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Diffstat (limited to '')
| -rw-r--r-- | src/WorldStorage/MapSerializer.cpp | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/src/WorldStorage/MapSerializer.cpp b/src/WorldStorage/MapSerializer.cpp new file mode 100644 index 000000000..df72d1cc9 --- /dev/null +++ b/src/WorldStorage/MapSerializer.cpp @@ -0,0 +1,280 @@ + +// MapSerializer.cpp + + +#include "Globals.h" +#include "MapSerializer.h" +#include "../StringCompression.h" +#include "zlib/zlib.h" +#include "FastNBT.h" + +#include "../Map.h" +#include "../World.h" + + + + + +cMapSerializer::cMapSerializer(const AString& a_WorldName, cMap * a_Map) + : m_Map(a_Map) +{ + AString DataPath; + Printf(DataPath, "%s/data", a_WorldName.c_str()); + + Printf(m_Path, "%s/map_%i.dat", DataPath.c_str(), a_Map->GetID()); + + cFile::CreateFolder(FILE_IO_PREFIX + DataPath); +} + + + + + +bool cMapSerializer::Load(void) +{ + AString Data = cFile::ReadWholeFile(FILE_IO_PREFIX + m_Path); + if (Data.empty()) + { + return false; + } + + AString Uncompressed; + int res = UncompressStringGZIP(Data.data(), Data.size(), Uncompressed); + + if (res != Z_OK) + { + return false; + } + + // Parse the NBT data: + cParsedNBT NBT(Uncompressed.data(), Uncompressed.size()); + if (!NBT.IsValid()) + { + // NBT Parsing failed + return false; + } + + return LoadMapFromNBT(NBT); +} + + + + + +bool cMapSerializer::Save(void) +{ + cFastNBTWriter Writer; + + SaveMapToNBT(Writer); + + Writer.Finish(); + + #ifdef _DEBUG + cParsedNBT TestParse(Writer.GetResult().data(), Writer.GetResult().size()); + ASSERT(TestParse.IsValid()); + #endif // _DEBUG + + cFile File; + if (!File.Open(FILE_IO_PREFIX + m_Path, cFile::fmWrite)) + { + return false; + } + + AString Compressed; + int res = CompressStringGZIP(Writer.GetResult().data(), Writer.GetResult().size(), Compressed); + + if (res != Z_OK) + { + return false; + } + + File.Write(Compressed.data(), Compressed.size()); + File.Close(); + + return true; +} + + + + + +void cMapSerializer::SaveMapToNBT(cFastNBTWriter & a_Writer) +{ + a_Writer.BeginCompound("data"); + + a_Writer.AddByte("scale", m_Map->GetScale()); + a_Writer.AddByte("dimension", (int) m_Map->GetDimension()); + + a_Writer.AddShort("width", m_Map->GetWidth()); + a_Writer.AddShort("height", m_Map->GetHeight()); + + a_Writer.AddInt("xCenter", m_Map->GetCenterX()); + a_Writer.AddInt("zCenter", m_Map->GetCenterZ()); + + const cMap::cColorList & Data = m_Map->GetData(); + a_Writer.AddByteArray("colors", (char *) &Data[0], Data.size()); + + a_Writer.EndCompound(); +} + + + + + +bool cMapSerializer::LoadMapFromNBT(const cParsedNBT & a_NBT) +{ + int Data = a_NBT.FindChildByName(0, "data"); + if (Data < 0) + { + return false; + } + + int CurrLine = a_NBT.FindChildByName(Data, "scale"); + if (CurrLine >= 0) + { + unsigned int Scale = a_NBT.GetByte(CurrLine); + m_Map->SetScale(Scale); + } + + CurrLine = a_NBT.FindChildByName(Data, "dimension"); + if (CurrLine >= 0) + { + eDimension Dimension = (eDimension) a_NBT.GetByte(CurrLine); + + if (Dimension != m_Map->m_World->GetDimension()) + { + // TODO 2014-03-20 xdot: We should store nether maps in nether worlds, e.t.c. + return false; + } + } + + CurrLine = a_NBT.FindChildByName(Data, "width"); + if (CurrLine >= 0) + { + unsigned int Width = a_NBT.GetShort(CurrLine); + m_Map->m_Width = Width; + } + + CurrLine = a_NBT.FindChildByName(Data, "height"); + if (CurrLine >= 0) + { + unsigned int Height = a_NBT.GetShort(CurrLine); + m_Map->m_Height = Height; + } + + CurrLine = a_NBT.FindChildByName(Data, "xCenter"); + if (CurrLine >= 0) + { + int CenterX = a_NBT.GetInt(CurrLine); + m_Map->m_CenterX = CenterX; + } + + CurrLine = a_NBT.FindChildByName(Data, "zCenter"); + if (CurrLine >= 0) + { + int CenterZ = a_NBT.GetInt(CurrLine); + m_Map->m_CenterZ = CenterZ; + } + + unsigned int NumPixels = m_Map->GetNumPixels(); + m_Map->m_Data.resize(NumPixels); + + CurrLine = a_NBT.FindChildByName(Data, "colors"); + if ((CurrLine >= 0) && (a_NBT.GetType(CurrLine) == TAG_ByteArray)) + { + memcpy(&m_Map->m_Data[0], a_NBT.GetData(CurrLine), NumPixels); + } + + return true; +} + + + + + +cIDCountSerializer::cIDCountSerializer(const AString & a_WorldName) : m_MapCount(0) +{ + AString DataPath; + Printf(DataPath, "%s/data", a_WorldName.c_str()); + + Printf(m_Path, "%s/idcounts.dat", DataPath.c_str()); + + cFile::CreateFolder(FILE_IO_PREFIX + DataPath); +} + + + + + +bool cIDCountSerializer::Load(void) +{ + AString Data = cFile::ReadWholeFile(FILE_IO_PREFIX + m_Path); + if (Data.empty()) + { + return false; + } + + // NOTE: idcounts.dat is not compressed (raw format) + + // Parse the NBT data: + cParsedNBT NBT(Data.data(), Data.size()); + if (!NBT.IsValid()) + { + // NBT Parsing failed + return false; + } + + int CurrLine = NBT.FindChildByName(0, "map"); + if (CurrLine >= 0) + { + m_MapCount = (int)NBT.GetShort(CurrLine) + 1; + } + else + { + m_MapCount = 0; + } + + return true; +} + + + + + +bool cIDCountSerializer::Save(void) +{ + cFastNBTWriter Writer; + + if (m_MapCount > 0) + { + Writer.AddShort("map", m_MapCount - 1); + } + + Writer.Finish(); + + #ifdef _DEBUG + cParsedNBT TestParse(Writer.GetResult().data(), Writer.GetResult().size()); + ASSERT(TestParse.IsValid()); + #endif // _DEBUG + + cFile File; + if (!File.Open(FILE_IO_PREFIX + m_Path, cFile::fmWrite)) + { + return false; + } + + // NOTE: idcounts.dat is not compressed (raw format) + + File.Write(Writer.GetResult().data(), Writer.GetResult().size()); + File.Close(); + + return true; +} + + + + + + + + |