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I'm making a 1st person game that resembles a Wolfenstein like engine, and now I'm at the part where I need to figure out how to get it so the game knows which walls are hidden behind others (thus not displayed), and which ones need to be displayed.
I've been thinking about it and I can come up with a couple of algorithms, none of them that guarantee to work 100% of the time though. Does anyone have an approach that worked for them, or know of one that works best?