...scanning memory... hmmm, I believe that you can make whatever type connections you wish. In the XXX_tiles.txt file there are lines that look like this..
Connection Type N :1
Connection Type S :0
Connection Type E :0
Connection Type W :0
As the person building the tiles you get to decide what is what. type '1' could be a single width corridor exit to the N-S-E-W, type '2' could be a wider 2-3 tile corridor N-S-E-W, type '3' two single width corridors N-S-E-W etc.
Basically when you create the tiles 'you' decide what your 'edge' connections look like and then assign a number to it.(yes, you have to manually insert the tile into a XXX_tiles.txt file and then edit the 'Connection type' lines!) Just remember that a type '#' North must match the same type '#' South. When the game generates the map, it will randomly place the tiles and use the 'Connection type' to ensure a proper 'seemless' transition from one tile to another.
P.S. I'm sure that this is all mentionned in the doc files, and perhaps in better form.
Aaron correct me if I'm wrong!
