let y1;

let x2;

let y2;

​

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  colorMode(HSB, 360, 100, 100, 100)

  x1 = 0

  y1 = 0;

  background(200);

}

​

function draw() {

  background(0, 100, 10, 10);

  //y1 = random(height);

  strokeWeight(3);

  stroke(175, 50, 100);

  for (let i = 0; i < 20; i++){

  x2 = x1 + random(100);

  y2 = y1 + random(100);

  line(x1, y1, x2, y2);

  x1 = x2;

  y1 = y2;

  }

  if (x2 >= width){

    x1 = 0;

  }

  if (y2 >= height){

    y1 = 0;

  }

}

​

function touchStarted(){

  background(map(mouseX, 0, width, 50, 300), 50, 100);

}