Add C# version for examples of custom BBCode tags and text effects

[mateuseap]

What I did

• Added C# version of the examples for creating custom BBCode tags and text effects.

Closes: #9334

[raulsntos]

We should make this a constant, and it probably doesn't need to be public. Although I don't see this being used at all.

Suggested change

	public string bbcode = "ghost";
	private const string Bbcode = "ghost";

[RedMser]

It seems to be magic - not sure how it exactly needs to be defined to be read in C# but in GDScript it just is a variable named bbcode:

https://docs.godotengine.org/en/stable/classes/class_richtexteffect.html

This has to be tested / check RichTextEffect source code in godot.

[raulsntos]

Ah, I see. It looks like this only works with scripts that have a property named exactly bbcode:

https://github.com/godotengine/godot/blob/be56cab58c056c074d1e02cd0b38641204e39f41/scene/gui/rich_text_effect.cpp#L49

That's a weird pattern, I don't think we usually do that. For example, in editor plugins there are virtual methods for doing this kind of thing (e.g.: EditorPlugin::_get_plugin_name).

So to make this work the member would have to be named bbcode even though that goes against our C# naming conventions. And it can't be a constant.

[mateuseap]

Thank you, @raulsntos, for the code corrections you've provided! I've applied all of them to the examples.

[mateuseap]

Thanks once again for the providing all these adjustments, @raulsntos! I've applied them all.

[RedMser]

You should probably try following the tutorial here and see if the effect actually works as expected, especially for things like the bbcode string since it seems to be a very weirdly handled thing.

[mateuseap]

I've created a C# script to test out the matrix effect code provided in this PR, but I wasn't able to load this custom effect — it didn't show up in the inspector. On the other hand, I created a script called RichTextGhost.gd using the GDScript code provided in the tutorial, and it worked properly. I was able to load and use it.

The effect in action:

Do you guys have any idea of what could be the problem?

[raulsntos]

You have to use the [GlobalClass] attribute to get C# classes to show up in the inspector, it's somewhat equivalent to GDScript's class_name.

[mateuseap]

I've added [GlobalClass], but it still didn't show up as expected:

I've tested many things but still haven't figured out the problem.

[paulloz]

After a very quick test, I don't seem to have an issue seeing the effect in editor once it is marked with [GlobalClass].

[mateuseap]

Then it's probably a misconfiguration with my Godot. I've tried it on two different devices (both with the .NET 6.0 SDK (v6.0.423) - Windows x64 installed) but still I wasn't able to use the C# version of these custom effects, not even was able to load them in the inspector using the [GlobalClass].

I've used v4.3.dev5.mono.official [89f70e98d] and v4.2.2.stable.mono.official [15073afe3].

[paulloz]

Did you compile the C# solution?

[AThousandShips]

Suggested change

No space, rather than deleting the line, GitHub doesn't allow that clearly

[mateuseap]

I don't get it, you suggested to delete the line between the code-tab and the code itself?

[AThousandShips]

Suggested change

Same here