createCanvas(400, 400);

}

​

function draw() {

  background(220);

​

  drawHappyFace(mouseX, mouseY);

}

​

// function to draw a happy face

function drawHappyFace(x, y) {

  push();

  translate(x, y);

  fill(255, 255, 0);

  strokeWeight(15);

  stroke(0);

  circle(0, 0, 200);

  line(-30, -30, -30, -10);

  line(30, -30, 30, -10);

  arc(0, 20, 60, 60, 0, PI);

  pop();

}

​