zicodxx reported in issue #449 that savegames created in a new build,
then loaded in an older one, may behave incorrectly in the old build.
This cannot be fixed in the new build without reverting the logic change
which caused it. Support for old builds has always been best effort, so
this will not be fixed. Add a release note about it.
Reported-by: zicodxx <https://github.com/dxx-rebirth/dxx-rebirth/issues/449>
The minimum supported compiler versions now provide a depth-efficient
implementation of std::make_index_sequence, which removes the last
reason to carry a private implementation. In the case of clang, it
appears to have a special compiler intrinsic used to implement its
std::make_index_sequence.
Switch to the compiler-provided version for both gcc and clang.
The new Raspberry Pi 4B revision has a minimum requirement of Raspbian
buster, and uses the Mesa V3D driver by default; in fact, the legacy
Broadcom drivers are no longer compatible with its VideoCore VC6 chip, so
building against Mesa is mandatory for this Pi revision.
Unfortunately, the Debian buster version of the Mesa packages
have intentionally dropped the GLESv1 headers, making building of GLESv1
software impractical (even though the VC4/V3D driver can still run GLESv1
applications).
The OpenGL driver in conjunction with SDL2* runs at full
speed on Raspberry Pi 3B & 4B, so it makes sense to modify the "mesa"
build to this configuration in light of these facts.
* SDL2 is highly desirable due to the availability of the KMSDRM driver, which is
the only way to run dxx-rebirth outside of X (we can no longer use
the dispmanx/rpi driver of SDL1).
Commit e6169f17f9 switched from searching `Data/` to searching
`data/`. For users on case-insensitive filesystems, this is a no-op and
the instructions that reference the `Data` directory continue to work.
For users on case-sensitive filesystems, the change broke accessing the
data directory, and caused the instructions to mislead. Given the age
of the commit, fixing the capitalization now will likely cause more
problems than it solves. Instead, fix the capitalization of the
instructions, so that users who follow the documentation get a working
setup.
Reported-by: krux02 <https://github.com/dxx-rebirth/dxx-rebirth/issues/447>
Fixes: e6169f17f9 ("Add 'Data' subdir as a searchpath, so D2X will find descent.pig and to simplify a lot of file opening/checking/closing code")
Commit dc79bb8e4a intended to clean up processing guidebot messages,
but accidentally allowed the guidebot to report certain status messages
before its cage was opened. Normal missions still do not report these
messages, but some custom levels do.
Reported-by: ziplantil <https://github.com/dxx-rebirth/dxx-rebirth/issues/438>
Fixes: dc79bb8e4a ("Remove hack for bypassing buddy time restriction")
This was requested by a user in early 2018. However, the proposed
prototype was susceptible to various forms of desynchronization, and was
unsuitable for merging. No further revisions were proposed, and the
feature languished. This commit enables the guidebot in cooperative
games and addresses the known synchronization problems, as well as some
other bugs that were uncovered during light testing. This is classified
as an experimental feature because it has not been heavily tested in
complicated games.
Requested-by: cfeuersaenger <https://github.com/dxx-rebirth/dxx-rebirth/issues/364>
Remove use of object_guidebot_cannot_reach and instead track the
reachability of the object as a separate flag. This allows the game to
remember when an object was found, but unreachable. Previously, it
would store only that some unreachable object was found. Now, it stores
the index of the unreachable object. This extra information is not used
yet.
Reported-by: Dainslaif <https://github.com/dxx-rebirth/dxx-rebirth/issues/421>
Fixes: c3cead4319 ("Move Escort_goal_index to d_unique_buddy_state")
Utility xrange, inspired by the Python2 feature of the same name,
provides an object that returns successive values from [start, end). It
is useful when the end index is known in advance, and is particularly
helpful when that index is expensive to recompute.
Fix original bug that buddy was limited to 5 hints per program run, not
5 per boss as it probably should have been.
Due to savegame format limitations, this still is not right. Reloading
the game should restore Buddy_gave_hint_count to its value at save time,
but will not.
When exactly four bytes remain, mvelib will attempt to compute a
past-the-end pointer. Some handlers will dereference this pointer
without rechecking the length. Adjust the header check to require a
non-empty body.
Reported-by: jwrdegoede <https://github.com/dxx-rebirth/dxx-rebirth/issues/413>
