let a = 0;

​

function setup() {

  createCanvas(600,600);

  background(220);

  angleMode(DEGREES);

}

​

function draw() {

 //background(220);

  shape(20,20,30,30);

  shape(40,50,20,30);

  shape(60,30,60,60);

  a = a + 50;

  //automate a

}

//push - start a specific set of instructions (special)

//pop - end the specific set of instructions

​

function shape(x,y,w,h){

    push();

  translate(width/2, height/2);

  rotate(a);

  //automate a

  fill(60,0,40,random(10));

  stroke(1,1);

  beginShape();

  vertex(h*3,w*2);

  vertex(w*3, h+w*2);

  vertex(y*3, x*2);

  vertex(x*2,y*2);

  endShape(CLOSE);

  pop();

}