move_ground() passes curx, cury to various functions that should
probably be called with normalized coordinate arguments. Make sure
curx, cury are normalized.
Sub-command 'm' calls display_region_map() to display a map. The map
is centered on the current sector by default. It extended one sector
farther to the right and down than to the left and up. Odd, and
inconsistent with the map size used by unit_map() for navigate and
march sub-command 'M'. Fix that.
Change struct range from exclusive to inclusive upper bounds, for
consistency with struct realmstr and the area syntax. Also fix many
bugs.
real()'s conversion from struct range's exclusive upper bounds to
struct realmstr's inclusive upper bounds could underflow and store -1
in the realms file. Harmless, because its users didn't mind:
list_realm() and nstr_exec_val() convert back to relative coordinates,
and sarg_getrange() is only used by sarg_area(), which happened to
undo the damage. The change to inclusive upper bounds gets rid of the
broken conversion.
xyinrange() incorrectly treated the upper bound as inclusive, unless
the bounds were equal. Impact:
* nxtitem() and nxtitemp() cases NS_AREA and NS_DIST attempted to hack
around xyinrange()'s lossage(!), but screwed up: sectors on the
lower bound of of a range spanning the the whole world were skipped.
This affected all command arguments that support area or distance
syntax for items. In sufficiently small worlds, it could also make
radar miss satellites and ships, sonar miss ships, satellite miss
ships and land units, nuclear detonations miss ships, planes, land
units and nukes, automatic supply miss ship and land unit supply
sources, ships and land units fail to return fire, ships fail to
fire support.
* draw_map() could draw units sitting just right or just below of the
mapped area. No effect, as these parts of the map weren't actually
shown.
xydist_range() produced an inclusive upper bound when it decided that
the range covers everything in that dimension (which it didn't get
quite right either). This could make snxtsct_dist() and
snxtitem_dist() initialize the iterator with an incorrect upper bound.
Similar impact as the xyinrange() / nxtitem() lossage.
border() could print the hundreds line unnecessarily.
snxtsct() and snxtsct_all() screwed up for odd WORLD_Y: they failed to
include (WORLD_Y - 1) / 2 in the y-range. This affected all command
arguments that support "*" syntax for sectors, plus add ... c, power
n, and break.
snxtsct_all() failed to normalize the bounds (presumed harmless).
There were a few correct, but somewhat unclean uses of struct range
with inclusive upper bounds:
* nat_reset() used one internally.
* pathrange() worked with inclusive upper bounds internally, but
corrected to exclusive upper bounds before passing the range out.
* sarg_getrange() worked with inclusive upper bounds. Its only caller
sarg_area() corrected that to exclusive upper bounds.
The change to inclusive upper bounds cleans this up.
unit_map() and xysize_range() had no issues (isn't that amazing?), but
need to be updated for the changed struct range semantics.
snxtsct_area() computed width and height, overwriting the values
passed in, even though all but two callers passed correct values. The
exceptions were snxtsct() in case NS_ALL, and snxtsct_all(). Change
them to pass correct values, and drop the recomputation from
snxtsct_area(). Simplifies the interface between snxtsct_area() and
its callers.
The correct method to compute indexes into a map buffer for a struct
range is deltx(), delty().
path() used deltax(), deltay() instead, which yield correct results
only for indexes up to half the world size. Pathes spanning larger
areas were screwed up.
sona(), radmap2(), satmap() also used deltax(), deltay(), but only
with arguments where those yield correct results.
draw_map() used xnorm(), ynorm() instead, which is correct, but less
clear and less efficient.
Change planesatxy() not to list embarked planes, plane_bomb() not to
bomb them, and land_bomb() not to bomb embarked land units.
Curiously, embarked land units were not listed as targets before, but
could be bombed all the same.
4.0.17 made missiles that miss their target do collateral damage to
the target sector. The code didn't work: it did collateral damage
even when the launch failed or the missile got intercepted. 4.0.18
disabled it again for the launch command (see also commit fa7e3aa9).
Disable it for automatically launched missiles, too, in
msl_launch_mindam().
This is the human-readable buddy of xdump product, which dumps pchr[].
It duplicates much of the information in show sect c, but in more
accessible form. It's in show_product().
Remove product information from info Quick-ref. show reflects the
actual game, is more complete, and should be just as readable.
show_sect_stats() used to show packing bonuses for military,
uncompensated workers, civilians, bars and lcms. The bonus for lcms
was labelled "other", which was okay only as long as all other
commodities receive the same packing bonuses.
Show packing bonus type instead. The actual bonus for each commodity
and packing type is already shown by show item. But change its header
for the NPKG column from "rg" to "no", because packing type NPKG is
shown by show se s as "normal".
show_sect_build() showed only sectors with unusual build
characteristics. Which begged the question what the usual build
characteristics are. Add a line to show them.
The old code used getstarg() to get an argument with a different
prompt than snxtitem() uses, then passed the value to snxtitem()
unchecked. If the player aborts, getstarg() returns a null pointer,
and snxtitem() prompts again. Affected:
* load/lload plane/land third argument; load_plane_ship(),
load_land_ship(), load_plane_land(), load_land_land()
* bomb, drop, fly, paradrop, recon and sweep second argument;
get_planes()
* tend and ltend second and fourth argument; ltend(), tend(),
tend_land()
* mission second argument; mission()
Fix by making snxtitem() taking a prompt argument, null pointer
requests the old prompt.
Use that to simplify multifire() and torp(). Change the other callers
to pass NULL.
This affects commands bomb, drop, fly, paradrop, recon and sweep.
The failure to abort was harmless, because all callers get additional
arguments, and abort then.
The old code didn't honor command abortion at the following prompts:
* arm third argument
* deliver fourth argument (also simplify)
* fire third argument
* fly and recon prompt for carrier to land on: pln_onewaymission()
treated abort like empty input, which made planes attempt landing in
the sector.
* lmine second argument
* order d fourth argument
* power c nat(s) argument
* range second argument
* sail second argument
* shutdown both arguments (first one was broken in commit 84cfd670,
v4.3.10, second one never worked).
* tend third argument
Commit 7ca4f412 (v4.3.12) marked planes flying a sortie with
PLN_LAUNCHED, and made pln_arm() reject planes with that flag set.
This was designed to reject escorts that were already flying as
bombers. It didn't work, because the test for PLN_LAUNCHED used a
stale copy of the plane created by pln_sel(). Fix by getting a fresh
copy.
The bug always existed, but the botched fix in commit 7ca4f412 made it
worse. Before, ac_encounter() dropped escorts that were also bombers,
so the bug merely wasted plane fuel. After, such planes were
effectively duplicated, and damage to one of them, usually the bomber,
was wiped out. Abusable.
The code wrote the swept sector after calling shp_check_one_mines().
This failed to use up the mine that hit the minesweeper, and triggered
a seqno mismatch oops.
The code wrote the minesweeper after calling shp_check_one_mines().
This used freed memory when the minesweeper got sunk there.
Broken in 4.0.17. Fix by moving both calls before
shp_check_one_mines().
ask_olist() let non-light land units board ships that can carry only
light units. If the board succeeds, the non-light unit move onto the
ship and then are stuck there.
The values in these columns were computed by count_sect_units() and
count_sect_planes(), which included land units and planes in the count
that aren't shown by prunits() and prplanes(), namely own and embarked
units. Confusing. Moreover, count_sect_planes() and prunits() rolled
dice separately for spy units. This could leak the presence of spies
even when prunits() didn't show them.
All fixable, but not worth the trouble; just remove the counts.
perform_mission() needs to know whether it is targeting ships or
something else, because the rules differ: submarines interdict only
ships, land units get their damage reduced when interdicting ships,
and different news are generated.
The old code assumed it was targeting ships when the target sector was
sea. Wrong when interdicting ships in harbors, bridges and such.
This has always been broken. Except when checking a submarine's
target: there it tested argument s, which is gross, but at least it
works. That code was added in v4.0.8.
Replace the broken test by the gross hack everywhere. This fixes news
and damage from land units when ships get interdicted in non-sea
sectors.
Firing damage reduction for range is a feature that was always there
and never really documented. Different ways to fire reduced damage
differently for range, or not at all. Fix that by dropping the
reduction everywhere.
The reduction happened randomly, with probability p = (d/m)^2, where d
is the distance to the target, and m is the maximum firing range. The
fire command printed "Wind deflects shells" when it happened.
The old fire command (before MULTIFIRE) either halved damage (50%
chance), or reduced it by a factor of 1-p.
MULTIFIRE's fire command halved damage. v4.0.2 reduced that loss to
10-20%.
Interdiction halved damage, but only when firing from ships.
Other ways to fire (support, return fire, interdiction from forts and
land units) did not reduce damage for range.
Commit 092a52f2 (v4.3.4) removed the code to estimate defense, because
the use of the estimate had been disabled since v4.0.0. This
accidentally removed the reporting of defending units, because
get_dlist() reported them when called for an estimate, and not when
called for real.
Fix by removing the unused estimate capability from get_dlist(). It
now reports defending units always.
Before s_commod() attempts to recursively supply a supply unit it
wants to use as supply source, it zaps the unit's load. When
actually_doit is false, it later restores the old load by overwriting
the change with a saved copy of the unit. That triggers a seqno
mismatch oops.
Avoid that by copying the new sequence number to the saved copy.
