<script src="http://spelprogrammering.nu/simple.js">
function start()
{
  hastighet = 0.05;
  vinkel = 0;
  x = 0;
  y = 0;
}

function update()
{
  clearScreen();
  math.point(x, y);

  if (keyboard.left)  { vinkel += 0.1; }
  if (keyboard.right) { vinkel -= 0.1; }

  x += cos(vinkel) * hastighet;
  y += sin(vinkel) * hastighet;
}

</script>