From the newsgroup (subject: "3 xorn fixes"): casting spell of
protection would report "the air around you begins to shimmer" even when
you were embedded in rock or swallowed. It included a pointer to a patch;
I looked at that but ended up not using it.
Several small related changes that ended up being not quite so small:
Allow the Amulet of Yendor to be offered on the altar in the temple
of Moloch's Sanctum level; doing so is fatal. Fake ones can be offered
too, but that doesn't do anything special (they act the same as they do in
the temples on the Astral level). Unlike in the endgame, the Amulet and
its fakes aren't listed as likely candidate for #offer's pick-an-object
prompt; like the endgame, corpses must be carried rather than being on
the altar in order to be sacrificed.
Prevent non-chaotics from destroying the chaotic high altar on the
Astral level via same-race sacrifice. From a bug report. (Chaotics converting non-chaotic high altars
via same method was already handled. I think the behavior for ordinary
altars if wrong here; why should a chaotic altar be destroyed this way?)
Prevent demon princes and demon lords from being summoned in the
endgame. Lesser demons answer instead. Mostly prevents Yeenoghu from
being summoned by a chaotic who performs same-race sacrified on the
chaotic high altar, but might affect the Wizard and arch-liches too.
Identify (via ':', ';', '/') altars in temples on the Astral and
Sanctum levels as "high altars" rather than just as "altars". '/' and ';'
commands now work on those when you're adjacent, like they do when used on
adjacent high priests; from farther away, the altars' alignment is still
suppressed.
From a bug report: if swallowed and blind
and in quantum mechanic form, hitting the engulfer would yield "the <mon>
disappears" even though you were still swallowed by <mon>. The pre-teleport
criteria for whether you knew the target was there were different from the
post-teleport ones. Make them match; swallower will remain sensed by touch
and won't be described as disappearing.
A couple of months ago Michael forwarded a thread from the newsgroup
about how wielding a cockatrice corpse without gloves while polymorphed
into something capable of that would leave you wielding that corpse
bare-handed if you changed form, turned to stone, then got life-saved.
That got fixed; the corpse becomes unwielded. However, one of the
messages in that described a different bug: if you were wielding such a
corpse as a stone golem and cast stone-to-flesh at yourself, you would
continue to wield it bare-handed as a flesh golem. This makes you revert
back to stone golem once the first transformation has finished.
This also fixes an attribute exercising bug in polymon(). It was
being done after the polymorph was completed, so the attempt to exercise
Con didn't do anything because exercise() of anything other than Wis has
no effect when the hero is polymorphed.
From a bug report: entering lava cures sliming,
but if you got [re-]afflicted by green slime after becoming stuck in lava,
#sit failed to cure it. Fix that, and have sinking farther into lava cure
it too (although not necessarily right away).
Also, suppress leaving the corpse in a bones file for death caused by
being dissolved in lava. Lastly, suppress the "you rise from the dead as
a <monster>" message during bones creation when the game ends due to being
turned into green slime since you transformed rather than died (and sliming
timeout gives "you have become green slime" just prior to that).
Something's wrong with the way lava was being handled in moveloop().
If you were trapped in lava (ie, moved into some but didn't die on the
spot thanks to fire resistance), you could sink and ultimately die without
ever taking another actual turn (typing ``i<space>'' repeatedly is an easy
way to reproduce). [`didmove' was only being checked for the sinking
deeper case and not for the decrement which ultimately leads to the fully
sunk case.] On the other hand, if you could manage to start an occupation
and avoid being interrupted, you would never sink while it was in progress.
[Lava handling followed ``if (multi && occupation) { ...; continue; }''.]
While testing some other code (lava vs slime, coming shortly) I ended
up with the cursor sitting on the status line while the game was waiting
for me to enter my next move. I don't really understand what's going on
there, and moving the lava handling before bot() might have hidden that
particular problem now by changing the point at which Slime will get taken
off the status line, but this attempts to fix it anyway.
From a bug report: you
can dip a worn item such as shirt or suit into a potion of polymorph and
it will become unworn--but as of a couple of days ago, unworn only if the
transformed object's new form can't be worn in the same slot--even if it
is covered by a cursed worn item (suit or cloak). It didn't seem like
trying to fix that special case would be very worthwhile; this fixes the
more general situation of "you could dip worn items even though they were
covered up by other worn items".
In the same report: you could apply grease to rings while wearing
cursed gloves. The code already prevented greasing a suit when it was
covered by a cloak (regardless of whether that cloak was cursed), and a
shirt when it was covered by a suit or cloak or both. This moves that
code into a separate routine which is used for dipping as well as for
applying grease, and now handles rings vs gloves.
Since covered rings, shirt, or suit are no longer eligible to be
dipped or greased, this also makes "?" for the pick-an-item prompt leave
such things out of the list of likely candidates.
From a bug report: zapping a wand of striking or locking or spell of
force bolt or wizard lock up or down when standing at an open drawbridge's
portcullis didn't affect the bridge if the portcullis was positioned north
of the open span. One of the two drawbridges on the Valkyrie quest goal
level has that orientation. is_drawbridge_wall()'s name is somewhat
misleading; it isn't boolean and returns -1 rather than 0 for "no".
From a bug report. That's hard to fix in the general case because armor
and tools might not fit back into the same equipment slot, but most other
types of worn items can be re-worn after being transformed. This makes
any transformed worn item stay worn if it is wearable in the same slot.
simple_typename and obj_typename operate on item types rather than
particular objects so have to assume that the item involved has been seen.
That means that simple_typename(obj->otyp) is not suitable; if obj->dknown
hasn't been set, it gives away information. This adds mininal_xname(obj)
to be used for that purpose. I'm not aware of any straightforward way to
actually expose the original problem; it's more than hypothetical but not
something anyone's likely to have come across.
Not fixed: test driver program reveals that obj_typename(GOLD_PIECE)
and simple_typename(GOLD_PIECE) yield "coin of gold piece". But I don't
think there's any way to get nethack to show that to the user.
Noticed when examining resists_magm() while working on anti-magic
traps: if you were polymorphed, you would be granted magic resistance by
keeping a cloak of same or gray dragon scales/mail in your quiver slot,
your alternate weapon slot, or main weapon slot (ie, by wielding it). And
you obtained light-based blindness resistance regardless of whether you
were polymorphed if you carried a potion of blindness in any of those slots.
Make anti-magic fields do something against targets which have magic
resistance, expanding the functionality of that trap type and giving a
minor drawback to the most valuable intrinsic in the game. Make them work
against monsters too.
Heroes who lack magic resistance lose spell energy as before, except
that if they drop below 0 they don't take as hard a hit against max spell
energy as they used to. Monsters with spell or breath attack and lacking
magic resistance get their ability-last-used field bumped up a little bit,
so they can't cast or breathe for a few turns. Heroes and monsters who
have magic resistance take HP damage instead. I retained the concept of
feeling lethargic when being hit by something which normally drains enery,
and also tried to make it be the inverse of a "magical explosion": the
message refers to torpor/lethargy/sluggishness and cause of death if the
damage happens to be fatal is "anti-magic implosion". The latter suggests
some sort of compression, so creatures who can pass through walls (xorns
and ghosts) have been given partial resistance and take reduced damage.
If a Rider's corpse revival timer ends with failure (presumeably
because the level has become entirely filled with monsters), give it a big
chance to try again in a few turns instead of always rotting the corpse
away. Also, if there is another monster standing on the corpse when it's
due to revive, try to bump that monster out of the way to let the Rider
revive in place instead of having it be diverted to some other location.
High resistance made the Riders unlikely to be polymorphed, but
they were susceptible to being turned into green slime (and then never
reviving if killed in that state). Now they'll be immune to both types
of transformation.
<email deleted>:
> If you enter a magic trap on the same turn that you lose your levitation
> and "float gently to the floor", you are hit by the trap twice.
I don't think this is actually a bug, but it does look fairly strange
if there aren't any monsters attacking (after you move on to the trap,
monsters get a chance to move too before timeouts are run, but if there
aren't any messages triggered by monster activity then it feels like the
timeout and second activation happens immediately). To prevent this, if
levitation is due to time out on the same turn that a trap is being
entered, either extend the duration by an extra move or make it end
immediately instead of waiting until end of current turn. Deferring
timeout is a lot easier but doing that unconditionally would allow player
to move back and forth between adjacent traps without ever descending.
The early timeout might lead to anomalous behavior in obscure cases; it
seems to be working ok so far though.
Noticed while tracking down the "you die..." situation. Duplicating
instapetrify()'s resistance checks is useful here, but there's no need to
also duplicate its death handling.
Eliminate the somewhat redundant "You die..." following "You turned
to stone..." when becoming petrified by touching a cockatrice (reported
by <email deleted> for kicking, but occurs for weaponless hitting too).
Also, if a cockatrice killed you with normal damage, your tombstone would
erroneously report petrification and presumeably there'd be a statue
instead of a ghost in the resulting bones file. This fixes both things.
Using #tip (post-3.4.3 code) on a container that's on a shop floor
didn't handle ownership correctly. Bag of tricks could be emptied for
free, and contents of other containers were being sold to the shop even
when the shop already owned them. This fixes bag of tricks and makes a
first cut at doing so for regular containers.
Message handling when #tipping any bag of tricks was also suboptimal
since the decision about message delivery was made again as each charge
released something instead of waiting until the whole bag was emptied.
So you could get inappropriate "nothing seems to happen" before or after
a monster visibily popped up if something unseen was also produced.
Some code I recently added was misusing count_unpaid() and would
traverse some or all of inventory instead of just container's contents
when looking for unpaid items. Add mew routine `is_unpaid(obj)' to do
what I was intending to do with count_unpaid().
The earlier change involving "you sneaky cad!" got me wondering, so
I looked up cad in the dictionary: "an ungentlemanly man". I can see
that being extended to a male gnome, even to an orc, but not to a women.
Use verbalize instead of pline for shop "thank you, scum" message
(From a bug report. Suppress shop "you sneaky cad" message
when removing a hero-owned pick-axe from a container inside a shop if the
shk is unable to speak; also give it at most one time per move (taking
multiple pick-axes out of a bag at once was way too verbose). Honor
addtobill's silent flag for the bill overflow message when/if that occurs.
Also adds a safe_qbuf usage for the #tip command that I had pending
for pickup.c.
Make objects created by applying or #tipping a horn of plenty which
is owned by a shop also start out being owned by the shop. That's in
addition to the usage charge for using an unpaid item.
I think wishes conferred by unpaid objects, or by entities released
from unpaid objects, should probably work that way too, but have left
that alone.
[I can't get access to my mail at present, but `cvs update' shows
that there aren't any patch notification messages pending for me.]
Extend a pre-3.4.3 fix--for objects picked up in an untended shop--
to container contents. Without it, dropping a bag or box in a tended shop
and declining to sell it, then picking it back up after the shop has become
untended (shk killed or evicted) would leave the contents with no_charge
set. After that it could be sold in another tended shop, picked back up
for free, then kept or sold a second time. (Picking it back up in the
tended shop would clear the bit; afterwards it behaved normally. And it's
not something prone to abuse; if you can make a tended shop become untended
you really don't need to sell stuff twice. But it'd be noticeably wrong if
anyone ever stumbled across it.)
Inventory display adds "(unpaid, N zorkmids)" to carried unpaid
items, but it didn't show anything comparable for indirect unpaid ones
(hero-owned containers holding shop-owned objects). Now it will include
"(contents, N zorkmids)" in such cases.
Allow '#' as a destination slot if you've given '#' as the source
and there aren't any available inventory letters, making it possible to
use doorganize()'s feature of merging compatible items into one slot even
when that slot is #. ('#' won't work as a destination when the source is
from a regular letter. If the player wants to swap something in letter
slot x with whatever is in the # slot, he'll have to use # -> x rather
than x -> #.)
Also, a post-3.4.3 change made it possible to produce an inventory
that used duplicate letters. Giving a count while specifying the source
slot splits the source object. But the extra '?' choice added to show
inventory letters in use didn't undo the split if player hit ESC to quit
early instead of specifying a destination slot.
Lastly, don't prompt forever if the user doesn't give a valid
destination letter; give up after 5 attempts.
Prevent getobj() from overflowing its inventory letter collection
buffer if someone figures out some new way to fill up their inventory with
a huge number of # entries. Inventory manipulation might become crippled
at that stage but at least it shouldn't be able to trigger a crash.
Also, the !fixinv configuration was never taught about # and did
strange things if you had more than 52 items, both for inventory display
and object selection with getobj.
The reassign()/getobj() situation is definitely confused regarding
gold, using GOLD_SYM in some places and def_oc_syms[COIN_CLASS] in
others, and it's schizophrenic about whether the GOLDOBJ configuration
keeps gold in a letter slot or specially named $ slot. I'm sure there
are some problems there but I'm not planning to try to figure them out.
Prevent heroes in giant form from picking up boulders once they run
out of available inventory slots to avoid an uncontrolled number of '#'
entries. There is an exception: if not already carrying any boulders,
they can put one into the '#' slot. Loadstones are treated the same way,
although since they stack and are rare to begin with, someone would have
to have gone far out of their way to have gotten many # entries with them.
Assuming that you can get something other than a boulder or loadstone
into the # slot (which is definitely possible, I just can't remember how),
you could relatively easily get three total # entries by picking up a
loadstone and polying into a giant and picking up a boulder. But I don't
think there's anything wrong with that.
If someone manages to get three or more items with inventory "letter"
'#', compact inventory selection prompts to list "#-#" instead of showing
every #. It isn't possible to selectively pick a particular one anyway,
so this doesn't affect player choices.
1 #: Which item? [$#a-zA-Z]
2 #: Which item? [$##a-zA-Z]
3 #: Which item? [$#-#a-zA-Z]
4 or more #: same as 3.
This doesn't address the fact that picking up enough boulders as a
giant might overflow the BUFSZ buffer getobj() uses to collect inventory
letters prior to calling compactify() on them.
[I accidentally left this out of the previous commit.]
Throwing didn't handle a container owned by the hero which contained
items owned by the shopkeeper. I'm still not quite sure what's going on
there, but throwing the container out of the shop didn't give any feedback
but did add to shop charges which don't show up in ``I x'' (but do get
revealed by ``$'' or ``I $''). Now there's some shop feedback for the
throw and the contents show up for ``I x''.
Try to fix multiple container-in-shop bugs; it seemed as if every time
I tried to investigate one I stumbled into another. billable() (post-3.4.3
code, but already present in branch as well as trunk) didn't handle
containers properly. It sometimes gave the wrong answer and it didn't
clear the no_charge flag of contained items as the old code in addtobill()
it replaced did. stolen_value() didn't use the actual bill price for an
item already on the shop bill; it generated a new price which might be
different if the object was unID'd (3.4.3 had this one). Throwing didn't
handle a container owned by the hero which contained items owned by the
shopkeeper. I'm still not quite sure what's going on there, but throwing
the container out of the shop didn't give any feedback but did add to shop
charges which don't show up in ``I x'' (but do get revealed by ``$'' or
``I $''). (This was intertwined with some of the other stuff and I don't
know how 3.4.3 behaved in this regard. Now there's some shop feedback for
the throw and the contents show up for ``I x''.) An unpaid container which
contained another nonempty unpaid container showed a different price when
picked up and in inventory display [k - a bag (unpaid, NNN zorkmids)]
compared to what was on the bill and showed by ``I u'' because the first
two included double billing of the nested container (just it, not its own
contents). [There where a few recursive calls of the form
x += func(x)
which should have been either
x = func(x)
or x += func(0).] Purchasing used the right amount, I think. I'm not
sure whether 3.4.3 had this particular bug or whether fixes for some of its
other container bugs inadvertently caused this one.
This patch also changes stolen_container() to work like the other
recursive shop routines: it just handles the contents, leaving the outer
container itself to be handled by its caller. It seemed inconsistent, and
changing it simplified the fix for using bill price on stolen unpaid items.
Eliminate a couple of minor redundancies; no change in game play.
dropy() - only check about selling object if there is a shop on the level.
pick_obj() - leave it to addinv() clear object's no_charge bit.
This eliminates a whole bunch of the "Query truncated" entries in
the nethack.alt.org paniclog file by using safe_qbuf() where applicable.
It also makes selling queries and some other shop messages be less verbose
when shopkeepers are invisible (not uncommon after characters achieve see
invisible capability) by using shkname() to get "Manlobbi" instead of
Monnam()'s "Manlobbi the invisible shopkeeper" (something I had planned
to do even before seeing the truncations in that paniclog; repetition of
"the invisible shopkeeper" was very annoying when stepping through
multiple unpaid objects with itemized billing).
This also simplifies several GOLDOBJ conditional sections which
happened to be near the other code I was modifying.
- ensure that wchar.h is included even if it is not included
from another system header file as it is on some platforms.
- attempt to make the NHWCHAR_P definition more appropriate
for more platforms.
Change safe_qbuf() so that instead of picking one of three strings
for sprintf() to plug into a prompt string, it actually constructs the
full prompt string itself. Also pass in the unformatted object and a pair
of formatting functions instead of performing dual formatting in advance.
The actual formatting is done via new routine short_oname() which also
takes an object and a pair of formatting routines plus a target length.
It uses the first routine, typically xname() or doname(), and formats the
object, then if the result is too long it makes some transformations, and
tries again. If truncating "called foo" and "named bar" down to 12 chars
and omitting "uncursed, rustproof, thoroughly corroded" attributes still
result in a string that's too long, it uses the other formatting routine.
The latter calls one of several jacket routines around simple_typename()
to produce a short result.
This has been through about four incarnations now and has gotten a
bit less testing each time, but I need to get it in place before I end up
running out of gas and abandoning it. I've got some changes to shk.c
(where safe_qbuf is needed but not currently used) that now need to be
redone and will come eventually.
Explicitly truncate the query prompt string to QBUFSZ-1 characters.
For tty and Amiga, no longer include the choices and default within that
length limit; use a bigger buffer to hold them along with the prompt.
[See cvs log for doc/window.doc for more details.]
Explicitly truncate the query prompt string to QBUFSZ-1 characters.
For tty and Amiga, no longer include the choices and default within that
length limit; use a bigger buffer to hold them along with the prompt.
-----
While trying to eliminate the "Query truncated" entries present in
nethack.alt.org's paniclog, I seem to keep going backwards. Allowing
<win>_yn_function() to accept a full QBUFSZ worth of characters will
simplify the existing yn_function() in the core and greatly simplify the
revised safe_qbuf() I've been working on.
Some interfaces don't seem to care how long the prompt string is; I've
left those along. Several of the others already copied the prompt string
into a BUFSZ sized buffer instead of a QBUFSZ sized one, making them
unlikely to suffer from buffer overflows. This changes the rest (just tty
and Amiga, I think) to do the same. Also for all that have any size
constraint, it now truncates the prompt query to QBUFSZ-1 chars as it is
used rather than continue to rely on the caller doing so. This assumes
that appending the set of acceptable choices and the default response won't
overflow, which is a safe assumption unless/until QBUFSZ gets enlarged til
it's too close to BUFSZ.
Only tty's topl.c has been tested. The others should work ok, but
might possibly be bitten by a typo or two. Qt's implementation of the X11
"slow" method (reusing a persistant one-line window for prompts) has been
handled, but its C++ class-based variant is untouched; NetHackQtYnDialog::
Exec() is completely baffling to me but doesn't appear to have any length
issues.
According to a newsgroup followup, a hidden pet summoned via magic
whistle could produce the same effect as the level change case (where
sometimes the glyph for unseen monster would appear unexpectedly). I was
unable to reproduce this one, but I don't see anything in the code to deal
with the situation, so I suspect that the monster is moving immediately
and being revealed before I have a chance to notice anything odd.
I assume that other situations where hidden monsters get teleported
are being handled as attacks which expose them. At least I hope so.
From the newsgroup: if a pet was hiding under an object next to you
when you changed levels, it could arrive hidden at the destination if there
was something available to hide under there too, and sometimes you'd start
the new level with a hidden monster glyph at its location. I was able to
reproduce that once with current trunk code, but while trying to figure
out what is actually happening I've been unable to make it happen again.
However, it doesn't make sense for a monster to be able to remain in hiding
during the level change in the first place, so this patch prevents that.
(I'd still like to know how/why map_invisible() is sometimes getting called.
[The test character was a level 1 tourist without auto-search capability.]
I'm reasonably sure that it won't happen any more once this fix in place.)
This also brings adjacent pets out of hiding when they accompany you
during ascension or dungeon escape, but it seems that that wasn't actually
necessary. The end of game disclosure already lists such by name rather
than as "it", contrary to my expectations. (I had forgotten that end-of-
game forces true names so that blindness and hallucination don't interfere
with disclosure; obviously that ends up handling hidden monsters too.)
This patch attempts to add some levels of unicode support
to NetHack.
The master on/off switch for any Unicode support is
defining UNICODE_SUPPORT in config.h. Currently
there is code support for two subsets of unicode support:
UNICODE_DRAWING
If UNICODE_DRAWING is defined, then the data
structures used to house drawing symbols are expanded
to the size of wchar_t, big enough to hold unicode characters.
A typdef called `nhsym' is involved and if UNICODE_DRAWING
is defined, it is wchar_t, otherwise it is uchar.
UNICODE_WIDEWINPORT
If UNICODE_WIDEWINPORT is defined, then the data
structures inside the window port are expanded to the size of
wchar_t, big enough to hold unicode characters. Both map
symbols and text within the window port are expanded, in order
for potential support for displaying multinational characters some
day, but this patch only provides viewing of map symbols.
A typdef called `nhwchar' is involved and if UNICODE_WIDEWINPORT
is defined, it is wchar_t, otherwise it is char.
The only window port with code support for UNICODE_WIDEWINPORT
currently is the TTY port. Don't enable UNICODE_WIDEWINPORT
unless:
- it is a TTY port
- the underlying platform specific routines can
handle the larger data structures.
Don't enable UNICODE_SUPPORT unless:
- your compiler can handle wchar_t.
- your compiler can accept L'a' characters.
- your compiler can accept L"wide" strings.
Note that if your compiler can handle the above, you could
enable the larger data structures (currently if TTY) even if your
platform can't actually display unicode or UTF-8, by messing
with u_putch() in win/tty/wintty.c to only deal regular chars.
That should be the only function that actually pushes wide characters
out to the display.
If you enable UNICODE_SUPPORT, and your platform is capable
you will need to turn on the unicode run-time option to be able to
load unicode character sets from the symbol file, to be able to
push unicode characters to the display. You'll also want to load
a unicode symbol set once the unicode option is toggled on. In
a config file you would do that via these two lines:
OPTIONS=unicode
OPTIONS=symset:Unicode_non_US
The repository was stamped with NETHACK_PRE_UNICODE
prior to applying this patch, and stamped with
NETHACK_POST_UNICODE afterwards. The code differences
between those two tagged versions are this patch.
This patch attempts to add some levels of unicode support
to NetHack.
The master on/off switch for any Unicode support is
defining UNICODE_SUPPORT in config.h. Currently
there is code support for two subsets of unicode support:
UNICODE_DRAWING
If UNICODE_DRAWING is defined, then the data
structures used to house drawing symbols are expanded
to the size of wchar_t, big enough to hold unicode characters.
A typdef called `nhsym' is involved and if UNICODE_DRAWING
is defined, it is wchar_t, otherwise it is uchar.
UNICODE_WIDEWINPORT
If UNICODE_WIDEWINPORT is defined, then the data
structures inside the window port are expanded to the size of
wchar_t, big enough to hold unicode characters. Both map
symbols and text within the window port are expanded, in order
for potential support for displaying multinational characters some
day, but this patch only provides viewing of map symbols.
A typdef called `nhwchar' is involved and if UNICODE_WIDEWINPORT
is defined, it is wchar_t, otherwise it is char.
The only window port with code support for UNICODE_WIDEWINPORT
currently is the TTY port. Don't enable UNICODE_WIDEWINPORT
unless:
- it is a TTY port
- the underlying platform specific routines can
handle the larger data structures.
Don't enable UNICODE_SUPPORT unless:
- your compiler can handle wchar_t.
- your compiler can accept L'a' characters.
- your compiler can accept L"wide" strings.
Note that if your compiler can handle the above, you could
enable the larger data structures (currently if TTY) even if your
platform can't actually display unicode or UTF-8, by messing
with u_putch() in win/tty/wintty.c to only deal regular chars.
That should be the only function that actually pushes wide characters
out to the display.
If you enable UNICODE_SUPPORT, and your platform is capable
you will need to turn on the unicode run-time option to be able to
load unicode character sets from the symbol file, to be able to
push unicode characters to the display. You'll also want to load
a unicode symbol set once the unicode option is toggled on. In
a config file you would do that via these two lines:
OPTIONS=unicode
OPTIONS=symset:Unicode_non_US
The repository was stamped with NETHACK_PRE_UNICODE
prior to applying this patch, and stamped with
NETHACK_POST_UNICODE afterwards. The code differences
between those two tagged versions are this patch.