sol2
Wren
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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
Wren
- Tinyssh
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Show HN: Wren – simple yet super extensible task management system
For a moment I thought it was about wren programming language... [1]
[1] https://wren.io/
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Attempting each AOC in a language starting with each letter of the alphabet
For "W" you could use Wren.
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loxcraft: a compiler, language server, and online playground for the Lox programming language
Bob Nystrom also has a blog, and his articles are really well written (see his post on Pratt parsers / garbage collectors). I'd also recommend going through the source code for Wren, it shares a lot of code with Lox. Despite the deceptive simplicity of the implementation, it (like Lox) is incredibly fast - it's a great way to learn how to build production grade compilers in general.
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Bevy 0.10: data oriented game engine built in Rust
Only kind of unrelated ... Every time I see the Bevy logo I'm reminded of Wren language https://wren.io/
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Are they all like this?
If you want a pure C99 (sadly not C89 like Lua) immensely fast embeddable language pure interpreter, wren is a great language with excellent features like overload by arity. There is a huge maturity gap between the languages tho.
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Most important language features not touched in the book "Crafting Interpreters"?
Check out the source to Wren: https://wren.io. It’s from the author of Crafting Interpreters and builds directly on what’s discussed in the book (essentially a more complete Lox) and adds several additional types, including an array.
- Why does Rust have parameters on impl?
- Liberating the Smalltalk lurking in C and Unix
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What are some good C programs I can read through?
The best C code I have ever read is that of wren.
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.
pybind11 - Seamless operability between C++11 and Python
LuaJIT - Mirror of the LuaJIT git repository
ChaiScript - Embedded Scripting Language Designed for C++
SWIG - SWIG is a software development tool that connects programs written in C and C++ with a variety of high-level programming languages.
V8 - The official mirror of the V8 Git repository
Duktape - Duktape - embeddable Javascript engine with a focus on portability and compact footprint
nbind - :sparkles: Magical headers that make your C++ library accessible from JavaScript :rocket:
ChakraCore - ChakraCore is an open source Javascript engine with a C API. [Moved to: https://github.com/chakra-core/ChakraCore]