From the newsgroup: identifying by menu pops up multiple menus in
succession if the player picks fewer invent entries than are being
granted, but the second and subsequent ones could cover up the
message window and hide the feedback from prior ones.
If multiple popup menus are needed when identifying, issue --More--
before each menu after the first. The code seemed to be trying to
do this already, but it should have used wait_synch() rather than
mark_synch(), or perhaps used display_nhwindow(WIN_MESSAGE, TRUE)
instead of either one of those. For curses, both mark_synch() and
wait_synch() were no-ops. Now they do something. X11's behavior
wasn't right either; it seemed to be lagging one message behind
(something I had noticed recently and then forgotten about; I still
don't remember the context then so don't know whether this fixes
that earlier situation).
The consolidation of global variables from scattered source
files into decl.c and declared in decl.h was begun in 3.7.0.
Their placement in common files was done for centralized
initialization and potential re-initialization during a
"play again" scenario.
It wasn't really necessary for all of them to be housed in a
single huge structure to meet the "play again" requirement,
and the single huge structure has been a little unwieldy when
it comes to maintenance.
Following this commit, instead of one single extremely large structure
named 'g' to house all of the relocated global variables, they
are distributed into several ga through gz.
To make things easy for the developer, each variable is placed
into the struct corresponding to the starting letter of the variable.
That way, no lookup is required in order to know which struct houses
a particular variable, it is a simple match to the starting letter
for all the centralized global variables.
A global variable named 'amulets', would be found in ga.
ga.amulets
^ ^
A global varable named 'move', would be found in gm.
gm.moves
^ ^
A global variable named 'val_for_n_or_more' would be found in gv.
gv.val_for_n_or_more
^ ^
A global variable named 'youmonst' would be found in gy.
gy.youmonst
^ ^
Instead of using index() macro defined to strchr, use C99 strchr.
Instead of using rindex() macro defined to strrchr, use C99 strrchr.
If you want to try building on a platform that doesn't offer those
two functions, these are available:
define NOT_C99 /* to make some non-C99 code available */
define NEED_INDEX /* to define a macro for index() */
define NEED_RINDX /* to define a macro for rindex() */
(user-side decisions really, but as it stands right now
user-side decisions/options are made and processed by the core)
add a parameter to add_menu so color can be passed
Make sure g.hero_seq has a sane value during restore before moveloop()
has a chance to update it.
Have curses use g.hero_seq for messages delivered via putmsghistory().
Switch from 'moves' to 'hero_seq' for tracking whether consecutive
messages were issued on the same move and for whether current move
is still same one after played has responded to --More-- with ESC.
This is comparable to the recent fix for tty. When messages aren't
currently being suppressed by use of ESC at --More-- (">>" for
curses), if an urgent message itself triggers --More--, don't start
suppressing messages if player dismisses it with ESC.
This one has me baffled, first how/when it happened and then why no
one reported it. The line
current_mesg->turn = g.moves;
vanished from mesg_add_line() at some point. It is visible in diff
context of commit 99ed00012e from March,
2019 but I can't find any commit since that time which removed it.
[I've been using
git log --no-min-parents --no-max-parents --patch win/curses/cursmesg.c
and then searching within the pager. Maybe that's flaky, but if so,
things wouldn't be any less strange.]
The missing line resulted in mesg->turn being uninitialized, so when
^P compared consecutive messages to decide whether they were issued on
the same turn, arbitrary junk made them all seem to be from different
turns so "---" got inserted before every message. I suppose that if
someone uses a malloc that zeroes the memory it hands out, mesg->turn
field would always be 0 and ^P would behave as if all messages were
from the same turn, so not show any "---" separators. Then players
might not be aware that "---" between groups of messages was intended.
[The messages ought to be grouped by move rather than by turn, but
that's something the core would have to provide.]
Have curses call the core get_count() routine instead rolling its
own so that backspace and delete are supported. That part was
trivial to accomplish. Unfortunately it brought the disappearing
menu phenomenon back so it became more complicated overall.
further adjustments to the window port interface to pass a pointer
to a glyph_info struct which describes not just the glyph number
itself, but also the ttychar, the color, the glyphflags, and the
symset index.
This affects two existing window port calls that get passed glyphs
and does the parameter consistently for both of them using the
glyph_info struct pointer:
print_glyph()
add_menu().
The recently added glyphmod parameter is now unnecessary and has been
removed.
groundwork only - window port interface change
This changes the last parameter for add_menu() from a boolean
to an unsigned int, to allow additional itemflags in future
beyond just the "preselected" that the original boolean offered.
There shouldn't be any functionality changes with this groundwork-only
change, and if there are it is unintentional and should be reported.
Typing ^H actually passed a 16-bit value back to the core which got
interpreted as ^G after the extra bits were discarded. I don't think
any previous changes to the curses interface caused this. It's
astonishing that no one ever noticed; the world must be full of numpad
users.
When I implemented getmsghistory()/putmsghistory() for curses I was
assuming that DUMPLOG would only be used with tty, but it is interface
neutral and can be used with curses (or others). So curses message
history needs to behave like tty message history and be sure to pass
along messages that bypass pline() and the normal message window.
(Mainly one-line summaries of long quest messages, but also old
messages fetched from a save file and available to be re-saved without
having been shown if new session doesn't generate enough new messages
to flush them.)
Turns the "fix" in commit 319dcf4746
handled removing the default answer for single-line-prompt plus
multi-line-answer but not for multi-line-prompt plus long-enough-
answer-to-reach-another-line. The logic wasn't quite right and I
misunderstood what is stored in linestarts[] so even correct logic
wouldn't have solved things.
Support user's terminal settings for erase char and for kill char.
Erase char is typically <delete> or <backspace>, both of which are
already explicitly handled so probably no effect there. Kill char
(generally ^U these days) will be honored unless it is a printable
character (don't know whether there are any troglodytes out there
who still use '@' for that...). The current handling for ESC works
the same if there is any input to kill, but yields 'cancelled' when
there isn't.
That's for message window getline(), which operates char-by-char.
The popup getline() uses a curses routine to get an entire string
and already honors kill char but treats ESC as input of ^[.
EDIT_GETLIN is more complicated on curses than on tty due to way that
long lines are handled....
Using ESC to get rid of the default response removed it from the
answer buffer but didn't erase back to the end of actual prompt,
making it look as if it was still there. Fixing that for a one-line
prompt+answer was needed and would have been easy but it also needs to
be prepared to go back to prior lines. Both the prompt and the answer
could conceivably span lines although in practice it will usually just
be one line or else prompt+answer combined spanning to a second line.
This hasn't been exhaustively tested been seems to be working correctly.
After going back and forth between prompts causing message lines
to be overwritten and to be skipped, this yoyo might have finally
run out of string. Fingers crossed....
Fix a 'FIXME': don't follow a message with two spaces in anticipation
of combining with the next one, precede the next one with two spaces
when they're being combined. Keeps nethack's message window <mx,my>
coordinates in sync with curses' internal coordinates.
Back in February, my e991dd1b0c added
ESC (when there's no input) as an early return for curses' getline,
but it neglected to clean up some allocated memory.
Fix a problem introduced by f218e3f15e
and/or a19e64e470. Sometimes the line
after a prompt would be empty and the next message get shown on the
line after that. a19e64e470 was intended to fix the opposite problem
so probably overshot the mark....
Sometimes curses tears down and recreates all its windows (when the
display is resized, for instance) and after doing that it repopulates
the message window with data saved for use by ^P. But it was showing
the oldest messages available rather than the most recent ones.
There is still room for improvement. That process combines short
messages but the refresh is based on the available number of lines;
combining messages can result in lines at the bottom of the message
window being left blank. This could be fixed by reverse-scrolling the
window and inserting more messages at the top, or by combining short
messages in history data instead of at refresh time. The second seems
easier but won't handle changing the message window's width sensibly,
and neither method handles wrapped, long lines well. A More>> prompt
(possibly more than one) is issued if the refresh shows too many lines
(either because long messages already took multiple lines or because
the window has become narrower and ones which used to fit now need to
be wrapped).
Some prompts were being overwritten by the message that followed.
And clear_nhwindow(WIN_MESSAGE) gets called for just about every
keystroke so try to reduce the overhead I unwittingly added. The
"scroll up one line earlier than the next message" mentioned in
the prior commit is much more obvious that I realized and prompt
erasure might need to be redone.
Autodescribe feedback and multi-digit count prompts are always shown
on the last line of the message window and are suppressed from message
history (both ^P and DUMPLOG). When the message window is using all
available lines, the last one was being overwritten (until the count
or the feedback was completed or dismissed, then last line returned).
Adopt the suggestion that it be scrolled up a line instead of being
overwritten. [I haven't been able to reproduce the reported problem
where shorter overlaid text left some of longer underlying text visible
but that should now become moot.]
Bonus fix: while testing, I noticed that if your screen only has room
for a one-line message window and you used ESC to cancel 'pick a spot
with cursor' prompting before moving the cursor, the prompt was left
intact on the message line. tty erases it in that situation, but the
clear_nhwindow(WIN_MESSAGE) was a no-op for curses because it usually
doesn't erase old messages. This changes the curses behavior when the
core asks it to erase the message window: now it forces one blank line
of fake autodesribe feedback (causing the prompt or other most recent
message to scroll off top), then removes that fake feedback (leaving
a blank message line). For multi-line message window, the old messages
scroll up by one line sooner than they would when waiting for the next
real message but are otherwise unaffected.
I've noticed many instances of the game pausing and not being sure why,
then pressing <space> and having it resume. The curses interface had
a tendency to put its equivalent of the --More-- prompt, >>, somewhere
where that wasn't visible, either off the right hand edge (possibly) or
underneath the window borders if those were enabled. Especially the
very last one it issues prior to exit. (An extra one compared to tty
behavior.)
This ended up being a pretty substantial overhaul of message window
handling. I wouldn't be surprised if it has off-by-one errors which
happen to be paired up and cancel each other out. ">>" is still drawn
in orange if guicolor is on, now in inverse video when that is off.
If it happens to be drawn at the same screen location in consecutive
instances, the first ">" will toggle between blink and not blink so
that there'll be no doubt as to whether the keypress registered when
dismissing it (moot if the text preceding it is different but there's
no attempt to be smart enough to check that, just screen placement).
This changes the recently added msg_window:f for curses to start
viewing the old messages on the last page rather than the first. For
msg_window:Reversed (the default for curses) and for either direction
when all of the message history happens to fit on one page, there's
no change. But for multiple pages, the FIFO feedback now pads the top
of the first page with blank lines so that the last page is full, and
it starts out showing that last page first. So if you only want to go
back few or several messages, they will be in view immediately.
Old layout:
|first message (oldest) | |1st message of last page |
|2nd message of 1st page | | ... |
| ... | |final (most recent) mesg |
| ... | | (blank filler) |
|last message of 1st page | | (blank filler) |
| (1 of 2) => | | <= (2 of 2) |
and ^P started with first page visible and needed normal menu handling,
<space> or '>' or '|', to go forward to view the most recent messages.
New layout:
|1st message of last page | | (blank filler) |
|2nd message of last page | | (blank filler) |
| ... | |first message (oldest) |
| ... | | ... |
|final (most recent) | |last message of 1st page |
| <= (2 of 2) | | (1 of 2) => |
and ^P starts on last page (two of two in this example) but can go
back with '<' and '^'.
So if the total size takes one and third pages (which isn't uncommon
for the default number of kept messages), you'll see 3/4 of the most
recent messages on the initial screen, then you can page backward if
you want to see the other 1/4.
The page indicator is deliberately drawn a bit differently just to
draw attention to the fact you're starting on the last page. I'm not
sure whether that is actually worthwhile but it was trivial to do.
The curses interface was using 'moves' as if it meant "moves" rather
than "turns". Typing ESC at >> (curses' terser version of --More--)
prompt would suppress messages for the rest of the current turn rather
than just the rest of the current move. So if the hero got an extra
move due to being Fast, there would be no feedback during that move.
Have the curses interface save and restore message history for use
by ^P. It doesn't spit the saved messages out into the visible
message window after restore; that's too distracting.
The curses interface maintains message history in a doubly linked list
with a capacity limit. Once capacity is reached, the list head is
advanced and the old head discarded, but it was leaving the new head's
'previous element' link pointing at that discarded element.
tmp_mesg = first_mesg->next_mesg;
(at this stage, tmp_mesg->prev_mesg points at first_mesg),
free(first_mesg);
first_mesg = tmp_mesg;
(with necessary 'first_mesg->prev_msg = NULL' missing). The situation
wasn't a significant problem because traversing the list was limited
by a counter. Going from tail back to head exhausted the counter
without ever accessing the stale pointer.
Since it wasn't noticeable, I haven't added a fixes entry for this.
I've also changed it to do fewer memory allocations and frees by
reusing the old list head instead of always allocating a new element
and freeing the one being replaced.
