void cBlockArea::Merge(const cBlockArea & a_Src, int a_RelX, int a_RelY, int a_RelZ, eMergeStrategy a_Strategy)
{
// Block types are compulsory, block metas are voluntary
if (!HasBlockTypes() || !a_Src.HasBlockTypes())
{
LOGWARNING("%s: cannot merge because one of the areas doesn't have blocktypes.", __FUNCTION__);
return;
}
// Dst is *this, Src is a_Src
int SrcOffX = std::max(0, -a_RelX); // Offset in Src where to start reading
int DstOffX = std::max(0, a_RelX); // Offset in Dst where to start writing
int SizeX = std::min(a_Src.GetSizeX() - SrcOffX, GetSizeX() - DstOffX); // How many blocks to copy
int SrcOffY = std::max(0, -a_RelY); // Offset in Src where to start reading
int DstOffY = std::max(0, a_RelY); // Offset in Dst where to start writing
int SizeY = std::min(a_Src.GetSizeY() - SrcOffY, GetSizeY() - DstOffY); // How many blocks to copy
int SrcOffZ = std::max(0, -a_RelZ); // Offset in Src where to start reading
int DstOffZ = std::max(0, a_RelZ); // Offset in Dst where to start writing
int SizeZ = std::min(a_Src.GetSizeZ() - SrcOffZ, GetSizeZ() - DstOffZ); // How many blocks to copy
const NIBBLETYPE * SrcMetas = a_Src.GetBlockMetas();
NIBBLETYPE * DstMetas = m_BlockMetas;
bool IsDummyMetas = ((SrcMetas == NULL) || (DstMetas == NULL));
if (IsDummyMetas)
{
SrcMetas = new NIBBLETYPE[a_Src.GetBlockCount()];
DstMetas = new NIBBLETYPE[GetBlockCount()];
}
switch (a_Strategy)
{
case msOverwrite:
{
InternalMergeBlocks(
m_BlockTypes, a_Src.GetBlockTypes(),
DstMetas, SrcMetas,
SizeX, SizeY, SizeZ,
SrcOffX, SrcOffY, SrcOffZ,
DstOffX, DstOffY, DstOffZ,
a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(),
m_SizeX, m_SizeY, m_SizeZ,
MergeCombinatorOverwrite
);
break;
} // case msOverwrite
case msFillAir:
{
InternalMergeBlocks(
m_BlockTypes, a_Src.GetBlockTypes(),
DstMetas, SrcMetas,
SizeX, SizeY, SizeZ,
SrcOffX, SrcOffY, SrcOffZ,
DstOffX, DstOffY, DstOffZ,
a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(),
m_SizeX, m_SizeY, m_SizeZ,
MergeCombinatorFillAir
);
break;
} // case msFillAir
case msImprint:
{
InternalMergeBlocks(
m_BlockTypes, a_Src.GetBlockTypes(),
DstMetas, SrcMetas,
SizeX, SizeY, SizeZ,
SrcOffX, SrcOffY, SrcOffZ,
DstOffX, DstOffY, DstOffZ,
a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(),
m_SizeX, m_SizeY, m_SizeZ,
MergeCombinatorImprint
);
break;
} // case msImprint
case msLake:
{
InternalMergeBlocks(
m_BlockTypes, a_Src.GetBlockTypes(),
DstMetas, SrcMetas,
SizeX, SizeY, SizeZ,
SrcOffX, SrcOffY, SrcOffZ,
DstOffX, DstOffY, DstOffZ,
a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(),
m_SizeX, m_SizeY, m_SizeZ,
MergeCombinatorLake
);
break;
} // case msLake
default:
{
LOGWARNING("Unknown block area merge strategy: %d", a_Strategy);
ASSERT(!"Unknown block area merge strategy");
break;
}
} // switch (a_Strategy)
if (IsDummyMetas)
{
delete[] SrcMetas;
delete[] DstMetas;
}
}
void cBlockArea::MergeByStrategy(const cBlockArea & a_Src, int a_RelX, int a_RelY, int a_RelZ, eMergeStrategy a_Strategy, const NIBBLETYPE * SrcMetas, NIBBLETYPE * DstMetas)
{
// Block types are compulsory, block metas are voluntary
if (!HasBlockTypes() || !a_Src.HasBlockTypes())
{
LOGWARNING("%s: cannot merge because one of the areas doesn't have blocktypes.", __FUNCTION__);
return;
}
// Dst is *this, Src is a_Src
int SrcOffX = std::max(0, -a_RelX); // Offset in Src where to start reading
int DstOffX = std::max(0, a_RelX); // Offset in Dst where to start writing
int SizeX = std::min(a_Src.GetSizeX() - SrcOffX, GetSizeX() - DstOffX); // How many blocks to copy
int SrcOffY = std::max(0, -a_RelY); // Offset in Src where to start reading
int DstOffY = std::max(0, a_RelY); // Offset in Dst where to start writing
int SizeY = std::min(a_Src.GetSizeY() - SrcOffY, GetSizeY() - DstOffY); // How many blocks to copy
int SrcOffZ = std::max(0, -a_RelZ); // Offset in Src where to start reading
int DstOffZ = std::max(0, a_RelZ); // Offset in Dst where to start writing
int SizeZ = std::min(a_Src.GetSizeZ() - SrcOffZ, GetSizeZ() - DstOffZ); // How many blocks to copy
switch (a_Strategy)
{
case cBlockArea::msOverwrite:
{
InternalMergeBlocks<MetasValid, MergeCombinatorOverwrite<MetasValid> >(
m_BlockTypes, a_Src.GetBlockTypes(),
DstMetas, SrcMetas,
SizeX, SizeY, SizeZ,
SrcOffX, SrcOffY, SrcOffZ,
DstOffX, DstOffY, DstOffZ,
a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(),
m_Size.x, m_Size.y, m_Size.z
);
return;
} // case msOverwrite
case cBlockArea::msFillAir:
{
InternalMergeBlocks<MetasValid, MergeCombinatorFillAir<MetasValid> >(
m_BlockTypes, a_Src.GetBlockTypes(),
DstMetas, SrcMetas,
SizeX, SizeY, SizeZ,
SrcOffX, SrcOffY, SrcOffZ,
DstOffX, DstOffY, DstOffZ,
a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(),
m_Size.x, m_Size.y, m_Size.z
);
return;
} // case msFillAir
case cBlockArea::msImprint:
{
InternalMergeBlocks<MetasValid, MergeCombinatorImprint<MetasValid> >(
m_BlockTypes, a_Src.GetBlockTypes(),
DstMetas, SrcMetas,
SizeX, SizeY, SizeZ,
SrcOffX, SrcOffY, SrcOffZ,
DstOffX, DstOffY, DstOffZ,
a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(),
m_Size.x, m_Size.y, m_Size.z
);
return;
} // case msImprint
case cBlockArea::msLake:
{
InternalMergeBlocks<MetasValid, MergeCombinatorLake<MetasValid> >(
m_BlockTypes, a_Src.GetBlockTypes(),
DstMetas, SrcMetas,
SizeX, SizeY, SizeZ,
SrcOffX, SrcOffY, SrcOffZ,
DstOffX, DstOffY, DstOffZ,
a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(),
m_Size.x, m_Size.y, m_Size.z
);
return;
} // case msLake
case cBlockArea::msSpongePrint:
{
InternalMergeBlocks<MetasValid, MergeCombinatorSpongePrint<MetasValid> >(
m_BlockTypes, a_Src.GetBlockTypes(),
DstMetas, SrcMetas,
SizeX, SizeY, SizeZ,
SrcOffX, SrcOffY, SrcOffZ,
DstOffX, DstOffY, DstOffZ,
a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(),
m_Size.x, m_Size.y, m_Size.z
);
return;
} // case msSpongePrint
case cBlockArea::msDifference:
{
InternalMergeBlocks<MetasValid, MergeCombinatorDifference<MetasValid> >(
m_BlockTypes, a_Src.GetBlockTypes(),
DstMetas, SrcMetas,
SizeX, SizeY, SizeZ,
SrcOffX, SrcOffY, SrcOffZ,
DstOffX, DstOffY, DstOffZ,
a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(),
m_Size.x, m_Size.y, m_Size.z
);
return;
} // case msDifference
case cBlockArea::msMask:
{
InternalMergeBlocks<MetasValid, MergeCombinatorMask<MetasValid> >(
m_BlockTypes, a_Src.GetBlockTypes(),
DstMetas, SrcMetas,
SizeX, SizeY, SizeZ,
SrcOffX, SrcOffY, SrcOffZ,
DstOffX, DstOffY, DstOffZ,
a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(),
m_Size.x, m_Size.y, m_Size.z
);
return;
} // case msMask
} // switch (a_Strategy)
LOGWARNING("Unknown block area merge strategy: %d", a_Strategy);
ASSERT(!"Unknown block area merge strategy");
return;
}