Passages

The slowness of cavern creation was actually a bug in passage routine (a simple corridor). Also fixed small room bug that gave wrong locations for rooms, now they are created again. There is just one problem with passages:

A rogue passage not connected to main dungeon. You would think this kind of routine is easy to do, but it looks like you can fail in that. I mean how hard it is to draw corridors between caverns?

Then there is that issue with round rooms and corridors that can't find a proper wall. Guess I need that pathfinding for corridors after all.