29 lines
833 B
C++
29 lines
833 B
C++
#pragma once
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#include "Common.h"
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#include "Types.h"
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#include <string>
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namespace Feather
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{
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class RegionFile
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{
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char m_header[8KB];
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int32_t m_offsets[1KB];
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inline int GetOffsetIndex(RegionLocalPos pos) { return pos.x + pos.z * 32; }
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public:
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RegionFile(std::string path);
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// Packed data about the offset into the region file to parse chunk data from
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inline int GetOffset(RegionLocalPos pos) { return m_offsets[GetOffsetIndex(pos)]; }
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// Contains data for this chunk?
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inline bool HasChunk(ChunkPos pos) { return GetOffset(RegionLocalPos(pos)) != 0; }
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// Unpack sector num from result of GetOffset()
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static int GetSectorNumber(int packedOffset) { return packedOffset >> 8; }
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// Unpack sector count from result of GetOffset()
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static int GetSectorCount(int packedOffset) { return packedOffset & 0xFF; }
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};
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} |