let count = 0;

function setup() {

  createCanvas(100, 100);

}

​

function draw() {

  background(204);

  x = x + 0.1;

  if (x > width) {

    x = 0;

  }

  line(x, 0, x, height);

  if (count%2 == 0){

    noLoop();

  }else{

    loop();

  }

  console.log(count)

}

​

function mousePressed(){

  count = count+1;

}

​