680 lines
13 KiB
C++
680 lines
13 KiB
C++
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// ChunkDesc.cpp
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// Implements the cChunkDesc class representing the chunk description used while generating a chunk. This class is also exported to Lua for HOOK_CHUNK_GENERATING.
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#include "Globals.h"
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#include "ChunkDesc.h"
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#include "../Noise/Noise.h"
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#include "../BlockEntities/BlockEntity.h"
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#include "../Entities/Entity.h"
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cChunkDesc::cChunkDesc(int a_ChunkX, int a_ChunkZ) :
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m_ChunkX(a_ChunkX),
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m_ChunkZ(a_ChunkZ),
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m_bUseDefaultBiomes(true),
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m_bUseDefaultHeight(true),
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m_bUseDefaultComposition(true),
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m_bUseDefaultFinish(true)
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{
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m_BlockArea.Create(cChunkDef::Width, cChunkDef::Height, cChunkDef::Width);
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/*
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memset(m_BlockTypes, 0, sizeof(cChunkDef::BlockTypes));
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memset(m_BlockMeta, 0, sizeof(cChunkDef::BlockNibbles));
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*/
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memset(m_BiomeMap, 0, sizeof(cChunkDef::BiomeMap));
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memset(m_HeightMap, 0, sizeof(cChunkDef::HeightMap));
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}
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cChunkDesc::~cChunkDesc()
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{
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// Nothing needed yet
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}
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void cChunkDesc::SetChunkCoords(int a_ChunkX, int a_ChunkZ)
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{
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m_ChunkX = a_ChunkX;
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m_ChunkZ = a_ChunkZ;
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}
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void cChunkDesc::FillBlocks(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
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{
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m_BlockArea.Fill(cBlockArea::baTypes | cBlockArea::baMetas, a_BlockType, a_BlockMeta);
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}
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void cChunkDesc::SetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
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{
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m_BlockArea.SetRelBlockTypeMeta(a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta);
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}
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void cChunkDesc::GetBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta) const
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{
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m_BlockArea.GetRelBlockTypeMeta(a_RelX, a_RelY, a_RelZ, a_BlockType, a_BlockMeta);
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}
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void cChunkDesc::SetBlockType(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType)
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{
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cChunkDef::SetBlock(m_BlockArea.GetBlockTypes(), a_RelX, a_RelY, a_RelZ, a_BlockType);
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}
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BLOCKTYPE cChunkDesc::GetBlockType(int a_RelX, int a_RelY, int a_RelZ)
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{
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return cChunkDef::GetBlock(m_BlockArea.GetBlockTypes(), a_RelX, a_RelY, a_RelZ);
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}
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NIBBLETYPE cChunkDesc::GetBlockMeta(int a_RelX, int a_RelY, int a_RelZ)
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{
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return m_BlockArea.GetRelBlockMeta(a_RelX, a_RelY, a_RelZ);
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}
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void cChunkDesc::SetBlockMeta(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_BlockMeta)
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{
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m_BlockArea.SetRelBlockMeta(a_RelX, a_RelY, a_RelZ, a_BlockMeta);
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}
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void cChunkDesc::SetBiome(int a_RelX, int a_RelZ, EMCSBiome a_BiomeID)
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{
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cChunkDef::SetBiome(m_BiomeMap, a_RelX, a_RelZ, a_BiomeID);
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}
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EMCSBiome cChunkDesc::GetBiome(int a_RelX, int a_RelZ)
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{
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return cChunkDef::GetBiome(m_BiomeMap, a_RelX, a_RelZ);
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}
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void cChunkDesc::SetHeight(int a_RelX, int a_RelZ, HEIGHTTYPE a_Height)
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{
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cChunkDef::SetHeight(m_HeightMap, a_RelX, a_RelZ, a_Height);
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}
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HEIGHTTYPE cChunkDesc::GetHeight(int a_RelX, int a_RelZ)
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{
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return cChunkDef::GetHeight(m_HeightMap, a_RelX, a_RelZ);
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}
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void cChunkDesc::SetHeightFromShape(const Shape & a_Shape)
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{
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for (int z = 0; z < cChunkDef::Width; z++)
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{
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for (int x = 0; x < cChunkDef::Width; x++)
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{
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for (HEIGHTTYPE y = cChunkDef::Height - 1; y > 0; y--)
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{
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if (a_Shape[y + x * 256 + z * 16 * 256] != 0)
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{
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cChunkDef::SetHeight(m_HeightMap, x, z, y);
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break;
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}
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} // for y
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} // for x
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} // for z
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}
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void cChunkDesc::GetShapeFromHeight(Shape & a_Shape) const
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{
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for (int z = 0; z < cChunkDef::Width; z++)
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{
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for (int x = 0; x < cChunkDef::Width; x++)
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{
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int height = cChunkDef::GetHeight(m_HeightMap, x, z);
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for (int y = 0; y <= height; y++)
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{
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a_Shape[y + x * 256 + z * 16 * 256] = 1;
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}
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for (int y = height + 1; y < cChunkDef::Height; y++)
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{
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a_Shape[y + x * 256 + z * 16 * 256] = 0;
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} // for y
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} // for x
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} // for z
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}
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void cChunkDesc::SetUseDefaultBiomes(bool a_bUseDefaultBiomes)
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{
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m_bUseDefaultBiomes = a_bUseDefaultBiomes;
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}
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bool cChunkDesc::IsUsingDefaultBiomes(void) const
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{
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return m_bUseDefaultBiomes;
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}
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void cChunkDesc::SetUseDefaultHeight(bool a_bUseDefaultHeight)
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{
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m_bUseDefaultHeight = a_bUseDefaultHeight;
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}
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bool cChunkDesc::IsUsingDefaultHeight(void) const
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{
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return m_bUseDefaultHeight;
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}
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void cChunkDesc::SetUseDefaultComposition(bool a_bUseDefaultComposition)
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{
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m_bUseDefaultComposition = a_bUseDefaultComposition;
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}
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bool cChunkDesc::IsUsingDefaultComposition(void) const
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{
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return m_bUseDefaultComposition;
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}
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void cChunkDesc::SetUseDefaultFinish(bool a_bUseDefaultFinish)
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{
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m_bUseDefaultFinish = a_bUseDefaultFinish;
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}
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bool cChunkDesc::IsUsingDefaultFinish(void) const
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{
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return m_bUseDefaultFinish;
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}
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void cChunkDesc::WriteBlockArea(const cBlockArea & a_BlockArea, int a_RelX, int a_RelY, int a_RelZ, cBlockArea::eMergeStrategy a_MergeStrategy)
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{
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m_BlockArea.Merge(a_BlockArea, a_RelX, a_RelY, a_RelZ, a_MergeStrategy);
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}
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void cChunkDesc::ReadBlockArea(cBlockArea & a_Dest, int a_MinRelX, int a_MaxRelX, int a_MinRelY, int a_MaxRelY, int a_MinRelZ, int a_MaxRelZ)
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{
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// Normalize the coords:
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if (a_MinRelX > a_MaxRelX)
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{
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std::swap(a_MinRelX, a_MaxRelX);
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}
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if (a_MinRelY > a_MaxRelY)
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{
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std::swap(a_MinRelY, a_MaxRelY);
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}
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if (a_MinRelZ > a_MaxRelZ)
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{
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std::swap(a_MinRelZ, a_MaxRelZ);
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}
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// Include the Max coords:
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a_MaxRelX += 1;
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a_MaxRelY += 1;
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a_MaxRelZ += 1;
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// Check coords validity:
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if (a_MinRelX < 0)
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{
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LOGWARNING("%s: MinRelX less than zero, adjusting to zero", __FUNCTION__);
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a_MinRelX = 0;
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}
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else if (a_MinRelX >= cChunkDef::Width)
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{
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LOGWARNING("%s: MinRelX more than chunk width, adjusting to chunk width", __FUNCTION__);
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a_MinRelX = cChunkDef::Width - 1;
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}
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if (a_MaxRelX < 0)
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{
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LOGWARNING("%s: MaxRelX less than zero, adjusting to zero", __FUNCTION__);
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a_MaxRelX = 0;
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}
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else if (a_MaxRelX > cChunkDef::Width)
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{
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LOGWARNING("%s: MaxRelX more than chunk width, adjusting to chunk width", __FUNCTION__);
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a_MaxRelX = cChunkDef::Width;
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}
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if (a_MinRelY < 0)
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{
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LOGWARNING("%s: MinRelY less than zero, adjusting to zero", __FUNCTION__);
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a_MinRelY = 0;
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}
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else if (a_MinRelY >= cChunkDef::Height)
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{
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LOGWARNING("%s: MinRelY more than chunk height, adjusting to chunk height", __FUNCTION__);
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a_MinRelY = cChunkDef::Height - 1;
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}
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if (a_MaxRelY < 0)
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{
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LOGWARNING("%s: MaxRelY less than zero, adjusting to zero", __FUNCTION__);
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a_MaxRelY = 0;
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}
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else if (a_MaxRelY > cChunkDef::Height)
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{
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LOGWARNING("%s: MaxRelY more than chunk height, adjusting to chunk height", __FUNCTION__);
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a_MaxRelY = cChunkDef::Height;
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}
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if (a_MinRelZ < 0)
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{
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LOGWARNING("%s: MinRelZ less than zero, adjusting to zero", __FUNCTION__);
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a_MinRelZ = 0;
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}
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else if (a_MinRelZ >= cChunkDef::Width)
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{
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LOGWARNING("%s: MinRelZ more than chunk width, adjusting to chunk width", __FUNCTION__);
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a_MinRelZ = cChunkDef::Width - 1;
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}
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if (a_MaxRelZ < 0)
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{
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LOGWARNING("%s: MaxRelZ less than zero, adjusting to zero", __FUNCTION__);
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a_MaxRelZ = 0;
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}
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else if (a_MaxRelZ > cChunkDef::Width)
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{
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LOGWARNING("%s: MaxRelZ more than chunk width, adjusting to chunk width", __FUNCTION__);
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a_MaxRelZ = cChunkDef::Width;
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}
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// Prepare the block area:
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int SizeX = a_MaxRelX - a_MinRelX;
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int SizeY = a_MaxRelY - a_MinRelY;
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int SizeZ = a_MaxRelZ - a_MinRelZ;
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a_Dest.Clear();
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a_Dest.m_Origin.x = m_ChunkX * cChunkDef::Width + a_MinRelX;
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a_Dest.m_Origin.y = a_MinRelY;
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a_Dest.m_Origin.z = m_ChunkZ * cChunkDef::Width + a_MinRelZ;
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a_Dest.SetSize(SizeX, SizeY, SizeZ, cBlockArea::baTypes | cBlockArea::baMetas);
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for (int y = 0; y < SizeY; y++)
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{
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int CDY = a_MinRelY + y;
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for (int z = 0; z < SizeZ; z++)
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{
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int CDZ = a_MinRelZ + z;
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for (int x = 0; x < SizeX; x++)
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{
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int CDX = a_MinRelX + x;
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BLOCKTYPE BlockType;
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NIBBLETYPE BlockMeta;
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GetBlockTypeMeta(CDX, CDY, CDZ, BlockType, BlockMeta);
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a_Dest.SetRelBlockTypeMeta(x, y, z, BlockType, BlockMeta);
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} // for x
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} // for z
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} // for y
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}
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HEIGHTTYPE cChunkDesc::GetMaxHeight(void) const
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{
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HEIGHTTYPE MaxHeight = m_HeightMap[0];
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for (size_t i = 1; i < ARRAYCOUNT(m_HeightMap); i++)
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{
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if (m_HeightMap[i] > MaxHeight)
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{
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MaxHeight = m_HeightMap[i];
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}
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}
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return MaxHeight;
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}
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HEIGHTTYPE cChunkDesc::GetMinHeight(void) const
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{
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HEIGHTTYPE MinHeight = m_HeightMap[0];
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for (size_t i = 1; i < ARRAYCOUNT(m_HeightMap); i++)
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{
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if (m_HeightMap[i] < MinHeight)
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{
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MinHeight = m_HeightMap[i];
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}
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}
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return MinHeight;
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}
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void cChunkDesc::FillRelCuboid(
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int a_MinX, int a_MaxX,
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int a_MinY, int a_MaxY,
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int a_MinZ, int a_MaxZ,
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BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta
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)
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{
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int MinX = std::max(a_MinX, 0);
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int MinY = std::max(a_MinY, 0);
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int MinZ = std::max(a_MinZ, 0);
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int MaxX = std::min(a_MaxX, cChunkDef::Width - 1);
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int MaxY = std::min(a_MaxY, cChunkDef::Height - 1);
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int MaxZ = std::min(a_MaxZ, cChunkDef::Width - 1);
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for (int y = MinY; y <= MaxY; y++)
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{
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for (int z = MinZ; z <= MaxZ; z++)
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{
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for (int x = MinX; x <= MaxX; x++)
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{
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SetBlockTypeMeta(x, y, z, a_BlockType, a_BlockMeta);
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}
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} // for z
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} // for y
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}
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void cChunkDesc::ReplaceRelCuboid(
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int a_MinX, int a_MaxX,
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int a_MinY, int a_MaxY,
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int a_MinZ, int a_MaxZ,
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BLOCKTYPE a_SrcType, NIBBLETYPE a_SrcMeta,
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BLOCKTYPE a_DstType, NIBBLETYPE a_DstMeta
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)
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{
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int MinX = std::max(a_MinX, 0);
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int MinY = std::max(a_MinY, 0);
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int MinZ = std::max(a_MinZ, 0);
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int MaxX = std::min(a_MaxX, cChunkDef::Width - 1);
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int MaxY = std::min(a_MaxY, cChunkDef::Height - 1);
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int MaxZ = std::min(a_MaxZ, cChunkDef::Width - 1);
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for (int y = MinY; y <= MaxY; y++)
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{
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for (int z = MinZ; z <= MaxZ; z++)
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{
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for (int x = MinX; x <= MaxX; x++)
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{
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BLOCKTYPE BlockType;
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NIBBLETYPE BlockMeta;
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GetBlockTypeMeta(x, y, z, BlockType, BlockMeta);
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if ((BlockType == a_SrcType) && (BlockMeta == a_SrcMeta))
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{
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SetBlockTypeMeta(x, y, z, a_DstType, a_DstMeta);
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}
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}
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} // for z
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} // for y
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}
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void cChunkDesc::FloorRelCuboid(
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int a_MinX, int a_MaxX,
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int a_MinY, int a_MaxY,
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int a_MinZ, int a_MaxZ,
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BLOCKTYPE a_DstType, NIBBLETYPE a_DstMeta
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)
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{
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int MinX = std::max(a_MinX, 0);
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int MinY = std::max(a_MinY, 0);
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int MinZ = std::max(a_MinZ, 0);
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int MaxX = std::min(a_MaxX, cChunkDef::Width - 1);
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int MaxY = std::min(a_MaxY, cChunkDef::Height - 1);
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int MaxZ = std::min(a_MaxZ, cChunkDef::Width - 1);
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for (int y = MinY; y <= MaxY; y++)
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{
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for (int z = MinZ; z <= MaxZ; z++)
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{
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for (int x = MinX; x <= MaxX; x++)
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{
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switch (GetBlockType(x, y, z))
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{
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case E_BLOCK_AIR:
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case E_BLOCK_WATER:
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case E_BLOCK_STATIONARY_WATER:
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{
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SetBlockTypeMeta(x, y, z, a_DstType, a_DstMeta);
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break;
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}
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} // switch (GetBlockType)
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} // for x
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} // for z
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} // for y
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}
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void cChunkDesc::RandomFillRelCuboid(
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int a_MinX, int a_MaxX,
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int a_MinY, int a_MaxY,
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int a_MinZ, int a_MaxZ,
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BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta,
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int a_RandomSeed, int a_ChanceOutOf10k
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)
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{
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cNoise Noise(a_RandomSeed);
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int MinX = std::max(a_MinX, 0);
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int MinY = std::max(a_MinY, 0);
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int MinZ = std::max(a_MinZ, 0);
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int MaxX = std::min(a_MaxX, cChunkDef::Width - 1);
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int MaxY = std::min(a_MaxY, cChunkDef::Height - 1);
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int MaxZ = std::min(a_MaxZ, cChunkDef::Width - 1);
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for (int y = MinY; y <= MaxY; y++)
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{
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for (int z = MinZ; z <= MaxZ; z++)
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{
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for (int x = MinX; x <= MaxX; x++)
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{
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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)
|
|
{
|
|
auto Idx = cChunkDef::MakeIndex(a_RelX, a_RelY, a_RelZ);
|
|
auto itr = m_BlockEntities.find(Idx);
|
|
|
|
if (itr != m_BlockEntities.end())
|
|
{
|
|
// Already in the list:
|
|
cBlockEntity * BlockEntity = itr->second;
|
|
if (BlockEntity->GetBlockType() == GetBlockType(a_RelX, a_RelY, a_RelZ))
|
|
{
|
|
// Correct type, already present. Return it:
|
|
return BlockEntity;
|
|
}
|
|
else
|
|
{
|
|
// Wrong type, the block type has been overwritten. Erase and create new:
|
|
m_BlockEntities.erase(itr);
|
|
}
|
|
}
|
|
|
|
int AbsX = a_RelX + m_ChunkX * cChunkDef::Width;
|
|
int AbsZ = a_RelZ + m_ChunkZ * cChunkDef::Width;
|
|
|
|
// 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 == nullptr)
|
|
{
|
|
// No block entity for this block type
|
|
return nullptr;
|
|
}
|
|
m_BlockEntities.insert({ Idx, be });
|
|
return be;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void cChunkDesc::UpdateHeightmap(void)
|
|
{
|
|
for (int x = 0; x < cChunkDef::Width; x++)
|
|
{
|
|
for (int z = 0; z < cChunkDef::Width; z++)
|
|
{
|
|
HEIGHTTYPE Height = 0;
|
|
for (HEIGHTTYPE y = cChunkDef::Height - 1; y > 0; y--)
|
|
{
|
|
BLOCKTYPE BlockType = GetBlockType(x, y, z);
|
|
if (BlockType != E_BLOCK_AIR)
|
|
{
|
|
Height = y;
|
|
break;
|
|
}
|
|
} // for y
|
|
SetHeight(x, z, Height);
|
|
} // for z
|
|
} // for x
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void cChunkDesc::CompressBlockMetas(cChunkDef::BlockNibbles & a_DestMetas)
|
|
{
|
|
const NIBBLETYPE * AreaMetas = m_BlockArea.GetBlockMetas();
|
|
for (size_t i = 0; i < ARRAYCOUNT(a_DestMetas); i++)
|
|
{
|
|
a_DestMetas[i] = static_cast<NIBBLETYPE>(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
|
|
|
|
|
|
|
|
|
|
|