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#include "cellref.hpp"
#include <algorithm>
#include <limits>
#include <components/debug/debuglog.hpp>
#include "esmreader.hpp"
#include "esmwriter.hpp"
namespace
{
constexpr int ZeroLock = std::numeric_limits<int>::max();
}
namespace ESM
{
namespace
{
template <bool load>
void loadIdImpl(ESMReader& esm, bool wideRefNum, CellRef& cellRef)
{
// According to Hrnchamd, this does not belong to the actual ref. Instead, it is a marker indicating that
// the following refs are part of a "temp refs" section. A temp ref is not being tracked by the moved
// references system. Its only purpose is a performance optimization for "immovable" things. We don't need
// this, and it's problematic anyway, because any item can theoretically be moved by a script.
if (esm.isNextSub("NAM0"))
esm.skipHSub();
if constexpr (load)
{
cellRef.blank();
cellRef.mRefNum = esm.getFormId(wideRefNum);
cellRef.mRefID = esm.getHNORefId("NAME");
if (cellRef.mRefID.empty())
Log(Debug::Warning) << "Warning: got CellRef with empty RefId in " << esm.getName() << " 0x"
<< std::hex << esm.getFileOffset();
}
else
{
esm.getFormId(wideRefNum);
esm.skipHNORefId("NAME");
}
}
template <bool load>
void loadDataImpl(ESMReader& esm, bool& isDeleted, CellRef& cellRef)
{
const auto getRefIdOrSkip = [&](ESM::RefId& refId) {
if constexpr (load)
refId = esm.getRefId();
else
esm.skipHRefId();
};
const auto getHStringOrSkip = [&](std::string& value) {
if constexpr (load)
value = esm.getHString();
else
esm.skipHString();
};
const auto getHTOrSkip = [&](auto& value) {
if constexpr (load)
esm.getHT(value);
else
esm.skipHT<std::decay_t<decltype(value)>>();
};
if constexpr (load)
isDeleted = false;
bool isLoaded = false;
while (!isLoaded && esm.hasMoreSubs())
{
esm.getSubName();
switch (esm.retSubName().toInt())
{
case fourCC("UNAM"):
getHTOrSkip(cellRef.mReferenceBlocked);
break;
case fourCC("XSCL"):
getHTOrSkip(cellRef.mScale);
if constexpr (load)
cellRef.mScale = std::clamp(cellRef.mScale, 0.5f, 2.0f);
break;
case fourCC("ANAM"):
getRefIdOrSkip(cellRef.mOwner);
break;
case fourCC("BNAM"):
getHStringOrSkip(cellRef.mGlobalVariable);
break;
case fourCC("XSOL"):
getRefIdOrSkip(cellRef.mSoul);
break;
case fourCC("CNAM"):
getRefIdOrSkip(cellRef.mFaction);
break;
case fourCC("INDX"):
getHTOrSkip(cellRef.mFactionRank);
break;
case fourCC("XCHG"):
getHTOrSkip(cellRef.mEnchantmentCharge);
break;
case fourCC("INTV"):
getHTOrSkip(cellRef.mChargeInt);
break;
case fourCC("NAM9"):
getHTOrSkip(cellRef.mCount);
break;
case fourCC("DODT"):
if constexpr (load)
{
esm.getSubComposite(cellRef.mDoorDest);
cellRef.mTeleport = true;
}
else
esm.skipHSub();
break;
case fourCC("DNAM"):
getHStringOrSkip(cellRef.mDestCell);
break;
case fourCC("FLTV"):
getHTOrSkip(cellRef.mLockLevel);
break;
case fourCC("KNAM"):
getRefIdOrSkip(cellRef.mKey);
break;
case fourCC("TNAM"):
getRefIdOrSkip(cellRef.mTrap);
break;
case fourCC("DATA"):
if constexpr (load)
esm.getSubComposite(cellRef.mPos);
else
esm.skipHSub();
break;
case fourCC("NAM0"):
{
esm.skipHSub();
break;
}
case SREC_DELE:
esm.skipHSub();
if constexpr (load)
isDeleted = true;
break;
default:
esm.cacheSubName();
isLoaded = true;
break;
}
}
if constexpr (load)
{
if (esm.getFormatVersion() == DefaultFormatVersion) // loading a content file
cellRef.mIsLocked = !cellRef.mKey.empty() || cellRef.mLockLevel > 0;
else
cellRef.mIsLocked = cellRef.mLockLevel > 0;
if (cellRef.mLockLevel == ZeroLock)
cellRef.mLockLevel = 0;
}
}
}
void CellRef::load(ESMReader& esm, bool& isDeleted, bool wideRefNum)
{
loadId(esm, wideRefNum);
loadData(esm, isDeleted);
}
void CellRef::loadId(ESMReader& esm, bool wideRefNum)
{
loadIdImpl<true>(esm, wideRefNum, *this);
}
void CellRef::loadData(ESMReader& esm, bool& isDeleted)
{
loadDataImpl<true>(esm, isDeleted, *this);
}
void CellRef::save(ESMWriter& esm, bool wideRefNum, bool inInventory, bool isDeleted) const
{
esm.writeFormId(mRefNum, wideRefNum);
esm.writeHNCRefId("NAME", mRefID);
if (isDeleted)
{
esm.writeHNString("DELE", "", 3);
return;
}
if (mScale != 1.0)
{
esm.writeHNT("XSCL", std::clamp(mScale, 0.5f, 2.0f));
}
if (!inInventory)
esm.writeHNOCRefId("ANAM", mOwner);
esm.writeHNOCString("BNAM", mGlobalVariable);
esm.writeHNOCRefId("XSOL", mSoul);
if (!inInventory)
{
esm.writeHNOCRefId("CNAM", mFaction);
if (mFactionRank != -2)
{
esm.writeHNT("INDX", mFactionRank);
}
}
if (mEnchantmentCharge != -1)
esm.writeHNT("XCHG", mEnchantmentCharge);
if (mChargeInt != -1)
esm.writeHNT("INTV", mChargeInt);
if (mCount != 1)
esm.writeHNT("NAM9", mCount);
if (!inInventory && mTeleport)
{
esm.writeNamedComposite("DODT", mDoorDest);
esm.writeHNOCString("DNAM", mDestCell);
}
if (!inInventory)
{
if (mIsLocked)
{
int lockLevel = mLockLevel;
if (lockLevel == 0)
lockLevel = ZeroLock;
esm.writeHNT("FLTV", lockLevel);
esm.writeHNOCRefId("KNAM", mKey);
}
esm.writeHNOCRefId("TNAM", mTrap);
}
if (mReferenceBlocked != -1)
esm.writeHNT("UNAM", mReferenceBlocked);
if (!inInventory)
esm.writeNamedComposite("DATA", mPos);
}
void CellRef::blank()
{
mRefNum = RefNum{};
mRefID = ESM::RefId();
mScale = 1;
mOwner = ESM::RefId();
mGlobalVariable.clear();
mSoul = ESM::RefId();
mFaction = ESM::RefId();
mFactionRank = -2;
mChargeInt = -1;
mChargeIntRemainder = 0.0f;
mEnchantmentCharge = -1;
mCount = 1;
mDestCell.clear();
mLockLevel = 0;
mIsLocked = false;
mKey = ESM::RefId();
mTrap = ESM::RefId();
mReferenceBlocked = -1;
mTeleport = false;
for (int i = 0; i < 3; ++i)
{
mDoorDest.pos[i] = 0;
mDoorDest.rot[i] = 0;
mPos.pos[i] = 0;
mPos.rot[i] = 0;
}
}
void skipLoadCellRef(ESMReader& esm, bool wideRefNum)
{
CellRef cellRef;
loadIdImpl<false>(esm, wideRefNum, cellRef);
bool isDeleted;
loadDataImpl<false>(esm, isDeleted, cellRef);
}
CellRef makeBlankCellRef()
{
CellRef result;
result.blank();
return result;
}
}
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