t += 0.01; // Frame rate / interp
drawBackground();
if (t > Math.PI*2) t -= Math.PI*2;
drawRobot();
drawHalo();
drawHand();
</script>
</body>
</html>
```
This is the bare minimum required to run this animation — no explanation, no framing, nothing but the facts laid out in front of you. The canvas should be 800x600, and it will loop forever unless you stop it manually.