<Someone> reported that he applied an unID'd bag and it became
discovered as a bag of tricks even though a spellbook appeared on the floor
next to him rather than having a monster show up (the monster was a mimic).
Suppress the bag discovery unless you can see or sense a monster appear.
(This doesn't really achieve much for most players, who'll recognize the
bag because they know that only one type of container doesn't prompt to
take things out and/or put things in, but I think it does make sense.)
While mucking with bag of tricks I decided that to be consistent with
the behavior of other containers, the #tip command should release all the
monsters in the bag instead of just one.
And after doing that, I realized that horn of plenty ought to behave
much the same, so #tip will operate on it now. However, it won't be listed
as a likely candidate in the "which item?" prompt unless/until it has been
discovered. (Attempting to empty any other type of horn yields "nothing
happens", same as for a horn of plenty with no charges left.) Emptying a
horn of plenty in a shop can be extremely verbose, but I don't think that
qualifies as a bug and don't currently have any plans to alter it.
projects / nethack / commit