sol2
CppSharp
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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
CppSharp
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Recommendation for software to aid with creating a C# wrapper around a c++ library
Or take a look at the tools CppSharp or SWIG, s.a. Example for SWIG to wrap C++ library in .Net 6.
- Tools and libraries to glue C/C++ APIs to high-level languages
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COM or C++/CLI layer for long-term maintenance?
I would give CppSharp a crack first. It generates a .net wrapper using pinvoke.
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.
SWIG - SWIG is a software development tool that connects programs written in C and C++ with a variety of high-level programming languages.
pybind11 - Seamless operability between C++11 and Python
CefSharp - .NET (WPF and Windows Forms) bindings for the Chromium Embedded Framework
ChaiScript - Embedded Scripting Language Designed for C++
pinvoke - A library containing all P/Invoke code so you don't have to import it every time. Maintained and updated to support the latest Windows OS.
PythonNet - Python for .NET is a package that gives Python programmers nearly seamless integration with the .NET Common Language Runtime (CLR) and provides a powerful application scripting tool for .NET developers.
Wren - The Wren Programming Language. Wren is a small, fast, class-based concurrent scripting language.
Sharpen - Sharpen is an Eclipse plugin created by db4o that allows you to convert your Java project into c#
V8 - The official mirror of the V8 Git repository
CXXI - C++ interop framework