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From: sdo@ursa.UUCP (Scott)
Newsgroups: comp.sources.bugs
Subject: nethack bug (makemon panic)
Message-ID: <300@teddy.ursa.UUCP>
Date: Tue, 15-Sep-87 16:55:12 EDT
Article-I.D.: teddy.300
Posted: Tue Sep 15 16:55:12 1987
Date-Received: Sun, 20-Sep-87 15:40:41 EDT
Reply-To: sdo@ursa.UUCP (Scott Oaks)
Organization: Bear Stearns, New York
Lines: 23

I have seen a few complaints about the "Suddenly the dungeon collapses"
with the resulting "died due to a panic" in the record file but I have
not seen a fix yet, so here is one.

I don't want to provide diffs, becuase my line number are off from some
changes made elsewhere (like removing three consecutive assignments to
tmp).  But around line 55 is the following code:
#ifdef KOPS
	ct++;
#endif

If you play with KOPS defined, this has two effects:  1) it means that you
will never get a bat as a monster and 2) it means that if you genocide enough
monsters and go deep enough, eventually you will get an off-by-one error
in makemon() which will cause it to call panic.  All you have to do is
remove these three lines (or not define KOPS, or rewrite makemon into a
reasonable function, or . . .) and the off-by-one error
disappears (and you get bats).
-- 
Scott Oaks
Bear Stearns
(212) 952-3164
{sun!sunrise, convex, cuctr}!ursa!sdo