diff options
| -rw-r--r-- | src/Generating/Prefab.cpp | 32 | ||||
| -rw-r--r-- | src/Generating/Prefab.h | 14 |
2 files changed, 39 insertions, 7 deletions
diff --git a/src/Generating/Prefab.cpp b/src/Generating/Prefab.cpp index 145c875a1..1af1faec1 100644 --- a/src/Generating/Prefab.cpp +++ b/src/Generating/Prefab.cpp @@ -21,11 +21,33 @@ cPrefab::cPrefab(const cPrefab::sDef & a_Def) : m_AllowedRotations(a_Def.m_AllowedRotations), m_MergeStrategy(a_Def.m_MergeStrategy) { - m_BlockArea.Create(m_Size); + m_BlockArea[0].Create(m_Size); CharMap cm; ParseCharMap(cm, a_Def.m_CharMap); ParseBlockImage(cm, a_Def.m_Image); ParseConnectors(a_Def.m_Connectors); + + // 1 CCW rotation: + if ((m_AllowedRotations & 0x01) != 0) + { + m_BlockArea[1].CopyFrom(m_BlockArea[0]); + m_BlockArea[1].RotateCCW(); + } + + // 2 rotations are the same as mirroring twice; mirroring is faster because it has no reallocations + if ((m_AllowedRotations & 0x02) != 0) + { + m_BlockArea[2].CopyFrom(m_BlockArea[0]); + m_BlockArea[2].MirrorXY(); + m_BlockArea[2].MirrorYZ(); + } + + // 3 CCW rotations = 1 CW rotation: + if ((m_AllowedRotations & 0x04) != 0) + { + m_BlockArea[3].CopyFrom(m_BlockArea[0]); + m_BlockArea[3].RotateCW(); + } } @@ -38,7 +60,7 @@ void cPrefab::Draw(cChunkDesc & a_Dest, const cPlacedPiece * a_Placement) const int ChunkStartX = a_Dest.GetChunkX() * cChunkDef::Width; int ChunkStartZ = a_Dest.GetChunkZ() * cChunkDef::Width; Placement.Move(-ChunkStartX, 0, -ChunkStartZ); - a_Dest.WriteBlockArea(m_BlockArea, Placement.x, Placement.y, Placement.z, m_MergeStrategy); + a_Dest.WriteBlockArea(m_BlockArea[a_Placement->GetNumCCWRotations()], Placement.x, Placement.y, Placement.z, m_MergeStrategy); } @@ -112,7 +134,7 @@ void cPrefab::ParseBlockImage(const CharMap & a_CharMap, const char * a_BlockIma ASSERT(MappedValue != -1); // Using a letter not defined in the CharMap? BLOCKTYPE BlockType = MappedValue >> 4; NIBBLETYPE BlockMeta = MappedValue & 0x0f; - m_BlockArea.SetRelBlockTypeMeta(x, y, z, BlockType, BlockMeta); + m_BlockArea[0].SetRelBlockTypeMeta(x, y, z, BlockType, BlockMeta); } } } @@ -195,7 +217,9 @@ cCuboid cPrefab::GetHitBox(void) const bool cPrefab::CanRotateCCW(int a_NumRotations) const { - return ((m_AllowedRotations & (1 << (a_NumRotations % 4))) != 0); + // Either zero rotations + // Or the proper bit in m_AllowedRotations is set + return (a_NumRotations == 0) || ((m_AllowedRotations & (1 << ((a_NumRotations + 3) % 4))) != 0); } diff --git a/src/Generating/Prefab.h b/src/Generating/Prefab.h index ec95c909b..d6ab5658f 100644 --- a/src/Generating/Prefab.h +++ b/src/Generating/Prefab.h @@ -22,6 +22,13 @@ declared in this file as well; the Gallery server exports areas in this format. +// fwd: +class cChunkDesc; + + + + + class cPrefab : public cPiece { @@ -51,8 +58,9 @@ protected: typedef int CharMap[256]; - /** The cBlockArea that contains the block definitions for the prefab */ - cBlockArea m_BlockArea; + /** The cBlockArea that contains the block definitions for the prefab. + The index identifies the number of CCW rotations applied (0 = no rotation, 1 = 1 CCW rotation, ...). */ + cBlockArea m_BlockArea[4]; /** The size of the prefab */ Vector3i m_Size; @@ -79,7 +87,7 @@ protected: /** Parses the CharMap in the definition into a CharMap binary data used for translating the definition into BlockArea. */ void ParseCharMap(CharMap & a_CharMapOut, const char * a_CharMapDef); - /** Parses the Image in the definition into m_BlockArea's block types and metas, using the specified CharMap. */ + /** Parses the Image in the definition into m_BlockArea[0]'s block types and metas, using the specified CharMap. */ void ParseBlockImage(const CharMap & a_CharMap, const char * a_BlockImage); /** Parses the connectors definition text into m_Connectors member. */ |