The Dink Network

I was messing around in the Dink Editor changing the hardness of a tile. I know that Z is the normal hardness (you can't walk over or 'fly' over), A is the hardness you use so that things that can fly may pass over, and X removes the hardness set, but what about S? While your editing the single tile, it shows up orange, but when your in hardness mode, it shows up purple. What is this hardness and what does it do?

Z - Normal hardness (no walk or fly over)
A - Fly hardness (fly over only)
S - ???

Err.. I belive it's the same as the normal hardness. Other than that? Not much really. Well, you could use it as a guideline I suppose...

I think Seth wanted to implement somethink else to dink when he created that kind of hardness, but then he changed his mind.
To quote, the map-format(too lazy to post a link): To answer you question, no one knows what #3 hardness is for, possibly left for other things Seth was planning, but yet, never used.

Hrhm... can't somebody ask him what he intended, and then sombody program that into Dink v1.08, revision 2?

Hmmm... the only kind of hardness I can think of would be a hardness that only allows dink to walk on it. Still, it would be a good ideea to ask him.

Probably something to simulate crawling though a cave.