const TIME_STEP = 0.01;

​

class Walker {

    constructor() {

        this.x = 0;

        this.y = 0;

    this.tx = 0;

    this.ty = 10000;

    }

​

    display() {

        stroke(0);

        point(this.x, this.y);

    }

​

    step() {

    this.x = map(noise(this.tx), 0, 1, 0, width);

    this.y = map(noise(this.ty), 0, 1, 0, height);

    this.tx+=TIME_STEP;

    this.ty+=TIME_STEP;

    }

}

​

function setup() {

  createCanvas(400, 400);

    w = new Walker();

  background(220);

}

​

function draw() {

    w.step();

    w.display();

}