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Where can I find tutorials on embedding Lua scripting into applications (kbin.social)

submitted 1 year ago* (last edited 11 months ago) by ZILtoid1991@kbin.social to c/programming@programming.dev

8 comments fedilink hide all child comments

The official documentation isn't 100% clear on things (why am I getting LUA_TNIL for functions?), and the best I can find with some simple web search is kinda relevant stackoverflow (🤮) posts, except they're mostly about calling host functions from Lua side, the rest are things that seem I've nailed so far.

EDIT: Solution was that everyone was using luaL_dofile, while I was forward thinking and used lua_load instead, which isn't a macro, and as such doesn't do an initial lua_pcall. Now I do it manually, and now I get different, but less cryptic and actually documented errors. Now I just have to wrestle with D metaprogramming features (very strong and capable, but is a rabbit hole itself).

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[–] tdawg@lemmy.world 7 points 1 year ago

Not really sure what you're trying to achieve here. Do you have an application that lets you use Lua extensions? Or do you want to build an application that lets you use Lua extensions?

[–] DmMacniel@feddit.de 5 points 1 year ago (1 children)

Whats the host language you try to embed lua into?

[–] ZILtoid1991@kbin.social 3 points 1 year ago (1 children)

It has C ABI compatibility, so it should work. But as others wrote, I might have messed up my Lua script.

[–] aluminium@lemmy.world 2 points 1 year ago

Upvote for D, underrated lang.

[–] Swim@lemmy.ca 4 points 1 year ago (1 children)

let me take a guess, gta online modder ?

[–] ZILtoid1991@kbin.social 1 points 1 year ago

No, I'm developing my own engine.

[–] adamnejm@programming.dev 2 points 1 year ago

One Lone Coder has made few videos about adding Lua scripting to a C++ program, maybe it has what you're looking for: Embedding Lua in C++ #1

[–] bizdelnick@lemmy.ml -3 points 1 year ago

Well, reference manual was enough for me. There' nothing difficult. You probably have troubles with your lua code, try executing it in the standalone interpreter.