Alcoves and fountains at the edges

[Bit]

I think I met a fountain somewhere in CSB that's at the eastern border and I think I missed it in CSBuild, because such special things used to be shown in the next (not existing) square. Is that correct?
How to create such a fountain or alcove? Must CSBuild be enlarged by one on each side?

[Paul Stevens]

Is it possible that it was a random
wall decoration? Otherwise, there
is no way to place anything on
a border wall. If the level is 32x32
then you cannot enlarge it. On level
5, a fountain is a possible random
decoration.

But I don't think a random decoration
can go on the border because, for example,
if an alcove went there then an item
placed in the alcove would have nowhere
to go

[Gambit37]

Each level has a set of "random" wall decorations that are placed by the engine on the outermost wall, even though you can't edit them with the editor. I have no idea how this works (why aren't the wall items in different places each time you play, for example?) but I'm sure Paul can shed some light on it.

[Paul Stevens]

OK......the randomness is not random at
all. It is the result of a hash function of
the location. So it is always the same for
a particular wall.

The border can receive random decorations.
BUT---alcoves are removed. Probably for the
reason I stated two messages above this one.

[Paul Stevens]

There was a note here from Gambit37 but it seems to have disappeared!

[Gambit37]

We posted at the same time again, but your reply made mine redundant so I removed it.

[Bit]

That's a 'dry' fountain then? Didn't know that this is possible - still full of surprises.
I just was wondering because the situation seemed to be weird.