Line

let strings = [];

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  background(100);

  noFill();

  background(0);

  stroke(255);

}

​

function mousePressed() {

  let newString = {

    x: mouseX,

    y: mouseY,

  }

  strings.push(newString);

  }

​

  function draw() {

    for (let i = 0; i < strings.length; i++) {

      let String = strings[i];

      newx = String.x + random(-10, 10);

      newy = String.y + random(-10, 10);

      line(String.x, String.y, newx, newy)

      String.x = newx

      String.y = newy

    }

​

  }