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- added initialization for line and sector portals

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Resizing of portal arrays during serialization could lead to processing of junk data

https://forum.zdoom.org/viewtopic.php?t=67494
This commit is contained in:
alexey.lysiuk 2020-08-22 10:57:13 +03:00
parent 05f9df7057
commit f9708e225c
3 changed files with 10 additions and 4 deletions
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1
src/maploader/specials.cpp
View file

@ -127,7 +127,6 @@ void MapLoader::SpawnLinePortal(line_t* line)
line->portalindex = Level->linePortals.Reserve(1);
FLinePortal *port = &Level->linePortals.Last();
memset(port, 0, sizeof(FLinePortal));
port->mOrigin = line;
port->mDestination = dst;
port->mType = uint8_t(line->args[2]); // range check is done above.

3
src/playsim/portal.cpp
View file

@ -540,7 +540,6 @@ unsigned FLevelLocals::GetSkyboxPortal(AActor *actor)
if (sectorPortals[i].mSkybox == actor) return i;
}
unsigned i = sectorPortals.Reserve(1);
memset(&sectorPortals[i], 0, sizeof(sectorPortals[i]));
sectorPortals[i].mType = PORTS_SKYVIEWPOINT;
sectorPortals[i].mFlags = actor->GetClass()->IsDescendantOf("SkyCamCompat") ? 0 : PORTSF_SKYFLATONLY;
sectorPortals[i].mSkybox = actor;
@ -565,7 +564,6 @@ DEFINE_ACTION_FUNCTION(FLevelLocals, GetSkyboxPortal)
unsigned FLevelLocals::GetPortal(int type, int plane, sector_t *from, sector_t *to, const DVector2 &displacement)
{
unsigned i = sectorPortals.Reserve(1);
memset(&sectorPortals[i], 0, sizeof(sectorPortals[i]));
sectorPortals[i].mType = type;
sectorPortals[i].mPlane = plane;
sectorPortals[i].mOrigin = from;
@ -586,7 +584,6 @@ unsigned FLevelLocals::GetPortal(int type, int plane, sector_t *from, sector_t *
unsigned FLevelLocals::GetStackPortal(AActor *point, int plane)
{
unsigned i = sectorPortals.Reserve(1);
memset(&sectorPortals[i], 0, sizeof(sectorPortals[i]));
sectorPortals[i].mType = PORTS_STACKEDSECTORTHING;
sectorPortals[i].mPlane = plane;
sectorPortals[i].mOrigin = point->target->Sector;

10
src/playsim/portal.h
View file

@ -193,6 +193,11 @@ struct FLinePortal
double mCosRot;
portnode_t *lineportal_thinglist;
FLinePortalSpan *mGroup;
FLinePortal()
{
memset(this, 0, sizeof *this);
}
};
struct FLinePortalSpan
@ -238,6 +243,11 @@ struct FSectorPortal
double mPlaneZ;
TObjPtr<AActor*> mSkybox;
FSectorPortal()
{
memset(this, 0, sizeof * this);
}
bool MergeAllowed() const
{
// For thing based stack sectors and regular skies the portal has no relevance for merging visplanes.