Instead of passing a bare `int` named `secret_flag`, define it as an
`enum class : uint8_t` to name the two special values.
Rework the passing of this value, to deal with some confusing
inconsistencies when reading the code.
Before this change:
In D1:
- Multiplayer will always go to the secret level, regardless of which
exit door the player used.
In D2:
- Flying through a D1 secret exit in multiplayer shows the on-HUD error
"Secret Level Teleporter disabled in multiplayer!", and does not exit
the level. This is at best confusing, and at worst dangerous, since
D1 secret exits are only available during the countdown, so the player
has little time to realize that the normal exit must be used instead.
- Like D1, multiplayer will request to go to the secret level regardless
of the exit used. Unlike D1, the caller ignores the flag and always
advances to the next regular level.
After this change:
- No observable differences for the player in-game. The questionable D2
secret exit handling for D1 is retained.
- The code makes clearer that secret exits do not work in D2
multiplayer, by way of `#if defined(DXX_BUILD_DESCENT_I)` guarding the
existence of the parameter and all updates to it.
All callers except one want the `lite` version of the request. Switch
from a boolean that is selected inside the function to a reference that
is defaulted to `lite`. Override that argument to the heavy version in
the one caller that needs it.
Using `netplayer_info` in `UDP_sequence_packet` defined many unused
fields. Replace this with per-message types that carry only the
required fields. Make these fields `const` where possible.
Some callers create an explosion with damage forced to zero. Others
create an explosion with damage non-zero. Only the non-zero case needs
to examine nearby objects. Split object_create_explosion_sub so that
the zero-damage case can skip that logic, and the arguments required to
implement it.
Remove the definition of FQ_CHECK_OBJS and all uses of it. Add a new
fvi_query member d_level_unique_object_state *LevelUniqueObjectState.
If object checking is enabled, pass &LevelUniqueObjectState in that
member. If object checking is disabled, pass nullptr in that member.
Change fvi_sub to use this member to decide whether to perform object
checking.
If FQ_CHECK_OBJS is used, a valid object is required. Copy the
icobjptridx_t from fvi_query into a local vcobjptridx_t to force a
validation, then use that validated copy for later work.
- Make all members constant, and pass an anonymous temporary fvi_query
to find_vector_intersection.
- Change `p0`/`p1` to `const vms_vector &`, since the positions are
mandatory. Callers can no longer pass `nullptr` or an uninitialized
value here.
- Change `thisobjnum` to `icobjptridx_t`. Calls to fvi_sub built an
objptridx at need, so moving it to the caller allows it to be
constructed once per find_vector_intersection call.
- Move `flags` and `rad` out of fvi_query, since calls to fvi_sub may
use other values than the ones in fvi_query. This prepares for
passing fvi_query to fvi_sub.
Ship wiggle is normally enabled for compatibility with the original
game. However, during development, it can become a nuisance, so add an
option to allow disabling it.
- Inline MAX_FCD_CACHE into the definition of Fcd_cache, then rely on
Fcd_cache.size() later.
- Make Fcd_index unsigned. As an index, a negative number is invalid.
- Change flush_fcd_cache to update Last_fcd_flush_time, rather than
requiring callers to do it. Most callers did not update this.
- Change add_to_fcd_cache to validate and reset Fcd_index before use,
rather than resetting after increment. This allows Fcd_index to
become invalid after a write, but it will be reset to a valid value
before it is used again.
- Fix original game bug in add_to_fcd_cache that caused the cache
expiration path to clear the wrong cache entry.
Embedding it in d_level_shared_robot_info_state is reasonable from a
relational perspective, but interferes with referencing
d_robot_info_array when only a forward declaration of
d_level_shared_robot_info_state is available.
C++20 deprecates `array_name[A,B]`. For this use case, `A` is needed
for its side effects, but is not intended as an index operation. Add
parentheses to satisfy the deprecation warning, without changing the
meaning of the code.
gamedata_read_tbl is only called if (D1 || (D2 && EDITOR)). Exclude
defining it for (D2 && !EDITOR). From there, also exclude defining or
reading the alias list, which is only written by a function
called by gamedata_read_tbl.
Reported-by: heftig <https://github.com/dxx-rebirth/dxx-rebirth/issues/642>
splitpath_t is designed for MS-DOS paths, even though Rebirth now runs
on many platforms that never used DOS conventions. Most of the members
of splitpath_t are unused on all platforms. Remove them, and switch to
returning an initialized version of the structure.
Reported-by: ziplantil <https://github.com/dxx-rebirth/dxx-rebirth/issues/637>
Fixes: 8faed77f5f ("Properly record the event of reset_rear_view() while switching levels to make it work right when rewinding as well; Properly record Countdown seconds for each newdemo frame instead of second change to get display showing up right while playback and still preserving backwards compability; Suspend Game_wind when playing endlevel movie while demo playback")
This loop is run once before the `if()` test, then again at the top of
both the true and false branches of the `if`. Remove the runs inside
the conditional, since they should produce the same result as the run
that occurs before the conditional.
The existing handling always wrote to slot 0, but did so in a convoluted
way. The variable names suggest this was not intended, but no one has
ever reported it as broken, and some otherwise valid data files may
depend on this quirk.
D1 and D2 used logically equivalent code, but it was not the same text,
so the unification project split this with a `#ifdef`. Since the code
does the same thing in both games, combine it into a non-guarded
statement.
