I think I've normally avoided barriers in the past. Now I remember why. I've got one location where you can either GO NORTH or ENTER BUILDING, but only if the guard has been disabled. (This is a fictitious example, by the way.)
Is there any way to use block_path to block N, as well as ENTER BUILDING, or should I just do my own thing?
Yes, it's possible in the normal way ...
I tested this and it blocks entry from N or ENTER (assuming both at between inside and outside in the connection table):
block_building : block_path {
block_when_not = is_has_given_oracle_something
from = outside_building
to = inside_building
message = Oracle Prevents
}
That was quick. I was going to say don't bother, as I've reverted to the DIY way. I'm sure your code is what I had and it didn't work. Maybe I still had the manual way for the barrier with ENTER and it was taking precedence. If so, it probably didn't have the condition check, as I'd only just added the boolean to use for the test. Anyway, works now.