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Split off FOF archiving-related code into their own functions

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This commit is contained in:
Monster Iestyn 2020-04-24 20:26:57 +01:00
parent d1d006a1a7
commit 08a7fcbe8d
1 changed files with 93 additions and 80 deletions
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173
src/p_saveg.c
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@ -772,6 +772,95 @@ static void P_NetUnArchiveColormaps(void)
#define LD_S2BOTTEX 0x04
#define LD_S2MIDTEX 0x08
#define FD_FLAGS 0x01
#define FD_ALPHA 0x02
// Check if any of the sector's FOFs differ from how they spawned
static boolean CheckFFloorDiff(sector_t *ss)
{
ffloor_t *rover;
for (rover = ss->ffloors; rover; rover = rover->next)
{
if (rover->flags != rover->spawnflags
|| rover->alpha != rover->spawnalpha)
{
return true; // we found an FOF that changed!
// don't bother checking for more, we do that later
}
}
return false;
}
// 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
static void ArchiveFFloors(UINT8 *put, sector_t *ss)
{
size_t j = 0; // ss->ffloors is saved as ffloor #0, ss->ffloors->next is #1, etc
ffloor_t *rover;
UINT8 fflr_diff;
for (rover = ss->ffloors; rover; rover = rover->next)
{
fflr_diff = 0; // reset diff flags
if (rover->flags != rover->spawnflags)
fflr_diff |= FD_FLAGS;
if (rover->alpha != rover->spawnalpha)
fflr_diff |= FD_ALPHA;
if (fflr_diff)
{
WRITEUINT16(put, j); // save ffloor "number"
WRITEUINT8(put, fflr_diff);
if (fflr_diff & FD_FLAGS)
WRITEUINT32(put, rover->flags);
if (fflr_diff & FD_ALPHA)
WRITEINT16(put, rover->alpha);
}
j++;
}
WRITEUINT16(put, 0xffff);
}
static void UnArchiveFFloors(UINT8 *get, sector_t *ss)
{
UINT16 j = 0; // number of current ffloor in loop
UINT16 fflr_i; // saved ffloor "number" of next modified ffloor
UINT16 fflr_diff; // saved ffloor diff
ffloor_t *rover;
rover = ss->ffloors;
if (!rover) // it is assumed sectors[i].ffloors actually exists, but just in case...
I_Error("Sector does not have any ffloors!");
fflr_i = READUINT16(get); // get first modified ffloor's number ready
for (;;) // for some reason the usual for (rover = x; ...) thing doesn't work here?
{
if (fflr_i == 0xffff) // end of modified ffloors list, let's stop already
break;
// should NEVER need to be checked
//if (rover == NULL)
//break;
if (j != fflr_i) // this ffloor was not modified
{
j++;
rover = rover->next;
continue;
}
fflr_diff = READUINT8(get);
if (fflr_diff & FD_FLAGS)
rover->flags = READUINT32(get);
if (fflr_diff & FD_ALPHA)
rover->alpha = READINT16(get);
fflr_i = READUINT16(get); // get next ffloor "number" ready
j++;
rover = rover->next;
}
}
//
// P_NetArchiveWorld
//
@ -838,20 +927,8 @@ static void P_NetArchiveWorld(void)
if (ss->crumblestate)
diff3 |= SD_CRUMBLESTATE;
// Check if any of the sector's FOFs differ from how they spawned
if (ss->ffloors)
{
ffloor_t *rover;
for (rover = ss->ffloors; rover; rover = rover->next)
{
if (rover->flags != rover->spawnflags
|| rover->alpha != rover->spawnalpha)
{
diff |= SD_FFLOORS; // we found an FOF that changed!
break; // don't bother checking for more, we do that later
}
}
}
if (ss->ffloors && CheckFFloorDiff(ss))
diff |= SD_FFLOORS;
if (diff3)
diff2 |= SD_DIFF3;
@ -906,35 +983,8 @@ static void P_NetArchiveWorld(void)
// returns existing index if already added, or appends to net_colormaps and returns new index
if (diff3 & SD_CRUMBLESTATE)
WRITEINT32(put, ss->crumblestate);
// 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
if (diff & SD_FFLOORS)
{
size_t j = 0; // ss->ffloors is saved as ffloor #0, ss->ffloors->next is #1, etc
ffloor_t *rover;
UINT8 fflr_diff;
for (rover = ss->ffloors; rover; rover = rover->next)
{
fflr_diff = 0; // reset diff flags
if (rover->flags != rover->spawnflags)
fflr_diff |= 1;
if (rover->alpha != rover->spawnalpha)
fflr_diff |= 2;
if (fflr_diff)
{
WRITEUINT16(put, j); // save ffloor "number"
WRITEUINT8(put, fflr_diff);
if (fflr_diff & 1)
WRITEUINT32(put, rover->flags);
if (fflr_diff & 2)
WRITEINT16(put, rover->alpha);
}
j++;
}
WRITEUINT16(put, 0xffff);
}
ArchiveFFloors(put, ss);
}
}
@ -1114,44 +1164,7 @@ static void P_NetUnArchiveWorld(void)
sectors[i].crumblestate = READINT32(get);
if (diff & SD_FFLOORS)
{
UINT16 j = 0; // number of current ffloor in loop
UINT16 fflr_i; // saved ffloor "number" of next modified ffloor
UINT16 fflr_diff; // saved ffloor diff
ffloor_t *rover;
rover = sectors[i].ffloors;
if (!rover) // it is assumed sectors[i].ffloors actually exists, but just in case...
I_Error("Sector does not have any ffloors!");
fflr_i = READUINT16(get); // get first modified ffloor's number ready
for (;;) // for some reason the usual for (rover = x; ...) thing doesn't work here?
{
if (fflr_i == 0xffff) // end of modified ffloors list, let's stop already
break;
// should NEVER need to be checked
//if (rover == NULL)
//break;
if (j != fflr_i) // this ffloor was not modified
{
j++;
rover = rover->next;
continue;
}
fflr_diff = READUINT8(get);
if (fflr_diff & 1)
rover->flags = READUINT32(get);
if (fflr_diff & 2)
rover->alpha = READINT16(get);
fflr_i = READUINT16(get); // get next ffloor "number" ready
j++;
rover = rover->next;
}
}
UnArchiveFFloors(get, sectors[i]);
}
for (;;)