var NX = 5;

var NY = 15;

var interval_x = 50;

var interval_y = 80;



var roughness_x = 0.4;

var roughness_y = 0.8;

var roughness_angle = 0.1;



var box_x;

var box_y;

var box_angle;

var box_size;



function setup() {



  box_x = [];

  box_y = [];

  box_angle = [];

  box_size = 25;



  for (var i = 0; i < NX; i++) {

    box_x[i] = [];

    box_y[i] = [];

    box_angle[i] = [];

    for (var j = 0; j < NY; j++) {

      box_x[i][j] = interval_x / 2+ box_size / 2 + box_size * i;

      box_y[i][j] = interval_y / 2 + box_size / 2 + box_size * j;

      box_angle[i][j] = radians(random(-roughness_angle * j * NY, roughness_angle * j * NY));

    }

  }



  createCanvas(NX * box_size + interval_x, NY * box_size + interval_y);

  background(500, 500, 500);

  rectMode(CENTER);

  stroke(100, 100, 100);

  noFill();



  for (var i = 0; i < NX; i++) {

    for (var j = 0; j < NY; j++) {

      push();

      translate(box_x[i][j], box_y[i][j]);

      push();

      rotate(box_angle[i][j]);

      push();

      translate(random(-roughness_x * j, roughness_x * j), random(-roughness_y * j, roughness_y * j));

      rect(3, 3, box_size, box_size);

      pop();

      pop();

      pop();

    }

  }



}



function draw() {



}