I have a scene with code that is meant to affect another scene, so I can't test the first scene "Disc" by itself. I've been reading about "singletons" and "autoload", and heard that you shouldn't use "get_node()" because it's brittle and my code will break, but it's a little confusing.
I just thought I'd see if anyone could help me understand better while I try to read more about it and experiment with it. This is the code for my "Disc" that is supposed to make the "Player" rotate with it, but they are two different scenes, so like I said, if "Player" isn't present in the tree, it will crash.