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BlockArea.cpp
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2943 lines (2325 loc) · 66.9 KB
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// BlockArea.cpp
// NOTE: compile.sh checks for this file in order to determine if this is the Cuberite folder.
// Please modify compile.sh if you want to rename or remove this file.
// This file was chosen arbitrarily and it's a good enough indicator we're in the Cuberite folder.
// Implements the cBlockArea object representing an area of block data that can be queried from cWorld and then accessed again without further queries
// The object also supports writing the blockdata back into cWorld, even into other coords
#include "Globals.h"
#include "BlockArea.h"
#include "OSSupport/GZipFile.h"
#include "Blocks/BlockHandler.h"
#include "ChunkData.h"
#include "BlockEntities/BlockEntity.h"
#include "Item.h"
#include "BlockInfo.h"
// Disable MSVC warnings: "conditional expression is constant"
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable:4127)
#endif
typedef void (CombinatorFunc)(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta);
/** Merges two blocktypes and blockmetas of the specified sizes and offsets using the specified combinator function
This wild construct allows us to pass a function argument and still have it inlined by the compiler. */
template <bool MetasValid, CombinatorFunc Combinator>
void InternalMergeBlocks(
BLOCKTYPE * a_DstTypes, const BLOCKTYPE * a_SrcTypes,
NIBBLETYPE * a_DstMetas, const NIBBLETYPE * a_SrcMetas,
int a_SizeX, int a_SizeY, int a_SizeZ,
int a_SrcOffX, int a_SrcOffY, int a_SrcOffZ,
int a_DstOffX, int a_DstOffY, int a_DstOffZ,
int a_SrcSizeX, int a_SrcSizeY, int a_SrcSizeZ,
int a_DstSizeX, int a_DstSizeY, int a_DstSizeZ
)
{
UNUSED(a_SrcSizeY);
UNUSED(a_DstSizeY);
for (int y = 0; y < a_SizeY; y++)
{
int SrcBaseY = (y + a_SrcOffY) * a_SrcSizeX * a_SrcSizeZ;
int DstBaseY = (y + a_DstOffY) * a_DstSizeX * a_DstSizeZ;
for (int z = 0; z < a_SizeZ; z++)
{
int SrcBaseZ = SrcBaseY + (z + a_SrcOffZ) * a_SrcSizeX;
int DstBaseZ = DstBaseY + (z + a_DstOffZ) * a_DstSizeX;
int SrcIdx = SrcBaseZ + a_SrcOffX;
int DstIdx = DstBaseZ + a_DstOffX;
for (int x = 0; x < a_SizeX; x++)
{
if (MetasValid)
{
Combinator(a_DstTypes[DstIdx], a_SrcTypes[SrcIdx], a_DstMetas[DstIdx], a_SrcMetas[SrcIdx]);
}
else
{
NIBBLETYPE FakeDestMeta = 0;
Combinator(a_DstTypes[DstIdx], a_SrcTypes[SrcIdx], FakeDestMeta, static_cast<NIBBLETYPE>(0));
}
++DstIdx;
++SrcIdx;
} // for x
} // for z
} // for y
}
/** Combinator used for cBlockArea::msOverwrite merging */
template <bool MetaValid>
void MergeCombinatorOverwrite(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
{
a_DstType = a_SrcType;
if (MetaValid)
{
a_DstMeta = a_SrcMeta;
}
}
/** Combinator used for cBlockArea::msFillAir merging */
template <bool MetaValid>
void MergeCombinatorFillAir(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
{
if (a_DstType == E_BLOCK_AIR)
{
a_DstType = a_SrcType;
if (MetaValid)
{
a_DstMeta = a_SrcMeta;
}
}
// "else" is the default, already in place
}
/** Combinator used for cBlockArea::msImprint merging */
template <bool MetaValid>
void MergeCombinatorImprint(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
{
if (a_SrcType != E_BLOCK_AIR)
{
a_DstType = a_SrcType;
if (MetaValid)
{
a_DstMeta = a_SrcMeta;
}
}
// "else" is the default, already in place
}
/** Combinator used for cBlockArea::msLake merging */
template <bool MetaValid>
void MergeCombinatorLake(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
{
// Sponge is the NOP block
if (a_SrcType == E_BLOCK_SPONGE)
{
return;
}
// Air is always hollowed out
if (a_SrcType == E_BLOCK_AIR)
{
a_DstType = E_BLOCK_AIR;
if (MetaValid)
{
a_DstMeta = 0;
}
return;
}
// Water and lava are never overwritten
switch (a_DstType)
{
case E_BLOCK_WATER:
case E_BLOCK_STATIONARY_WATER:
case E_BLOCK_LAVA:
case E_BLOCK_STATIONARY_LAVA:
{
return;
}
}
// Water and lava always overwrite
switch (a_SrcType)
{
case E_BLOCK_WATER:
case E_BLOCK_STATIONARY_WATER:
case E_BLOCK_LAVA:
case E_BLOCK_STATIONARY_LAVA:
{
a_DstType = a_SrcType;
if (MetaValid)
{
a_DstMeta = a_SrcMeta;
}
return;
}
}
if (a_SrcType == E_BLOCK_STONE)
{
switch (a_DstType)
{
case E_BLOCK_DIRT:
case E_BLOCK_GRASS:
case E_BLOCK_MYCELIUM:
{
a_DstType = E_BLOCK_STONE;
if (MetaValid)
{
a_DstMeta = 0;
}
return;
}
}
}
// Everything else is left as it is
}
/** Combinator used for cBlockArea::msSpongePrint merging */
template <bool MetaValid>
void MergeCombinatorSpongePrint(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
{
// Sponge overwrites nothing, everything else overwrites anything
if (a_SrcType != E_BLOCK_SPONGE)
{
a_DstType = a_SrcType;
if (MetaValid)
{
a_DstMeta = a_SrcMeta;
}
}
}
/** Combinator used for cBlockArea::msDifference merging */
template <bool MetaValid>
void MergeCombinatorDifference(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
{
if ((a_DstType == a_SrcType) && (!MetaValid || (a_DstMeta == a_SrcMeta)))
{
a_DstType = E_BLOCK_AIR;
if (MetaValid)
{
a_DstMeta = 0;
}
}
else
{
a_DstType = a_SrcType;
if (MetaValid)
{
a_DstMeta = a_SrcMeta;
}
}
}
/** Combinator used for cBlockArea::msSimpleCompare merging */
template <bool MetaValid>
void MergeCombinatorSimpleCompare(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
{
if ((a_DstType == a_SrcType) && (!MetaValid || (a_DstMeta == a_SrcMeta)))
{
// The blocktypes are the same, and the blockmetas are not present or are the same
a_DstType = E_BLOCK_AIR;
}
else
{
// The blocktypes or blockmetas differ
a_DstType = E_BLOCK_STONE;
}
}
/** Combinator used for cBlockArea::msMask merging */
template <bool MetaValid>
void MergeCombinatorMask(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
{
// If the blocks are the same, keep the dest; otherwise replace with air
if ((a_SrcType != a_DstType) || !MetaValid || (a_SrcMeta != a_DstMeta))
{
a_DstType = E_BLOCK_AIR;
if (MetaValid)
{
a_DstMeta = 0;
}
}
}
// Re-enable previously disabled MSVC warnings
#ifdef _MSC_VER
#pragma warning(pop)
#endif
////////////////////////////////////////////////////////////////////////////////
// cBlockArea:
cBlockArea::cBlockArea(void) = default;
bool cBlockArea::IsValidDataTypeCombination(int a_DataTypes)
{
// BlockEntities require that BlockTypes be present, too
if ((a_DataTypes & baBlockEntities) != 0)
{
if ((a_DataTypes & baTypes) == 0)
{
return false;
}
}
// All other combinations are considered valid
return true;
}
void cBlockArea::Clear(void)
{
m_BlockTypes.reset();
m_BlockMetas.reset();
m_BlockLight.reset();
m_BlockSkyLight.reset();
m_BlockEntities.reset();
m_Origin.Set(0, 0, 0);
m_Size.Set(0, 0, 0);
}
void cBlockArea::Create(int a_SizeX, int a_SizeY, int a_SizeZ, int a_DataTypes)
{
ASSERT(a_SizeX > 0);
ASSERT(a_SizeY > 0);
ASSERT(a_SizeZ > 0);
ASSERT(IsValidDataTypeCombination(a_DataTypes));
// Warn if the height is too much, but proceed with the creation:
if (a_SizeY > cChunkDef::Height)
{
LOGWARNING("Creating a cBlockArea with height larger than world height (%d). Continuing, but the area may misbehave.", a_SizeY);
}
Clear();
SetSize(a_SizeX, a_SizeY, a_SizeZ, a_DataTypes);
Fill(a_DataTypes, E_BLOCK_AIR);
}
void cBlockArea::Create(const Vector3i & a_Size, int a_DataTypes)
{
Create(a_Size.x, a_Size.y, a_Size.z, a_DataTypes);
}
void cBlockArea::SetWEOffset(int a_OffsetX, int a_OffsetY, int a_OffsetZ)
{
m_WEOffset.Set(a_OffsetX, a_OffsetY, a_OffsetZ);
}
void cBlockArea::SetWEOffset(const Vector3i & a_Offset)
{
m_WEOffset.Set(a_Offset.x, a_Offset.y, a_Offset.z);
}
void cBlockArea::SetOrigin(int a_OriginX, int a_OriginY, int a_OriginZ)
{
m_Origin.Set(a_OriginX, a_OriginY, a_OriginZ);
}
void cBlockArea::SetOrigin(const Vector3i & a_Origin)
{
m_Origin.Set(a_Origin.x, a_Origin.y, a_Origin.z);
}
bool cBlockArea::IsValidRelCoords(int a_RelX, int a_RelY, int a_RelZ) const
{
return (
(a_RelX >= 0) && (a_RelX < m_Size.x) &&
(a_RelY >= 0) && (a_RelY < m_Size.y) &&
(a_RelZ >= 0) && (a_RelZ < m_Size.z)
);
}
bool cBlockArea::IsValidRelCoords(const Vector3i & a_RelCoords) const
{
return IsValidRelCoords(a_RelCoords.x, a_RelCoords.y, a_RelCoords.z);
}
bool cBlockArea::IsValidCoords(int a_BlockX, int a_BlockY, int a_BlockZ) const
{
return IsValidRelCoords(a_BlockX - m_Origin.x, a_BlockY - m_Origin.y, a_BlockZ - m_Origin.z);
}
bool cBlockArea::IsValidCoords(const Vector3i & a_Coords) const
{
return IsValidRelCoords(a_Coords - m_Origin);
}
bool cBlockArea::Read(cForEachChunkProvider & a_ForEachChunkProvider, int a_MinBlockX, int a_MaxBlockX, int a_MinBlockY, int a_MaxBlockY, int a_MinBlockZ, int a_MaxBlockZ, int a_DataTypes)
{
ASSERT(IsValidDataTypeCombination(a_DataTypes));
ASSERT(cChunkDef::IsValidHeight({a_MinBlockX, a_MinBlockY, a_MinBlockZ}));
ASSERT(cChunkDef::IsValidHeight({a_MaxBlockX, a_MaxBlockY, a_MaxBlockZ}));
ASSERT(a_MinBlockX <= a_MaxBlockX);
ASSERT(a_MinBlockY <= a_MaxBlockY);
ASSERT(a_MinBlockZ <= a_MaxBlockZ);
// Include the Max coords:
a_MaxBlockX += 1;
a_MaxBlockY += 1;
a_MaxBlockZ += 1;
// Allocate the needed memory:
Clear();
if (!SetSize(a_MaxBlockX - a_MinBlockX, a_MaxBlockY - a_MinBlockY, a_MaxBlockZ - a_MinBlockZ, a_DataTypes))
{
return false;
}
m_Origin.Set(a_MinBlockX, a_MinBlockY, a_MinBlockZ);
cChunkReader Reader(*this);
// Convert block coords to chunks coords:
int MinChunkX, MaxChunkX;
int MinChunkZ, MaxChunkZ;
cChunkDef::AbsoluteToRelative(a_MinBlockX, a_MinBlockY, a_MinBlockZ, MinChunkX, MinChunkZ);
cChunkDef::AbsoluteToRelative(a_MaxBlockX, a_MaxBlockY, a_MaxBlockZ, MaxChunkX, MaxChunkZ);
// Query block data:
if (!a_ForEachChunkProvider.ForEachChunkInRect(MinChunkX, MaxChunkX, MinChunkZ, MaxChunkZ, Reader))
{
Clear();
return false;
}
return true;
}
bool cBlockArea::Read(cForEachChunkProvider & a_ForEachChunkProvider, const cCuboid & a_Bounds, int a_DataTypes)
{
return Read(
a_ForEachChunkProvider,
a_Bounds.p1.x, a_Bounds.p2.x,
a_Bounds.p1.y, a_Bounds.p2.y,
a_Bounds.p1.z, a_Bounds.p2.z,
a_DataTypes
);
}
bool cBlockArea::Read(cForEachChunkProvider & a_ForEachChunkProvider, const Vector3i & a_Point1, const Vector3i & a_Point2, int a_DataTypes)
{
return Read(
a_ForEachChunkProvider,
a_Point1.x, a_Point2.x,
a_Point1.y, a_Point2.y,
a_Point1.z, a_Point2.z,
a_DataTypes
);
}
bool cBlockArea::Write(cForEachChunkProvider & a_ForEachChunkProvider, int a_MinBlockX, int a_MinBlockY, int a_MinBlockZ, int a_DataTypes)
{
ASSERT((a_DataTypes & GetDataTypes()) == a_DataTypes); // Are you requesting only the data that I have?
ASSERT(cChunkDef::IsValidHeight({a_MinBlockX, a_MinBlockY, a_MinBlockZ}));
ASSERT(cChunkDef::IsValidHeight({a_MinBlockX, a_MinBlockY + m_Size.y - 1, a_MinBlockZ}));
return a_ForEachChunkProvider.WriteBlockArea(*this, a_MinBlockX, a_MinBlockY, a_MinBlockZ, a_DataTypes);
}
bool cBlockArea::Write(cForEachChunkProvider & a_ForEachChunkProvider, const Vector3i & a_MinCoords, int a_DataTypes)
{
return Write(
a_ForEachChunkProvider,
a_MinCoords.x, a_MinCoords.y, a_MinCoords.z,
a_DataTypes
);
}
void cBlockArea::CopyTo(cBlockArea & a_Into) const
{
if (&a_Into == this)
{
LOGWARNING("Trying to copy a cBlockArea into self, ignoring.");
return;
}
a_Into.Clear();
a_Into.SetSize(m_Size.x, m_Size.y, m_Size.z, GetDataTypes());
a_Into.m_Origin = m_Origin;
size_t BlockCount = GetBlockCount();
if (HasBlockTypes())
{
memcpy(a_Into.GetBlockTypes(), GetBlockTypes(), BlockCount * sizeof(BLOCKTYPE));
}
if (HasBlockMetas())
{
memcpy(a_Into.GetBlockMetas(), GetBlockMetas(), BlockCount * sizeof(NIBBLETYPE));
}
if (HasBlockLights())
{
memcpy(a_Into.GetBlockLight(), GetBlockLight(), BlockCount * sizeof(NIBBLETYPE));
}
if (HasBlockSkyLights())
{
memcpy(a_Into.GetBlockSkyLight(), GetBlockSkyLight(), BlockCount * sizeof(NIBBLETYPE));
}
if (HasBlockEntities())
{
a_Into.m_BlockEntities->clear();
for (const auto & keyPair: *m_BlockEntities)
{
const auto & pos = keyPair.second->GetPos();
a_Into.m_BlockEntities->emplace(keyPair.first, keyPair.second->Clone(pos));
}
}
}
void cBlockArea::CopyFrom(const cBlockArea & a_From)
{
a_From.CopyTo(*this);
}
void cBlockArea::DumpToRawFile(const AString & a_FileName)
{
cFile f;
if (!f.Open(a_FileName, cFile::fmWrite))
{
LOGWARNING("cBlockArea: Cannot open file \"%s\" for raw dump", a_FileName.c_str());
return;
}
UInt32 SizeX = ntohl(static_cast<UInt32>(m_Size.x));
UInt32 SizeY = ntohl(static_cast<UInt32>(m_Size.y));
UInt32 SizeZ = ntohl(static_cast<UInt32>(m_Size.z));
f.Write(&SizeX, 4);
f.Write(&SizeY, 4);
f.Write(&SizeZ, 4);
unsigned char DataTypes = static_cast<unsigned char>(GetDataTypes());
f.Write(&DataTypes, 1);
size_t NumBlocks = GetBlockCount();
if (HasBlockTypes())
{
f.Write(GetBlockTypes(), NumBlocks * sizeof(BLOCKTYPE));
}
if (HasBlockMetas())
{
f.Write(GetBlockMetas(), NumBlocks);
}
if (HasBlockLights())
{
f.Write(GetBlockLight(), NumBlocks);
}
if (HasBlockSkyLights())
{
f.Write(GetBlockSkyLight(), NumBlocks);
}
}
void cBlockArea::Crop(int a_AddMinX, int a_SubMaxX, int a_AddMinY, int a_SubMaxY, int a_AddMinZ, int a_SubMaxZ)
{
if (
(a_AddMinX + a_SubMaxX >= m_Size.x) ||
(a_AddMinY + a_SubMaxY >= m_Size.y) ||
(a_AddMinZ + a_SubMaxZ >= m_Size.z)
)
{
LOGWARNING("cBlockArea:Crop called with more croping than the dimensions: %d x %d x %d with cropping %d, %d and %d",
m_Size.x, m_Size.y, m_Size.z,
a_AddMinX + a_SubMaxX, a_AddMinY + a_SubMaxY, a_AddMinZ + a_SubMaxZ
);
return;
}
if (HasBlockTypes())
{
CropBlockTypes(a_AddMinX, a_SubMaxX, a_AddMinY, a_SubMaxY, a_AddMinZ, a_SubMaxZ);
}
if (HasBlockMetas())
{
CropNibbles(m_BlockMetas, a_AddMinX, a_SubMaxX, a_AddMinY, a_SubMaxY, a_AddMinZ, a_SubMaxZ);
}
if (HasBlockLights())
{
CropNibbles(m_BlockLight, a_AddMinX, a_SubMaxX, a_AddMinY, a_SubMaxY, a_AddMinZ, a_SubMaxZ);
}
if (HasBlockSkyLights())
{
CropNibbles(m_BlockSkyLight, a_AddMinX, a_SubMaxX, a_AddMinY, a_SubMaxY, a_AddMinZ, a_SubMaxZ);
}
if (HasBlockEntities())
{
const Vector3i AddMin{ a_AddMinX, a_AddMinY, a_AddMinZ };
const cCuboid CropBox{ AddMin, m_Size - Vector3i{a_SubMaxX, a_SubMaxY, a_SubMaxZ} };
// Move and crop block Entities:
cBlockEntities oldBE;
std::swap(oldBE, *m_BlockEntities);
for (auto & keyPair: oldBE)
{
auto & be = keyPair.second;
auto Pos = be->GetPos();
if (CropBox.IsInside(Pos))
{
// The block entity is within the new coords, recalculate its coords to match the new area:
Pos -= AddMin;
be->SetPos(Pos);
m_BlockEntities->emplace(MakeIndex(Pos.x, Pos.y, Pos.z), std::move(be));
}
}
}
m_Origin.Move(a_AddMinX, a_AddMinY, a_AddMinZ);
m_Size.x -= a_AddMinX + a_SubMaxX;
m_Size.y -= a_AddMinY + a_SubMaxY;
m_Size.z -= a_AddMinZ + a_SubMaxZ;
}
void cBlockArea::Expand(int a_SubMinX, int a_AddMaxX, int a_SubMinY, int a_AddMaxY, int a_SubMinZ, int a_AddMaxZ)
{
if (HasBlockTypes())
{
ExpandBlockTypes(a_SubMinX, a_AddMaxX, a_SubMinY, a_AddMaxY, a_SubMinZ, a_AddMaxZ);
}
if (HasBlockMetas())
{
ExpandNibbles(m_BlockMetas, a_SubMinX, a_AddMaxX, a_SubMinY, a_AddMaxY, a_SubMinZ, a_AddMaxZ);
}
if (HasBlockLights())
{
ExpandNibbles(m_BlockLight, a_SubMinX, a_AddMaxX, a_SubMinY, a_AddMaxY, a_SubMinZ, a_AddMaxZ);
}
if (HasBlockSkyLights())
{
ExpandNibbles(m_BlockSkyLight, a_SubMinX, a_AddMaxX, a_SubMinY, a_AddMaxY, a_SubMinZ, a_AddMaxZ);
}
if (HasBlockEntities())
{
// Move block entities:
cBlockEntities oldBE;
std::swap(oldBE, *m_BlockEntities);
for (auto & keyPair: oldBE)
{
auto & be = keyPair.second;
auto posX = be->GetPosX() + a_SubMinX;
auto posY = be->GetPosY() + a_SubMinY;
auto posZ = be->GetPosZ() + a_SubMinZ;
be->SetPos({posX, posY, posZ});
m_BlockEntities->emplace(MakeIndex(posX, posY, posZ), std::move(be));
}
}
m_Origin.Move(-a_SubMinX, -a_SubMinY, -a_SubMinZ);
m_Size.x += a_SubMinX + a_AddMaxX;
m_Size.y += a_SubMinY + a_AddMaxY;
m_Size.z += a_SubMinZ + a_AddMaxZ;
}
void cBlockArea::Merge(const cBlockArea & a_Src, int a_RelX, int a_RelY, int a_RelZ, eMergeStrategy a_Strategy)
{
const NIBBLETYPE * SrcMetas = a_Src.GetBlockMetas();
NIBBLETYPE * DstMetas = GetBlockMetas();
bool IsDummyMetas = ((SrcMetas == nullptr) || (DstMetas == nullptr));
if (IsDummyMetas)
{
MergeByStrategy<false>(a_Src, a_RelX, a_RelY, a_RelZ, a_Strategy, SrcMetas, DstMetas);
}
else
{
MergeByStrategy<true>(a_Src, a_RelX, a_RelY, a_RelZ, a_Strategy, SrcMetas, DstMetas);
}
}
void cBlockArea::Merge(const cBlockArea & a_Src, const Vector3i & a_RelMinCoords, eMergeStrategy a_Strategy)
{
Merge(a_Src, a_RelMinCoords.x, a_RelMinCoords.y, a_RelMinCoords.z, a_Strategy);
}
void cBlockArea::Fill(int a_DataTypes, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, NIBBLETYPE a_BlockLight, NIBBLETYPE a_BlockSkyLight)
{
if ((a_DataTypes & GetDataTypes()) != a_DataTypes)
{
LOGWARNING("%s: requested datatypes that are not present in the BlockArea object, trimming those away (req 0x%x, stor 0x%x)",
__FUNCTION__, a_DataTypes, GetDataTypes()
);
a_DataTypes = a_DataTypes & GetDataTypes();
}
size_t BlockCount = GetBlockCount();
if ((a_DataTypes & baTypes) != 0)
{
for (size_t i = 0; i < BlockCount; i++)
{
m_BlockTypes[i] = a_BlockType;
}
}
if ((a_DataTypes & baMetas) != 0)
{
for (size_t i = 0; i < BlockCount; i++)
{
m_BlockMetas[i] = a_BlockMeta;
}
}
if ((a_DataTypes & baLight) != 0)
{
for (size_t i = 0; i < BlockCount; i++)
{
m_BlockLight[i] = a_BlockLight;
}
}
if ((a_DataTypes & baSkyLight) != 0)
{
for (size_t i = 0; i < BlockCount; i++)
{
m_BlockSkyLight[i] = a_BlockSkyLight;
}
}
// If the area contains block entities, remove those not matching and replace with whatever block entity block was filled
if (HasBlockEntities() && ((a_DataTypes & baTypes) != 0))
{
if (cBlockEntity::IsBlockEntityBlockType(a_BlockType))
{
RescanBlockEntities();
}
else
{
m_BlockEntities->clear();
}
}
}
void cBlockArea::FillRelCuboid(int a_MinRelX, int a_MaxRelX, int a_MinRelY, int a_MaxRelY, int a_MinRelZ, int a_MaxRelZ,
int a_DataTypes, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta,
NIBBLETYPE a_BlockLight, NIBBLETYPE a_BlockSkyLight
)
{
if ((a_DataTypes & GetDataTypes()) != a_DataTypes)
{
LOGWARNING("%s: requested datatypes that are not present in the BlockArea object, trimming those away (req 0x%x, stor 0x%x)",
__FUNCTION__, a_DataTypes, GetDataTypes()
);
a_DataTypes = a_DataTypes & GetDataTypes();
}
if ((a_DataTypes & baTypes) != 0)
{
for (int y = a_MinRelY; y <= a_MaxRelY; y++) for (int z = a_MinRelZ; z <= a_MaxRelZ; z++) for (int x = a_MinRelX; x <= a_MaxRelX; x++)
{
m_BlockTypes[MakeIndex(x, y, z)] = a_BlockType;
} // for x, z, y
}
if ((a_DataTypes & baMetas) != 0)
{
for (int y = a_MinRelY; y <= a_MaxRelY; y++) for (int z = a_MinRelZ; z <= a_MaxRelZ; z++) for (int x = a_MinRelX; x <= a_MaxRelX; x++)
{
m_BlockMetas[MakeIndex(x, y, z)] = a_BlockMeta;
} // for x, z, y
}
if ((a_DataTypes & baLight) != 0)
{
for (int y = a_MinRelY; y <= a_MaxRelY; y++) for (int z = a_MinRelZ; z <= a_MaxRelZ; z++) for (int x = a_MinRelX; x <= a_MaxRelX; x++)
{
m_BlockLight[MakeIndex(x, y, z)] = a_BlockLight;
} // for x, z, y
}
if ((a_DataTypes & baSkyLight) != 0)
{
for (int y = a_MinRelY; y <= a_MaxRelY; y++) for (int z = a_MinRelZ; z <= a_MaxRelZ; z++) for (int x = a_MinRelX; x <= a_MaxRelX; x++)
{
m_BlockSkyLight[MakeIndex(x, y, z)] = a_BlockSkyLight;
} // for x, z, y
}
// If the area contains block entities, remove those in the affected cuboid and replace with whatever block entity block was filled:
if (HasBlockEntities() && ((a_DataTypes & baTypes) != 0))
{
if (cBlockEntity::IsBlockEntityBlockType(a_BlockType))
{
RescanBlockEntities();
}
else
{
m_BlockEntities->clear();
}
}
}
void cBlockArea::FillRelCuboid(const cCuboid & a_RelCuboid,
int a_DataTypes, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta,
NIBBLETYPE a_BlockLight, NIBBLETYPE a_BlockSkyLight
)
{
FillRelCuboid(
a_RelCuboid.p1.x, a_RelCuboid.p2.x,
a_RelCuboid.p1.y, a_RelCuboid.p2.y,
a_RelCuboid.p1.z, a_RelCuboid.p2.z,
a_DataTypes, a_BlockType, a_BlockMeta, a_BlockLight, a_BlockSkyLight
);
}
void cBlockArea::RelLine(int a_RelX1, int a_RelY1, int a_RelZ1, int a_RelX2, int a_RelY2, int a_RelZ2,
int a_DataTypes, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta,
NIBBLETYPE a_BlockLight, NIBBLETYPE a_BlockSkyLight
)
{
// Bresenham-3D algorithm for drawing lines:
int dx = abs(a_RelX2 - a_RelX1);
int dy = abs(a_RelY2 - a_RelY1);
int dz = abs(a_RelZ2 - a_RelZ1);
int sx = (a_RelX1 < a_RelX2) ? 1 : -1;
int sy = (a_RelY1 < a_RelY2) ? 1 : -1;
int sz = (a_RelZ1 < a_RelZ2) ? 1 : -1;
if (dx >= std::max(dy, dz)) // x dominant
{
int yd = dy - dx / 2;
int zd = dz - dx / 2;
for (;;)
{
RelSetData(a_RelX1, a_RelY1, a_RelZ1, a_DataTypes, a_BlockType, a_BlockMeta, a_BlockLight, a_BlockSkyLight);
if (a_RelX1 == a_RelX2)
{
break;
}
if (yd >= 0) // move along y
{
a_RelY1 += sy;
yd -= dx;
}
if (zd >= 0) // move along z
{
a_RelZ1 += sz;
zd -= dx;
}
// move along x
a_RelX1 += sx;
yd += dy;
zd += dz;
}
}
else if (dy >= std::max(dx, dz)) // y dominant
{
int xd = dx - dy / 2;
int zd = dz - dy / 2;
for (;;)
{
RelSetData(a_RelX1, a_RelY1, a_RelZ1, a_DataTypes, a_BlockType, a_BlockMeta, a_BlockLight, a_BlockSkyLight);
if (a_RelY1 == a_RelY2)
{
break;
}
if (xd >= 0) // move along x
{
a_RelX1 += sx;
xd -= dy;
}
if (zd >= 0) // move along z
{
a_RelZ1 += sz;
zd -= dy;
}
// move along y
a_RelY1 += sy;
xd += dx;
zd += dz;
}
}
else
{
// z dominant
ASSERT(dz >= std::max(dx, dy));
int xd = dx - dz / 2;
int yd = dy - dz / 2;
for (;;)
{
RelSetData(a_RelX1, a_RelY1, a_RelZ1, a_DataTypes, a_BlockType, a_BlockMeta, a_BlockLight, a_BlockSkyLight);
if (a_RelZ1 == a_RelZ2)
{
break;
}
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