#include "globalmap.hpp"

#include "esmreader.hpp"
#include "esmwriter.hpp"

namespace ESM
{

    void GlobalMap::load(ESMReader& esm)
    {
        esm.getHNT("BNDS", mBounds.mMinX, mBounds.mMaxX, mBounds.mMinY, mBounds.mMaxY);

        esm.getSubNameIs("DATA");
        esm.getSubHeader();
        mImageData.resize(esm.getSubSize());
        esm.getExact(mImageData.data(), mImageData.size());

        while (esm.isNextSub("MRK_"))
        {
            esm.getSubHeader();
            CellId cell;
            esm.getT(cell.first);
            esm.getT(cell.second);
            mMarkers.insert(cell);
        }
    }

    void GlobalMap::save(ESMWriter& esm) const
    {
        esm.writeHNT("BNDS", mBounds);

        esm.startSubRecord("DATA");
        esm.write(mImageData.data(), mImageData.size());
        esm.endRecord("DATA");

        for (std::set<CellId>::const_iterator it = mMarkers.begin(); it != mMarkers.end(); ++it)
        {
            esm.startSubRecord("MRK_");
            esm.writeT(it->first);
            esm.writeT(it->second);
            esm.endRecord("MRK_");
        }
    }

}
