function setup(){

  createCanvas(300, 300);

  brown = color(170, 105, 0);

}

​

function draw(){

  background(29, 169, 242);

​

  // Draw the background of the windmill.

  fill(brown);

  quad(130, 130, 170, 130, 220, 300, 80, 300);

​

  // Translate to the center of the screen and draw the sails

  translate(width / 2, height / 2);

​

  // Draw the three sails rotated around the center.

  for (let i = 0; i < 3; i++){

    // Rotate before drawing

    rotate(radians(120));

    fill(brown);

    rect(0, 0, 10, 120);

    fill(255);

    rect(10, 40, 40, 80);

  }

  noLoop();

}