OK, #godot question.

[craigp@mastodon.social]

OK, #godot question. I think this was a recent change, I remember it working before.

Since all Godot scripts are layered on top of a node type, it's quite possible to assign a script that descends from "Node3D" to a more specific node - say, "RigidBody3D".

I want to say "if self is RigidBody3D:" and have logic.

However, Godot IMMEDIATELY red-flags it. As a parse error. A PARSE ERROR?! It parses fine, what a whiner.

Anyway, how do I do it?

[craigp@mastodon.social]

This wouldn't be an issue if Godot had interfaces and I could have Array[ControlInterfaces].

[craigp@mastodon.social]

It is unimaginably stupid, but the only workaround I could find was to have an "export var body:RigidBody3D" and then assign it ITSELF in the inspector.

Can't even assign it in code, not using the techniques I know.

This is sad.

[stylus@social.afront.org]

@Craigp Not a gdscript user but I went looking on their issue tracker. This doesn't quite sound like your problem https://github.com/godotengine/godot/issues/73722 but maybe trying is_instance_of() could be a resolution.

more recent PR https://github.com/godotengine/godot/pull/113228 seems to have extended the kind of type checks that can be verified statically to be impossible. Are you sure that an object of type ControlsSubmarine can also be a RigidBody3D, or is it telling you that the body of the if-statement really could never be used?

I think your current workaround is preventing the static check, which if I understand is_instance_of() will also do.

[craigp@mastodon.social]

@stylus Ahah, you are 100% right, that works fine.

Maybe that should be part of the "fatal parser error because it will return null and that apparently is a fatal parser error" message.