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Sonic's Physics Engine... Isn't a Physics Engine?

Lobsters Hottest · 2026-07-30 Cached

A detailed analysis of the implementation of the physics system in Sonic games: it runs efficiently on a 7MHz 68000 CPU based on predefined collision tiles and simple sensor rules, rather than real-time physics calculations. It also introduces design details such as level collision data, sensor system, dual loop implementation, and the author's progress on an Amiga port.

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#retro-programming

C64 Basic: Game Map Overhead "Camera View"

Hacker News Top · 2026-05-26 Cached

A tutorial explaining how to implement an overhead camera view for game maps in C64 BASIC, with optimization techniques.

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