Jumping Flash (ps1) was my first ever game. https://en.m.wikipedia.org/wiki/Jumping_Flash!

It was pretty hard as a 5 year old.

Maybe you’re looking for lerp()?

Given two vectors and a value between 1.0 and 0, it’ll produce a vector at a point between the inputs.

https://docs.godotengine.org/en/stable/classes/class_vector2.html#class-vector2-method-lerp

This is a game changer.

I think you might be talking about Flash games. Here’s an article that summarizes Flash and what happened to it:

https://www.techspot.com/article/2413-adobe-flash/