Remote hole, can smash the stack. Additionally, the confirmation
prompt is misleading when the player supplies conditionals. Redesign
the flawed prompt.
Broken when Chainsaw added the confirmation prompt. Reported by Scott
C. Zielinski.
Trade ships are now enabled when a ship type with capability trade
exists. No such type exists by default; to enable trade ships,
deities have to customize table ship-chr.
Before, trade ship types were ignored when option TRADESHIPS was
disabled. Except for xdump ship-chr, which happily dumped unusable
trade ship types.
Why upgrade? I'm not a lawyer, but here's my take on the differences
to version 2:
* Software patents: better protection against abuse of patents to
prevent users from exercising the rights under the GPL. I doubt
we'll get hit with a patent suit, but it's a good move just on
general principles.
* License compatibility: compatible with more free licenses, i.e. can
"steal" more free software for use in Empire. I don't expect to steal
much, but it's nice to have the option.
* Definition of "source code": modernization of some details for today's
networked world, to make it easier to distribute the software. Not
really relevant to us now, as we normally distribute full source code.
* Tivoization: this is about putting GPL-licensed software in hardware,
then make the hardware refuse to run modified software. "Neat" trick
to effectively deny its users their rights under the GPL. Abuse was
"pioneered" by TiVo (popular digital video recorders). GPLv3 forbids
it. Unlikely to become a problem for us.
* Internationalization: more careful wording, to harden the license
outside the US. The lawyers tell us it better be done that way.
* License violations: friendlier way to deal with license violations.
This has come out of past experience enforcing the GPL.
* Additional permissions: Probably not relevant to us.
Also include myself in the list of principal authors.
Replacing getrel(getnatp(US), THEM) by relations_with(US, THEM) makes
a difference only when US equals THEM. Replace in places where it's
obvious that they're not equal.
Note: getsect() sets player->owner to "player is god or owns this
sector". Thus, after getsect(..., §), sect.sct_own ==
player->cnum implies player->owner. Conversely, !player->owner
implies sect.sct_own != player->cnum. Similarly for getship(),
getplane() and nxtitem().
Factor unit_drop_cargo() out of scra(), scuttle_ship(),
scuttle_land(), fix it up:
* Some messages were sent as bulletins instead of printing them.
* Nukes were always destroyed. They're now treated exactly like other
cargo.
* scuttle destroyed some cargo silently, and listed other cargo as
"scuttled". It now simply lets unit_update_cargo() running from
carrier prewrite callbacks list all cargo "lost".
Simplify its callers. scuttle_ship() and scuttle_land() are now
trivial, inline and remove.
You can now scrap ships in own or friendly, efficient harbors, planes
in own or allied, efficient airfields, and land units in any own or
allied sector.
When something can't be scrapped because of these rules, print a
suitable message.
Before, you could scrap ships regardless of relations to sector owner
(info claimed friendly was required), land units regardless of
relations, but not while on ships, and planes even in friendly
airfields (info claimed allied was required).
When scrapping in a deity sector, scrap claimed it gave the cargo to
POGO, which is somewhat bogus, as POGO can't own such stuff.
scra() and scut() printed their "scrapped in" / "scuttled in" message
in two parts. Messages for scrapped / scuttled cargo were printed
between the parts. Fix by printing in one go, after the cargo
messages.
Change snxtitem_all() loops that skip everything but a carrier's cargo
to use snxtitem_cargo() in scra(), scuttle_ship(), scuttle_land(),
takeover_ship(), takeover_land(), trade_desc(), feed_ship().
Losses of sectors, ships, planes, land units and nukes are tracked in
the lost file. To keep it current, makelost() and makenotlost() were
called whenever one of these changed owners. Cumbersome and
error-prone. In fact, the lost file was never perfectly accurate.
Detect the ownership change in the prewrite callback and call
makelost() / makenotlost() from there. Remove lost file updates from
where they're no longer needed: right before a put. takeover() is a
bit more involved: it doesn't put the sectors, but all callers do,
except for guerrilla(). So remove the lost file update from
takeover(), but add it to guerrilla().
This takes care of lost file update for all ownership changes that go
through ef_write(). It can't take care of any missing updates for
changes that don't go through it.
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.
other. Ensure headers in include/ can be included in any order
(except for econfig-spec.h, which is special). New header types.h to
help avoid inclusion cycles. Sort include directives. Remove some
superflous includes.
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.
(launch_sat, scra, scut, scuttle_ship, scuttle_land, knockdown)
(ac_planedamage, detonate, attack_val, defense_val, air_damage)
(msl_intercept, msl_launch_mindam, pln_prewrite, shp_prewrite):
Simplify unit destruction: just zero efficiency, leave makelost()
etc. to the prewrite callback.
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.
getvec(). This is safe, because the old code made single copies and
always flushed them back into the unit structures before flushing
those. To do: obey ITEM_MAX.
effect. Replace calls by struct assignment where possible. Replace
clear buffer, copy string to buffer by strncpy(). Use assignment to
clear when that's clearer. Replace overlapping copy through bounce
buffer by memmove(). Replace rest by standard memset() and memcpy().
Also use sizeof() instead of literal array sizes for robustness, and
instead of symbolic array sizes for clarity.
