4 files changed, 106 insertions, 11 deletions

diff --git a/src/Generating/CompoGen.cpp b/src/Generating/CompoGen.cpp
index 6c3b50b4e..cb9c04fd7 100644
--- a/src/Generating/CompoGen.cpp
+++ b/src/Generating/CompoGen.cpp
@@ -290,17 +290,7 @@ void cCompoGenNether::ComposeTerrain(cChunkDesc & a_ChunkDesc, const cChunkDesc:
 				BLOCKTYPE Block = E_BLOCK_AIR;
 				if (Val < m_Threshold)  // Don't calculate if the block should be Netherrack or Soulsand when it's already decided that it's air.
 				{
-					NOISE_DATATYPE NoiseX = ((NOISE_DATATYPE)(BaseX + x)) / 8;
-					NOISE_DATATYPE NoiseY = ((NOISE_DATATYPE)(BaseZ + z)) / 8;
-					NOISE_DATATYPE CompBlock = m_Noise1.CubicNoise3D(NoiseX, (float) (y + Segment) / 2, NoiseY);
-					if (CompBlock < -0.5)
-					{
-						Block = E_BLOCK_SOULSAND;
-					}
-					else
-					{
-						Block = E_BLOCK_NETHERRACK;
-					}
+					Block = E_BLOCK_NETHERRACK;
 				}
 				a_ChunkDesc.SetBlockType(x, y + Segment, z, Block);
 			}
diff --git a/src/Generating/ComposableGenerator.cpp b/src/Generating/ComposableGenerator.cpp
index 4192dfa72..6b8923955 100644
--- a/src/Generating/ComposableGenerator.cpp
+++ b/src/Generating/ComposableGenerator.cpp
@@ -570,6 +570,10 @@ void cComposableGenerator::InitFinishGens(cIniFile & a_IniFile)
 				GridSize, MaxOffset
 			)));
 		}
+		else if (NoCaseCompare(*itr, "SoulsandRims") == 0)
+		{
+			m_FinishGens.push_back(cFinishGenPtr(new cFinishGenSoulsandRims(Seed)));
+		}
 		else if (NoCaseCompare(*itr, "Snow") == 0)
 		{
 			m_FinishGens.push_back(cFinishGenPtr(new cFinishGenSnow));
diff --git a/src/Generating/FinishGen.cpp b/src/Generating/FinishGen.cpp
index 1e8a67dd0..898a9b268 100644
--- a/src/Generating/FinishGen.cpp
+++ b/src/Generating/FinishGen.cpp
@@ -392,6 +392,88 @@ void cFinishGenSprinkleFoliage::GenFinish(cChunkDesc & a_ChunkDesc)
 
 
 ////////////////////////////////////////////////////////////////////////////////
+// cFinishGenSoulsandRims
+
+void cFinishGenSoulsandRims::GenFinish(cChunkDesc & a_ChunkDesc)
+{
+	int ChunkX = a_ChunkDesc.GetChunkX() * cChunkDef::Width;
+	int ChunkZ = a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
+	HEIGHTTYPE MaxHeight = a_ChunkDesc.GetMaxHeight();
+
+	for (int x = 0; x < 16; x++) 
+	{
+		int xx = ChunkX + x;
+		for (int z = 0; z < 16; z++)
+		{
+			int zz = ChunkZ + z;
+
+			// Place soulsand rims when netherrack gets thin
+			for (int y = 2; y < MaxHeight - 2; y++)
+			{
+				// The current block is air. Let's bail ut.
+				BLOCKTYPE Block = a_ChunkDesc.GetBlockType(x, y, z);
+				if (Block == E_BLOCK_AIR)
+				{
+					continue;
+				}
+
+				// Check how many blocks there are above the current block. Don't go higher than 2 blocks, because we already bail out if that's the case.
+				int NumBlocksAbove = 0;
+				for (int I = y + 1; I <= y + 2; I++)
+				{
+					if (a_ChunkDesc.GetBlockType(x, I, z) != E_BLOCK_AIR)
+					{
+						NumBlocksAbove++;
+					}
+					else
+					{
+						break;
+					}
+				}
+
+				// There are too many blocks above the current block.
+				if (NumBlocksAbove == 2)
+				{
+					continue;
+				}
+
+				// Check how many blocks there below the current block. Don't go lower than 2 blocks, because we already bail out if that's the case.
+				int NumBlocksBelow = 0;
+				for (int I = y - 1; I >= y - 2; I--)
+				{
+					if (a_ChunkDesc.GetBlockType(x, I, z) != E_BLOCK_AIR)
+					{
+						NumBlocksBelow++;
+					}
+					else
+					{
+						break;
+					}
+				}
+				
+				// There are too many blocks below the current block
+				if (NumBlocksBelow == 2)
+				{
+					continue;
+				}
+
+				NOISE_DATATYPE NoiseX = ((NOISE_DATATYPE)(xx)) / 32;
+				NOISE_DATATYPE NoiseY = ((NOISE_DATATYPE)(zz)) / 32;
+				NOISE_DATATYPE CompBlock = m_Noise.CubicNoise3D(NoiseX, (float) (y) / 4, NoiseY);
+				if (CompBlock < 0)
+				{
+					a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_SOULSAND);
+				}
+			}
+		}
+	}
+}
+
+
+
+
+
+////////////////////////////////////////////////////////////////////////////////
 // cFinishGenSnow:
 
 void cFinishGenSnow::GenFinish(cChunkDesc & a_ChunkDesc)
diff --git a/src/Generating/FinishGen.h b/src/Generating/FinishGen.h
index 991a85787..d45365683 100644
--- a/src/Generating/FinishGen.h
+++ b/src/Generating/FinishGen.h
@@ -117,6 +117,25 @@ protected:
 
 
 
+class cFinishGenSoulsandRims :
+	public cFinishGen
+{
+public:
+	cFinishGenSoulsandRims(int a_Seed) : 
+		m_Noise(a_Seed)
+	{
+	}
+
+protected:
+	cNoise m_Noise;
+
+	virtual void GenFinish(cChunkDesc & a_ChunkDesc) override;
+} ;
+
+
+
+
+
 class cFinishGenSprinkleFoliage :
 	public cFinishGen
 {