Is there any way to change the size of the player in a single player mod? I'm trying to make the size of the player slimmer so it's able to pass through some custom doorways easier. I'd like to do this without altering the size of the doorway, if possible.
You'll have to program these changes with the released source code. There is no way to do this from the editor/tools. If you're actually interested in programming these changes, I can have this thread moved to Programming Discussions for you.