Added cBlockArea::msSimpleCompare merge strategy.
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Mattes D
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@ -197,13 +197,14 @@ g_APIDesc =
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baMetas = { Notes = "Operations should work on block metas" },
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baLight = { Notes = "Operations should work on block (emissive) light" },
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baSkyLight = { Notes = "Operations should work on skylight" },
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msDifference = { Notes = "Block becomes air if Src and Dst are the same. Otherwise it becomes the source block." },
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msOverwrite = { Notes = "Src overwrites anything in Dst" },
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msFillAir = { Notes = "Dst is overwritten by Src only where Src has air blocks" },
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msImprint = { Notes = "Src overwrites Dst anywhere where Dst has non-air blocks" },
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msDifference = { Notes = "Block becomes air if 'self' and src are the same. Otherwise it becomes the src block." },
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msFillAir = { Notes = "'self' is overwritten by Src only where 'self' has air blocks" },
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msImprint = { Notes = "Src overwrites 'self' anywhere where 'self' has non-air blocks" },
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msLake = { Notes = "Special mode for merging lake images" },
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msMask = { Notes = "The blocks that are exactly the same are kept in 'self', all differing blocks are replaced by air"},
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msOverwrite = { Notes = "Src overwrites anything in 'self'" },
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msSimpleCompare = { Notes = "The blocks that are exactly the same are replaced with air, all differing blocks are replaced by stone"},
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msSpongePrint = { Notes = "Similar to msImprint, sponge block doesn't overwrite anything, all other blocks overwrite everything"},
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msMask = { Notes = "The blocks that are exactly the same are kept in Dst, all differing blocks are replaced by air"},
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},
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ConstantGroups =
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{
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@ -287,7 +288,7 @@ g_APIDesc =
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<table><tbody><tr>
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<th colspan="2"> area block </th><th> </th><th> Notes </th>
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</tr><tr>
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<th> this </th><th> Src </th><th> result </th><th> </th>
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<th> self </th><th> Src </th><th> result </th><th> </th>
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</tr><tr>
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<td> A </td><td> sponge </td><td> A </td><td> Sponge is the NOP block </td>
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</tr><tr>
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@ -321,7 +322,7 @@ g_APIDesc =
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<table><tbody><tr>
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<th colspan="2"> area block </th><th> </th><th> Notes </th>
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</tr><tr>
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<th> this </th><th> Src </th><th> result </th><th> </th>
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<th> self </th><th> Src </th><th> result </th><th> </th>
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</tr><tr>
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<td> A </td><td> sponge </td><td> A </td><td> Sponge is the NOP block </td>
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</tr><tr>
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@ -337,13 +338,45 @@ g_APIDesc =
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<table><tbody><tr>
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<th colspan="2"> area block </th><th> </th><th> Notes </th>
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</tr><tr>
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<th> this </th><th> Src </th><th> result </th><th> </th>
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<th> self </th><th> Src </th><th> result </th><th> </th>
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</tr><tr>
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<td> A </td><td> A </td><td> A </td><td> Same blocks are kept </td>
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</tr><tr>
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<td> A </td><td> non-A </td><td> air </td><td> Differing blocks are replaced with air </td>
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</tr>
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</tbody></table>
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<p>
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<strong>msDifference</strong> - the blocks that are the same in both areas are replaced with air, all the
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differing blocks are kept from the first area. Meta is used in the comparison, too, two blocks of the
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same type but different meta are considered different.
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</p>
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<table><tbody><tr>
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<th colspan="2"> area block </th><th> </th><th> Notes </th>
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</tr><tr>
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<th> self </th><th> Src </th><th> result </th><th> </th>
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</tr><tr>
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<td> A </td><td> A </td><td> air </td><td> Same blocks are replaced with air </td>
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</tr><tr>
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<td> A </td><td> non-A </td><td> A </td><td> Differing blocks are kept from 'self' </td>
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</tr>
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</tbody></table>
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<p>
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<strong>msSimpleCompare</strong> - the blocks that are the same in both areas are replaced with air, all the
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differing blocks are replaced with stone. Meta is used in the comparison, too, two blocks of the
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same type but different meta are considered different.
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</p>
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<table><tbody><tr>
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<th colspan="2"> area block </th><th> </th><th> Notes </th>
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</tr><tr>
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<th> self </th><th> Src </th><th> result </th><th> </th>
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</tr><tr>
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<td> A </td><td> A </td><td> air </td><td> Same blocks are replaced with air </td>
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</tr><tr>
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<td> A </td><td> non-A </td><td> stone </td><td> Differing blocks are replaced with stone </td>
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</tr>
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</tbody></table>
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]],
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}, -- Merge strategies
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}, -- AdditionalInfo
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@ -245,6 +245,26 @@ void MergeCombinatorDifference(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBL
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/** Combinator used for cBlockArea::msSimpleCompare merging */
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template <bool MetaValid>
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void MergeCombinatorSimpleCompare(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
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{
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if ((a_DstType == a_SrcType) && (!MetaValid || (a_DstMeta == a_SrcMeta)))
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{
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// The blocktypes are the same, and the blockmetas are not present or are the same
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a_DstType = E_BLOCK_AIR;
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}
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else
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{
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// The blocktypes or blockmetas differ
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a_DstType = E_BLOCK_STONE;
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}
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}
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/** Combinator used for cBlockArea::msMask merging */
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template <bool MetaValid>
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void MergeCombinatorMask(BLOCKTYPE & a_DstType, BLOCKTYPE a_SrcType, NIBBLETYPE & a_DstMeta, NIBBLETYPE a_SrcMeta)
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@ -2188,10 +2208,12 @@ void cBlockArea::RelSetData(
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template <bool MetasValid>
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void cBlockArea::MergeByStrategy(const cBlockArea & a_Src, int a_RelX, int a_RelY, int a_RelZ, eMergeStrategy a_Strategy, const NIBBLETYPE * SrcMetas, NIBBLETYPE * DstMetas)
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{
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// Block types are compulsory, block metas are voluntary
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// Block types are compulsory, block metas are optional
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if (!HasBlockTypes() || !a_Src.HasBlockTypes())
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{
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LOGWARNING("%s: cannot merge because one of the areas doesn't have blocktypes.", __FUNCTION__);
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@ -2297,6 +2319,20 @@ void cBlockArea::MergeByStrategy(const cBlockArea & a_Src, int a_RelX, int a_Rel
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return;
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} // case msDifference
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case cBlockArea::msSimpleCompare:
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{
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InternalMergeBlocks<MetasValid, MergeCombinatorSimpleCompare<MetasValid> >(
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m_BlockTypes, a_Src.GetBlockTypes(),
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DstMetas, SrcMetas,
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SizeX, SizeY, SizeZ,
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SrcOffX, SrcOffY, SrcOffZ,
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DstOffX, DstOffY, DstOffZ,
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a_Src.GetSizeX(), a_Src.GetSizeY(), a_Src.GetSizeZ(),
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m_Size.x, m_Size.y, m_Size.z
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);
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return;
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} // case msSimpleCompare
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case cBlockArea::msMask:
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{
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InternalMergeBlocks<MetasValid, MergeCombinatorMask<MetasValid> >(
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@ -54,6 +54,7 @@ public:
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msLake,
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msSpongePrint,
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msDifference,
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msSimpleCompare,
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msMask,
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} ;
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@ -156,6 +157,22 @@ public:
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| A | sponge | A | Sponge is the NOP block
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| * | B | B | Everything else overwrites anything
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msDifference:
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Used to determine the differences between two areas. Only the differring blocks are preserved:
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| area block | |
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| this | Src | result |
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+------+-------+--------+
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| A | A | air | Same blocks are replaced with air
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| A | non-A | A | Differring blocks are kept from "this"
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msSimpleCompare:
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Used to determine the differences between two areas. Blocks that differ are replaced with stone, same blocks are replaced with air
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| area block | |
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| this | Src | result |
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+------+-------+--------+
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| A | A | air | Same blocks are replaced with air
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| A | non-A | stone | Differring blocks are replaced with stone
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msMask:
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Combines two areas, the blocks that are the same are kept, differing ones are reset to air
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| area block | |
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