Where can I find tutorials on embedding Lua scripting into applications

adamnejm, 7 months 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

Swim, 7 months ago

let me take a guess, gta online modder ?

ZILtoid1991, 7 months ago

No, I'm developing my own engine.

DmMacniel, 7 months ago

Whats the host language you try to embed lua into?

ZILtoid1991, 7 months ago

D.

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

aluminium, 7 months ago

Upvote for D, underrated lang.

bizdelnick, 7 months 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.

tdawg, 7 months 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?

Limeey, 7 months ago

What do you mean “embedding lua into applications”?

I assume you mean you want an application extensible by user lua script?

You build an API that calls the lua interpreter and passes the script, and reads the output; same as you would for any other scripting language. You define what the inputs should be, create the interface for executing the user defined script through shell commands, and then retrieve the output.

For python you’re going to probably use this:

docs.python.org/3/library/subprocess.html#subproc…

For C# you’re going to use Process

stackoverflow.com/…/process-start-how-to-get-the-…

The complexities arise in your implementation and there’s no single guide.

samus7070, 7 months ago

While lua ships a standalone interpreter, it is very much designed to be embedded directly into an application. This is done by invoking some C apis to load the interpreter into the application’s memory space. OP wants to do that rather than invoking another process and reading the output. When embedding into a host, the host can provide its own objects to be manipulated by the user script allowing for a much better extensibility experience.

ZILtoid1991, 7 months ago

That solution is janky and slow as hell. I'd rather just embed it into my own software, which is mostly done, except it doesn't find functions as functions, but as nil value.