onPreUpdate and onPostUpdate usages

I’m curious as to how exactly these could and should be used. Wouldn’t any code I put in there basically be like putting it in the main event loop anyway?

Yes, but the logic that happens in update() did not yet or did already happen and you can be sure its not changed or has been changed.

Take physics for example, before syncing the data with the physics space all changes have to be applied, so it should be in postUpdate() If you put code into the pre or post that is expected to be in update() you will break code logic.

Where do you see those methods? They are not in SVN anymore.

They were left blank in most of the files I saw them in, I believe they were in in the October 12th build Cubefield was one of them. I was just curious.