleMic button state

let feedback = true;

​

function setup() {

  createCanvas(640, 360);

  //

  webCam = createCapture();

  webCam.size(640, 360);

  webCam.hide();

  pixelDensity(1);

  noStroke();

  fill(0);

​

  // Assign a new P5.AudioIn() object to variable webMic

  webMic = new p5.AudioIn();

​

  // Start with the mic off

  webMic.start();

​

  // Create a button to toggle the laptop mic off and on

  feedbackButton = createButton('Gimmie Some Feedback!');

  // button.position(20, 20);

  feedbackButton.mousePressed(toggleMicInput);

​

}

​

function draw() {

  background(200);

​

  print(feedback);

​

  webCam.loadPixels();

​

  let stepSize = round(map(webMic.getLevel(), 0, 0.5, 8, 256));

  for (let y = 0; y < webCam.height; y += stepSize) {

    for (let x = 0; x < webCam.width; x += stepSize) {

      let i = y * webCam.width + x;

      let darkness = (255 - webCam.pixels[i * 4]) / 255;

      let radius = stepSize * darkness;

      // print(darkness);

      ellipse(x, y, radius);

​

    }

​

  }

​

}

​

// A function to start and stop sound input from the mic

function toggleMicInput() {

  if (feedback == false) {

    webMic.stop();

    feedbackButton.html('Gimmie Some Feedback!');

​

  } else {

    webMic.start();

    feedbackButton.html('Stop The Madness!');

​

  }

  // feedback = !feedback;

​

}