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-rw-r--r--src/BlockArea.cpp105
1 files changed, 104 insertions, 1 deletions
diff --git a/src/BlockArea.cpp b/src/BlockArea.cpp
index 4c3da0535..600940d96 100644
--- a/src/BlockArea.cpp
+++ b/src/BlockArea.cpp
@@ -245,6 +245,26 @@ void MergeCombinatorDifference(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBL
+/** Combinator used for cBlockArea::msSimpleCompare merging */
+template <bool MetaValid>
+void MergeCombinatorSimpleCompare(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
+{
+ if ((a_DstType == a_SrcType) && (!MetaValid || (a_DstMeta == a_SrcMeta)))
+ {
+ // The blocktypes are the same, and the blockmetas are not present or are the same
+ a_DstType = E_BLOCK_AIR;
+ }
+ else
+ {
+ // The blocktypes or blockmetas differ
+ a_DstType = E_BLOCK_STONE;
+ }
+}
+
+
+
+
+
/** Combinator used for cBlockArea::msMask merging */
template <bool MetaValid>
void MergeCombinatorMask(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
@@ -1614,6 +1634,73 @@ void cBlockArea::GetRelBlockTypeMeta(int a_RelX, int a_RelY, int a_RelZ, BLOCKTY
+void cBlockArea::GetNonAirCropRelCoords(int & a_MinRelX, int & a_MinRelY, int & a_MinRelZ, int & a_MaxRelX, int & a_MaxRelY, int & a_MaxRelZ, BLOCKTYPE a_IgnoreBlockType)
+{
+ // Check if blocktypes are valid:
+ if (m_BlockTypes == nullptr)
+ {
+ LOGWARNING("%s: BlockTypes have not been read!", __FUNCTION__);
+ a_MinRelX = 1;
+ a_MaxRelX = 0;
+ return;
+ }
+
+ // Walk all the blocks and find the min and max coords for the non-ignored ones:
+ int MaxX = 0, MinX = m_Size.x - 1;
+ int MaxY = 0, MinY = m_Size.y - 1;
+ int MaxZ = 0, MinZ = m_Size.z - 1;
+ for (int y = 0; y < m_Size.y; y++)
+ {
+ for (int z = 0; z < m_Size.z; z++)
+ {
+ for (int x = 0; x < m_Size.x; x++)
+ {
+ if (m_BlockTypes[MakeIndex(x, y, z)] == a_IgnoreBlockType)
+ {
+ continue;
+ }
+ // The block is not ignored, update any coords that need updating:
+ if (x < MinX)
+ {
+ MinX = x;
+ }
+ if (x > MaxX)
+ {
+ MaxX = x;
+ }
+ if (y < MinY)
+ {
+ MinY = y;
+ }
+ if (y > MaxY)
+ {
+ MaxY = y;
+ }
+ if (z < MinZ)
+ {
+ MinZ = z;
+ }
+ if (z > MaxZ)
+ {
+ MaxZ = z;
+ }
+ } // for x
+ } // for z
+ } // for y
+
+ // Assign to the output:
+ a_MinRelX = MinX;
+ a_MinRelY = MinY;
+ a_MinRelZ = MinZ;
+ a_MaxRelX = MaxX;
+ a_MaxRelY = MaxY;
+ a_MaxRelZ = MaxZ;
+}
+
+
+
+
+
int cBlockArea::GetDataTypes(void) const
{
int res = 0;
@@ -2121,10 +2208,12 @@ void cBlockArea::RelSetData(
+
+
template <bool MetasValid>
void cBlockArea::MergeByStrategy(const cBlockArea & a_Src, int a_RelX, int a_RelY, int a_RelZ, eMergeStrategy a_Strategy, const NIBBLETYPE * SrcMetas, NIBBLETYPE * DstMetas)
{
- // Block types are compulsory, block metas are voluntary
+ // Block types are compulsory, block metas are optional
if (!HasBlockTypes() || !a_Src.HasBlockTypes())
{
LOGWARNING("%s: cannot merge because one of the areas doesn't have blocktypes.", __FUNCTION__);
@@ -2230,6 +2319,20 @@ void cBlockArea::MergeByStrategy(const cBlockArea & a_Src, int a_RelX, int a_Rel
return;
} // case msDifference
+ case cBlockArea::msSimpleCompare:
+ {
+ InternalMergeBlocks<MetasValid, MergeCombinatorSimpleCompare<MetasValid> >(
+ m_BlockTypes, a_Src.GetBlockTypes(),
+ DstMetas, SrcMetas,
+ SizeX, SizeY, SizeZ,
+ SrcOffX, SrcOffY, SrcOffZ,
+ DstOffX, DstOffY, DstOffZ,
+ a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(),
+ m_Size.x, m_Size.y, m_Size.z
+ );
+ return;
+ } // case msSimpleCompare
+
case cBlockArea::msMask:
{
InternalMergeBlocks<MetasValid, MergeCombinatorMask<MetasValid> >(