Reminds of some assembly (!) source code I read once for, I think it was, Super Mario brothers as ported to the TI-89 calculator. Every object in the game had t

Reminds of some assembly (!) source code I read once for, I think it was, Super Mario brothers as ported to the TI-89 calculator. Every object in the game had the same bit structure (position, velocity, weight, width, some others), with the final word being a pointer to an "update" function. The game loop was a very straightforward physics update on each object followed by a call to its update function.