import processing.opengl.*;
import java.awt.Color;

PFont font;

ArrayList cubes;
int maxCubes = 10; // Max num of cubes


void setup() {
  size(600, 600, OPENGL);

  smooth();

  //Load font for debug Info
  font = loadFont("LucidaGrande-12.vlw");
  textFont(font);


  //Create ArrayList of Cubes
  cubes = new ArrayList();
  for (int i = 0; i < maxCubes; i++) {
    cubes.add(new cube(int(random(100, 200)), int(random(100, 200)), 200));
  }
}
void draw() {
  background(90);
  lights();
  for (int i = cubes.size() - 1; i >= 0; i--) {
    cube Cube = (cube) cubes.get(i);
    Cube.run();
  }
  info();
}

//Debug Info
void info() {
  text("Frame", 10, 20);
  text(frameCount, 60, 20);
  text("FPS", 10, 40);
  text(round(frameRate), 60, 40);
}

class cube{

  int xSpin; //Amount of rotation on Y
  int ySpin; //Amount of rotation on Y
  int dim; //Dimension (width)

  cube(int _xSpin, int _ySpin, int _dim){

    xSpin = _xSpin;
    ySpin = _ySpin;
    dim = _dim;

  }

  void run(){
    pushMatrix();
    translate(width/2, height/2);
    noStroke();
    fill(255);
    rotateX(PI*frameCount/xSpin);
    rotateY(PI*frameCount/ySpin);
    box(dim);
    popMatrix();
  }
}