1 files changed, 102 insertions, 0 deletions

diff --git a/src/Generating/Caves.h b/src/Generating/Caves.h
new file mode 100644
index 000000000..70cf6fe8c
--- /dev/null
+++ b/src/Generating/Caves.h
@@ -0,0 +1,102 @@
+
+// Caves.h
+
+// Interfaces to the various cave structure generators:
+//   - cStructGenWormNestCaves
+//   - cStructGenMarbleCaves
+//   - cStructGenNetherCaves
+
+
+
+
+
+#pragma once
+
+#include "ComposableGenerator.h"
+#include "../Noise.h"
+
+
+
+
+
+class cStructGenMarbleCaves :
+	public cStructureGen
+{
+public:
+	cStructGenMarbleCaves(int a_Seed) : m_Seed(a_Seed) {}
+	
+protected:
+
+	int m_Seed;
+	
+	// cStructureGen override:
+	virtual void GenStructures(cChunkDesc & a_ChunkDesc) override;
+} ;
+
+
+
+
+
+class cStructGenDualRidgeCaves :
+	public cStructureGen
+{
+public:
+	cStructGenDualRidgeCaves(int a_Seed, float a_Threshold) :
+		m_Noise1(a_Seed),
+		m_Noise2(2 * a_Seed + 19999),
+		m_Seed(a_Seed),
+		m_Threshold(a_Threshold)
+	{
+	}
+	
+protected:
+	cNoise m_Noise1;
+	cNoise m_Noise2;
+	int    m_Seed;
+	float  m_Threshold;
+	
+	// cStructureGen override:
+	virtual void GenStructures(cChunkDesc & a_ChunkDesc) override;
+} ;
+
+
+
+
+
+class cStructGenWormNestCaves :
+	public cStructureGen
+{
+public:
+	cStructGenWormNestCaves(int a_Seed, int a_Size = 64, int a_Grid = 96, int a_MaxOffset = 128) :
+		m_Noise(a_Seed),
+		m_Size(a_Size),
+		m_Grid(a_Grid),
+		m_MaxOffset(a_MaxOffset)
+	{
+	}
+	
+	~cStructGenWormNestCaves();
+	
+protected:
+	class cCaveSystem;  // fwd: Caves.cpp
+	typedef std::list<cCaveSystem *> cCaveSystems;
+
+	cNoise       m_Noise;
+	int          m_Size;  // relative size of the cave systems' caves. Average number of blocks of each initial tunnel
+	int          m_MaxOffset;  // maximum offset of the cave nest origin from the grid cell the nest belongs to
+	int          m_Grid;  // average spacing of the nests
+	cCaveSystems m_Cache;
+	
+	/// Clears everything from the cache
+	void ClearCache(void);
+	
+	/// Returns all caves that *may* intersect the given chunk. All the caves are valid until the next call to this function.
+	void GetCavesForChunk(int a_ChunkX, int a_ChunkZ, cCaveSystems & a_Caves);
+	
+	// cStructGen override:
+	virtual void GenStructures(cChunkDesc & a_ChunkDesc) override;
+} ;
+
+
+
+