Found in 2 comments on Hacker News
megaman22 · 2018-02-26
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I wish I'd learned about state machines... Most of the potentially interesting CS courses at my college were taught by terrible professors who were allergic to code.
Thankfully I enjoyed screwing around with game programming, and picked up Matt Buckland's Programming Game AI by Example[1]. I've used essentially the same FSM design described there over and over in my career.
https://www.amazon.com/Programming-Example-Wordware-Develope...