Fixing Rookie Mistakes in Godot

Just a casual code review in Godot!

Today's code was provided by MonoCode:
https://www.youtube.com/@MonoCodeYT

This was a quick project that he was using to learn the engine and is in no way a criticism of his programming skills!

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00:00 Introduction
00:29 Running the project
01:02 Static types
01:50 Minor refactoring
03:54 Input handling
04:50 Custom types
05:39 Built-in functions
06:15 More input cleanup
07:28 Unique names
08:26 Avoiding `get_parent` (node groups)
09:37 Code comparison (before / after)