I quickly created this tile set:
With the above tileset, we can reduce the # of tiles down to eight. I know they are ugly, but it is extremely simple to implement... Basically the yellow background tiles are passageways and the grey background tiles are caves... I don't have time to post much more information but I think it speaks for itself... Any comments?
-Darke
I did overlook the corner tiles, one for passages and caves would be nice. I agree the dead end tile for the caves isn't exactly necessary.
As for the first passageway tile, it is a intersection tile. I.E. you can build add tiles to each of it's edges, whether they be caves or another passageway. To prevent 'wide' passageways, we could just have a rule that states that you can not place an passage intersection tile next to another passage intersection tile.
Hpox:
As for walls touching open spaces I would have to initially say no. Later on we might change our minds.
As for Doho's and FL's previous tile sets, I am not saying there is anything wrong with either. They were both great. My only concern, especially with doho's was that there might be a lot of occasions where you were forced to play one tile over another simply because it was your only legal play. The tiles I created are just simpler; they are either cave or passageway, and they have one to four possible exits. I'm not saying I even prefer my tiles, again I am just offering a simpler alternative.
-Darke