Inspired by Frieder Nake's ER56 / 264 (1963) and Vera Molnár's Du Cycle: Segments et leurs Croisements No. 9 (1973)

*/

​

let startX;

let startY;

let endX;

let endY;

​

let seed = 1;

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  stroke(250,0,100);

  strokeWeight(5);

}

​

function draw() {

  background(0);

  randomSeed(seed)

  for (let i = 0; i < 100; i++) {

    startX = random(20, width - 2);

    startY = random(20, height - 2);

​

    if (random(10) < 1) {

      let amount = random(1,20);

      endX += amount;

      endY = startY + amount;

    } else {

      let amount = random(1, 2);

      endY += amount;

      endX = startX + amount;

    }

    line(startX, startY, endX, endY);

  }

}

​

function mouseDragged() {

  seed = random(1000);

}