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I need this book now. Looking through it online, it even has instructions to build your own sound output device that attaches to the parallel port and uses a resistor ladder (actually, 2 ladders because it is stereo) as a DAC to produce audio. Epic.

It also covers state machines with probabilistic state selection for controlling enemies. That's the technique I used for the AI (that's what we called it) code to control monsters and vehicles in "Godzilla: Unleashed" for the Wii.