diff options
Diffstat (limited to '')
| -rw-r--r-- | src/Generating/GridStructGen.cpp | 58 |
1 files changed, 48 insertions, 10 deletions
diff --git a/src/Generating/GridStructGen.cpp b/src/Generating/GridStructGen.cpp index bfa6bccb1..2931df3eb 100644 --- a/src/Generating/GridStructGen.cpp +++ b/src/Generating/GridStructGen.cpp @@ -9,20 +9,51 @@ +/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// cEmptyStructure: + +/** A cStructure descendant representing an empty structure. +Used when the generator descended from cGridStructGen doesn't return any structure, to keep at least the +Origin coords so that the structure isn't queried over and over again. */ +class cEmptyStructure : + public cGridStructGen::cStructure +{ + typedef cGridStructGen::cStructure super; + +public: + cEmptyStructure(int a_GridX, int a_GridZ, int a_OriginX, int a_OriginZ) : + super(a_GridX, a_GridZ, a_OriginX, a_OriginZ) + { + } + +protected: + virtual void DrawIntoChunk(cChunkDesc & a_ChunkDesc) override + { + // Do nothing + } +} ; + + + + + cGridStructGen::cGridStructGen( int a_Seed, int a_GridSizeX, int a_GridSizeZ, + int a_MaxOffsetX, int a_MaxOffsetZ, int a_MaxStructureSizeX, int a_MaxStructureSizeZ, size_t a_MaxCacheSize ) : - m_Seed(a_Seed), + m_Noise(a_Seed), m_GridSizeX(a_GridSizeX), m_GridSizeZ(a_GridSizeZ), + m_MaxOffsetX(a_MaxOffsetX), + m_MaxOffsetZ(a_MaxOffsetZ), m_MaxStructureSizeX(a_MaxStructureSizeX), m_MaxStructureSizeZ(a_MaxStructureSizeZ), m_MaxCacheSize(a_MaxCacheSize) { - size_t NumStructuresPerQuery = (size_t)((m_MaxStructureSizeX / m_GridSizeX + 1) * (m_MaxStructureSizeZ / m_GridSizeZ + 1)); + size_t NumStructuresPerQuery = (size_t)(((m_MaxStructureSizeX + m_MaxOffsetX) / m_GridSizeX + 1) * ((m_MaxStructureSizeZ + m_MaxOffsetZ) / m_GridSizeZ + 1)); if (NumStructuresPerQuery > m_MaxCacheSize) { m_MaxCacheSize = NumStructuresPerQuery * 4; @@ -40,10 +71,10 @@ cGridStructGen::cGridStructGen( void cGridStructGen::GetStructuresForChunk(int a_ChunkX, int a_ChunkZ, cStructurePtrs & a_Structures) { // Calculate the min and max grid coords of the structures to be returned: - int MinBlockX = a_ChunkX * cChunkDef::Width - m_MaxStructureSizeX; - int MinBlockZ = a_ChunkZ * cChunkDef::Width - m_MaxStructureSizeZ; - int MaxBlockX = a_ChunkX * cChunkDef::Width + m_MaxStructureSizeX + cChunkDef::Width - 1; - int MaxBlockZ = a_ChunkZ * cChunkDef::Width + m_MaxStructureSizeZ + cChunkDef::Width - 1; + int MinBlockX = a_ChunkX * cChunkDef::Width - m_MaxStructureSizeX - m_MaxOffsetX; + int MinBlockZ = a_ChunkZ * cChunkDef::Width - m_MaxStructureSizeZ - m_MaxOffsetZ; + int MaxBlockX = a_ChunkX * cChunkDef::Width + m_MaxStructureSizeX + m_MaxOffsetX + cChunkDef::Width - 1; + int MaxBlockZ = a_ChunkZ * cChunkDef::Width + m_MaxStructureSizeZ + m_MaxOffsetZ + cChunkDef::Width - 1; int MinGridX = MinBlockX / m_GridSizeX; int MinGridZ = MinBlockZ / m_GridSizeZ; int MaxGridX = (MaxBlockX + m_GridSizeX - 1) / m_GridSizeX; @@ -75,14 +106,14 @@ void cGridStructGen::GetStructuresForChunk(int a_ChunkX, int a_ChunkZ, cStructur // Create those structures that haven't been in the cache: for (int x = MinGridX; x < MaxGridX; x++) { - int OriginX = x * m_GridSizeX; + int GridX = x * m_GridSizeX; for (int z = MinGridZ; z < MaxGridZ; z++) { - int OriginZ = z * m_GridSizeZ; + int GridZ = z * m_GridSizeZ; bool Found = false; for (cStructurePtrs::const_iterator itr = a_Structures.begin(), end = a_Structures.end(); itr != end; ++itr) { - if (((*itr)->m_OriginX == OriginX) && ((*itr)->m_OriginZ == OriginZ)) + if (((*itr)->m_GridX == GridX) && ((*itr)->m_GridZ == GridZ)) { Found = true; break; @@ -90,7 +121,14 @@ void cGridStructGen::GetStructuresForChunk(int a_ChunkX, int a_ChunkZ, cStructur } // for itr - a_Structures[] if (!Found) { - a_Structures.push_back(CreateStructure(OriginX, OriginZ)); + int OriginX = GridX + ((m_Noise.IntNoise2DInt(GridX + 3, GridZ + 5) / 7) % (m_MaxOffsetX * 2)) - m_MaxOffsetX; + int OriginZ = GridZ + ((m_Noise.IntNoise2DInt(GridX + 5, GridZ + 3) / 7) % (m_MaxOffsetZ * 2)) - m_MaxOffsetZ; + cStructurePtr Structure = CreateStructure(GridX, GridZ, OriginX, OriginZ); + if (Structure.get() == NULL) + { + Structure.reset(new cEmptyStructure(GridX, GridZ, OriginX, OriginZ)); + } + a_Structures.push_back(Structure); } } // for z } // for x |