DarkflameServer/dCommon/dClient/Pack.h

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#pragma once
#include <vector>
#include <string>
#include <filesystem>
#include <fstream>
#pragma pack(push, 1)
struct PackRecord {
uint32_t m_Crc;
int32_t m_LowerCrc;
int32_t m_UpperCrc;
uint32_t m_UncompressedSize;
char m_UncompressedHash[32];
uint32_t m_Padding1;
uint32_t m_CompressedSize;
char m_CompressedHash[32];
uint32_t m_Padding2;
uint32_t m_FilePointer;
uint32_t m_IsCompressed; // u32 bool
};
#pragma pack(pop)
class Pack {
public:
Pack(const std::filesystem::path& filePath);
~Pack() = default;
bool HasFile(uint32_t crc);
bool ReadFileFromPack(uint32_t crc, char** data, uint32_t* len);
private:
std::ifstream m_FileStream;
std::filesystem::path m_FilePath;
char m_Version[7];
uint32_t m_RecordCount;
std::vector<PackRecord> m_Records;
};