FeatherMC/src/world/RegionFile.cpp

#include "RegionFile.h"
#include "util/ByteUtil.h"

#include <fstream>

using std::string;

namespace Feather
{
	RegionFile::RegionFile(string path)
		: m_path(path)
	{
		m_stream = new std::ifstream(path, std::ifstream::binary);
		m_stream->read(m_header, 8KB);

		// Populate m_offsets
		for (int i = 0; i < 1024; i++)
		{
			int32_t readInt = 0;
			std::memcpy(&readInt, &m_header[i * sizeof(int32_t)], sizeof(int32_t));

			// Read big endian ints.
			readInt = ReverseBytes(readInt);
			m_offsets[i] = readInt;

			if (readInt == 0) continue;

			//int sector = GetSectorNumber(readInt);
			//int sectorCount = GetSectorCount(readInt);
			//Log::Trace("{}: Sector [{:x}] Count:{} Num:{}", i, readInt, sectorCount, sector);
			// We can record which sectors are used by this region here
		}
	}
}