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Save the next pointer in the P_RunThinkers() loop when iterating through
thinkers, so that if the current thinker is freed we can still advance
to the next thinker without dereferencing freed memory.
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This file is empty and contains no code, as it was factored out into
the common m_misc.c during raven-branch development. The Heretic
version got removed once it was empty but the Hexen one wasn't, for
some reason.
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Add support for the Hexen 4 Level Demo Version
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... and decrease its value from MAXPLAYERS (i.e. 8) to 4 if
(gamemode == shareware). It seems that it was hard-coded to this value
until some time between the releases of the Demo and the Full version.
Arrays are still declared with their full width of 8, though, they are
just not iterated over the whole range anymore. This fixes playback of
the IWAD demos.
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These are leftover files that were kept around for posterity in the
heretic/ and hexen/ directories, that contained system-specific DOS
code used in the DOS versions of the games. There's no real reason
to keep these files around any more and it's confusing having them
around: some people who have tried to compile the code have
mistakenly tried to include these files in compilation.
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into hexndemo
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instead of interating through the list for the full version
and letting missing texture lumps slip through.
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For bug compatibility with the original 4-level Demo. Confirmed on
map04 with the Demo version with the following md5sums:
458d3ff08d32fc50abb55a5b68660b6b HEXEN.EXE
876a5a44c7b68f04b3bb9bc7a5bd69d6 HEXEN.WAD
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The config file API previously relied on binding config variables
using M_BindVariable() which took a void pointer. It occurred to me
that if used on a boolean variable, this would be erroneous, but the
void pointer would make it impossible to tell. Split this into
separate M_Bind{Foo}Variable() functions based on type, which allows
for proper type checking on the pointers that are passed.
Vaguely related to #509.
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Various bits of code assume that booleans are represented as 32-bit
ints and that they can be assigned to from 32-bit values. This isn't
true on all systems; fix code that does this to convert to boolean
values properly.
This is more progress towards fixing #509.
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Following the concept of Chocolate Doom, D_IdentifyVersion and
D_SetGameDescription are introduced and called right after loading the
IWAD. The first one checks for the characteristics of the "shareware"
IWAD and sets gamemode accordingly, whereas the latter sets the
gamedescription string according to gamemode. This string is then used
in I_PrintStartupBanner() and I_SetWindowTitle(). So, the "shareware"
version identifies itself properly now.
I consider support for the 4 Level Hexen Demo pretty complete by now.
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into hexndemo
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With these changes it is possible to run the game using the HEXEN.WAD
IWAD from the 4-level Demo and start a new game as one of the three
player classes.
Known missing bits:
- The game does not yet identify itself as the demo version
- The cheat codes are still unchanged
- Bug compatibility, see e.g.
http://dengine.net/dew/index.php?title=Libhexen
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Ensure that the loops to find the next weapon always terminate -
even if there are somehow no weapons equipped. Also, only ever do
weapon cycling when in the GS_LEVEL gamestate. This fixes #503 -
thanks to Fabian and raithe on Doomworld.
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as pointed out necessary by Ronald Lasmanowicz for his Wii ports
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when walking inside liquids like water -- on big-endian systems
Originally reported by Ronald Lasmanowicz and fixed in his
wii-hexen port: https://code.google.com/p/wii-hexen/source/detail?r=17
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Scripts can have a maximum of three arguments when started
(see ACS_Execute / #80 linedef special type). This means that the
array of arguments passed must be at least three elements in
length. When loading scripts, check the argument count never
exceeds 3, and print a warning message if it does.
Don't pass pointers to structure members implicitly treating them
as elements of an array (as this relies on compiler-dependent
behavior as to how structure members are laid out). Instead, copy
values into a temporary array to make the intended behavior explicit.
This fixes #477. Thanks to Quasar for reporting it.
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The minotaur uses the first four bytes of the mobj_t args[] array to
store its spawn time; after a certain amount of time has passed the
minotaur self-destructs. But the level time was being copied from the
leveltime variable without any endian conversion taking place. For
compatibility with Vanilla Hexen savegames we need to store the start
time in little endian format.
This fixes the first issue noted in #477 (thanks Quasar).
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The size parameter for the destination buffer used for this string
copy was one character too short, the result being that patch lump
names using the maximum length (8 characters) were having the last
character cropped off. This in turn caused problems with custom
WADs that added new textures with names like these: the game would
exit on startup with a message like:
R_InitTextures: Missing patch in texture SKY3GOLD
Amazingly this bug was not noticed because most of the patches in
the Hexen IWAD file have short names of 7 characters or less. The
only exception I noticed was SKYWALL2 which maps to SKYWALL,
another patch, hiding the bug.
Thanks to ETTiNGRiNDER for reporting this bug to me and for
providing me with a private copy of his in-development PWAD that I
could use to find the problem.
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The Mac version of hexen.wad is slightly different from the normal
DOS one: it contains a bunch of extra lumps but more importantly,
the GENMIDI and DMXGUS lumps are missing. This means that Chocolate
Hexen would crash on startup with the default settings (as OPL is
the default music output).
To work around this problem and allow the game to start up properly,
detect if the required lump is missing and adjust the music settings,
printing a helpful message to stdout to inform the user.
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Official release of Hexen's source code relies on unspecified behavior the in order of function's argument evaluation, see ISO-IEC 9899-1999, [6.5.2.2.10]
P_Random() are called in different parameters of P_SpawnMobj() within A_LeafSpawn()
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This change rewrites and simplifies the copyright headers at the top
of all source files:
* Remove "Emacs style mode select" line; this line was included in
the headers for the originally released source files and appears
to be to set the file type for old versions of Emacs. I'm not sure
entirely why it was required but I don't think it is any more.
* Remove "You should have received a copy of..." text from copyright
header. This refers to the old 59 Temple Place address where the
FSF headquarters used to be located and is no longer correct.
Rather than change to the new address, just remove the paragraph
as it is superfluous anyway. This fixes #311.
* Remove ---- separator lines so that the file headers are barer
and more simplified.
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Hexen was missing the code to handle the strafe left/right buttons.
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ZDoom has defined a format for Vorbis metadata comments named
LOOP_START and LOOP_END that allow the start and end points to be
defined in .ogg and .flac files for looping music. Add support for
these (they are used in Brandon Blume's SC-55 recordings).
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Having multiple binaries can cause some confusion - some users try to
run chocolate-doom with hexen.wad, thinking it is supported. Add a
startup check that makes sure the user is not trying to start the game
using the wrong IWAD file for the binary being run.
This fixes #382.
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When using a joystick or gamepad it's nice to be able to bring up the
menu without having to reach for the keyboard. This makes modern
gamepads more useful/usable.
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Modern gamepads typically have 2-3 D-pads and joysticks. This means
that it's desirable to be able to use one joystick for turning and
another for strafing. Add another axis in addition to the current X
and y axes that performs strafe movement.
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The Windows API has an _snprintf function that is not the same as
Unix's snprintf(): if the string is truncated then no trailing NUL
character is appended. This makes the function unsafe. Define a
replacement/wrapper called M_snprintf that works the same but always
appends a trailing NUL, for safety on Windows and other OSes that
behave like this.
Do the same thing for vsnprintf(), and update HACKING to list
snprintf/vsnprintf as forbidden functions. This fixes #375;
thanks to Quasar for pointing out the different behavior of these
functions.
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Use snprintf() in place of sprintf(). This is part of fixing #371.
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Vanilla Hexen makes you specify the demo name to play by giving
the plain lump name, eg. heretic -playdemo mydemo to load mydemo.lmp.
It doesn't work if you specify the extension or the full file path.
As a convenience and to match the behavior of Chocolate Doom, allow
paths and extensions.
Also rework the code for other games so that they're slightly more
consistent. This fixes #301.
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Where a pointer is to a buffer that does not need to be mutable for
the operation of the function, use const char * instead. This avoids
some type errors where constant string are passed.
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Eliminate use of strcpy, strcat, strncpy, and use the new safe
alternatives.
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Vanilla Hexen allows the game startup to be aborted by pressing the
escape key. This can also be used to abort netgame startup. Add back
this functionality by polling the SDL event loop; this feature only
works if the graphical startup is enabled, but that's good enough.
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Initialize low-level sound startup (calls to I_InitSound) separately
from the high-level sound startup (S_Init). In particular, make sure
that SDL sound is initialized before the textscreen multiplayer
waiting screen is shown. This is an attempt to fix a bug with sound in
multiplayer games on Windows; calling SDL_QuitSubSystem(SDL_INIT_VIDEO)
(on closedown of the textscreen library) causes subsequent attempts to
initialize audio to fail.
Big thanks go to Alexandre-Xavier (AXDOOMER) for working out a fix for
this bug and James Haley (Quasar) for giving some technical background
about the lack of separation between SDL subsystems. This (hopefully)
fixes #270.
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In #364 I recommended -1 as the default to avoid taking screenshots in
some situations where a key event is posted for key 0. It turns out
that wasn't such a great idea, as -1 is not parsed properly by the
config parser, and is shown as ??-1 in the setup tool. Default to zero
instead, and add guards to prevent screenshots being taken by mistake.
Thanks to Alexandre-Xavier for pointing this out.
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The -timedemo flag is broken in Vanilla Heretic/Hexen, as not all
fields are read from the demo headers. Fix it, as there's no utility
in having it nonfunctional and plenty of utility in having it
functional. This fixes #300.
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There was a bug where it was possible to keep moving the background
when the boundaries of the map were reached. This is because the code
to move the background was done in calls to AM_Drawer(), which is
fundamentally a bad idea. Some old commented-out code shows that this
was previously done in AM_Drawer (same location that scrolls the map
itself), but it was moved. Move it back.
Thanks to Chris Fielder for the bug report; this fixes #321.
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Heretic and Hexen had the pause key hard-coded to KEY_PAUSE when they
should actually use key_pause so that they can be remapped by the
user. Thanks to Fabian Greffrath for the bug report (fixes #337).
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