Diagonal foundations

[m3henry]

ok, i've wanted to finish this loop (see attachment)
but i can't becvause of the foundations are in the way.
if a few graphics were made and patch support this could be possible, or am i wrong?

[Patchman]

It would be really quite complicated to support this, because then the tile would have to have two different height levels. That's only supported for bridges, but would now have to be added to lots of other places as well.