var speed = 3

function setup(){

  createCanvas(600, 400)

  background(255)

  r = random(255);

  g = random(255);

  b = random(255);

​

button = createButton('enter');

button.position(20, 65);

button.mousePressed(nutton);  

​

function nutton(){

  background(random(r), random(b), random(g))

  stroke(r, b, g)

  strokeWeight(4)

  ellipse(x, random(600), random(100), random(100))

​

​

}

}

function draw(){

​

  stroke(r, b, g)

  strokeWeight(4)

  ellipse(x, (200), (100), random(100))

  if (x > 565){

    speed = -3

    stroke(r, b, g)

    fill(random(r), random(b), random(g))

  }

  if (x < 0){

   speed = 3 

  fill(random(r), random(b), random(g))

  }

x = x + speed

​

​

}

​

function mousePressed() {

  // Check if mouse is inside the circle

  let d = dist(mouseX, mouseY, 360, 200);

  if (d < 100) {

    // Pick new random color values

    r = random(255);

    g = random(255);

    b = random(255);

  }

}

​

​