so that all files are included by a central one instead of compiling
each one separately. This speeds up the compilation process by 25%
when doing a complete rebuild in Visual C.
- Cleaned up more header dependencies.
SVN r1226 (trunk)
- Added functions to FActorInfo that can set the damage factors and
pain chances to reduce the chance of new errors when working with
these features.
- Fixed: The handling of the deprecated FIRERESIST flag didn't work.
There were 3 problems:
* Actor defaults have no class information so HandleDeprecatedFlags
needs to be passed a pointer to the ActorInfo.
* The DamageFactors list is only created when needed so the code needs to
check if it already exists.
* damage factors are stored as fixed_t but this set a float.
- Added a traditional Strife color set for the automap.
SVN r1183 (trunk)
registers AMD64 provides, this routine still needs to be written as self-
modifying code for maximum performance. The additional registers do allow
for further optimization over the x86 version by allowing all four pixels
to be in flight at the same time. The end result is that AMD64 ASM is about
2.18 times faster than AMD64 C and about 1.06 times faster than x86 ASM.
(For further comparison, AMD64 C and x86 C are practically the same for
this function.) Should I port any more assembly to AMD64, mvlineasm4 is the
most likely candidate, but it's not used enough at this point to bother.
Also, this may or may not work with Linux at the moment, since it doesn't
have the eh_handler metadata. Win64 is easier, since I just need to
structure the function prologue and epilogue properly and use some
assembler directives/macros to automatically generate the metadata. And
that brings up another point: You need YASM to assemble the AMD64 code,
because NASM doesn't support the Win64 metadata directives.
- Added an SSE version of DoBlending. This is strictly C intrinsics.
VC++ still throws around unneccessary register moves. GCC seems to be
pretty close to optimal, requiring only about 2 cycles/color. They're
both faster than my hand-written MMX routine, so I don't need to feel
bad about not hand-optimizing this for x64 builds.
- Removed an extra instruction from DoBlending_MMX, transposed two
instructions, and unrolled it once, shaving off about 80 cycles from the
time required to blend 256 palette entries. Why? Because I tried writing
a C version of the routine using compiler intrinsics and was appalled by
all the extra movq's VC++ added to the code. GCC was better, but still
generated extra instructions. I only wanted a C version because I can't
use inline assembly with VC++'s x64 compiler, and x64 assembly is a bit
of a pain. (It's a pain because Linux and Windows have different calling
conventions, and you need to maintain extra metadata for functions.) So,
the assembly version stays and the C version stays out.
- Removed all the pixel doubling r_detail modes, since the one platform they
were intended to assist (486) actually sees very little benefit from them.
- Rewrote CheckMMX in C and renamed it to CheckCPU.
- Fixed: CPUID function 0x80000005 is specified to return detailed L1 cache
only for AMD processors, so we must not use it on other architectures, or
we end up overwriting the L1 cache line size with 0 or some other number
we don't actually understand.
SVN r1134 (trunk)
surprised if this doesn't build in Linux right now. The CMakeLists.txt
were checked with MinGW and NMake, but how they fair under Linux is an
unknown to me at this time.
- Converted most sprintf (and all wsprintf) calls to either mysnprintf or
FStrings, depending on the situation.
- Changed the strings in the wbstartstruct to be FStrings.
- Changed myvsnprintf() to output nothing if count is greater than INT_MAX.
This is so that I can use a series of mysnprintf() calls and advance the
pointer for each one. Once the pointer goes beyond the end of the buffer,
the count will go negative, but since it's an unsigned type it will be
seen as excessively huge instead. This should not be a problem, as there's
no reason for ZDoom to be using text buffers larger than 2 GB anywhere.
- Ripped out the disabled bit from FGameConfigFile::MigrateOldConfig().
- Changed CalcMapName() to return an FString instead of a pointer to a static
buffer.
- Changed startmap in d_main.cpp into an FString.
- Changed CheckWarpTransMap() to take an FString& as the first argument.
- Changed d_mapname in g_level.cpp into an FString.
- Changed DoSubstitution() in ct_chat.cpp to place the substitutions in an
FString.
- Fixed: The MAPINFO parser wrote into the string buffer to construct a map
name when given a Hexen map number. This was fine with the old scanner
code, but only a happy coincidence prevents it from crashing with the new
code
- Added the 'B' conversion specifier to StringFormat::VWorker() for printing
binary numbers.
- Added CMake support for building with MinGW, MSYS, and NMake. Linux support
is probably broken until I get around to booting into Linux again. Niceties
provided over the existing Makefiles they're replacing:
* All command-line builds can use the same build system, rather than having
a separate one for MinGW and another for Linux.
* Microsoft's NMake tool is supported as a target.
* Progress meters.
* Parallel makes work from a fresh checkout without needing to be primed
first with a single-threaded make.
* Porting to other architectures should be simplified, whenever that day
comes.
- Replaced the makewad tool with zipdir. This handles the dependency tracking
itself instead of generating an external makefile to do it, since I couldn't
figure out how to generate a makefile with an external tool and include it
with a CMake-generated makefile. Where makewad used a master list of files
to generate the package file, zipdir just zips the entire contents of one or
more directories.
- Added the gdtoa package from netlib's fp library so that ZDoom's printf-style
formatting can be entirely independant of the CRT.
SVN r1082 (trunk)
center because some maps apparently abuse the behavior to make the sound
play somewhere where it can't be heard by the player to fake silent movement.
- Fixed: The S_Sound variant taking an actor must check if the actor is not
NULL.
- Fixed: ACS's ActivatorSound must check if the activator is valid.
- Changed stats drawing so that multi-line strings can be used.
SVN r1070 (trunk)
during it.
- UI sounds are now omitted from savegames.
- Fixed: Menu sounds had been restricted to one at a time again.
- Moved the P_SerializeSounds() call to the end of G_SerializeLevel() so that
it will occur after the players are loaded.
- Added fixes from FreeBSD for 0-length and very large string buffers
passed to myvsnprintf.
SVN r1063 (trunk)
texture definitions. HIRESTEX is still supported but deprecated.
- Removed all 16 bit values from texture manager.
- Changed: The texture manager now sorts all textures for a WAD by type
to avoid priority issues with HIRESTEX defined textures.
- Changed sidedef flag WALLF_ADDTRANS into a linedef flag because it is
always the same for both sides of a linedef. This also makes handling
this in the UDMF parser easier because the linedef parsing function does
not need to access the sidedef data.
- Added new ZDoom specific UDMF linedef and sidedef properties to map parser.
- Added new ZDoom specific UDMF sector properties to map parser.
- Added class definitions for new interpolators that are better
equipped to interact with the interpolated objects.
- Separated interpolation code into its own file r_interpolate.cpp.
- Added some simple customization options to the end game screens.
- Fixed: Polyobject detection in the internal node builder did not work
anymore due to some code rearrangement for UDMF map loading. To keep
it compatible between all map formats the THINGS lump of binary format
maps must be loaded before building the nodes. This also means that
the spawning itself can be done in the same function for all map types
(except Build) now.
- Changed 'Smooth mouse movement' menu option from m_filter to smooth_mouse
which is more what would be expected from this option.
- Fixed: Weapons and ammo items that were modified by Dehacked gave full
ammo when being dropped by monsters. To properly handle this the
handling of spawning Dehacked modified pickups was changed to use
the DECORATE replacement feature instead of hacking the spawn state
of the original item and calling a spawn function from there.
SVN r1001 (trunk)
heavily customized version of DUMB (Dynamic Universal Music Bibliotheque).
It has been slightly modified by me:
* Added support for Ogg Vorbis-compressed samples in XM files ala FMOD.
* Removed excessive mallocs from the replay core.
* Rerolled the loops in resample.c. Unrolling them made the object file
~250k large while providing little benefit. Even at ~100k, I think it's
still larger than it ought to be, but I'll live with it for now.
Other than that, it's essentially the same thing you'd hear in foobar2000,
minus some subsong detection features. Release builds of the library look
like they might even be slightly faster than FMOD, which is a plus.
- Fixed: Timidity::font_add() did not release the file reader it created.
- Fixed: The SF2 loader did not free the sample headers in its destructor.
SVN r995 (trunk)
optional freeverb unit.
- Removed ResetEnvironment hack, since with software reverb, losing the
existing reverb when focus is lost isn't a problem.
- Commented out the TiMidity FIXME messages.
SVN r973 (trunk)
definitions take precedence.
- Added base translation tables for UDMF compatibility maps which only should
handle the native line and sector types of each game.
- Turned the inactive SILENT_INSTANT_FLOORS define into a compatibility option
so that it can be (un)set in a map definition and the menu.
SVN r966 (trunk)
line.
- Fixed: P_SpawnPuff assumed that all melee attacks have the same range
(MELEERANGE) and didn't set the puff to its melee state if the range
was different. Even worse, it checked a global variable for this so
the behavior was undefined when P_SpawnPuff was called from anywhere
else but P_LineAttack. To reduce the amount of parameters I combined
this information with the hitthing and temporary parameters into one
flags parameter. Also changed P_LineAttack so that it gets passed
an additional parameter that specifies whether the attack is a melee
attack or not and set this to true in all calls that are to be considered
melee attacks. I couldn't use the damage type because A_CustomPunch
and A_CustomMeleeAttack allow passing any damage type they want.
- Added a sprite option as an alternative of particles for FX_ROCKET
and FX_GRENADE.
SVN r879 (trunk)
rather than a generic one, so identifying errors among files that all have
the same lump name no longer involves any degree of guesswork in
determining exactly which file the error occurred in.
- Added a check to S_ParseSndSeq() for SNDSEQ lumps with unterminated final
sequences.
- Fixed: Parts of s_sndseq.cpp that scan the Sequences array need NULL
pointer checks, in case an improper sequence was encountered during
parsing but not early enough to avoid creating a slot for it in the array.
SVN r874 (trunk)
can be played as OPL can also be dumped.
- Removed the opl_enable cvar, since OPL playback is now selectable as just
another MIDI device.
- Added support for DRO playback and dual-chip RAW playback.
- Removed MUS support from OPLMUSSong, since using the OPLMIDIDevice with
MUSSong2 works just as well. There are still lots of leftover bits in
the class that should probably be removed at some point, too.
- Added dual-chip dumping support for the RAW format.
- Added DosBox Raw OPL (.DRO) dumping support. For whatever reason,
in_adlib calculates the song length for this format wrong, even though
the exact length is stored right in the header. (But in_adlib seems buggy
in general; too bad it's the only Windows version of Adplug that seems to
exist.)
- Rewrote the OPL dumper to work with MIDI as well as MUS.
SVN r872 (trunk)
advanced sound options menu. Removed opl_enable from the menu.
- Added OPL synth as MIDI device -3. Since this is based on the MUS player
code, it only supports those events and controllers supported by MUS.
Some of Duke's MIDIs sound awful, but I think that may be more because
it's using different instruments... There's a thread in the MIDI streamer
class that could be taken out for Linux, since it doesn't need to deal
with the Windows Multimedia API, but for now, this is still Windows-only.
SVN r864 (trunk)
into a general MIDI player.
- Fixed: Passing false for a stream callback did not stop the stream.
- Removed opl_frequency, since the only time the emulation sounds good is
when it plays at the exact frequency of a real chip.
- Music no longer plays at all when snd_musicvolume is 0.
- Bumped up snd_sfxvolume and snd_musicvolume default values.
SVN r862 (trunk)
- Removed movie volume from the sound menu and renamed some of the other
options to give the MIDI device name more room to display itself.
- Moved the midi device selection into the main sound menu.
- Added FMOD as MIDI device -1, to replace the MIDI mapper. This is still the
default device. By default, it uses exactly the same DLS instruments as the
Microsoft GS Wavetable Synth. If you have another set DLS level 1 patch set
you want to use, set the snd_midipatchfile cvar to specify where it should
load the instruments from.
- Changed the ProduceMIDI function to store its output into a TArray<BYTE>.
An overloaded version wraps around it to continue to supply file-writing
support for external Timidity++ usage.
- Added an FMOD credits banner to comply with their non-commercial license.
- Reimplemented the snd_buffersize cvar for the FMOD Ex sound system. Rather
than a time in ms, this is now the length in samples of the DSP buffer.
Also added the snd_buffercount cvar to offer complete control over the
call to FMOD::System::setDSPBufferSize(). Note that with any snd_samplerate
below about 44kHz, you will need to set snd_buffersize to avoid long
latencies.
- Reimplemented the snd_output cvar for the FMOD Ex sound system.
- Changed snd_samplerate default to 0. This now means to use the default
sample rate.
- Made snd_output, snd_output_format, snd_speakermode, snd_resampler, and
snd_hrtf available through the menu.
- Split the HRTF effect selection into its own cvar: snd_hrtf.
- Removed 96000 Hz option from the menu. It's still available through the
cvar, if desired.
- Fixed: If Windows sound init failed, retry with DirectSound. (Apparently,
WASAPI doesn't work with more than two speakers and PCM-Float output at the
same time.)
- Fixed: Area sounds only played from the front speakers once you got within
the 2D panning area.
SVN r854 (trunk)
- Fixed: Heretic linetype translations included the wrong file.
- Removed all 2D sound positioning code from s_sound.cpp. Everything uses
FMOD's 3D engine now.
- Removed all the channel selection code from s_sound.cpp. FMOD has code to
handle this sort of thing, so let's use it.
- Replaced S_StopSoundID() with S_CheckSingular(). There is no longer a limit
on the number of copies of a particular sound that can be playing at once,
aside from Strife's special singular sounds. (Sorry, Heretic and Hexen.)
Consequently, the SNDINFO $limit command is now ignored.
- Removed ATTN_SURROUND, since FMOD Ex doesn't exactly support it, and it
only worked as intended on stereo speakers anyway.
- Cleaned out ancient crud from i_sound.cpp.
SVN r826 (trunk)
to be able to save the 3dMidtex attachment info.
- Fixed: The TArray serializer needs to be declared as a friend of TArray
in order to be able to access its fields.
- Since there are no backwards compatibility issues due to savegame version
bumping I closed all gaps in the level flag set.
- Bumped min. Savegame version and Netgame version for 3dMidtex related
changes.
- Changed Jump and Crouch DMFlags into 3-way switches:
0: map default, 1: off, 2: on. Since I needed new bits the rest of
the DMFlag bit values had to be changed as a result.
- fixed: PTR_SlideTraverse didn't check ML_BLOCKMONSTERS for sliding
actors without MF3_NOBLOCKMONST.
- Added MAPINFO commands 'checkswitchrange' and 'nocheckswitchrange'
that can enable or disable switch range checking globally per map.
- Changed ML_3DMIDTEX to force ML_CHECKSWITCHRANGE.
- Added a ML_CHECKSWITCHRANGE flag which allows checking whether the
player can actually reach the switch he wants to use.
- Made DActiveButton::EWhere global so that I can use it outside thr
DActiveButton class.
March 17, 2008 (Changes by Graf Zahl)
- Changed P_LineOpening to pass its result in a struct instead of global
variables.
- Added Eternity's 3DMIDTEX feature (no Eternity code used though.)
It should be feature complete with the exception of the ML_BLOCKMONSTERS
flag handling. That particular part of Eternity's implementation is
sub-optimal because it hijacks an existing flag and doesn't seem to make
much sense to me. Maybe I'll implement it as a separate flag later.
SVN r810 (trunk)
for FMOD Ex while at the same time removing support for FMOD 3. Be sure to update
your SDKs. GCC users, be sure to do a "make cleandep && make clean" before
building, or you will likely get inexplicable errors.
- Fixed: If you wanted to make cleandep with MinGW, you had to specifically
specify Makefile.mingw as the makefile to use.
- Added a normalizer to the OPL synth. It helped bring up the volume a little,
but not nearly as much as I would have liked.
- Removed MIDI Mapper references. It doesn't work with the stream API, and
it doesn't really exist on NT kernels, either.
- Reworked music volume: Except for MIDI, all music volume is controlled
through GSnd and not at the individual song level.
- Removed the mididevice global variable.
- Removed snd_midivolume. Now that all music uses a linear volume scale,
there's no need for two separate music volume controls.
- Increased snd_samplerate default up to 48000.
- Added snd_format, defaulting to "PCM-16".
- Added snd_speakermode, defaulting to "Auto".
- Replaced snd_fpu with snd_resampler, defaulting to "Linear".
- Bumped the snd_channels default up from a pitiful 12 to 32.
- Changed snd_3d default to true. The new cvar snd_hw3d determines if
hardware 3D support is used and default to false.
- Removed the libFLAC source, since FMOD Ex has native FLAC support.
- Removed the altsound code, since it was terribly gimped in comparison to
the FMOD code. It's original purpose was to have been as a springboard for
writing a non-FMOD sound system for Unix-y systems, but that never
happened.
- Finished preliminary FMOD Ex support.
SVN r789 (trunk)
- Added .txt files to the list of types (wad, zip, and pk3) that can be
loaded without listing them after -file.
- Fonts that are created by the ACS setfont command to wrap a texture now
support animated textures.
- FON2 fonts can now use their full palette for CR_UNTRANSLATED when drawn
with the hardware 2D path instead of being restricted to the game palette.
- Fixed: Toggling vid_vsync would reset the displayed fullscreen gamma to 1
on a Radeon 9000.
- Added back the off-by-one palette handling, but in a much more limited
scope than before. The skipped entry is assumed to always be at 248, and
it is assumed that all Shader Model 1.4 cards suffer from this. That's
because all SM1.4 cards are based on variants of the ATI R200 core, and the
RV250 in a Radeon 9000 craps up like this. I see no reason to assume that
other flavors of the R200 are any different. (Interesting note: With the
Radeon 9000, D3DTADDRESS_CLAMP is an invalid address mode when using the
debug Direct3D 9 runtime, but it works perfectly fine with the retail
Direct3D 9 runtime.) (Insight: The R200 probably uses bytes for all its
math inside pixel shaders. That would explain perfectly why I can't use
constants greater than 1 with PS1.4 and why it can't do an exact mapping to
every entry in the color palette.
- Fixed: The software shaded drawer did not work for 2D, because its selected
"color"map was replaced with the identitymap before being used.
- Fixed: I cannot use Printf to output messages before the framebuffer was
completely setup, meaning that Shader Model 1.4 cards could not change
resolution.
- I have decided to let remap palettes specify variable alpha values for
their colors. D3DFB no longer forces them to 255.
- Updated re2c to version 0.12.3.
- Fixed: A_Wander used threshold as a timer, when it should have used
reactiontime.
- Fixed: A_CustomRailgun would not fire at all for actors without a target
when the aim parameter was disabled.
- Made the warp command work in multiplayer, again courtesy of Karate Chris.
- Fixed: Trying to spawn a bot while not in a game made for a crashing time.
(Patch courtesy of Karate Chris.)
- Removed some floating point math from hu_scores.cpp that somebody's GCC
gave warnings for (not mine, though).
- Fixed: The SBarInfo drawbar command crashed if the sprite image was
unavailable.
- Fixed: FString::operator=(const char *) did not release its old buffer when
being assigned to the null string.
- The scanner no longer has an upper limit on the length of strings it
accepts, though short strings will be faster than long ones.
- Moved all the text scanning functions into a class. Mainly, this means that
multiple script scanner states can be stored without being forced to do so
recursively. I think I might be taking advantage of that in the near
future. Possibly. Maybe.
- Removed some potential buffer overflows from the decal parser.
- Applied Blzut3's SBARINFO update #9:
* Fixed: When using even length values in drawnumber it would cap to a 98
value instead of a 99 as intended.
* The SBarInfo parser can now accept negatives for coordinates. This
doesn't allow much right now, but later I plan to add better fullscreen
hud support in which the negatives will be more useful. This also cleans
up the source a bit since all calls for (x, y) coordinates are with the
function getCoordinates().
- Added support for stencilling actors.
- Added support for non-black colors specified with DTA_ColorOverlay to the
software renderer.
- Fixed: The inverse, gold, red, and green fixed colormaps each allocated
space for 32 different colormaps, even though each only used the first one.
- Added two new blending flags to make reverse subtract blending more useful:
STYLEF_InvertSource and STYLEF_InvertOverlay. These invert the color that
gets blended with the background, since that seems like a good idea for
reverse subtraction. They also work with the other two blending operations.
- Added subtract and reverse subtract blending operations to the renderer.
Since the ERenderStyle enumeration was getting rather unwieldy, I converted
it into a new FRenderStyle structure that lets each parameter of the
blending equation be set separately. This simplified the set up for the
blend quite a bit, and it means a number of new combinations are available
by setting the parameters properly.
SVN r710 (trunk)
will also double as the pistol's icon in the AltHUD.
- Added a generic log display that can show Strife's log messages in all games
regardless of the current game, active status bar and HUD mode.
- Added GZDoom's alt HUD.
SVN r693 (trunk)
reference out of the function code.
- Fixed: The BrainExplosions should not perform any collision detection. To
achieve this their Damage value must be set to 0 when being spawned.
- Added a safety check to savegame versioning so that an invalid revision
(reported as 0) will be handled without breaking savegame compatibility.
SVN r689 (trunk)
were not informed about which team they ended up joining.
- Added Skulltag's DF2_SAME_SPAWN_SPOT flags.
- Fixed: DF2_YES_DEGENERATION was pretty much guaranteed to go out of sync
because it used gametic for timing.
- Added DoubleAmmoFactor as a skill property for the DF2_YES_DOUBLEAMMO flag.
- Renumbered the dmflags2 entries to match Skulltag's again.
- Added Karate Chris's infinite ammo patch.
SVN r683 (trunk)
- moved the AM line drawer into DCanvas as a virtual function. While testing
this code I discovered that the antialias precalculation was never used
except for the very first frame of AM drawing. However, since I couldn't
detect even a marginal performance improvement using this code on 2 computers
I just disabled it completely because it severely complicates a more generic
implementation. I also disabled am_ovtrans in the process because I couldn't
see any positive effects of using this cvar. All it does is adding some
ugly distortion to the lines it affects without any apparent benefits.
* Added fix by Karate Chris containing:
- Added a 'No team changing' DMFlag2 which prevents players from changing teams
unless they are not on a team.
- Added a 'No respawn' DMFlag2 which prevents a player from respawning after
they have died.
- Added a 'Keep frags gained' DMFlag2 which allows you to choose whether you
want to reset the frags of each player next level or not.
- Added a small visual enhancement to the cooperative scoreboard to show
if a player has died.
- Fixed: If the 'teamplay' console variable was set to 'true' in a cooperative
game, the scoreboard would show team play related items as opposed to
cooperative items.
- Fixed: The 'bot_observer' console variable should not work in network games.
- Fixed: Bots made intermission skip really fast.
SVN r634 (trunk)
- Added a new color parameter to DCanvas::Clear() that specifies the
ARGB value of the color. This is used if the old color parameter,
which specifies a palette entry, is -1.
SVN r617 (trunk)
- Fixed: At resolutions taller than 600 pixels or so, tall sky textures were
drawn a row too low. This was quite visible on Hexen MAP06.
- Fixed: P_CheckSlopeWalk() must return false if floorsector != sector, or
the actor will be yanked down to the floorsector by P_TryMove().
- Fixed: ClearActorInventory, GiveActorInventory, and TakeActorInventory
only affected the first actor with the given TID.
- Fixed: The color boxes for the colorpicker menu items were drawn a little
too low.
SVN r603 (trunk)
crouching motion.
- Fixed: The keypress for nightmare mode verification appeared in the console
if the fullscreen console was open while using the menu.
- Added support for scaling down large console fonts in the customize
controls menu.
- Fixed: Joining a negative team was possible.
SVN r590 (trunk)
as a counter by the Hexen fighter's fist weapon.
- Fixed: The Wraithwerge's spirits shouldn't attack friends.
- Fixed: The Heresiarch's balls must not adjust their z-position after the
Heresiarch dies.
- Added damage type specific pain chances and an MF5_NOPAIN flag that can be used
to suppress entering the pain state altogether.
- Changed font initialization so that you can define replacements for the default
fonts in FONTDEFS.
- Removed the 'add a bot' menu option since bots are beyond repair and therefore
mostly useless.
- Fixed: Hitscan attacks must always spawn a puff so that it and its properties
can be used as damage inflictor.
SVN r534 (trunk)
powerup.
- Changed: Weapons are no longer checked for the EXTREMEDEATH and NOEXTREMEDEATH flags.
For all damage related actions it will always be the projectile (or puff for hitscan
attacks) that is treated as the damage inflictor.
- Fixed: Hexen's fourth weapons made extreme death depend on the weapon the player
is holding, not the projectile that did the kill. The WIF_EXTREME_DEATH flag
no longer exists as a result.
- Expanded PowerSpeed so that subclasses can be derived that alter the speed factor.
- Added an MF5_USESPECIAL flag that allows using things to execute their specials.
- added MF4_FORCERADIUSDMG flag so that exploding items can be created which
are able to hurt boss monsters.
- moved ML_BLOCK_PLAYERS to the value 0x4000 to bring it in line with Skulltag's
implementation.
SVN r530 (trunk)
Christoph Oelckers
Randy Heit