Gamedev in Lisp. Part 2: Dungeons and Interfaces

https://gitlab.com/lockie/cl-fast-ecs/-/wikis/tutorial-2

by awkravchuk • 2 years ago

333 64 2 years ago

gitlab.com

sourcepluck• 2 years ago

I was only looking back over Part 1 yesterday! What timing!

dunefox• 2 years ago

Nice, just this week I started developing a roguelike in Python, but Lisp might be cool as well.

awkravchuk8• 2 years ago

There's also this full-fledged Lisp-based roguelike tutorial: https://nwforrer.github.io/posts/roguelike-tutorial-part1

varjag2• 2 years ago

There's also Langband: a fairly complete Angband clone written in CL by my late friend. Including SDL/tiled version; however the code is pre-Quicklisp and it'd probably would be some work to get it to run again.

https://github.com/fufie/lambdarock

fredrikholm• 2 years ago

Few (tech) things pull at the heart string more than great projects/articles about Common Lisp. Man what a treat!

Read the first part when it came back, really excited to read this one. Kudos to the author!

awkravchuk8• 2 years ago

Thanks mate, I appreciate it :)

Guthur• 2 years ago

The event loop is brilliant example for how much `loop` is a full blown iteration DSL... love it or hate it ;)

awkravchuk8• 2 years ago

I used to scoff at it at first, but after a few years of CL programming loop is one of my favourite CL constructs :)

taeric2• 2 years ago

I'm with you there. Is a bit of a mind bend, as I really disliked it the first few times I saw it.

For an even sillier mind bend, I'm using tagbody to be able to directly transcribe some of Knuth's algorithms as I am learning them.

BoingBoomTschak5• 2 years ago

Why loop when you can https://iterate.common-lisp.dev/ instead? No s-expr-less alien syntax, no need for `do` to switch to back to Lisp syntax, normal `if`/`when` without the ugly `else`/`end` and generally useful features added.

Jtsummers• 2 years ago

Have they fixed the problem in Iterate yet where it breaks any uses of the built-in count function?

shawn_w7• 2 years ago

If I used Common Lisp more I'd probably have a go at copying Racket's `for` forms[1]; they're really nice because you can usally tell at a glance what they're going to return - `for/list` returns a list for example. No having to scan the body for a `collect`.

But in the meantime since discovering iterate I've barely used `loop`. It just feels so much more lispy and I find myself running to the documentation less often.

[1] https://docs.racket-lang.org/reference/for.html

zelphirkalt2• 2 years ago

I like the SICP references.

davexunit• 2 years ago

I didn't know that bit of history about A* and Lisp! All roads lead to Lisp, it seems.

As mentioned at the end of the article, the next Lisp Game Jam starts next week on the 25th. Join in here: https://itch.io/jam/autumn-lisp-game-jam-2024

awkravchuk8• 2 years ago

I also learned it by chance while preparing the article :)

mark_l_watson• 2 years ago

Wow! Your package.sh and in general managing builds for three operating systems is a master class in itself - reading through the GitHub repo was a good learning experience.

I usually build command line Common Lisp apps in SBCL or LispWorks, but I might do the next one in ECL because having builds for both macOS and Linux would be cool, and it would be fun to try something new.

awkravchuk8• 2 years ago

Oh thanks! I've been building that CI stuff on top of CL infrastructure for a few years now, and it constantly breaks :D

0xEF• 2 years ago

I feel tricked. I came to learn to make a simple game, ended up learning tons about computing.

Love it!

awkravchuk8• 2 years ago

Thank you!

ertucetin• 2 years ago

This is a very good read. I’m developing a multiplayer, third-person, spell-based shooter game using Lisp (ClojureScript). It’s a 3D web-based game. I’ll also be writing a blog post about my journey, including the tools and abstractions I created for the project. If you’re interested, here’s a demo link: https://wizardmasters.io

fire_lake• 2 years ago

Jon Blow tried to make a game like this way back. It might be worth learning how/why it failed.

tines• 2 years ago

Link to any video or anything on the subject?

maxwelljoslyn• 2 years ago

This is what all technical tutorials should look like. Well-composed and generally free of grammatical errors, spends just the right amount of time explaining each new topic as it is introduced, comes with full code samples, and includes visual samples of what the code does. Also, lengthy enough to treat the material in depth, while still being sufficiently self-contained that I can follow along -- without having read part 1 and without more than a few months of Common Lisp under my belt from a couple years back (tho I've done a decent amount of Clojure and Emacs Lisp.)

Bravo, awkravchuk/Andrew :^)

(Crossposted from https://mxjn.me/2024/10/17/1)

varjag2• 2 years ago

Seconded! Top notch longform programming material.

awkravchuk8• 2 years ago

Thanks so much guys :)

dfxm12• 2 years ago

Importantly, it's written, as opposed to a video. That's a huge plus already. You can copy and paste things, read things legibly, follow along at your own pace, consume it in silence, easily save a copy for offline use/archival (where you can also annotate it), easily search for things, etc.

edem• 2 years ago

This reminds me of "Caves of Clojure": https://stevelosh.com/blog/2012/07/caves-of-clojure-01/

xixixao• 2 years ago

This is super solid, but the setup in Part 1 (CL itself, Python, C, lots of steps) I think is indicative of why CL is not super popular, especially with young programmers. Which is a shame. Would be awesome if someone felt like putting in the work to make the language more approachable (installation wise).

wwfn• 2 years ago

This doesn't exactly get at it, but https://ciel-lang.org/ is at least attacking part of too-many-steps problem while focusing more on the too-many-choices and long in the tooth defaults (as I understand it).

rtpg• 2 years ago

Tiled is great. I really wish there was an SVG equivalent though. Inkscape is alright but custom data parameters are really annoying to deal with, and ultimately the tool is built around drawing things to paper.

resatori• 2 years ago

Hey, you should checkout https://github.com/rednblackgames/HyperLap2D then.

Gamedev in Lisp. Part 2: Dungeons and Interfaces

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