684 lines
15 KiB
C++
684 lines
15 KiB
C++
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// BlockArea.cpp
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// Implements the cBlockArea object representing an area of block data that can be queried from cWorld and then accessed again without further queries
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// The object also supports writing the blockdata back into cWorld, even into other coords
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#include "Globals.h"
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#include "BlockArea.h"
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#include "World.h"
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cBlockArea::cBlockArea(void) :
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m_SizeX(0),
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m_SizeY(0),
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m_SizeZ(0),
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m_BlockTypes(NULL),
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m_BlockMetas(NULL),
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m_BlockLight(NULL),
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m_BlockSkyLight(NULL)
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{
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}
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cBlockArea::~cBlockArea()
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{
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Clear();
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}
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void cBlockArea::Clear(void)
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{
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delete[] m_BlockTypes; m_BlockTypes = NULL;
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delete[] m_BlockMetas; m_BlockMetas = NULL;
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delete[] m_BlockLight; m_BlockLight = NULL;
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delete[] m_BlockSkyLight; m_BlockSkyLight = NULL;
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m_SizeX = 0;
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m_SizeY = 0;
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m_SizeZ = 0;
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}
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bool cBlockArea::Read(cWorld * a_World, int a_MinBlockX, int a_MaxBlockX, int a_MinBlockY, int a_MaxBlockY, int a_MinBlockZ, int a_MaxBlockZ, int a_DataTypes)
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{
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// Normalize the coords:
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if (a_MinBlockX > a_MaxBlockX)
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{
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std::swap(a_MinBlockX, a_MaxBlockX);
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}
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if (a_MinBlockY > a_MaxBlockY)
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{
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std::swap(a_MinBlockY, a_MaxBlockY);
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}
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if (a_MinBlockZ > a_MaxBlockZ)
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{
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std::swap(a_MinBlockZ, a_MaxBlockZ);
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}
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// Include the Max coords:
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a_MaxBlockX += 1;
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a_MaxBlockY += 1;
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a_MaxBlockZ += 1;
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// Check coords validity:
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if (a_MinBlockY < 0)
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{
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LOGWARNING("cBlockArea:Read(): MinBlockY less than zero, adjusting to zero");
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a_MinBlockY = 0;
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}
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else if (a_MinBlockY >= cChunkDef::Height)
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{
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LOGWARNING("cBlockArea::Read(): MinBlockY more than chunk height, adjusting to chunk height");
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a_MinBlockY = cChunkDef::Height - 1;
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}
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if (a_MaxBlockY < 0)
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{
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LOGWARNING("cBlockArea:Read(): MaxBlockY less than zero, adjusting to zero");
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a_MaxBlockY = 0;
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}
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else if (a_MinBlockY >= cChunkDef::Height)
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{
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LOGWARNING("cBlockArea::Read(): MaxBlockY more than chunk height, adjusting to chunk height");
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a_MaxBlockY = cChunkDef::Height - 1;
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}
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// Allocate the needed memory:
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Clear();
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if (!SetSize(a_MaxBlockX - a_MinBlockX, a_MaxBlockY - a_MinBlockY, a_MaxBlockZ - a_MinBlockZ, a_DataTypes))
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{
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return false;
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}
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m_OriginX = a_MinBlockX;
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m_OriginY = a_MinBlockY;
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m_OriginZ = a_MinBlockZ;
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cChunkReader Reader(*this);
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// Convert block coords to chunks coords:
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int MinChunkX, MaxChunkX;
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int MinChunkZ, MaxChunkZ;
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cChunkDef::AbsoluteToRelative(a_MinBlockX, a_MinBlockY, a_MinBlockZ, MinChunkX, MinChunkZ);
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cChunkDef::AbsoluteToRelative(a_MaxBlockX, a_MaxBlockY, a_MaxBlockZ, MaxChunkX, MaxChunkZ);
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// Query block data:
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if (!a_World->ForEachChunkInRect(MinChunkX, MaxChunkX, MinChunkZ, MaxChunkZ, Reader))
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{
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Clear();
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return false;
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}
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return true;
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}
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bool cBlockArea::Write(cWorld * a_World, int a_MinBlockX, int a_MinBlockY, int a_MinBlockZ, int a_DataTypes)
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{
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ASSERT((a_DataTypes & GetDataTypes()) == a_DataTypes); // Are you requesting only the data that I have?
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a_DataTypes = a_DataTypes & GetDataTypes(); // For release builds, silently cut off the datatypes that I don't have
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// Check coords validity:
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if (a_MinBlockY < 0)
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{
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LOGWARNING("cBlockArea:Read(): MinBlockY less than zero, adjusting to zero");
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a_MinBlockY = 0;
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}
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else if (a_MinBlockY >= cChunkDef::Height - m_SizeY)
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{
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LOGWARNING("cBlockArea::Read(): MinBlockY + m_SizeY more than chunk height, adjusting to chunk height");
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a_MinBlockY = cChunkDef::Height - m_SizeY - 1;
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}
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return a_World->WriteBlockArea(*this, a_MinBlockX, a_MinBlockY, a_MinBlockZ, a_DataTypes);
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}
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void cBlockArea::DumpToRawFile(const AString & a_FileName)
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{
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cFile f;
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if (!f.Open(a_FileName, cFile::fmWrite))
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{
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LOGWARNING("cBlockArea: Cannot open file \"%s\" for raw dump", a_FileName.c_str());
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return;
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}
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UInt32 SizeX = ntohl(m_SizeX);
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UInt32 SizeY = ntohl(m_SizeY);
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UInt32 SizeZ = ntohl(m_SizeZ);
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f.Write(&SizeX, 4);
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f.Write(&SizeY, 4);
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f.Write(&SizeZ, 4);
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unsigned char DataTypes = GetDataTypes();
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f.Write(&DataTypes, 1);
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int NumBlocks = GetBlockCount();
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if (HasBlockTypes())
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{
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f.Write(m_BlockTypes, NumBlocks * sizeof(BLOCKTYPE));
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}
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if (HasBlockMetas())
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{
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f.Write(m_BlockMetas, NumBlocks);
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}
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if (HasBlockLights())
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{
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f.Write(m_BlockLight, NumBlocks);
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}
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if (HasBlockSkyLights())
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{
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f.Write(m_BlockSkyLight, NumBlocks);
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}
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}
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void cBlockArea::SetRelBlockType(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType)
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{
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if (m_BlockTypes == NULL)
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{
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LOGWARNING("cBlockArea: BlockTypes have not been read!");
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return;
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}
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m_BlockTypes[MakeIndex(a_RelX, a_RelY, a_RelZ)] = a_BlockType;
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}
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void cBlockArea::SetBlockType(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType)
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{
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SetRelBlockType(a_BlockX - m_OriginX, a_BlockY - m_OriginY, a_BlockZ - m_OriginZ, a_BlockType);
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}
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void cBlockArea::SetRelBlockMeta(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_BlockMeta)
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{
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SetRelNibble(a_RelX, a_RelY, a_RelZ, a_BlockMeta, m_BlockMetas);
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}
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void cBlockArea::SetBlockMeta(int a_BlockX, int a_BlockY, int a_BlockZ, NIBBLETYPE a_BlockMeta)
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{
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SetNibble(a_BlockX, a_BlockY, a_BlockZ, a_BlockMeta, m_BlockMetas);
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}
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void cBlockArea::SetRelBlockLight(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_BlockLight)
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{
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SetRelNibble(a_RelX, a_RelY, a_RelZ, a_BlockLight, m_BlockLight);
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}
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void cBlockArea::SetBlockLight(int a_BlockX, int a_BlockY, int a_BlockZ, NIBBLETYPE a_BlockLight)
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{
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SetNibble(a_BlockX, a_BlockY, a_BlockZ, a_BlockLight, m_BlockLight);
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}
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void cBlockArea::SetRelBlockSkyLight(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_BlockSkyLight)
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{
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SetRelNibble(a_RelX, a_RelY, a_RelZ, a_BlockSkyLight, m_BlockSkyLight);
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}
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void cBlockArea::SetBlockSkyLight(int a_BlockX, int a_BlockY, int a_BlockZ, NIBBLETYPE a_BlockSkyLight)
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{
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SetNibble(a_BlockX, a_BlockY, a_BlockZ, a_BlockSkyLight, m_BlockSkyLight);
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}
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BLOCKTYPE cBlockArea::GetRelBlockType(int a_RelX, int a_RelY, int a_RelZ) const
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{
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if (m_BlockTypes == NULL)
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{
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LOGWARNING("cBlockArea: BlockTypes have not been read!");
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return E_BLOCK_AIR;
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}
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return m_BlockTypes[MakeIndex(a_RelX, a_RelY, a_RelZ)];
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}
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BLOCKTYPE cBlockArea::GetBlockType(int a_BlockX, int a_BlockY, int a_BlockZ) const
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{
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return GetRelBlockType(a_BlockX - m_OriginX, a_BlockY - m_OriginY, a_BlockZ - m_OriginZ);
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}
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NIBBLETYPE cBlockArea::GetRelBlockMeta(int a_RelX, int a_RelY, int a_RelZ) const
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{
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return GetRelNibble(a_RelX, a_RelY, a_RelZ, m_BlockMetas);
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}
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NIBBLETYPE cBlockArea::GetBlockMeta(int a_BlockX, int a_BlockY, int a_BlockZ) const
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{
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return GetNibble(a_BlockX, a_BlockY, a_BlockZ, m_BlockMetas);
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}
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NIBBLETYPE cBlockArea::GetRelBlockLight(int a_RelX, int a_RelY, int a_RelZ) const
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{
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return GetRelNibble(a_RelX, a_RelY, a_RelZ, m_BlockLight);
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}
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NIBBLETYPE cBlockArea::GetBlockLight(int a_BlockX, int a_BlockY, int a_BlockZ) const
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{
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return GetNibble(a_BlockX, a_BlockY, a_BlockZ, m_BlockLight);
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}
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NIBBLETYPE cBlockArea::GetRelBlockSkyLight(int a_RelX, int a_RelY, int a_RelZ) const
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{
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return GetRelNibble(a_RelX, a_RelY, a_RelZ, m_BlockSkyLight);
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}
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NIBBLETYPE cBlockArea::GetBlockSkyLight(int a_BlockX, int a_BlockY, int a_BlockZ) const
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{
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return GetNibble(a_BlockX, a_BlockY, a_BlockZ, m_BlockSkyLight);
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}
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int cBlockArea::GetDataTypes(void) const
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{
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int res = 0;
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if (m_BlockTypes != NULL)
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{
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res |= baTypes;
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}
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if (m_BlockMetas != NULL)
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{
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res |= baMetas;
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}
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if (m_BlockLight != NULL)
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{
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res |= baLight;
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}
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if (m_BlockSkyLight != NULL)
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{
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res |= baSkyLight;
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}
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return res;
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}
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bool cBlockArea::SetSize(int a_SizeX, int a_SizeY, int a_SizeZ, int a_DataTypes)
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{
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ASSERT(m_BlockTypes == NULL); // Has been cleared
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if (a_DataTypes & baTypes)
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{
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m_BlockTypes = new BLOCKTYPE[a_SizeX * a_SizeY * a_SizeZ];
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if (m_BlockTypes == NULL)
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{
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return false;
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}
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}
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if (a_DataTypes & baMetas)
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{
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m_BlockMetas = new NIBBLETYPE[a_SizeX * a_SizeY * a_SizeZ];
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if (m_BlockMetas == NULL)
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{
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delete[] m_BlockTypes;
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return false;
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}
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}
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if (a_DataTypes & baLight)
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{
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m_BlockLight = new NIBBLETYPE[a_SizeX * a_SizeY * a_SizeZ];
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if (m_BlockLight == NULL)
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{
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delete[] m_BlockMetas;
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delete[] m_BlockTypes;
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return false;
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}
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}
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if (a_DataTypes & baSkyLight)
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{
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m_BlockSkyLight = new NIBBLETYPE[a_SizeX * a_SizeY * a_SizeZ];
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if (m_BlockSkyLight == NULL)
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{
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delete[] m_BlockLight;
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delete[] m_BlockMetas;
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delete[] m_BlockTypes;
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return false;
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}
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}
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m_SizeX = a_SizeX;
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m_SizeY = a_SizeY;
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m_SizeZ = a_SizeZ;
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return true;
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}
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int cBlockArea::MakeIndex(int a_RelX, int a_RelY, int a_RelZ) const
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{
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return a_RelX + a_RelZ * m_SizeZ + a_RelY * m_SizeX * m_SizeZ;
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}
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void cBlockArea::SetRelNibble(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_Value, NIBBLETYPE * a_Array)
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{
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if (a_Array == NULL)
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{
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LOGWARNING("cBlockArea: datatype has not been read!");
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return;
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}
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a_Array[MakeIndex(a_RelX, a_RelY, a_RelZ)] = a_Value;
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}
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void cBlockArea::SetNibble(int a_BlockX, int a_BlockY, int a_BlockZ, NIBBLETYPE a_Value, NIBBLETYPE * a_Array)
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{
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SetRelNibble(a_BlockX - m_OriginX, a_BlockY - m_OriginY, a_BlockZ - m_OriginZ, a_Value, a_Array);
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}
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NIBBLETYPE cBlockArea::GetRelNibble(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE * a_Array) const
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{
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if (a_Array == NULL)
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{
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LOGWARNING("cBlockArea: datatype has not been read!");
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return 16;
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}
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return a_Array[MakeIndex(a_RelX, a_RelY, a_RelZ)];
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}
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NIBBLETYPE cBlockArea::GetNibble(int a_BlockX, int a_BlockY, int a_BlockZ, NIBBLETYPE * a_Array) const
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{
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return GetRelNibble(a_BlockX - m_OriginX, a_BlockY - m_OriginY, a_BlockZ - m_OriginZ, a_Array);
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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// cBlockArea::cChunkReader:
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cBlockArea::cChunkReader::cChunkReader(cBlockArea & a_Area) :
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m_Area(a_Area),
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m_OriginX(a_Area.m_OriginX),
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m_OriginY(a_Area.m_OriginY),
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m_OriginZ(a_Area.m_OriginZ)
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{
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}
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void cBlockArea::cChunkReader::CopyNibbles(NIBBLETYPE * a_AreaDst, const NIBBLETYPE * a_ChunkSrc)
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{
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int SizeY = m_Area.m_SizeY;
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int MinY = m_OriginY;
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// SizeX, SizeZ are the dmensions of the block data to copy from the current chunk (size of the geometric union)
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// OffX, OffZ are the offsets of the current chunk data from the area origin
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// BaseX, BaseZ are the offsets of the area data within the current chunk from the chunk borders
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int SizeX = cChunkDef::Width;
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int SizeZ = cChunkDef::Width;
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int OffX, OffZ;
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int BaseX, BaseZ;
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OffX = m_CurrentChunkX * cChunkDef::Width - m_OriginX;
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if (OffX < 0)
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{
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BaseX = -OffX;
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SizeX += OffX; // SizeX is decreased, OffX is negative
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OffX = 0;
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}
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else
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{
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BaseX = 0;
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}
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OffZ = m_CurrentChunkZ * cChunkDef::Width - m_OriginZ;
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if (OffZ < 0)
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{
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BaseZ = -OffZ;
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SizeZ += OffZ; // SizeZ is decreased, OffZ is negative
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OffZ = 0;
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}
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else
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{
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BaseZ = 0;
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}
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// If the chunk extends beyond the area in the X or Z axis, cut off the Size:
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if ((m_CurrentChunkX + 1) * cChunkDef::Width > m_OriginX + m_Area.m_SizeX)
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{
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SizeX -= (m_CurrentChunkX + 1) * cChunkDef::Width - (m_OriginX + m_Area.m_SizeX);
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}
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if ((m_CurrentChunkZ + 1) * cChunkDef::Width > m_OriginZ + m_Area.m_SizeZ)
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{
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SizeZ -= (m_CurrentChunkZ + 1) * cChunkDef::Width - (m_OriginZ + m_Area.m_SizeZ);
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}
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for (int y = 0; y < SizeY; y++)
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{
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int ChunkY = MinY + y;
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int AreaY = y;
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for (int z = 0; z < SizeZ; z++)
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{
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int ChunkZ = BaseZ + z;
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int AreaZ = OffZ + z;
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for (int x = 0; x < SizeX; x++)
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{
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int ChunkX = BaseX + x;
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int AreaX = OffX + x;
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a_AreaDst[m_Area.MakeIndex(AreaX, AreaY, AreaZ)] = cChunkDef::GetNibble(a_ChunkSrc, ChunkX, ChunkY, ChunkZ);
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} // for x
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} // for z
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} // for y
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}
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bool cBlockArea::cChunkReader::Coords(int a_ChunkX, int a_ChunkZ)
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{
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m_CurrentChunkX = a_ChunkX;
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m_CurrentChunkZ = a_ChunkZ;
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return true;
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}
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void cBlockArea::cChunkReader::BlockTypes(const BLOCKTYPE * a_BlockTypes)
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{
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if (m_Area.m_BlockTypes == NULL)
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{
|
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// Don't want BlockTypes
|
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return;
|
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}
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int SizeY = m_Area.m_SizeY;
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int MinY = m_OriginY;
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// SizeX, SizeZ are the dmensions of the block data to copy from the current chunk (size of the geometric union)
|
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// OffX, OffZ are the offsets of the current chunk data from the area origin
|
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// BaseX, BaseZ are the offsets of the area data within the current chunk from the chunk borders
|
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int SizeX = cChunkDef::Width;
|
|
int SizeZ = cChunkDef::Width;
|
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int OffX, OffZ;
|
|
int BaseX, BaseZ;
|
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OffX = m_CurrentChunkX * cChunkDef::Width - m_OriginX;
|
|
if (OffX < 0)
|
|
{
|
|
BaseX = -OffX;
|
|
SizeX += OffX; // SizeX is decreased, OffX is negative
|
|
OffX = 0;
|
|
}
|
|
else
|
|
{
|
|
BaseX = 0;
|
|
}
|
|
OffZ = m_CurrentChunkZ * cChunkDef::Width - m_OriginZ;
|
|
if (OffZ < 0)
|
|
{
|
|
BaseZ = -OffZ;
|
|
SizeZ += OffZ; // SizeZ is decreased, OffZ is negative
|
|
OffZ = 0;
|
|
}
|
|
else
|
|
{
|
|
BaseZ = 0;
|
|
}
|
|
// If the chunk extends beyond the area in the X or Z axis, cut off the Size:
|
|
if ((m_CurrentChunkX + 1) * cChunkDef::Width > m_OriginX + m_Area.m_SizeX)
|
|
{
|
|
SizeX -= (m_CurrentChunkX + 1) * cChunkDef::Width - (m_OriginX + m_Area.m_SizeX);
|
|
}
|
|
if ((m_CurrentChunkZ + 1) * cChunkDef::Width > m_OriginZ + m_Area.m_SizeZ)
|
|
{
|
|
SizeZ -= (m_CurrentChunkZ + 1) * cChunkDef::Width - (m_OriginZ + m_Area.m_SizeZ);
|
|
}
|
|
|
|
for (int y = 0; y < SizeY; y++)
|
|
{
|
|
int ChunkY = MinY + y;
|
|
int AreaY = y;
|
|
for (int z = 0; z < SizeZ; z++)
|
|
{
|
|
int ChunkZ = BaseZ + z;
|
|
int AreaZ = OffZ + z;
|
|
for (int x = 0; x < SizeX; x++)
|
|
{
|
|
int ChunkX = BaseX + x;
|
|
int AreaX = OffX + x;
|
|
m_Area.m_BlockTypes[m_Area.MakeIndex(AreaX, AreaY, AreaZ)] = cChunkDef::GetBlock(a_BlockTypes, ChunkX, ChunkY, ChunkZ);
|
|
} // for x
|
|
} // for z
|
|
} // for y
|
|
}
|
|
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|
|
void cBlockArea::cChunkReader::BlockMeta(const NIBBLETYPE * a_BlockMetas)
|
|
{
|
|
if (m_Area.m_BlockMetas == NULL)
|
|
{
|
|
// Don't want metas
|
|
return;
|
|
}
|
|
CopyNibbles(m_Area.m_BlockMetas, a_BlockMetas);
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void cBlockArea::cChunkReader::BlockLight(const NIBBLETYPE * a_BlockLight)
|
|
{
|
|
if (m_Area.m_BlockLight == NULL)
|
|
{
|
|
// Don't want light
|
|
return;
|
|
}
|
|
CopyNibbles(m_Area.m_BlockLight, a_BlockLight);
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void cBlockArea::cChunkReader::BlockSkyLight(const NIBBLETYPE * a_BlockSkyLight)
|
|
{
|
|
if (m_Area.m_BlockSkyLight == NULL)
|
|
{
|
|
// Don't want skylight
|
|
return;
|
|
}
|
|
CopyNibbles(m_Area.m_BlockSkyLight, a_BlockSkyLight);
|
|
}
|
|
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