squares >:)

squares.pde

void setup(){
  size(600,600,P2D);
  rectMode(CENTER);
  noFill();
  frameRate(30);
}

float t;

void squares(){
  for(int i=0; i<8; i++){
    pushMatrix();
    translate(width/2,height/2);
    rotate(QUARTER_PI*i);
    rect(180*cos(PI*t),0,180,180);
    popMatrix();
  }
}

void draw(){
  t = .0125*frameCount;
  background(0);
  stroke(240);
  strokeWeight(10);
  squares();
  stroke(0);
  strokeWeight(6);
  squares();
}