12 files changed, 4900 insertions, 2034 deletions

diff --git a/src/Generating/CMakeLists.txt b/src/Generating/CMakeLists.txt
index 1147744c0..3dacb5066 100644
--- a/src/Generating/CMakeLists.txt
+++ b/src/Generating/CMakeLists.txt
@@ -6,6 +6,7 @@ include_directories ("${PROJECT_SOURCE_DIR}/../")
 
 file(GLOB SOURCE
     "*.cpp"
+    "*.h"
 )
 
 add_library(Generating ${SOURCE})
diff --git a/src/Generating/Caves.cpp b/src/Generating/Caves.cpp
index 98b7c8681..5cad11d2a 100644
--- a/src/Generating/Caves.cpp
+++ b/src/Generating/Caves.cpp
@@ -200,13 +200,14 @@ void cCaveTunnel::Randomize(cNoise & a_Noise)
 	for (int i = 0; i < 4; i++)
 	{
 		// For each already present point, insert a point in between it and its predecessor, shifted randomly.
-		int PrevX = m_Points.front().m_BlockX;
-		int PrevY = m_Points.front().m_BlockY;
-		int PrevZ = m_Points.front().m_BlockZ;
-		int PrevR = m_Points.front().m_Radius;
+		cCaveDefPoint & Point = m_Points.front();
+		int PrevX = Point.m_BlockX;
+		int PrevY = Point.m_BlockY;
+		int PrevZ = Point.m_BlockZ;
+		int PrevR = Point.m_Radius;
 		cCaveDefPoints Pts;
 		Pts.reserve(m_Points.size() * 2 + 1);
-		Pts.push_back(m_Points.front());
+		Pts.push_back(Point);
 		for (cCaveDefPoints::const_iterator itr = m_Points.begin() + 1, end = m_Points.end(); itr != end; ++itr)
 		{
 			int Random = a_Noise.IntNoise3DInt(PrevX, PrevY, PrevZ + i) / 11;
@@ -244,11 +245,12 @@ bool cCaveTunnel::RefineDefPoints(const cCaveDefPoints & a_Src, cCaveDefPoints &
 	a_Dst.clear();
 	a_Dst.reserve(Num * 2 + 2);
 	cCaveDefPoints::const_iterator itr = a_Src.begin() + 1;
-	a_Dst.push_back(a_Src.front());
-	int PrevX = a_Src.front().m_BlockX;
-	int PrevY = a_Src.front().m_BlockY;
-	int PrevZ = a_Src.front().m_BlockZ;
-	int PrevR = a_Src.front().m_Radius;
+	const cCaveDefPoint & Source = a_Src.front();
+	a_Dst.push_back(Source);
+	int PrevX = Source.m_BlockX;
+	int PrevY = Source.m_BlockY;
+	int PrevZ = Source.m_BlockZ;
+	int PrevR = Source.m_Radius;
 	for (int i = 0; i <= Num; ++i, ++itr)
 	{
 		int dx = itr->m_BlockX - PrevX;
@@ -310,9 +312,10 @@ void cCaveTunnel::FinishLinear(void)
 	std::swap(Pts, m_Points);
 
 	m_Points.reserve(Pts.size() * 3);
-	int PrevX = Pts.front().m_BlockX;
-	int PrevY = Pts.front().m_BlockY;
-	int PrevZ = Pts.front().m_BlockZ;
+	cCaveDefPoint & PrevPoint = Pts.front();
+	int PrevX = PrevPoint.m_BlockX;
+	int PrevY = PrevPoint.m_BlockY;
+	int PrevZ = PrevPoint.m_BlockZ;
 	for (cCaveDefPoints::const_iterator itr = Pts.begin() + 1, end = Pts.end(); itr != end; ++itr)
 	{
 		int x1 = itr->m_BlockX;
@@ -433,9 +436,10 @@ void cCaveTunnel::FinishLinear(void)
 
 void cCaveTunnel::CalcBoundingBox(void)
 {
-	m_MinBlockX = m_MaxBlockX = m_Points.front().m_BlockX;
-	m_MinBlockY = m_MaxBlockY = m_Points.front().m_BlockY;
-	m_MinBlockZ = m_MaxBlockZ = m_Points.front().m_BlockZ;
+	cCaveDefPoint & Point = m_Points.front();
+	m_MinBlockX = m_MaxBlockX = Point.m_BlockX;
+	m_MinBlockY = m_MaxBlockY = Point.m_BlockY;
+	m_MinBlockZ = m_MaxBlockZ = Point.m_BlockZ;
 	for (cCaveDefPoints::const_iterator itr = m_Points.begin() + 1, end = m_Points.end(); itr != end; ++itr)
 	{
 		m_MinBlockX = std::min(m_MinBlockX, itr->m_BlockX - itr->m_Radius);
diff --git a/src/Generating/NetherFortGen.cpp b/src/Generating/NetherFortGen.cpp
index 02779a8a3..d90fdeb0a 100644
--- a/src/Generating/NetherFortGen.cpp
+++ b/src/Generating/NetherFortGen.cpp
@@ -71,6 +71,40 @@ public:
 
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Performance test of the NetherFort generator:
+
+/*
+#include "OSSupport/Timer.h"
+static class cNetherFortPerfTest
+{
+public:
+	cNetherFortPerfTest(void)
+	{
+		cTimer Timer;
+		long long StartTime = Timer.GetNowTime();
+		
+		const int GridSize = 512;
+		const int MaxDepth = 12;
+		const int NumIterations = 100;
+		for (int i = 0; i < NumIterations; i++)
+		{
+			cNetherFortGen FortGen(i, GridSize, MaxDepth);
+			delete new cNetherFortGen::cNetherFort(FortGen, 0, 0, GridSize, MaxDepth, i);
+		}
+		
+		long long EndTime = Timer.GetNowTime();
+		printf("%d forts took %lld msec (%f sec) to generate\n", NumIterations, EndTime - StartTime, ((double)(EndTime - StartTime)) / 1000);
+		exit(0);
+	}
+	
+} g_PerfTest;
+//*/
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 // cNetherFortGen:
 
 cNetherFortGen::cNetherFortGen(int a_Seed, int a_GridSize, int a_MaxDepth) :
@@ -80,9 +114,9 @@ cNetherFortGen::cNetherFortGen(int a_Seed, int a_GridSize, int a_MaxDepth) :
 	m_MaxDepth(a_MaxDepth)
 {
 	// Initialize the prefabs:
-	for (size_t i = 0; i < g_NetherFortPrefabs1Count; i++)
+	for (size_t i = 0; i < g_NetherFortPrefabsCount; i++)
 	{
-		cPrefab * Prefab = new cPrefab(g_NetherFortPrefabs1[i]);
+		cPrefab * Prefab = new cPrefab(g_NetherFortPrefabs[i]);
 		m_AllPieces.push_back(Prefab);
 		if (Prefab->HasConnectorType(0))
 		{
@@ -95,15 +129,17 @@ cNetherFortGen::cNetherFortGen(int a_Seed, int a_GridSize, int a_MaxDepth) :
 	}
 	
 	// Initialize the starting piece prefabs:
-	for (size_t i = 0; i < g_NetherFortStartingPrefabs1Count; i++)
+	for (size_t i = 0; i < g_NetherFortStartingPrefabsCount; i++)
 	{
-		m_StartingPieces.push_back(new cPrefab(g_NetherFortStartingPrefabs1[i]));
+		m_StartingPieces.push_back(new cPrefab(g_NetherFortStartingPrefabs[i]));
 	}
 
+	/*
 	// DEBUG: Try one round of placement:
 	cPlacedPieces Pieces;
 	cBFSPieceGenerator pg(*this, a_Seed);
 	pg.PlacePieces(0, 64, 0, a_MaxDepth, Pieces);
+	*/
 }
 
 
@@ -256,6 +292,15 @@ cPieces cNetherFortGen::GetStartingPieces(void)
 
 
 
+int cNetherFortGen::GetPieceWeight(const cPlacedPiece & a_PlacedPiece, const cPiece::cConnector & a_ExistingConnector, const cPiece & a_NewPiece)
+{
+	return ((const cPrefab &)a_NewPiece).GetPieceWeight(a_PlacedPiece, a_ExistingConnector);
+}
+
+
+
+
+
 void cNetherFortGen::PiecePlaced(const cPiece & a_Piece)
 {
 	UNUSED(a_Piece);
diff --git a/src/Generating/NetherFortGen.h b/src/Generating/NetherFortGen.h
index 10ba01396..d51596b9e 100644
--- a/src/Generating/NetherFortGen.h
+++ b/src/Generating/NetherFortGen.h
@@ -26,6 +26,7 @@ public:
 	virtual ~cNetherFortGen();
 	
 protected:
+	friend class cNetherFortPerfTest;  // fwd: NetherFortGen.cpp
 	class cNetherFort;  // fwd: NetherFortGen.cpp
 	typedef std::list<cNetherFort *> cNetherForts;
 	
@@ -77,6 +78,7 @@ protected:
 	// cPiecePool overrides:
 	virtual cPieces GetPiecesWithConnector(int a_ConnectorType) override;
 	virtual cPieces GetStartingPieces(void) override;
+	virtual int GetPieceWeight(const cPlacedPiece & a_PlacedPiece, const cPiece::cConnector & a_ExistingConnector, const cPiece & a_NewPiece) override;
 	virtual void PiecePlaced(const cPiece & a_Piece) override;
 	virtual void Reset(void) override;
 } ;
diff --git a/src/Generating/PieceGenerator.cpp b/src/Generating/PieceGenerator.cpp
index 8999a5ff7..8e9a48be6 100644
--- a/src/Generating/PieceGenerator.cpp
+++ b/src/Generating/PieceGenerator.cpp
@@ -392,14 +392,17 @@ bool cPieceGenerator::TryPlacePieceAtConnector(
 	Connections.reserve(AvailablePieces.size());
 	Vector3i ConnPos = a_Connector.m_Pos;  // The position at which the new connector should be placed - 1 block away from the connector
 	AddFaceDirection(ConnPos.x, ConnPos.y, ConnPos.z, a_Connector.m_Direction);
-	
-	/*
-	// DEBUG:
-	printf("Placing piece at connector pos {%d, %d, %d}, direction %s\n", ConnPos.x, ConnPos.y, ConnPos.z, BlockFaceToString(a_Connector.m_Direction).c_str());
-	//*/
-	
+	int WeightTotal = 0;
 	for (cPieces::iterator itrP = AvailablePieces.begin(), endP = AvailablePieces.end(); itrP != endP; ++itrP)
 	{
+		// Get the relative chance of this piece being generated in this path:
+		int Weight = m_PiecePool.GetPieceWeight(a_ParentPiece, a_Connector, **itrP);
+		if (Weight <= 0)
+		{
+			continue;
+		}
+		
+		// Try fitting each of the piece's connector:
 		cPiece::cConnectors Connectors = (*itrP)->GetConnectors();
 		for (cPiece::cConnectors::iterator itrC = Connectors.begin(), endC = Connectors.end(); itrC != endC; ++itrC)
 		{
@@ -419,7 +422,9 @@ bool cPieceGenerator::TryPlacePieceAtConnector(
 				// Doesn't fit in this rotation
 				continue;
 			}
-			Connections.push_back(cConnection(**itrP, *itrC, NumCCWRotations));
+			// Fits, add it to list of possibile connections:
+			Connections.push_back(cConnection(**itrP, *itrC, NumCCWRotations, Weight));
+			WeightTotal += Weight;
 		}  // for itrC - Connectors[]
 	}  // for itrP - AvailablePieces[]
 	if (Connections.empty())
@@ -427,21 +432,23 @@ bool cPieceGenerator::TryPlacePieceAtConnector(
 		// No available connections, bail out
 		return false;
 	}
+	ASSERT(WeightTotal > 0);
 	
-	// Choose a random connection from the list:
-	int rnd = m_Noise.IntNoise3DInt(a_Connector.m_Pos.x, a_Connector.m_Pos.y, a_Connector.m_Pos.z) / 7;
-	cConnection & Conn = Connections[rnd % Connections.size()];
+	// Choose a random connection from the list, based on the weights:
+	int rnd = (m_Noise.IntNoise3DInt(a_Connector.m_Pos.x, a_Connector.m_Pos.y, a_Connector.m_Pos.z) / 7) % WeightTotal;
+	size_t ChosenIndex = 0;
+	for (cConnections::const_iterator itr = Connections.begin(), end = Connections.end(); itr != end; ++itr, ++ChosenIndex)
+	{
+		rnd -= itr->m_Weight;
+		if (rnd <= 0)
+		{
+			// This is the piece to choose
+			break;
+		}
+	}
+	cConnection & Conn = Connections[ChosenIndex];
 	
 	// Place the piece:
-	/*
-	// DEBUG
-	printf("Chosen connector at {%d, %d, %d}, direction %s, needs %d rotations\n",
-		Conn.m_Connector.m_Pos.x, Conn.m_Connector.m_Pos.y, Conn.m_Connector.m_Pos.z,
-		BlockFaceToString(Conn.m_Connector.m_Direction).c_str(),
-		Conn.m_NumCCWRotations
-	);
-	//*/
-	
 	Vector3i NewPos = Conn.m_Piece->RotatePos(Conn.m_Connector.m_Pos, Conn.m_NumCCWRotations);
 	ConnPos -= NewPos;
 	cPlacedPiece * PlacedPiece = new cPlacedPiece(&a_ParentPiece, *(Conn.m_Piece), ConnPos, Conn.m_NumCCWRotations);
@@ -449,12 +456,6 @@ bool cPieceGenerator::TryPlacePieceAtConnector(
 	
 	// Add the new piece's connectors to the list of free connectors:
 	cPiece::cConnectors Connectors = Conn.m_Piece->GetConnectors();
-	
-	/*
-	// DEBUG:
-	printf("Adding %u connectors to the pool\n", Connectors.size() - 1);
-	//*/
-	
 	for (cPiece::cConnectors::const_iterator itr = Connectors.begin(), end = Connectors.end(); itr != end; ++itr)
 	{
 		if (itr->m_Pos.Equals(Conn.m_Connector.m_Pos))
@@ -524,10 +525,11 @@ void cPieceGenerator::DebugConnectorPool(const cPieceGenerator::cFreeConnectors
 ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 // cPieceGenerator::cConnection:
 
-cPieceGenerator::cConnection::cConnection(cPiece & a_Piece, cPiece::cConnector & a_Connector, int a_NumCCWRotations) :
+cPieceGenerator::cConnection::cConnection(cPiece & a_Piece, cPiece::cConnector & a_Connector, int a_NumCCWRotations, int a_Weight) :
 	m_Piece(&a_Piece),
 	m_Connector(a_Connector),
-	m_NumCCWRotations(a_NumCCWRotations)
+	m_NumCCWRotations(a_NumCCWRotations),
+	m_Weight(a_Weight)
 {
 }
 
diff --git a/src/Generating/PieceGenerator.h b/src/Generating/PieceGenerator.h
index bef9d3463..f4433b947 100644
--- a/src/Generating/PieceGenerator.h
+++ b/src/Generating/PieceGenerator.h
@@ -85,6 +85,13 @@ typedef std::vector<cPiece *> cPieces;
 
 
 
+// fwd:
+class cPlacedPiece;
+
+
+
+
+
 /** This class is an interface that provides pieces for the generator. It can keep track of what pieces were
 placed and adjust the returned piece vectors. */
 class cPiecePool
@@ -101,6 +108,16 @@ public:
 	Multiple starting points are supported, one of the returned piece will be chosen. */
 	virtual cPieces GetStartingPieces(void) = 0;
 	
+	/** Returns the relative weight with which the a_NewPiece is to be selected for placing under a_PlacedPiece through a_ExistingConnector.
+	This allows the pool to tweak the piece's chances, based on the previous pieces in the tree and the connector used.
+	The higher the number returned, the higher the chance the piece will be chosen. 0 means the piece will never be chosen.
+	*/
+	virtual int GetPieceWeight(
+		const cPlacedPiece & a_PlacedPiece,
+		const cPiece::cConnector & a_ExistingConnector,
+		const cPiece & a_NewPiece
+	) { return 1; }
+	
 	/** Called after a piece is placed, to notify the pool that it has been used.
 	The pool may adjust the pieces it will return the next time. */
 	virtual void PiecePlaced(const cPiece & a_Piece) = 0;
@@ -157,8 +174,9 @@ protected:
 		cPiece * m_Piece;                  // The piece being connected
 		cPiece::cConnector m_Connector;    // The piece's connector being used (relative non-rotated coords)
 		int m_NumCCWRotations;             // Number of rotations necessary to match the two connectors
+		int m_Weight;                      // Relative chance that this connection will be chosen
 		
-		cConnection(cPiece & a_Piece, cPiece::cConnector & a_Connector, int a_NumCCWRotations);
+		cConnection(cPiece & a_Piece, cPiece::cConnector & a_Connector, int a_NumCCWRotations, int a_Weight);
 	};
 	typedef std::vector<cConnection> cConnections;
 	
diff --git a/src/Generating/Prefab.cpp b/src/Generating/Prefab.cpp
index 131b6acb2..c0c9e8a13 100644
--- a/src/Generating/Prefab.cpp
+++ b/src/Generating/Prefab.cpp
@@ -23,6 +23,10 @@ static const cPrefab::sDef g_TestPrefabDef =
 	// Size:
 	7, 6, 7,  // SizeX = 7, SizeY = 6, SizeZ = 7
 
+	// Hitbox (relative to bounding box):
+	0, 0, 0,  // MinX, MinY, MinZ
+	6, 5, 6,  // MaxX, MaxY, MaxZ
+	
 	// Block definitions:
 	".:  0: 0\n"  /* 0 */
 	"a:112: 0\n"  /* netherbrick */
@@ -91,7 +95,19 @@ static const cPrefab::sDef g_TestPrefabDef =
 	7,  /* 1, 2, 3 CCW rotations */
 	
 	// Merge strategy:
-	cBlockArea::msImprint
+	cBlockArea::msImprint,
+	
+	// ShouldExtendFloor:
+	false,
+
+	// DefaultWeight:
+	10,
+
+	// DepthWeight:
+	"",
+
+	// AddWeightIfSame:
+	1000,
 };
 
 static cPrefab g_TestPrefab(g_TestPrefabDef);
@@ -103,15 +119,22 @@ static cPrefab g_TestPrefab(g_TestPrefabDef);
 
 cPrefab::cPrefab(const cPrefab::sDef & a_Def) :
 	m_Size(a_Def.m_SizeX, a_Def.m_SizeY, a_Def.m_SizeZ),
-	m_HitBox(0, 0, 0, a_Def.m_SizeX - 1, a_Def.m_SizeY - 1, a_Def.m_SizeZ - 1),
+	m_HitBox(
+		a_Def.m_HitboxMinX, a_Def.m_HitboxMinY, a_Def.m_HitboxMinZ,
+		a_Def.m_HitboxMaxX, a_Def.m_HitboxMaxY, a_Def.m_HitboxMaxZ
+	),
 	m_AllowedRotations(a_Def.m_AllowedRotations),
-	m_MergeStrategy(a_Def.m_MergeStrategy)
+	m_MergeStrategy(a_Def.m_MergeStrategy),
+	m_ShouldExtendFloor(a_Def.m_ShouldExtendFloor),
+	m_DefaultWeight(a_Def.m_DefaultWeight),
+	m_AddWeightIfSame(a_Def.m_AddWeightIfSame)
 {
 	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);
+	ParseDepthWeight(a_Def.m_DepthWeight);
 	
 	// 1 CCW rotation:
 	if ((m_AllowedRotations & 0x01) != 0)
@@ -142,12 +165,53 @@ cPrefab::cPrefab(const cPrefab::sDef & a_Def) :
 
 void cPrefab::Draw(cChunkDesc & a_Dest, const cPlacedPiece * a_Placement) const
 {
+	// Draw the basic image:
 	Vector3i Placement = a_Placement->GetCoords();
 	int ChunkStartX = a_Dest.GetChunkX() * cChunkDef::Width;
 	int ChunkStartZ = a_Dest.GetChunkZ() * cChunkDef::Width;
 	Placement.Move(-ChunkStartX, 0, -ChunkStartZ);
-	a_Dest.WriteBlockArea(m_BlockArea[a_Placement->GetNumCCWRotations()], Placement.x, Placement.y, Placement.z, m_MergeStrategy);
+	const cBlockArea & Image = m_BlockArea[a_Placement->GetNumCCWRotations()];
+	a_Dest.WriteBlockArea(Image, Placement.x, Placement.y, Placement.z, m_MergeStrategy);
 	
+	// If requested, draw the floor (from the bottom of the prefab down to the nearest non-air)
+	int MaxX = Image.GetSizeX();
+	int MaxZ = Image.GetSizeZ();
+	for (int z = 0; z < MaxZ; z++)
+	{
+		int RelZ = Placement.z + z;
+		if ((RelZ < 0) || (RelZ >= cChunkDef::Width))
+		{
+			// Z coord outside the chunk
+			continue;
+		}
+		for (int x = 0; x < MaxX; x++)
+		{
+			int RelX = Placement.x + x;
+			if ((RelX < 0) || (RelX >= cChunkDef::Width))
+			{
+				// X coord outside the chunk
+				continue;
+			}
+			BLOCKTYPE BlockType;
+			NIBBLETYPE BlockMeta;
+			Image.GetRelBlockTypeMeta(x, 0, z, BlockType, BlockMeta);
+			if ((BlockType == E_BLOCK_AIR) || (BlockType == E_BLOCK_SPONGE))
+			{
+				// Do not expand air nor sponge blocks
+				continue;
+			}
+			for (int y = Placement.y - 1; y >= 0; y--)
+			{
+				BLOCKTYPE ExistingBlock = a_Dest.GetBlockType(RelX, y, RelZ);
+				if (ExistingBlock != E_BLOCK_AIR)
+				{
+					// End the expansion for this column, reached the end
+					break;
+				}
+				a_Dest.SetBlockTypeMeta(RelX, y, RelZ, BlockType, BlockMeta);
+			}  // for y
+		}  // for x
+	}  // for z
 }
 
 
@@ -170,6 +234,26 @@ bool cPrefab::HasConnectorType(int a_ConnectorType) const
 
 
 
+int cPrefab::GetPieceWeight(const cPlacedPiece & a_PlacedPiece, const cPiece::cConnector & a_ExistingConnector) const
+{
+	// Use the default or per-depth weight:
+	cDepthWeight::const_iterator itr = m_DepthWeight.find(a_PlacedPiece.GetDepth() + 1);
+	int res = (itr == m_DepthWeight.end()) ? m_DefaultWeight : itr->second;
+	
+	// If the piece is the same as the parent, apply the m_AddWeightIfSame modifier:
+	const cPiece * ParentPiece = &a_PlacedPiece.GetPiece();
+	const cPiece * ThisPiece = this;
+	if (ThisPiece == ParentPiece)
+	{
+		res += m_AddWeightIfSame;
+	}
+	return res;
+}
+
+
+
+
+
 void cPrefab::ParseCharMap(CharMap & a_CharMapOut, const char * a_CharMapDef)
 {
 	ASSERT(a_CharMapDef != NULL);
@@ -277,6 +361,54 @@ void cPrefab::ParseConnectors(const char * a_ConnectorsDef)
 
 
 
+void cPrefab::ParseDepthWeight(const char * a_DepthWeightDef)
+{
+	// The member needn't be defined at all, if so, skip:
+	if (a_DepthWeightDef == NULL)
+	{
+		return;
+	}
+	
+	// Split into individual records: "Record | Record | Record"
+	AStringVector Defs = StringSplitAndTrim(a_DepthWeightDef, "|");
+	
+	// Add each record's contents:
+	for (AStringVector::const_iterator itr = Defs.begin(), end = Defs.end(); itr != end; ++itr)
+	{
+		// Split into components: "Depth : Weight"
+		AStringVector Components = StringSplitAndTrim(*itr, ":");
+		if (Components.size() != 2)
+		{
+			LOGWARNING("Bad prefab DepthWeight record: \"%s\", skipping.", itr->c_str());
+			continue;
+		}
+		
+		// Parse depth:
+		int Depth = atoi(Components[0].c_str());
+		if ((Depth == 0) && (Components[0] != "0"))
+		{
+			LOGWARNING("Bad prefab DepthWeight record, cannot parse depth \"%s\", skipping.", Components[0].c_str());
+			continue;
+		}
+		
+		// Parse weight:
+		int Weight = atoi(Components[1].c_str());
+		if ((Weight == 0) && (Components[1] != "0"))
+		{
+			LOGWARNING("Bad prefab DepthWeight record, cannot parse weight \"%s\", skipping.", Components[1].c_str());
+			continue;
+		}
+		
+		// Save to map:
+		ASSERT(m_DepthWeight.find(Depth) == m_DepthWeight.end());  // Not a duplicate
+		m_DepthWeight[Depth] = Weight;
+	}  // for itr - Defs[]
+}
+
+
+
+
+
 cPiece::cConnectors cPrefab::GetConnectors(void) const
 {
 	return m_Connectors;
diff --git a/src/Generating/Prefab.h b/src/Generating/Prefab.h
index 04c4f09da..37db2ff16 100644
--- a/src/Generating/Prefab.h
+++ b/src/Generating/Prefab.h
@@ -37,11 +37,51 @@ public:
 		int m_SizeX;
 		int m_SizeY;
 		int m_SizeZ;
+		
+		/** The hitbox used for collision-checking between prefabs. Relative to the bounds. */
+		int m_HitboxMinX, m_HitboxMinY, m_HitboxMinZ;
+		int m_HitboxMaxX, m_HitboxMaxY, m_HitboxMaxZ;
+		
+		/** The mapping between characters in m_Image and the blocktype / blockmeta.
+		Format: "Char: BlockType: BlockMeta \n Char: BlockType : BlockMeta \n ..." */
 		const char * m_CharMap;
+		
+		/** The actual image to be used for the prefab. Organized YZX (Y changes the least often).
+		Each character represents a single block, the type is mapped through m_CharMap. */
 		const char * m_Image;
+		
+		/** List of connectors.
+		Format: "Type: X, Y, Z : Direction \n Type : X, Y, Z : Direction \n ...".
+		Type is an arbitrary number, Direction is the BlockFace constant value (0 .. 5). */
 		const char * m_Connectors;
+		
+		/** Bitmask specifying the allowed rotations.
+		N rotations CCW are allowed if bit N is set. */
 		int m_AllowedRotations;
+		
+		/** The merge strategy to use while drawing the prefab. */
 		cBlockArea::eMergeStrategy m_MergeStrategy;
+		
+		/** If set to true, the prefab will extend its lowermost blocks until a solid block is found,
+		thus creating a foundation for the prefab. This is used for houses to be "on the ground", as well as
+		nether fortresses not to float. */
+		bool m_ShouldExtendFloor;
+
+		/** Chance of this piece being used, if no other modifier is active. */
+		int m_DefaultWeight;
+		
+		/** Chances of this piece being used, per depth of the generated piece tree.
+		The starting piece has a depth of 0, the pieces connected to it are depth 1, etc.
+		The specified depth stands for the depth of the new piece (not the existing already-placed piece),
+		so valid depths start at 1.
+		Format: "Depth : Weight | Depth : Weight | Depth : Weight ..."
+		Depths that are not specified will use the m_DefaultWeight value. */
+		const char * m_DepthWeight;
+		
+		/** The weight to add to this piece's base per-depth chance if the previous piece is the same.
+		Can be positive or negative.
+		This is used e. g. to make nether bridges prefer spanning multiple segments or to penalize turrets next to each other. */
+		int m_AddWeightIfSame;
 	};
 	
 	cPrefab(const sDef & a_Def);
@@ -51,6 +91,10 @@ public:
 	
 	/** Returns true if the prefab has any connector of the specified type. */
 	bool HasConnectorType(int a_ConnectorType) const;
+	
+	/** Returns the weight (chance) of this prefab generating as the next piece after the specified placed piece.
+	PiecePool implementations can use this for their GetPieceWeight() implementations. */
+	int GetPieceWeight(const cPlacedPiece & a_PlacedPiece, const cPiece::cConnector & a_ExistingConnector) const;
 
 protected:
 	/** Packs complete definition of a single block, for per-letter assignment. */
@@ -60,9 +104,12 @@ protected:
 		NIBBLETYPE m_BlockMeta;
 	};
 	
-	/** Maps letters in the sDef::m_Image onto a number, BlockType * 16 | BlockMeta */
+	/** Maps letters in the sDef::m_Image onto a sBlockTypeDef block type definition. */
 	typedef sBlockTypeDef CharMap[256];
 	
+	/** Maps generator tree depth to weight. */
+	typedef std::map<int, int> cDepthWeight;
+	
 	
 	/** 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, ...). */
@@ -71,7 +118,7 @@ protected:
 	/** The size of the prefab */
 	Vector3i m_Size;
 	
-	/** The hitbox of the prefab. In first version is the same as the m_BlockArea dimensions */
+	/** The hitbox used for collision-checking between prefabs. */
 	cCuboid m_HitBox;
 	
 	/** The connectors through which the piece connects to other pieces */
@@ -82,6 +129,26 @@ protected:
 	
 	/** The merge strategy to use when drawing the prefab into a block area */
 	cBlockArea::eMergeStrategy m_MergeStrategy;
+
+	/** If set to true, the prefab will extend its lowermost blocks until a solid block is found,
+	thus creating a foundation for the prefab. This is used for houses to be "on the ground", as well as
+	nether fortresses not to float. */
+	bool m_ShouldExtendFloor;
+
+	/** Chance of this piece being used, if no other modifier is active. */
+	int m_DefaultWeight;
+	
+	/** Chances of this piece being used, per depth of the generated piece tree.
+	The starting piece has a depth of 0, the pieces connected to it are depth 1, etc.
+	The specified depth stands for the depth of the new piece (not the existing already-placed piece),
+	so valid depths start at 1.
+	Depths that are not specified will use the m_DefaultWeight value. */
+	cDepthWeight m_DepthWeight;
+	
+	/** The weight to add to this piece's base per-depth chance if the previous piece is the same.
+	Can be positive or negative.
+	This is used e. g. to make nether bridges prefer spanning multiple segments or to penalize turrets next to each other. */
+	int m_AddWeightIfSame;
 	
 	
 	// cPiece overrides:	
@@ -98,6 +165,9 @@ protected:
 	
 	/** Parses the connectors definition text into m_Connectors member. */
 	void ParseConnectors(const char * a_ConnectorsDef);
+	
+	/** Parses the per-depth weight into m_DepthWeight member. */
+	void ParseDepthWeight(const char * a_DepthWeightDef);
 };
 
 
diff --git a/src/Generating/Prefabs/CMakeLists.txt b/src/Generating/Prefabs/CMakeLists.txt
index 1e60447e7..a1f09112d 100644
--- a/src/Generating/Prefabs/CMakeLists.txt
+++ b/src/Generating/Prefabs/CMakeLists.txt
@@ -6,6 +6,7 @@ include_directories ("${PROJECT_SOURCE_DIR}/../../")
 
 file(GLOB SOURCE
     "*.cpp"
+    "*.h"
 )
 
 add_library(Generating_Prefabs ${SOURCE})
diff --git a/src/Generating/Prefabs/NetherFortPrefabs.cpp b/src/Generating/Prefabs/NetherFortPrefabs.cpp
index 5e8685e32..d2ef5663d 100644
--- a/src/Generating/Prefabs/NetherFortPrefabs.cpp
+++ b/src/Generating/Prefabs/NetherFortPrefabs.cpp
@@ -1,7 +1,10 @@
 
 // NetherFortPrefabs.cpp
 
-// Defines all the prefabs for nether forts
+// Defines the prefabs in the group NetherFort
+
+// NOTE: This file has been generated automatically by GalExport!
+// Any manual changes will be overwritten by the next automatic export!
 
 #include "Globals.h"
 #include "NetherFortPrefabs.h"
@@ -10,347 +13,437 @@
 
 
 
-/*
-The nether fortress has two types of connectors, Outer and Inner. Outer is Type 0, Inner is Type 1.
-*/
-
-
-
-
-
-const cPrefab::sDef g_NetherFortPrefabs1[] =
+const cPrefab::sDef g_NetherFortPrefabs[] =
 {
 	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// BalconyCorridor:
-	// The data has been exported from gallery Nether, area index 37, ID 288
+	// The data has been exported from the gallery Nether, area index 37, ID 288, created by Aloe_vera
 	{
 		// Size:
 		13, 7, 9,  // SizeX = 13, SizeY = 7, SizeZ = 9
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		12, 6, 8,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
+		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
-		"b: 19: 0\n"  /* sponge */
-		"c:114: 4\n"  /* netherbrickstairs */
-		"d:114: 7\n"  /* netherbrickstairs */
-		"e:114: 5\n"  /* netherbrickstairs */
-		"f: 44: 6\n"  /* step */
-		"g:113: 0\n"  /* netherbrickfence */
-		"h:114: 2\n"  /* netherbrickstairs */
-		"i:114: 3\n"  /* netherbrickstairs */
-		"j:114: 0\n"  /* netherbrickstairs */
-		"k:114: 1\n"  /* netherbrickstairs */
-		".:  0: 0\n"  /* air */,
+		"b:114: 4\n"  /* netherbrickstairs */
+		"c:114: 7\n"  /* netherbrickstairs */
+		"d:114: 5\n"  /* netherbrickstairs */
+		"e: 44: 6\n"  /* step */
+		"f:113: 0\n"  /* netherbrickfence */
+		"g:114: 2\n"  /* netherbrickstairs */
+		"h:114: 3\n"  /* netherbrickstairs */
+		"i:114: 0\n"  /* netherbrickstairs */
+		"j:114: 1\n"  /* netherbrickstairs */
+		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaa"
+		/*  5 */ "mmmmaaaaammmm"
+		/*  6 */ "mmmmmmmmmmmmm"
+		/*  7 */ "mmmmmmmmmmmmm"
+		/*  8 */ "mmmmmmmmmmmmm"
+
 		// Level 1
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"bbbbaaaaabbbb"
-		"bbbbbbbbbbbbb"
-		"bbbbbbbbbbbbb"
-		"bbbbbbbbbbbbb"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaa"
+		/*  4 */ "aaaa.aaa.aaaa"
+		/*  5 */ "mmbcaaaaacdmm"
+		/*  6 */ "mmmbcccccdmmm"
+		/*  7 */ "mmmmmmmmmmmmm"
+		/*  8 */ "mmmmmmmmmmmmm"
 
 		// Level 2
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaa.aaa.aaaa"
-		"bbcdaaaaadebb"
-		"bbbcdddddebbb"
-		"bbbbbbbbbbbbb"
-		"bbbbbbbbbbbbb"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaaaaaaaaaaa"
+		/*  1 */ "............."
+		/*  2 */ "............."
+		/*  3 */ "............."
+		/*  4 */ "aaaa.eee.aaaa"
+		/*  5 */ "mmaaaaaaaaamm"
+		/*  6 */ "mmaaaaaaaaamm"
+		/*  7 */ "mmaaaaaaaaamm"
+		/*  8 */ "mmaaaaaaaaamm"
 
 		// Level 3
-		"aaaaaaaaaaaaa"
-		"............."
-		"............."
-		"............."
-		"aaaa.fff.aaaa"
-		"bbaaaaaaaaabb"
-		"bbaaaaaaaaabb"
-		"bbaaaaaaaaabb"
-		"bbaaaaaaaaabb"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "afafafafafafa"
+		/*  1 */ "............."
+		/*  2 */ "............."
+		/*  3 */ "............."
+		/*  4 */ "afaa.....aafa"
+		/*  5 */ "mmaaa...aaamm"
+		/*  6 */ "mmf.......fmm"
+		/*  7 */ "mmf.......fmm"
+		/*  8 */ "mmfffffffffmm"
 
 		// Level 4
-		"agagagagagaga"
-		"............."
-		"............."
-		"............."
-		"agaa.....aaga"
-		"bbaaa...aaabb"
-		"bbg.......gbb"
-		"bbg.......gbb"
-		"bbgggggggggbb"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "afafafafafafa"
+		/*  1 */ "............."
+		/*  2 */ "............."
+		/*  3 */ "............."
+		/*  4 */ "afaa.....aafa"
+		/*  5 */ "mmaaa...aaamm"
+		/*  6 */ "mm.........mm"
+		/*  7 */ "mm.........mm"
+		/*  8 */ "mm.........mm"
 
 		// Level 5
-		"agagagagagaga"
-		"............."
-		"............."
-		"............."
-		"agaa.....aaga"
-		"bbaaa...aaabb"
-		"bb.........bb"
-		"bb.........bb"
-		"bb.........bb"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "afafafafafafa"
+		/*  1 */ "............."
+		/*  2 */ "............."
+		/*  3 */ "............."
+		/*  4 */ "afaa.....aafa"
+		/*  5 */ "mmaaa...aaamm"
+		/*  6 */ "mm.........mm"
+		/*  7 */ "mm.........mm"
+		/*  8 */ "mm.........mm"
 
 		// Level 6
-		"agagagagagaga"
-		"............."
-		"............."
-		"............."
-		"agaa.....aaga"
-		"bbaaa...aaabb"
-		"bb.........bb"
-		"bb.........bb"
-		"bb.........bb"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "ggggggggggggg"
+		/*  1 */ "aaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaa"
+		/*  4 */ "hhiaaaaaaahhh"
+		/*  5 */ "mmihhhhhhhjmm"
+		/*  6 */ "mmmmmmmmmmmmm"
+		/*  7 */ "mmmmmmmmmmmmm"
+		/*  8 */ "mmmmmmmmmmmmm",
+
+		// Connectors:
+		"1: 12, 2, 2: 5\n"  /* Type 1, direction X+ */
+		"1: 0, 2, 2: 4\n"  /* Type 1, direction X- */,
 
-		// Level 7
-		"hhhhhhhhhhhhh"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"iijaaaaaaaiii"
-		"bbjiiiiiiikbb"
-		"bbbbbbbbbbbbb"
-		"bbbbbbbbbbbbb"
-		"bbbbbbbbbbbbb",
-		
-		// Connections:
-		"1:  0, 2, 2: 4\n"  /* Type 1, BLOCK_FACE_XM */
-		"1: 12, 2, 2: 5\n"  /* Type 1, BLOCK_FACE_XP */,
-		
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		20,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		0,
 	},  // BalconyCorridor
 
 
+
 	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// BalconyTee2:
-	// The data has been exported from gallery Nether, area index 38, ID 289
+	// The data has been exported from the gallery Nether, area index 38, ID 289, created by Aloe_vera
 	{
 		// Size:
 		13, 7, 11,  // SizeX = 13, SizeY = 7, SizeZ = 11
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		12, 6, 10,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
-		"a: 19: 0\n"  /* sponge */
-		"b:112: 0\n"  /* netherbrick */
-		"c:114: 4\n"  /* netherbrickstairs */
-		"d:114: 7\n"  /* netherbrickstairs */
-		"e:114: 5\n"  /* netherbrickstairs */
-		"f: 44: 6\n"  /* step */
-		"g:113: 0\n"  /* netherbrickfence */
-		"h:114: 0\n"  /* netherbrickstairs */
-		"i:114: 1\n"  /* netherbrickstairs */
-		"j:114: 2\n"  /* netherbrickstairs */
-		"k:114: 3\n"  /* netherbrickstairs */
-		".:  0: 0\n"  /* air */,
+		".:  0: 0\n"  /* air */
+		"a:112: 0\n"  /* netherbrick */
+		"b:114: 4\n"  /* netherbrickstairs */
+		"c:114: 7\n"  /* netherbrickstairs */
+		"d:114: 5\n"  /* netherbrickstairs */
+		"e: 44: 6\n"  /* step */
+		"f:113: 0\n"  /* netherbrickfence */
+		"g:114: 0\n"  /* netherbrickstairs */
+		"h:114: 1\n"  /* netherbrickstairs */
+		"i:114: 2\n"  /* netherbrickstairs */
+		"j:114: 3\n"  /* netherbrickstairs */
+		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmmaaaaammmm"
+		/*  1 */ "mmmmaaaaammmm"
+		/*  2 */ "aaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaa"
+		/*  5 */ "aaaaaaaaaaaaa"
+		/*  6 */ "aaaaaaaaaaaaa"
+		/*  7 */ "mmmmaaaaammmm"
+		/*  8 */ "mmmmmmmmmmmmm"
+		/*  9 */ "mmmmmmmmmmmmm"
+		/* 10 */ "mmmmmmmmmmmmm"
+
 		// Level 1
-		"aaaabbbbbaaaa"
-		"aaaabbbbbaaaa"
-		"bbbbbbbbbbbbb"
-		"bbbbbbbbbbbbb"
-		"bbbbbbbbbbbbb"
-		"bbbbbbbbbbbbb"
-		"bbbbbbbbbbbbb"
-		"aaaabbbbbaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmmaaaaammmm"
+		/*  1 */ "mmmmaaaaammmm"
+		/*  2 */ "aaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaa"
+		/*  5 */ "aaaaaaaaaaaaa"
+		/*  6 */ "aaaa.aaa.aaaa"
+		/*  7 */ "mmbcaaaaacdmm"
+		/*  8 */ "mmmbcccccdmmm"
+		/*  9 */ "mmmmmmmmmmmmm"
+		/* 10 */ "mmmmmmmmmmmmm"
 
 		// Level 2
-		"aaaabbbbbaaaa"
-		"aaaabbbbbaaaa"
-		"bbbbbbbbbbbbb"
-		"bbbbbbbbbbbbb"
-		"bbbbbbbbbbbbb"
-		"bbbbbbbbbbbbb"
-		"bbbb.bbb.bbbb"
-		"aacdbbbbbdeaa"
-		"aaacdddddeaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmma...ammmm"
+		/*  1 */ "mmmma...ammmm"
+		/*  2 */ "aaaaa...aaaaa"
+		/*  3 */ "............."
+		/*  4 */ "............."
+		/*  5 */ "............."
+		/*  6 */ "aaaa.eee.aaaa"
+		/*  7 */ "mmaaaaaaaaamm"
+		/*  8 */ "mmaaaaaaaaamm"
+		/*  9 */ "mmaaaaaaaaamm"
+		/* 10 */ "mmaaaaaaaaamm"
 
 		// Level 3
-		"aaaab...baaaa"
-		"aaaab...baaaa"
-		"bbbbb...bbbbb"
-		"............."
-		"............."
-		"............."
-		"bbbb.fff.bbbb"
-		"aabbbbbbbbbaa"
-		"aabbbbbbbbbaa"
-		"aabbbbbbbbbaa"
-		"aabbbbbbbbbaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmma...ammmm"
+		/*  1 */ "mmmmf...fmmmm"
+		/*  2 */ "afafa...afafa"
+		/*  3 */ "............."
+		/*  4 */ "............."
+		/*  5 */ "............."
+		/*  6 */ "afaa.....aafa"
+		/*  7 */ "mmaaa...aaamm"
+		/*  8 */ "mmf.......fmm"
+		/*  9 */ "mmf.......fmm"
+		/* 10 */ "mmfffffffffmm"
 
 		// Level 4
-		"aaaab...baaaa"
-		"aaaag...gaaaa"
-		"bgbgb...bgbgb"
-		"............."
-		"............."
-		"............."
-		"bgbb.....bbgb"
-		"aabbb...bbbaa"
-		"aag.......gaa"
-		"aag.......gaa"
-		"aagggggggggaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmma...ammmm"
+		/*  1 */ "mmmmf...fmmmm"
+		/*  2 */ "afafa...afafa"
+		/*  3 */ "............."
+		/*  4 */ "............."
+		/*  5 */ "............."
+		/*  6 */ "afaa.....aafa"
+		/*  7 */ "mmaaa...aaamm"
+		/*  8 */ "mm.........mm"
+		/*  9 */ "mm.........mm"
+		/* 10 */ "mm.........mm"
 
 		// Level 5
-		"aaaab...baaaa"
-		"aaaag...gaaaa"
-		"bgbgb...bgbgb"
-		"............."
-		"............."
-		"............."
-		"bgbb.....bbgb"
-		"aabbb...bbbaa"
-		"aa.........aa"
-		"aa.........aa"
-		"aa.........aa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmma...ammmm"
+		/*  1 */ "mmmmf...fmmmm"
+		/*  2 */ "afafa...afafa"
+		/*  3 */ "............."
+		/*  4 */ "............."
+		/*  5 */ "............."
+		/*  6 */ "afaa.....aafa"
+		/*  7 */ "mmaaa...aaamm"
+		/*  8 */ "mm.........mm"
+		/*  9 */ "mm.........mm"
+		/* 10 */ "mm.........mm"
 
 		// Level 6
-		"aaaab...baaaa"
-		"aaaag...gaaaa"
-		"bgbgb...bgbgb"
-		"............."
-		"............."
-		"............."
-		"bgbb.....bbgb"
-		"aabbb...bbbaa"
-		"aa.........aa"
-		"aa.........aa"
-		"aa.........aa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmmgaaahmmmm"
+		/*  1 */ "mmmmgaaahmmmm"
+		/*  2 */ "iiiiiaaaiiiii"
+		/*  3 */ "aaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaa"
+		/*  5 */ "aaaaaaaaaaaaa"
+		/*  6 */ "jjgaaaaaaajjj"
+		/*  7 */ "mmgjjjjjjjhmm"
+		/*  8 */ "mmmmmmmmmmmmm"
+		/*  9 */ "mmmmmmmmmmmmm"
+		/* 10 */ "mmmmmmmmmmmmm",
+
+		// Connectors:
+		"1: 12, 2, 4: 5\n"  /* Type 1, direction X+ */
+		"1: 6, 2, 0: 2\n"  /* Type 1, direction Z- */
+		"1: 0, 2, 4: 4\n"  /* Type 1, direction X- */,
 
-		// Level 7
-		"aaaahbbbiaaaa"
-		"aaaahbbbiaaaa"
-		"jjjjjbbbjjjjj"
-		"bbbbbbbbbbbbb"
-		"bbbbbbbbbbbbb"
-		"bbbbbbbbbbbbb"
-		"kkhbbbbbbbkkk"
-		"aahkkkkkkkiaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa",
-		
-		// Connections:
-		"1:  0, 2, 4: 4\n"  /* Type 1, BLOCK_FACE_XM */
-		"1: 12, 2, 4: 5\n"  /* Type 1, BLOCK_FACE_XP */
-		"1:  6, 2, 0: 2\n"  /* Type 1, BLOCK_FACE_ZM */,
-		
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		20,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		0,
 	},  // BalconyTee2
 
 
+
 	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-	// BlazePlatform
-	// The data has been exported from gallery Nether, area index 26, ID 276
+	// BlazePlatform:
+	// The data has been exported from the gallery Nether, area index 26, ID 276, created by tonibm1999
 	{
 		// Size:
 		10, 7, 7,  // SizeX = 10, SizeY = 7, SizeZ = 7
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		9, 6, 6,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
 		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
 		"b: 52: 0\n"  /* mobspawner */
-		"c:113: 0\n"  /* netherbrickfence */,
+		"c:113: 0\n"  /* netherbrickfence */
+		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*              */
+		/*    *   0123456789 */
+		/*  0 */ "mmmmmmmmmm"
+		/*  1 */ "aaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaa"
+		/*  5 */ "aaaaaaaaaa"
+		/*  6 */ "mmmmmmmmmm"
+
 		// Level 1
-		".........."
-		"aaaaaaaaaa"
-		"aaaaaaaaaa"
-		"aaaaaaaaaa"
-		"aaaaaaaaaa"
-		"aaaaaaaaaa"
-		".........."
+		/* z\x*              */
+		/*    *   0123456789 */
+		/*  0 */ "mmmmmmmmmm"
+		/*  1 */ "aaaaaaaaaa"
+		/*  2 */ "..aaaaaaaa"
+		/*  3 */ "..aaaaaaaa"
+		/*  4 */ "..aaaaaaaa"
+		/*  5 */ "aaaaaaaaaa"
+		/*  6 */ "mmmmmmmmmm"
 
 		// Level 2
-		".........."
-		"aaaaaaaaaa"
-		"..aaaaaaaa"
-		"..aaaaaaaa"
-		"..aaaaaaaa"
-		"aaaaaaaaaa"
-		".........."
+		/* z\x*              */
+		/*    *   0123456789 */
+		/*  0 */ "mmmmaaaaaa"
+		/*  1 */ "aaaaaaaaaa"
+		/*  2 */ "...aaaaaaa"
+		/*  3 */ "...aaaaaaa"
+		/*  4 */ "...aaaaaaa"
+		/*  5 */ "aaaaaaaaaa"
+		/*  6 */ "mmmmaaaaaa"
 
 		// Level 3
-		"....aaaaaa"
-		"aaaaaaaaaa"
-		"...aaaaaaa"
-		"...aaaaaaa"
-		"...aaaaaaa"
-		"aaaaaaaaaa"
-		"....aaaaaa"
+		/* z\x*              */
+		/*    *   0123456789 */
+		/*  0 */ "mmmmaaaaaa"
+		/*  1 */ "mmaaa....a"
+		/*  2 */ ".........a"
+		/*  3 */ "......b..a"
+		/*  4 */ ".........a"
+		/*  5 */ "mmaaa....a"
+		/*  6 */ "mmmmaaaaaa"
 
 		// Level 4
-		"....aaaaaa"
-		"..aaa....a"
-		".........a"
-		"......b..a"
-		".........a"
-		"..aaa....a"
-		"....aaaaaa"
+		/* z\x*              */
+		/*    *   0123456789 */
+		/*  0 */ "mmmmcccccc"
+		/*  1 */ "mmmcc....c"
+		/*  2 */ ".........c"
+		/*  3 */ ".........c"
+		/*  4 */ ".........c"
+		/*  5 */ "mmmcc....c"
+		/*  6 */ "mmmmcccccc"
 
 		// Level 5
-		"....cccccc"
-		"...cc....c"
-		".........c"
-		".........c"
-		".........c"
-		"...cc....c"
-		"....cccccc"
+		/* z\x*              */
+		/*    *   0123456789 */
+		/*  0 */ "mmmmmmmmmm"
+		/*  1 */ "mmmmm....c"
+		/*  2 */ "m........c"
+		/*  3 */ "m........c"
+		/*  4 */ "m........c"
+		/*  5 */ "mmmmm....c"
+		/*  6 */ "mmmmmmmmmm"
 
 		// Level 6
-		".........."
-		".........c"
-		".........c"
-		".........c"
-		".........c"
-		".........c"
-		".........."
+		/* z\x*              */
+		/*    *   0123456789 */
+		/*  0 */ "mmmmmmmmmm"
+		/*  1 */ "mmmmm....m"
+		/*  2 */ "mm.......c"
+		/*  3 */ "mm.......c"
+		/*  4 */ "mm.......c"
+		/*  5 */ "mmmmm....m"
+		/*  6 */ "mmmmmmmmmm",
+
+		// Connectors:
+		"0: 0, 1, 3: 4\n"  /* Type 0, direction X- */,
 
-		// Level 7
-		".........."
-		".........."
-		".........c"
-		".........c"
-		".........c"
-		".........."
-		"..........",
-
-		// Connections:
-		"0:  0, 1, 3: 4\n"  /* Type 0, BLOCK_FACE_XM */,
-		
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		100,
+
+		// DepthWeight:
+		"1:0|2:0|3:0|4:0|5:0",
+
+		// AddWeightIfSame:
+		0,
 	},  // BlazePlatform
 
 
+
 	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// BlazePlatformOverhang:
-	// The data has been exported from gallery Nether, area index 20, ID 162
+	// The data has been exported from the gallery Nether, area index 20, ID 162, created by STR_Warrior
 	{
 		// Size:
-		14, 9, 7,  // SizeX = 14, SizeY = 9, SizeZ = 7
+		14, 11, 7,  // SizeX = 14, SizeY = 11, SizeZ = 7
+
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		13, 20, 6,  // MaxX, MaxY, MaxZ
 
 		// Block definitions:
 		".:  0: 0\n"  /* air */
@@ -366,105 +459,362 @@ const cPrefab::sDef g_NetherFortPrefabs1[] =
 		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*             1111 */
+		/*    *   01234567890123 */
+		/*  0 */ "mmmmmmmmmmmmmm"
+		/*  1 */ "mmmmmmmmmmmmmm"
+		/*  2 */ "aammmmmmmmmmmm"
+		/*  3 */ "aammmmmmmmmmmm"
+		/*  4 */ "aammmmmmmmmmmm"
+		/*  5 */ "mmmmmmmmmmmmmm"
+		/*  6 */ "mmmmmmmmmmmmmm"
+
 		// Level 1
-		"mmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmm"
-		"aammmmmmmmmmmm"
-		"aammmmmmmmmmmm"
-		"aammmmmmmmmmmm"
-		"mmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmm"
+		/* z\x*             1111 */
+		/*    *   01234567890123 */
+		/*  0 */ "mmmmmmmmmmmmmm"
+		/*  1 */ "mmmmmmmmmmmmmm"
+		/*  2 */ "aabcmmmmmmmmmm"
+		/*  3 */ "aabcmmmmmmmmmm"
+		/*  4 */ "aabcmmmmmmmmmm"
+		/*  5 */ "mmmmmmmmmmmmmm"
+		/*  6 */ "mmmmmmmmmmmmmm"
 
 		// Level 2
-		"mmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmm"
-		"aabcmmmmmmmmmm"
-		"aabcmmmmmmmmmm"
-		"aabcmmmmmmmmmm"
-		"mmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmm"
+		/* z\x*             1111 */
+		/*    *   01234567890123 */
+		/*  0 */ "mmmmmmmmmmmmmm"
+		/*  1 */ "mmmmmmmmmmmmmm"
+		/*  2 */ "aaaaabmmmmmmmm"
+		/*  3 */ "aaaaabmmmmmmmm"
+		/*  4 */ "aaaaabmmmmmmmm"
+		/*  5 */ "mmmmmmmmmmmmmm"
+		/*  6 */ "mmmmmmmmmmmmmm"
 
 		// Level 3
-		"mmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmm"
-		"aaaaabmmmmmmmm"
-		"aaaaabmmmmmmmm"
-		"aaaaabmmmmmmmm"
-		"mmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmm"
+		/* z\x*             1111 */
+		/*    *   01234567890123 */
+		/*  0 */ "mmmmmmmmmmmmmm"
+		/*  1 */ "dddddddmmmmmmm"
+		/*  2 */ "aaaaaabmmmmmmm"
+		/*  3 */ "aaaaaabmmmmmmm"
+		/*  4 */ "aaaaaabmmmmmmm"
+		/*  5 */ "eeeeeeemmmmmmm"
+		/*  6 */ "mmmmmmmmmmmmmm"
 
 		// Level 4
-		"mmmmmmmmmmmmmm"
-		"dddddddmmmmmmm"
-		"aaaaaabmmmmmmm"
-		"aaaaaabmmmmmmm"
-		"aaaaaabmmmmmmm"
-		"eeeeeeemmmmmmm"
-		"mmmmmmmmmmmmmm"
+		/* z\x*             1111 */
+		/*    *   01234567890123 */
+		/*  0 */ "mmmmmmmmmmmmmm"
+		/*  1 */ "aaaaaaadmmmmmm"
+		/*  2 */ "aaaaaaabmmmmmm"
+		/*  3 */ "aaaaaaabmmmmmm"
+		/*  4 */ "aaaaaaabmmmmmm"
+		/*  5 */ "aaaaaaaemmmmmm"
+		/*  6 */ "mmmmmmmmmmmmmm"
 
 		// Level 5
-		"mmmmmmmmmmmmmm"
-		"aaaaaaadmmmmmm"
-		"aaaaaaabmmmmmm"
-		"aaaaaaabmmmmmm"
-		"aaaaaaabmmmmmm"
-		"aaaaaaaemmmmmm"
-		"mmmmmmmmmmmmmm"
+		/* z\x*             1111 */
+		/*    *   01234567890123 */
+		/*  0 */ "mmmmmmmmmmmmmm"
+		/*  1 */ "aaaaaaaabddddm"
+		/*  2 */ "......faaaaabm"
+		/*  3 */ "......faaaaabm"
+		/*  4 */ "......faaaaabm"
+		/*  5 */ "aaaaaaaaabeebm"
+		/*  6 */ "mmmmmmmmmmmmmm"
 
 		// Level 6
-		"mmmmmmmmmmmmmm"
-		"aaaaaaaabddddm"
-		"......faaaaabm"
-		"......faaaaabm"
-		"......faaaaabm"
-		"aaaaaaaaabeebm"
-		"mmmmmmmmmmmmmm"
+		/* z\x*             1111 */
+		/*    *   01234567890123 */
+		/*  0 */ "mmmmmmmmgdddbm"
+		/*  1 */ "mmmmmmaaaaaaad"
+		/*  2 */ ".......faaaaab"
+		/*  3 */ ".......faaaaab"
+		/*  4 */ ".......faaaaab"
+		/*  5 */ "mmmmmmaaaaaaae"
+		/*  6 */ "mmmmmmmmgeeebm"
 
 		// Level 7
-		"mmmmmmmmgdddbm"
-		"......aaaaaaad"
-		".......faaaaab"
-		".......faaaaab"
-		".......faaaaab"
-		"......aaaaaaae"
-		"mmmmmmmmgeeebm"
+		/* z\x*             1111 */
+		/*    *   01234567890123 */
+		/*  0 */ "mmmmmmmmaaaaam"
+		/*  1 */ "mmmmmmhaa...aa"
+		/*  2 */ ".............a"
+		/*  3 */ "..........i..a"
+		/*  4 */ ".............a"
+		/*  5 */ "mmmmmmhaa...aa"
+		/*  6 */ "mmmmmmmmaaaaam"
 
 		// Level 8
-		"mmmmmmmmaaaaam"
-		"......haa...aa"
-		".............a"
-		"..........i..a"
-		".............a"
-		"......haa...aa"
-		"mmmmmmmmaaaaam"
+		/* z\x*             1111 */
+		/*    *   01234567890123 */
+		/*  0 */ "mmmmmmmmhhhhhm"
+		/*  1 */ "mmmmmmhhh...hh"
+		/*  2 */ "mm...........h"
+		/*  3 */ "mm...........h"
+		/*  4 */ "mm...........h"
+		/*  5 */ "mmmmmmhhh...hh"
+		/*  6 */ "mmmmmmmmhhhhhm"
 
 		// Level 9
-		"mmmmmmmmhhhhhm"
-		"......hhh...hh"
-		".............h"
-		".............h"
-		".............h"
-		"......hhh...hh"
-		"mmmmmmmmhhhhhm",
+		/* z\x*             1111 */
+		/*    *   01234567890123 */
+		/*  0 */ "mmmmmmmm.....m"
+		/*  1 */ "mmmmmm........"
+		/*  2 */ "mmmm.........."
+		/*  3 */ "mmmm.........."
+		/*  4 */ "mmmm.........."
+		/*  5 */ "mmmmmm........"
+		/*  6 */ "mmmmmmmm.....m"
 
-		// Connections:
-		"0:  0, 5, 3: 4\n"  /* Type 0, BLOCK_FACE_XM */,
+		// Level 10
+		/* z\x*             1111 */
+		/*    *   01234567890123 */
+		/*  0 */ "mmmmmmmm.....m"
+		/*  1 */ "mmmmmm........"
+		/*  2 */ "mmmmmm........"
+		/*  3 */ "mmmmmm........"
+		/*  4 */ "mmmmmm........"
+		/*  5 */ "mmmmmm........"
+		/*  6 */ "mmmmmmmm.....m",
+
+		// Connectors:
+		"0: 0, 5, 3: 4\n"  /* Type 0, direction X- */,
 
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		100,
+
+		// DepthWeight:
+		"1:0|2:0|3:0|4:0|5:0",
+
+		// AddWeightIfSame:
+		0,
 	},  // BlazePlatformOverhang
 
 
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+	// BridgeCircleCrossing:
+	// The data has been exported from the gallery Nether, area index 49, ID 308, created by Aloe_vera
+	{
+		// Size:
+		15, 8, 15,  // SizeX = 15, SizeY = 8, SizeZ = 15
+
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		14, 17, 14,  // MaxX, MaxY, MaxZ
+
+		// Block definitions:
+		".:  0: 0\n"  /* air */
+		"a:112: 0\n"  /* netherbrick */
+		"b:114: 7\n"  /* netherbrickstairs */
+		"c:114: 5\n"  /* netherbrickstairs */
+		"d:114: 4\n"  /* netherbrickstairs */
+		"e:114: 6\n"  /* netherbrickstairs */
+		"m: 19: 0\n"  /* sponge */,
+
+		// Block data:
+		// Level 0
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmaaammmmmm"
+		/*  1 */ "mmmmmmaaammmmmm"
+		/*  2 */ "mmmmmmmmmmmmmmm"
+		/*  3 */ "mmmmmmmmmmmmmmm"
+		/*  4 */ "mmmmmmmmmmmmmmm"
+		/*  5 */ "mmmmmmmmmmmmmmm"
+		/*  6 */ "aammmmmmmmmmmaa"
+		/*  7 */ "aammmmmmmmmmmaa"
+		/*  8 */ "aammmmmmmmmmmaa"
+		/*  9 */ "mmmmmmmmmmmmmmm"
+		/* 10 */ "mmmmmmmmmmmmmmm"
+		/* 11 */ "mmmmmmmmmmmmmmm"
+		/* 12 */ "mmmmmmmmmmmmmmm"
+		/* 13 */ "mmmmmmaaammmmmm"
+		/* 14 */ "mmmmmmaaammmmmm"
+
+		// Level 1
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmaaammmmmm"
+		/*  1 */ "mmmmmmaaammmmmm"
+		/*  2 */ "mmmmmmbbbmmmmmm"
+		/*  3 */ "mmmmmmmmmmmmmmm"
+		/*  4 */ "mmmmmmmmmmmmmmm"
+		/*  5 */ "mmmmmmmmmmmmmmm"
+		/*  6 */ "aacmmmmmmmmmdaa"
+		/*  7 */ "aacmmmmmmmmmdaa"
+		/*  8 */ "aacmmmmmmmmmdaa"
+		/*  9 */ "mmmmmmmmmmmmmmm"
+		/* 10 */ "mmmmmmmmmmmmmmm"
+		/* 11 */ "mmmmmmmmmmmmmmm"
+		/* 12 */ "mmmmmmeeemmmmmm"
+		/* 13 */ "mmmmmmaaammmmmm"
+		/* 14 */ "mmmmmmaaammmmmm"
+
+		// Level 2
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmaaammmmmm"
+		/*  1 */ "mmmmmeaaammmmmm"
+		/*  2 */ "mmmmmdaaammmmmm"
+		/*  3 */ "mmmmmdbbbmmmmmm"
+		/*  4 */ "mmmmmmmmmmmmmmm"
+		/*  5 */ "mdeemmmmmmmeecm"
+		/*  6 */ "aaacmmmmmmmdaaa"
+		/*  7 */ "aaacmmmmmmmdaaa"
+		/*  8 */ "aaacmmmmmmmdaaa"
+		/*  9 */ "mdbcmmmmmmmbbcm"
+		/* 10 */ "mmmmmmmmmmmmmmm"
+		/* 11 */ "mmmmmdeeecmmmmm"
+		/* 12 */ "mmmmmdaaacmmmmm"
+		/* 13 */ "mmmmmbaaabmmmmm"
+		/* 14 */ "mmmmmmaaammmmmm"
+
+		// Level 3
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "deeeedaaaceeeec"
+		/*  1 */ "daaaaaaaaaaaaac"
+		/*  2 */ "daaaaaaaaaaaaac"
+		/*  3 */ "daaaaaaaaaaaaac"
+		/*  4 */ "daaacbbaabdaaac"
+		/*  5 */ "eaaacmmmmmdaaae"
+		/*  6 */ "aaaacmmmmmdaaaa"
+		/*  7 */ "aaaacmmmmmdaaaa"
+		/*  8 */ "aaaacmmmmmdaaaa"
+		/*  9 */ "baaacmmmmmdaaab"
+		/* 10 */ "daaaceeeeedaaac"
+		/* 11 */ "daaaaaaaaaaaaac"
+		/* 12 */ "daaaaaaaaaaaaac"
+		/* 13 */ "daaaaaaaaaaaaac"
+		/* 14 */ "dbbbbdaaacbbbbb"
+
+		// Level 4
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aaaaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaaaa"
+		/*  5 */ "aaaaammmmmaaaaa"
+		/*  6 */ "aaaaammmmmaaaaa"
+		/*  7 */ "aaaaammmmmaaaaa"
+		/*  8 */ "aaaaammmmmaaaaa"
+		/*  9 */ "aaaaammmmmaaaaa"
+		/* 10 */ "aaaaaaaaaaaaaaa"
+		/* 11 */ "aaaaaaaaaaaaaaa"
+		/* 12 */ "aaaaaaaaaaaaaaa"
+		/* 13 */ "aaaaaaaaaaaaaaa"
+		/* 14 */ "aaaaaaaaaaaaaaa"
+
+		// Level 5
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aaaaaa...aaaaaa"
+		/*  1 */ "a.............a"
+		/*  2 */ "a.............a"
+		/*  3 */ "a.............a"
+		/*  4 */ "a...aaaaaaa...a"
+		/*  5 */ "a...ammmmma...a"
+		/*  6 */ "....ammmmma...."
+		/*  7 */ "....ammmmma...."
+		/*  8 */ "....ammmmma...."
+		/*  9 */ "a...ammmmma...a"
+		/* 10 */ "a...aaaaaaa...a"
+		/* 11 */ "a.............a"
+		/* 12 */ "a.............a"
+		/* 13 */ "a.............a"
+		/* 14 */ "aaaaaa...aaaaaa"
+
+		// Level 6
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmm...mmmmmm"
+		/*  1 */ "m.............m"
+		/*  2 */ "m.............m"
+		/*  3 */ "m.............m"
+		/*  4 */ "m.............m"
+		/*  5 */ "m....mmmmm....m"
+		/*  6 */ ".....mmmmm....."
+		/*  7 */ ".....mmmmm....."
+		/*  8 */ ".....mmmmm....."
+		/*  9 */ "m....mmmmm....m"
+		/* 10 */ "m.............m"
+		/* 11 */ "m.............m"
+		/* 12 */ "m.............m"
+		/* 13 */ "m.............m"
+		/* 14 */ "mmmmmm...mmmmmm"
+
+		// Level 7
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmm...mmmmmm"
+		/*  1 */ "m.............m"
+		/*  2 */ "m.............m"
+		/*  3 */ "m.............m"
+		/*  4 */ "m.............m"
+		/*  5 */ "m....mmmmm....m"
+		/*  6 */ ".....mmmmm....."
+		/*  7 */ ".....mmmmm....."
+		/*  8 */ ".....mmmmm....."
+		/*  9 */ "m....mmmmm....m"
+		/* 10 */ "m.............m"
+		/* 11 */ "m.............m"
+		/* 12 */ "m.............m"
+		/* 13 */ "m.............m"
+		/* 14 */ "mmmmmm...mmmmmm",
+
+		// Connectors:
+		"0: 0, 5, 7: 4\n"  /* Type 0, direction X- */
+		"0: 7, 5, 0: 2\n"  /* Type 0, direction Z- */
+		"0: 14, 5, 7: 5\n"  /* Type 0, direction X+ */
+		"0: 7, 5, 14: 3\n"  /* Type 0, direction Z+ */,
+
+		// AllowedRotations:
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
+		// Merge strategy:
+		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		5,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		-1000,
+	},  // BridgeCircleCrossing
+
+
+
 	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// BridgeCrossing:
-	// The data has been exported from gallery Nether, area index 17, ID 159
+	// The data has been exported from the gallery Nether, area index 17, ID 159, created by Aloe_vera
 	{
 		// Size:
 		15, 8, 15,  // SizeX = 15, SizeY = 8, SizeZ = 15
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		14, 17, 14,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
 		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
@@ -476,300 +826,808 @@ const cPrefab::sDef g_NetherFortPrefabs1[] =
 		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmaaammmmmm"
+		/*  1 */ "mmmmmmaaammmmmm"
+		/*  2 */ "mmmmmmmmmmmmmmm"
+		/*  3 */ "mmmmmmmmmmmmmmm"
+		/*  4 */ "mmmmmmmmmmmmmmm"
+		/*  5 */ "mmmmmmmmmmmmmmm"
+		/*  6 */ "aammmmmmmmmmmaa"
+		/*  7 */ "aammmmmmmmmmmaa"
+		/*  8 */ "aammmmmmmmmmmaa"
+		/*  9 */ "mmmmmmmmmmmmmmm"
+		/* 10 */ "mmmmmmmmmmmmmmm"
+		/* 11 */ "mmmmmmmmmmmmmmm"
+		/* 12 */ "mmmmmmmmmmmmmmm"
+		/* 13 */ "mmmmmmaaammmmmm"
+		/* 14 */ "mmmmmmaaammmmmm"
+
 		// Level 1
-		"mmmmmmaaammmmmm"
-		"mmmmmmaaammmmmm"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmmm"
-		"aammmmmmmmmmmaa"
-		"aammmmmmmmmmmaa"
-		"aammmmmmmmmmmaa"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmaaammmmmm"
-		"mmmmmmaaammmmmm"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmaaammmmmm"
+		/*  1 */ "mmmmmmaaammmmmm"
+		/*  2 */ "mmmmmmbbbmmmmmm"
+		/*  3 */ "mmmmmmmmmmmmmmm"
+		/*  4 */ "mmmmmmmmmmmmmmm"
+		/*  5 */ "mmmmmmmmmmmmmmm"
+		/*  6 */ "aacmmmmmmmmmdaa"
+		/*  7 */ "aacmmmmmmmmmdaa"
+		/*  8 */ "aacmmmmmmmmmdaa"
+		/*  9 */ "mmmmmmmmmmmmmmm"
+		/* 10 */ "mmmmmmmmmmmmmmm"
+		/* 11 */ "mmmmmmmmmmmmmmm"
+		/* 12 */ "mmmmmmeeemmmmmm"
+		/* 13 */ "mmmmmmaaammmmmm"
+		/* 14 */ "mmmmmmaaammmmmm"
 
 		// Level 2
-		"mmmmmmaaammmmmm"
-		"mmmmmmaaammmmmm"
-		"mmmmmmbbbmmmmmm"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmmm"
-		"aacmmmmmmmmmdaa"
-		"aacmmmmmmmmmdaa"
-		"aacmmmmmmmmmdaa"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmeeemmmmmm"
-		"mmmmmmaaammmmmm"
-		"mmmmmmaaammmmmm"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmaaammmmmm"
+		/*  1 */ "mmmmmmaaammmmmm"
+		/*  2 */ "mmmmmmaaammmmmm"
+		/*  3 */ "mmmmmmbbbmmmmmm"
+		/*  4 */ "mmmmmmfffmmmmmm"
+		/*  5 */ "mmmmmmmmmmmmmmm"
+		/*  6 */ "aaacfmmmmmfdaaa"
+		/*  7 */ "aaacfmmmmmfdaaa"
+		/*  8 */ "aaacfmmmmmfdaaa"
+		/*  9 */ "mmmmmmmmmmmmmmm"
+		/* 10 */ "mmmmmmfffmmmmmm"
+		/* 11 */ "mmmmmmeeemmmmmm"
+		/* 12 */ "mmmmmmaaammmmmm"
+		/* 13 */ "mmmmmmaaammmmmm"
+		/* 14 */ "mmmmmmaaammmmmm"
 
 		// Level 3
-		"mmmmmmaaammmmmm"
-		"mmmmmmaaammmmmm"
-		"mmmmmmaaammmmmm"
-		"mmmmmmbbbmmmmmm"
-		"mmmmmmfffmmmmmm"
-		"mmmmmmmmmmmmmmm"
-		"aaacfmmmmmfdaaa"
-		"aaacfmmmmmfdaaa"
-		"aaacfmmmmmfdaaa"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmfffmmmmmm"
-		"mmmmmmeeemmmmmm"
-		"mmmmmmaaammmmmm"
-		"mmmmmmaaammmmmm"
-		"mmmmmmaaammmmmm"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmdaaacmmmmm"
+		/*  1 */ "mmmmmdaaacmmmmm"
+		/*  2 */ "mmmmmdaaacmmmmm"
+		/*  3 */ "mmmmmdaaacmmmmm"
+		/*  4 */ "mmmmmdaaacmmmmm"
+		/*  5 */ "eeeeeeaaaeeeeee"
+		/*  6 */ "aaaaaaaaaaaaaaa"
+		/*  7 */ "aaaaaaaaaaaaaaa"
+		/*  8 */ "aaaaaaaaaaaaaaa"
+		/*  9 */ "bbbbbdaaacbbbbb"
+		/* 10 */ "mmmmmdaaacmmmmm"
+		/* 11 */ "mmmmmdaaacmmmmm"
+		/* 12 */ "mmmmmdaaacmmmmm"
+		/* 13 */ "mmmmmdaaacmmmmm"
+		/* 14 */ "mmmmmdaaacmmmmm"
 
 		// Level 4
-		"mmmmmdaaacmmmmm"
-		"mmmmmdaaacmmmmm"
-		"mmmmmdaaacmmmmm"
-		"mmmmmdaaacmmmmm"
-		"mmmmmdaaacmmmmm"
-		"eeeeeeaaaeeeeee"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"bbbbbdaaacbbbbb"
-		"mmmmmdaaacmmmmm"
-		"mmmmmdaaacmmmmm"
-		"mmmmmdaaacmmmmm"
-		"mmmmmdaaacmmmmm"
-		"mmmmmdaaacmmmmm"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmaaaaammmmm"
+		/*  1 */ "mmmmmaaaaammmmm"
+		/*  2 */ "mmmmmaaaaammmmm"
+		/*  3 */ "mmmmmaaaaammmmm"
+		/*  4 */ "mmmmmaaaaammmmm"
+		/*  5 */ "aaaaaaaaaaaaaaa"
+		/*  6 */ "aaaaaaaaaaaaaaa"
+		/*  7 */ "aaaaaaaaaaaaaaa"
+		/*  8 */ "aaaaaaaaaaaaaaa"
+		/*  9 */ "aaaaaaaaaaaaaaa"
+		/* 10 */ "mmmmmaaaaammmmm"
+		/* 11 */ "mmmmmaaaaammmmm"
+		/* 12 */ "mmmmmaaaaammmmm"
+		/* 13 */ "mmmmmaaaaammmmm"
+		/* 14 */ "mmmmmaaaaammmmm"
 
 		// Level 5
-		"mmmmmaaaaammmmm"
-		"mmmmmaaaaammmmm"
-		"mmmmmaaaaammmmm"
-		"mmmmmaaaaammmmm"
-		"mmmmmaaaaammmmm"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"mmmmmaaaaammmmm"
-		"mmmmmaaaaammmmm"
-		"mmmmmaaaaammmmm"
-		"mmmmmaaaaammmmm"
-		"mmmmmaaaaammmmm"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmma...ammmmm"
+		/*  1 */ "mmmmma...ammmmm"
+		/*  2 */ "mmmmma...ammmmm"
+		/*  3 */ "mmmmma...ammmmm"
+		/*  4 */ "mmmmma...ammmmm"
+		/*  5 */ "aaaaaa...aaaaaa"
+		/*  6 */ "..............."
+		/*  7 */ "..............."
+		/*  8 */ "..............."
+		/*  9 */ "aaaaaa...aaaaaa"
+		/* 10 */ "mmmmma...ammmmm"
+		/* 11 */ "mmmmma...ammmmm"
+		/* 12 */ "mmmmma...ammmmm"
+		/* 13 */ "mmmmma...ammmmm"
+		/* 14 */ "mmmmma...ammmmm"
 
 		// Level 6
-		"mmmmma...ammmmm"
-		"mmmmma...ammmmm"
-		"mmmmma...ammmmm"
-		"mmmmma...ammmmm"
-		"mmmmma...ammmmm"
-		"aaaaaa...aaaaaa"
-		"..............."
-		"..............."
-		"..............."
-		"aaaaaa...aaaaaa"
-		"mmmmma...ammmmm"
-		"mmmmma...ammmmm"
-		"mmmmma...ammmmm"
-		"mmmmma...ammmmm"
-		"mmmmma...ammmmm"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmm...mmmmmm"
+		/*  1 */ "mmmmmm...mmmmmm"
+		/*  2 */ "mmmmmm...mmmmmm"
+		/*  3 */ "mmmmmm...mmmmmm"
+		/*  4 */ "mmmmmm...mmmmmm"
+		/*  5 */ "mmmmmm...mmmmmm"
+		/*  6 */ "..............."
+		/*  7 */ "..............."
+		/*  8 */ "..............."
+		/*  9 */ "mmmmmm...mmmmmm"
+		/* 10 */ "mmmmmm...mmmmmm"
+		/* 11 */ "mmmmmm...mmmmmm"
+		/* 12 */ "mmmmmm...mmmmmm"
+		/* 13 */ "mmmmmm...mmmmmm"
+		/* 14 */ "mmmmmm...mmmmmm"
 
 		// Level 7
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"..............."
-		"..............."
-		"..............."
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-
-		// Level 8
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"..............."
-		"..............."
-		"..............."
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm",
-		
-		// Connections:
-		"0:  0, 5,  7: 4\n"  /* Type 0, BLOCK_FACE_XM */
-		"0:  7, 5,  0: 2\n"  /* Type 0, BLOCK_FACE_ZM */
-		"0: 14, 5,  7: 5\n"  /* Type 0, BLOCK_FACE_XP */
-		"0:  7, 5, 14: 3\n"  /* Type 0, BLOCK_FACE_ZP */,
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmm...mmmmmm"
+		/*  1 */ "mmmmmm...mmmmmm"
+		/*  2 */ "mmmmmm...mmmmmm"
+		/*  3 */ "mmmmmm...mmmmmm"
+		/*  4 */ "mmmmmm...mmmmmm"
+		/*  5 */ "mmmmmm...mmmmmm"
+		/*  6 */ "..............."
+		/*  7 */ "..............."
+		/*  8 */ "..............."
+		/*  9 */ "mmmmmm...mmmmmm"
+		/* 10 */ "mmmmmm...mmmmmm"
+		/* 11 */ "mmmmmm...mmmmmm"
+		/* 12 */ "mmmmmm...mmmmmm"
+		/* 13 */ "mmmmmm...mmmmmm"
+		/* 14 */ "mmmmmm...mmmmmm",
+
+		// Connectors:
+		"0: 0, 5, 7: 4\n"  /* Type 0, direction X- */
+		"0: 7, 5, 0: 2\n"  /* Type 0, direction Z- */
+		"0: 7, 5, 14: 3\n"  /* Type 0, direction Z+ */
+		"0: 14, 5, 7: 5\n"  /* Type 0, direction X+ */,
 
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		10,
+
+		// DepthWeight:
+		"1:1000",
+
+		// AddWeightIfSame:
+		0,
 	},  // BridgeCrossing
 
 
+
 	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// BridgeCrumble1:
-	// The data has been exported from gallery Nether, area index 19, ID 161
+	// The data has been exported from the gallery Nether, area index 19, ID 161, created by Aloe_vera
 	{
 		// Size:
 		9, 6, 5,  // SizeX = 9, SizeY = 6, SizeZ = 5
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		8, 15, 4,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
-		".: 19: 0\n"  /* sponge */
+		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
 		"b:114: 5\n"  /* netherbrickstairs */
 		"c: 44:14\n"  /* step */
 		"d:114: 6\n"  /* netherbrickstairs */
-		"e:114: 7\n"  /* netherbrickstairs */,
+		"e:114: 7\n"  /* netherbrickstairs */
+		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*   012345678 */
+		/*  0 */ "mmmmmmmmm"
+		/*  1 */ "aammmmmmm"
+		/*  2 */ "aammmmmmm"
+		/*  3 */ "aammmmmmm"
+		/*  4 */ "mmmmmmmmm"
+
 		// Level 1
-		"........."
-		"aa......."
-		"aa......."
-		"aa......."
-		"........."
+		/* z\x*   012345678 */
+		/*  0 */ "mmmmmmmmm"
+		/*  1 */ "aabmmmmmm"
+		/*  2 */ "aabmmmmmm"
+		/*  3 */ "aabmmmmmm"
+		/*  4 */ "mmmmmmmmm"
 
 		// Level 2
-		"........."
-		"aab......"
-		"aab......"
-		"aab......"
-		"........."
+		/* z\x*   012345678 */
+		/*  0 */ "mmmmmmmmm"
+		/*  1 */ "aaabcmmmm"
+		/*  2 */ "aaabcmmmm"
+		/*  3 */ "aaabcmmmm"
+		/*  4 */ "mmmmmmmmm"
 
 		// Level 3
-		"........."
-		"aaabc...."
-		"aaabc...."
-		"aaabc...."
-		"........."
+		/* z\x*   012345678 */
+		/*  0 */ "dddddddmm"
+		/*  1 */ "aaaaaaaam"
+		/*  2 */ "aaaaaaaaa"
+		/*  3 */ "aaaaaaamm"
+		/*  4 */ "eeeeemmmm"
 
 		// Level 4
-		"ddddddd.."
-		"aaaaaaaa."
-		"aaaaaaaaa"
-		"aaaaaaa.."
-		"eeeee...."
+		/* z\x*   012345678 */
+		/*  0 */ "aaaaaaaaa"
+		/*  1 */ "aaaaammmm"
+		/*  2 */ "aaaaaammm"
+		/*  3 */ "aaaaaammm"
+		/*  4 */ "aaaaaaaam"
 
 		// Level 5
-		"aaaaaaaaa"
-		"aaaaa...."
-		"aaaaaa..."
-		"aaaaaa..."
-		"aaaaaaaa."
-
-		// Level 6
-		"aaaaaa..."
-		"........."
-		"........."
-		"........."
-		"aaaaaaa..",
+		/* z\x*   012345678 */
+		/*  0 */ "aaaaaammm"
+		/*  1 */ "mmmmmmmmm"
+		/*  2 */ "mmmmmmmmm"
+		/*  3 */ "mmmmmmmmm"
+		/*  4 */ "aaaaaaamm",
 
-		// Connections:
-		"0:  0, 5, 2: 4\n"  /* Type 0, BLOCK_FACE_XM */,
+		// Connectors:
+		"1: 0, 5, 2: 4\n"  /* Type 1, direction X- */
+		"0: 0, 5, 2: 4\n"  /* Type 0, direction X- */,
 
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		100,
+
+		// DepthWeight:
+		"1:0|2:0|3:0|4:0|5:0",
+
+		// AddWeightIfSame:
+		0,
 	},  // BridgeCrumble1
 
 
+
 	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-	// BridgeCrumble2
-	// The data has been exported from gallery Nether, area index 18, ID 160
+	// BridgeCrumble2:
+	// The data has been exported from the gallery Nether, area index 18, ID 160, created by Aloe_vera
 	{
 		// Size:
 		13, 6, 5,  // SizeX = 13, SizeY = 6, SizeZ = 5
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		12, 15, 4,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
-		".: 19: 0\n"  /* sponge */
+		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
 		"b:114: 5\n"  /* netherbrickstairs */
 		"c: 44:14\n"  /* step */
 		"d:114: 6\n"  /* netherbrickstairs */
-		"e:114: 7\n"  /* netherbrickstairs */,
+		"e:114: 7\n"  /* netherbrickstairs */
+		"m: 19: 0\n"  /* sponge */,
+
+		// Block data:
+		// Level 0
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmmmmmmmmmmm"
+		/*  1 */ "aammmmmmmmmmm"
+		/*  2 */ "aammmmmmmmmmm"
+		/*  3 */ "aammmmmmmmmmm"
+		/*  4 */ "mmmmmmmmmmmmm"
+
+		// Level 1
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmmmmmmmmmmm"
+		/*  1 */ "aabmmmmmmmmmm"
+		/*  2 */ "aabmmmmmmmmmm"
+		/*  3 */ "aabmmmmmmmmmm"
+		/*  4 */ "mmmmmmmmmmmmm"
+
+		// Level 2
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmmmmmmmmmmm"
+		/*  1 */ "aaabcmmmmmmmm"
+		/*  2 */ "aaabcmmmmmmmm"
+		/*  3 */ "aaabcmmmmmmmm"
+		/*  4 */ "mmmmmmmmmmmmm"
+
+		// Level 3
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "dddddddddmmmm"
+		/*  1 */ "aaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaammmm"
+		/*  3 */ "aaaaaaaaaaaam"
+		/*  4 */ "eeeeeeeeemmmm"
+
+		// Level 4
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaaaaaaaaaam"
+		/*  1 */ "aaaaaaaaaammm"
+		/*  2 */ "aaaaaaaaaaamm"
+		/*  3 */ "aaaaaaaaammmm"
+		/*  4 */ "aaaaaaaaaaaaa"
+
+		// Level 5
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaaaaaaammmm"
+		/*  1 */ "mmmmmmmmmmmmm"
+		/*  2 */ "mmmmmmmmmmmmm"
+		/*  3 */ "mmmmmmmmmmmmm"
+		/*  4 */ "aaaaaaaaaammm",
+
+		// Connectors:
+		"0: 0, 5, 2: 4\n"  /* Type 0, direction X- */
+		"1: 0, 5, 2: 4\n"  /* Type 1, direction X- */,
+
+		// AllowedRotations:
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
+		// Merge strategy:
+		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		100,
+
+		// DepthWeight:
+		"1:0|2:0|3:0|4:0|5:0",
+
+		// AddWeightIfSame:
+		0,
+	},  // BridgeCrumble2
+
+
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+	// BridgeDoubleCrumble:
+	// The data has been exported from the gallery Nether, area index 46, ID 305, created by STR_Warrior
+	{
+		// Size:
+		5, 7, 16,  // SizeX = 5, SizeY = 7, SizeZ = 16
+
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		4, 6, 15,  // MaxX, MaxY, MaxZ
+
+		// Block definitions:
+		".:  0: 0\n"  /* air */
+		"a:112: 0\n"  /* netherbrick */
+		"b:114: 7\n"  /* netherbrickstairs */
+		"c:114: 6\n"  /* netherbrickstairs */
+		"d:114: 4\n"  /* netherbrickstairs */
+		"e:114: 5\n"  /* netherbrickstairs */
+		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*   01234 */
+		/*  0 */ "maaam"
+		/*  1 */ "maaam"
+		/*  2 */ "mmmmm"
+		/*  3 */ "mmmmm"
+		/*  4 */ "mmmmm"
+		/*  5 */ "mmmmm"
+		/*  6 */ "mmmmm"
+		/*  7 */ "mmmmm"
+		/*  8 */ "mmmmm"
+		/*  9 */ "mmmmm"
+		/* 10 */ "mmmmm"
+		/* 11 */ "mmmmm"
+		/* 12 */ "mmmmm"
+		/* 13 */ "mmmmm"
+		/* 14 */ "maaam"
+		/* 15 */ "maaam"
+
 		// Level 1
-		"............."
-		"aa..........."
-		"aa..........."
-		"aa..........."
-		"............."
+		/* z\x*   01234 */
+		/*  0 */ "maaam"
+		/*  1 */ "maaam"
+		/*  2 */ "mbbbm"
+		/*  3 */ "mmmmm"
+		/*  4 */ "mmmmm"
+		/*  5 */ "mmmmm"
+		/*  6 */ "mmmmm"
+		/*  7 */ "mmmmm"
+		/*  8 */ "mmmmm"
+		/*  9 */ "mmmmm"
+		/* 10 */ "mmmmm"
+		/* 11 */ "mmmmm"
+		/* 12 */ "mmmmm"
+		/* 13 */ "mcccm"
+		/* 14 */ "maaam"
+		/* 15 */ "maaam"
 
 		// Level 2
-		"............."
-		"aab.........."
-		"aab.........."
-		"aab.........."
-		"............."
+		/* z\x*   01234 */
+		/*  0 */ "daaae"
+		/*  1 */ "daaae"
+		/*  2 */ "daaae"
+		/*  3 */ "daaae"
+		/*  4 */ "daaae"
+		/*  5 */ "mamae"
+		/*  6 */ "mmmam"
+		/*  7 */ "mmmmm"
+		/*  8 */ "mmmmm"
+		/*  9 */ "mmmmm"
+		/* 10 */ "mmmae"
+		/* 11 */ "dmaae"
+		/* 12 */ "daaae"
+		/* 13 */ "daaae"
+		/* 14 */ "daaae"
+		/* 15 */ "daaae"
 
 		// Level 3
-		"............."
-		"aaabc........"
-		"aaabc........"
-		"aaabc........"
-		"............."
+		/* z\x*   01234 */
+		/*  0 */ "aaaaa"
+		/*  1 */ "aaaaa"
+		/*  2 */ "aaaaa"
+		/*  3 */ "aaama"
+		/*  4 */ "mamaa"
+		/*  5 */ "mmmmm"
+		/*  6 */ "mmmmm"
+		/*  7 */ "mmmmm"
+		/*  8 */ "mmmmm"
+		/*  9 */ "mmmmm"
+		/* 10 */ "mmmma"
+		/* 11 */ "mmmaa"
+		/* 12 */ "amaaa"
+		/* 13 */ "aaaaa"
+		/* 14 */ "aaaaa"
+		/* 15 */ "aaaaa"
 
 		// Level 4
-		"ddddddddd...."
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaa...."
-		"aaaaaaaaaaaa."
-		"eeeeeeeee...."
+		/* z\x*   01234 */
+		/*  0 */ "ammma"
+		/*  1 */ "ammma"
+		/*  2 */ "ammma"
+		/*  3 */ "mmmma"
+		/*  4 */ "mmmmm"
+		/*  5 */ "mmmmm"
+		/*  6 */ "mmmmm"
+		/*  7 */ "mmmmm"
+		/*  8 */ "mmmmm"
+		/*  9 */ "mmmmm"
+		/* 10 */ "mmmmm"
+		/* 11 */ "mmmma"
+		/* 12 */ "mmmmm"
+		/* 13 */ "ammma"
+		/* 14 */ "ammma"
+		/* 15 */ "ammma"
 
 		// Level 5
-		"aaaaaaaaaaaa."
-		"aaaaaaaaaa..."
-		"aaaaaaaaaaa.."
-		"aaaaaaaaa...."
-		"aaaaaaaaaaaaa"
+		/* z\x*   01234 */
+		/*  0 */ "mmmmm"
+		/*  1 */ "mmmmm"
+		/*  2 */ "mmmmm"
+		/*  3 */ "mmmmm"
+		/*  4 */ "mmmmm"
+		/*  5 */ "mmmmm"
+		/*  6 */ "mmmmm"
+		/*  7 */ "mmmmm"
+		/*  8 */ "mmmmm"
+		/*  9 */ "mmmmm"
+		/* 10 */ "mmmmm"
+		/* 11 */ "mmmmm"
+		/* 12 */ "mmmmm"
+		/* 13 */ "mmmmm"
+		/* 14 */ "mmmmm"
+		/* 15 */ "mmmmm"
 
 		// Level 6
-		"aaaaaaaaa...."
-		"............."
-		"............."
-		"............."
-		"aaaaaaaaaa...",
+		/* z\x*   01234 */
+		/*  0 */ "mmmmm"
+		/*  1 */ "mmmmm"
+		/*  2 */ "mmmmm"
+		/*  3 */ "mmmmm"
+		/*  4 */ "mmmmm"
+		/*  5 */ "mmmmm"
+		/*  6 */ "mmmmm"
+		/*  7 */ "mmmmm"
+		/*  8 */ "mmmmm"
+		/*  9 */ "mmmmm"
+		/* 10 */ "mmmmm"
+		/* 11 */ "mmmmm"
+		/* 12 */ "mmmmm"
+		/* 13 */ "mmmmm"
+		/* 14 */ "mmmmm"
+		/* 15 */ "mmmmm",
+
+		// Connectors:
+		"0: 2, 4, 0: 2\n"  /* Type 0, direction Z- */
+		"0: 2, 4, 15: 3\n"  /* Type 0, direction Z+ */,
 
-		// Connections:
-		"0:  0, 5, 2: 4\n"  /* Type 0, BLOCK_FACE_XM */,
+		// AllowedRotations:
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
+		// Merge strategy:
+		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		10,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		1000,
+	},  // BridgeDoubleCrumble
+
+
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+	// BridgeFunnelDown:
+	// The data has been exported from the gallery Nether, area index 0, ID 2, created by Aloe_vera
+	{
+		// Size:
+		15, 12, 12,  // SizeX = 15, SizeY = 12, SizeZ = 12
+
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		14, 21, 11,  // MaxX, MaxY, MaxZ
+
+		// Block definitions:
+		".:  0: 0\n"  /* air */
+		"a:112: 0\n"  /* netherbrick */
+		"b:114: 6\n"  /* netherbrickstairs */
+		"c:114: 4\n"  /* netherbrickstairs */
+		"d:114: 5\n"  /* netherbrickstairs */
+		"e: 44:14\n"  /* step */
+		"f:114: 7\n"  /* netherbrickstairs */
+		"m: 19: 0\n"  /* sponge */,
+
+		// Block data:
+		// Level 0
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "aammmmmmmmmmmaa"
+		/*  2 */ "aammmmmmmmmmmaa"
+		/*  3 */ "aammmmmmmmmmmaa"
+		/*  4 */ "mmmmmmmmmmmmmmm"
+		/*  5 */ "mmmmmmmmmmmmmmm"
+		/*  6 */ "mmmmmmmmmmmmmmm"
+		/*  7 */ "mmmmmmmmmmmmmmm"
+		/*  8 */ "mmmmmmmmmmmmmmm"
+		/*  9 */ "mmmmmmaaammmmmm"
+		/* 10 */ "mmmmmmaaammmmmm"
+		/* 11 */ "mmmmmmaaammmmmm"
+
+		// Level 1
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "aammmmmmmmmmmaa"
+		/*  2 */ "aammmmmmmmmmmaa"
+		/*  3 */ "aammmmmmmmmmmaa"
+		/*  4 */ "mmmmmmmmmmmmmmm"
+		/*  5 */ "mmmmmmmmmmmmmmm"
+		/*  6 */ "mmmmmmmmmmmmmmm"
+		/*  7 */ "mmmmmmmmmmmmmmm"
+		/*  8 */ "mmmmmmbbbmmmmmm"
+		/*  9 */ "mmmmmmaaammmmmm"
+		/* 10 */ "mmmmmmaaammmmmm"
+		/* 11 */ "mmmmmmaaammmmmm"
+
+		// Level 2
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "aammmmmmmmmmmaa"
+		/*  2 */ "aammmmmmmmmmmaa"
+		/*  3 */ "aammmmmmmmmmmaa"
+		/*  4 */ "mmmmmmmmmmmmmmm"
+		/*  5 */ "mmmmmmmmmmmmmmm"
+		/*  6 */ "mmmmmmmmmmmmmmm"
+		/*  7 */ "mmmmmcbbbdmmmmm"
+		/*  8 */ "mmmmmcaaadmmmmm"
+		/*  9 */ "mmmmmcaaadmmmmm"
+		/* 10 */ "mmmmmcaaadmmmmm"
+		/* 11 */ "mmmmmcaaadmmmmm"
+
+		// Level 3
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "aammmmmmmmmmmaa"
+		/*  2 */ "aammmmmmmmmmmaa"
+		/*  3 */ "aammmmmmmmmmmaa"
+		/*  4 */ "mmmmmmmmmmmmmmm"
+		/*  5 */ "mmmmmmmmmmmmmmm"
+		/*  6 */ "mmmmmmmmmmmmmmm"
+		/*  7 */ "mmmmmaaaaammmmm"
+		/*  8 */ "mmmmmaaaaammmmm"
+		/*  9 */ "mmmmmaaaaammmmm"
+		/* 10 */ "mmmmmaaaaammmmm"
+		/* 11 */ "mmmmmaaaaammmmm"
+
+		// Level 4
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "aammmmmmmmmmmaa"
+		/*  2 */ "aammmmmmmmmmmaa"
+		/*  3 */ "aammmmmmmmmmmaa"
+		/*  4 */ "mmmmmmmmmmmmmmm"
+		/*  5 */ "mmmmmmmmmmmmmmm"
+		/*  6 */ "mmmmcbbbbbdmmmm"
+		/*  7 */ "mmmmaaaaaaammmm"
+		/*  8 */ "mmmma.....ammmm"
+		/*  9 */ "mmmmaa...aammmm"
+		/* 10 */ "mmmmma...ammmmm"
+		/* 11 */ "mmmmma...ammmmm"
+
+		// Level 5
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "aadmmmmmmmmmcaa"
+		/*  2 */ "aadmmmmmmmmmcaa"
+		/*  3 */ "aadmmmmmmmmmcaa"
+		/*  4 */ "mmmmmmmmmmmmmmm"
+		/*  5 */ "mmmcbbbbbbbdmmm"
+		/*  6 */ "mmmaaaaaaaaaamm"
+		/*  7 */ "mmma.......ammm"
+		/*  8 */ "mmmaa.....aammm"
+		/*  9 */ "mmmmam...mammmm"
+		/* 10 */ "mmmmmm...mmmmmm"
+		/* 11 */ "mmmmmm...mmmmmm"
+
+		// Level 6
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "aaademmmmmecaaa"
+		/*  2 */ "aaademmmmmecaaa"
+		/*  3 */ "aaademmmmmecaaa"
+		/*  4 */ "mmaaabbbbbaaaam"
+		/*  5 */ "mmaaaaaaaaaaaam"
+		/*  6 */ "mma.........amm"
+		/*  7 */ "mmaa.......aamm"
+		/*  8 */ "mmmam.....mammm"
+		/*  9 */ "mmmmmm...mmmmmm"
+		/* 10 */ "mmmmmm...mmmmmm"
+		/* 11 */ "mmmmmm...mmmmmm"
+
+		// Level 7
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "bbbbbbbbbbbbbbb"
+		/*  1 */ "aaaaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaaaa"
+		/*  4 */ "faaaaaaaaaaaaaa"
+		/*  5 */ "ma...........am"
+		/*  6 */ "maa.........aam"
+		/*  7 */ "mmam.......mamm"
+		/*  8 */ "mmmmm.....mmmmm"
+		/*  9 */ "mmmmmmmmmmmmmmm"
+		/* 10 */ "mmmmmmmmmmmmmmm"
+		/* 11 */ "mmmmmmmmmmmmmmm"
+
+		// Level 8
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aaaaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaaaa"
+		/*  4 */ "a.............a"
+		/*  5 */ "aa...........aa"
+		/*  6 */ "mam.........mam"
+		/*  7 */ "mmmm.......mmmm"
+		/*  8 */ "mmmmmmmmmmmmmmm"
+		/*  9 */ "mmmmmmmmmmmmmmm"
+		/* 10 */ "mmmmmmmmmmmmmmm"
+		/* 11 */ "mmmmmmmmmmmmmmm"
+
+		// Level 9
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aaaaaaaaaaaaaaa"
+		/*  1 */ "..............."
+		/*  2 */ "..............."
+		/*  3 */ "..............."
+		/*  4 */ "a.............a"
+		/*  5 */ "am............a"
+		/*  6 */ "mmm.........mmm"
+		/*  7 */ "mmmmmmmmmmmmmmm"
+		/*  8 */ "mmmmmmmmmmmmmmm"
+		/*  9 */ "mmmmmmmmmmmmmmm"
+		/* 10 */ "mmmmmmmmmmmmmmm"
+		/* 11 */ "mmmmmmmmmmmmmmm"
+
+		// Level 10
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "..............."
+		/*  2 */ "..............."
+		/*  3 */ "..............."
+		/*  4 */ "m.............m"
+		/*  5 */ "mm............m"
+		/*  6 */ "mmmmmmmmmmmmmmm"
+		/*  7 */ "mmmmmmmmmmmmmmm"
+		/*  8 */ "mmmmmmmmmmmmmmm"
+		/*  9 */ "mmmmmmmmmmmmmmm"
+		/* 10 */ "mmmmmmmmmmmmmmm"
+		/* 11 */ "mmmmmmmmmmmmmmm"
+
+		// Level 11
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "..............."
+		/*  2 */ "..............."
+		/*  3 */ "..............."
+		/*  4 */ "m.............m"
+		/*  5 */ "mmmmmmmmmmmmmmm"
+		/*  6 */ "mmmmmmmmmmmmmmm"
+		/*  7 */ "mmmmmmmmmmmmmmm"
+		/*  8 */ "mmmmmmmmmmmmmmm"
+		/*  9 */ "mmmmmmmmmmmmmmm"
+		/* 10 */ "mmmmmmmmmmmmmmm"
+		/* 11 */ "mmmmmmmmmmmmmmm",
+
+		// Connectors:
+		"0: 7, 4, 11: 3\n"  /* Type 0, direction Z+ */
+		"0: 0, 9, 2: 4\n"  /* Type 0, direction X- */
+		"0: 14, 9, 2: 5\n"  /* Type 0, direction X+ */,
 
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
-	},  // BridgeCrumble2
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		5,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		0,
+	},  // BridgeFunnelDown
+
 
 
 	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-	// BridgeSegment:
-	// The data has been exported from gallery Nether, area index 16, ID 158
+	// BridgeLevelCrossing:
+	// The data has been exported from the gallery Nether, area index 61, ID 321, created by Aloe_vera
 	{
 		// Size:
-		15, 8, 5,  // SizeX = 15, SizeY = 8, SizeZ = 5
+		16, 14, 16,  // SizeX = 16, SizeY = 14, SizeZ = 16
+
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		15, 23, 15,  // MaxX, MaxY, MaxZ
 
 		// Block definitions:
 		".:  0: 0\n"  /* air */
@@ -782,80 +1640,443 @@ const cPrefab::sDef g_NetherFortPrefabs1[] =
 		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "mmmmmmmmmmmmmmmm"
+		/*  1 */ "aammmmmmmmmmmmaa"
+		/*  2 */ "aammmmmmmmmmmmaa"
+		/*  3 */ "aammmmmmmmmmmmaa"
+		/*  4 */ "mmmmmmmmmmmmmmmm"
+		/*  5 */ "mmmmmmmmmmmmmmmm"
+		/*  6 */ "mmmmmmmmmmmmmmmm"
+		/*  7 */ "mmmmmmmmmmmmmmmm"
+		/*  8 */ "mmmmmmmmmmmmmmmm"
+		/*  9 */ "mmmmmmmmmmmmmmmm"
+		/* 10 */ "mmmmmmmmmmmmmmmm"
+		/* 11 */ "mmmmmmmmmmmmmmmm"
+		/* 12 */ "maaammmmmmmmmmmm"
+		/* 13 */ "maaammmmmmmmmmmm"
+		/* 14 */ "maaammmmmmmmaaam"
+		/* 15 */ "mmmmmmmmmmmmaaam"
+
 		// Level 1
-		"mmmmmmmmmmmmmmm"
-		"aammmmmmmmmmmaa"
-		"aammmmmmmmmmmaa"
-		"aammmmmmmmmmmaa"
-		"mmmmmmmmmmmmmmm"
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "mmmmmmmmmmmmmmmm"
+		/*  1 */ "aabmmmmmmmmmmcaa"
+		/*  2 */ "aabmmmmmmmmmmcaa"
+		/*  3 */ "aabmmmmmmmmmmcaa"
+		/*  4 */ "mmmmmmmmmmmmmmmm"
+		/*  5 */ "mmmmmmmmmmmmmmmm"
+		/*  6 */ "mmmmmmmmmmmmmmmm"
+		/*  7 */ "mmmmmmmmmmmmmmmm"
+		/*  8 */ "mmmmmmmmmmmmmmmm"
+		/*  9 */ "mmmmmmmmmmmmmmmm"
+		/* 10 */ "mmmmmmmmmmmmmmmm"
+		/* 11 */ "mmmmmmmmmmmmmmmm"
+		/* 12 */ "maaammmmmmmmmmmm"
+		/* 13 */ "maaammmmmmmmmmmm"
+		/* 14 */ "maaammmmmmmmaaam"
+		/* 15 */ "mmmmmmmmmmmmaaam"
 
 		// Level 2
-		"mmmmmmmmmmmmmmm"
-		"aabmmmmmmmmmcaa"
-		"aabmmmmmmmmmcaa"
-		"aabmmmmmmmmmcaa"
-		"mmmmmmmmmmmmmmm"
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "mmmmmmmmmmmmmmmm"
+		/*  1 */ "aaabdmmmmmmdcaaa"
+		/*  2 */ "aaabdmmmmmmdcaaa"
+		/*  3 */ "aaabdmmmmmmdcaaa"
+		/*  4 */ "mmmmmmmmmmmmmmmm"
+		/*  5 */ "mmmmmmmmmmmmmmmm"
+		/*  6 */ "mmmmmmmmmmmmmmmm"
+		/*  7 */ "mmmmmmmmmmmmmmmm"
+		/*  8 */ "mmmmmmmmmmmmmmmm"
+		/*  9 */ "mmmmmmmmmmmmmmmm"
+		/* 10 */ "mmmmmmmmmmmmmmmm"
+		/* 11 */ "mmmmmmmmmmmmmmmm"
+		/* 12 */ "maaammmmmmmmmmmm"
+		/* 13 */ "maaammmmmmmmmmmm"
+		/* 14 */ "maaammmmmmmmaaam"
+		/* 15 */ "mmmmmmmmmmmmaaam"
 
 		// Level 3
-		"mmmmmmmmmmmmmmm"
-		"aaabdmmmmmdcaaa"
-		"aaabdmmmmmdcaaa"
-		"aaabdmmmmmdcaaa"
-		"mmmmmmmmmmmmmmm"
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "eeeeeeeeeeeeeeee"
+		/*  1 */ "aaaaaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaaaaa"
+		/*  4 */ "ffffffffffffffff"
+		/*  5 */ "mmmmmmmmmmmmmmmm"
+		/*  6 */ "mmmmmmmmmmmmmmmm"
+		/*  7 */ "mmmmmmmmmmmmmmmm"
+		/*  8 */ "mmmmmmmmmmmmmmmm"
+		/*  9 */ "mmmmmmmmmmmmmmmm"
+		/* 10 */ "mmmmmmmmmmmmmmmm"
+		/* 11 */ "mmmmmmmmmmmmmmmm"
+		/* 12 */ "maaammmmmmmmmmmm"
+		/* 13 */ "maaammmmmmmmmmmm"
+		/* 14 */ "maaammmmmmmmaaam"
+		/* 15 */ "mmmmmmmmmmmmaaam"
 
 		// Level 4
-		"eeeeeeeeeeeeeee"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"fffffffffffffff"
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "aaaaaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaaaaa"
+		/*  5 */ "faaabmmmmmmmmmmm"
+		/*  6 */ "caaabmmmmmmmmmmm"
+		/*  7 */ "caaabmmmmmmmmmmm"
+		/*  8 */ "mmmmmmmmmmmmmmmm"
+		/*  9 */ "mmmmmmmmmmmmmmmm"
+		/* 10 */ "mmmmmmmmmmmmmmmm"
+		/* 11 */ "mmmmmmmmmmmmmmmm"
+		/* 12 */ "maaammmmmmmmmmmm"
+		/* 13 */ "maaammmmmmmmmmmm"
+		/* 14 */ "maaammmmmmmmaaam"
+		/* 15 */ "mmmmmmmmmmmmaaam"
 
 		// Level 5
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "aaaaaaaaaaaaaaaa"
+		/*  1 */ "................"
+		/*  2 */ "................"
+		/*  3 */ "................"
+		/*  4 */ "a...aaaaaaaaaaaa"
+		/*  5 */ "a...ammmmmmmmmmm"
+		/*  6 */ "aaaaammmmmmmmmmm"
+		/*  7 */ "aaaaammmmmmmmmmm"
+		/*  8 */ "caaabmmmmmmmmmmm"
+		/*  9 */ "caaabmmmmmmmmmmm"
+		/* 10 */ "mmmmmmmmmmmmmmmm"
+		/* 11 */ "mmmmmmmmmmmmmmmm"
+		/* 12 */ "maaammmmmmmmmmmm"
+		/* 13 */ "maaammmmmmmmmmmm"
+		/* 14 */ "maaammmmmmmmaaam"
+		/* 15 */ "mmmmmmmmmmmmaaam"
 
 		// Level 6
-		"aaaaaaaaaaaaaaa"
-		"..............."
-		"..............."
-		"..............."
-		"aaaaaaaaaaaaaaa"
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "mmmmmmmmmmmmaaam"
+		/*  1 */ "................"
+		/*  2 */ "................"
+		/*  3 */ "................"
+		/*  4 */ "m...mmmmmmmmaaam"
+		/*  5 */ "a...ammmmmmmmmmm"
+		/*  6 */ "a...ammmmmmmmmmm"
+		/*  7 */ "a...ammmmmmmmmmm"
+		/*  8 */ "aaaaammmmmmmmmmm"
+		/*  9 */ "aaaaammmmmmmmmmm"
+		/* 10 */ "caaabmmmmmmmmmmm"
+		/* 11 */ "caaabmmmmmmmmmmm"
+		/* 12 */ "maaabmmmmmmmmmmm"
+		/* 13 */ "maaabmmmmmmmmmmm"
+		/* 14 */ "maaafmmmmmmmaaam"
+		/* 15 */ "mmmmmmmmmmmmaaam"
 
 		// Level 7
-		"mmmmmmmmmmmmmmm"
-		"..............."
-		"..............."
-		"..............."
-		"mmmmmmmmmmmmmmm"
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "mmmmmmmmmmmmaaam"
+		/*  1 */ "................"
+		/*  2 */ "................"
+		/*  3 */ "................"
+		/*  4 */ "m...mmmmmmmmaaam"
+		/*  5 */ "m...mmmmmmmmmmmm"
+		/*  6 */ "m...mmmmmmmmmmmm"
+		/*  7 */ "a...ammmmmmmmmmm"
+		/*  8 */ "a...ammmmmmmmmmm"
+		/*  9 */ "a...ammmmmmmmmmm"
+		/* 10 */ "aaaaammmmmmmmmmm"
+		/* 11 */ "aaaaaeemmmmmmmmm"
+		/* 12 */ "caaaaaammmmmmmmm"
+		/* 13 */ "caaaaaammmmmmmmm"
+		/* 14 */ "caaaaaammmmmaaam"
+		/* 15 */ "fffffffmmmmmaaam"
 
 		// Level 8
-		"mmmmmmmmmmmmmmm"
-		"..............."
-		"..............."
-		"..............."
-		"mmmmmmmmmmmmmmm",
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "mmmmmmmmmmmmaaam"
+		/*  1 */ "mmmmmmmmmmmmmmmm"
+		/*  2 */ "mmmmmmmmmmmmmmmm"
+		/*  3 */ "mmmmmmmmmmmmmmmm"
+		/*  4 */ "m...mmmmmmmmaaam"
+		/*  5 */ "m...mmmmmmmmmmmm"
+		/*  6 */ "m...mmmmmmmmmmmm"
+		/*  7 */ "m...mmmmmmmmmmmm"
+		/*  8 */ "m...mmmmmmmmmmmm"
+		/*  9 */ "a...ammmmmmmmmmm"
+		/* 10 */ "a...ammmmmmmmmmm"
+		/* 11 */ "a...aaaeemmmmmmm"
+		/* 12 */ "a.....aaammmmmmm"
+		/* 13 */ "a.....aaammmmmmm"
+		/* 14 */ "a.....aaammmaaam"
+		/* 15 */ "aaaaaaaffmmmaaam"
+
+		// Level 9
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "mmmmmmmmmmmcaaab"
+		/*  1 */ "mmmmmmmmmmmcaaab"
+		/*  2 */ "mmmmmmmmmmmcaaab"
+		/*  3 */ "mmmmmmmmmmmcaaab"
+		/*  4 */ "mmmmmmmmmmmcaaab"
+		/*  5 */ "mmmmmmmmmmmcaaab"
+		/*  6 */ "m...mmmmmmmcaaab"
+		/*  7 */ "m...mmmmmmmcaaab"
+		/*  8 */ "m...mmmmmmmcaaab"
+		/*  9 */ "m...mmmmmmmcaaab"
+		/* 10 */ "m...mmmmmmmcaaab"
+		/* 11 */ "m...maaaaeecaaab"
+		/* 12 */ "m.......aaaaaaab"
+		/* 13 */ "m.......aaaaaaab"
+		/* 14 */ "m.......aaaaaaab"
+		/* 15 */ "mmmmmaaaafffaaab"
+
+		// Level 10
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "mmmmmmmmmmmaaaaa"
+		/*  1 */ "mmmmmmmmmmmaaaaa"
+		/*  2 */ "mmmmmmmmmmmaaaaa"
+		/*  3 */ "mmmmmmmmmmmaaaaa"
+		/*  4 */ "mmmmmmmmmmmaaaaa"
+		/*  5 */ "mmmmmmmmmmmaaaaa"
+		/*  6 */ "mmmmmmmmmmmaaaaa"
+		/*  7 */ "mmmmmmmmmmmaaaaa"
+		/*  8 */ "m...mmmmmmmaaaaa"
+		/*  9 */ "m...mmmmmmmaaaaa"
+		/* 10 */ "m...mmmmmmmaaaaa"
+		/* 11 */ "m...mmmaaaaaaaaa"
+		/* 12 */ "m.........aaaaaa"
+		/* 13 */ "m.........aaaaaa"
+		/* 14 */ "m.........aaaaaa"
+		/* 15 */ "mmmmmmmaaaaaaaaa"
+
+		// Level 11
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "mmmmmmmmmmma...a"
+		/*  1 */ "mmmmmmmmmmma...a"
+		/*  2 */ "mmmmmmmmmmma...a"
+		/*  3 */ "mmmmmmmmmmma...a"
+		/*  4 */ "mmmmmmmmmmma...a"
+		/*  5 */ "mmmmmmmmmmma...a"
+		/*  6 */ "mmmmmmmmmmma...a"
+		/*  7 */ "mmmmmmmmmmma...a"
+		/*  8 */ "mmmmmmmmmmma...a"
+		/*  9 */ "mmmmmmmmmmma...a"
+		/* 10 */ "mmmmmmmmmmma...a"
+		/* 11 */ "mmmmmmmmmaaa...a"
+		/* 12 */ "mmmm...........a"
+		/* 13 */ "mmmm...........a"
+		/* 14 */ "mmmm...........a"
+		/* 15 */ "mmmmmmmmmaaa...a"
+
+		// Level 12
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "mmmmmmmmmmmm...m"
+		/*  1 */ "mmmmmmmmmmmm...m"
+		/*  2 */ "mmmmmmmmmmmm...m"
+		/*  3 */ "mmmmmmmmmmmm...m"
+		/*  4 */ "mmmmmmmmmmmm...m"
+		/*  5 */ "mmmmmmmmmmmm...m"
+		/*  6 */ "mmmmmmmmmmmm...m"
+		/*  7 */ "mmmmmmmmmmmm...m"
+		/*  8 */ "mmmmmmmmmmmm...m"
+		/*  9 */ "mmmmmmmmmmmm...m"
+		/* 10 */ "mmmmmmmmmmmm...m"
+		/* 11 */ "mmmmmmmmmmmm...m"
+		/* 12 */ "mmmmmm.........m"
+		/* 13 */ "mmmmmm.........m"
+		/* 14 */ "mmmmmm.........m"
+		/* 15 */ "mmmmmmmmmmmm...m"
+
+		// Level 13
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "mmmmmmmmmmmm...m"
+		/*  1 */ "mmmmmmmmmmmm...m"
+		/*  2 */ "mmmmmmmmmmmm...m"
+		/*  3 */ "mmmmmmmmmmmm...m"
+		/*  4 */ "mmmmmmmmmmmm...m"
+		/*  5 */ "mmmmmmmmmmmm...m"
+		/*  6 */ "mmmmmmmmmmmm...m"
+		/*  7 */ "mmmmmmmmmmmm...m"
+		/*  8 */ "mmmmmmmmmmmm...m"
+		/*  9 */ "mmmmmmmmmmmm...m"
+		/* 10 */ "mmmmmmmmmmmm...m"
+		/* 11 */ "mmmmmmmmmmmm...m"
+		/* 12 */ "mmmmmmmm.......m"
+		/* 13 */ "mmmmmmmm.......m"
+		/* 14 */ "mmmmmmmm.......m"
+		/* 15 */ "mmmmmmmmmmmm...m",
+
+		// Connectors:
+		"0: 0, 5, 2: 4\n"  /* Type 0, direction X- */
+		"0: 15, 5, 2: 5\n"  /* Type 0, direction X+ */
+		"0: 13, 11, 0: 2\n"  /* Type 0, direction Z- */
+		"0: 13, 11, 15: 3\n"  /* Type 0, direction Z+ */,
+
+		// AllowedRotations:
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
+		// Merge strategy:
+		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		20,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		0,
+	},  // BridgeLevelCrossing
+
+
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+	// BridgeSegment:
+	// The data has been exported from the gallery Nether, area index 16, ID 158, created by Aloe_vera
+	{
+		// Size:
+		15, 8, 5,  // SizeX = 15, SizeY = 8, SizeZ = 5
+
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		14, 17, 4,  // MaxX, MaxY, MaxZ
+
+		// Block definitions:
+		".:  0: 0\n"  /* air */
+		"a:112: 0\n"  /* netherbrick */
+		"b:114: 5\n"  /* netherbrickstairs */
+		"c:114: 4\n"  /* netherbrickstairs */
+		"d: 44:14\n"  /* step */
+		"e:114: 6\n"  /* netherbrickstairs */
+		"f:114: 7\n"  /* netherbrickstairs */
+		"m: 19: 0\n"  /* sponge */,
+
+		// Block data:
+		// Level 0
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "aammmmmmmmmmmaa"
+		/*  2 */ "aammmmmmmmmmmaa"
+		/*  3 */ "aammmmmmmmmmmaa"
+		/*  4 */ "mmmmmmmmmmmmmmm"
 
-		// Connections:
-		"0:  0, 5, 2: 4\n"  /* Type 0, BLOCK_FACE_XM */
-		"0: 14, 5, 2: 5\n"  /* Type 0, BLOCK_FACE_XP */,
+		// Level 1
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "aabmmmmmmmmmcaa"
+		/*  2 */ "aabmmmmmmmmmcaa"
+		/*  3 */ "aabmmmmmmmmmcaa"
+		/*  4 */ "mmmmmmmmmmmmmmm"
+
+		// Level 2
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "aaabdmmmmmdcaaa"
+		/*  2 */ "aaabdmmmmmdcaaa"
+		/*  3 */ "aaabdmmmmmdcaaa"
+		/*  4 */ "mmmmmmmmmmmmmmm"
+
+		// Level 3
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "eeeeeeeeeeeeeee"
+		/*  1 */ "aaaaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaaaa"
+		/*  4 */ "fffffffffffffff"
+
+		// Level 4
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aaaaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaaaa"
+
+		// Level 5
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aaaaaaaaaaaaaaa"
+		/*  1 */ "..............."
+		/*  2 */ "..............."
+		/*  3 */ "..............."
+		/*  4 */ "aaaaaaaaaaaaaaa"
+
+		// Level 6
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "..............."
+		/*  2 */ "..............."
+		/*  3 */ "..............."
+		/*  4 */ "mmmmmmmmmmmmmmm"
+
+		// Level 7
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "..............."
+		/*  2 */ "..............."
+		/*  3 */ "..............."
+		/*  4 */ "mmmmmmmmmmmmmmm",
+
+		// Connectors:
+		"0: 0, 5, 2: 4\n"  /* Type 0, direction X- */
+		"0: 14, 5, 2: 5\n"  /* Type 0, direction X+ */,
 
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		500,
+
+		// DepthWeight:
+		"4:-3000|8:-3000|12:-3000|16:-3000|20:-3000",
+
+		// AddWeightIfSame:
+		1000,
 	},  // BridgeSegment
 
 
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// BridgeTee:
-	// The data has been exported from gallery Nether, area index 39, ID 290
+	// The data has been exported from the gallery Nether, area index 39, ID 290, created by STR_Warrior
 	{
 		// Size:
 		15, 8, 10,  // SizeX = 15, SizeY = 8, SizeZ = 10
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		14, 17, 9,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
 		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
@@ -867,258 +2088,446 @@ const cPrefab::sDef g_NetherFortPrefabs1[] =
 		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "aammmmmmmmmmmaa"
+		/*  2 */ "aammmmmmmmmmmaa"
+		/*  3 */ "aammmmmmmmmmmaa"
+		/*  4 */ "mmmmmmmmmmmmmmm"
+		/*  5 */ "mmmmmmmmmmmmmmm"
+		/*  6 */ "mmmmmmmmmmmmmmm"
+		/*  7 */ "mmmmmmmmmmmmmmm"
+		/*  8 */ "mmmmmmaaammmmmm"
+		/*  9 */ "mmmmmmaaammmmmm"
+
 		// Level 1
-		"mmmmmmmmmmmmmmm"
-		"aammmmmmmmmmmaa"
-		"aammmmmmmmmmmaa"
-		"aammmmmmmmmmmaa"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmaaammmmmm"
-		"mmmmmmaaammmmmm"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "aabmmmmmmmmmcaa"
+		/*  2 */ "aabmmmmmmmmmcaa"
+		/*  3 */ "aabmmmmmmmmmcaa"
+		/*  4 */ "mmmmmmmmmmmmmmm"
+		/*  5 */ "mmmmmmmmmmmmmmm"
+		/*  6 */ "mmmmmmmmmmmmmmm"
+		/*  7 */ "mmmmmmdddmmmmmm"
+		/*  8 */ "mmmmmmaaammmmmm"
+		/*  9 */ "mmmmmmaaammmmmm"
 
 		// Level 2
-		"mmmmmmmmmmmmmmm"
-		"aabmmmmmmmmmcaa"
-		"aabmmmmmmmmmcaa"
-		"aabmmmmmmmmmcaa"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmdddmmmmmm"
-		"mmmmmmaaammmmmm"
-		"mmmmmmaaammmmmm"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "aaabemmmmmecaaa"
+		/*  2 */ "aaabemmmmmecaaa"
+		/*  3 */ "aaabemmmmmecaaa"
+		/*  4 */ "mmmmmmmmmmmmmmm"
+		/*  5 */ "mmmmmmeeemmmmmm"
+		/*  6 */ "mmmmmmdddmmmmmm"
+		/*  7 */ "mmmmmmaaammmmmm"
+		/*  8 */ "mmmmmmaaammmmmm"
+		/*  9 */ "mmmmmmaaammmmmm"
 
 		// Level 3
-		"mmmmmmmmmmmmmmm"
-		"aaabemmmmmecaaa"
-		"aaabemmmmmecaaa"
-		"aaabemmmmmecaaa"
-		"mmmmmmmmmmmmmmm"
-		"mmmmmmeeemmmmmm"
-		"mmmmmmdddmmmmmm"
-		"mmmmmmaaammmmmm"
-		"mmmmmmaaammmmmm"
-		"mmmmmmaaammmmmm"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "ddddddddddddddd"
+		/*  1 */ "aaaaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaaaa"
+		/*  4 */ "fffffcaaabfffff"
+		/*  5 */ "mmmmmcaaabmmmmm"
+		/*  6 */ "mmmmmcaaabmmmmm"
+		/*  7 */ "mmmmmcaaabmmmmm"
+		/*  8 */ "mmmmmcaaabmmmmm"
+		/*  9 */ "mmmmmcaaabmmmmm"
 
 		// Level 4
-		"ddddddddddddddd"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"fffffcaaabfffff"
-		"mmmmmcaaabmmmmm"
-		"mmmmmcaaabmmmmm"
-		"mmmmmcaaabmmmmm"
-		"mmmmmcaaabmmmmm"
-		"mmmmmcaaabmmmmm"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aaaaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaaaa"
+		/*  5 */ "mmmmmaaaaammmmm"
+		/*  6 */ "mmmmmaaaaammmmm"
+		/*  7 */ "mmmmmaaaaammmmm"
+		/*  8 */ "mmmmmaaaaammmmm"
+		/*  9 */ "mmmmmaaaaammmmm"
 
 		// Level 5
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"mmmmmaaaaammmmm"
-		"mmmmmaaaaammmmm"
-		"mmmmmaaaaammmmm"
-		"mmmmmaaaaammmmm"
-		"mmmmmaaaaammmmm"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aaaaaaaaaaaaaaa"
+		/*  1 */ "..............."
+		/*  2 */ "..............."
+		/*  3 */ "..............."
+		/*  4 */ "aaaaaa...aaaaaa"
+		/*  5 */ "mmmmma...ammmmm"
+		/*  6 */ "mmmmma...ammmmm"
+		/*  7 */ "mmmmma...ammmmm"
+		/*  8 */ "mmmmma...ammmmm"
+		/*  9 */ "mmmmma...ammmmm"
 
 		// Level 6
-		"aaaaaaaaaaaaaaa"
-		"..............."
-		"..............."
-		"..............."
-		"aaaaaa...aaaaaa"
-		"mmmmma...ammmmm"
-		"mmmmma...ammmmm"
-		"mmmmma...ammmmm"
-		"mmmmma...ammmmm"
-		"mmmmma...ammmmm"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "..............."
+		/*  2 */ "..............."
+		/*  3 */ "..............."
+		/*  4 */ "mmmmmm...mmmmmm"
+		/*  5 */ "mmmmmm...mmmmmm"
+		/*  6 */ "mmmmmm...mmmmmm"
+		/*  7 */ "mmmmmm...mmmmmm"
+		/*  8 */ "mmmmmm...mmmmmm"
+		/*  9 */ "mmmmmm...mmmmmm"
 
 		// Level 7
-		"mmmmmmmmmmmmmmm"
-		"..............."
-		"..............."
-		"..............."
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-
-		// Level 8
-		"mmmmmmmmmmmmmmm"
-		"..............."
-		"..............."
-		"..............."
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm"
-		"mmmmmm...mmmmmm",
-
-		// Connections:
-		"0:  0, 5, 2: 4\n"  /* Type 0, BLOCK_FACE_XM */
-		"0: 14, 5, 2: 5\n"  /* Type 0, BLOCK_FACE_XP */
-		"0:  7, 5, 9: 3\n"  /* Type 0, BLOCK_FACE_ZP */,
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "mmmmmmmmmmmmmmm"
+		/*  1 */ "..............."
+		/*  2 */ "..............."
+		/*  3 */ "..............."
+		/*  4 */ "mmmmmm...mmmmmm"
+		/*  5 */ "mmmmmm...mmmmmm"
+		/*  6 */ "mmmmmm...mmmmmm"
+		/*  7 */ "mmmmmm...mmmmmm"
+		/*  8 */ "mmmmmm...mmmmmm"
+		/*  9 */ "mmmmmm...mmmmmm",
+
+		// Connectors:
+		"0: 0, 5, 2: 4\n"  /* Type 0, direction X- */
+		"0: 7, 5, 9: 3\n"  /* Type 0, direction Z+ */
+		"0: 14, 5, 2: 5\n"  /* Type 0, direction X+ */,
 
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		10,
+
+		// DepthWeight:
+		"1:500",
+
+		// AddWeightIfSame:
+		0,
 	},  // BridgeTee
 
 
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// Corridor11:
-	// The data has been exported from gallery Nether, area index 36, ID 287
+	// The data has been exported from the gallery Nether, area index 36, ID 287, created by Aloe_vera
 	{
 		// Size:
 		11, 6, 5,  // SizeX = 11, SizeY = 6, SizeZ = 5
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		10, 5, 4,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
 		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
 		"b:113: 0\n"  /* netherbrickfence */
 		"c:114: 2\n"  /* netherbrickstairs */
-		"d:114: 3\n"  /* netherbrickstairs */,
+		"d:114: 3\n"  /* netherbrickstairs */
+		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*             1 */
+		/*    *   01234567890 */
+		/*  0 */ "aaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaa"
+
 		// Level 1
-		"aaaaaaaaaaa"
-		"aaaaaaaaaaa"
-		"aaaaaaaaaaa"
-		"aaaaaaaaaaa"
-		"aaaaaaaaaaa"
+		/* z\x*             1 */
+		/*    *   01234567890 */
+		/*  0 */ "aaaaaaaaaaa"
+		/*  1 */ "..........."
+		/*  2 */ "..........."
+		/*  3 */ "..........."
+		/*  4 */ "aaaaaaaaaaa"
 
 		// Level 2
-		"aaaaaaaaaaa"
-		"..........."
-		"..........."
-		"..........."
-		"aaaaaaaaaaa"
+		/* z\x*             1 */
+		/*    *   01234567890 */
+		/*  0 */ "abababababa"
+		/*  1 */ "..........."
+		/*  2 */ "..........."
+		/*  3 */ "..........."
+		/*  4 */ "abababababa"
 
 		// Level 3
-		"abababababa"
-		"..........."
-		"..........."
-		"..........."
-		"abababababa"
+		/* z\x*             1 */
+		/*    *   01234567890 */
+		/*  0 */ "abababababa"
+		/*  1 */ "..........."
+		/*  2 */ "..........."
+		/*  3 */ "..........."
+		/*  4 */ "abababababa"
 
 		// Level 4
-		"abababababa"
-		"..........."
-		"..........."
-		"..........."
-		"abababababa"
+		/* z\x*             1 */
+		/*    *   01234567890 */
+		/*  0 */ "abababababa"
+		/*  1 */ "..........."
+		/*  2 */ "..........."
+		/*  3 */ "..........."
+		/*  4 */ "abababababa"
 
 		// Level 5
-		"abababababa"
-		"..........."
-		"..........."
-		"..........."
-		"abababababa"
-
-		// Level 6
-		"ccccccccccc"
-		"aaaaaaaaaaa"
-		"aaaaaaaaaaa"
-		"aaaaaaaaaaa"
-		"ddddddddddd",
-
-		// Connections:
-		"1:  0, 1, 2: 4\n"  /* Type 1, BLOCK_FACE_XM */
-		"1: 10, 1, 2: 5\n"  /* Type 1, BLOCK_FACE_XP */,
+		/* z\x*             1 */
+		/*    *   01234567890 */
+		/*  0 */ "ccccccccccc"
+		/*  1 */ "aaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaa"
+		/*  4 */ "ddddddddddd",
+
+		// Connectors:
+		"1: 10, 1, 2: 5\n"  /* Type 1, direction X+ */
+		"1: 0, 1, 2: 4\n"  /* Type 1, direction X- */,
 
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		300,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		0,
 	},  // Corridor11
 
 
+
 	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// Corridor13:
-	// The data has been exported from gallery Nether, area index 35, ID 286
+	// The data has been exported from the gallery Nether, area index 35, ID 286, created by Aloe_vera
 	{
 		// Size:
 		13, 6, 5,  // SizeX = 13, SizeY = 6, SizeZ = 5
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		12, 5, 4,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
-		"a:112: 0\n"  /* netherbrick */
 		".:  0: 0\n"  /* air */
-		"c:113: 0\n"  /* netherbrickfence */
-		"d:114: 2\n"  /* netherbrickstairs */
-		"e:114: 3\n"  /* netherbrickstairs */,
+		"a:112: 0\n"  /* netherbrick */
+		"b:113: 0\n"  /* netherbrickfence */
+		"c:114: 2\n"  /* netherbrickstairs */
+		"d:114: 3\n"  /* netherbrickstairs */
+		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaa"
+
 		// Level 1
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaaaaaaaaaaa"
+		/*  1 */ "............."
+		/*  2 */ "............."
+		/*  3 */ "............."
+		/*  4 */ "aaaaaaaaaaaaa"
 
 		// Level 2
-		"aaaaaaaaaaaaa"
-		"............."
-		"............."
-		"............."
-		"aaaaaaaaaaaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "ababababababa"
+		/*  1 */ "............."
+		/*  2 */ "............."
+		/*  3 */ "............."
+		/*  4 */ "ababababababa"
 
 		// Level 3
-		"acacacacacaca"
-		"............."
-		"............."
-		"............."
-		"acacacacacaca"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "ababababababa"
+		/*  1 */ "............."
+		/*  2 */ "............."
+		/*  3 */ "............."
+		/*  4 */ "ababababababa"
 
 		// Level 4
-		"acacacacacaca"
-		"............."
-		"............."
-		"............."
-		"acacacacacaca"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "ababababababa"
+		/*  1 */ "............."
+		/*  2 */ "............."
+		/*  3 */ "............."
+		/*  4 */ "ababababababa"
 
 		// Level 5
-		"acacacacacaca"
-		"............."
-		"............."
-		"............."
-		"acacacacacaca"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "ccccccccccccc"
+		/*  1 */ "aaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaa"
+		/*  4 */ "ddddddddddddd",
+
+		// Connectors:
+		"1: 12, 1, 2: 5\n"  /* Type 1, direction X+ */
+		"1: 0, 1, 2: 4\n"  /* Type 1, direction X- */,
 
-		// Level 6
-		"ddddddddddddd"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"eeeeeeeeeeeee",
-		
-		// Connections:
-		"1:  0, 1, 2: 4\n"  /* Type 1, BLOCK_FACE_XM */
-		"1: 12, 1, 2: 5\n"  /* Type 1, BLOCK_FACE_XP */,
-		
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		300,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		0,
 	},  // Corridor13
 
 
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+	// Corridor5:
+	// The data has been exported from the gallery Nether, area index 65, ID 330, created by xoft
+	{
+		// Size:
+		5, 6, 5,  // SizeX = 5, SizeY = 6, SizeZ = 5
+
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		4, 5, 4,  // MaxX, MaxY, MaxZ
+
+		// Block definitions:
+		".:  0: 0\n"  /* air */
+		"a:112: 0\n"  /* netherbrick */
+		"b:113: 0\n"  /* netherbrickfence */
+		"c:114: 2\n"  /* netherbrickstairs */
+		"d:114: 3\n"  /* netherbrickstairs */
+		"m: 19: 0\n"  /* sponge */,
+
+		// Block data:
+		// Level 0
+		/* z\x*   01234 */
+		/*  0 */ "aaaaa"
+		/*  1 */ "aaaaa"
+		/*  2 */ "aaaaa"
+		/*  3 */ "aaaaa"
+		/*  4 */ "aaaaa"
+
+		// Level 1
+		/* z\x*   01234 */
+		/*  0 */ "aaaaa"
+		/*  1 */ "....."
+		/*  2 */ "....."
+		/*  3 */ "....."
+		/*  4 */ "aaaaa"
+
+		// Level 2
+		/* z\x*   01234 */
+		/*  0 */ "ababa"
+		/*  1 */ "....."
+		/*  2 */ "....."
+		/*  3 */ "....."
+		/*  4 */ "ababa"
+
+		// Level 3
+		/* z\x*   01234 */
+		/*  0 */ "ababa"
+		/*  1 */ "....."
+		/*  2 */ "....."
+		/*  3 */ "....."
+		/*  4 */ "ababa"
+
+		// Level 4
+		/* z\x*   01234 */
+		/*  0 */ "ababa"
+		/*  1 */ "....."
+		/*  2 */ "....."
+		/*  3 */ "....."
+		/*  4 */ "ababa"
+
+		// Level 5
+		/* z\x*   01234 */
+		/*  0 */ "ccccc"
+		/*  1 */ "aaaaa"
+		/*  2 */ "aaaaa"
+		/*  3 */ "aaaaa"
+		/*  4 */ "ddddd",
+
+		// Connectors:
+		"1: 4, 1, 2: 5\n"  /* Type 1, direction X+ */
+		"1: 0, 1, 2: 4\n"  /* Type 1, direction X- */,
+
+		// AllowedRotations:
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
+		// Merge strategy:
+		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		500,
+
+		// DepthWeight:
+		"6:0|12:0|18:0",
+
+		// AddWeightIfSame:
+		500,
+	},  // Corridor5
+
+
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// CorridorCorner5:
-	// The data has been exported from gallery Nether, area index 10, ID 40
+	// The data has been exported from the gallery Nether, area index 10, ID 40, created by xoft
 	{
 		// Size:
 		11, 6, 11,  // SizeX = 11, SizeY = 6, SizeZ = 11
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		10, 5, 10,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
 		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
@@ -1130,211 +2539,391 @@ const cPrefab::sDef g_NetherFortPrefabs1[] =
 		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*             1 */
+		/*    *   01234567890 */
+		/*  0 */ "aaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaa"
+		/*  5 */ "aaaaa......"
+		/*  6 */ "aaaaa......"
+		/*  7 */ "aaaaa......"
+		/*  8 */ "aaaaa......"
+		/*  9 */ "aaaaa......"
+		/* 10 */ "aaaaa......"
+
 		// Level 1
-		"aaaaaaaaaaa"
-		"aaaaaaaaaaa"
-		"aaaaaaaaaaa"
-		"aaaaaaaaaaa"
-		"aaaaaaaaaaa"
-		"aaaaammmmmm"
-		"aaaaammmmmm"
-		"aaaaammmmmm"
-		"aaaaammmmmm"
-		"aaaaammmmmm"
-		"aaaaammmmmm"
+		/* z\x*             1 */
+		/*    *   01234567890 */
+		/*  0 */ "aaaaaaaaaaa"
+		/*  1 */ "a.........."
+		/*  2 */ "a.........."
+		/*  3 */ "a.........."
+		/*  4 */ "a...aaaaaaa"
+		/*  5 */ "a...a......"
+		/*  6 */ "a...a......"
+		/*  7 */ "a...a......"
+		/*  8 */ "a...a......"
+		/*  9 */ "a...a......"
+		/* 10 */ "a...a......"
 
 		// Level 2
-		"aaaaaaaaaaa"
-		"a.........."
-		"a.........."
-		"a.........."
-		"a...aaaaaaa"
-		"a...ammmmmm"
-		"a...ammmmmm"
-		"a...ammmmmm"
-		"a...ammmmmm"
-		"a...ammmmmm"
-		"a...ammmmmm"
+		/* z\x*             1 */
+		/*    *   01234567890 */
+		/*  0 */ "abababababa"
+		/*  1 */ "b.........."
+		/*  2 */ "a.........."
+		/*  3 */ "b.........."
+		/*  4 */ "a...abababa"
+		/*  5 */ "b...b......"
+		/*  6 */ "a...a......"
+		/*  7 */ "b...b......"
+		/*  8 */ "a...a......"
+		/*  9 */ "b...b......"
+		/* 10 */ "a...a......"
 
 		// Level 3
-		"abababababa"
-		"b.........."
-		"a.........."
-		"b.........."
-		"a...abababa"
-		"b...bmmmmmm"
-		"a...ammmmmm"
-		"b...bmmmmmm"
-		"a...ammmmmm"
-		"b...bmmmmmm"
-		"a...ammmmmm"
+		/* z\x*             1 */
+		/*    *   01234567890 */
+		/*  0 */ "abababababa"
+		/*  1 */ "b.........."
+		/*  2 */ "a.........."
+		/*  3 */ "b.........."
+		/*  4 */ "a...abababa"
+		/*  5 */ "b...b......"
+		/*  6 */ "a...a......"
+		/*  7 */ "b...b......"
+		/*  8 */ "a...a......"
+		/*  9 */ "b...b......"
+		/* 10 */ "a...a......"
 
 		// Level 4
-		"abababababa"
-		"b.........."
-		"a.........."
-		"b.........."
-		"a...abababa"
-		"b...bmmmmmm"
-		"a...ammmmmm"
-		"b...bmmmmmm"
-		"a...ammmmmm"
-		"b...bmmmmmm"
-		"a...ammmmmm"
+		/* z\x*             1 */
+		/*    *   01234567890 */
+		/*  0 */ "abababababa"
+		/*  1 */ "b.........."
+		/*  2 */ "a.........."
+		/*  3 */ "b.........."
+		/*  4 */ "a...abababa"
+		/*  5 */ "b...b......"
+		/*  6 */ "a...a......"
+		/*  7 */ "b...b......"
+		/*  8 */ "a...a......"
+		/*  9 */ "b...b......"
+		/* 10 */ "a...a......"
 
 		// Level 5
-		"abababababa"
-		"b.........."
-		"a.........."
-		"b.........."
-		"a...abababa"
-		"b...bmmmmmm"
-		"a...ammmmmm"
-		"b...bmmmmmm"
-		"a...ammmmmm"
-		"b...bmmmmmm"
-		"a...ammmmmm"
-
-		// Level 6
-		"ccccccccccc"
-		"daaaaaaaaaa"
-		"daaaaaaaaaa"
-		"daaaaaaaaaa"
-		"daaaeeeeeee"
-		"daaafmmmmmm"
-		"daaafmmmmmm"
-		"daaafmmmmmm"
-		"daaafmmmmmm"
-		"daaafmmmmmm"
-		"daaafmmmmmm",
-		
-		// Connections:
-		"1: 10, 1,  2: 5\n"  /* Type 1, BLOCK_FACE_XP */
-		"1:  2, 1, 10: 3\n"  /* Type 1, BLOCK_FACE_ZP */,
+		/* z\x*             1 */
+		/*    *   01234567890 */
+		/*  0 */ "ccccccccccc"
+		/*  1 */ "daaaaaaaaaa"
+		/*  2 */ "daaaaaaaaaa"
+		/*  3 */ "daaaaaaaaaa"
+		/*  4 */ "daaaeeeeeee"
+		/*  5 */ "daaaf......"
+		/*  6 */ "daaaf......"
+		/*  7 */ "daaaf......"
+		/*  8 */ "daaaf......"
+		/*  9 */ "daaaf......"
+		/* 10 */ "daaaf......",
+
+		// Connectors:
+		"1: 2, 1, 10: 3\n"  /* Type 1, direction Z+ */
+		"1: 10, 1, 2: 5\n"  /* Type 1, direction X+ */,
 
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		100,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		0,
 	},  // CorridorCorner5
 
 
-	// CorridorCorner5:
-	// The data has been exported from gallery Nether, area index 10, ID 40
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+	// CorridorCornerChest5:
+	// The data has been exported from the gallery Nether, area index 42, ID 293, created by STR_Warrior
 	{
 		// Size:
 		11, 6, 11,  // SizeX = 11, SizeY = 6, SizeZ = 11
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		10, 5, 10,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
 		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
-		"b:113: 0\n"  /* netherbrickfence */
-		"c:114: 2\n"  /* netherbrickstairs */
+		"b: 54: 5\n"  /* chest */
+		"c:113: 0\n"  /* netherbrickfence */
 		"d:114: 0\n"  /* netherbrickstairs */
-		"e:114: 3\n"  /* netherbrickstairs */
+		"e:114: 2\n"  /* netherbrickstairs */
 		"f:114: 1\n"  /* netherbrickstairs */
-		"g: 54: 5\n"  /* chest */
+		"g:114: 3\n"  /* netherbrickstairs */
 		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*             1 */
+		/*    *   01234567890 */
+		/*  0 */ "aaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaa"
+		/*  5 */ "aaaaammmmmm"
+		/*  6 */ "aaaaammmmmm"
+		/*  7 */ "aaaaammmmmm"
+		/*  8 */ "aaaaammmmmm"
+		/*  9 */ "aaaaammmmmm"
+		/* 10 */ "aaaaammmmmm"
+
 		// Level 1
-		"aaaaaaaaaaa"
-		"aaaaaaaaaaa"
-		"aaaaaaaaaaa"
-		"aaaaaaaaaaa"
-		"aaaaaaaaaaa"
-		"aaaaammmmmm"
-		"aaaaammmmmm"
-		"aaaaammmmmm"
-		"aaaaammmmmm"
-		"aaaaammmmmm"
-		"aaaaammmmmm"
+		/* z\x*             1 */
+		/*    *   01234567890 */
+		/*  0 */ "aaaaaaaaaaa"
+		/*  1 */ "ab........."
+		/*  2 */ "a.........."
+		/*  3 */ "a.........."
+		/*  4 */ "a...aaaaaaa"
+		/*  5 */ "a...ammmmmm"
+		/*  6 */ "a...ammmmmm"
+		/*  7 */ "a...ammmmmm"
+		/*  8 */ "a...ammmmmm"
+		/*  9 */ "a...ammmmmm"
+		/* 10 */ "a...ammmmmm"
 
 		// Level 2
-		"aaaaaaaaaaa"
-		"ag........."
-		"a.........."
-		"a.........."
-		"a...aaaaaaa"
-		"a...ammmmmm"
-		"a...ammmmmm"
-		"a...ammmmmm"
-		"a...ammmmmm"
-		"a...ammmmmm"
-		"a...ammmmmm"
+		/* z\x*             1 */
+		/*    *   01234567890 */
+		/*  0 */ "acacacacaca"
+		/*  1 */ "c.........."
+		/*  2 */ "a.........."
+		/*  3 */ "c.........."
+		/*  4 */ "a...acacaca"
+		/*  5 */ "c...cmmmmmm"
+		/*  6 */ "a...ammmmmm"
+		/*  7 */ "c...cmmmmmm"
+		/*  8 */ "a...ammmmmm"
+		/*  9 */ "c...cmmmmmm"
+		/* 10 */ "a...ammmmmm"
 
 		// Level 3
-		"abababababa"
-		"b.........."
-		"a.........."
-		"b.........."
-		"a...abababa"
-		"b...bmmmmmm"
-		"a...ammmmmm"
-		"b...bmmmmmm"
-		"a...ammmmmm"
-		"b...bmmmmmm"
-		"a...ammmmmm"
+		/* z\x*             1 */
+		/*    *   01234567890 */
+		/*  0 */ "acacacacaca"
+		/*  1 */ "c.........."
+		/*  2 */ "a.........."
+		/*  3 */ "c.........."
+		/*  4 */ "a...acacaca"
+		/*  5 */ "c...cmmmmmm"
+		/*  6 */ "a...ammmmmm"
+		/*  7 */ "c...cmmmmmm"
+		/*  8 */ "a...ammmmmm"
+		/*  9 */ "c...cmmmmmm"
+		/* 10 */ "a...ammmmmm"
 
 		// Level 4
-		"abababababa"
-		"b.........."
-		"a.........."
-		"b.........."
-		"a...abababa"
-		"b...bmmmmmm"
-		"a...ammmmmm"
-		"b...bmmmmmm"
-		"a...ammmmmm"
-		"b...bmmmmmm"
-		"a...ammmmmm"
+		/* z\x*             1 */
+		/*    *   01234567890 */
+		/*  0 */ "acacacacaca"
+		/*  1 */ "c.........."
+		/*  2 */ "a.........."
+		/*  3 */ "c.........."
+		/*  4 */ "a...acacaca"
+		/*  5 */ "c...cmmmmmm"
+		/*  6 */ "a...ammmmmm"
+		/*  7 */ "c...cmmmmmm"
+		/*  8 */ "a...ammmmmm"
+		/*  9 */ "c...cmmmmmm"
+		/* 10 */ "a...ammmmmm"
 
 		// Level 5
-		"abababababa"
-		"b.........."
-		"a.........."
-		"b.........."
-		"a...abababa"
-		"b...bmmmmmm"
-		"a...ammmmmm"
-		"b...bmmmmmm"
-		"a...ammmmmm"
-		"b...bmmmmmm"
-		"a...ammmmmm"
+		/* z\x*             1 */
+		/*    *   01234567890 */
+		/*  0 */ "deeeeeeeeee"
+		/*  1 */ "daaaaaaaaaa"
+		/*  2 */ "daaaaaaaaaa"
+		/*  3 */ "daaaaaaaaaa"
+		/*  4 */ "daaafgggggg"
+		/*  5 */ "daaafmmmmmm"
+		/*  6 */ "daaafmmmmmm"
+		/*  7 */ "daaafmmmmmm"
+		/*  8 */ "daaafmmmmmm"
+		/*  9 */ "daaafmmmmmm"
+		/* 10 */ "daaafmmmmmm",
+
+		// Connectors:
+		"1: 10, 1, 2: 5\n"  /* Type 1, direction X+ */
+		"1: 2, 1, 10: 3\n"  /* Type 1, direction Z+ */,
 
-		// Level 6
-		"ccccccccccc"
-		"daaaaaaaaaa"
-		"daaaaaaaaaa"
-		"daaaaaaaaaa"
-		"daaaeeeeeee"
-		"daaafmmmmmm"
-		"daaafmmmmmm"
-		"daaafmmmmmm"
-		"daaafmmmmmm"
-		"daaafmmmmmm"
-		"daaafmmmmmm",
-		
-		// Connections:
-		"1: 10, 1,  2: 5\n"  /* Type 1, BLOCK_FACE_XP */
-		"1:  2, 1, 10: 3\n"  /* Type 1, BLOCK_FACE_ZP */,
+		// AllowedRotations:
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
+		// Merge strategy:
+		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		100,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		0,
+	},  // CorridorCornerChest5
+
+
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+	// CorridorCrossing:
+	// The data has been exported from the gallery Nether, area index 63, ID 328, created by xoft
+	{
+		// Size:
+		9, 6, 9,  // SizeX = 9, SizeY = 6, SizeZ = 9
+
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		8, 5, 8,  // MaxX, MaxY, MaxZ
+
+		// Block definitions:
+		".:  0: 0\n"  /* air */
+		"a:112: 0\n"  /* netherbrick */
+		"b:113: 0\n"  /* netherbrickfence */
+		"c:114: 0\n"  /* netherbrickstairs */
+		"d:114: 1\n"  /* netherbrickstairs */
+		"e:114: 2\n"  /* netherbrickstairs */
+		"f:114: 3\n"  /* netherbrickstairs */
+		"m: 19: 0\n"  /* sponge */,
+
+		// Block data:
+		// Level 0
+		/* z\x*   012345678 */
+		/*  0 */ "mmaaaaamm"
+		/*  1 */ "mmaaaaamm"
+		/*  2 */ "aaaaaaaaa"
+		/*  3 */ "aaaaaaaaa"
+		/*  4 */ "aaaaaaaaa"
+		/*  5 */ "aaaaaaaaa"
+		/*  6 */ "aaaaaaaaa"
+		/*  7 */ "mmaaaaamm"
+		/*  8 */ "mmaaaaamm"
+
+		// Level 1
+		/* z\x*   012345678 */
+		/*  0 */ "mma...amm"
+		/*  1 */ "mma...amm"
+		/*  2 */ "aaa...aaa"
+		/*  3 */ "........."
+		/*  4 */ "........."
+		/*  5 */ "........."
+		/*  6 */ "aaa...aaa"
+		/*  7 */ "mma...amm"
+		/*  8 */ "mma...amm"
+
+		// Level 2
+		/* z\x*   012345678 */
+		/*  0 */ "mma...amm"
+		/*  1 */ "mmb...bmm"
+		/*  2 */ "aba...aba"
+		/*  3 */ "........."
+		/*  4 */ "........."
+		/*  5 */ "........."
+		/*  6 */ "aba...aba"
+		/*  7 */ "mmb...bmm"
+		/*  8 */ "mma...amm"
+
+		// Level 3
+		/* z\x*   012345678 */
+		/*  0 */ "mma...amm"
+		/*  1 */ "mmb...bmm"
+		/*  2 */ "aba...aba"
+		/*  3 */ "........."
+		/*  4 */ "........."
+		/*  5 */ "........."
+		/*  6 */ "aba...aba"
+		/*  7 */ "mmb...bmm"
+		/*  8 */ "mma...amm"
+
+		// Level 4
+		/* z\x*   012345678 */
+		/*  0 */ "mma...amm"
+		/*  1 */ "mmb...bmm"
+		/*  2 */ "aba...aba"
+		/*  3 */ "........."
+		/*  4 */ "........."
+		/*  5 */ "........."
+		/*  6 */ "aba...aba"
+		/*  7 */ "mmb...bmm"
+		/*  8 */ "mma...amm"
+
+		// Level 5
+		/* z\x*   012345678 */
+		/*  0 */ "mmcaaadmm"
+		/*  1 */ "mmcaaadmm"
+		/*  2 */ "eeeaaaeee"
+		/*  3 */ "aaaaaaaaa"
+		/*  4 */ "aaaaaaaaa"
+		/*  5 */ "aaaaaaaaa"
+		/*  6 */ "ffcaaadff"
+		/*  7 */ "mmcaaadmm"
+		/*  8 */ "mmcaaadmm",
+
+		// Connectors:
+		"1: 8, 1, 4: 5\n"  /* Type 1, direction X+ */
+		"1: 4, 1, 0: 2\n"  /* Type 1, direction Z- */
+		"1: 4, 1, 8: 3\n"  /* Type 1, direction Z+ */
+		"1: 0, 1, 4: 4\n"  /* Type 1, direction X- */,
 
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
-	},  // CorridorCorner5Chest
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		100,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		-50,
+	},  // CorridorCrossing
+
 
 
 	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// CorridorStairs:
-	// The data has been exported from gallery Nether, area index 12, ID 42
+	// The data has been exported from the gallery Nether, area index 12, ID 42, created by xoft
 	{
 		// Size:
 		9, 13, 5,  // SizeX = 9, SizeY = 13, SizeZ = 5
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		8, 12, 4,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
 		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
@@ -1342,611 +2931,1109 @@ const cPrefab::sDef g_NetherFortPrefabs1[] =
 		"c:113: 0\n"  /* netherbrickfence */
 		"d:114: 2\n"  /* netherbrickstairs */
 		"e:114: 3\n"  /* netherbrickstairs */
-		"f: 19: 0\n"  /* sponge */,
+		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*   012345678 */
+		/*  0 */ "aaaaaaaaa"
+		/*  1 */ "aaaaaaaaa"
+		/*  2 */ "aaaaaaaaa"
+		/*  3 */ "aaaaaaaaa"
+		/*  4 */ "aaaaaaaaa"
+
 		// Level 1
-		"aaaaaaaaa"
-		"aaaaaaaaa"
-		"aaaaaaaaa"
-		"aaaaaaaaa"
-		"aaaaaaaaa"
+		/* z\x*   012345678 */
+		/*  0 */ "aaaaaaaaa"
+		/*  1 */ ".baaaaaaa"
+		/*  2 */ ".baaaaaaa"
+		/*  3 */ ".baaaaaaa"
+		/*  4 */ "aaaaaaaaa"
 
 		// Level 2
-		"aaaaaaaaa"
-		".baaaaaaa"
-		".baaaaaaa"
-		".baaaaaaa"
-		"aaaaaaaaa"
+		/* z\x*   012345678 */
+		/*  0 */ "acaaaaaaa"
+		/*  1 */ "..baaaaaa"
+		/*  2 */ "..baaaaaa"
+		/*  3 */ "..baaaaaa"
+		/*  4 */ "acaaaaaaa"
 
 		// Level 3
-		"acaaaaaaa"
-		"..baaaaaa"
-		"..baaaaaa"
-		"..baaaaaa"
-		"acaaaaaaa"
+		/* z\x*   012345678 */
+		/*  0 */ "acaaaaaaa"
+		/*  1 */ "...baaaaa"
+		/*  2 */ "...baaaaa"
+		/*  3 */ "...baaaaa"
+		/*  4 */ "acaaaaaaa"
 
 		// Level 4
-		"acaaaaaaa"
-		"...baaaaa"
-		"...baaaaa"
-		"...baaaaa"
-		"acaaaaaaa"
+		/* z\x*   012345678 */
+		/*  0 */ "acacaaaaa"
+		/*  1 */ "....baaaa"
+		/*  2 */ "....baaaa"
+		/*  3 */ "....baaaa"
+		/*  4 */ "acacaaaaa"
 
 		// Level 5
-		"acacaaaaa"
-		"....baaaa"
-		"....baaaa"
-		"....baaaa"
-		"acacaaaaa"
+		/* z\x*   012345678 */
+		/*  0 */ "aaacaaaaa"
+		/*  1 */ ".....baaa"
+		/*  2 */ ".....baaa"
+		/*  3 */ ".....baaa"
+		/*  4 */ "aaacaaaaa"
 
 		// Level 6
-		"aaacaaaaa"
-		".....baaa"
-		".....baaa"
-		".....baaa"
-		"aaacaaaaa"
+		/* z\x*   012345678 */
+		/*  0 */ "daacacaaa"
+		/*  1 */ "a.....baa"
+		/*  2 */ "a.....baa"
+		/*  3 */ "a.....baa"
+		/*  4 */ "eaacacaaa"
 
 		// Level 7
-		"daacacaaa"
-		"a.....baa"
-		"a.....baa"
-		"a.....baa"
-		"eaacacaaa"
+		/* z\x*   012345678 */
+		/*  0 */ "mdaaacaaa"
+		/*  1 */ "ma.....ba"
+		/*  2 */ "ma.....ba"
+		/*  3 */ "ma.....ba"
+		/*  4 */ "meaaacaaa"
 
 		// Level 8
-		"fdaaacaaa"
-		"fa.....ba"
-		"fa.....ba"
-		"fa.....ba"
-		"feaaacaaa"
+		/* z\x*   012345678 */
+		/*  0 */ "mmdaacaca"
+		/*  1 */ "mma......"
+		/*  2 */ "mma......"
+		/*  3 */ "mma......"
+		/*  4 */ "mmeaacaca"
 
 		// Level 9
-		"ffdaacaca"
-		"ffa......"
-		"ffa......"
-		"ffa......"
-		"ffeaacaca"
+		/* z\x*   012345678 */
+		/*  0 */ "mmmdaaaca"
+		/*  1 */ "mmma....."
+		/*  2 */ "mmma....."
+		/*  3 */ "mmma....."
+		/*  4 */ "mmmeaaaca"
 
 		// Level 10
-		"fffdaaaca"
-		"fffa....."
-		"fffa....."
-		"fffa....."
-		"fffeaaaca"
+		/* z\x*   012345678 */
+		/*  0 */ "mmmmdaaca"
+		/*  1 */ "mmmma...."
+		/*  2 */ "mmmma...."
+		/*  3 */ "mmmma...."
+		/*  4 */ "mmmmeaaca"
 
 		// Level 11
-		"ffffdaaca"
-		"ffffa...."
-		"ffffa...."
-		"ffffa...."
-		"ffffeaaca"
+		/* z\x*   012345678 */
+		/*  0 */ "mmmmmdaaa"
+		/*  1 */ "mmmmma..."
+		/*  2 */ "mmmmma..."
+		/*  3 */ "mmmmma..."
+		/*  4 */ "mmmmmeaaa"
 
 		// Level 12
-		"fffffdaaa"
-		"fffffa..."
-		"fffffa..."
-		"fffffa..."
-		"fffffeaaa"
+		/* z\x*   012345678 */
+		/*  0 */ "mmmmmmddd"
+		/*  1 */ "mmmmmmaaa"
+		/*  2 */ "mmmmmmaaa"
+		/*  3 */ "mmmmmmaaa"
+		/*  4 */ "mmmmmmeee",
+
+		// Connectors:
+		"1: 0, 1, 2: 4\n"  /* Type 1, direction X- */
+		"1: 8, 8, 2: 5\n"  /* Type 1, direction X+ */,
 
-		// Level 13
-		"ffffffddd"
-		"ffffffaaa"
-		"ffffffaaa"
-		"ffffffaaa"
-		"ffffffeee",
-
-		// Connections:
-		"1: 0, 1, 2: 4\n"  /* Type 1, BLOCK_FACE_XM */
-		"1: 8, 8, 2: 5\n"  /* Type 1, BLOCK_FACE_XP */,
-		
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		1000,
+
+		// DepthWeight:
+		"0:0|2:0|4:0|6:0|8:0|10:0|12:0|14:0|16:0|18:0",
+
+		// AddWeightIfSame:
+		0,
 	},  // CorridorStairs
 
 
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+	// DarkCorridor:
+	// The data has been exported from the gallery Nether, area index 3, ID 30, created by STR_Warrior
+	{
+		// Size:
+		14, 6, 5,  // SizeX = 14, SizeY = 6, SizeZ = 5
+
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		13, 5, 4,  // MaxX, MaxY, MaxZ
+
+		// Block definitions:
+		".:  0: 0\n"  /* air */
+		"a:112: 0\n"  /* netherbrick */
+		"b:113: 0\n"  /* netherbrickfence */
+		"c:114: 2\n"  /* netherbrickstairs */
+		"d:114: 3\n"  /* netherbrickstairs */
+		"m: 19: 0\n"  /* sponge */,
+
+		// Block data:
+		// Level 0
+		/* z\x*             1111 */
+		/*    *   01234567890123 */
+		/*  0 */ "aaaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaaa"
+
+		// Level 1
+		/* z\x*             1111 */
+		/*    *   01234567890123 */
+		/*  0 */ "aaaaaaaaaaaaaa"
+		/*  1 */ ".............."
+		/*  2 */ ".............."
+		/*  3 */ ".............."
+		/*  4 */ "aaaaaaaaaaaaaa"
+
+		// Level 2
+		/* z\x*             1111 */
+		/*    *   01234567890123 */
+		/*  0 */ "aabaaaaaaaabaa"
+		/*  1 */ ".............."
+		/*  2 */ ".............."
+		/*  3 */ ".............."
+		/*  4 */ "aabaaaaaaaabaa"
+
+		// Level 3
+		/* z\x*             1111 */
+		/*    *   01234567890123 */
+		/*  0 */ "aabaaaaaaaabaa"
+		/*  1 */ ".............."
+		/*  2 */ ".............."
+		/*  3 */ ".............."
+		/*  4 */ "aabaaaaaaaabaa"
+
+		// Level 4
+		/* z\x*             1111 */
+		/*    *   01234567890123 */
+		/*  0 */ "aabaaaaaaaabaa"
+		/*  1 */ ".............."
+		/*  2 */ ".............."
+		/*  3 */ ".............."
+		/*  4 */ "aabaaaaaaaabaa"
+
+		// Level 5
+		/* z\x*             1111 */
+		/*    *   01234567890123 */
+		/*  0 */ "cccccccccccccc"
+		/*  1 */ "aaaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaaa"
+		/*  4 */ "dddddddddddddd",
+
+		// Connectors:
+		"1: 0, 1, 2: 4\n"  /* Type 1, direction X- */
+		"1: 13, 1, 2: 5\n"  /* Type 1, direction X+ */,
+
+		// AllowedRotations:
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
+		// Merge strategy:
+		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		100,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		0,
+	},  // DarkCorridor
+
+
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// LavaStaircase:
-	// The data has been exported from gallery Nether, area index 28, ID 278
+	// The data has been exported from the gallery Nether, area index 28, ID 278, created by Aloe_vera
 	{
 		// Size:
 		15, 11, 15,  // SizeX = 15, SizeY = 11, SizeZ = 15
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		14, 10, 14,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
 		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
 		"b:113: 0\n"  /* netherbrickfence */
-		"c: 11: 0\n"  /* lava */,
+		"c: 10: 0\n"  /* lava */
+		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aaaaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaaaa"
+		/*  5 */ "aaaaaaaaaaaaaaa"
+		/*  6 */ "aaaaaaaaaaaaaaa"
+		/*  7 */ "aaaaaaaaaaaaaaa"
+		/*  8 */ "aaaaaaaaaaaaaaa"
+		/*  9 */ "aaaaaaaaaaaaaaa"
+		/* 10 */ "aaaaaaaaaaaaaaa"
+		/* 11 */ "aaaaaaaaaaaaaaa"
+		/* 12 */ "aaaaaaaaaaaaaaa"
+		/* 13 */ "aaaaaaaaaaaaaaa"
+		/* 14 */ "aaaaaaaaaaaaaaa"
+
 		// Level 1
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aaaaaaaa...aaaa"
+		/*  1 */ "aaaaa.........a"
+		/*  2 */ "aaaaa.........a"
+		/*  3 */ "aaaaab........a"
+		/*  4 */ "accca...aaaa..a"
+		/*  5 */ "accca...acca..a"
+		/*  6 */ "acccaaaaacca..a"
+		/*  7 */ "acccccccccca..a"
+		/*  8 */ "acccaaaaacca..a"
+		/*  9 */ "accca...acca..a"
+		/* 10 */ "accca...aaaa..a"
+		/* 11 */ "aaaaab........a"
+		/* 12 */ "aaaaa.........a"
+		/* 13 */ "aaaaa.........a"
+		/* 14 */ "aaaaaaaa...aaaa"
 
 		// Level 2
-		"aaaaaaaa...aaaa"
-		"aaaaa.........a"
-		"aaaaa.........a"
-		"aaaaab........a"
-		"accca...aaaa..a"
-		"accca...acca..a"
-		"acccaaaaacca..a"
-		"acccccccccca..a"
-		"acccaaaaacca..a"
-		"accca...acca..a"
-		"accca...aaaa..a"
-		"aaaaab........a"
-		"aaaaa.........a"
-		"aaaaa.........a"
-		"aaaaaaaa...aaaa"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aaaaaaaa...aaaa"
+		/*  1 */ "aaaa..........a"
+		/*  2 */ "aaaa..........a"
+		/*  3 */ "aaaabb........a"
+		/*  4 */ "aaaa..........a"
+		/*  5 */ "a.............a"
+		/*  6 */ "a.............a"
+		/*  7 */ "a.............a"
+		/*  8 */ "a.............a"
+		/*  9 */ "a.............a"
+		/* 10 */ "aaaa..........a"
+		/* 11 */ "aaaabb........a"
+		/* 12 */ "aaaa..........a"
+		/* 13 */ "aaaa..........a"
+		/* 14 */ "aaaaaaaa...aaaa"
 
 		// Level 3
-		"aaaaaaaa...aaaa"
-		"aaaa..........a"
-		"aaaa..........a"
-		"aaaabb........a"
-		"aaaa..........a"
-		"a.............a"
-		"a.............a"
-		"a.............a"
-		"a.............a"
-		"a.............a"
-		"aaaa..........a"
-		"aaaabb........a"
-		"aaaa..........a"
-		"aaaa..........a"
-		"aaaaaaaa...aaaa"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aaaaaaaa...aaaa"
+		/*  1 */ "a.............a"
+		/*  2 */ "a.............a"
+		/*  3 */ "a..bb.........a"
+		/*  4 */ "aaaa..........a"
+		/*  5 */ "aaaa..........a"
+		/*  6 */ "a.............a"
+		/*  7 */ "a.............a"
+		/*  8 */ "a.............a"
+		/*  9 */ "aaaa..........a"
+		/* 10 */ "aaaa..........a"
+		/* 11 */ "a..bb.........a"
+		/* 12 */ "a.............a"
+		/* 13 */ "a.............a"
+		/* 14 */ "aaaaaaaa...aaaa"
 
 		// Level 4
-		"aaaaaaaa...aaaa"
-		"a.............a"
-		"a.............a"
-		"a..bb.........a"
-		"aaaa..........a"
-		"aaaa..........a"
-		"a.............a"
-		"a.............a"
-		"a.............a"
-		"aaaa..........a"
-		"aaaa..........a"
-		"a..bb.........a"
-		"a.............a"
-		"a.............a"
-		"aaaaaaaa...aaaa"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aaaaaaaa...aaaa"
+		/*  1 */ "a.............a"
+		/*  2 */ "a.............a"
+		/*  3 */ "a..b..........a"
+		/*  4 */ "a..b..........a"
+		/*  5 */ "aaaa..........a"
+		/*  6 */ "aaaa..........a"
+		/*  7 */ "a.............a"
+		/*  8 */ "aaaa..........a"
+		/*  9 */ "aaaa..........a"
+		/* 10 */ "a..b..........a"
+		/* 11 */ "a..b..........a"
+		/* 12 */ "a.............a"
+		/* 13 */ "a.............a"
+		/* 14 */ "aaaaaaaa...aaaa"
 
 		// Level 5
-		"aaaaaaaabbbaaaa"
-		"a.............a"
-		"a.............a"
-		"a..b..........a"
-		"a..b..........a"
-		"aaaa..........a"
-		"aaaa..........a"
-		"a.............a"
-		"aaaa..........a"
-		"aaaa..........a"
-		"a..b..........a"
-		"a..b..........a"
-		"a.............a"
-		"a.............a"
-		"aaaaaaaabbbaaaa"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aaaaaaaaaaaaaaa"
+		/*  1 */ "a.............a"
+		/*  2 */ "a.............a"
+		/*  3 */ "a.............a"
+		/*  4 */ "a..b..........a"
+		/*  5 */ "a..b..........a"
+		/*  6 */ "aaaa..........a"
+		/*  7 */ "aaaa..........a"
+		/*  8 */ "aaaa..........a"
+		/*  9 */ "a..b..........a"
+		/* 10 */ "a..b..........a"
+		/* 11 */ "a.............a"
+		/* 12 */ "a.............a"
+		/* 13 */ "a.............a"
+		/* 14 */ "aaaaaaaaaaaaaaa"
 
 		// Level 6
-		"aaaaaaaaaaaaaaa"
-		"a.............a"
-		"a.............a"
-		"a.............a"
-		"a..b..........a"
-		"a..b..........a"
-		"aaaa..........a"
-		"aaaa..........a"
-		"aaaa..........a"
-		"a..b..........a"
-		"a..b..........a"
-		"a.............a"
-		"a.............a"
-		"a.............a"
-		"aaaaaaaaaaaaaaa"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aaaaaaaaaaaaaaa"
+		/*  1 */ "a.............a"
+		/*  2 */ "a.............a"
+		/*  3 */ "a.............a"
+		/*  4 */ "a.............a"
+		/*  5 */ "a..b..........a"
+		/*  6 */ "...b..........a"
+		/*  7 */ "...b..........a"
+		/*  8 */ "...b..........a"
+		/*  9 */ "a..b..........a"
+		/* 10 */ "a.............a"
+		/* 11 */ "a.............a"
+		/* 12 */ "a.............a"
+		/* 13 */ "a.............a"
+		/* 14 */ "aaaaaaaaaaaaaaa"
 
 		// Level 7
-		"aaaaaaaaaaaaaaa"
-		"a.............a"
-		"a.............a"
-		"a.............a"
-		"a.............a"
-		"a..b..........a"
-		"...b..........a"
-		"...b..........a"
-		"...b..........a"
-		"a..b..........a"
-		"a.............a"
-		"a.............a"
-		"a.............a"
-		"a.............a"
-		"aaaaaaaaaaaaaaa"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aababababababaa"
+		/*  1 */ "a.............a"
+		/*  2 */ "b.............b"
+		/*  3 */ "a.............a"
+		/*  4 */ "b.............b"
+		/*  5 */ "a.............a"
+		/*  6 */ "..............b"
+		/*  7 */ "..............a"
+		/*  8 */ "..............b"
+		/*  9 */ "a.............a"
+		/* 10 */ "b.............b"
+		/* 11 */ "a.............a"
+		/* 12 */ "b.............b"
+		/* 13 */ "a.............a"
+		/* 14 */ "aababababababaa"
 
 		// Level 8
-		"aababababababaa"
-		"a.............a"
-		"b.............b"
-		"a.............a"
-		"b.............b"
-		"a.............a"
-		"..............b"
-		"..............a"
-		"..............b"
-		"a.............a"
-		"b.............b"
-		"a.............a"
-		"b.............b"
-		"a.............a"
-		"aababababababaa"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aababababababaa"
+		/*  1 */ "a.............a"
+		/*  2 */ "b.............b"
+		/*  3 */ "a.............a"
+		/*  4 */ "b.............b"
+		/*  5 */ "a.............a"
+		/*  6 */ "..............b"
+		/*  7 */ "..............a"
+		/*  8 */ "..............b"
+		/*  9 */ "a.............a"
+		/* 10 */ "b.............b"
+		/* 11 */ "a.............a"
+		/* 12 */ "b.............b"
+		/* 13 */ "a.............a"
+		/* 14 */ "aababababababaa"
 
 		// Level 9
-		"aababababababaa"
-		"a.............a"
-		"b.............b"
-		"a.............a"
-		"b.............b"
-		"a.............a"
-		"..............b"
-		"..............a"
-		"..............b"
-		"a.............a"
-		"b.............b"
-		"a.............a"
-		"b.............b"
-		"a.............a"
-		"aababababababaa"
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aababababababaa"
+		/*  1 */ "a.............a"
+		/*  2 */ "b.............b"
+		/*  3 */ "a.............a"
+		/*  4 */ "b.............b"
+		/*  5 */ "a.............a"
+		/*  6 */ "..............b"
+		/*  7 */ "..............a"
+		/*  8 */ "..............b"
+		/*  9 */ "a.............a"
+		/* 10 */ "b.............b"
+		/* 11 */ "a.............a"
+		/* 12 */ "b.............b"
+		/* 13 */ "a.............a"
+		/* 14 */ "aababababababaa"
 
 		// Level 10
-		"aababababababaa"
-		"a.............a"
-		"b.............b"
-		"a.............a"
-		"b.............b"
-		"a.............a"
-		"..............b"
-		"..............a"
-		"..............b"
-		"a.............a"
-		"b.............b"
-		"a.............a"
-		"b.............b"
-		"a.............a"
-		"aababababababaa"
-
-		// Level 11
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa"
-		"aaaaaaaaaaaaaaa",
-		
-		// Connections:
-		"1:  0, 6,  7: 4\n"  /* Type 1, BLOCK_FACE_XM */
-		"0:  9, 1,  0: 2\n"  /* Type 0, BLOCK_FACE_ZM */
-		"0:  9, 1, 14: 3\n"  /* Type 0, BLOCK_FACE_ZP */,
+		/* z\x*             11111 */
+		/*    *   012345678901234 */
+		/*  0 */ "aaaaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaaaa"
+		/*  5 */ "aaaaaaaaaaaaaaa"
+		/*  6 */ "aaaaaaaaaaaaaaa"
+		/*  7 */ "aaaaaaaaaaaaaaa"
+		/*  8 */ "aaaaaaaaaaaaaaa"
+		/*  9 */ "aaaaaaaaaaaaaaa"
+		/* 10 */ "aaaaaaaaaaaaaaa"
+		/* 11 */ "aaaaaaaaaaaaaaa"
+		/* 12 */ "aaaaaaaaaaaaaaa"
+		/* 13 */ "aaaaaaaaaaaaaaa"
+		/* 14 */ "aaaaaaaaaaaaaaa",
+
+		// Connectors:
+		"1: 0, 6, 7: 4\n"  /* Type 1, direction X- */
+		"1: 9, 1, 14: 3\n"  /* Type 1, direction Z+ */
+		"1: 9, 1, 0: 2\n"  /* Type 1, direction Z- */,
 
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		10,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		0,
 	},  // LavaStaircase
 
 
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// LavaStaircaseBig:
-	// The data has been exported from gallery Nether, area index 31, ID 282
+	// The data has been exported from the gallery Nether, area index 31, ID 282, created by STR_Warrior
 	{
 		// Size:
 		12, 15, 15,  // SizeX = 12, SizeY = 15, SizeZ = 15
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		11, 14, 14,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
 		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
 		"b: 10: 0\n"  /* lava */
-		"c:113: 0\n"  /* netherbrickfence */,
+		"c:113: 0\n"  /* netherbrickfence */
+		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*             11 */
+		/*    *   012345678901 */
+		/*  0 */ "aaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaa"
+		/*  5 */ "aaaaaaaaaaaa"
+		/*  6 */ "aaaaaaaaaaaa"
+		/*  7 */ "aaaaaaaaaaaa"
+		/*  8 */ "aaaaaaaaaaaa"
+		/*  9 */ "aaaaaaaaaaaa"
+		/* 10 */ "aaaaaaaaaaaa"
+		/* 11 */ "aaaaaaaaaaaa"
+		/* 12 */ "aaaaaaaaaaaa"
+		/* 13 */ "aaaaaaaaaaaa"
+		/* 14 */ "aaaaaaaaaaaa"
+
 		// Level 1
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
+		/* z\x*             11 */
+		/*    *   012345678901 */
+		/*  0 */ "aaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaa"
+		/*  4 */ "abbbbbaaaaaa"
+		/*  5 */ "abbbbbbaaaaa"
+		/*  6 */ "abbbbbba...."
+		/*  7 */ "abbbbbba...."
+		/*  8 */ "abbbbbba...."
+		/*  9 */ "abbbbbbaaaaa"
+		/* 10 */ "abbbbb.aaaaa"
+		/* 11 */ "aaaaaaaaaaaa"
+		/* 12 */ "aaaaaaaaaaaa"
+		/* 13 */ "aaaaaaaaaaaa"
+		/* 14 */ "aaaaaaaaaaaa"
 
 		// Level 2
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"abbbbbaaaaaa"
-		"abbbbbbaaaaa"
-		"abbbbbba...."
-		"abbbbbba...."
-		"abbbbbba...."
-		"abbbbbbaaaaa"
-		"abbbbb.aaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
+		/* z\x*             11 */
+		/*    *   012345678901 */
+		/*  0 */ "aaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaa"
+		/*  4 */ "abbbbbaaaaaa"
+		/*  5 */ "abbbbbba...a"
+		/*  6 */ "abbbbbba...."
+		/*  7 */ "abbbbbba...."
+		/*  8 */ "abbbbbba...."
+		/*  9 */ "abbbbbba...a"
+		/* 10 */ "abbbbb.aaaaa"
+		/* 11 */ "aaaaaaaaaaaa"
+		/* 12 */ "aaaaaaaaaaaa"
+		/* 13 */ "aaaaaaaaaaaa"
+		/* 14 */ "aaaaaaaaaaaa"
 
 		// Level 3
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"abbbbbaaaaaa"
-		"abbbbbba...a"
-		"abbbbbba...."
-		"abbbbbba...."
-		"abbbbbba...."
-		"abbbbbba...a"
-		"abbbbb.aaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
+		/* z\x*             11 */
+		/*    *   012345678901 */
+		/*  0 */ "aaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaa"
+		/*  4 */ "abbbbbaa...a"
+		/*  5 */ "abbbbbba...a"
+		/*  6 */ "abbbbbba...."
+		/*  7 */ "abbbbbba...."
+		/*  8 */ "abbbbbba...."
+		/*  9 */ "abbbbbba...a"
+		/* 10 */ "abbbbbaa...a"
+		/* 11 */ "aaaaaaaaaaaa"
+		/* 12 */ "aaaaaaaaaaaa"
+		/* 13 */ "aaaaaaaaaaaa"
+		/* 14 */ "aaaaaaaaaaaa"
 
 		// Level 4
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"abbbbbaa...a"
-		"abbbbbba...a"
-		"abbbbbba...."
-		"abbbbbba...."
-		"abbbbbba...."
-		"abbbbbba...a"
-		"abbbbbaa...a"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
+		/* z\x*             11 */
+		/*    *   012345678901 */
+		/*  0 */ "aaaaaaaaaaaa"
+		/*  1 */ "aaaaa......a"
+		/*  2 */ "aaaaa......a"
+		/*  3 */ "aaaaacc....a"
+		/*  4 */ "a.....cc...a"
+		/*  5 */ "a......c...a"
+		/*  6 */ "a......c...a"
+		/*  7 */ "a......c...a"
+		/*  8 */ "a......c...a"
+		/*  9 */ "a......c...a"
+		/* 10 */ "a.....cc...a"
+		/* 11 */ "aaaaacc....a"
+		/* 12 */ "aaaaa......a"
+		/* 13 */ "aaaaa......a"
+		/* 14 */ "aaaaaaaaaaaa"
 
 		// Level 5
-		"aaaaaaaaaaaa"
-		"aaaaa......a"
-		"aaaaa......a"
-		"aaaaacc....a"
-		"a.....cc...a"
-		"a......c...a"
-		"a......c...."
-		"a......c...."
-		"a......c...."
-		"a......c...a"
-		"a.....cc...a"
-		"aaaaacc....a"
-		"aaaaa......a"
-		"aaaaa......a"
-		"aaaaaaaaaaaa"
+		/* z\x*             11 */
+		/*    *   012345678901 */
+		/*  0 */ "aaaaaaaaaaaa"
+		/*  1 */ "aaaa.......a"
+		/*  2 */ "aaaa.......a"
+		/*  3 */ "aaaacc.....a"
+		/*  4 */ "aaaa.......a"
+		/*  5 */ "a..........a"
+		/*  6 */ "a..........a"
+		/*  7 */ "a..........a"
+		/*  8 */ "a..........a"
+		/*  9 */ "a..........a"
+		/* 10 */ "aaaa.......a"
+		/* 11 */ "aaaacc.....a"
+		/* 12 */ "aaaa.......a"
+		/* 13 */ "aaaa.......a"
+		/* 14 */ "aaaaaaaaaaaa"
 
 		// Level 6
-		"aaaaaaaaaaaa"
-		"aaaa.......a"
-		"aaaa.......a"
-		"aaaacc.....a"
-		"aaaa.......a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"aaaa.......a"
-		"aaaacc.....a"
-		"aaaa.......a"
-		"aaaa.......a"
-		"aaaaaaaaaaaa"
+		/* z\x*             11 */
+		/*    *   012345678901 */
+		/*  0 */ "aaaaaaaaaaaa"
+		/*  1 */ "a..........a"
+		/*  2 */ "a..........a"
+		/*  3 */ "a..cc......a"
+		/*  4 */ "aaaa.......a"
+		/*  5 */ "aaaa.......a"
+		/*  6 */ "a..........a"
+		/*  7 */ "a..........a"
+		/*  8 */ "a..........a"
+		/*  9 */ "aaaa.......a"
+		/* 10 */ "aaaa.......a"
+		/* 11 */ "a..cc......a"
+		/* 12 */ "a..........a"
+		/* 13 */ "a..........a"
+		/* 14 */ "aaaaaaaaaaaa"
 
 		// Level 7
-		"aaaaaaaaaaaa"
-		"a..........a"
-		"a..........a"
-		"a..cc......a"
-		"aaaa.......a"
-		"aaaa.......a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"aaaa.......a"
-		"aaaa.......a"
-		"a..cc......a"
-		"a..........a"
-		"a..........a"
-		"aaaaaaaaaaaa"
+		/* z\x*             11 */
+		/*    *   012345678901 */
+		/*  0 */ "aaaaaaaaaaaa"
+		/*  1 */ "a..........a"
+		/*  2 */ "a..........a"
+		/*  3 */ "a..c.......a"
+		/*  4 */ "a..c.......a"
+		/*  5 */ "aaaa.......a"
+		/*  6 */ "aaaa.......a"
+		/*  7 */ "a..........a"
+		/*  8 */ "aaaa.......a"
+		/*  9 */ "aaaa.......a"
+		/* 10 */ "a..c.......a"
+		/* 11 */ "a..c.......a"
+		/* 12 */ "a..........a"
+		/* 13 */ "a..........a"
+		/* 14 */ "aaaaaaaaaaaa"
 
 		// Level 8
-		"aaaaaaaaaaaa"
-		"a..........a"
-		"a..........a"
-		"a..c.......a"
-		"a..c.......a"
-		"aaaa.......a"
-		"aaaa.......a"
-		"a..........a"
-		"aaaa.......a"
-		"aaaa.......a"
-		"a..c.......a"
-		"a..c.......a"
-		"a..........a"
-		"a..........a"
-		"aaaaaaaaaaaa"
+		/* z\x*             11 */
+		/*    *   012345678901 */
+		/*  0 */ "aaaaaaaaaaaa"
+		/*  1 */ "a..........a"
+		/*  2 */ "a..........a"
+		/*  3 */ "a..........a"
+		/*  4 */ "a..c.......a"
+		/*  5 */ "a..c.......a"
+		/*  6 */ "aaaa.......a"
+		/*  7 */ "aaaa.......a"
+		/*  8 */ "aaaa.......a"
+		/*  9 */ "a..c.......a"
+		/* 10 */ "a..c.......a"
+		/* 11 */ "a..........a"
+		/* 12 */ "a..........a"
+		/* 13 */ "a..........a"
+		/* 14 */ "aaaaaaaaaaaa"
 
 		// Level 9
-		"aaaaaaaaaaaa"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"a..c.......a"
-		"a..c.......a"
-		"aaaa.......a"
-		"aaaa.......a"
-		"aaaa.......a"
-		"a..c.......a"
-		"a..c.......a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"aaaaaaaaaaaa"
+		/* z\x*             11 */
+		/*    *   012345678901 */
+		/*  0 */ "aaaaaaaaaaaa"
+		/*  1 */ "a..........a"
+		/*  2 */ "a..........a"
+		/*  3 */ "a..........a"
+		/*  4 */ "a..........a"
+		/*  5 */ "a..c.......a"
+		/*  6 */ "...c.......a"
+		/*  7 */ "...c.......a"
+		/*  8 */ "...c.......a"
+		/*  9 */ "a..c.......a"
+		/* 10 */ "a..........a"
+		/* 11 */ "a..........a"
+		/* 12 */ "a..........a"
+		/* 13 */ "a..........a"
+		/* 14 */ "aaaaaaaaaaaa"
 
 		// Level 10
-		"aaaaaaaaaaaa"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"a..c.......a"
-		"...c.......a"
-		"...c.......a"
-		"...c.......a"
-		"a..c.......a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"aaaaaaaaaaaa"
+		/* z\x*             11 */
+		/*    *   012345678901 */
+		/*  0 */ "aaaaaaaaaaaa"
+		/*  1 */ "a..........a"
+		/*  2 */ "a..........a"
+		/*  3 */ "a..........a"
+		/*  4 */ "a..........a"
+		/*  5 */ "a..........a"
+		/*  6 */ "...........a"
+		/*  7 */ "...........a"
+		/*  8 */ "...........a"
+		/*  9 */ "a..........a"
+		/* 10 */ "a..........a"
+		/* 11 */ "a..........a"
+		/* 12 */ "a..........a"
+		/* 13 */ "a..........a"
+		/* 14 */ "aaaaaaaaaaaa"
 
 		// Level 11
-		"aaaaaaaaaaaa"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"...........a"
-		"...........a"
-		"...........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"aaaaaaaaaaaa"
+		/* z\x*             11 */
+		/*    *   012345678901 */
+		/*  0 */ "aaaaaaaaaaaa"
+		/*  1 */ "a..........a"
+		/*  2 */ "a..........a"
+		/*  3 */ "a..........a"
+		/*  4 */ "a..........a"
+		/*  5 */ "a..........a"
+		/*  6 */ "...........a"
+		/*  7 */ "...........a"
+		/*  8 */ "...........a"
+		/*  9 */ "a..........a"
+		/* 10 */ "a..........a"
+		/* 11 */ "a..........a"
+		/* 12 */ "a..........a"
+		/* 13 */ "a..........a"
+		/* 14 */ "aaaaaaaaaaaa"
 
 		// Level 12
-		"aaaaaaaaaaaa"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"...........a"
-		"...........a"
-		"...........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"aaaaaaaaaaaa"
+		/* z\x*             11 */
+		/*    *   012345678901 */
+		/*  0 */ "aaaaaaaaaaaa"
+		/*  1 */ "a..........a"
+		/*  2 */ "a..........a"
+		/*  3 */ "a..........a"
+		/*  4 */ "a..........a"
+		/*  5 */ "a..........a"
+		/*  6 */ "a..........a"
+		/*  7 */ "a..........a"
+		/*  8 */ "a..........a"
+		/*  9 */ "a..........a"
+		/* 10 */ "a..........a"
+		/* 11 */ "a..........a"
+		/* 12 */ "a..........a"
+		/* 13 */ "a..........a"
+		/* 14 */ "aaaaaaaaaaaa"
 
 		// Level 13
-		"aaaaaaaaaaaa"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"...........a"
-		"...........a"
-		"...........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"a..........a"
-		"aaaaaaaaaaaa"
+		/* z\x*             11 */
+		/*    *   012345678901 */
+		/*  0 */ "aaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaa"
+		/*  5 */ "aaaaaaaaaaaa"
+		/*  6 */ "aaaaaaaaaaaa"
+		/*  7 */ "aaaaaaaaaaaa"
+		/*  8 */ "aaaaaaaaaaaa"
+		/*  9 */ "aaaaaaaaaaaa"
+		/* 10 */ "aaaaaaaaaaaa"
+		/* 11 */ "aaaaaaaaaaaa"
+		/* 12 */ "aaaaaaaaaaaa"
+		/* 13 */ "aaaaaaaaaaaa"
+		/* 14 */ "aaaaaaaaaaaa"
 
 		// Level 14
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-		"aaaaaaaaaaaa"
-
-		// Level 15
-		"aaaaaaaaaaaa"
-		"abbbbbbbbbba"
-		"abbbbbbbbbba"
-		"abbbbbbbbbba"
-		"abbbbbbbbbba"
-		"abbbbbbbbbba"
-		"abbbbbbbbbba"
-		"abbbbbbbbbba"
-		"abbbbbbbbbba"
-		"abbbbbbbbbba"
-		"abbbbbbbbbba"
-		"abbbbbbbbbba"
-		"abbbbbbbbbba"
-		"abbbbbbbbbba"
-		"aaaaaaaaaaaa",
-		
-		// Connections:
-		"1:  0, 9,  7: 4\n"  /* Type 1, BLOCK_FACE_XM */
-		"1: 11, 1,  7: 5\n"  /* Type 1, BLOCK_FACE_XP */,
+		/* z\x*             11 */
+		/*    *   012345678901 */
+		/*  0 */ "aaaaaaaaaaaa"
+		/*  1 */ "abbbbbbbbbba"
+		/*  2 */ "abbbbbbbbbba"
+		/*  3 */ "abbbbbbbbbba"
+		/*  4 */ "abbbbbbbbbba"
+		/*  5 */ "abbbbbbbbbba"
+		/*  6 */ "abbbbbbbbbba"
+		/*  7 */ "abbbbbbbbbba"
+		/*  8 */ "abbbbbbbbbba"
+		/*  9 */ "abbbbbbbbbba"
+		/* 10 */ "abbbbbbbbbba"
+		/* 11 */ "abbbbbbbbbba"
+		/* 12 */ "abbbbbbbbbba"
+		/* 13 */ "abbbbbbbbbba"
+		/* 14 */ "aaaaaaaaaaaa",
+
+		// Connectors:
+		"1: 11, 1, 7: 5\n"  /* Type 1, direction X+ */
+		"1: 0, 9, 7: 4\n"  /* Type 1, direction X- */,
 
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		10,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		-1000,
 	},  // LavaStaircaseBig
 
 
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+	// LavaStairsBridge:
+	// The data has been exported from the gallery Nether, area index 30, ID 281, created by STR_Warrior
+	{
+		// Size:
+		16, 12, 15,  // SizeX = 16, SizeY = 12, SizeZ = 15
+
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		15, 11, 14,  // MaxX, MaxY, MaxZ
+
+		// Block definitions:
+		".:  0: 0\n"  /* air */
+		"a:112: 0\n"  /* netherbrick */
+		"b:113: 0\n"  /* netherbrickfence */
+		"c: 10: 0\n"  /* lava */
+		"d:114: 2\n"  /* netherbrickstairs */
+		"e:114: 3\n"  /* netherbrickstairs */
+		"f:114: 7\n"  /* netherbrickstairs */
+		"g: 44:14\n"  /* step */
+		"h:114: 6\n"  /* netherbrickstairs */
+		"i: 44: 6\n"  /* step */
+		"j:114: 0\n"  /* netherbrickstairs */
+		"m: 19: 0\n"  /* sponge */,
+
+		// Block data:
+		// Level 0
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "aaaaaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaaaaa"
+		/*  5 */ "aaaaaaaaaaaaaaaa"
+		/*  6 */ "aaaaaaaaaaaaaaaa"
+		/*  7 */ "aaaaaaaaaaaaaaaa"
+		/*  8 */ "aaaaaaaaaaaaaaaa"
+		/*  9 */ "aaaaaaaaaaaaaaaa"
+		/* 10 */ "aaaaaaaaaaaaaaaa"
+		/* 11 */ "aaaaaaaaaaaaaaaa"
+		/* 12 */ "aaaaaaaaaaaaaaaa"
+		/* 13 */ "aaaaaaaaaaaaaaaa"
+		/* 14 */ "aaaaaaaaaaaaaaaa"
+
+		// Level 1
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "aaaaaaaa...aaaaa"
+		/*  1 */ "aaaaa..........a"
+		/*  2 */ "aaaaa..........a"
+		/*  3 */ "aaaaab.........a"
+		/*  4 */ "accca...ddd.aaaa"
+		/*  5 */ "accca...aaa.acca"
+		/*  6 */ "acccaaaaaaaaacca"
+		/*  7 */ "acccccccccccccca"
+		/*  8 */ "acccaaaaaaaaacca"
+		/*  9 */ "accca...aaa.acca"
+		/* 10 */ "accca...eee.aaaa"
+		/* 11 */ "aaaaab.........a"
+		/* 12 */ "aaaaa..........a"
+		/* 13 */ "aaaaa..........a"
+		/* 14 */ "aaaaaaaa...aaaaa"
+
+		// Level 2
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "aaaaaaaa...aaaaa"
+		/*  1 */ "aaaa...........a"
+		/*  2 */ "aaaa...........a"
+		/*  3 */ "aaaabb.........a"
+		/*  4 */ "aaaa........b..a"
+		/*  5 */ "a.......ddd....a"
+		/*  6 */ "a.......fff....a"
+		/*  7 */ "a.......ggg....a"
+		/*  8 */ "a.......hhh....a"
+		/*  9 */ "a.......eee....a"
+		/* 10 */ "aaaa........b..a"
+		/* 11 */ "aaaabb.........a"
+		/* 12 */ "aaaa...........a"
+		/* 13 */ "aaaa...........a"
+		/* 14 */ "aaaaaaaa...aaaaa"
+
+		// Level 3
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "aaaaaaaa...aaaaa"
+		/*  1 */ "a..............a"
+		/*  2 */ "a..............a"
+		/*  3 */ "a..bb..........a"
+		/*  4 */ "aaaa........b..a"
+		/*  5 */ "aaaa...........a"
+		/*  6 */ "a..............a"
+		/*  7 */ "a..............a"
+		/*  8 */ "a..............a"
+		/*  9 */ "aaaa...........a"
+		/* 10 */ "aaaa........b..a"
+		/* 11 */ "a..bb..........a"
+		/* 12 */ "a..............a"
+		/* 13 */ "a..............a"
+		/* 14 */ "aaaaaaaa...aaaaa"
+
+		// Level 4
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "aaaaaaaabbbaaaaa"
+		/*  1 */ "a..............a"
+		/*  2 */ "a..............a"
+		/*  3 */ "a..b...........a"
+		/*  4 */ "a..b........b..a"
+		/*  5 */ "aaaa...........a"
+		/*  6 */ "aaaa...........a"
+		/*  7 */ "a..............a"
+		/*  8 */ "aaaa...........a"
+		/*  9 */ "aaaa...........a"
+		/* 10 */ "a..b........b..a"
+		/* 11 */ "a..b...........a"
+		/* 12 */ "a..............a"
+		/* 13 */ "a..............a"
+		/* 14 */ "aaaaaaaabbbaaaaa"
+
+		// Level 5
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "aaaaaaaaaaaaaaaa"
+		/*  1 */ "a..............a"
+		/*  2 */ "a..............a"
+		/*  3 */ "a...........ggga"
+		/*  4 */ "a..b........iija"
+		/*  5 */ "a..b........iija"
+		/*  6 */ "aaaa........iija"
+		/*  7 */ "aaaa........iija"
+		/*  8 */ "aaaa........iija"
+		/*  9 */ "a..b........iija"
+		/* 10 */ "a..b........iija"
+		/* 11 */ "a...........ggga"
+		/* 12 */ "a..............a"
+		/* 13 */ "a..............a"
+		/* 14 */ "aaaaaaaaaaaaaaaa"
+
+		// Level 6
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "aaaaaaaaaaaaaaaa"
+		/*  1 */ "a.............ga"
+		/*  2 */ "a............iia"
+		/*  3 */ "a..............a"
+		/*  4 */ "a..............a"
+		/*  5 */ "a..b...........a"
+		/*  6 */ "...b...........a"
+		/*  7 */ "...b...........a"
+		/*  8 */ "...b...........a"
+		/*  9 */ "a..b...........a"
+		/* 10 */ "a..............a"
+		/* 11 */ "a..............a"
+		/* 12 */ "a............iia"
+		/* 13 */ "a.............ga"
+		/* 14 */ "aaaaaaaaaaaaaaaa"
+
+		// Level 7
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "aaaaaaaaaaaaaaaa"
+		/*  1 */ "a..............a"
+		/*  2 */ "a..............a"
+		/*  3 */ "a..............a"
+		/*  4 */ "a..............a"
+		/*  5 */ "a..............a"
+		/*  6 */ "...............a"
+		/*  7 */ "...............a"
+		/*  8 */ "...............a"
+		/*  9 */ "a..............a"
+		/* 10 */ "a..............a"
+		/* 11 */ "a..............a"
+		/* 12 */ "a..............a"
+		/* 13 */ "a..............a"
+		/* 14 */ "aaaaaaaaaaaaaaaa"
+
+		// Level 8
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "aaaaaaaaaaaaaaaa"
+		/*  1 */ "a..............a"
+		/*  2 */ "a..............a"
+		/*  3 */ "a..............a"
+		/*  4 */ "a..............a"
+		/*  5 */ "a..............a"
+		/*  6 */ "...............a"
+		/*  7 */ "...............a"
+		/*  8 */ "...............a"
+		/*  9 */ "a..............a"
+		/* 10 */ "a..............a"
+		/* 11 */ "a..............a"
+		/* 12 */ "a..............a"
+		/* 13 */ "a..............a"
+		/* 14 */ "aaaaaaaaaaaaaaaa"
+
+		// Level 9
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "aaaaaaaaaaaaaaaa"
+		/*  1 */ "a..............a"
+		/*  2 */ "a..............a"
+		/*  3 */ "a..............a"
+		/*  4 */ "a..............a"
+		/*  5 */ "a..............a"
+		/*  6 */ "a..............a"
+		/*  7 */ "a..............a"
+		/*  8 */ "a..............a"
+		/*  9 */ "a..............a"
+		/* 10 */ "a..............a"
+		/* 11 */ "a..............a"
+		/* 12 */ "a..............a"
+		/* 13 */ "a..............a"
+		/* 14 */ "aaaaaaaaaaaaaaaa"
+
+		// Level 10
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "aaaaaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaaaaa"
+		/*  5 */ "aaaaaaaaaaaaaaaa"
+		/*  6 */ "aaaaaaaaaaaaaaaa"
+		/*  7 */ "aaaaaaaaaaaaaaaa"
+		/*  8 */ "aaaaaaaaaaaaaaaa"
+		/*  9 */ "aaaaaaaaaaaaaaaa"
+		/* 10 */ "aaaaaaaaaaaaaaaa"
+		/* 11 */ "aaaaaaaaaaaaaaaa"
+		/* 12 */ "aaaaaaaaaaaaaaaa"
+		/* 13 */ "aaaaaaaaaaaaaaaa"
+		/* 14 */ "aaaaaaaaaaaaaaaa"
+
+		// Level 11
+		/* z\x*             111111 */
+		/*    *   0123456789012345 */
+		/*  0 */ "abbaabbaabbaabba"
+		/*  1 */ "b..............b"
+		/*  2 */ "a..............a"
+		/*  3 */ "b..............b"
+		/*  4 */ "a..............a"
+		/*  5 */ "b..............b"
+		/*  6 */ "a..............a"
+		/*  7 */ "b..............b"
+		/*  8 */ "a..............a"
+		/*  9 */ "b..............b"
+		/* 10 */ "a..............a"
+		/* 11 */ "b..............b"
+		/* 12 */ "a..............a"
+		/* 13 */ "b..............b"
+		/* 14 */ "abbaabbaabbaabba",
+
+		// Connectors:
+		"",
+
+		// AllowedRotations:
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
+		// Merge strategy:
+		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		10,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		0,
+	},  // LavaStairsBridge
+
+
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// MidStaircase:
-	// The data has been exported from gallery Nether, area index 23, ID 165
+	// The data has been exported from the gallery Nether, area index 23, ID 165, created by Aloe_vera
 	{
 		// Size:
 		13, 8, 13,  // SizeX = 13, SizeY = 8, SizeZ = 13
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		12, 7, 12,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
 		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
@@ -1957,148 +4044,182 @@ const cPrefab::sDef g_NetherFortPrefabs1[] =
 		"f:114: 1\n"  /* netherbrickstairs */
 		"g:114: 2\n"  /* netherbrickstairs */
 		"h: 10: 0\n"  /* lava */
-		"i:113: 0\n"  /* netherbrickfence */,
+		"i:113: 0\n"  /* netherbrickfence */
+		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaa"
+		/*  3 */ "aaaabbbbbaaaa"
+		/*  4 */ "aaaabbbbbaaaa"
+		/*  5 */ "aaaaaaaaaaaaa"
+		/*  6 */ "aaaaaaaaaaaaa"
+		/*  7 */ "aaaaaaaaaaaaa"
+		/*  8 */ "aaaabbbbbaaaa"
+		/*  9 */ "aaaabbbbbaaaa"
+		/* 10 */ "aaaaaaaaaaaaa"
+		/* 11 */ "aaaaaaaaaaaaa"
+		/* 12 */ "aaaaaaaaaaaaa"
+
 		// Level 1
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaabbbbbaaaa"
-		"aaaabbbbbaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaabbbbbaaaa"
-		"aaaabbbbbaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaa"
+		/*  3 */ "aaaacccccaaaa"
+		/*  4 */ "addecccccfdda"
+		/*  5 */ "...eaaaaad..."
+		/*  6 */ "...eaaaaa...."
+		/*  7 */ "...eaaaaag..."
+		/*  8 */ "agggcccccfgga"
+		/*  9 */ "aaaacccccaaaa"
+		/* 10 */ "aaaaaaaaaaaaa"
+		/* 11 */ "aaaaaaaaaaaaa"
+		/* 12 */ "aaaaaaaaaaaaa"
 
 		// Level 2
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaacccccaaaa"
-		"addecccccfdda"
-		"...eaaaaad..."
-		"...eaaaaa...."
-		"...eaaaaag..."
-		"agggcccccfgga"
-		"aaaacccccaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaaaaaaaaaaa"
+		/*  1 */ "aha.......aha"
+		/*  2 */ "aaa.......aaa"
+		/*  3 */ "a...........a"
+		/*  4 */ "a...........a"
+		/*  5 */ "....eaaaa...."
+		/*  6 */ "....eaaaa...."
+		/*  7 */ "....eaaaa...."
+		/*  8 */ "a...........a"
+		/*  9 */ "a...........a"
+		/* 10 */ "aaa.......aaa"
+		/* 11 */ "aha.......aha"
+		/* 12 */ "aaaaaaaaaaaaa"
 
 		// Level 3
-		"aaaaaaaaaaaaa"
-		"aha.......aha"
-		"aaa.......aaa"
-		"a...........a"
-		"a...........a"
-		"....eaaaa...."
-		"....eaaaa...."
-		"....eaaaa...."
-		"a...........a"
-		"a...........a"
-		"aaa.......aaa"
-		"aha.......aha"
-		"aaaaaaaaaaaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaiiaaaiiaaa"
+		/*  1 */ "a...........a"
+		/*  2 */ "a...........a"
+		/*  3 */ "a...........a"
+		/*  4 */ "a...........a"
+		/*  5 */ ".....eaaa...."
+		/*  6 */ ".....eaaa...."
+		/*  7 */ ".....eaaa...."
+		/*  8 */ "a...........a"
+		/*  9 */ "a...........a"
+		/* 10 */ "a...........a"
+		/* 11 */ "a...........a"
+		/* 12 */ "aaaiiaaaiiaaa"
 
 		// Level 4
-		"aaaiiaaaiiaaa"
-		"a...........a"
-		"a...........a"
-		"a...........a"
-		"a...........a"
-		".....eaaa...."
-		".....eaaa...."
-		".....eaaa...."
-		"a...........a"
-		"a...........a"
-		"a...........a"
-		"a...........a"
-		"aaaiiaaaiiaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaiiaaaiiaaa"
+		/*  1 */ "a...........a"
+		/*  2 */ "a...........a"
+		/*  3 */ "a...........a"
+		/*  4 */ "a...........a"
+		/*  5 */ "......eaa...."
+		/*  6 */ "......eaa...."
+		/*  7 */ "......eaa...."
+		/*  8 */ "a...........a"
+		/*  9 */ "a...........a"
+		/* 10 */ "a...........a"
+		/* 11 */ "a...........a"
+		/* 12 */ "aaaiiaaaiiaaa"
 
 		// Level 5
-		"aaaiiaaaiiaaa"
-		"a...........a"
-		"a...........a"
-		"a...........a"
-		"a...........a"
-		"......eaa...."
-		"......eaa...."
-		"......eaa...."
-		"a...........a"
-		"a...........a"
-		"a...........a"
-		"a...........a"
-		"aaaiiaaaiiaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaaaaaaaaaaa"
+		/*  1 */ "a...........a"
+		/*  2 */ "a...........a"
+		/*  3 */ "a...........a"
+		/*  4 */ "a...........a"
+		/*  5 */ "a......ea...a"
+		/*  6 */ "a......ea...a"
+		/*  7 */ "a......ea...a"
+		/*  8 */ "a...........a"
+		/*  9 */ "a...........a"
+		/* 10 */ "a...........a"
+		/* 11 */ "a...........a"
+		/* 12 */ "aaaaaaaaaaaaa"
 
 		// Level 6
-		"aaaaaaaaaaaaa"
-		"a...........a"
-		"a...........a"
-		"a...........a"
-		"a...........a"
-		"a......ea...a"
-		"a......ea...a"
-		"a......ea...a"
-		"a...........a"
-		"a...........a"
-		"a...........a"
-		"a...........a"
-		"aaaaaaaaaaaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaa"
+		/*  5 */ "aaaa....eaaaa"
+		/*  6 */ "aaaa....eaaaa"
+		/*  7 */ "aaaa....eaaaa"
+		/*  8 */ "aaaaaaaaaaaaa"
+		/*  9 */ "aaaaaaaaaaaaa"
+		/* 10 */ "aaaaaaaaaaaaa"
+		/* 11 */ "aaaaaaaaaaaaa"
+		/* 12 */ "aaaaaaaaaaaaa"
 
 		// Level 7
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaa....eaaaa"
-		"aaaa....eaaaa"
-		"aaaa....eaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-
-		// Level 8
-		"iaiaiaiaiaiai"
-		"a...........a"
-		"i...........i"
-		"a...........a"
-		"i...........i"
-		"a............"
-		"i............"
-		"a............"
-		"i...........i"
-		"a...........a"
-		"i...........i"
-		"a...........a"
-		"iaiaiaiaiaiai",
-
-		// Connections:
-		"1:  0, 1, 6: 4\n"  /* Type 1, BLOCK_FACE_XM */
-		"1: 12, 1, 6: 5\n"  /* Type 1, BLOCK_FACE_XP */
-		"1: 12, 7, 6: 5\n"  /* Type 1, BLOCK_FACE_XP */,
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "iaiaiaiaiaiai"
+		/*  1 */ "a...........a"
+		/*  2 */ "i...........i"
+		/*  3 */ "a...........a"
+		/*  4 */ "i...........i"
+		/*  5 */ "a...........a"
+		/*  6 */ "i...........i"
+		/*  7 */ "a...........a"
+		/*  8 */ "i...........i"
+		/*  9 */ "a...........a"
+		/* 10 */ "i...........i"
+		/* 11 */ "a...........a"
+		/* 12 */ "iaiaiaiaiaiai",
+
+		// Connectors:
+		"1: 12, 1, 6: 5\n"  /* Type 1, direction X+ */
+		"1: 0, 1, 6: 4\n"  /* Type 1, direction X- */,
 
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		100,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		-1000,
 	},  // MidStaircase
 
 
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// StairsToOpen1:
-	// The data has been exported from gallery Nether, area index 27, ID 277
+	// The data has been exported from the gallery Nether, area index 27, ID 277, created by Aloe_vera
 	{
 		// Size:
 		7, 10, 7,  // SizeX = 7, SizeY = 10, SizeZ = 7
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		6, 19, 6,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
 		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
@@ -2106,114 +4227,142 @@ const cPrefab::sDef g_NetherFortPrefabs1[] =
 		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*   0123456 */
+		/*  0 */ "aaaaaaa"
+		/*  1 */ "aaaaaaa"
+		/*  2 */ "aaaaaaa"
+		/*  3 */ "aaaaaaa"
+		/*  4 */ "aaaaaaa"
+		/*  5 */ "aaaaaaa"
+		/*  6 */ "aaaaaaa"
+
 		// Level 1
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
+		/* z\x*   0123456 */
+		/*  0 */ "aa...aa"
+		/*  1 */ "a.....a"
+		/*  2 */ "a.....a"
+		/*  3 */ "a.....a"
+		/*  4 */ "a.....a"
+		/*  5 */ "aaaaaaa"
+		/*  6 */ "aaaaaaa"
 
 		// Level 2
-		"aa...aa"
-		"a.....a"
-		"a.....a"
-		"a.....a"
-		"a.....a"
-		"aaaaaaa"
-		"aaaaaaa"
+		/* z\x*   0123456 */
+		/*  0 */ "aa...aa"
+		/*  1 */ "a.....a"
+		/*  2 */ "b.....b"
+		/*  3 */ "a.....a"
+		/*  4 */ "b.....b"
+		/*  5 */ "a.aaaaa"
+		/*  6 */ "aabaaba"
 
 		// Level 3
-		"aa...aa"
-		"a.....a"
-		"b.....b"
-		"a.....a"
-		"b.....b"
-		"a.aaaaa"
-		"aabaaba"
+		/* z\x*   0123456 */
+		/*  0 */ "aa...aa"
+		/*  1 */ "a.....a"
+		/*  2 */ "b.....b"
+		/*  3 */ "a.....a"
+		/*  4 */ "b.....b"
+		/*  5 */ "a..aaaa"
+		/*  6 */ "aabaaba"
 
 		// Level 4
-		"aa...aa"
-		"a.....a"
-		"b.....b"
-		"a.....a"
-		"b.....b"
-		"a..aaaa"
-		"aabaaba"
+		/* z\x*   0123456 */
+		/*  0 */ "aabbbaa"
+		/*  1 */ "a.....a"
+		/*  2 */ "b.....b"
+		/*  3 */ "a.....a"
+		/*  4 */ "b.....b"
+		/*  5 */ "a...aaa"
+		/*  6 */ "aabaaba"
 
 		// Level 5
-		"aabbbaa"
-		"a.....a"
-		"b.....b"
-		"a.....a"
-		"b.....b"
-		"a...aaa"
-		"aabaaba"
+		/* z\x*   0123456 */
+		/*  0 */ "aaaaaaa"
+		/*  1 */ "a.....a"
+		/*  2 */ "a.....a"
+		/*  3 */ "a.....a"
+		/*  4 */ "a.....a"
+		/*  5 */ "a....aa"
+		/*  6 */ "aaaaaaa"
 
 		// Level 6
-		"aaaaaaa"
-		"a.....a"
-		"a.....a"
-		"a.....a"
-		"a.....a"
-		"a....aa"
-		"aaaaaaa"
+		/* z\x*   0123456 */
+		/*  0 */ "aaaaaaa"
+		/*  1 */ "aaaaaaa"
+		/*  2 */ "aaaaaaa"
+		/*  3 */ "aaaaaaa"
+		/*  4 */ "aaaaaaa"
+		/*  5 */ "a.....a"
+		/*  6 */ "aaaaaaa"
 
 		// Level 7
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
-		"a.....a"
-		"aaaaaaa"
+		/* z\x*   0123456 */
+		/*  0 */ "aaaaaaa"
+		/*  1 */ "a.....a"
+		/*  2 */ "a......"
+		/*  3 */ "a......"
+		/*  4 */ "a......"
+		/*  5 */ "a.....a"
+		/*  6 */ "aaaaaaa"
 
 		// Level 8
-		"aaaaaaa"
-		"a.....a"
-		"a......"
-		"a......"
-		"a......"
-		"a.....a"
-		"aaaaaaa"
+		/* z\x*   0123456 */
+		/*  0 */ "mmmmmmm"
+		/*  1 */ "m.....m"
+		/*  2 */ "m......"
+		/*  3 */ "m......"
+		/*  4 */ "m......"
+		/*  5 */ "m.....m"
+		/*  6 */ "mmmmmmm"
 
 		// Level 9
-		"mmmmmmm"
-		"m.....m"
-		"m......"
-		"m......"
-		"m......"
-		"m.....m"
-		"mmmmmmm"
-
-		// Level 10
-		"mmmmmmm"
-		"m.....m"
-		"m......"
-		"m......"
-		"m......"
-		"m.....m"
-		"mmmmmmm",
-		
-		// Connections:
-		"0: 3, 1, 0: 2\n"  /* Type 0, BLOCK_FACE_ZM */
-		"0: 6, 7, 3: 5\n"  /* Type 0, BLOCK_FACE_XP */,
+		/* z\x*   0123456 */
+		/*  0 */ "mmmmmmm"
+		/*  1 */ "m.....m"
+		/*  2 */ "m......"
+		/*  3 */ "m......"
+		/*  4 */ "m......"
+		/*  5 */ "m.....m"
+		/*  6 */ "mmmmmmm",
+
+		// Connectors:
+		"0: 6, 7, 3: 5\n"  /* Type 0, direction X+ */
+		"0: 3, 1, 0: 2\n"  /* Type 0, direction Z- */,
 
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		100,
+
+		// DepthWeight:
+		"1:0|3:0|5:0|7:0|9:0|11:0|13:0|15:0",
+
+		// AddWeightIfSame:
+		0,
 	},  // StairsToOpen1
 
 
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// StairsToOpen2:
-	// The data has been exported from gallery Nether, area index 8, ID 35
+	// The data has been exported from the gallery Nether, area index 8, ID 35, created by xoft
 	{
 		// Size:
 		7, 10, 7,  // SizeX = 7, SizeY = 10, SizeZ = 7
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		6, 19, 6,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
 		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
@@ -2221,114 +4370,142 @@ const cPrefab::sDef g_NetherFortPrefabs1[] =
 		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*   0123456 */
+		/*  0 */ "aaaaaaa"
+		/*  1 */ "aaaaaaa"
+		/*  2 */ "aaaaaaa"
+		/*  3 */ "aaaaaaa"
+		/*  4 */ "aaaaaaa"
+		/*  5 */ "aaaaaaa"
+		/*  6 */ "aaaaaaa"
+
 		// Level 1
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
+		/* z\x*   0123456 */
+		/*  0 */ "aa...aa"
+		/*  1 */ "a.....a"
+		/*  2 */ "a.....a"
+		/*  3 */ "a.....a"
+		/*  4 */ "a.....a"
+		/*  5 */ "aaaaaaa"
+		/*  6 */ "aaaaaaa"
 
 		// Level 2
-		"aa...aa"
-		"a.....a"
-		"a.....a"
-		"a.....a"
-		"a.....a"
-		"aaaaaaa"
-		"aaaaaaa"
+		/* z\x*   0123456 */
+		/*  0 */ "aa...aa"
+		/*  1 */ "a.....a"
+		/*  2 */ "b.....b"
+		/*  3 */ "a.....a"
+		/*  4 */ "b.....b"
+		/*  5 */ "a.aaaaa"
+		/*  6 */ "aabaaba"
 
 		// Level 3
-		"aa...aa"
-		"a.....a"
-		"b.....b"
-		"a.....a"
-		"b.....b"
-		"a.aaaaa"
-		"aabaaba"
+		/* z\x*   0123456 */
+		/*  0 */ "aa...aa"
+		/*  1 */ "a.....a"
+		/*  2 */ "b.....b"
+		/*  3 */ "a.....a"
+		/*  4 */ "b.....b"
+		/*  5 */ "a..aaaa"
+		/*  6 */ "aabaaba"
 
 		// Level 4
-		"aa...aa"
-		"a.....a"
-		"b.....b"
-		"a.....a"
-		"b.....b"
-		"a..aaaa"
-		"aabaaba"
+		/* z\x*   0123456 */
+		/*  0 */ "aabbbaa"
+		/*  1 */ "a.....a"
+		/*  2 */ "b.....b"
+		/*  3 */ "a.....a"
+		/*  4 */ "b.....b"
+		/*  5 */ "a...aaa"
+		/*  6 */ "aabaaba"
 
 		// Level 5
-		"aabbbaa"
-		"a.....a"
-		"b.....b"
-		"a.....a"
-		"b.....b"
-		"a...aaa"
-		"aabaaba"
+		/* z\x*   0123456 */
+		/*  0 */ "aaaaaaa"
+		/*  1 */ "a.....a"
+		/*  2 */ "a.....a"
+		/*  3 */ "a.....a"
+		/*  4 */ "a.....a"
+		/*  5 */ "a....aa"
+		/*  6 */ "aaaaaaa"
 
 		// Level 6
-		"aaaaaaa"
-		"a.....a"
-		"a.....a"
-		"a.....a"
-		"a.....a"
-		"a....aa"
-		"aaaaaaa"
+		/* z\x*   0123456 */
+		/*  0 */ "aaaaaaa"
+		/*  1 */ "aaaaaaa"
+		/*  2 */ "aaaaaaa"
+		/*  3 */ "aaaaaaa"
+		/*  4 */ "aaaaaaa"
+		/*  5 */ "a.....a"
+		/*  6 */ "aaaaaaa"
 
 		// Level 7
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
-		"a.....a"
-		"aaaaaaa"
+		/* z\x*   0123456 */
+		/*  0 */ "aaaaaaa"
+		/*  1 */ "a.....a"
+		/*  2 */ "......a"
+		/*  3 */ "......a"
+		/*  4 */ "......a"
+		/*  5 */ "a.....a"
+		/*  6 */ "aaaaaaa"
 
 		// Level 8
-		"aaaaaaa"
-		"a.....a"
-		"......a"
-		"......a"
-		"......a"
-		"a.....a"
-		"aaaaaaa"
+		/* z\x*   0123456 */
+		/*  0 */ "mmmmmmm"
+		/*  1 */ "m.....m"
+		/*  2 */ "......m"
+		/*  3 */ "......m"
+		/*  4 */ "......m"
+		/*  5 */ "m.....m"
+		/*  6 */ "mmmmmmm"
 
 		// Level 9
-		"mmmmmmm"
-		"m.....m"
-		"......m"
-		"......m"
-		"......m"
-		"m.....m"
-		"mmmmmmm"
-
-		// Level 10
-		"mmmmmmm"
-		"m.....m"
-		"......m"
-		"......m"
-		"......m"
-		"m.....m"
-		"mmmmmmm",
-		
-		// Connections:
-		"0: 3, 1, 0: 2\n"  /* Type 0, BLOCK_FACE_ZM */
-		"0: 0, 7, 3: 4\n"  /* Type 0, BLOCK_FACE_XM */,
+		/* z\x*   0123456 */
+		/*  0 */ "mmmmmmm"
+		/*  1 */ "m.....m"
+		/*  2 */ "......m"
+		/*  3 */ "......m"
+		/*  4 */ "......m"
+		/*  5 */ "m.....m"
+		/*  6 */ "mmmmmmm",
+
+		// Connectors:
+		"0: 0, 7, 3: 4\n"  /* Type 0, direction X- */
+		"0: 3, 1, 0: 2\n"  /* Type 0, direction Z- */,
 
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		100,
+
+		// DepthWeight:
+		"1:0|3:0|5:0|7:0|9:0|11:0|13:0|15:0",
+
+		// AddWeightIfSame:
+		0,
 	},  // StairsToOpen2
 
 
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// Tee2x4:
-	// The data has been exported from gallery Nether, area index 40, ID 291
+	// The data has been exported from the gallery Nether, area index 40, ID 291, created by Aloe_vera
 	{
 		// Size:
 		13, 6, 7,  // SizeX = 13, SizeY = 6, SizeZ = 7
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		12, 5, 6,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
 		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
@@ -2340,79 +4517,109 @@ const cPrefab::sDef g_NetherFortPrefabs1[] =
 		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmmaaaaammmm"
+		/*  1 */ "mmmmaaaaammmm"
+		/*  2 */ "aaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaa"
+		/*  5 */ "aaaaaaaaaaaaa"
+		/*  6 */ "aaaaaaaaaaaaa"
+
 		// Level 1
-		"mmmmaaaaammmm"
-		"mmmmaaaaammmm"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmma...ammmm"
+		/*  1 */ "mmmma...ammmm"
+		/*  2 */ "aaaaa...aaaaa"
+		/*  3 */ "............."
+		/*  4 */ "............."
+		/*  5 */ "............."
+		/*  6 */ "aaaaaaaaaaaaa"
 
 		// Level 2
-		"mmmma...ammmm"
-		"mmmma...ammmm"
-		"aaaaa...aaaaa"
-		"............."
-		"............."
-		"............."
-		"aaaaaaaaaaaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmma...ammmm"
+		/*  1 */ "mmmmb...bmmmm"
+		/*  2 */ "ababa...ababa"
+		/*  3 */ "............."
+		/*  4 */ "............."
+		/*  5 */ "............."
+		/*  6 */ "ababababababa"
 
 		// Level 3
-		"mmmma...ammmm"
-		"mmmmb...bmmmm"
-		"ababa...ababa"
-		"............."
-		"............."
-		"............."
-		"ababababababa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmma...ammmm"
+		/*  1 */ "mmmmb...bmmmm"
+		/*  2 */ "ababa...ababa"
+		/*  3 */ "............."
+		/*  4 */ "............."
+		/*  5 */ "............."
+		/*  6 */ "ababababababa"
 
 		// Level 4
-		"mmmma...ammmm"
-		"mmmmb...bmmmm"
-		"ababa...ababa"
-		"............."
-		"............."
-		"............."
-		"ababababababa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmma...ammmm"
+		/*  1 */ "mmmmb...bmmmm"
+		/*  2 */ "ababa...ababa"
+		/*  3 */ "............."
+		/*  4 */ "............."
+		/*  5 */ "............."
+		/*  6 */ "ababababababa"
 
 		// Level 5
-		"mmmma...ammmm"
-		"mmmmb...bmmmm"
-		"ababa...ababa"
-		"............."
-		"............."
-		"............."
-		"ababababababa"
-
-		// Level 6
-		"mmmmcaaadmmmm"
-		"mmmmcaaadmmmm"
-		"eeeecaaadeeee"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"fffffffffffff",
-
-		// Connections:
-		"1:  0, 1, 4: 4\n"  /* Type 1, BLOCK_FACE_XM */
-		"1:  6, 1, 0: 2\n"  /* Type 1, BLOCK_FACE_ZM */
-		"1: 12, 1, 4: 5\n"  /* Type 1, BLOCK_FACE_XP */,
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmmcaaadmmmm"
+		/*  1 */ "mmmmcaaadmmmm"
+		/*  2 */ "eeeecaaadeeee"
+		/*  3 */ "aaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaa"
+		/*  5 */ "aaaaaaaaaaaaa"
+		/*  6 */ "fffffffffffff",
+
+		// Connectors:
+		"1: 0, 1, 4: 4\n"  /* Type 1, direction X- */
+		"1: 6, 1, 0: 2\n"  /* Type 1, direction Z- */
+		"1: 12, 1, 4: 5\n"  /* Type 1, direction X+ */,
 
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		100,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		0,
 	},  // Tee2x4
 
 
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// Tee4x4:
-	// The data has been exported from gallery Nether, area index 41, ID 292
+	// The data has been exported from the gallery Nether, area index 41, ID 292, created by Aloe_vera
 	{
 		// Size:
 		13, 6, 9,  // SizeX = 13, SizeY = 6, SizeZ = 9
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		12, 5, 8,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
 		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
@@ -2424,335 +4631,718 @@ const cPrefab::sDef g_NetherFortPrefabs1[] =
 		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmmaaaaammmm"
+		/*  1 */ "mmmmaaaaammmm"
+		/*  2 */ "mmmmaaaaammmm"
+		/*  3 */ "mmmmaaaaammmm"
+		/*  4 */ "aaaaaaaaaaaaa"
+		/*  5 */ "aaaaaaaaaaaaa"
+		/*  6 */ "aaaaaaaaaaaaa"
+		/*  7 */ "aaaaaaaaaaaaa"
+		/*  8 */ "aaaaaaaaaaaaa"
+
 		// Level 1
-		"mmmmaaaaammmm"
-		"mmmmaaaaammmm"
-		"mmmmaaaaammmm"
-		"mmmmaaaaammmm"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmma...ammmm"
+		/*  1 */ "mmmma...ammmm"
+		/*  2 */ "mmmma...ammmm"
+		/*  3 */ "mmmma...ammmm"
+		/*  4 */ "aaaaa...aaaaa"
+		/*  5 */ "............."
+		/*  6 */ "............."
+		/*  7 */ "............."
+		/*  8 */ "aaaaaaaaaaaaa"
 
 		// Level 2
-		"mmmma...ammmm"
-		"mmmma...ammmm"
-		"mmmma...ammmm"
-		"mmmma...ammmm"
-		"aaaaa...aaaaa"
-		"............."
-		"............."
-		"............."
-		"aaaaaaaaaaaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmma...ammmm"
+		/*  1 */ "mmmmb...bmmmm"
+		/*  2 */ "mmmma...ammmm"
+		/*  3 */ "mmmmb...bmmmm"
+		/*  4 */ "ababa...ababa"
+		/*  5 */ "............."
+		/*  6 */ "............."
+		/*  7 */ "............."
+		/*  8 */ "ababababababa"
 
 		// Level 3
-		"mmmma...ammmm"
-		"mmmmb...bmmmm"
-		"mmmma...ammmm"
-		"mmmmb...bmmmm"
-		"ababa...ababa"
-		"............."
-		"............."
-		"............."
-		"ababababababa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmma...ammmm"
+		/*  1 */ "mmmmb...bmmmm"
+		/*  2 */ "mmmma...ammmm"
+		/*  3 */ "mmmmb...bmmmm"
+		/*  4 */ "ababa...ababa"
+		/*  5 */ "............."
+		/*  6 */ "............."
+		/*  7 */ "............."
+		/*  8 */ "ababababababa"
 
 		// Level 4
-		"mmmma...ammmm"
-		"mmmmb...bmmmm"
-		"mmmma...ammmm"
-		"mmmmb...bmmmm"
-		"ababa...ababa"
-		"............."
-		"............."
-		"............."
-		"ababababababa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmma...ammmm"
+		/*  1 */ "mmmmb...bmmmm"
+		/*  2 */ "mmmma...ammmm"
+		/*  3 */ "mmmmb...bmmmm"
+		/*  4 */ "ababa...ababa"
+		/*  5 */ "............."
+		/*  6 */ "............."
+		/*  7 */ "............."
+		/*  8 */ "ababababababa"
 
 		// Level 5
-		"mmmma...ammmm"
-		"mmmmb...bmmmm"
-		"mmmma...ammmm"
-		"mmmmb...bmmmm"
-		"ababa...ababa"
-		"............."
-		"............."
-		"............."
-		"ababababababa"
-
-		// Level 6
-		"mmmmcaaadmmmm"
-		"mmmmcaaadmmmm"
-		"mmmmcaaadmmmm"
-		"mmmmcaaadmmmm"
-		"eeeecaaadeeee"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"fffffffffffff",
-
-		// Connections:
-		"1:  0, 1,  6: 4\n"  /* Type 1, BLOCK_FACE_XM */
-		"1: 12, 1,  6: 5\n"  /* Type 1, BLOCK_FACE_XP */
-		"1:  6, 1,  0: 2\n"  /* Type 1, BLOCK_FACE_ZM */,
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "mmmmcaaadmmmm"
+		/*  1 */ "mmmmcaaadmmmm"
+		/*  2 */ "mmmmcaaadmmmm"
+		/*  3 */ "mmmmcaaadmmmm"
+		/*  4 */ "eeeecaaadeeee"
+		/*  5 */ "aaaaaaaaaaaaa"
+		/*  6 */ "aaaaaaaaaaaaa"
+		/*  7 */ "aaaaaaaaaaaaa"
+		/*  8 */ "fffffffffffff",
+
+		// Connectors:
+		"1: 0, 1, 6: 4\n"  /* Type 1, direction X- */
+		"1: 6, 1, 0: 2\n"  /* Type 1, direction Z- */
+		"1: 12, 1, 6: 5\n"  /* Type 1, direction X+ */,
 
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		100,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		0,
 	},  // Tee4x4
 
+
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+	// TinyCorridorCorner:
+	// The data has been exported from the gallery Nether, area index 66, ID 331, created by xoft
+	{
+		// Size:
+		5, 6, 5,  // SizeX = 5, SizeY = 6, SizeZ = 5
+
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		4, 5, 4,  // MaxX, MaxY, MaxZ
+
+		// Block definitions:
+		".:  0: 0\n"  /* air */
+		"a:112: 0\n"  /* netherbrick */
+		"b:113: 0\n"  /* netherbrickfence */
+		"c:114: 2\n"  /* netherbrickstairs */
+		"d:114: 1\n"  /* netherbrickstairs */
+		"e:114: 0\n"  /* netherbrickstairs */
+		"m: 19: 0\n"  /* sponge */,
+
+		// Block data:
+		// Level 0
+		/* z\x*   01234 */
+		/*  0 */ "aaaaa"
+		/*  1 */ "aaaaa"
+		/*  2 */ "aaaaa"
+		/*  3 */ "aaaaa"
+		/*  4 */ "aaaaa"
+
+		// Level 1
+		/* z\x*   01234 */
+		/*  0 */ "aaaaa"
+		/*  1 */ "....a"
+		/*  2 */ "....a"
+		/*  3 */ "....a"
+		/*  4 */ "a...a"
+
+		// Level 2
+		/* z\x*   01234 */
+		/*  0 */ "ababa"
+		/*  1 */ "....b"
+		/*  2 */ "....a"
+		/*  3 */ "....b"
+		/*  4 */ "a...a"
+
+		// Level 3
+		/* z\x*   01234 */
+		/*  0 */ "ababa"
+		/*  1 */ "....b"
+		/*  2 */ "....a"
+		/*  3 */ "....b"
+		/*  4 */ "a...a"
+
+		// Level 4
+		/* z\x*   01234 */
+		/*  0 */ "ababa"
+		/*  1 */ "....b"
+		/*  2 */ "....a"
+		/*  3 */ "....b"
+		/*  4 */ "a...a"
+
+		// Level 5
+		/* z\x*   01234 */
+		/*  0 */ "ccccc"
+		/*  1 */ "aaaad"
+		/*  2 */ "aaaad"
+		/*  3 */ "aaaad"
+		/*  4 */ "eaaad",
+
+		// Connectors:
+		"1: 2, 1, 4: 3\n"  /* Type 1, direction Z+ */
+		"1: 0, 1, 2: 4\n"  /* Type 1, direction X- */,
+
+		// AllowedRotations:
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
+		// Merge strategy:
+		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		100,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		-50,
+	},  // TinyCorridorCorner
+
+
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+	// TinyCorridorCornerChest:
+	// The data has been exported from the gallery Nether, area index 67, ID 332, created by Aloe_vera
+	{
+		// Size:
+		5, 6, 5,  // SizeX = 5, SizeY = 6, SizeZ = 5
+
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		4, 5, 4,  // MaxX, MaxY, MaxZ
+
+		// Block definitions:
+		".:  0: 0\n"  /* air */
+		"a:112: 0\n"  /* netherbrick */
+		"b: 54: 4\n"  /* chest */
+		"c:113: 0\n"  /* netherbrickfence */
+		"d:114: 2\n"  /* netherbrickstairs */
+		"e:114: 1\n"  /* netherbrickstairs */
+		"f:114: 0\n"  /* netherbrickstairs */
+		"m: 19: 0\n"  /* sponge */,
+
+		// Block data:
+		// Level 0
+		/* z\x*   01234 */
+		/*  0 */ "aaaaa"
+		/*  1 */ "aaaaa"
+		/*  2 */ "aaaaa"
+		/*  3 */ "aaaaa"
+		/*  4 */ "aaaaa"
+
+		// Level 1
+		/* z\x*   01234 */
+		/*  0 */ "aaaaa"
+		/*  1 */ "....a"
+		/*  2 */ "...ba"
+		/*  3 */ "....a"
+		/*  4 */ "a...a"
+
+		// Level 2
+		/* z\x*   01234 */
+		/*  0 */ "acaca"
+		/*  1 */ "....c"
+		/*  2 */ "....a"
+		/*  3 */ "....c"
+		/*  4 */ "a...a"
+
+		// Level 3
+		/* z\x*   01234 */
+		/*  0 */ "acaca"
+		/*  1 */ "....c"
+		/*  2 */ "....a"
+		/*  3 */ "....c"
+		/*  4 */ "a...a"
+
+		// Level 4
+		/* z\x*   01234 */
+		/*  0 */ "acaca"
+		/*  1 */ "....c"
+		/*  2 */ "....a"
+		/*  3 */ "....c"
+		/*  4 */ "a...a"
+
+		// Level 5
+		/* z\x*   01234 */
+		/*  0 */ "ddddd"
+		/*  1 */ "aaaae"
+		/*  2 */ "aaaae"
+		/*  3 */ "aaaae"
+		/*  4 */ "faaae",
+
+		// Connectors:
+		"1: 2, 1, 4: 3\n"  /* Type 1, direction Z+ */
+		"1: 0, 1, 2: 4\n"  /* Type 1, direction X- */,
+
+		// AllowedRotations:
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
+		// Merge strategy:
+		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		100,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		0,
+	},  // TinyCorridorCornerChest
+
+
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+	// TinyCorridorCrossing:
+	// The data has been exported from the gallery Nether, area index 64, ID 329, created by xoft
+	{
+		// Size:
+		5, 6, 5,  // SizeX = 5, SizeY = 6, SizeZ = 5
+
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		4, 5, 4,  // MaxX, MaxY, MaxZ
+
+		// Block definitions:
+		".:  0: 0\n"  /* air */
+		"a:112: 0\n"  /* netherbrick */
+		"b:114: 2\n"  /* netherbrickstairs */
+		"c:114: 0\n"  /* netherbrickstairs */
+		"d:114: 1\n"  /* netherbrickstairs */
+		"m: 19: 0\n"  /* sponge */,
+
+		// Block data:
+		// Level 0
+		/* z\x*   01234 */
+		/*  0 */ "aaaaa"
+		/*  1 */ "aaaaa"
+		/*  2 */ "aaaaa"
+		/*  3 */ "aaaaa"
+		/*  4 */ "aaaaa"
+
+		// Level 1
+		/* z\x*   01234 */
+		/*  0 */ "a...a"
+		/*  1 */ "....."
+		/*  2 */ "....."
+		/*  3 */ "....."
+		/*  4 */ "a...a"
+
+		// Level 2
+		/* z\x*   01234 */
+		/*  0 */ "a...a"
+		/*  1 */ "....."
+		/*  2 */ "....."
+		/*  3 */ "....."
+		/*  4 */ "a...a"
+
+		// Level 3
+		/* z\x*   01234 */
+		/*  0 */ "a...a"
+		/*  1 */ "....."
+		/*  2 */ "....."
+		/*  3 */ "....."
+		/*  4 */ "a...a"
+
+		// Level 4
+		/* z\x*   01234 */
+		/*  0 */ "a...a"
+		/*  1 */ "....."
+		/*  2 */ "....."
+		/*  3 */ "....."
+		/*  4 */ "a...a"
+
+		// Level 5
+		/* z\x*   01234 */
+		/*  0 */ "baaab"
+		/*  1 */ "aaaaa"
+		/*  2 */ "aaaaa"
+		/*  3 */ "aaaaa"
+		/*  4 */ "caaad",
+
+		// Connectors:
+		"1: 4, 1, 2: 5\n"  /* Type 1, direction X+ */
+		"1: 2, 1, 4: 3\n"  /* Type 1, direction Z+ */
+		"1: 0, 1, 2: 4\n"  /* Type 1, direction X- */
+		"1: 2, 1, 0: 2\n"  /* Type 1, direction Z- */,
+
+		// AllowedRotations:
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
+		// Merge strategy:
+		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		100,
+
+		// DepthWeight:
+		"1:200|2:400|3:0|4:500",
+
+		// AddWeightIfSame:
+		-50,
+	},  // TinyCorridorCrossing
+
+
+
+	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// Turret:
-	// The data has been exported from gallery Nether, area index 7, ID 34
+	// The data has been exported from the gallery Nether, area index 7, ID 34, created by xoft
 	{
 		// Size:
-		7, 6, 7,  // SizeX = 7, SizeY = 6, SizeZ = 7
+		7, 7, 7,  // SizeX = 7, SizeY = 7, SizeZ = 7
+
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		6, 16, 6,  // MaxX, MaxY, MaxZ
 
 		// Block definitions:
 		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
-		"b:113: 0\n"  /* netherbrickfence */,
+		"b:113: 0\n"  /* netherbrickfence */
+		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*   0123456 */
+		/*  0 */ "aaaaaaa"
+		/*  1 */ "aaaaaaa"
+		/*  2 */ "aaaaaaa"
+		/*  3 */ "aaaaaaa"
+		/*  4 */ "aaaaaaa"
+		/*  5 */ "aaaaaaa"
+		/*  6 */ "aaaaaaa"
+
 		// Level 1
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
-		"aaaaaaa"
+		/* z\x*   0123456 */
+		/*  0 */ "aa...aa"
+		/*  1 */ "a.....a"
+		/*  2 */ "......."
+		/*  3 */ "......."
+		/*  4 */ "......."
+		/*  5 */ "a.....a"
+		/*  6 */ "aa...aa"
 
 		// Level 2
-		"aa...aa"
-		"a.....a"
-		"......."
-		"......."
-		"......."
-		"a.....a"
-		"aa...aa"
+		/* z\x*   0123456 */
+		/*  0 */ "aa...aa"
+		/*  1 */ "a.....a"
+		/*  2 */ "......."
+		/*  3 */ "......."
+		/*  4 */ "......."
+		/*  5 */ "a.....a"
+		/*  6 */ "aa...aa"
 
 		// Level 3
-		"aa...aa"
-		"a.....a"
-		"......."
-		"......."
-		"......."
-		"a.....a"
-		"aa...aa"
+		/* z\x*   0123456 */
+		/*  0 */ "aa...aa"
+		/*  1 */ "a.....a"
+		/*  2 */ "......."
+		/*  3 */ "......."
+		/*  4 */ "......."
+		/*  5 */ "a.....a"
+		/*  6 */ "aa...aa"
 
 		// Level 4
-		"aa...aa"
-		"a.....a"
-		"......."
-		"......."
-		"......."
-		"a.....a"
-		"aa...aa"
+		/* z\x*   0123456 */
+		/*  0 */ "aabbbaa"
+		/*  1 */ "a.....a"
+		/*  2 */ "b.....b"
+		/*  3 */ "b.....b"
+		/*  4 */ "b.....b"
+		/*  5 */ "a.....a"
+		/*  6 */ "aabbbaa"
 
 		// Level 5
-		"aabbbaa"
-		"a.....a"
-		"b.....b"
-		"b.....b"
-		"b.....b"
-		"a.....a"
-		"aabbbaa"
+		/* z\x*   0123456 */
+		/*  0 */ "aaaaaaa"
+		/*  1 */ "a.....a"
+		/*  2 */ "a.....a"
+		/*  3 */ "a.....a"
+		/*  4 */ "a.....a"
+		/*  5 */ "a.....a"
+		/*  6 */ "aaaaaaa"
 
 		// Level 6
-		"aaaaaaa"
-		"a.....a"
-		"a.....a"
-		"a.....a"
-		"a.....a"
-		"a.....a"
-		"aaaaaaa",
-
-		// Connections:
-		"0: 0, 1, 3: 4\n"  /* Type 0, BLOCK_FACE_XM */
-		"0: 3, 1, 0: 2\n"  /* Type 0, BLOCK_FACE_ZM */
-		"0: 6, 1, 3: 5\n"  /* Type 0, BLOCK_FACE_XP */
-		"0: 3, 1, 6: 3\n"  /* Type 0, BLOCK_FACE_ZP */,
+		/* z\x*   0123456 */
+		/*  0 */ "......."
+		/*  1 */ "......."
+		/*  2 */ "......."
+		/*  3 */ "......."
+		/*  4 */ "......."
+		/*  5 */ "......."
+		/*  6 */ ".......",
+
+		// Connectors:
+		"0: 0, 1, 3: 4\n"  /* Type 0, direction X- */
+		"0: 3, 1, 0: 2\n"  /* Type 0, direction Z- */
+		"0: 6, 1, 3: 5\n"  /* Type 0, direction X+ */
+		"0: 3, 1, 6: 3\n"  /* Type 0, direction Z+ */,
 
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
+
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		100,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		-99,
 	},  // Turret
+};  // g_NetherFortPrefabs
 
-} ;  // g_NetherFortPrefabs1
 
 
 
 
 
-const cPrefab::sDef g_NetherFortStartingPrefabs1[] =
+const cPrefab::sDef g_NetherFortStartingPrefabs[] =
 {
 	///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 	// CentralRoom:
-	// The data has been exported from gallery Nether, area index 22, ID 164
+	// The data has been exported from the gallery Nether, area index 22, ID 164, created by Aloe_vera
 	{
 		// Size:
 		13, 9, 13,  // SizeX = 13, SizeY = 9, SizeZ = 13
 
+		// Hitbox (relative to bounding box):
+		0, 0, 0,  // MinX, MinY, MinZ
+		12, 8, 12,  // MaxX, MaxY, MaxZ
+
 		// Block definitions:
+		".:  0: 0\n"  /* air */
 		"a:112: 0\n"  /* netherbrick */
-		"b:  0: 0\n"  /* air */
-		"c: 10: 0\n"  /* lava */
-		"d:113: 0\n"  /* netherbrickfence */,
+		"b: 10: 0\n"  /* lava */
+		"c:113: 0\n"  /* netherbrickfence */
+		"m: 19: 0\n"  /* sponge */,
 
 		// Block data:
+		// Level 0
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaa"
+		/*  5 */ "aaaaaaaaaaaaa"
+		/*  6 */ "aaaaaaaaaaaaa"
+		/*  7 */ "aaaaaaaaaaaaa"
+		/*  8 */ "aaaaaaaaaaaaa"
+		/*  9 */ "aaaaaaaaaaaaa"
+		/* 10 */ "aaaaaaaaaaaaa"
+		/* 11 */ "aaaaaaaaaaaaa"
+		/* 12 */ "aaaaaaaaaaaaa"
+
 		// Level 1
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaaa...aaaaa"
+		/*  1 */ "aaaaa...aaaaa"
+		/*  2 */ "aa.........aa"
+		/*  3 */ "aa.........aa"
+		/*  4 */ "aa.........aa"
+		/*  5 */ "aa...aaa...aa"
+		/*  6 */ "aa...aba...aa"
+		/*  7 */ "aa...aaa...aa"
+		/*  8 */ "aa.........aa"
+		/*  9 */ "aa.........aa"
+		/* 10 */ "aa.........aa"
+		/* 11 */ "aaaaa...aaaaa"
+		/* 12 */ "aaaaa...aaaaa"
 
 		// Level 2
-		"aaaaabbbaaaaa"
-		"aaaaabbbaaaaa"
-		"aabbbbbbbbbaa"
-		"aabbbbbbbbbaa"
-		"aabbbbbbbbbaa"
-		"aabbbaaabbbaa"
-		"aabbbacabbbaa"
-		"aabbbaaabbbaa"
-		"aabbbbbbbbbaa"
-		"aabbbbbbbbbaa"
-		"aabbbbbbbbbaa"
-		"aaaaabbbaaaaa"
-		"aaaaabbbaaaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaaa...aaaaa"
+		/*  1 */ "aaaca...acaaa"
+		/*  2 */ "aa.........aa"
+		/*  3 */ "ac.........ca"
+		/*  4 */ "aa.........aa"
+		/*  5 */ "ac.........ca"
+		/*  6 */ "aa.........aa"
+		/*  7 */ "ac.........ca"
+		/*  8 */ "aa.........aa"
+		/*  9 */ "ac.........ca"
+		/* 10 */ "aa.........aa"
+		/* 11 */ "aaaca...acaaa"
+		/* 12 */ "aaaaa...aaaaa"
 
 		// Level 3
-		"aaaaabbbaaaaa"
-		"aaadabbbadaaa"
-		"aabbbbbbbbbaa"
-		"adbbbbbbbbbda"
-		"aabbbbbbbbbaa"
-		"adbbbbbbbbbda"
-		"aabbbbbbbbbaa"
-		"adbbbbbbbbbda"
-		"aabbbbbbbbbaa"
-		"adbbbbbbbbbda"
-		"aabbbbbbbbbaa"
-		"aaadabbbadaaa"
-		"aaaaabbbaaaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaaa...aaaaa"
+		/*  1 */ "aaaca...acaaa"
+		/*  2 */ "aa.........aa"
+		/*  3 */ "ac.........ca"
+		/*  4 */ "aa.........aa"
+		/*  5 */ "ac.........ca"
+		/*  6 */ "aa.........aa"
+		/*  7 */ "ac.........ca"
+		/*  8 */ "aa.........aa"
+		/*  9 */ "ac.........ca"
+		/* 10 */ "aa.........aa"
+		/* 11 */ "aaaca...acaaa"
+		/* 12 */ "aaaaa...aaaaa"
 
 		// Level 4
-		"aaaaabbbaaaaa"
-		"aaadabbbadaaa"
-		"aabbbbbbbbbaa"
-		"adbbbbbbbbbda"
-		"aabbbbbbbbbaa"
-		"adbbbbbbbbbda"
-		"aabbbbbbbbbaa"
-		"adbbbbbbbbbda"
-		"aabbbbbbbbbaa"
-		"adbbbbbbbbbda"
-		"aabbbbbbbbbaa"
-		"aaadabbbadaaa"
-		"aaaaabbbaaaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "acacacccacaca"
+		/*  1 */ "caaaa...aaaac"
+		/*  2 */ "aa.........aa"
+		/*  3 */ "ca.........ac"
+		/*  4 */ "aa.........aa"
+		/*  5 */ "ca.........ac"
+		/*  6 */ "aa.........aa"
+		/*  7 */ "ca.........ac"
+		/*  8 */ "aa.........aa"
+		/*  9 */ "ca.........ac"
+		/* 10 */ "aa.........aa"
+		/* 11 */ "caaaa...aaaac"
+		/* 12 */ "acaca...acaca"
 
 		// Level 5
-		"adadadddadada"
-		"daaaabbbaaaad"
-		"aabbbbbbbbbaa"
-		"dabbbbbbbbbad"
-		"aabbbbbbbbbaa"
-		"dabbbbbbbbbad"
-		"aabbbbbbbbbaa"
-		"dabbbbbbbbbad"
-		"aabbbbbbbbbaa"
-		"dabbbbbbbbbad"
-		"aabbbbbbbbbaa"
-		"daaaabbbaaaad"
-		"adadabbbadada"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "acacaaaaacaca"
+		/*  1 */ "caaaaaaaaaaac"
+		/*  2 */ "aa.........aa"
+		/*  3 */ "ca.........ac"
+		/*  4 */ "aa.........aa"
+		/*  5 */ "ca.........ac"
+		/*  6 */ "aa.........aa"
+		/*  7 */ "ca.........ac"
+		/*  8 */ "aa.........aa"
+		/*  9 */ "ca.........ac"
+		/* 10 */ "aa.........aa"
+		/* 11 */ "caaaaaaaaaaac"
+		/* 12 */ "acacaaaaacaca"
 
 		// Level 6
-		"adadaaaaadada"
-		"daaaaaaaaaaad"
-		"aabbbbbbbbbaa"
-		"dabbbbbbbbbad"
-		"aabbbbbbbbbaa"
-		"dabbbbbbbbbad"
-		"aabbbbbbbbbaa"
-		"dabbbbbbbbbad"
-		"aabbbbbbbbbaa"
-		"dabbbbbbbbbad"
-		"aabbbbbbbbbaa"
-		"daaaaaaaaaaad"
-		"adadaaaaadada"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaa"
+		/*  5 */ "aaaaaaaaaaaaa"
+		/*  6 */ "aaaaaaaaaaaaa"
+		/*  7 */ "aaaaaaaaaaaaa"
+		/*  8 */ "aaaaaaaaaaaaa"
+		/*  9 */ "aaaaaaaaaaaaa"
+		/* 10 */ "aaaaaaaaaaaaa"
+		/* 11 */ "aaaaaaaaaaaaa"
+		/* 12 */ "aaaaaaaaaaaaa"
 
 		// Level 7
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "aaaaaaaaaaaaa"
+		/*  1 */ "aaaaaaaaaaaaa"
+		/*  2 */ "aaaaaaaaaaaaa"
+		/*  3 */ "aaaaaaaaaaaaa"
+		/*  4 */ "aaaaaaaaaaaaa"
+		/*  5 */ "aaaaaaaaaaaaa"
+		/*  6 */ "aaaaaaaaaaaaa"
+		/*  7 */ "aaaaaaaaaaaaa"
+		/*  8 */ "aaaaaaaaaaaaa"
+		/*  9 */ "aaaaaaaaaaaaa"
+		/* 10 */ "aaaaaaaaaaaaa"
+		/* 11 */ "aaaaaaaaaaaaa"
+		/* 12 */ "aaaaaaaaaaaaa"
 
 		// Level 8
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
-		"aaaaaaaaaaaaa"
+		/* z\x*             111 */
+		/*    *   0123456789012 */
+		/*  0 */ "cacacacacacac"
+		/*  1 */ "a...........a"
+		/*  2 */ "c...........c"
+		/*  3 */ "a...........a"
+		/*  4 */ "c...........c"
+		/*  5 */ "a...........a"
+		/*  6 */ "c...........c"
+		/*  7 */ "a...........a"
+		/*  8 */ "c...........c"
+		/*  9 */ "a...........a"
+		/* 10 */ "c...........c"
+		/* 11 */ "a...........a"
+		/* 12 */ "cacacacacacac",
+
+		// Connectors:
+		"0: 6, 1, 0: 2\n"  /* Type 0, direction Z- */
+		"1: 6, 1, 12: 3\n"  /* Type 1, direction Z+ */,
 
-		// Level 9
-		"dadadadadadad"
-		"abbbbbbbbbbba"
-		"dbbbbbbbbbbbd"
-		"abbbbbbbbbbba"
-		"dbbbbbbbbbbbd"
-		"abbbbbbbbbbba"
-		"dbbbbbbbbbbbd"
-		"abbbbbbbbbbba"
-		"dbbbbbbbbbbbd"
-		"abbbbbbbbbbba"
-		"dbbbbbbbbbbbd"
-		"abbbbbbbbbbba"
-		"dadadadadadad",
-
-		// Connections:
-		"0: 6, 1,  0: 2\n"  /* Type 0, BLOCK_FACE_ZM */
-		"1: 6, 1, 12: 3\n"  /* Type 1, BLOCK_FACE_ZP */,
-		
 		// AllowedRotations:
-		7,  /* 1, 2, 3 CCW rotations */
-		
+		7,  /* 1, 2, 3 CCW rotation allowed */
+
 		// Merge strategy:
 		cBlockArea::msSpongePrint,
-	},
-} ;  // g_NetherFortStartingPrefabs1
 
-const size_t g_NetherFortPrefabs1Count = ARRAYCOUNT(g_NetherFortPrefabs1);
-const size_t g_NetherFortStartingPrefabs1Count = ARRAYCOUNT(g_NetherFortStartingPrefabs1);
+		// ShouldExtendFloor:
+		false,
+
+		// DefaultWeight:
+		100,
+
+		// DepthWeight:
+		"",
+
+		// AddWeightIfSame:
+		0,
+	},  // CentralRoom
+};
+
+
+
+
 
+// The prefab counts:
 
+const size_t g_NetherFortPrefabsCount = ARRAYCOUNT(g_NetherFortPrefabs);
 
+const size_t g_NetherFortStartingPrefabsCount = ARRAYCOUNT(g_NetherFortStartingPrefabs);
 
diff --git a/src/Generating/Prefabs/NetherFortPrefabs.h b/src/Generating/Prefabs/NetherFortPrefabs.h
index 37a91689d..04edc2953 100644
--- a/src/Generating/Prefabs/NetherFortPrefabs.h
+++ b/src/Generating/Prefabs/NetherFortPrefabs.h
@@ -1,7 +1,7 @@
 
 // NetherFortPrefabs.h
 
-// Declares the data used for nether fortress prefabs
+// Declares the prefabs in the group NetherFort
 
 #include "../Prefab.h"
 
@@ -9,7 +9,7 @@
 
 
 
-extern const cPrefab::sDef g_NetherFortPrefabs1[];
-extern const cPrefab::sDef g_NetherFortStartingPrefabs1[];
-extern const size_t g_NetherFortPrefabs1Count;
-extern const size_t g_NetherFortStartingPrefabs1Count;
+extern const cPrefab::sDef g_NetherFortPrefabs[];
+extern const cPrefab::sDef g_NetherFortStartingPrefabs[];
+extern const size_t g_NetherFortPrefabsCount;
+extern const size_t g_NetherFortStartingPrefabsCount;
diff --git a/src/Generating/Ravines.cpp b/src/Generating/Ravines.cpp
index e64f55214..267dcbbf9 100644
--- a/src/Generating/Ravines.cpp
+++ b/src/Generating/Ravines.cpp
@@ -269,7 +269,7 @@ void cStructGenRavines::cRavine::GenerateBaseDefPoints(int a_BlockX, int a_Block
 	int CenterZ = a_BlockZ + OffsetZ;
 	
 	// Get the base angle in which the ravine "axis" goes:
-	float Angle = (float)(((float)((a_Noise.IntNoise3DInt(20 * a_BlockX, 70 * a_BlockZ, 6000) / 9) % 16384)) / 16384.0 * 3.141592653);
+	float Angle = (float)(((float)((a_Noise.IntNoise3DInt(20 * a_BlockX, 70 * a_BlockZ, 6000) / 9) % 16384)) / 16384.0 * M_PI);
 	float xc = sin(Angle);
 	float zc = cos(Angle);
 	
@@ -311,12 +311,13 @@ void cStructGenRavines::cRavine::RefineDefPoints(const cRavDefPoints & a_Src, cR
 	a_Dst.clear();
 	a_Dst.reserve(Num * 2 + 2);
 	cRavDefPoints::const_iterator itr = a_Src.begin() + 1;
-	a_Dst.push_back(a_Src.front());
-	int PrevX = a_Src.front().m_BlockX;
-	int PrevZ = a_Src.front().m_BlockZ;
-	int PrevR = a_Src.front().m_Radius;
-	int PrevT = a_Src.front().m_Top;
-	int PrevB = a_Src.front().m_Bottom;
+	const cRavDefPoint & Source = a_Src.front();
+	a_Dst.push_back(Source);
+	int PrevX = Source.m_BlockX;
+	int PrevZ = Source.m_BlockZ;
+	int PrevR = Source.m_Radius;
+	int PrevT = Source.m_Top;
+	int PrevB = Source.m_Bottom;
 	for (int i = 0; i <= Num; ++i, ++itr)
 	{
 		int dx = itr->m_BlockX - PrevX;