createCanvas(windowWidth, windowHeight);

}

​

let yPeriodSec = 2;

​

function draw() {

  background(255, 180, 255);

​

  let x = width / 2;

​

  let yAmplitude = height;

  let yOffset = 0;

​

  let yPeriod = yPeriodSec * getTargetFrameRate();

  let y = yAmplitude * (sin((TWO_PI / yPeriod) * frameCount) + 1) * 0.5;

​

  ellipse(x, y + yOffset, 25);

}

​