diff --git a/src/Generating/Prefab.cpp b/src/Generating/Prefab.cpp
index 0f20603be..9aef7a94b 100644
--- a/src/Generating/Prefab.cpp
+++ b/src/Generating/Prefab.cpp
@@ -136,6 +136,33 @@ cPrefab::cPrefab(const cPrefab::sDef & a_Def) :
 	ParseConnectors(a_Def.m_Connectors);
 	ParseDepthWeight(a_Def.m_DepthWeight);
 	
+	AddRotatedBlockAreas();
+}
+
+
+
+
+
+cPrefab::cPrefab(const cBlockArea & a_Image, int a_AllowedRotations) :
+	m_Size(a_Image.GetSize()),
+	m_AllowedRotations(a_AllowedRotations),
+	m_MergeStrategy(cBlockArea::msOverwrite),
+	m_ShouldExtendFloor(false),
+	m_DefaultWeight(1),
+	m_AddWeightIfSame(0)
+{
+	m_HitBox.p1.Set(0, 0, 0);
+	m_HitBox.p2.Set(m_Size.x - 1, m_Size.y - 1, m_Size.z - 1);
+	m_BlockArea[0].CopyFrom(a_Image);
+	AddRotatedBlockAreas();
+}
+
+
+
+
+
+void cPrefab::AddRotatedBlockAreas(void)
+{
 	// 1 CCW rotation:
 	if ((m_AllowedRotations & 0x01) != 0)
 	{
@@ -257,6 +284,15 @@ int cPrefab::GetPieceWeight(const cPlacedPiece & a_PlacedPiece, const cPiece::cC
 
 
 
+void cPrefab::AddConnector(int a_RelX, int a_RelY, int a_RelZ, eBlockFace a_Direction, int a_Type)
+{
+	m_Connectors.push_back(cConnector(a_RelX, a_RelY, a_RelZ, a_Type, a_Direction));
+}
+
+
+
+
+
 void cPrefab::ParseCharMap(CharMap & a_CharMapOut, const char * a_CharMapDef)
 {
 	ASSERT(a_CharMapDef != NULL);
diff --git a/src/Generating/Prefab.h b/src/Generating/Prefab.h
index 472584c3a..c08413e87 100644
--- a/src/Generating/Prefab.h
+++ b/src/Generating/Prefab.h
@@ -84,8 +84,13 @@ public:
 		int m_AddWeightIfSame;
 	};
 	
+	
+	/** Creates a prefab from the provided definition. */
 	cPrefab(const sDef & a_Def);
 	
+	/** Creates a prefab based on the given BlockArea and allowed rotations. */
+	cPrefab(const cBlockArea & a_Image, int a_AllowedRotations);
+	
 	/** Draws the prefab into the specified chunk, according to the placement stored in the PlacedPiece. */
 	void Draw(cChunkDesc & a_Dest, const cPlacedPiece * a_Placement) const;
 	
@@ -98,6 +103,12 @@ public:
 	
 	/** Returns the unmodified DefaultWeight property for the piece. */
 	int GetDefaultWeight(void) const { return m_DefaultWeight; }
+	
+	/** Sets the AddWeightIfSame member, that is used to modify the weight when the previous piece is the same prefab */
+	void SetAddWeightIfSame(int a_AddWeightIfSame) { m_AddWeightIfSame = a_AddWeightIfSame; }
+	
+	/** Adds the specified connector to the list of connectors this piece supports. */
+	void AddConnector(int a_RelX, int a_RelY, int a_RelZ, eBlockFace a_Direction, int a_Type);
 
 protected:
 	/** Packs complete definition of a single block, for per-letter assignment. */
@@ -160,6 +171,10 @@ protected:
 	virtual cCuboid GetHitBox(void) const override;
 	virtual bool CanRotateCCW(int a_NumRotations) const override;
 	
+	/** Based on the m_AllowedRotations, adds rotated cBlockAreas to the m_BlockArea array.
+	To be called only from this class's constructor! */
+	void AddRotatedBlockAreas(void);
+	
 	/** Parses the CharMap in the definition into a CharMap binary data used for translating the definition into BlockArea. */
 	void ParseCharMap(CharMap & a_CharMapOut, const char * a_CharMapDef);