General questions about pinning sprites

Hey guys, I have seen that many times people will pin their sprite to an invisible object and have the sprite move with said object. What's the advantage of this as opposed to just putting collisions and such on the sprite itself?

Perhaps you mean the cases when there is a hidden rectangle to which the hero sprite is attached. The hero can have many different animations, run attack jump, etc. And in order not to set up a different collision mask on each frame of each animation, we do this hack.

This makes the work of building levels in the game more predictable, but this is one of the methods, you don't have to repeat it.

I would point out that hierarchies are better than pinning - the Pin behavior is mostly there just for backwards compatibility. See superseded features.