sol2
Fennel
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sol2
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Any tips for how to make moddable games?
As someone said, make the game data-driven is a good first step but I will say, also have some sort of way to add additional game logic. For C++ games, lua is really easy to embed the interpreter in your C++ binary, read in the files from a directory (like /mods) with the C++ filesystem api new in C++17, and it's very easy to use SoL to write an API for lua specific to your game. Many games use lua in this way and it's probably the most common mod path setup.
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Script Interoperability
I've only ever done this from C++, but it's using the same lua C library, so should be durable from C as well. You can look up how sol2 or any other wrapper libraries do it.
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Need help trying to embed lua in c++
Consider sol2
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CBN Changelog: December 3, 2022. Improved LUA support in progress!
This version relies on a Lua C++ wrapper called sol2 to hide Lua stack management from the developer, so creating new bindings can be done by adding a few lines of human-readable C++. It still has to be done manually, but at least sol2 is able to automatically figure out types of objects being bound, so it's not much different from our de-/serialization code.
- RTS programming game where you write real C++ code to control your player.
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why?
Here's an example: sol2
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Tools for rolling your own engine
Here is link number 2 - Previous text "Sol"
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Storing pointers to C++ data in Lua in a type-safe-ish manner that are comparable on the Lua side.
Have you considered using sol2? https://github.com/ThePhD/sol2 Or if you don't want to switch over, you can at least look at their code and see how they handle this.
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jluna: a new Julia <-> C++ Wrapper
It is half of a pun as I was inspired by [sol3](https://github.com/ThePhD/sol2) which is a lua <-> c++ wrapper. Sol means sun and the julia c-api prefixes all it's functions with jl, luna means moon so it is pronounced "jay luna"
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A new C++ <-> Julia Wrapper: jluna
If you want to be portable I'd recommend C++ and Lua, I used those for years and it runs on everything and there's this most amazing wrapper API which was a huge inspiration
Fennel
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Pluto, a Modern Lua Dialect
Eh it's not just luajit and luajit didn't create that problem either. It's a symptom of lua actually succeeding at its design goal of being easily embedded as an extension language. A significant number of incompatible runtimes are more popular than the most recent puc lua, including I believe the older official lua 5.2 released in 2011.
I've done a fair bit of professional lua development and I don't think I've ever written standalone up-to-date puc lua except maybe for some tooling & scripts. It's such a small language and used in such a way that the runtime, distribution method, and available APIs have much more impact on your use (and compatibility) than the version.
Virtually everyone shipping a lua environment is also shipping changes to it that make it a unique target, if only extensions to the standard library. This is why I think syntax layer-only approach like fennel's is the correct choice for improving on lua. It mirrors lua's runtime semantics exactly, and allows you to access the implementation peculiars on their own terms and so can just be run on time of any lua system.
https://fennel-lang.org
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LÖVE: a framework to make 2D games in Lua
Just learned about https://fennel-lang.org/ , could have probably used that as well to avoid Lua.
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The Bipolar Lisp Programmer
> I’m positive that there is a Lispy language out there (actually in existence, or the aether) that is appropriate for embedded work, but the constraints of the target make it difficult to envision.
Perhaps Fennel* fits the bill?
* https://fennel-lang.org/
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The Future of the Vim Project
I've also seen neovim plugins written in fennel [0], so if you want something lispy, that's possible now.
[0]: a Lisp that compiles to Lua, https://github.com/bakpakin/Fennel
- Qual a linguagem que vocês mais gostam de programar?
- Can I use elixir as the scripting language of my game engine?
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TimL: Clojure-like Lisp dialect that runs on and compiles down to Vimscript
Something similar: Fennel (https://fennel-lang.org/) is a lisp that compiles into Lua, which nvim can use as plugins, so you can write nvim plugins in a lisp. Aniseed (https://github.com/Olical/aniseed) makes this really easy.
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Announcing automation-service: write and schedule home automation scripts in Lua
If you want a more FP language on the Lua runtime, you might be interested in Fennel. I wrote a post about adding Fennel compiler to a hslua interpreter a while back, which might be useful for you.
- 916 Days of Emacs
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What's your opinion on Lua programming language?
There's fennel if you're a fan of LISP syntax. I like embedding lua because it's light and easy and doesn't re-engineer itself every six months like python; but I agree, the lua syntax certainly is fugly.
What are some alternatives?
Lua - Lua is a powerful, efficient, lightweight, embeddable scripting language. It supports procedural programming, object-oriented programming, functional programming, data-driven programming, and data description.
janet - A dynamic language and bytecode vm
ChaiScript - Embedded Scripting Language Designed for C++
urn - Yet another Lisp variant which compiles to Lua
pybind11 - Seamless operability between C++11 and Python
nvim-lspconfig - Quickstart configs for Nvim LSP
SWIG - SWIG is a software development tool that connects programs written in C and C++ with a variety of high-level programming languages.
Lua-RTOS-ESP32 - Lua RTOS for ESP32
Wren - The Wren Programming Language. Wren is a small, fast, class-based concurrent scripting language.
lua-languages - Languages that compile to Lua
V8 - The official mirror of the V8 Git repository
nvim-treesitter - Nvim Treesitter configurations and abstraction layer