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authorAlexander Harkness <bearbin@gmail.com>2013-11-24 15:19:41 +0100
committerAlexander Harkness <bearbin@gmail.com>2013-11-24 15:19:41 +0100
commit675b4aa878f16291ce33fced48a2bc7425f635ae (patch)
tree409914df27a98f65adf866da669429c4de141b6f /src/Generating/ChunkDesc.cpp
parentLineBlockTracer: Using the coord-based block faces. (diff)
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Diffstat (limited to 'src/Generating/ChunkDesc.cpp')
-rw-r--r--src/Generating/ChunkDesc.cpp605
1 files changed, 605 insertions, 0 deletions
diff --git a/src/Generating/ChunkDesc.cpp b/src/Generating/ChunkDesc.cpp
new file mode 100644
index 000000000..9fb306996
--- /dev/null
+++ b/src/Generating/ChunkDesc.cpp
@@ -0,0 +1,605 @@
+
+// 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"
+#include "../Cuboid.h"
+#include "../Noise.h"
+#include "../BlockEntities/BlockEntity.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)
+{
+ m_BlockArea.Create(cChunkDef::Width, cChunkDef::Height, cChunkDef::Width);
+ /*
+ 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::SetChunkCoords(int a_ChunkX, int a_ChunkZ)
+{
+ m_ChunkX = a_ChunkX;
+ m_ChunkZ = a_ChunkZ;
+}
+
+
+
+
+
+void cChunkDesc::FillBlocks(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
+{
+ m_BlockArea.Fill(cBlockArea::baTypes | cBlockArea::baMetas, a_BlockType, a_BlockMeta);
+}
+
+
+
+
+
+void cChunkDesc::SetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
+{
+ m_BlockArea.SetRelBlockTypeMeta(a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta);
+}
+
+
+
+
+
+void cChunkDesc::GetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta)
+{
+ m_BlockArea.GetRelBlockTypeMeta(a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta);
+}
+
+
+
+
+
+void cChunkDesc::SetBlockType(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType)
+{
+ cChunkDef::SetBlock(m_BlockArea.GetBlockTypes(), a_RelX, a_RelY, a_RelZ, a_BlockType);
+}
+
+
+
+
+
+BLOCKTYPE cChunkDesc::GetBlockType(int a_RelX, int a_RelY, int a_RelZ)
+{
+ return cChunkDef::GetBlock(m_BlockArea.GetBlockTypes(), a_RelX, a_RelY, a_RelZ);
+}
+
+
+
+
+
+NIBBLETYPE cChunkDesc::GetBlockMeta(int a_RelX, int a_RelY, int a_RelZ)
+{
+ return m_BlockArea.GetRelBlockMeta(a_RelX, a_RelY, a_RelZ);
+}
+
+
+
+
+
+void cChunkDesc::SetBlockMeta(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_BlockMeta)
+{
+ m_BlockArea.SetRelBlockMeta(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, cBlockArea::eMergeStrategy a_MergeStrategy)
+{
+ m_BlockArea.Merge(a_BlockArea, a_RelX, a_RelY, a_RelZ, a_MergeStrategy);
+}
+
+
+
+
+
+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
+}
+
+
+
+
+
+HEIGHTTYPE cChunkDesc::GetMaxHeight(void) const
+{
+ HEIGHTTYPE MaxHeight = m_HeightMap[0];
+ for (int i = 1; i < ARRAYCOUNT(m_HeightMap); i++)
+ {
+ if (m_HeightMap[i] > MaxHeight)
+ {
+ MaxHeight = m_HeightMap[i];
+ }
+ }
+ return MaxHeight;
+}
+
+
+
+
+
+void cChunkDesc::FillRelCuboid(
+ int a_MinX, int a_MaxX,
+ int a_MinY, int a_MaxY,
+ int a_MinZ, int a_MaxZ,
+ BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta
+)
+{
+ int MinX = std::max(a_MinX, 0);
+ int MinY = std::max(a_MinY, 0);
+ int MinZ = std::max(a_MinZ, 0);
+ int MaxX = std::min(a_MaxX, cChunkDef::Width - 1);
+ int MaxY = std::min(a_MaxY, cChunkDef::Height - 1);
+ int MaxZ = std::min(a_MaxZ, cChunkDef::Width - 1);
+
+ for (int y = MinY; y <= MaxY; y++)
+ {
+ for (int z = MinZ; z <= MaxZ; z++)
+ {
+ for (int x = MinX; x <= MaxX; x++)
+ {
+ SetBlockTypeMeta(x, y, z, a_BlockType, a_BlockMeta);
+ }
+ } // for z
+ } // for y
+}
+
+
+
+
+
+void cChunkDesc::ReplaceRelCuboid(
+ int a_MinX, int a_MaxX,
+ int a_MinY, int a_MaxY,
+ int a_MinZ, int a_MaxZ,
+ BLOCKTYPE a_SrcType, NIBBLETYPE a_SrcMeta,
+ BLOCKTYPE a_DstType, NIBBLETYPE a_DstMeta
+)
+{
+ int MinX = std::max(a_MinX, 0);
+ int MinY = std::max(a_MinY, 0);
+ int MinZ = std::max(a_MinZ, 0);
+ int MaxX = std::min(a_MaxX, cChunkDef::Width - 1);
+ int MaxY = std::min(a_MaxY, cChunkDef::Height - 1);
+ int MaxZ = std::min(a_MaxZ, cChunkDef::Width - 1);
+
+ for (int y = MinY; y <= MaxY; y++)
+ {
+ for (int z = MinZ; z <= MaxZ; z++)
+ {
+ for (int x = MinX; x <= MaxX; x++)
+ {
+ BLOCKTYPE BlockType;
+ NIBBLETYPE BlockMeta;
+ GetBlockTypeMeta(x, y, z, BlockType, BlockMeta);
+ if ((BlockType == a_SrcType) && (BlockMeta == a_SrcMeta))
+ {
+ SetBlockTypeMeta(x, y, z, a_DstType, a_DstMeta);
+ }
+ }
+ } // for z
+ } // for y
+}
+
+
+
+
+
+void cChunkDesc::FloorRelCuboid(
+ int a_MinX, int a_MaxX,
+ int a_MinY, int a_MaxY,
+ int a_MinZ, int a_MaxZ,
+ BLOCKTYPE a_DstType, NIBBLETYPE a_DstMeta
+)
+{
+ int MinX = std::max(a_MinX, 0);
+ int MinY = std::max(a_MinY, 0);
+ int MinZ = std::max(a_MinZ, 0);
+ int MaxX = std::min(a_MaxX, cChunkDef::Width - 1);
+ int MaxY = std::min(a_MaxY, cChunkDef::Height - 1);
+ int MaxZ = std::min(a_MaxZ, cChunkDef::Width - 1);
+
+ for (int y = MinY; y <= MaxY; y++)
+ {
+ for (int z = MinZ; z <= MaxZ; z++)
+ {
+ for (int x = MinX; x <= MaxX; x++)
+ {
+ switch (GetBlockType(x, y, z))
+ {
+ case E_BLOCK_AIR:
+ case E_BLOCK_WATER:
+ case E_BLOCK_STATIONARY_WATER:
+ {
+ SetBlockTypeMeta(x, y, z, a_DstType, a_DstMeta);
+ break;
+ }
+ } // switch (GetBlockType)
+ } // for x
+ } // for z
+ } // for y
+}
+
+
+
+
+
+void cChunkDesc::RandomFillRelCuboid(
+ int a_MinX, int a_MaxX,
+ int a_MinY, int a_MaxY,
+ int a_MinZ, int a_MaxZ,
+ BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta,
+ int a_RandomSeed, int a_ChanceOutOf10k
+)
+{
+ cNoise Noise(a_RandomSeed);
+ int MinX = std::max(a_MinX, 0);
+ int MinY = std::max(a_MinY, 0);
+ int MinZ = std::max(a_MinZ, 0);
+ int MaxX = std::min(a_MaxX, cChunkDef::Width - 1);
+ int MaxY = std::min(a_MaxY, cChunkDef::Height - 1);
+ int MaxZ = std::min(a_MaxZ, cChunkDef::Width - 1);
+
+ for (int y = MinY; y <= MaxY; y++)
+ {
+ for (int z = MinZ; z <= MaxZ; z++)
+ {
+ for (int x = MinX; x <= MaxX; x++)
+ {
+ int rnd = (Noise.IntNoise3DInt(x, y, z) / 7) % 10000;
+ if (rnd <= a_ChanceOutOf10k)
+ {
+ SetBlockTypeMeta(x, y, z, a_BlockType, a_BlockMeta);
+ }
+ }
+ } // for z
+ } // for y
+}
+
+
+
+
+
+cBlockEntity * cChunkDesc::GetBlockEntity(int a_RelX, int a_RelY, int a_RelZ)
+{
+ int AbsX = a_RelX + m_ChunkX * cChunkDef::Width;
+ int AbsZ = a_RelZ + m_ChunkZ * cChunkDef::Width;
+ for (cBlockEntityList::iterator itr = m_BlockEntities.begin(), end = m_BlockEntities.end(); itr != end; ++itr)
+ {
+ if (((*itr)->GetPosX() == AbsX) && ((*itr)->GetPosY() == a_RelY) && ((*itr)->GetPosZ() == AbsZ))
+ {
+ // Already in the list:
+ if ((*itr)->GetBlockType() != GetBlockType(a_RelX, a_RelY, a_RelZ))
+ {
+ // Wrong type, the block type has been overwritten. Erase and create new:
+ m_BlockEntities.erase(itr);
+ break;
+ }
+ // Correct type, already present. Return it:
+ return *itr;
+ }
+ } // for itr - m_BlockEntities[]
+
+ // The block entity is not created yet, try to create it and add to list:
+ cBlockEntity * be = cBlockEntity::CreateByBlockType(GetBlockType(a_RelX, a_RelY, a_RelZ), GetBlockMeta(a_RelX, a_RelY, a_RelZ), AbsX, a_RelY, AbsZ);
+ if (be == NULL)
+ {
+ // No block entity for this block type
+ return NULL;
+ }
+ m_BlockEntities.push_back(be);
+ return be;
+}
+
+
+
+
+
+void cChunkDesc::CompressBlockMetas(cChunkDef::BlockNibbles & a_DestMetas)
+{
+ const NIBBLETYPE * AreaMetas = m_BlockArea.GetBlockMetas();
+ for (int i = 0; i < ARRAYCOUNT(a_DestMetas); i++)
+ {
+ a_DestMetas[i] = AreaMetas[2 * i] | (AreaMetas[2 * i + 1] << 4);
+ }
+}
+
+
+
+
+
+#ifdef _DEBUG
+
+void cChunkDesc::VerifyHeightmap(void)
+{
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ for (int y = cChunkDef::Height - 1; y > 0; y--)
+ {
+ BLOCKTYPE BlockType = GetBlockType(x, y, z);
+ if (BlockType != E_BLOCK_AIR)
+ {
+ int Height = GetHeight(x, z);
+ ASSERT(Height == y);
+ break;
+ }
+ } // for y
+ } // for z
+ } // for x
+}
+
+#endif // _DEBUG
+
+
+
+
+