diff options
Diffstat (limited to 'src/BlockArea.cpp')
| -rw-r--r-- | src/BlockArea.cpp | 180 |
1 files changed, 117 insertions, 63 deletions
diff --git a/src/BlockArea.cpp b/src/BlockArea.cpp index 11bd76e6c..4fe6cd51e 100644 --- a/src/BlockArea.cpp +++ b/src/BlockArea.cpp @@ -309,6 +309,14 @@ void cBlockArea::Clear(void) void cBlockArea::Create(int a_SizeX, int a_SizeY, int a_SizeZ, int a_DataTypes) { + if ((a_SizeX < 0) || (a_SizeY < 0) || (a_SizeZ < 0)) + { + LOGWARNING("Creating a cBlockArea with a negative size! Call to Create ignored. (%d, %d, %d)", + a_SizeX, a_SizeY, a_SizeZ + ); + return; + } + Clear(); int BlockCount = a_SizeX * a_SizeY * a_SizeZ; if ((a_DataTypes & baTypes) != 0) @@ -1835,87 +1843,133 @@ bool cBlockArea::cChunkReader::Coords(int a_ChunkX, int a_ChunkZ) -void cBlockArea::cChunkReader::ChunkData(const cChunkData & a_BlockBuffer) +void cBlockArea::cChunkReader::ChunkData(const cChunkData & a_BlockBuffer) { + int SizeY = m_Area.m_Size.y; + int MinY = m_Origin.y; + + // SizeX, SizeZ are the dimensions 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_Origin.x; + if (OffX < 0) { - if (m_Area.m_BlockTypes != NULL) - { - int SizeY = m_Area.m_Size.y; - int MinY = m_Origin.y; + BaseX = -OffX; + SizeX += OffX; // SizeX is decreased, OffX is negative + OffX = 0; + } + else + { + BaseX = 0; + } + OffZ = m_CurrentChunkZ * cChunkDef::Width - m_Origin.z; + 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_Origin.x + m_Area.m_Size.x) + { + SizeX -= (m_CurrentChunkX + 1) * cChunkDef::Width - (m_Origin.x + m_Area.m_Size.x); + } + if ((m_CurrentChunkZ + 1) * cChunkDef::Width > m_Origin.z + m_Area.m_Size.z) + { + SizeZ -= (m_CurrentChunkZ + 1) * cChunkDef::Width - (m_Origin.z + m_Area.m_Size.z); + } - // SizeX, SizeZ are the dimensions 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_Origin.x; - if (OffX < 0) - { - BaseX = -OffX; - SizeX += OffX; // SizeX is decreased, OffX is negative - OffX = 0; - } - else - { - BaseX = 0; - } - OffZ = m_CurrentChunkZ * cChunkDef::Width - m_Origin.z; - 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_Origin.x + m_Area.m_Size.x) - { - SizeX -= (m_CurrentChunkX + 1) * cChunkDef::Width - (m_Origin.x + m_Area.m_Size.x); - } - if ((m_CurrentChunkZ + 1) * cChunkDef::Width > m_Origin.z + m_Area.m_Size.z) - { - SizeZ -= (m_CurrentChunkZ + 1) * cChunkDef::Width - (m_Origin.z + m_Area.m_Size.z); - } - - for (int y = 0; y < SizeY; y++) + // Copy the blocktypes: + if (m_Area.m_BlockTypes != NULL) + { + for (int y = 0; y < SizeY; y++) + { + int InChunkY = MinY + y; + int AreaY = y; + for (int z = 0; z < SizeZ; z++) { - int ChunkY = MinY + y; - int AreaY = y; - for (int z = 0; z < SizeZ; z++) + int InChunkZ = BaseZ + z; + int AreaZ = OffZ + z; + for (int x = 0; x < SizeX; x++) { - 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)] = a_BlockBuffer.GetBlock(ChunkX, ChunkY, ChunkZ); - } // for x - } // for z - } // for y - } + int InChunkX = BaseX + x; + int AreaX = OffX + x; + m_Area.m_BlockTypes[m_Area.MakeIndex(AreaX, AreaY, AreaZ)] = a_BlockBuffer.GetBlock(InChunkX, InChunkY, InChunkZ); + } // for x + } // for z + } // for y } + // Copy the block metas: if (m_Area.m_BlockMetas != NULL) { - a_BlockBuffer.CopyMeta(m_Area.m_BlockMetas); + for (int y = 0; y < SizeY; y++) + { + int InChunkY = MinY + y; + int AreaY = y; + for (int z = 0; z < SizeZ; z++) + { + int InChunkZ = BaseZ + z; + int AreaZ = OffZ + z; + for (int x = 0; x < SizeX; x++) + { + int InChunkX = BaseX + x; + int AreaX = OffX + x; + m_Area.m_BlockMetas[m_Area.MakeIndex(AreaX, AreaY, AreaZ)] = a_BlockBuffer.GetMeta(InChunkX, InChunkY, InChunkZ); + } // for x + } // for z + } // for y } + // Copy the blocklight: if (m_Area.m_BlockLight != NULL) { - a_BlockBuffer.CopyBlockLight(m_Area.m_BlockLight); + for (int y = 0; y < SizeY; y++) + { + int InChunkY = MinY + y; + int AreaY = y; + for (int z = 0; z < SizeZ; z++) + { + int InChunkZ = BaseZ + z; + int AreaZ = OffZ + z; + for (int x = 0; x < SizeX; x++) + { + int InChunkX = BaseX + x; + int AreaX = OffX + x; + m_Area.m_BlockLight[m_Area.MakeIndex(AreaX, AreaY, AreaZ)] = a_BlockBuffer.GetBlockLight(InChunkX, InChunkY, InChunkZ); + } // for x + } // for z + } // for y } + // Copy the skylight: if (m_Area.m_BlockSkyLight != NULL) { - a_BlockBuffer.CopySkyLight(m_Area.m_BlockSkyLight); + for (int y = 0; y < SizeY; y++) + { + int InChunkY = MinY + y; + int AreaY = y; + for (int z = 0; z < SizeZ; z++) + { + int InChunkZ = BaseZ + z; + int AreaZ = OffZ + z; + for (int x = 0; x < SizeX; x++) + { + int InChunkX = BaseX + x; + int AreaX = OffX + x; + m_Area.m_BlockSkyLight[m_Area.MakeIndex(AreaX, AreaY, AreaZ)] = a_BlockBuffer.GetSkyLight(InChunkX, InChunkY, InChunkZ); + } // for x + } // for z + } // for y } - } |