Sure! Here's an example of a simple billiards game implemented as a single HTML file, including JavaScript code enclosed in script tags:
This code sets up a simple billiards game where a ball moves around the canvas. The canvas serves as the billiards table, and the ball (represented by an orange circle) bounces off the edges. You can run this HTML file in a web browser, and the ball will start moving. You can further enhance the game by adding features like aiming, shooting, and collision detection with other balls or pockets.