Freewheel Mate possible via FS?

I've asked about a means to create a freewheel functionality using the built-in mates earlier. It wasn't thought to be possible. I didn't find any useful workaround either, and I am not a FS wizard. Now I seem to have another project coming that calls for a function where things can rotate, but only one way. What do the FS experts think: Would it be possible to create a mate that is like the rotate mate in everything, but only allows rotation in one direction? That is: The angle of rotation may only count up or may only count down, depending on the configuration chosen?