Sure! Below is an example of a simplified billiards game implemented in a single HTML file using JavaScript. Please note that you might need to adjust the game mechanics and styling according to your requirements.
This example creates a billiards game where you can drag the red ball using touch/mouse input. The goal is to avoid pocketing the ball into the black hole (pocket). When the ball enters the pocket, the game restarts. The code uses HTML5 canvas and basic collision detection to achieve this simple gameplay.