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Implement anvil chunk sparsing

This commit is contained in:
peterbell10 2017-08-20 23:23:23 +01:00 committed by Lukas Pioch
parent 3ebcf0fd5c
commit 447d929da1
5 changed files with 160 additions and 26 deletions

View File

@ -422,6 +422,129 @@ void cChunkData::CopySkyLight(NIBBLETYPE * a_Dest) const
void cChunkData::FillBlockTypes(BLOCKTYPE a_Value)
{
// If needed, allocate any missing sections
if (a_Value != 0x00)
{
for (auto & Section : m_Sections)
{
if (Section == nullptr)
{
Section = Allocate();
std::fill(std::begin(Section->m_BlockMetas), std::end(Section->m_BlockMetas), 0x00);
std::fill(std::begin(Section->m_BlockLight), std::end(Section->m_BlockLight), 0x00);
std::fill(std::begin(Section->m_BlockSkyLight), std::end(Section->m_BlockSkyLight), 0xff);
}
}
}
for (auto Section : m_Sections)
{
if (Section != nullptr)
{
std::fill(std::begin(Section->m_BlockTypes), std::end(Section->m_BlockTypes), a_Value);
}
}
}
void cChunkData::FillMetas(NIBBLETYPE a_Value)
{
// If needed, allocate any missing sections
if (a_Value != 0x00)
{
for (auto & Section : m_Sections)
{
if (Section == nullptr)
{
Section = Allocate();
std::fill(std::begin(Section->m_BlockTypes), std::end(Section->m_BlockTypes), 0x00);
std::fill(std::begin(Section->m_BlockLight), std::end(Section->m_BlockLight), 0x00);
std::fill(std::begin(Section->m_BlockSkyLight), std::end(Section->m_BlockSkyLight), 0xff);
}
}
}
NIBBLETYPE NewMeta = static_cast<NIBBLETYPE>((a_Value << 4) | a_Value);
for (auto Section : m_Sections)
{
if (Section != nullptr)
{
std::fill(std::begin(Section->m_BlockMetas), std::end(Section->m_BlockMetas), NewMeta);
}
}
}
void cChunkData::FillBlockLight(NIBBLETYPE a_Value)
{
// If needed, allocate any missing sections
if (a_Value != 0x00)
{
for (auto & Section : m_Sections)
{
if (Section == nullptr)
{
Section = Allocate();
std::fill(std::begin(Section->m_BlockTypes), std::end(Section->m_BlockTypes), 0x00);
std::fill(std::begin(Section->m_BlockMetas), std::end(Section->m_BlockMetas), 0x00);
std::fill(std::begin(Section->m_BlockSkyLight), std::end(Section->m_BlockSkyLight), 0xff);
}
}
}
NIBBLETYPE NewLight = static_cast<NIBBLETYPE>((a_Value << 4) | a_Value);
for (auto Section : m_Sections)
{
if (Section != nullptr)
{
std::fill(std::begin(Section->m_BlockLight), std::end(Section->m_BlockLight), NewLight);
}
}
}
void cChunkData::FillSkyLight(NIBBLETYPE a_Value)
{
// If needed, allocate any missing sections
if (a_Value != 0x0f)
{
for (auto & Section : m_Sections)
{
if (Section == nullptr)
{
Section = Allocate();
std::fill(std::begin(Section->m_BlockTypes), std::end(Section->m_BlockTypes), 0x00);
std::fill(std::begin(Section->m_BlockMetas), std::end(Section->m_BlockMetas), 0x00);
std::fill(std::begin(Section->m_BlockLight), std::end(Section->m_BlockLight), 0x00);
}
}
}
NIBBLETYPE NewSkyLight = static_cast<NIBBLETYPE>((a_Value << 4) | a_Value);
for (auto Section : m_Sections)
{
if (Section != nullptr)
{
std::fill(std::begin(Section->m_BlockSkyLight), std::end(Section->m_BlockSkyLight), NewSkyLight);
}
}
}
void cChunkData::SetBlockTypes(const BLOCKTYPE * a_Src)
{
ASSERT(a_Src != nullptr);

View File

@ -80,6 +80,18 @@ public:
/** Copies the skylight data into the specified flat array. */
void CopySkyLight (NIBBLETYPE * a_Dest) const;
/** Fills the chunk with the specified block. */
void FillBlockTypes(BLOCKTYPE a_Value);
/** Fills the chunk with the specified meta value. */
void FillMetas (NIBBLETYPE a_Value);
/** Fills the chunk with the specified block light. */
void FillBlockLight(NIBBLETYPE a_Value);
/** Fills the chunk with the specified sky light. */
void FillSkyLight (NIBBLETYPE a_Value);
/** Copies the blocktype data from the specified flat array into the internal representation.
Allocates sections that are needed for the operation.
Requires that a_Src is a valid pointer. */

View File

@ -68,11 +68,11 @@ void cNBTChunkSerializer::Finish(void)
m_Writer.EndList();
}
// If light not valid, reset it to all zeroes:
// If light not valid, reset it to defaults:
if (!m_IsLightValid)
{
memset(m_BlockLight, 0, sizeof(m_BlockLight));
memset(m_BlockSkyLight, 0, sizeof(m_BlockSkyLight));
m_Data.FillBlockLight(0x00);
m_Data.FillSkyLight(0x0f);
}
// Check if "Entity" and "TileEntities" lists exists. MCEdit requires this.

View File

@ -1,4 +1,4 @@

// NBTChunkSerializer.h
// Declares the cNBTChunkSerializer class that is used for saving individual chunks into NBT format used by Anvil
@ -55,7 +55,7 @@ class cPainting;
class cNBTChunkSerializer :
public cChunkDataSeparateCollector
public cChunkDataCopyCollector
{
public:
cChunkDef::BiomeMap m_Biomes;
@ -69,15 +69,12 @@ public:
/** Close NBT tags that we've opened */
void Finish(void);
bool IsLightValid(void) const {return m_IsLightValid; }
bool IsLightValid(void) const { return m_IsLightValid; }
protected:
/* From cChunkDataSeparateCollector we inherit:
- m_BlockTypes[]
- m_BlockMetas[]
- m_BlockLight[]
- m_BlockSkyLight[] */
/* From cChunkDataCopyCollector we inherit:
- cChunkData m_Data */
cFastNBTWriter & m_Writer;

View File

@ -515,23 +515,25 @@ bool cWSSAnvil::SaveChunkToNBT(const cChunkCoords & a_Chunk, cFastNBTWriter & a_
// Save blockdata:
a_Writer.BeginList("Sections", TAG_Compound);
size_t SliceSizeBlock = cChunkDef::Width * cChunkDef::Width * 16;
size_t SliceSizeNibble = SliceSizeBlock / 2;
const char * BlockTypes = reinterpret_cast<const char *>(Serializer.m_BlockTypes);
const char * BlockMetas = reinterpret_cast<const char *>(Serializer.m_BlockMetas);
#ifdef DEBUG_SKYLIGHT
const char * BlockLight = reinterpret_cast<const char *>(Serializer.m_BlockSkyLight);
#else
const char * BlockLight = reinterpret_cast<const char *>(Serializer.m_BlockLight);
#endif
const char * BlockSkyLight = reinterpret_cast<const char *>(Serializer.m_BlockSkyLight);
for (int Y = 0; Y < 16; Y++)
for (size_t Y = 0; Y != cChunkData::NumSections; ++Y)
{
auto Section = Serializer.m_Data.GetSection(Y);
if (Section == nullptr)
{
continue;
}
a_Writer.BeginCompound("");
a_Writer.AddByteArray("Blocks", BlockTypes + static_cast<unsigned int>(Y) * SliceSizeBlock, SliceSizeBlock);
a_Writer.AddByteArray("Data", BlockMetas + static_cast<unsigned int>(Y) * SliceSizeNibble, SliceSizeNibble);
a_Writer.AddByteArray("SkyLight", BlockSkyLight + static_cast<unsigned int>(Y) * SliceSizeNibble, SliceSizeNibble);
a_Writer.AddByteArray("BlockLight", BlockLight + static_cast<unsigned int>(Y) * SliceSizeNibble, SliceSizeNibble);
a_Writer.AddByteArray("Blocks", reinterpret_cast<const char *>(Section->m_BlockTypes), ARRAYCOUNT(Section->m_BlockTypes));
a_Writer.AddByteArray("Data", reinterpret_cast<const char *>(Section->m_BlockMetas), ARRAYCOUNT(Section->m_BlockMetas));
#ifdef DEBUG_SKYLIGHT
a_Writer.AddByteArray("BlockLight", reinterpret_cast<const char *>(Section->m_BlockSkyLight), ARRAYCOUNT(Section->m_BlockSkyLight));
#else
a_Writer.AddByteArray("BlockLight", reinterpret_cast<const char *>(Section->m_BlockLight), ARRAYCOUNT(Section->m_BlockLight));
#endif
a_Writer.AddByteArray("SkyLight", reinterpret_cast<const char *>(Section->m_BlockSkyLight), ARRAYCOUNT(Section->m_BlockSkyLight));
a_Writer.AddByte("Y", static_cast<unsigned char>(Y));
a_Writer.EndCompound();
}