SMsmcl·Feb 6, 2023
Don't sell yourself short, I imagine you could achieve a lot more than you think! It's just a case of breaking the problem down, simplifying accordingly and (probably the most difficult bit) finding the time to sit down and work on it. There are some DIY courses that could even be followed and mashed up to approximate a scriptable "3D" engine with a bit of creativity. You could familiarise yourself with building a simple compiler + VM for a little language by following "Crafting Interpreters" (https://craftinginterpreters.com). For the engine side of things someone recently posted this "DIY Doom" over @ https://github.com/amroibrahim/DIYDoom which looks like a bit of fun.
I mean it's a bit tougher to do it all completely from scratch, but remember John Carmack didn’t just sit down one day, open a blank text editor and say “I’m going to ma
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ke Quake” - he started with game dev years before, built 2D platformers, built Wolf 3D, then Doom. With the tools and docs we have at our disposal nowadays, I reckon most HNers could get quite a lot of the way towards Quake if they could dedicate the time to the task :)