Another 6.5 year old report. This one from Steven Melenchuk told
how to reproduce C343-23 which is still open on our 'known bugs'
page. (I've no idea whether the original bug report came through
the contact page, and if so, what its assigned number was.)
I didn't try to solve this one, I just confirmed that it could be
reproduced and took the fix from grunthack at github. He didn't
menion a fix at the time but implemented one before abandoing his
variant. (Others kept it going afterwards; fix was during his time.)
The overflow occurred when the guard couldn't figure out where to
move to next and just repeatedly 'moved' to his current location
until the maximum number of fake corridor spots was used up. The
fix detects not knowing where to go next and explicitly choosing a
new destination.
Original problem could be reproduced by teleporting into the vault,
digging out a wall and two spaces of stone in a straight line, then
going back into the vault to wait for a guard. When he shows up:
answer, drop gold, follow. If the guard's path walks through both
dug spaces, he will stop waiting for the hero. But hero is in
between the guard and the gap in the vault wall and can't advance;
guard has reached a persistent corridor so doesn't know where to go
next. Have hero wait for 125-ish more turns and then game panicks.
The code was 3.4.3 vintage so needed thorough reformatting, but not
any actual changes (unless I've overlooked something).
Fix a few typos, reword a couple of entries describing the bug rather
than its fix to use past tense, move a couple of entries to be adjacent
to closely related entries (there's a lot of scope for more of that...)
and remove a bunch of trailing spaces.
[fixes36.2 starts with a header line but the tags on it aren't being
substituted.]
Another bug from seven years ago, sent directly to devteam so no #H
number. Report stated that throwing recoil could move a levitating
hero diagonally through a shop's doorway to exit it. If the thrown
item was unpaid, it remained unpaid after landing on shop's floor
and was an unlisted item on shop's bill. Moving diagonally out the
door seems to have been fixed, but the same effect still occurred
if you were far enough from the door to have the shopkeeper vacate
his door-blocking spot and throwing recoil took hero to that spot.
The thrown unpaid item remained unpaid, and walking out the door was
treated as shop robbery.
This one is only seven years old. Dropping an unpaid item inside an
engulfer leaves it unpaid and still on bill. If engulfer is killed,
it ends up unpaid when back on the shop's floor.
Treat dropping an unpaid item into engulfer's inventory as stealing
that item. You have to pay for it to leave the shop, and like any
other dying monster's inventory, the shopkeeper will take ownership
if it lands on the shop floor when the engulfer is killed.
The 'theft' doesn't anger the shopkeeper and the cost shows up on 'Ix'
as part of "usage fees/other charges" rather than as an itemized used
up item.
That #H number isn't a typo. This finally fixes--at least improves--
something reported eight years ago. The monster types chosen by
mkclass() could be way off in some circumstances. Cited example was
repeated same-race sacrifice by chaotic hero on dungeon level 20; it
produced about twice as many incubi as succubi even though they're
the same as far as difficulty goes. (No changes in the intervening
years had any discernable effect; that was still reproducible.)
The report also mentioned that ndemon() threw away the result from
mkclass() and retried quite often and suggested that mkclass() be
taught to filter by alignment when caller cared about that.
This seems to even things out, although it also made harder monsters
chosen more often. A test program generated these numbers when
picking a chaotic demon 10000 times (level 1 hero on dungeon level 20,
so not realistic; actually probably level 0 hero since the program
didn't initialize struct u.) Third column is the number of times the
monster type was chosen with the old mkclass(), fourth is same for
the new one.
mkclass() calls 27315 10000
286 succubus 2800 3309
288 incubus 5552 3262
291 marilith 973 780
292 vrock 477 1617
293 hezrou 150 626
294 bone devil 46 247
295 ice devil 2 107
296 nalfeshnee 0 23
297 pit fiend 0 15
298 sandestin 0 4
299 balrog 0 10
Note that vrock has generation frequency 2 and marilith only 1, so
getting twice as many vrocks as mariliths should be expected.
I temporarily changed ndemon() to ask for lawful demons instead of
chaotic ones and got this.
mkclass() calls 15762 10000
287 horned devil 3197 3375
289 erinys 4991 3339
290 barbed devil 1812 3286
I also ran it for dragons with any alignment (so the outcome was
never thrown away; 10000 calls were needed for 10000 picks) instead
of demons of specific alignment and am suspicious of the outcome.
mkclass() calls 10000 10000
140 baby yellow dragon 1124 0
141 gray dragon 1096 1096
142 silver dragon 1073 1099
143 red dragon 1061 1126
144 white dragon 1077 1128
145 orange dragon 1141 1118
146 black dragon 1154 1049
147 blue dragon 1137 1123
148 green dragon 1137 1154
149 yellow dragon 0 1107
There may be a flaw in the test program. Or else old mkclass() was
not very good at picking dragons.
We still don't know whether this will be of any help against
disconnected processes that hog the CPU instead of exiting, but I
don't think it imposes significant overhead on ones which aren't
disconnected. Install it before it suffers from more bit rot.
Stop pretending that long and int are the same size when picking status
highlight rule for gold or time or experience-points.
Also, K&R compilation might lack <limits.h>, so let XXXconf.h define the
necessary macro(s) (currently just LONG_MAX) so that it can be skipped.
More on clearing pickup_types so that autopickup reverts to picking up
evertyhing: for menustyle:Full and Partial, add a menu entry for 'all
classes' as an alternative to unselecting every class already set.
Also, Full and Partial had no way to include venom. Now it's a choice
when in wizard mode. There's still no way--other than switching to
Traditional or Combination--during normal play (where venom objects can
exist if they were wished for in wizard mode and then left in bones).
"Placing monster over another?" warning was triggered for vault guard
by an earlier change which made m_detach() stop removing monsters at
<0,*> from level.monsters[][]. So one guard would replace another at
<0,0> for however many guards were created, and memory for all but
the last one would be lost.
This involved a lot of flailing about and the patch includes various
things would could have been discarded. One or two extended monster
sanity checks are included, plus a couple of debugpline()'s for
tracking guard movement.
When clairvoyance revealed an underwater object and the player wasn't
being given a chance to browse for some other reason, the map didn't
get refreshed and the object stayed displayed with the water hidden
under it. Force a chance to browse when revealing underwater objects
despite that being intrusive when clairvoyance kicks in while walking
around.
Jumping or teleporting while levitating in xorn form wouldn't toggle
blocking of levitation when moving from open spots to wall/stone and
unblocking of same when moving the opposite way.
This handles those cases but there are no doubt others. The only
other one I checked was when failed #untrap moves hero onto trap.
That case works correctly--at least after this fix is in place.
Noticed while working on it: change of terrain didn't always update
the status line. When levitation became blocked, it still said Lev
and when unblocked, didn't say that. Next status update got status
condition back in sync.
Some code added for 3.6.1 tries to find the longest matching prefix
when comparing a user-supplied with previously set up fruit names.
It does so by temporarily replacing space with NUL then passing that
to makesingular(). After already having named a fruit (resulting in
something to try to compare with), attempting to assign a name
beginning with two or more spaces would yield an impossible "singular
of null?" warning.
After the warning, the name minus its leading spaces got successfully
assigned. I'm not sure why a single leading space didn't trigger it
too, nor where the leading (and trailing, if any) spaces are going
away when the name is assigned.
Fix by removing all leading and trailing spaces from a new fruit name,
and combine consecutive internal spaces to one, before any other
manipulations. (This can result in names that used to work as-is now
being simplified a bit--when consecutive internal spaces have been
given--but that shouldn't be a problem.)
Also, don't complain about "missing parameter for 'fruit:'" if user
hits <return> when prompted for fruit name by 'O'. An empty fruit
name at that stage is just a no-op.
After consultation with the original committer, this
is being pulled out, possibly revisited later. There was
originally meant to be a follow-up piece to this that he
never had a chance to integrate for various reasons.
add MM_NOGRP makemon() flag as a means of suppressing groups of monsters in
a couple places that warrant it when a specific monster type isn't
specified on the call to makemon()
In the 'special options' section at the end of 'O's menu, change the
spelling for the menucolors entry to "menu colors" so that it isn't
spelled exactly the same as the 'menucolors' boolean option. Only
affects what the player sees when reading that menu.
If player uses 'O' to add any menu colors and 'menucolors' boolean is
Off at the time, give a reminder to toggle it to On in order to have
those menu colorings become active. (Adding hilite_status entries has
a similar reminder for 'statushilites' if done while that is 0.)
With options along the line of
OPTIONS=statushilites:4
HILITE_STATUS=gold/always/yellow
gold started out unhighlighted (unhighlit?). I didn't try to figure
out why, just changed things to force a full status update when gold
requires internal changes (different \G encoding or different glyph)
which is something that happens when session first enters moveloop().
Inventory traversal can be disrupted when items being traversed are
able to change inventory. I've lost track of how many times this
sort of thing has been discovered.
Report claimed that boiled potion of polymorph caused transformation
which resulted in dropped weapon and dropped or destroyed worn armor.
That was evidently a guess; potionbreathe() for that potion only
abuses constitution. The traceback showed 'you_were()' was involved.
Boiled potion of unholy water triggers human-to-beast transformation
of hero inflicted with lycanthropy, yielding similar situation.
I didn't notice anything unusual when reproducing this but inventory
was definitely vulnerable. My 'one line' fixes entries are steadily
getting to be more verbose; I may have to go back to 'fix bug'. :-}
Report suggested that if hero is turning into green slime, genociding
green slime should cure it. I went another direction: if life-saved
while dying due to turning into green slime, you survive polymorphed
into green slime form. If green slimes have been genocided (probably
after becoming infected with slime or hero wouldn't have faced any
slimes to cause infection, but that could be from eating a glob of
green slime created prior to genocide, or from #wizintrinsic), you'll
immediately die again, this time from genocide.
When deciding whether to discard interrupted lock/unlock context while
changing levels, maybe_reset_pick() checks whether xlock.box is being
carried. But it was doing so after the old level had been saved and
memory for non-carried container there had been freed.
That led to a couple of other issues. context.travelcc was using -1
for 'no cached value', but the fields of travelcc have type 'xchar' and
shouldn't be given negative values. 0 should be fine for 'no cache'.
Failed partial restore which occurred after old game's context had been
loaded would begin a new game with old game's stale context. Restoring
goes out of its way to avoid that for 'flags' but didn't for 'context'.
hmon() can destroy the weapon being used, and known_hitum() would
still pass the pointer to the freed object to cutworm(). Remember the
relevant weapon attribute before using and maybe freeing the object,
then pass that attribute instead of the whole weapon. Also pass
'more-likely-to-cut' for axes in addition to blades.
thimonst() behaved similarly, although due to much different code
paths none of the objects that might get to hmon() were then passed to
cutworm(), so it wasn't vulnerable. But pass 'more-likely-to-cut'
for axes instead of for blades when thrown.
Change the command list to always include #shell and #suspend so that
a user's preferred key bindings can span platforms without worrying
about whether those exist or not. They're still effectively no-ops
when compiled out.
'#?' suppresses them from the list of displayed commands. Interface-
specific extended command handling may want to check new extcmd.flag
value CMD_NOT_AVAILABLE to do the same, but failing to do so shouldn't
pose a problem. They behave sanely if executed when not supported.
