Random distribution using gaussian

let Walker_obj; 

​

function setup() {

  walker_obj = new Walker();

  createCanvas(windowWidth, windowHeight);

  background(10);

}

​

function draw() {

  var r = random(windowWidth/2 - 50 ,windowWidth/2 - 50 + 50);

  //ellipse(windowWidth/2, windowHeight/2, 20, 20);

  // Create walker

  walker_obj.render();

  walker_obj.step();

}

​

class Walker

{

  // CONSTRUCTOR

  constructor()

  {

    this.x  = windowWidth/2;

    this.y  = windowHeight/2;

    this.mean = 0;

    this.std_dev = 0;

    print("walker constructed");

  } // END CONSTRUCTOR

  // FUNCTION

  render()

  {

    noStroke();

    fill(255,10);

    //point(this.x, this.y);

    ellipse(this.x, this.y, 20, 20);

  }

  step()

  {

    // Pure random. Equal probability

//    var r = random() * width;

//    this.x = r;

    // Gaussian Random. Random numbers cluster around a mean value occasionally choosing outlier values

     this.mean = windowWidth/2;

     this.std_dev = 50;

     var gauss_r = randomGaussian(this.mean,this.std_dev); 

    this.x = gauss_r;

  }

}// END CLASS