let y = 0;

let dim = 50.0;

​

function setup() {

  createCanvas(windowWidth, windowHeight);

}

​

function draw() {

  x = x + 2.5;

  // If the shape goes off the canvas, reset the position

  if (x > width + dim) {

    x = -dim;

  }

​

​

  push();

  let noiseLevel = width;

  let noiseScale = 0.002;

  for (let j = 0; j < width; j += 1) {

    // Scale input coordinates.

    let nx = noiseScale * j;

    let nt = noiseScale * x;

    // Compute noise value.

    let y = noiseLevel * noise(nx, nt);

    // Render.

    line(x, 0, x, y);

  }

  pop();

​

  push();

  translate(x, 0);

  circle(0, height / 2, dim);

  stroke("black");

  pop();

}

​