Would it be possible to add support for diagonal or custom wall shapes? Diagonal walls are used extensively by some of my friends, so I'd be most interested in seeing that.
Custom walls could be defined in a similar fashion to the currently custom wall UI. Instead of a line, you could use a grid.
I should be able to support a diagonal wall, since that would just be a straight wall with orientations NE, NW, SE, SW, but the custom shape would require quite some rework of the current mod... I might look at it, but I'm quite unsure at this point.
