initialize some uninitialized things

[briaguya0]

Initialize SkinAnimatedLimbData::totalVtxCount to 0 and dlist to SEGMENTED_NULL

totalVtxCount and dlist had no default values, so limbs that don't go through ParseRawData (non-SkinType_Animated limbs) would export uninitialized data into the OTR file.

the only flow where we get intentional data for these is

ZAPDTR/ZAPD/ZLimb.cpp

Line 114 in 74a8e9d

segmentStruct.ExtractFromFile(skinSegmentOffset);

in

ZAPDTR/ZAPD/ZLimb.cpp

Lines 105 to 117 in 74a8e9d

	case ZLimbType::Skin:
	skinSegmentType =
	static_cast<ZLimbSkinType>(BitConverter::ToInt32BE(rawData, rawDataIndex + 8));
	skinSegment = BitConverter::ToUInt32BE(rawData, rawDataIndex + 12);
	if (skinSegmentType == ZLimbSkinType::SkinType_Animated)
	{
	if (skinSegment != 0 && GETSEGNUM(skinSegment) == parent->segment)
	{
	uint32_t skinSegmentOffset = Seg2Filespace(skinSegment, parent->baseAddress);
	segmentStruct.ExtractFromFile(skinSegmentOffset);
	}
	}
	break;

the rest of

ZAPDTR/ZAPD/ZLimb.cpp

Line 61 in 74a8e9d

void ZLimb::ParseRawData()

leaves them uninitialized.

totalVtxCount is written unconditionally and read back as skinVtxCnt.

this means we read garbage in OTRExporter_SkeletonLimb::Save

void OTRExporter_SkeletonLimb::Save(ZResource* res, const fs::path& outPath, BinaryWriter* writer)
{
	[...]
	writer->Write((uint16_t)limb->segmentStruct.totalVtxCount);

dlist (also in OTRExporter_SkeletonLimb::Save) is checked against SEGMENTED_NULL and passed through GETSEGOFFSET into GetDeclaration.

	if (limb->segmentStruct.dlist != SEGMENTED_NULL)
	{
		auto skinGfxDecl = limb->parent->GetDeclaration(GETSEGOFFSET(limb->segmentStruct.dlist));

If the garbage value's offset happened to match a key in the declarations map, it would write that declaration's path as skinDList2 into the OTR file.

Others

they weren't getting initialized so they had garbage

Initialize SetMesh::data to 0

Initialize RoomShapeImageMultiBgEntry::unk_00 and id to 0