oprange, show_mission, nameofitem, build_mission_list_type,
unit_map, xdvisible, trdswitchown, ontradingblock, trad, check_trade,
unit_type_name, start_stop_unit, scut, scra, mission, multifire,
perform_mission, fuel, NSC_GENITEM): Replace struct genitem with
struct empobj. Remove genitem.h and create a new file empobj.h.
Replace multiple instances of unions of ef_type structures with
one standard union empobj_storage which is a superset of the individual
instances.
short, to match shp_item and lnd_item.
(mchr_ca, lchr_ca): Replace selector item by selectors for the items.
lchr_ca's item selector was incorrect and worked only by accident.
Add M_CANAL flag to indicate which ships can navigate a canal
in a big city. Remove the hard code values for canal from
shp_nav_one_sector() for which ships can navigate a canal.
Set M_CANAL flag in ship_chr_flags[] to match the hard
coding in shp_nav_one_sector().
Update Ship-types.t with new canal flag.
Update Sector-types.t to indicate that cities have canals.
Useless, remove. Users changed to check mchr's sentinel, because
that's clearer than comparing the index to N_MAXSHIPS or sizeof(mchr)
/ sizeof(*mchr).
(mchr): Change sentinel's m_name to NULL.
Use `short' instead of `unsigned short'. With variables, plague stage
and time were stored unsigned and used signed, which worked. Removal
of variables dropped the conversion to signed, which broke
plague_people() (plague.c rev. 1.6): stage didn't progress correctly
due to catastrophic underflow of time.
I_BAR, I_FOOD, I_OIL, I_LCM, I_HCM, I_UW, I_RAD, I_MAX): Turn macros
into enumeration constants.
(i_type): New. Use where appropriate. No functional changes, except
that I_NONE is now catched properly in a few places.
capacities to straight arrays. Users now subscript the array instead
of calling vl_find() or walking the variable data structure.
(mchr, lchr): Initializers adapted.
(vl_find): No longer used. Remove file.
NUK_BLD_WORK): New, to encapsulate the formula in one place.
(SCT_MINEFF): New. Use it instead of literal 20.
(buil): Use CANT_HAPPEN() for internal error.
(build_ship, build_land, build_bridge, build_nuke, build_plane,
build_tower): Simplify avail calculation.
(lupgr, supgr, pupgr): Charge 15% of total build avail instead of an
undocumented amount computed from build lcm and hcm.
(build_ship, build_land, build_bridge, build_nuke, build_plane,
build_tower, lupgr, supgr, pupgr): Fix reporting of required avail
when there's not enough. Closes#942823.
(lupgr, supgr, pupgr): Code printed cost rounded down, but required
and charged unrounded cost. Confusing. Round cost down, like the
build command. Closes#942811.
(UPGR_COST, UPGR_EFF, lupgr, supgr, pupgr): New UPGR_COST, UPGR_COST replace
literal values.
(show_bridge, show_tower): Don't claim bridge building requires
`workers' (whatever that is), since it doesn't.
item storage. Rationale: Permitted values are 0..M, where M depends
on the container. The largest M is ITEM_MAX (9999). Benign
overflow/underflow occurs at those limits. Catastrophic
overflow/underflow occurs at the limits of the underlying data type.
For `unsigned short', any underflow is catastrophic. For `short',
benign undeflow happens long before catastrophic underflow. Moreover,
unsigned arithmetic tends to trip up unwary programmers.
To save space, the ancients invented `variables': a collection of
key-value pairs, missing means zero value, space for `enough' keys.
This complicates the code, as assigning to a `variable' can fail for
lack of space. Over time, `enough' increased, and for quite some time
now `variables' have been *wasting* space. This changeset replaces
them, except in struct mchrstr, struct lchrstr and struct pchrstr,
where they are read-only, and will be replaced later. It is only a
first step; further cleanup is required. To simplify and minimize
this necessarily huge changeset, the new item[] arrays have an unused
slot 0, and the old variable types V_CIVIL, ... are still defined, but
must have the same values as the item types I_CIVIL, ...
(genitem_ca, ship_ca, plane_ca, land_ca): Remove selector "sell".
(comstr, trdstr): Members trd_price, com_price have no effect. Use
them instead of trd_maxprice, com_maxprice and remove the latter.
(commodity_ca, trade_ca): Remove selector "maxprice".
between headers. Code is now fully prototyped and compiles cleanly
with gcc -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs
-Wredundant-decls. Closes#723788.
thread entrypoints:
(lwpSelect, shutdown_sequence): Parameters didn't match thread entry
point prototype.
(lwpEntryPoint): Arguments didn't match thread entry point prototype.
Change linkage of functions without prototype declaration to static
where possible.
Remove some superflous declarations, replace others by suitable
includes.
