/*
* DESIGNED BY SEONG KI LEE
* MASTER OF ADVANCED STUDIES CAAD DARCH ETH
*/


// VARIABLES
float posX = 200;
float posY = 200;
float w = 100;
float h = 100;
int level = 6;

void setup()
{
  size(400, 400);
  background(200, 200, 200);
  noStroke();
  smooth();
  noLoop();
  rectMode(CENTER);
}

void draw()
{
  rectRecursion(posX, posY, w, h, level);
}


void rectRecursion(float x, float y, float lw, float lh, int lv)
{
  fill(40*lv, 0, 0, 20*(6-lv));
  
  // DREAW RECTANGULARS
  rect(x, y, lw, lh); 
  rect(x - lw, y - lh, lw, lh);
  rect(x - lw, y + lh, lw, lh);
  rect(x + lw, y - lh, lw, lh);
  rect(x + lw, y + lh, lw, lh);

  if(lv > 1)
  {
    lv = lv - 1;
    // CALL THE RECTRECURSION ITSELF
    rectRecursion(x + lw/2, y + lh/2, lw/2, lh/2, lv);
    rectRecursion(x + lw/2, y - lh/2, lw/2, lh/2, lv);
    rectRecursion(x - lw/2, y + lh/2, lw/2, lh/2, lv);
    rectRecursion(x - lw/2, y - lh/2, lw/2, lh/2, lv);
  }
}