This is a crate that contains bindings for using the lua c api in garrysmod through bindings using the rust libloading library. Can be used for either binary modules or just manual injections into gmod, like with Autorun-rs
This works by finding a lua_shared.dll file relative to the currently running program, so you need to make sure your file is either in GarrysMod/bin/ or GarrysMod/garrysmod/bin for srcds servers. The library will panic if the file is not found.
More information on binary modules can be found on the garrysmod wiki: Creating Binary Modules and an example can be found at the bottom of this file.
Add this to your Cargo.toml file
```toml
[lib]
crate-type = ["cdylib"] # This tells rust we want to create a .dll file that links to C code.
[dependencies] rglua = "0.5.0" ```
After installing rust, just run cargo build --release.
If you are building to 32 bit for srcds or non x64 garrysmod, first do:
rustup target add i686-pc-windows-msvc in order to make rust download any 32 bit libraries needed to compile this.
And finally run:
cargo build --release --target=i686-pc-windows-msvc
Also do this if you have never compiled to 32 bit, to get rustup to install 32 bit versions of everything you need
rustup target add i686-pc-windows-msvc
I have never tested this outside of Windows and won't. If there are any issues on other platforms, I will gladly accept any PRs you may make but I won't be able to help you myself.
The nature of this crate is super unsafe and sort of defeats the purpose of rust's safety because of the interfacing you require to unsafe C code and the nature of linking to them.
```rust use rglua::prelude::*;
pub extern fn gmod13open(state: LuaState) -> i32 { luagetglobal( state, cstr!("print") ); luapushstring( state, cstr!("Hello from rust!") ); luacall( state, 1, 0 ); 0 }
pub extern fn gmod13close(state: LuaState) -> i32 { 0 } ```
This is heavily based off of garrysmodcommon, in how we export the luashared functions and trying to replicate everything from the Lua C Api.