// ChunkDesc.cpp
// Implements the cChunkDesc class representing the chunk description used while generating a chunk. This class is also exported to Lua for HOOK_CHUNK_GENERATING.
#include "Globals.h"
#include "ChunkDesc.h"
#include "../BlockArea.h"
cChunkDesc::cChunkDesc(int a_ChunkX, int a_ChunkZ) :
m_ChunkX(a_ChunkX),
m_ChunkZ(a_ChunkZ),
m_bUseDefaultBiomes(true),
m_bUseDefaultHeight(true),
m_bUseDefaultComposition(true),
m_bUseDefaultStructures(true),
m_bUseDefaultFinish(true)
{
memset(m_BlockTypes, 0, sizeof(cChunkDef::BlockTypes));
memset(m_BlockMeta, 0, sizeof(cChunkDef::BlockNibbles));
memset(m_BiomeMap, 0, sizeof(cChunkDef::BiomeMap));
memset(m_HeightMap, 0, sizeof(cChunkDef::HeightMap));
}
cChunkDesc::~cChunkDesc()
{
// Nothing needed yet
}
void cChunkDesc::FillBlocks(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
{
const NIBBLETYPE CompressedMeta = a_BlockMeta | (a_BlockMeta << 4);
memset(m_BlockTypes, a_BlockType, sizeof(cChunkDef::BlockTypes));
memset(m_BlockMeta, CompressedMeta, sizeof(cChunkDef::BlockNibbles));
}
void cChunkDesc::SetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
{
int Index = cChunkDef::MakeIndex(a_RelX, a_RelY, a_RelZ);
cChunkDef::SetBlock(m_BlockTypes, Index, a_BlockType);
cChunkDef::SetNibble(m_BlockMeta, Index, a_BlockMeta);
}
void cChunkDesc::GetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta)
{
int Index = cChunkDef::MakeIndex(a_RelX, a_RelY, a_RelZ);
a_BlockType = cChunkDef::GetBlock(m_BlockTypes, Index);
a_BlockMeta = cChunkDef::GetNibble(m_BlockMeta, Index);
}
void cChunkDesc::SetBlockType(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType)
{
cChunkDef::SetBlock(m_BlockTypes, a_RelX, a_RelY, a_RelZ, a_BlockType);
}
BLOCKTYPE cChunkDesc::GetBlockType(int a_RelX, int a_RelY, int a_RelZ)
{
return cChunkDef::GetBlock(m_BlockTypes, a_RelX, a_RelY, a_RelZ);
}
NIBBLETYPE cChunkDesc::GetBlockMeta(int a_RelX, int a_RelY, int a_RelZ)
{
return cChunkDef::GetNibble(m_BlockMeta, a_RelX, a_RelY, a_RelZ);
}
void cChunkDesc::SetBlockMeta(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_BlockMeta)
{
cChunkDef::SetNibble(m_BlockMeta, a_RelX, a_RelY, a_RelZ, a_BlockMeta);
}
void cChunkDesc::SetBiome(int a_RelX, int a_RelZ, int a_BiomeID)
{
cChunkDef::SetBiome(m_BiomeMap, a_RelX, a_RelZ, (EMCSBiome)a_BiomeID);
}
EMCSBiome cChunkDesc::GetBiome(int a_RelX, int a_RelZ)
{
return cChunkDef::GetBiome(m_BiomeMap, a_RelX, a_RelZ);
}
void cChunkDesc::SetHeight(int a_RelX, int a_RelZ, int a_Height)
{
cChunkDef::SetHeight(m_HeightMap, a_RelX, a_RelZ, a_Height);
}
int cChunkDesc::GetHeight(int a_RelX, int a_RelZ)
{
return cChunkDef::GetHeight(m_HeightMap, a_RelX, a_RelZ);
}
void cChunkDesc::SetUseDefaultBiomes(bool a_bUseDefaultBiomes)
{
m_bUseDefaultBiomes = a_bUseDefaultBiomes;
}
bool cChunkDesc::IsUsingDefaultBiomes(void) const
{
return m_bUseDefaultBiomes;
}
void cChunkDesc::SetUseDefaultHeight(bool a_bUseDefaultHeight)
{
m_bUseDefaultHeight = a_bUseDefaultHeight;
}
bool cChunkDesc::IsUsingDefaultHeight(void) const
{
return m_bUseDefaultHeight;
}
void cChunkDesc::SetUseDefaultComposition(bool a_bUseDefaultComposition)
{
m_bUseDefaultComposition = a_bUseDefaultComposition;
}
bool cChunkDesc::IsUsingDefaultComposition(void) const
{
return m_bUseDefaultComposition;
}
void cChunkDesc::SetUseDefaultStructures(bool a_bUseDefaultStructures)
{
m_bUseDefaultStructures = a_bUseDefaultStructures;
}
bool cChunkDesc::IsUsingDefaultStructures(void) const
{
return m_bUseDefaultStructures;
}
void cChunkDesc::SetUseDefaultFinish(bool a_bUseDefaultFinish)
{
m_bUseDefaultFinish = a_bUseDefaultFinish;
}
bool cChunkDesc::IsUsingDefaultFinish(void) const
{
return m_bUseDefaultFinish;
}
void cChunkDesc::WriteBlockArea(const cBlockArea & a_BlockArea, int a_RelX, int a_RelY, int a_RelZ)
{
if (!a_BlockArea.HasBlockTypes() && !a_BlockArea.HasBlockMetas())
{
LOGWARNING("Request was made to write a block area without BlockTypes nor BlockMetas into cChunkDesc. Ignoring.");
return;
}
int BAOffX = std::max(0, -a_RelX); // Offset in BA where to start reading
int CDOffX = std::max(0, a_RelX); // Offset in CD where to start writing
int SizeX = std::min(a_BlockArea.GetSizeX() - BAOffX, cChunkDef::Width - CDOffX); // Number of slices to write
int BAOffY = std::max(0, -a_RelY); // Offset in BA where to start reading
int CDOffY = std::max(0, a_RelY); // Offset in CD where to start writing
int SizeY = std::min(a_BlockArea.GetSizeY() - BAOffY, cChunkDef::Height - CDOffY); // Number of layers to write
int BAOffZ = std::max(0, -a_RelZ); // Offset in BA where to start reading
int CDOffZ = std::max(0, a_RelZ); // Offset in CD where to start writing
int SizeZ = std::min(a_BlockArea.GetSizeZ() - BAOffZ, cChunkDef::Width - CDOffZ); // Number of slices to write
if (a_BlockArea.HasBlockTypes())
{
for (int y = 0; y < SizeY; y++)
{
int BAY = BAOffY + y;
int CDY = CDOffY + y;
for (int z = 0; z < SizeZ; z++)
{
int BAZ = BAOffZ + z;
int CDZ = CDOffZ + z;
for (int x = 0; x < SizeX; x++)
{
int BAX = BAOffX + x;
int CDX = BAOffX + x;
cChunkDef::SetBlock(m_BlockTypes, CDX, CDY, CDZ, a_BlockArea.GetRelBlockType(BAX, BAY, BAZ));
} // for x
} // for z
} // for y
} // HasBlockTypes()
if (a_BlockArea.HasBlockMetas())
{
for (int y = 0; y < SizeY; y++)
{
int BAY = BAOffY + y;
int CDY = CDOffY + y;
for (int z = 0; z < SizeZ; z++)
{
int BAZ = BAOffZ + z;
int CDZ = CDOffZ + z;
for (int x = 0; x < SizeX; x++)
{
int BAX = BAOffX + x;
int CDX = BAOffX + x;
cChunkDef::SetNibble(m_BlockMeta, CDX, CDY, CDZ, a_BlockArea.GetRelBlockMeta(BAX, BAY, BAZ));
} // for x
} // for z
} // for y
} // HasBlockMetas()
}
void cChunkDesc::ReadBlockArea(cBlockArea & a_Dest, int a_MinRelX, int a_MaxRelX, int a_MinRelY, int a_MaxRelY, int a_MinRelZ, int a_MaxRelZ)
{
// Normalize the coords:
if (a_MinRelX > a_MaxRelX)
{
std::swap(a_MinRelX, a_MaxRelX);
}
if (a_MinRelY > a_MaxRelY)
{
std::swap(a_MinRelY, a_MaxRelY);
}
if (a_MinRelZ > a_MaxRelZ)
{
std::swap(a_MinRelZ, a_MaxRelZ);
}
// Include the Max coords:
a_MaxRelX += 1;
a_MaxRelY += 1;
a_MaxRelZ += 1;
// Check coords validity:
if (a_MinRelX < 0)
{
LOGWARNING("%s: MinRelX less than zero, adjusting to zero", __FUNCTION__);
a_MinRelX = 0;
}
else if (a_MinRelX >= cChunkDef::Width)
{
LOGWARNING("%s: MinRelX more than chunk width, adjusting to chunk width", __FUNCTION__);
a_MinRelX = cChunkDef::Width - 1;
}
if (a_MaxRelX < 0)
{
LOGWARNING("%s: MaxRelX less than zero, adjusting to zero", __FUNCTION__);
a_MaxRelX = 0;
}
else if (a_MinRelX >= cChunkDef::Width)
{
LOGWARNING("%s: MaxRelX more than chunk width, adjusting to chunk width", __FUNCTION__);
a_MaxRelX = cChunkDef::Width - 1;
}
if (a_MinRelY < 0)
{
LOGWARNING("%s: MinRelY less than zero, adjusting to zero", __FUNCTION__);
a_MinRelY = 0;
}
else if (a_MinRelY >= cChunkDef::Height)
{
LOGWARNING("%s: MinRelY more than chunk height, adjusting to chunk height", __FUNCTION__);
a_MinRelY = cChunkDef::Height - 1;
}
if (a_MaxRelY < 0)
{
LOGWARNING("%s: MaxRelY less than zero, adjusting to zero", __FUNCTION__);
a_MaxRelY = 0;
}
else if (a_MinRelY >= cChunkDef::Height)
{
LOGWARNING("%s: MaxRelY more than chunk height, adjusting to chunk height", __FUNCTION__);
a_MaxRelY = cChunkDef::Height - 1;
}
if (a_MinRelZ < 0)
{
LOGWARNING("%s: MinRelZ less than zero, adjusting to zero", __FUNCTION__);
a_MinRelZ = 0;
}
else if (a_MinRelZ >= cChunkDef::Width)
{
LOGWARNING("%s: MinRelZ more than chunk width, adjusting to chunk width", __FUNCTION__);
a_MinRelZ = cChunkDef::Width - 1;
}
if (a_MaxRelZ < 0)
{
LOGWARNING("%s: MaxRelZ less than zero, adjusting to zero", __FUNCTION__);
a_MaxRelZ = 0;
}
else if (a_MinRelZ >= cChunkDef::Width)
{
LOGWARNING("%s: MaxRelZ more than chunk width, adjusting to chunk width", __FUNCTION__);
a_MaxRelZ = cChunkDef::Width - 1;
}
// Prepare the block area:
int SizeX = a_MaxRelX - a_MinRelX;
int SizeY = a_MaxRelY - a_MinRelY;
int SizeZ = a_MaxRelZ - a_MinRelZ;
a_Dest.Clear();
a_Dest.m_OriginX = m_ChunkX * cChunkDef::Width + a_MinRelX;
a_Dest.m_OriginY = a_MinRelY;
a_Dest.m_OriginZ = m_ChunkZ * cChunkDef::Width + a_MinRelZ;
a_Dest.SetSize(SizeX, SizeY, SizeZ, cBlockArea::baTypes | cBlockArea::baMetas);
for (int y = 0; y < SizeY; y++)
{
int CDY = a_MinRelY + y;
for (int z = 0; z < SizeZ; z++)
{
int CDZ = a_MinRelZ + z;
for (int x = 0; x < SizeX; x++)
{
int CDX = a_MinRelX + x;
BLOCKTYPE BlockType;
NIBBLETYPE BlockMeta;
GetBlockTypeMeta(CDX, CDY, CDZ, BlockType, BlockMeta);
a_Dest.SetRelBlockTypeMeta(x, y, z, BlockType, BlockMeta);
} // for x
} // for z
} // for y
}
