Recursion 1

var r = new Rune({

  container: "#canvas",

  width: 800,

  height: 600

});

​

drawCircle(r.width/2, r.height/2, 700);

​

function drawCircle(x, y, size)

{

​

  // draw circle

  r.circle(x, y, size)

    .fill(Rune.random(30, 200))

    .stroke(false);

​

  // call the function again. We need an if statement,

  // otherwise it goes on forever

  if(size > 10)

  {

    drawCircle(x, y, size - 30);

  }

}

​

r.draw();