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Added P_LoadReject function to properly check if REJECT lump is valid or not when loading it, so P_CheckSight can avoid accessing it if not.

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This should mean that maps built with ZBSDP (no reject) should have less or no problems in netgames compared to the standard ZenNode maps now, hopefully. =)
This commit is contained in:
Monster Iestyn 2016-06-11 18:45:56 +01:00
parent df92dc8d9e
commit a7a7a7ee6d
2 changed files with 32 additions and 4 deletions
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27
src/p_setup.c
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@ -1977,6 +1977,31 @@ static void P_GroupLines(void)
} }
} }
//
// P_LoadReject
//
// Detect if the REJECT lump is valid,
// if not, rejectmatrix will be NULL
static void P_LoadReject(lumpnum_t lumpnum)
{
size_t count;
const char *lumpname = W_CheckNameForNum(lumpnum);
// Check if the lump exists, and if it's named "REJECT"
if (!lumpname || memcmp(lumpname, "REJECT", 8) != 0)
{
rejectmatrix = NULL;
return;
}
count = W_LumpLength(lumpnum);
if (!count) // zero length, someone probably used ZDBSP
rejectmatrix = NULL;
else
rejectmatrix = W_CacheLumpNum(lumpnum, PU_LEVEL);
}
#if 0 #if 0
static char *levellumps[] = static char *levellumps[] =
{ {
@ -2585,7 +2610,7 @@ boolean P_SetupLevel(boolean skipprecip)
P_LoadSubsectors(lastloadedmaplumpnum + ML_SSECTORS); P_LoadSubsectors(lastloadedmaplumpnum + ML_SSECTORS);
P_LoadNodes(lastloadedmaplumpnum + ML_NODES); P_LoadNodes(lastloadedmaplumpnum + ML_NODES);
P_LoadSegs(lastloadedmaplumpnum + ML_SEGS); P_LoadSegs(lastloadedmaplumpnum + ML_SEGS);
rejectmatrix = W_CacheLumpNum(lastloadedmaplumpnum + ML_REJECT, PU_LEVEL); P_LoadReject(lastloadedmaplumpnum + ML_REJECT);
P_GroupLines(); P_GroupLines();
numdmstarts = numredctfstarts = numbluectfstarts = 0; numdmstarts = numredctfstarts = numbluectfstarts = 0;

3
src/p_sight.c
View file

@ -325,9 +325,12 @@ boolean P_CheckSight(mobj_t *t1, mobj_t *t2)
s2 = t2->subsector->sector; s2 = t2->subsector->sector;
pnum = (s1-sectors)*numsectors + (s2-sectors); pnum = (s1-sectors)*numsectors + (s2-sectors);
if (rejectmatrix != NULL)
{
// Check in REJECT table. // Check in REJECT table.
if (rejectmatrix[pnum>>3] & (1 << (pnum&7))) // can't possibly be connected if (rejectmatrix[pnum>>3] & (1 << (pnum&7))) // can't possibly be connected
return false; return false;
}
// killough 11/98: shortcut for melee situations // killough 11/98: shortcut for melee situations
// same subsector? obviously visible // same subsector? obviously visible