posy,

  d,

  r = 200,

  w,

  h;

​

​

function setup() {

  createCanvas(400, 400);

​

  posx = width * 0.5;

  posy = height * 0.5;

}

​

function draw() {

  background('#51d0de');

​

  strokeWeight(2);

  stroke('#d9d9d9');

  fill('#bf4aa8');

  ellipse(posx, posy, r);

}

​

function mousePressed() {

  d = dist(mouseX, mouseY, posx, posy);

  if (d < r / 2) {

    window.open('https://mobile.twitter.com/KinglakeForest/status/1333154535225769984');

  }

}