After testing with a savegame on ZDCMP2 which is probably the largest map in existence, timing both methods resulted in a speed difference of less than 40 ms (70 vs 110 ms for reading all sectory, linedefs, sidedefs and objects).
This compares to an overall restoration time, including reloading the level, precaching all textures and setting everything up, of approx. 1.2 s, meaning an increase of 3% of the entire reloading time.
That's simply not worth all the negative side effects that may happen with a method that highly depends on proper code construction.
On the other hand, using random access means that a savegame version change is only needed now when the semantics of a field change, but not if some get added or deleted.
- do not I_Error out in the serializer unless caused by a programming error.
It is better to let the serializer finish, collect all the errors and I_Error out when the game is known to be in a stable enough state to allow unwinding.
It turned out this may not be done automatically when opening the savegame - it has to be done later, after the pre-spawned map thinkers and all connected objects have been destroyed.
The object deserializer also has to be rather careful about dealing with parse errors, because if something goes wrong a whole batch of uninitialized or partially initialized objects will be left behind to destroy.
This means that no object class may assume that anything but the default constructor has been run on it and needs to check any variable it may reference.
- converted sound and canvas texture serialization.
- refactored file_zip, so that it can be used to load loose zip files and extract their compressed data directly.
- added handling to FSerializer to generate and consume compressed Zip file entries.
If all goes well this will allow saving savegames as Zips when the rework is done, which will make analyzing them a lot easier.
- fixed a few errors in the ACS module serializer.
- reordered a few things to how they were in the old code.
- optimized serialization of the level.Scrolls array to happen within the sector. This is to allow skipping 0-entries which normally constitute the vast majority of them.
- added sanity checks to prevent a savegame from being loaded with an incompatible map
- refactored a few things to simplify serialization.
- started work on main level serializer function.
Note that even with this change it is still not possible to unarchive any thinker pointers before the thinker list has been loaded as it would create broken lists.
Since decals may have thinkers attached this will crash when such a savegame gets loaded, because the thinker lists get reset in P_SerializeThinkers, deleting any thinker that already was processed.
I also added an error message that immediately aborts the save process if such an out-of-sequence thinker is attempted to be written out.
This obviously breaks savegame compatibility again...
- fixed: Visplane checks should only compare the plane flags that are relevant for rendering and mask out the rest.
- floatified FTransform and made the visplane checks a bit less verbose by moving the comparison as an operator into FTransform.
Note that this operator needs forceinline on Visual Studio so that it won't get called as a function.
Note that this required splitting P_SerializeWorld, because sector_t and FSectorPortal contain some actor pointers, for which the same rule applies: Portal linking can only be done after all sectors have been read, meaning it cannot be done along with the rest of the data in these structures.
Obviously such a change breaks savegame compatibility so the min. savegame version had to be increased again.
The old code kept the dead thinker, resulting in constant deletion and recreation of the subsector links and PolyBSP because the interpolation kept running.
Changed it so that the thinker is destroyed and the polyobject gets blocked by setting a new flag.
- some consolidation in p_map.cpp. PIT_CheckLine and PIT_FindFloorCeiling had quite a bit of redundancy which has been merged.
- čontinued work on FMultiBlockLinesIterator. It's still not completely finished.
This was to resolve some circular dependencies with the portal code.
The most notable changees:
* FTextureID was moved from textures.h to doomtype.h because it is frequently needed in files that don't want to do anything with actual textures.
* split off the parts from p_maputl into a separate header.
* consolidated all blockmap related data into p_blockmap.h
* split off the polyobject parts into po_man.h
- store portal data in a separate structure.
- store portal data in savegames because some of this will be changeable later.
- run a cleanup pass after all portals have been created to weed out broken ones.
- add a definition type that's compatible with Eternity Engine's line portal types.
- swapped arg[2] and arg[3] of Line_SetPortal, because the type is more significant than the alignment.
'ceilingterrain' is needed because the top of 3D-floors refers to the model sector's ceiling, so in order to give a 3D floor a terrain it must be assignable to the sector's ceiling.
Note that although it is basically the same property, its actual function bears no relevance to its use in Eternity.
- moved sector secret information from sector_t::special and secretsector to two flag bits in sector_t::Flags.
This is to get rid of the bit masking madness in the floor/ceiling thinkers which need to preserve this bit when they change a sector's type.
Tags are now handled by a tag manager class which stores sector/tag pairs. This way multiple entries can be added per sector.
Since UDMF does not have any arrays the additional tags are stored as a space separated string as 'MoreIDs'.
for bots. Mainly, what this means is that if the player is using the "Base" skin, they will
get their class-appropriate skin instead of skin 0 if this save is loaded before any other
game has started.
SVN r3474 (trunk)
- added DECORATE properties for accuracy and stamina.
- Since these changes move properties from player_t to AActor all savegame compatibility code was removed and the min. savegame version bumped.
SVN r3427 (trunk)
(i.e. ACS_Execute, etc.), set the arg0str property to the name of the script to execute. The
standard numeric arg0 property will be ignored in this case.
SVN r3372 (trunk)
* savegames stored an index in the switch table and performed no validation when loading a savegame.
* setting of a random switch animation duration was broken.
* separated the 2 values stored in the Time variable into 2 separate variables.
* defining a switch with one texture already belonging to another switch could leave broken definitions in the switch table.
- added function for serializing switch and door animation pointers.
- bumped min. savegame versions due to changes to DButtonThinker and removed all current savegame compatibility code.
SVN r3030 (trunk)
the sector. Note that this contrasts with sound sequence things in that it takes a name and
not a number. Also, placing a sound sequence thing in a sector will override this property.
SVN r2492 (trunk)
player does not immediately activate switches. oldbuttons was not usable
for this. This also required that CopyPlayer preserves this info.
- Fixed: When restarting the music there was a NULL pointer check missing
so it crashed when the game was started wi
- Fixed: If the Use key is used to respawn the player it must be cleared
so that it doesn't trigger any subsequent actions after respawning.
- Fixed: Resurrecting a monster did not restore flags5 and flags6.
- Fixed: Projectiles which killed a non-monster were unable to determine
what precisely they hit because MF_CORPSE is only valid for monsters.
A new flag, MF6_KILLED that gets set for all objects that die, was added
for this case.
- Added a generic A_Weave function that exposes all possible options of
A_BishopMissileWeave and A_CStaffMissileSlither. These 2 functions are
no longer needed from DECORATE and therefore deprecated.
SVN r2045 (trunk)
The range checks this protected against can be safely omitted now that the misc fields are large enough.
- added MBF Dehacked emulation.
SVN r1824 (trunk)
that were changed some time ago.
- fixed: The damage inflictor for a rail attack was the shooter, not the puff.
- Fixed: Floor and ceiling huggers may not change their z-velocity when seeking.
- Fixed: UDMF set the secret sector flag before parsing the sector's properties,
resulting in it always being false.
- Renamed sector's oldspecial variable to secretsector to better reflect its
only use.
- Fixed: A_BrainSpit stored as the SpawnShot's target the intended BossTarget,
not itself contrarily to other projectile spawning functions.
A_SpawnFly then used the target for CopyFriendliness, thinking it'll be the
BossEye when in fact it wasn't.
- Added Gez's submission for a DEHACKED hack introduced by Boom.
(using code pointers of the form 'Pointer 0 (x statenumber)'.
- fixed: Attaching 3DMidtex lines by sector tag did not work because lines
were marked by index in the sector's line list but needed to be marked by
line index in the global array.
- fixed: On Linux ZDoom was creating a directory called "~.zdoom" for
save files because of a missing slash.
- fixed: UDMF was unable to read floating point values in exponential format
because the C Mode scanner was missing a definition for them.
- fixed: The recent changes for removing pointer aliasing got the end sequence
info from an incorrect variable. To make this more robust the sequence index
is now stored as a hexadecimal string to avoid storing binary data in a string.
Also moved end sequence lookup from f_finale.cpp to the calling code so that
the proper end sequences can be retrieved for secret exits, too.
SVN r1777 (trunk)
* scalex_top
* scaley_top
* scalex_mid
* scaley_mid
* scalex_bottom
* scalex_bottom
- Added sidedef versions of the linedef flags wrapmidtex and clipmidtex (via
UDMF; names are the same). If the flag is set on the line, it applies to
both sides. Otherwise, each side can control them individually.
SVN r1645 (trunk)
- Removed #pragma warnings from cmdlib.h and fixed the places where they were
still triggered.
These #pragmas were responsible for >90% of the GCC warnings that were not
listed in VC++.
- Fixed one bug in the process: DSeqNode::m_Atten was never adjusted when the
parameter handling of the sound functions for attenuation was changed.
Changed m_Atten to a float and fixed the SNDSEQ parser to set proper values.
Also added the option to specify attenuation with direct values in addition
to the predefined names.
SVN r1583 (trunk)
- Added support for ACS functions that can be defined without recompiling ACC.
- Fixed: The short lump name for embedded files must be cleared so that they
are not found by a normal lump search.
- Added AProp_Notarget actor property.
- Fixed: TraceBleed was missing a NULL pointer check,
- Fixed: P_RandomChaseDir could crash for friendly monsters that belong to
a player which left the game.
- Changed A_PodGrow so that it plays the generator's attack sound instead of
"misc/podgrow".
SVN r1575 (trunk)
- fixed: The nextmap and nextsecret CCMDs need to call G_DeferedInitNew instead of G_InitNew.
- merged MAPINFO branch back into trunk.
SVN r1393 (trunk)
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)
in a level.
- Fixed: Serialized player data must always be loaded, even if it's simply to
be discarded, so that anything serialized after the players will load from
the correct position in the file when revisiting a hub map.
SVN r1069 (trunk)
sounds are handled.
- Why do polyobjects have a 3D start spot? Flattened it to 2D.
- Moved the sector sound origin calculation out of fmodsound.cpp and into
s_sound.cpp so that the near sound limiting will use the correct sound
location for deciding on neighbors.
SVN r1061 (trunk)
the rest of the game is concerned, these sounds will never stop once they
have been started until they are explicitly stopped. If they are evicted
from their channels, the sound code will restart them as soon as possible.
This means that instead of this:
if (!S_IsActorPlayingSomething(actor, CHAN_WEAPON, -1))
{
S_Sound(actor, CHAN_WEAPON|CHAN_LOOP, soundid, 1, ATTN_NORM);
}
The following is now just as effective:
S_Sound(actor, CHAN_WEAPON|CHAN_LOOP, soundid, 1, ATTN_NORM);
There are also a couple of other ramifications presented by this change:
* The full state of the sound system (sans music) is now stored in save
games. Any sounds that were playing when you saved will still be
playing when you load. (Try saving while Korax is making a speech in
Hexen to hear it.)
* Using snd_reset will also preserve any playing sounds.
* Movie playback is disabled, probably forever. I did not want to
update the MovieDisable/ResumeSound stuff for the new eviction
tracking code. A properly updated movie player will use the VMR,
which doesn't need these functions, since it would pipe the sound
straight through the sound system like everything else, so I decided
to dump them now, which leaves the movie player in a totally unworkable
state.
June 26, 2008
- Changed S_Sound() to take the same floating point attenuation that the
internal S_StartSound() uses. Now ambient sounds can use the public
S_Sound() interface.
- Fixed: S_RelinkSound() compared the points of the channels against the
from actor's point, rather than checking the channels' mover.
- Changed Strife's animated doors so that their sounds originate from the
interior of the sector making them and not from the entire vertical height
of the map.
SVN r1055 (trunk)
that animated icons can be done with it.
- Changed FImageCollection to use a TArray to hold its data.
- Fixed: SetChanHeadSettings did an assignment instead of comparing
the channel ID witg CHAN_CEILING.
- Changed sound sequence names for animated doors to FNames.
- Automatically fixed: DCeiling didn't properly serialize its texture id.
- Replaced integers as texture ID representation with a specific new type
to track down all potentially incorrect uses and remaining WORDs used
for texture IDs so that more than 32767 or 65535 textures can be defined.
SVN r1036 (trunk)
- Grouped the sector plane texture transformation options into a separate
structure and replaced all access to them with wrapper functions.
SVN r1033 (trunk)
were doing some things in their destructor that needed to be done in the
Destroy method.
- Rewrote the interpolation code. Interpolations are no longer some objects
that are separate from the rest of the engine. Instead, they are owned by
the thinkers starting them. Also, polyobjects only spawn a single interpolation
for each polyobject instead of a single one for each vertex.
Also, different types of interpolation objects are used for different types
of interpolation so that they can do some additional work if eventually needed.
SVN r1018 (trunk)
They are not needed anywhere else.
- Changed the HackHack hack for corrupt 256 pixel high textures that
FMultiPatchTexture only calls a virtual function instead of doing any
type checks of the patch itself.
- Cleaned up the constant definitions in doomdata.h.
- Moved the TEXTUREx structures from doomdata.h to multipatchtexture.cpp
because they are used only in this one file.
- Removed some more typedefs from r_defs.h and doomdata.h
- Moved local polyobject data definitions from p_local.h to po_man.cpp.
SVN r1012 (trunk)
of type MiscPatch with the same name.
- Added UDMF line trigger types MonsterUse and MonsterPush.
- Separated skill and class filter bits from FMapThing::flags so that
UDMF can define up to 16 of each. Also separated easy/baby and
hard/nightmare and changed default MAPINFO definitions.
- Changed: Crosshair drawing uses the current player class's default health instead
of 100 to calculate the color for the crosshair.
- Added SECF_NOFALLINGDAMAGE flag plus Sector_ChangeFlags to set it. Also separated
all user settable flags from MoreFlags into their own Flags variable.
SVN r964 (trunk)
of all types on the same linedef. Also added a 'first side only' flag. This
is not usable from Hexen or Doom format maps though but in preparation of
the UDMF format discussed here:
http://www.doomworld.com/vb/source-ports/43145-udmf-v0-99-specification-draft-aka-textmap/
- Changed linedef's alpha property from a byte to fixed point after seeing that
255 wasn't handled to be fully opaque.
- fixed a GCC warning in fmodsound.cpp
SVN r954 (trunk)
that the drivers will treat a BackBufferCount of 0 as a request for
double buffering.
- Fixed: Unsetting a cvar did not remove it from the list of tab
completions.
- Added "" as a synonym for "nullimage" in SBARINFO.
- Fixed: MAKESAVESIG's stringifier in version.h did not work as expected.
It stringified the passed macro name, not the value of the macro.
- Moved DCajunMaster off the DObject hierarchy.
- Changed DCajunMaster::getspawned into a TArray of FStrings. It was
mysteriously being left pointing to uninitialized memory during the
final GC at exit and crashing.
- Fixed: The code that removed hexdd.wad from the list of IWADs when
hexen.wad was not present did not work.
SVN r861 (trunk)
Since it uses fixed point parameters it can only be used in scripts though.
- Added flags parameters to all wall scroller specials that didn't use
all 5 args.
- Separated scrolling of the 3 different texture parts of a sidedef.
While doing this I did some more restructuring of the sidedef structure
and changed it so that all state changes to sidedefs that affect rendering
have to be made with access functions. This is not of much use to the
software renderer but it allows far easier caching of rendering data
for OpenGL because the only place I need to check is in the access functions.
SVN r832 (trunk)
- Changed savegame versioning so that the written version is never lower
than the minmum one reported as compatible.
- Added mirrored movement modes for linked sectors.
- Added Eternity-style initialization for linked sectors as a new subtype
of Static_Init.
- Added linked sectors. The control sector determines how they move but if
any one of the linked sectors is blocked, movement for all linked sectors
will be affected. This will allow lifts consisting out of more than one
sector without the risk of breaking them if only one of the sectors is
blocked.
- Fixed: A_Mushroom created an actor on the stack.
SVN r825 (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)
to PO_MovePolyobj() from P_SerializePolyobjs() for a crushing polyobject
that touches a player actor will not have a valid actor->player->mo chain
for P_DamageMobj and crash if it happens to touch the player. Since the
polyobject was presumably in a good spot when the game was saved, we can
just skip this step entirely and let it take care of itself the next time
it moves (by which time, the players will be valid).
- Fixed: When transitioning from fullscreen to windowed mode with D3DFB, the
window kept the WS_EX_TOPMOST style.
- Slight correctness fix: When in fullscreen, the window should have WS_POPUP
style.
- Added a NULL target check to P_SpawnMissileXYZ(), A_DemonAttack1(),
A_DemonAttack2_1(), and A_DemonAttack2_2().
SVN r384 (trunk)
memcpy to copy the player structures.
- Fixed compilation with MinGW again and removed most of the new warnings.
And following is the log that I forgot to paste in for the previous commit:
- Changed the memory management for FString. Instead of using a garbage
collected heap, it now uses normal heap calls and reference counting to
implement lazy copying. You may now use bitwise operators to move
(but not copy!) FStrings around in memory. This means that the
CopyForTArray template function is gone, since TArrays can now freely
move their contents around without bothering with their specifics.
There is one important caveat, however. It is not acceptable to blindly 0
an FString's contents. This necessitated the creation of a proper
constructor for player_s so that it can be reset without using memset. I
did a quick scan of all memsets in the source and didn't see anything else
with a similar problem, but it's possible I missed something.
- Fixed: Build tiles were never deallocated.
- Fixed: Using Build's palette.dat only got half the palette right.
SVN r117 (trunk)
- Added multiple-choice sound sequences. These overcome one of the major
deficiences of the Hexen-inherited SNDSEQ system while still being Hexen
compatible: Custom door sounds can now use different opening and closing
sequences, for both normal and blazing speeds.
- Added a serializer for TArray.
- Added a countof macro to doomtype.h. See the1's blog to find out why
it's implemented the way it is.
<http://blogs.msdn.com/the1/articles/210011.aspx>
- Added a new method to FRandom for getting random numbers larger than 255,
which lets me:
- Fixed: SNDSEQ delayrand commands could delay for no more than 255 tics.
- Fixed: If you're going to have sector_t.SoundTarget, then they need to
be included in the pointer cleanup scans.
- Ported back newer name code from 2.1.
- Fixed: Using -warp with only one parameter in Doom and Heretic to
select a map on episode 1 no longer worked.
- New: Loading a multiplayer save now restores the players based on
their names rather than on their connection order. Using connection
order was sensible when -net was the only way to start a network game,
but with -host/-join, it's not so nice. Also, if there aren't enough
players in the save, then the extra players will be spawned normally,
so you can continue a saved game with more players than you started it
with.
- Added some new SNDSEQ commands to make it possible to define Heretic's
ambient sounds in SNDSEQ: volumerel, volumerand, slot, randomsequence,
delayonce, and restart. With these, it is basically possible to obsolete
all of the $ambient SNDINFO commands.
- Fixed: Sound sequences would only execute one command each time they were
ticked.
- Fixed: No bounds checking was done on the volume sound sequences played at.
- Fixed: The tic parameter to playloop was useless and caused it to
act like a redundant playrepeat. I have removed all the logic that
caused playloop to play repeating sounds, and now it acts like an
infinite sequence of play/delay commands until the sequence is
stopped.
- Fixed: Sound sequences were ticked every frame, not every tic, so all
the delay commands were timed incorrectly and varied depending on your
framerate. Since this is useful for restarting looping sounds that got
cut off, I have not changed this. Instead, the delay commands now
record the tic when execution should resume, not the number of tics
left to delay.
SVN r57 (trunk)
partially because the background patch has to be drawn always to
overwrite the old display.
- Fixed: Giving a health item to a non-player caused a crash.
- Added a compatibility option to limit deh.MaxHealth to the health bonus.
Originally this value wasn't used for health packs. Doing this was a bug
in Boom but since there's quite a few maps out there which require
Boom's altered behavior it has to be compatibility optioned.
- Fixed: The health bonus's max health must be defined by deh.MaxHealth,
not deh.MaxSoulsphere. To achieve this deh.MaxHealth's handling had to
be altered because it has to default to 100.
- Fixed: ZDBSP created incorrect side references with compressed sidedefs
and both sidedefs of a linedef being the same. This only affects the
external tool because the internal node builder is run after uncompressing
the sidedefs.
- Added Jim's latest makefile.linux.
- Added a consistency check to the PNAMES loader because one crash log
indicated that it crashed due to a corrupt PNAMES lump.
- Brought back the sector based sound target handling as a compatibility
option. This radical change just broke far too many maps that depend
on the original behavior. Strife's special AI functions are excluded
though because they work better with the new method.
SVN r56 (trunk)
returning from one function to another function when the function that
was called was used as part of an expression.
- Fixed: Using Thing_Hate with arg0 (hater) set to 0 from an open script
could crash.
- Fixed: Some items along ledges in Hexen's MAP32 (Orchard of Lamentations)
appeared at the bottom of the ledge (and consequently inside it) instead
of on top of it because the items were placed directly on the lines.
AActor::LinkToWorldForMapThing() needs to use the original R_PointOnLineSide()
code to handle situations like this. Previously, it just used the original
code for straight horizontal/vertical lines and used the new code for
diagonal lines.
- Fixed: FWadCollection::MergeLumps() used in incorrect realloc.
- Fixed: FPlayList::NextLine() did not properly handle blank lines in the
playlist.
- Changed: Decals now use lightweight thinkers instead of actors. (76 bytes
versus 396, so you save 320k if you have 1024 decals present.)
- Fixed: Wads added with pullin were loaded immediately after the IWAD.
Exec files are now processed immediately before -file but after autoloading
wads in D_DoomMain().
- Fixed: sdl/i_system.h unconditionally defined SHARE_DIR, preventing
redefinition from the command line.
- Fixed: The standard way to include SDL.h is <SDL.h>, not <SDL/SDL.h>.
- Fixed: Returned FActiveInterpolation::HashKey()'s return type to size_t,
avoiding a pointer truncation warning.
SVN r30 (trunk)
