Always nice to see implementation-focused explanations of things that are usually taught/learned by building intuition. This[1] video does an excellent job of

Always nice to see implementation-focused explanations of things that are usually taught/learned by building intuition. This[1] video does an excellent job of explaining the mechanic with visuals and code snippets. Carmack's public post[2] on the "bug" of strafe-jumping is endearing in light of how much it influenced game design in the following decades. [1] https://www.youtube.com/watch?v=rTsXO6Zicls https://www.youtube.com/watch?v=rTsXO6Zicls [2] https://www.gamers.org/pub/archives/plans/johnc@idsoftware.com/1999-04-24_1999-06-05 https://www.gamers.org/pub/archives/plans/johnc@idsoftware.c...