Tricks of the Game-Programming Gurus is a book written by André LaMothe, John Ratcliff, Mark Seminatore, and Denise Tyler, and published by Sams Publishing in July 1994. It is a 746-page introduction to game programming focused on C- and x86 assembly-language coding for PCs running MS-DOS. It is notable due to its strong focus on Doom as a design reference, being prominently billed as a gateway to creating one's own "Doom-like" games.
In addition to digitized photographs of textures from Trinity College, this map has some impressive tricks for being from 1994. During a quick play through I observed (1) recessed switches, (2) "deep" water, (3) an animated "cinema" texture with level credits, and (4) creative integration of Doom assets with real world settings.
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