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d782d37ee2
std::pair<int, int> isn't trivially copyable on some compilers so a specific struct is defined, it's an int pair, but it should be recognised by GCC 11.3 as trivially copyable Vec2iRefId => ESM3ExteriorCellRefId more explcit name and use mX,mY instead of pair renamed files and enum
109 lines
2.6 KiB
C++
109 lines
2.6 KiB
C++
#include "cellid.hpp"
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#include "esmreader.hpp"
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#include "esmwriter.hpp"
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#include <components/misc/algorithm.hpp>
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namespace ESM
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{
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void CellId::load(ESMReader& esm)
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{
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mWorldspace = esm.getHNString("SPAC");
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if (esm.isNextSub("CIDX"))
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{
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esm.getHTSized<8>(mIndex);
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mPaged = true;
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}
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else
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{
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mPaged = false;
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mIndex.mX = 0;
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mIndex.mY = 0;
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}
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}
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void CellId::save(ESMWriter& esm) const
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{
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esm.writeHNString("SPAC", mWorldspace);
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if (mPaged)
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esm.writeHNT("CIDX", mIndex, 8);
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}
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struct VisitCellRefId
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{
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CellId operator()(const ESM::EmptyRefId)
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{
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CellId out;
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out.mPaged = true;
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out.mIndex = {};
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return out;
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}
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CellId operator()(const ESM::StringRefId& id)
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{
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CellId out;
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out.mPaged = false;
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out.mWorldspace = id.getValue();
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out.mIndex = { 0, 0 };
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return out;
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}
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CellId operator()(const ESM::ESM3ExteriorCellRefId& id)
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{
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CellId out;
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out.mPaged = true;
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out.mIndex = { id.getX(), id.getY() };
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return out;
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}
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template <typename T>
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CellId operator()(const T& id)
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{
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throw std::runtime_error("cannot extract CellId from this Id type");
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}
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};
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CellId CellId::extractFromRefId(const ESM::RefId& id)
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{
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// This is bad and that code should not be merged.
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return visit(VisitCellRefId(), id);
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}
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bool operator==(const CellId& left, const CellId& right)
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{
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return left.mWorldspace == right.mWorldspace && left.mPaged == right.mPaged
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&& (!left.mPaged || (left.mIndex.mX == right.mIndex.mX && left.mIndex.mY == right.mIndex.mY));
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}
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bool operator!=(const CellId& left, const CellId& right)
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{
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return !(left == right);
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}
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bool operator<(const CellId& left, const CellId& right)
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{
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if (left.mPaged < right.mPaged)
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return true;
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if (left.mPaged > right.mPaged)
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return false;
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if (left.mPaged)
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{
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if (left.mIndex.mX < right.mIndex.mX)
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return true;
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if (left.mIndex.mX > right.mIndex.mX)
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return false;
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if (left.mIndex.mY < right.mIndex.mY)
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return true;
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if (left.mIndex.mY > right.mIndex.mY)
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return false;
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}
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return left.mWorldspace < right.mWorldspace;
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}
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}
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