function setup() {

  createCanvas(600,600);

}



function draw() {

  background(frameCount%150,150,150);



  rect(random(300),random(300),random(600),random(600));

  fill(150,0,250,200);

  

  circle(random(600),random(600),random(300,300));

  fill(0,250,0,200);

  

 triangle(random(600),random(600),random(600),random(600),random(600),random(600));

 fill(250,0,0,200);

	

  stroke(255,250,0);

}