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.
Two tests in series examined the object for a type of OBJ_ROBOT. Fold
the test together.
The next test also examines ->type. Move that to an else since it
cannot be true if the first test was true.
The segment list is written to `hit_data`, but `hit_data` goes out of
scope before the segment list is read back. Skip collecting it, since
it was effectively write-only on this path.
Commit 1a9fba804d made an incorrect simplification. It observed that
thief robots are not boss robots and vice versa, and from that changed:
```
if (is_thief) { drop_stolen_items(); }
if (is_boss) { start_boss_death_sequence(); }
else if (death_roll) { start_robot_death_sequence(); }
else { regular_death(); }
```
to
```
if (is_thief) { drop_stolen_items(); }
else if (is_boss) { start_boss_death_sequence(); }
else if (death_roll) { start_robot_death_sequence(); }
else { regular_death(); }
```
This was incorrect, because although a thief is not a boss, a thief does
need to proceed through the other non-boss if tests. This error caused
a thief not to explode on death, and instead continue to fly around and
absorb weapon fire.
Fix the logic error by removing the incorrect `else`, so that a thief
can be tested for is_boss, get false, and then proceed through the
non-boss death logic.
Fixes: 1a9fba804d ("Avoid repeated valptridx dereferences in multibot.cpp")
gcc-12 warns that the snprintf to initialize `tempname` may be
truncated. The variable is never used after it is initialized, so
delete the initialization and declaration.
Players are not robots, but the show-path cheat tried to pretend they
are, and triggered a BUG warning[1] when looking up robot information
from the player object. Fix this by passing in the robot_info when the
caller is providing a robot, and a named `nullptr` value (as
`create_path_unused_robot_info`) when the caller is providing a
non-robot object.
[1] As below, but repeated many times
```
similar/main/ai.cpp:1905: BUG: object 0x555555858550 has type 4, expected 2
similar/main/ai.cpp:1974: BUG: object 0x555555858550 has type 4, expected 2
```
Zero the entire array, rather than adjusting the loop to account for the
count of segments in the level. The array may not need to be zeroed at
all, but this is cheap and guarantees consistent results.
Use `object &` instead of `vmobjptr_t`. This should generate equivalent
code, but produce smaller debug information and may require less
inlining by the compiler.
Every caller passes `1`, so remove the parameter and always use `1`.
For backward compatibility with the previous network protocol, continue
to send a `1` in the network message.
- Write a more specific message on failure
- Defer writing a success message until `spit_powerup` succeeds
- Defer the sound too
- Rewrite the success message to tell how much ammo remains
Commit 8c8b7419b6 defined Shift-F5 and Shift-F6 to adjust the VR
handling. However, Shift-F5 and Shift-F6 already had a meaning: drop
primary weapon / drop secondary weapon. The ordering of the logic
causes the new VR handling to suppress the old drop handling, thus
preventing players from dropping weapons. Disable the VR meaning for
these keys so that drop-weapon works again, since F1 documents those
keys as drop-weapon.
Fixes: 8c8b7419b6 ("Improved conditionals for stereo vs non-stereo modes.")
v29_trigger and v30_trigger define a field `time`. v29_trigger never
initializes it. v30_trigger initializes it from the uninitialized
v29_trigger in legacy mode, and from a file field otherwise. No program
logic ever reads this member, so remove it.
Commit 7f2df64649 converted `mission_menu` to inherit from `listbox`,
but introduced an off-by-one bug in the handling of subdirectories.
`listbox` must be told how many strings it is given. Subdirectories
have one extra string, to represent the `listbox_go_up` element. The
count passed to `listbox` incorrectly failed to adjust for the generated
go-up element, causing listbox not to show the last string in the list.
Change the logic to adjust the count to include the extra element.
Fixes: 7f2df64649 ("Make mission_menu inherit from listbox")
Reported-by: AlumiuN <https://github.com/dxx-rebirth/dxx-rebirth/issues/629>
The contents of the output buffer are undefined if PHYSFSX_getRealPath
fails, so mark the function as [[nodiscard]] and modify all callers to
check that the function succeeded.
openable_door_on_near_path should return 0 for no door and any non-zero
value for door-found. Commit 9fdf6005df changed the logic to return 0
for no door, and the side number value for door-found. This is wrong,
since WLEFT has integer value 0, so the caller will interpret a return
of door-found, side=WLEFT as no-door-found.
Fixes: 9fdf6005df ("Convert ai_static::GOALSIDE to sidenum_t")
If two or more events are delivered in the same loop, the previous
implementation would count joystick motion multiple times. Fix this by
moving the joystick interpretation to occur once, after all the events
have been processed.
Lists of these objects are unrolled by a template parameter pack
regardless of whether they are type compatible, so keeping the types
compatible does not improve code size. Store more precise types in the
structure, and avoid needing to store the constant values into a
structure at runtime.
- Use std::integral_constant instead of a static function that returns
the value
- Remove unused protocol_family
- Replace the enum with a typedef for the one type that the enum was
used to define
If exactly one object will always be needed, use an overload that
returns the object id. Otherwise, use an overload that only returns
whether at least one object was created. This simplifies callers that
always request exactly one object.
If at least two robots would be dropped, and a drop failed, then
object_create_robot_egg would report failure to the caller. Callers
that check the return code treat any failure as total failure, but that
is not guaranteed to be true. If the game successfully dropped one
robot and failed when dropping a second, then the caller would receive a
status of failure.
Fix this by returning a status of whether at least one object was
created.
- Change D1X to use D2X rules regarding Vulcan cannon pickup. The D1X
rules were confusing at best, and seem outright wrong in some ways.
- When a Vulcan cannon was picked up, it was treated as containing not
less than VULCAN_WEAPON_AMMO_AMOUNT rounds, regardless of what it
actually contained. D2X respected the actual contained count, even
when running in D1X emulation mode.
- In D1X single player, if the Vulcan cannon was not picked up, then
it could be treated as Vulcan ammo. If at least 1 unit of
ammunition was added to the player, the entire powerup would be
consumed, regardless of how much ammunition remained.
- In D2X single player, if the Vulcan cannon was not picked up, then
ammunition would be taken from it, but the powerup would only be
consumed if all its ammunition was taken.
- In D1X multiplayer, a player who already had a Vulcan cannon could
not get anything from touching a new cannon, and the cannon would
not be changed.
- In D2X multiplayer, a player who already had a Vulcan cannon could
take ammunition from the cannon, but the cannon could not be drained
below VULCAN_AMMO_AMOUNT. If the cannon had VULCAN_AMMO_AMOUNT or
less, then the player could not take ammunition. If the cannon had
more, the player could drain it to that level.
- Replace all that with a simplified version of the D2X rules:
- If the player does not have the cannon, the cannon is picked up
and removed from the mine. The player takes as much of its
ammunition as possible. If the cannon was well stocked, and the
player was nearly full, some ammunition will be lost. This is
unfortunate, but the game has always had this rule, and changing
it would require dropping one or more Vulcan Ammo packs to
represent the untaken ammunition.
- If the player already had that cannon, then the player takes as
much ammunition as the cannon has, while not exceeding the
ammunition cap. Other players, if any, are updated about how much
ammunition remains in the cannon. The cannon remains in the mine.
- Backport to D1X the network message for updating the contained
ammunition in a vulcan cannon. zico added the basic feature in
7684ce92, but only applied it to D2X. With the change to let D1X
multiplayer take ammunition from the cannon, D1X now needs the same
feature.
- Remove the special case to delete an empty cannon. Instead, let the
cannon remain in the mine without ammunition. This allows a player in
single player mode to leave behind a backup cannon, which could be
useful if the player is killed and wishes to rearm before returning to
the death site. Similarly, under the new rule that players in
multiplayer can drain the cannon down to 0 ammunition, this removal
allows the cannon to remain behind for someone else to take, rather
than allowing it to be deleted by a player who already had an instance
of it.
Instead of creating the powerup from a player, then overwriting the
location and velocity of the powerup, and fixing up its segment, create
the powerup directly where it should be, with the intended velocity.
Add periodic calls to send_endlevel_packet in kmatrix if
Control_center_destroyed is false.
Needed because after finishing the last level, kmatrix is called from a
different place where Control_center_destroyed is already false.
It looks like this issue was introduced in Rebirth 0.56 with the
split off of the ipx code (febe5d1). That commit removes the call to
multi_endlevel_poll2 from kmatrix_view, which did the same periodic
sends. (Maybe because in D1 Control_center_destroyed was always true
in kmatrix so it was not needed there.)
Reported-by: snytek <#520>
Fixes: febe5d1 ("Abstracting networking protocols")
clang-13 fails to sufficiently inline this construct, causing it to emit
an unnecessary call to check_null_pointer_conversion on a path where
m_ptr is already guaranteed to be non-nullptr. That call in turn
causes a linker error, since no other site using valptridx<wall> needs
check_null_pointer_conversion instantiated. Rather than provide the
instantiation, rework the logic to avoid the need for the dead call.
Instead of creating the powerup from a player, then overwriting the
location and velocity of the powerup, and fixing up its segment, create
the powerup directly where it should be, with the intended velocity.
Iterating over it returns each side number in turn. This allows
converting many loops of the form:
```
for (int i = 0; i < MAX_SIDES_PER_SEGMENT; ++i)
```
to the compact form:
```
for (const auto i : MAX_SIDES_PER_SEGMENT)
```
The compact form brings the usual benefit of range-based for: delegating
iteration to the compiler prevents the loop body from skipping a step,
and makes clear in the code that this is the case.
Some flags merit a type other than int8_t. Begin moving flags out to
distinct variables with their own type.
Add static_assert checks that the ABI relevant structures do not change.
A level can have a secret exit without having a mission entry describing
where to go when the secret exit is used. Switch from an assertion
failure in that case to a log message.
clang treats names introduced by structured bindings specially, and
refuses to capture them for a lambda, even when it should be capturing
an rvalue reference. gcc accepts this capture.
Switch to initializing a lambda local variable from the structured
binding in the outer scope, which works with both compilers.
Reported-by: Kreeblah <https://github.com/dxx-rebirth/dxx-rebirth/issues/609>
Remove the workaround added for issue #289 [1]. That issue covered a
miscompilation by early versions of gcc-4.9. gcc-4.9.x is no longer
supported, so the workaround is no longer needed.
[1]: https://github.com/dxx-rebirth/dxx-rebirth/issues/289
Change it from the level number on which the path was created to a
true/false flag. The previous logic only tested whether the number was
equal to the current level number.
This also fixes a bug where the action was not available on the first
secret level, since that level is `-1`, and the value was set to `-1` to
indicate that it should be enabled.
cockpit_decode_alpha::deccpt has static scope and is retained to support
the data in WinBoxOverlay. Change WinBoxOverlay into a structure that
stores deccpt (and rename it to the more descriptive
`decoded_full_cockpit_image`) to keep the pieces together.
