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Sync sector tags and tag list variables properly

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Dunno who thought it was a good idea to lump tag, nexttag and firsttag together in $$$.sav, but that meant changing sector tags caused SRB2 to stop responding since it lead to the tag lists being broken
This commit is contained in:
Monster Iestyn 2017-01-03 20:48:39 +00:00
parent a0d095e707
commit b768c4b961
4 changed files with 15 additions and 8 deletions
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19
src/p_saveg.c
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@ -460,6 +460,7 @@ static void P_NetUnArchivePlayers(void)
#define SD_TAG 0x10
#define SD_FLOORANG 0x20
#define SD_CEILANG 0x40
#define SD_TAGLIST 0x80
#define LD_FLAG 0x01
#define LD_SPECIAL 0x02
@ -535,6 +536,8 @@ static void P_NetArchiveWorld(void)
if (ss->tag != SHORT(ms->tag))
diff2 |= SD_TAG;
if (ss->nexttag != ss->spawn_nexttag || ss->firsttag != ss->spawn_firsttag)
diff2 |= SD_TAGLIST;
// Check if any of the sector's FOFs differ from how they spawned
if (ss->ffloors)
@ -582,16 +585,17 @@ static void P_NetArchiveWorld(void)
WRITEFIXED(put, ss->ceiling_xoffs);
if (diff2 & SD_CYOFFS)
WRITEFIXED(put, ss->ceiling_yoffs);
if (diff2 & SD_TAG)
{
if (diff2 & SD_TAG) // save only the tag
WRITEINT16(put, ss->tag);
WRITEINT32(put, ss->firsttag);
WRITEINT32(put, ss->nexttag);
}
if (diff2 & SD_FLOORANG)
WRITEANGLE(put, ss->floorpic_angle);
if (diff2 & SD_CEILANG)
WRITEANGLE(put, ss->ceilingpic_angle);
if (diff2 & SD_TAGLIST) // save both firsttag and nexttag
{ // either of these could be changed even if tag isn't
WRITEINT32(put, ss->firsttag);
WRITEINT32(put, ss->nexttag);
}
// Special case: save the stats of all modified ffloors along with their ffloor "number"s
// we don't bother with ffloors that haven't changed, that would just add to savegame even more than is really needed
@ -774,12 +778,11 @@ static void P_NetUnArchiveWorld(void)
if (diff2 & SD_CYOFFS)
sectors[i].ceiling_yoffs = READFIXED(get);
if (diff2 & SD_TAG)
sectors[i].tag = READINT16(get); // DON'T use P_ChangeSectorTag
if (diff2 & SD_TAGLIST)
{
INT16 tag;
tag = READINT16(get);
sectors[i].firsttag = READINT32(get);
sectors[i].nexttag = READINT32(get);
P_ChangeSectorTag(i, tag);
}
if (diff2 & SD_FLOORANG)
sectors[i].floorpic_angle = READANGLE(get);

1
src/p_setup.c
View file

@ -614,6 +614,7 @@ static void P_LoadSectors(lumpnum_t lumpnum)
ss->special = SHORT(ms->special);
ss->tag = SHORT(ms->tag);
ss->nexttag = ss->firsttag = -1;
ss->spawn_nexttag = ss->spawn_firsttag = -1;
memset(&ss->soundorg, 0, sizeof(ss->soundorg));
ss->validcount = 0;

2
src/p_spec.c
View file

@ -1519,6 +1519,8 @@ static inline void P_InitTagLists(void)
size_t j = (unsigned)sectors[i].tag % numsectors;
sectors[i].nexttag = sectors[j].firsttag;
sectors[j].firsttag = (INT32)i;
sectors[i].spawn_nexttag = sectors[i].nexttag;
sectors[j].spawn_firsttag = sectors[j].firsttag;
}
for (i = numlines - 1; i != (size_t)-1; i--)

1
src/r_defs.h
View file

@ -383,6 +383,7 @@ typedef struct sector_s
#endif
// these are saved for netgames, so do not let Lua touch these!
INT32 spawn_nexttag, spawn_firsttag; // the actual nexttag/firsttag values may differ if the sector's tag was changed
// offsets sector spawned with (via linedef type 7)
fixed_t spawn_flr_xoffs, spawn_flr_yoffs;