let t = 0;

let numLines = 100;

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  strokeWeight(2);

  stroke(255);

  frameRate(15);

}

​

function draw() {

  background(0, 20);

  translate(width / 2, height / 2);

​

  let amplitude = width / 8;

​

  for (let i = 0; i < numLines; i++) {

    let x1 = sin((t + i) / 10) * amplitude;

    let y1 = cos((-t + i) / 10) * amplitude + sin(((t + 1) / 10) * 50);

​

    let x2 = sin((t + i) / 20) * (amplitude * 2) + cos(t + 1) * 10;

    let y2 = cos((-t + i) / 10) * (amplitude * 2);

​

    line(x1, y1, x2, y2);

    push();

    translate(width / 2, height / 2 - height / 2);

    line(x1, y1, x2/2, y2/2);

    pop();

    push();

    translate(width / 2 - width, height / 2 - height / 2);

    line(x1, y1, x2/2, y2/2);

    pop();

  }

​

  t += 0.05;

}

​

function windowResized() {

  resizeCanvas(windowWidth, windowHeight);

  background(0);

}