Do you need AI to learn how to move characters? Likely no, you don’t.
The way this was done before the AI bubble formed a few years ago was to ask other game creators, programmers, or people who will help read through documentation.
Is disclose of the use of Claude or another LLM in making characters move? Likely, yes, that’s within the current definition of “AI assisted” if you keep any of the code generated by the prompt. (This is assuming there’s not a person on the other side pretending to be a Claude model.)
From itch.io’s guidance on the project edit page:
Please disclose if this project contains content produced by generative AI tools such as LLMs, ChatGPT, Midjourney, Stable Diffusion, etc., even if you hand-edited it