​

let angle = 0;

let r = 300;

​

​

​

function setup() {

  createCanvas(windowWidth, windowHeight);

}

​

function draw() {

  let x = mouseX;

  let y = mouseY;

  let ix = width - mouseX;  // Inverse X

  let iy = height - mouseY; // Inverse Y

  background(0, 10);

  fill(255);

  ellipse(x, height/2, y, y);

  fill(0);

  ellipse(ix, height/2, iy, iy);

  translate(windowWidth/2, windowHeight/2);

  stroke(255);

  strokeWeight(3);

  noFill();

​

  //let increment = map(mouseX, 0, width, PI, 0.01);

  let increment = map(mouseX, 0, width, 0.01, PI);

  beginShape();

  for (let a = 0; a < TWO_PI; a += increment) {

    let r1 = r + random(-30, 10);

    let x = r1 * cos(a);

    let y = r1 * sin(a);

    vertex(x, y);

  }

  endShape(CLOSE);

}  

function mousePressed() {

  let fs = fullscreen();

  fullscreen(!fs);

}

​

function windowResized() {

  resizeCanvas(windowWidth, windowHeight);

}