Remove start_screen() and end_screen() from the
Window-port interface.
They were only ever used by tty, and there was a comment
carried to several window-ports about how they "really
should go away. They are tty-specific"
term_start_screen() and term_end_screen() are part of
terminal/NO_TERMS supporting routines now.
Add a note about NO_TERMS to include/wintty.h for clarity.
Rename tty_startup and tty_shutdown to term_startup() and
term_shutdown(). They are found in termcap.c for !NO_TERMS
like most of the other term_ routines, as well as having
versions for several of the NO_TERMS platforms. They aren't
part of the tty_interface called from the core. The tty
implementation does call and rely on them.
Remove some conditional #ifdef's around term_shutdown()
(formerly tty_shutdown()) and just ensure that all the
tty platforms have an implementation that they can link
with, even if it is just a stub presently.
Put the protype for nethack_exit in extern.h to reduce
maintenance to a single spot, and remove it from other
locations. A warning in the msdos cross-compile led to
this change.
Options processing can be early, even before ttyDisplay is allocated.
If we find that TTY_PERM_INVENT initialization is happening too early,
just set a marker (iflags.perm_invent_pending) to try again a bit later.
The changes in win/share are just to be able to sucessfully
reproduce the original issue on Windows. It was easily reproduced
on Unix, just by building with TTY_PERM_INVENT in include/config.h
and setting OPTIONS=perm_invent in config file.
ENHANCED_SYMBOLS is defined by default in config.h.
The msdos build tried to #undef ENHANCED_SYMBOLS
in tilemap.c, but doing it in there created a mismatch
between the data struct definition for glyph_map in wintype.h
and the initializers generated in tilemap.c
Move the msdos build catch for ENHANCED_SYMBOLS to
one single place in config1.h so that the code and data agree.
gcc has recognized various "magic comments" for white-listing
occurrences of implicit fallthrough in switch statements for
a long time:
The range and shape of "falls through" comments accepted are
contingent upon the level of the warning. (The default level is =3.)
-Wimplicit-fallthrough=0 disables the warning altogether.
-Wimplicit-fallthrough=1 treats any kind of comment as a "falls through" comment.
-Wimplicit-fallthrough=2 essentially accepts any comment that contains something
that matches (case insensitively) "falls?[ \t-]*thr(ough|u)" regular expression.
-Wimplicit-fallthrough=3 case sensitively matches a wide range of regular
expressions, listed in the GCC manual. E.g., all of these are accepted:
/* Falls through. */
/* fall-thru */
/* Else falls through. */
/* FALLTHRU */
/* ... falls through ... */
etc.
-Wimplicit-fallthrough=4 also, case sensitively matches a range of regular
expressions but is much more strict than level =3.
-Wimplicit-fallthrough=5 doesn't recognize any comments.
Plenty of other compilers did not recognize the gcc comment convention,
and up until now the compiler warning for detecting unintended
fallthrough had to be suppressed on other compilers. That's because the code
in NetHack has been relying on the gcc approach, and only the gcc approach.
The C23 standard introduces an attribute [[fallthrough]] for the
functionality, when implicit fallthrough warnings have been enabled.
Several popular compilers already support that, or a very similar attribute
style approach, today, even ahead of their C23 support:
C compiler whitelist approach
--------------------------- -------------------------------------
C23 conforming compilers [[fallthrough]]
clang versions supporting
standards prior to
C23 __attribute__((__fallthrough__))
Microsoft Visual Studio
since VS 2022 17.4.
The warning C5262 controls
whether the implict
fallthrough is detected and
warned about with
/std:clatest. [[fallthrough]]
This adds support to NetHack for the attribute approach by inserting a
macro FALLTHROUGH to the existing cases that require white-listing, so
other compilers can analyze things too.
The definition of the FALLTHROUGH macro is controlled in include/tradstdc.h.
The gcc comment approach has also been left in place at this time.
The g? structs had a mix of variables that were written to
the savefile, and those that were not.
For better clarity and to distinguish those that end up in
the savefile, relocate some g? variables that get written
directly to the savefile into different structs.
This updates EDITLEVEL, although technically it probably
didn't need to, since savefile contents are not changing.
Details:
gb.bases -> svb.bases
gb.bbubbles -> svb.bbubbles
gb.branches -> svb.branches
gc.context -> svc.context
gd.disco -> svd.disco
gd.dndest -> svd.dndest
gd.doors -> svd.doors
gd.doors_alloc -> svd.doors_alloc
gd.dungeon_topology -> svd.dungeon_topology
gd.dungeons -> svd.dungeons
ge.exclusion_zones -> sve.exclusion_zones
gh.hackpid -> svh.hackpid
gi.inv_pos -> svi.inv_pos
gk.killer -> svk.killer
gl.lastseentyp -> svl.lastseentyp
gl.level -> svl.level
gl.level_info -> svl.level_info
gm.mapseenchn -> svm.mapseenchn
gm.moves -> svm.moves
gm.mvitals -> svm.mvitals
gn.n_dgns -> svn.n_dgns
gn.n_regions -> svn.n_regions
gn.nroom -> svn.nroom
go.oracle_cnt -> svo.oracle_cnt
gp.pl_character -> svp.pl_character
gp.pl_fruit -> svp.pl_fruit
gp.plname -> svp.plname
gp.program_state -> svp.program_state
gq.quest_status -> svq.quest_status
gr.rooms -> svr.rooms
gs.sp_levchn -> svs.sp_levchn
gs.spl_book -> svs.spl_book
gt.timer_id -> svt.timer_id
gt.tune -> svt.tune
gu.updest -> svu.updest
gx.xmax -> svx.xmax
gx.xmin -> svx.xmin
gy.ymax -> svy.ymax
gy.ymin -> svy.ymin
Related note:
There are some pointer variables that are heads of chains that were not
moved from 'g?' to 'sv?', because they are not actually written to the
savefile directly, but the objects/monst/trap/lightsource/timer in the
chains they point to are. That can be changed, if desired.
Examples: gi.invent, gm.migrating_objs, gb.billobjs, gm.migrating_mons,
gf.ftrap, gl.light_base, gt.timer_base
Pull request from mkuoppal: avoid integer overflow when user types
digits and they're combined into a number by successively multiplying
intermediate value by 10 and adding new digit. Needed to avoid
triggering undefined behavior if the value overflows the largest
signed integer (actually long int).
This is a much more general fix than the code in the pull request,
which imposed an arbitrary limit for one aspect of tty input.
I'm not convinced that integer.h was the right place to add the new
AppendLongDigit() macro. I may not have caught all the places where
it is needed. files.c accumulates a value from digits but uses
unsigned int, so overflow won't trigger undefined behavior (although
it presumably ends up with a different value than what was intended).
options.c and coloratt.c accumulate smaller integers and have a limit
on the number of digits they'll use, so can't overflow.
Fixes#1254
Honor the objection to an earlier change to tty_curs(), despite the
fact that it seems delusional. Four integer comparisons per cursor
positioning call affect the throughput of cmov(), but only if the
program is built without DEBUG defined?
More analyzer induced hackery. If tty_curs() discovers that the x,y
passed to it are no good, don't use them, even if that results in
the next output being in the wrong place.
The old issue of behaving differently when built with DEBUG defined
versus when it is not defined is fixed in a different way.
For curses, behave like tty by keeping a count of messages issued via
raw_print, then if that is non-zero issue a prompt and require the
player to acknowledge them before it erases the screen. Mainly so
that complaints during RC file processing will be seen.
For tty, force getret() to be an unconditional routine instead of
sometimes a routine, sometimes a macro which calls another routine.
For tty, make hitpointbar blink if current HP falls to the critical
HP threshold. Doesn't require status highlighting. Not changed:
when status highlighting is active, use the HP color but force the
attribute to be inverse (plus blink if the criterium is met) rather
than whatever the HP highlight specifies.
For curses, do the same thing. It used to honor HP attribute for
hitpointbar, now it behaves the same as tty: always inverse, maybe
combined with blink. The new code assumes that inverse and color
can be turned off without turning off active blink in the process.
I had intended to make hitpointbar be a full-fledged status field
(which happens to be rendered on top of title) so that it could be
highlighted differently from hit points (mainly so that one could
highlight up and down changes while the other showed percentages).
This is less versatile than that but much simpler.
Use vi (cursor_invisible) and ve (cursor_normal) to hide and show
cursor, if the terminal supports those. This way on a slower
connection the cursor doesn't jump all over the place when doing
map or menu updates.
Unresolved display issues with rxvt-unicode after the optimizations
dealing with switching between DECgraphics line-drawing character set
and normal character set.
Effectively comment them out rather than revert the commits.
move the custom color data into its own field in the glyphmap
and disassociate it from the unicode/utf8 stuff.
move the glyphcache stuff during options processing and parsing
into new file glyphs.c and out of utf8map.c, and make it
general, and not part of ENHANCED_SYMBOLS.
Do the groundwork for allowing glyph color customizations to
work when any symset is loaded and not restrict it only to
the enhanced1 H_UTF8 symsets.
The customizations in effect are still affiliated with a particular
symset.
Also closes#1224, but the PR itself references a data structure
made obsolete by this commit. The curses comment from the PR was
added into the code.
The PR also made several suggestions, but only the first
one has been included in this commit (and no longer based on
the handler), that being:
"allow defining colors if other symbol handling modes are used
(possibly limited to the standard 16 colors)."
FredrIQ also wrote the following suggestions in PR#1224:
Something I was also contemplating, unrelated to implementation of this
support in curses, would be the ability for the following:
allow defining colors if other symbol handling modes are used (possibly limited to the standard 16 colors)
allow defining attributes (for example: glyph:G_pet_female_kitten:U+0066/red/underline)
allow specifying glyphs as wildcards for defining global color/attribute changes
Something I also want to see are keywords for "don't change the current defined data". If this
were to be added, you could for example do this:
OPTIONS=glyph:G_*_fox:U+0064/blue
OPTIONS=glyph:G_statue_*:basechar/gray/underline
for "make all foxes use a blue color, make all statues gray with underline" without needing
to specify the relevant character for every statue. This ("basechar", "basefg", etc)
should perhaps also be added for MENUCOLORS and statushilites, so that you can, for
example, underline all items being worn without needing to specify a bunch of
near-duplicate rules for combining BUC colors + underline worn items
as per #1064
The 0x1000000 bit (NH_BASIC_COLOR bit) was used to mark
CLR_BLACK when storing it in u->ucolor. Now, all of the basic CLR_*
colors are stored that way.
The NH_BASIC_COLOR bit indicates that the value in u->ucolor is
not an rgb value, rather it is one of the 0-15 basic NetHack colors.
The window-ports need to strip the NH_BASIC_COLOR bit off before using
it for color changes.
Add options 'showvers' (boolean) and 'versinfo' (numeric mask) to
show nethack's version on the status lines during play. It won't be
particularly interesting to ordinary players but should be useful
when making screenshots or video to be streamed, or for someone who
switches between git branches or between nethack and variants.
I worked on this several months back but it was combined with
unfinished changes to 'hitpointbar'. I've separated it out so that
it can be put into use. When enabled, one or more components of
"<name> <branch> <version>" will be shown right justified after
status conditions. At present the default is "<branch>" if that is
available and overall status isn't 'released', or "<version>" if
'released' or if branch isn't available. That might need some
refinement.
It works as intended for tty and curses, although some abbreviation
mechanism would be useful if/when the program resorts to abbreviating
status conditions to make things narrow enough to fit.
For X11, it works ok for fancy_status:True (the default, controlled
via NetHack.ad settings) but is messed up for tty-style status. The
text is positioned correctly but there are gaps in it, making it
appear garbled, similar to what I saw when I tried and failed to
implement statuslines:3 for X11. [It might be due to having empty
condition widgets be 1 pixel wide instead of being totally removed
but I don't think the situation is that simple.]
For Qt, if the text needs to be truncated in order to fit, the center
portion of the string will be shown, discarding parts from the left
and right. That ought to discard from left and retain rightmost
portion instead.
For win32|mswin|Win GUI, no attempt to support it has been included.
Things should be ok when 'showvers' is left as False (the default)
but I don't know what will happen if that gets toggled to True. At a
minimum, the version info won't be right justified. The information,
or at least some of it, is displayed in the game window's title bar
so there isn't any pressing need to add it to status, but toggling
the option will need to behave sensibly if it doesn't already.
If a termcap entry for ending attributes and color also contains
the code to switch from secondary font back to primary (HE_resets_AS
hack), maybe strip the AS code out of HE (and clear the HE_resets_AS
flag) when setting up DECgraphics. Affects whether nethack sends
extra AS sequences while rendering a run of VT line-drawing chars.
My HE doesn't reset AS so that aspect hasn't been exercized.
When switching back and forth between normal and line-drawing,
defer the switch away from line-drawing if the character will be
rendered the same in both character sets (uppercase letter, digit,
most punctuation). That might just defer the AE, but could skip it
and next AS depending on what characters are written. The cycle
might repeat an arbitrary number of times, avoiding sending many
AS+AE combinations rather than just one.
Both of these optimizations are pretty small but reducing the number
of characters sent from a server to a remote user is worthwhile.
Add a comment about something that occurred to me when fixing the
^C-during-DECgraphics-output situation several days ago. I don't
think there's any compelling reason to avoid this optimization, but
this only describes it without actually implementing it.
For tty, if ^C interrupt occurred while the terminal was displaying
VT line drawing characters, it wouldn't finish updating the map and
switch back to regular characters, so the "Really quit?" prompt was
illegible.
Rather than muck about with the signal handler, just add a fixup to
tty_putstr() since prompting ultimately uses putstr(WIN_MESSAGE).
Reproducing the situation isn't straightforward; I didn't even try.
The change 3 weeks ago for #4059 (to fix tty perm_invent memory leak)
resulted in nethack crashing during exit if built with TTY_PERM_INVENT
enabled and ending the game when perm_invent window isn't displayed.
This exits cleanly with or without perm_invent being shown and avoids
the memory leak which triggered the prior change.
As part of the tty resize handling revision, code dealing with the
perm_invent window was moved out of tty_destroy_nhwindow() was moved
into a separate routine. The new routine would have been called for
a window of NHW_PERMINVENT, but WIN_INVENT doesn't have that type,
just ordinary NHW_MENU, so the cleanup wasn't happening, resulting in
a memory leak.
I think this fixes all problems with the boundary boz drawn around
perm_invent. Also, if you enabled perm_invent in inuse_only mode
while there are already more items in use than would fix in the
available number of lines, it wasn't switching to two columns until
the next update_inventory(). And the new color handling wasn't
incorporate into tty_refresh_inventory() so after a corner window
clobbered some of perm_invent, it got redrawn but without color,
again until the next update_inventory().
With any luck this fixes more bugs than it introduces....
