​

function setup() {

  createCanvas(400, 400);

}

​

function draw() {

  background(220);

  translate(0, height/2);

  let max = 100;

  let amt = y / max; // number between 0 and 1

  let x = easeInQuad(amt) * (width);

  ellipse(x, 0, 20, 20);

  if (y > max) {

    y = 0; 

  } else {

    y += 1;

  }

}

​

​

​

​

​