PackFile.bt

struct PackFile(uint32 iOffset, uint32 iSize)
{
    struct
    {
        char   magic[2];
        uint16 version;
        uint16 zero;
        uint16 headerSize;
        char   type[4];
    } header;
    
    while (FTell() < iOffset + iSize)
    {
        struct
        {
            struct
            {
                char magic[4];
                uint32 chunkSize;
            
                struct 
                {
                    uint16 version;
                    uint16 headerSize;
                    uint32 offsetToOffsetTable;
                } chunkInfos;
            } header;

            if (header.chunkInfos.offsetToOffsetTable != 0)
            {
                ubyte data[header.chunkInfos.offsetToOffsetTable];
                struct
                {
                    uint32 nbOfOffsets;
                    uint32 offsets[nbOfOffsets];
                } offsetTable;
            }
            else
            {
                ubyte data[header.chunkSize - 8];
            }

            if ((FTell() - startof(chunk)) < (header.chunkSize + 8))
            {
                ubyte unknown[header.chunkSize + 8 - (FTell() - startof(chunk))];
            }
        } chunk;
    }
};

local uint32 lPackFileChunkLoopIndex<hidden=true>;
local uint32 lPackFileOffsetLoopIndex<hidden=true>;
void highlightOffsets(const PackFile& iPackFile)
{
    SetBackColor(cLtAqua);
    lPackFileChunkLoopIndex = 0;
    while (exists(iPackFile.chunk[lPackFileChunkLoopIndex]))
    {
        if (exists(iPackFile.chunk[lPackFileChunkLoopIndex].offsetTable))
        {
            lPackFileOffsetLoopIndex = 0;
            while (lPackFileOffsetLoopIndex < iPackFile.chunk[lPackFileChunkLoopIndex].offsetTable.nbOfOffsets)
            {
                FSeek(startof(iPackFile.chunk[lPackFileChunkLoopIndex].data) + iPackFile.chunk[lPackFileChunkLoopIndex].offsetTable.offsets[lPackFileOffsetLoopIndex]);
                uint32 highlightedOffsets;   
                lPackFileOffsetLoopIndex = lPackFileOffsetLoopIndex + 1;
            }
        }
        lPackFileChunkLoopIndex = lPackFileChunkLoopIndex + 1;
    }
    SetBackColor(cNone);
}