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-rw-r--r--source/Chunk.cpp53
1 files changed, 53 insertions, 0 deletions
diff --git a/source/Chunk.cpp b/source/Chunk.cpp
index 149adaa62..72b065bdd 100644
--- a/source/Chunk.cpp
+++ b/source/Chunk.cpp
@@ -317,6 +317,59 @@ void cChunk::GetBlockData(BLOCKTYPE * a_BlockData)
+void cChunk::WriteBlockArea(cBlockArea & a_Area, int a_MinBlockX, int a_MinBlockY, int a_MinBlockZ, int a_DataTypes)
+{
+ if ((a_DataTypes & (cBlockArea::baTypes | cBlockArea::baMetas)) != (cBlockArea::baTypes | cBlockArea::baMetas))
+ {
+ LOGWARNING("cChunk::WriteBlockArea(): unsupported datatype request, can write only types + metas (0x%x), requested 0x%x. Ignoring.",
+ (cBlockArea::baTypes | cBlockArea::baMetas), a_DataTypes & (cBlockArea::baTypes | cBlockArea::baMetas)
+ );
+ return;
+ }
+
+ // SizeX, SizeZ are the dimensions of the block data to copy to the chunk (size of the geometric union)
+
+ int BlockStartX = std::max(a_MinBlockX, m_PosX * cChunkDef::Width);
+ int BlockEndX = std::min(a_MinBlockX + a_Area.GetSizeX(), (m_PosX + 1) * cChunkDef::Width);
+ int BlockStartZ = std::max(a_MinBlockZ, m_PosZ * cChunkDef::Width);
+ int BlockEndZ = std::min(a_MinBlockZ + a_Area.GetSizeZ(), (m_PosZ + 1) * cChunkDef::Width);
+ int SizeX = BlockEndX - BlockStartX;
+ int SizeZ = BlockEndZ - BlockStartZ;
+ int OffX = BlockStartX - m_PosX * cChunkDef::Width;
+ int OffZ = BlockStartZ - m_PosZ * cChunkDef::Width;
+ int BaseX = BlockStartX - a_MinBlockX;
+ int BaseZ = BlockStartZ - a_MinBlockZ;
+ int SizeY = a_Area.GetSizeY();
+
+ // TODO: Improve this by not calling FastSetBlock() and doing the processing here
+ // so that the heightmap is touched only once for each column.
+ BLOCKTYPE * AreaBlockTypes = a_Area.GetBlockTypes();
+ NIBBLETYPE * AreaBlockMetas = a_Area.GetBlockMetas();
+ for (int y = 0; y < SizeY; y++)
+ {
+ int ChunkY = a_MinBlockY + y;
+ int AreaY = y;
+ for (int z = 0; z < SizeZ; z++)
+ {
+ int ChunkZ = OffZ + z;
+ int AreaZ = BaseZ + z;
+ for (int x = 0; x < SizeX; x++)
+ {
+ int ChunkX = OffX + x;
+ int AreaX = BaseX + x;
+ int idx = a_Area.MakeIndex(AreaX, AreaY, AreaZ);
+ BLOCKTYPE BlockType = AreaBlockTypes[idx];
+ NIBBLETYPE BlockMeta = AreaBlockMetas[idx];
+ FastSetBlock(ChunkX, ChunkY, ChunkZ, BlockType, BlockMeta);
+ } // for x
+ } // for z
+ } // for y
+}
+
+
+
+
+
/// Returns true if there is a block entity at the coords specified
bool cChunk::HasBlockEntityAt(int a_BlockX, int a_BlockY, int a_BlockZ)
{