let yoff1 = 0.01;

let yoff2 = 0.01;

​

​

function setup() {

  createCanvas(windowWidth, windowHeight);

​

let x = 0;

let y1 = height;

let y2 = 0;

let r = 0;

let g = 0;

let b = 0;

let a = 0;

​

  for(i = 0; i < width / 4; i ++){

    bars[i] = new Bar(x, y1, x, y2, r, g, b, a)

    x = i * 4;

    y2 = 0;

    r = random(255);

    g = random(255);

    b = random(255);

    a = random(1);

  }

   r = random(50);

  g = random(50);

  b = random(50);  

     background(r, g, b);

}

​

function draw() {

  blendMode(ADD);

  for(i = 0; i < bars.length; i ++){

    bars[i].show();

    bars[i].grow();

  }

​

}

 function mousePressed() {

  noLoop();

}

​

​

​

class Bar {

  constructor(x1, y1, x2, y2, r, g, b, a) {

    this.x1 = x1;

    this.x2 = x2;

    this.y1 = y1;

    this.y2 = y2;

    this.r = r;

    this.g = g;

    this.b = b;

    this.a = a;

  }

  grow() {

    yoff1 = yoff1 + 0.01;

    noiseSeed(1);

    let n1 = noise(yoff1) * height;

    this.y2 = n1;

    yoff2 = yoff2 + 0.01;

    noiseSeed(2);

    let n2 = noise(yoff2) * height;

    this.y1 = n2;

  }

  show() {

    strokeWeight(random(300));

    stroke(this.r, this.g, this.b, this.a);

    line(this.x1, this.y1, this.x2, this.y2);

  }

​

}