DiabloIIResurrected_Model.bt

//--------------------------------------------------------------------------------------------------------------------------//
// Diablo 2 Resurrected Model
// It's basicly rad granny format, with extra data added by blizz
// Template might work on other gr2 files, like Teso/Metin
// Compression seems to always be bitknit2
// 1. Read the data as seen in this template
// 2. Decompress the compressed sections and pointer fixup data
// 3. Transfer pointers based on the descriptions at pointerFixupArrayOffset
// 4. There's also some data that needs to be shifted around, I skip this step, 
// based on data at mixedMarshallingFixupArrayOffset
// 5. I merge all the sections into one file that can be parsed, 
// the reason why I do it is because there are pointers in one section that refer to another during the pointer fixup stage
//--------------------------------------------------------------------------------------------------------------------------//

#include "Lib/Common.bt"
#include "DiabloIIResurrected/Model/GrannyMagic.bt"
#include "DiabloIIResurrected/Model/Header.bt"
#include "DiabloIIResurrected/Model/Section.bt"
#include "DiabloIIResurrected/Model/FixupData.bt"

GrnMagic gran;
Header header;
FSeek(HeaderStartPos + header.sectionArrayOffset);
Section sections[header.sectionArrayCount];
local int i;
for (i = 0; i < header.sectionArrayCount; i++)
{
    if (sections[i].dataSize > 0)
    {
        FSeek(sections[i].dataOffset);
        DATA compressedData(sections[i].dataSize, i)<name = GetSectionName>;
    }
}

for (i = 0; i < header.sectionArrayCount; i++)
{
    if (sections[i].dataSize > 0)
    {
        if (sections[i].pointerFixupArrayCount > 0)
        {
            FSeek(sections[i].pointerFixupArrayOffset);
            FixupDATA fixupData;
        }
        if (sections[i].mixedMarshallingFixupArrayCount > 0)
        {
            FSeek(sections[i].mixedMarshallingFixupArrayOffset);
            FixupDATA marshalData;
        }
    }
}