C# wrappers of Existing c++ GDExtension - 2024 Update

[GeorgeS2019]

12th April 2024 (FINALLY)

@Delsin-Yu

https://github.com/Delsin-Yu/CSharp-Wrapper-Generator-for-GDExtension

        // This construct an instance of the underlying 
        // GDExtension Node, we are using a static method
        // here is we need to do manual black magic for
        // setting up the wrapper script and the underlying 
        // GDExtension node instance.
        var joltGeneric6DofJoint3D = JoltGeneric6DOFJoint3D.Construct();
        AddChild(joltGeneric6DofJoint3D);
        GD.Print(joltGeneric6DofJoint3D.AngularLimitYEnabled);
        joltGeneric6DofJoint3D.AngularLimitYEnabled = false;
        GD.Print(joltGeneric6DofJoint3D.AngularLimitYEnabled);
        joltGeneric6DofJoint3D.AngularLimitYEnabled = true;
        GD.Print(joltGeneric6DofJoint3D.AngularLimitYEnabled);

5th April 2024 with Official discussion from the Godot Team

Official discussion from the Godot Team

Godot C# GDExtension Roadmap Discussion

5th April 2024

The Official Godot4 GDExtension for .NET is Here

godotengine/godot#72883 (comment)

Main proposal: #7895

Community discussion: https://chat.godotengine.org/channel/dotnet?msg=Kyvjpbutadr2bnzvG

25th Jan 2024 Update

Proposed and prototyped by @DmitriySalnikov

28th Nov 2023 Update

28th Nov 2023 status

Auto generate C# bindings for gdextensions

13th Sept 2023 Update

# 18th Oct 2023 Update (After Godot 4.2 Beta 1) https://github.com/godotengine/godot/pull/82331#issuecomment-1767267091

13th Sept 2023 Update

A menu item of Generate C# Bindings has been added
https://github.com/DmitriySalnikov/godot_debug_draw_3d

Older discussions

I am looking for a way to create c# bindings for GDExtension as stated in in the What's new in C# for Godot 4.0 article. [25 February 2023]

Given an Addon: Addon1 with Addon1.gdextension with windows binary: addons/Addon1/libs/x86_64/Addon1.dll

Here are the possible steps => WIP

BindingGenerator

Convert Addon1.GDExtension_api.json to C#

FYI

• July2023:GDExtension C# with respect to Jolt Physics

• June2023: Expose PropertyUsageFlags in GDExtension dump

• core/extension/[extension_api_dump.cpp]

• June2023: godot-gdextension-info-dumper

• [Idea from LibGodot] LibGodot with GDExtension godot#72883 (comment)

[AThousandShips]

Excuse me but what are these "discussions" for? Are you just using this as a blackboard for some discussion going on elsewhere? This is a forum for discussion

Ask in the community channels, or open a proposal for this then? Also how would this be different from just using mono?

[JoNax97]

Also how would this be different from just using mono?

I understand that GDExtension allows for deeper access into the engine internals than what is exposed to scripting languages, specially for extending/modifying the editor itself. Is this the case?

open a proposal for this then?

Does this imply that C# bindings for GDExtension are not currently planned or in development?
That would contradict this bit of the aforementioned blog post. Could you please clarify this?

Thanks a lot

[AThousandShips]

Clarify what? These were comments a long time ago, responding to content that is no longer here, this post is used as some kind of scratch pad for some discussions elsewhere rather than a genuine discussion

[JoNax97]

@AThousandShips I understand that you are part of the core team on Godot and as such I expected you could provide more up-to-date information about the ongoing effort or plan (if any) to enable the usage of C# as a GDExtension language.

Thanks and sorry for any confusion caused.

[AThousandShips]

I'm not part of said team, but I understand

Thank you and no worries!

[GeorgeS2019]

@398utubzyt
@adamscott
@timshannon

NativeStructs and Pointers in C#

I need your feedback on how best to get C# access exposed properties/methods from GDExtension written in c++

[GeorgeS2019]

@JoNax97

DmitriySalnikov/godot_debug_draw_3d#10 (comment)

[GeorgeS2019]

Update 13th Sept 2023

Using c++

@398utubzyt
@adamscott
@timshannon
@JoNax97

cc @DmitriySalnikov
A menu item of Generate C# Bindings has been added
https://github.com/DmitriySalnikov/godot_debug_draw_3d

[DmitriySalnikov]

Actually, this has always been possible. These are the usual bindings via ClassDB. In the Debug Draw version for Godot 3, it worked the same as now, but the generator was written in GDScript, not in C++.
At the moment, official bindings (not mine!) work through native pointers, which allows you to access methods much faster.

[GeorgeS2019]

@DmitriySalnikov
If u like, create a Godot Proposal so others could improve on what you have developed, including adding the higher performance native pointers, while improving the Usability. e.g. perhaps the menu is added under c#: Generate Bindings: projectNameOfGDExtension

So the proposal will become the official version

[DmitriySalnikov]

I already wrote that everything is already in the engine, except that GDExtension bindings need to be moved to a separate library, somehow. But most likely I'm wrong and it will take more effort.

[398utubzyt]

I'm not sure why I keep getting mentioned here, I'm not a part of the .NET/GDExtension teams nor am I interested in GDExtension. Also, I'm not sure what your point here is exactly, but the project you linked does not generate GDExtension bindings, but instead makes C# bindings of its own classes.

[GeorgeS2019]

@398utubzyt Good Point. According to this version 1, The GDExtension c++ developer need to include the methods to generate the C# Bindings. This is not an universal or generic C# Bindings Generator e.g. GDExtension <== which is future version from the community.

The main point, there is NOW a tentative way to get to C# binding FOR THE FIRST TIME