PD is new to me and I could need some help to get it to do what I want.
My attached patch is a part of a patch where a sphere is transformed in respons to incoming sound. This part currently increases the number of segments in the sphere to a maximum of 20 and then start over again counting from 0.
Instead of just jumping from 20 to 0 segments I want the procedure to go backwards -- to decrease instead of increase the number of segments -- until it hits 0.
I've tried to do this myself, but just ended up being frustrated.
Can anyone help me to sort this basic PD control structures out? How could this be done?

Thanks in advance!

http://www.pdpatchrepo.info/hurleur/rotate_part.pd

thanks! I'll check that up.