diff options
Diffstat (limited to 'source/BlockArea.cpp')
| -rw-r--r-- | source/BlockArea.cpp | 626 |
1 files changed, 626 insertions, 0 deletions
diff --git a/source/BlockArea.cpp b/source/BlockArea.cpp new file mode 100644 index 000000000..7750b94fb --- /dev/null +++ b/source/BlockArea.cpp @@ -0,0 +1,626 @@ +
+// BlockArea.cpp
+
+// 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 "cWorld.h"
+
+
+
+
+
+cBlockArea::cBlockArea(void) :
+ m_SizeX(0),
+ m_SizeY(0),
+ m_SizeZ(0),
+ m_BlockTypes(NULL),
+ m_BlockMetas(NULL),
+ m_BlockLight(NULL),
+ m_BlockSkyLight(NULL)
+{
+}
+
+
+
+
+
+cBlockArea::~cBlockArea()
+{
+ Clear();
+}
+
+
+
+
+
+void cBlockArea::Clear(void)
+{
+ delete[] m_BlockTypes; m_BlockTypes = NULL;
+ delete[] m_BlockMetas; m_BlockMetas = NULL;
+ delete[] m_BlockLight; m_BlockLight = NULL;
+ delete[] m_BlockSkyLight; m_BlockSkyLight = NULL;
+ m_SizeX = 0;
+ m_SizeY = 0;
+ m_SizeZ = 0;
+}
+
+
+
+
+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)
+{
+ // Normalize the coords:
+ if (a_MinBlockX > a_MaxBlockX)
+ {
+ std::swap(a_MinBlockX, a_MaxBlockX);
+ }
+ if (a_MinBlockY > a_MaxBlockY)
+ {
+ std::swap(a_MinBlockY, a_MaxBlockY);
+ }
+ if (a_MinBlockZ > a_MaxBlockZ)
+ {
+ std::swap(a_MinBlockZ, a_MaxBlockZ);
+ }
+
+ // Check coords validity:
+ if (a_MinBlockY < 0)
+ {
+ LOGWARNING("cBlockArea:Read(): MinBlockY less than zero, adjusting to zero");
+ a_MinBlockY = 0;
+ }
+ else if (a_MinBlockY >= cChunkDef::Height)
+ {
+ LOGWARNING("cBlockArea::Read(): MinBlockY more than chunk height, adjusting to chunk height");
+ a_MinBlockY = cChunkDef::Height - 1;
+ }
+ if (a_MaxBlockY < 0)
+ {
+ LOGWARNING("cBlockArea:Read(): MaxBlockY less than zero, adjusting to zero");
+ a_MaxBlockY = 0;
+ }
+ else if (a_MinBlockY >= cChunkDef::Height)
+ {
+ LOGWARNING("cBlockArea::Read(): MaxBlockY more than chunk height, adjusting to chunk height");
+ a_MaxBlockY = cChunkDef::Height - 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_OriginX = a_MinBlockX;
+ m_OriginY = a_MinBlockY;
+ m_OriginZ = 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_World->ForEachChunkInRect(MinChunkX, MaxChunkX, MinChunkZ, MaxChunkZ, Reader))
+ {
+ Clear();
+ return false;
+ }
+ return true;
+}
+
+
+
+
+
+bool cBlockArea::Write(cWorld * a_World, int a_MinBlockX, int a_MinBlockY, int a_MinBlockZ, int a_DataTypes)
+{
+ // TODO
+ ASSERT(!"Not implemented yet");
+ return false;
+}
+
+
+
+
+
+
+void cBlockArea::SetRelBlockType(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType)
+{
+ if (m_BlockTypes == NULL)
+ {
+ LOGWARNING("cBlockArea: BlockTypes have not been read!");
+ return;
+ }
+ m_BlockTypes[MakeIndex(a_RelX, a_RelY, a_RelZ)] = a_BlockType;
+}
+
+
+
+
+
+void cBlockArea::SetBlockType(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType)
+{
+ SetRelBlockType(a_BlockX - m_OriginX, a_BlockY - m_OriginY, a_BlockZ - m_OriginZ, a_BlockType);
+}
+
+
+
+
+
+void cBlockArea::SetRelBlockMeta(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_BlockMeta)
+{
+ SetRelNibble(a_RelX, a_RelY, a_RelZ, a_BlockMeta, m_BlockMetas);
+}
+
+
+
+
+
+void cBlockArea::SetBlockMeta(int a_BlockX, int a_BlockY, int a_BlockZ, NIBBLETYPE a_BlockMeta)
+{
+ SetNibble(a_BlockX, a_BlockY, a_BlockZ, a_BlockMeta, m_BlockMetas);
+}
+
+
+
+
+
+void cBlockArea::SetRelBlockLight(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_BlockLight)
+{
+ SetRelNibble(a_RelX, a_RelY, a_RelZ, a_BlockLight, m_BlockLight);
+}
+
+
+
+
+
+void cBlockArea::SetBlockLight(int a_BlockX, int a_BlockY, int a_BlockZ, NIBBLETYPE a_BlockLight)
+{
+ SetNibble(a_BlockX, a_BlockY, a_BlockZ, a_BlockLight, m_BlockLight);
+}
+
+
+
+
+
+void cBlockArea::SetRelBlockSkyLight(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_BlockSkyLight)
+{
+ SetRelNibble(a_RelX, a_RelY, a_RelZ, a_BlockSkyLight, m_BlockSkyLight);
+}
+
+
+
+
+
+void cBlockArea::SetBlockSkyLight(int a_BlockX, int a_BlockY, int a_BlockZ, NIBBLETYPE a_BlockSkyLight)
+{
+ SetNibble(a_BlockX, a_BlockY, a_BlockZ, a_BlockSkyLight, m_BlockSkyLight);
+}
+
+
+
+
+
+BLOCKTYPE cBlockArea::GetRelBlockType(int a_RelX, int a_RelY, int a_RelZ)
+{
+ if (m_BlockTypes == NULL)
+ {
+ LOGWARNING("cBlockArea: BlockTypes have not been read!");
+ return E_BLOCK_AIR;
+ }
+ return m_BlockTypes[MakeIndex(a_RelX, a_RelY, a_RelZ)];
+}
+
+
+
+
+
+BLOCKTYPE cBlockArea::GetBlockType(int a_BlockX, int a_BlockY, int a_BlockZ)
+{
+ return GetRelBlockType(a_BlockX - m_OriginX, a_BlockY - m_OriginY, a_BlockZ - m_OriginZ);
+}
+
+
+
+
+
+NIBBLETYPE cBlockArea::GetRelBlockMeta(int a_RelX, int a_RelY, int a_RelZ)
+{
+ return GetRelNibble(a_RelX, a_RelY, a_RelZ, m_BlockMetas);
+}
+
+
+
+
+
+NIBBLETYPE cBlockArea::GetBlockMeta(int a_BlockX, int a_BlockY, int a_BlockZ)
+{
+ return GetNibble(a_BlockX, a_BlockY, a_BlockZ, m_BlockMetas);
+}
+
+
+
+
+
+NIBBLETYPE cBlockArea::GetRelBlockLight(int a_RelX, int a_RelY, int a_RelZ)
+{
+ return GetRelNibble(a_RelX, a_RelY, a_RelZ, m_BlockLight);
+}
+
+
+
+
+
+NIBBLETYPE cBlockArea::GetBlockLight(int a_BlockX, int a_BlockY, int a_BlockZ)
+{
+ return GetNibble(a_BlockX, a_BlockY, a_BlockZ, m_BlockLight);
+}
+
+
+
+
+
+NIBBLETYPE cBlockArea::GetRelBlockSkyLight(int a_RelX, int a_RelY, int a_RelZ)
+{
+ return GetRelNibble(a_RelX, a_RelY, a_RelZ, m_BlockSkyLight);
+}
+
+
+
+
+
+NIBBLETYPE cBlockArea::GetBlockSkyLight(int a_BlockX, int a_BlockY, int a_BlockZ)
+{
+ return GetNibble(a_BlockX, a_BlockY, a_BlockZ, m_BlockSkyLight);
+}
+
+
+
+
+
+int cBlockArea::GetDataTypes(void) const
+{
+ int res = 0;
+ if (m_BlockTypes != NULL)
+ {
+ res |= baTypes;
+ }
+ if (m_BlockMetas != NULL)
+ {
+ res |= baMetas;
+ }
+ if (m_BlockLight != NULL)
+ {
+ res |= baLight;
+ }
+ if (m_BlockSkyLight != NULL)
+ {
+ res |= baSkyLight;
+ }
+ return res;
+}
+
+
+
+
+
+bool cBlockArea::SetSize(int a_SizeX, int a_SizeY, int a_SizeZ, int a_DataTypes)
+{
+ ASSERT(m_BlockTypes == NULL); // Has been cleared
+
+ if (a_DataTypes & baTypes)
+ {
+ m_BlockTypes = new BLOCKTYPE[a_SizeX * a_SizeY * a_SizeZ];
+ if (m_BlockTypes == NULL)
+ {
+ return false;
+ }
+ }
+ if (a_DataTypes & baMetas)
+ {
+ m_BlockMetas = new NIBBLETYPE[a_SizeX * a_SizeY * a_SizeZ];
+ if (m_BlockMetas == NULL)
+ {
+ delete[] m_BlockTypes;
+ return false;
+ }
+ }
+ if (a_DataTypes & baLight)
+ {
+ m_BlockLight = new NIBBLETYPE[a_SizeX * a_SizeY * a_SizeZ];
+ if (m_BlockLight == NULL)
+ {
+ delete[] m_BlockMetas;
+ delete[] m_BlockTypes;
+ return false;
+ }
+ }
+ if (a_DataTypes & baSkyLight)
+ {
+ m_BlockSkyLight = new NIBBLETYPE[a_SizeX * a_SizeY * a_SizeZ];
+ if (m_BlockSkyLight == NULL)
+ {
+ delete[] m_BlockLight;
+ delete[] m_BlockMetas;
+ delete[] m_BlockTypes;
+ return false;
+ }
+ }
+ m_SizeX = a_SizeX;
+ m_SizeY = a_SizeY;
+ m_SizeZ = a_SizeZ;
+ return true;
+}
+
+
+
+
+
+int cBlockArea::MakeIndex(int a_RelX, int a_RelY, int a_RelZ)
+{
+ return a_RelX + a_RelZ * m_SizeZ + a_RelY * m_SizeX * m_SizeZ;
+}
+
+
+
+
+
+void cBlockArea::SetRelNibble(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_Value, NIBBLETYPE * a_Array)
+{
+ if (a_Array == NULL)
+ {
+ LOGWARNING("cBlockArea: datatype has not been read!");
+ return;
+ }
+ a_Array[MakeIndex(a_RelX, a_RelY, a_RelZ)] = a_Value;
+}
+
+
+
+
+
+void cBlockArea::SetNibble(int a_BlockX, int a_BlockY, int a_BlockZ, NIBBLETYPE a_Value, NIBBLETYPE * a_Array)
+{
+ SetRelNibble(a_BlockX - m_OriginX, a_BlockY - m_OriginY, a_BlockZ - m_OriginZ, a_Value, a_Array);
+}
+
+
+
+
+
+NIBBLETYPE cBlockArea::GetRelNibble(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE * a_Array)
+{
+ if (a_Array == NULL)
+ {
+ LOGWARNING("cBlockArea: datatype has not been read!");
+ return 16;
+ }
+ return a_Array[MakeIndex(a_RelX, a_RelY, a_RelZ)];
+}
+
+
+
+
+
+NIBBLETYPE cBlockArea::GetNibble(int a_BlockX, int a_BlockY, int a_BlockZ, NIBBLETYPE * a_Array)
+{
+ return GetRelNibble(a_BlockX - m_OriginX, a_BlockY - m_OriginY, a_BlockZ - m_OriginZ, a_Array);
+}
+
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cBlockArea::cChunkReader:
+
+cBlockArea::cChunkReader::cChunkReader(cBlockArea & a_Area) :
+ m_Area(a_Area),
+ m_OriginX(a_Area.m_OriginX),
+ m_OriginY(a_Area.m_OriginY),
+ m_OriginZ(a_Area.m_OriginZ)
+{
+}
+
+
+
+
+
+void cBlockArea::cChunkReader::CopyNibbles(NIBBLETYPE * a_AreaDst, const NIBBLETYPE * a_ChunkSrc)
+{
+ int SizeY = m_Area.m_SizeY;
+ int MinY = m_OriginY;
+
+ // SizeX, SizeZ are the dmensions of the block data to copy from the current chunk (size of the geometric union)
+ // OffX, OffZ are the offsets of the current chunk data from the area origin
+ // BaseX, BaseZ are the offsets of the area data within the current chunk from the chunk borders
+ int SizeX = cChunkDef::Width;
+ int SizeZ = cChunkDef::Width;
+ int OffX, OffZ;
+ int BaseX, BaseZ;
+ 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;
+ a_AreaDst[m_Area.MakeIndex(AreaX, AreaY, AreaZ)] = cChunkDef::GetNibble(a_ChunkSrc, ChunkX, ChunkY, ChunkZ);
+ } // for x
+ } // for z
+ } // for y
+}
+
+
+
+
+
+bool cBlockArea::cChunkReader::Coords(int a_ChunkX, int a_ChunkZ)
+{
+ m_CurrentChunkX = a_ChunkX;
+ m_CurrentChunkZ = a_ChunkZ;
+ return true;
+}
+
+
+
+
+
+void cBlockArea::cChunkReader::BlockTypes(const BLOCKTYPE * a_BlockTypes)
+{
+ if (m_Area.m_BlockTypes == NULL)
+ {
+ // Don't want BlockTypes
+ return;
+ }
+
+ int SizeY = m_Area.m_SizeY;
+ int MinY = m_OriginY;
+
+ // SizeX, SizeZ are the dmensions of the block data to copy from the current chunk (size of the geometric union)
+ // OffX, OffZ are the offsets of the current chunk data from the area origin
+ // BaseX, BaseZ are the offsets of the area data within the current chunk from the chunk borders
+ int SizeX = cChunkDef::Width;
+ int SizeZ = cChunkDef::Width;
+ int OffX, OffZ;
+ int BaseX, BaseZ;
+ 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
+}
+
+
+
+
+
+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);
+}
+
+
+
+
+
|