diff options
Diffstat (limited to '')
| -rw-r--r-- | src/Generating/Prefab.cpp | 32 |
1 files changed, 28 insertions, 4 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); } |