69 files changed, 679 insertions, 425 deletions

diff --git a/src/BlockArea.cpp b/src/BlockArea.cpp
index 185582ba3..0e4c42f0f 100644
--- a/src/BlockArea.cpp
+++ b/src/BlockArea.cpp
@@ -59,7 +59,7 @@ void InternalMergeBlocks(
 				}
 				else
 				{
-					BLOCKTYPE FakeDestMeta = 0;
+					NIBBLETYPE FakeDestMeta = 0;
 					Combinator(a_DstTypes[DstIdx], a_SrcTypes[SrcIdx], FakeDestMeta, (NIBBLETYPE)0);
 				}
 				++DstIdx;
diff --git a/src/BlockEntities/BlockEntity.cpp b/src/BlockEntities/BlockEntity.cpp
index 430f04551..05ad03a3d 100644
--- a/src/BlockEntities/BlockEntity.cpp
+++ b/src/BlockEntities/BlockEntity.cpp
@@ -28,24 +28,26 @@ cBlockEntity * cBlockEntity::CreateByBlockType(BLOCKTYPE a_BlockType, NIBBLETYPE
 	switch (a_BlockType)
 	{
 		case E_BLOCK_BEACON:        return new cBeaconEntity      (a_BlockX, a_BlockY, a_BlockZ, a_World);
-		case E_BLOCK_CHEST:         return new cChestEntity       (a_BlockX, a_BlockY, a_BlockZ, a_World);
+		case E_BLOCK_CHEST:         return new cChestEntity       (a_BlockX, a_BlockY, a_BlockZ, a_World, a_BlockType);
 		case E_BLOCK_COMMAND_BLOCK: return new cCommandBlockEntity(a_BlockX, a_BlockY, a_BlockZ, a_World);
 		case E_BLOCK_DISPENSER:     return new cDispenserEntity   (a_BlockX, a_BlockY, a_BlockZ, a_World);
 		case E_BLOCK_DROPPER:       return new cDropperEntity     (a_BlockX, a_BlockY, a_BlockZ, a_World);
 		case E_BLOCK_ENDER_CHEST:   return new cEnderChestEntity  (a_BlockX, a_BlockY, a_BlockZ, a_World);
 		case E_BLOCK_FLOWER_POT:    return new cFlowerPotEntity   (a_BlockX, a_BlockY, a_BlockZ, a_World);
-		case E_BLOCK_HEAD:          return new cMobHeadEntity     (a_BlockX, a_BlockY, a_BlockZ, a_World);
-		case E_BLOCK_LIT_FURNACE:   return new cFurnaceEntity     (a_BlockX, a_BlockY, a_BlockZ, a_BlockType, a_BlockMeta, a_World);
 		case E_BLOCK_FURNACE:       return new cFurnaceEntity     (a_BlockX, a_BlockY, a_BlockZ, a_BlockType, a_BlockMeta, a_World);
+		case E_BLOCK_HEAD:          return new cMobHeadEntity     (a_BlockX, a_BlockY, a_BlockZ, a_World);
 		case E_BLOCK_HOPPER:        return new cHopperEntity      (a_BlockX, a_BlockY, a_BlockZ, a_World);
+		case E_BLOCK_JUKEBOX:       return new cJukeboxEntity     (a_BlockX, a_BlockY, a_BlockZ, a_World);
+		case E_BLOCK_LIT_FURNACE:   return new cFurnaceEntity     (a_BlockX, a_BlockY, a_BlockZ, a_BlockType, a_BlockMeta, a_World);
 		case E_BLOCK_SIGN_POST:     return new cSignEntity        (a_BlockType, a_BlockX, a_BlockY, a_BlockZ, a_World);
+		case E_BLOCK_TRAPPED_CHEST: return new cChestEntity       (a_BlockX, a_BlockY, a_BlockZ, a_World, a_BlockType);
 		case E_BLOCK_WALLSIGN:      return new cSignEntity        (a_BlockType, a_BlockX, a_BlockY, a_BlockZ, a_World);
 		case E_BLOCK_NOTE_BLOCK:    return new cNoteEntity        (a_BlockX, a_BlockY, a_BlockZ, a_World);
-		case E_BLOCK_JUKEBOX:       return new cJukeboxEntity     (a_BlockX, a_BlockY, a_BlockZ, a_World);
 	}
 	LOGD("%s: Requesting creation of an unknown block entity - block type %d (%s)",
 		__FUNCTION__, a_BlockType, ItemTypeToString(a_BlockType).c_str()
 	);
+	ASSERT(!"Requesting creation of an unknown block entity");
 	return NULL;
 }
 
diff --git a/src/BlockEntities/ChestEntity.cpp b/src/BlockEntities/ChestEntity.cpp
index cb9cc89bf..ca164464c 100644
--- a/src/BlockEntities/ChestEntity.cpp
+++ b/src/BlockEntities/ChestEntity.cpp
@@ -11,8 +11,9 @@
 
 
 
-cChestEntity::cChestEntity(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World) :
-	super(E_BLOCK_CHEST, a_BlockX, a_BlockY, a_BlockZ, ContentsWidth, ContentsHeight, a_World)
+cChestEntity::cChestEntity(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World, BLOCKTYPE a_Type) :
+	super(a_Type, a_BlockX, a_BlockY, a_BlockZ, ContentsWidth, ContentsHeight, a_World),
+	m_NumActivePlayers(0)
 {
 	cBlockEntityWindowOwner::SetBlockEntity(this);
 }
@@ -113,7 +114,7 @@ void cChestEntity::UsedBy(cPlayer * a_Player)
 	// The few false positives aren't much to worry about
 	int ChunkX, ChunkZ;
 	cChunkDef::BlockToChunk(m_PosX, m_PosZ, ChunkX, ChunkZ);
-	m_World->MarkChunkDirty(ChunkX, ChunkZ);
+	m_World->MarkChunkDirty(ChunkX, ChunkZ, true);
 }
 
 
diff --git a/src/BlockEntities/ChestEntity.h b/src/BlockEntities/ChestEntity.h
index ce16f84d7..310618504 100644
--- a/src/BlockEntities/ChestEntity.h
+++ b/src/BlockEntities/ChestEntity.h
@@ -34,8 +34,8 @@ public:
 	
 	// tolua_end
 	
-	/// Constructor used for normal operation
-	cChestEntity(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World);
+	/** Constructor used for normal operation */
+	cChestEntity(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World, BLOCKTYPE a_Type);
 	
 	virtual ~cChestEntity();
 
@@ -48,8 +48,20 @@ public:
 	virtual void SendTo(cClientHandle & a_Client) override;
 	virtual void UsedBy(cPlayer * a_Player) override;
 	
-	/// Opens a new chest window for this chest. Scans for neighbors to open a double chest window, if appropriate.
+	/** Opens a new chest window for this chest.
+	Scans for neighbors to open a double chest window, if appropriate. */
 	void OpenNewWindow(void);
+
+	/** Gets the number of players who currently have this chest open */
+	int GetNumberOfPlayers(void) const { return m_NumActivePlayers; }
+
+	/** Sets the number of players who currently have this chest open */
+	void SetNumberOfPlayers(int a_NumActivePlayers) { m_NumActivePlayers = a_NumActivePlayers; }
+
+private:
+
+	/** Number of players who currently have this chest open */
+	int m_NumActivePlayers;
 } ;  // tolua_export
 
 
diff --git a/src/BlockEntities/FlowerPotEntity.h b/src/BlockEntities/FlowerPotEntity.h
index da3fe9b7e..e3570eb9a 100644
--- a/src/BlockEntities/FlowerPotEntity.h
+++ b/src/BlockEntities/FlowerPotEntity.h
@@ -53,7 +53,7 @@ public:
 	cItem GetItem(void) const { return m_Item; }
 	
 	/** Set the item in the flower pot */
-	void SetItem(const cItem a_Item) { m_Item = a_Item; }
+	void SetItem(const cItem & a_Item) { m_Item = a_Item; }
 	
 	// tolua_end
 	
diff --git a/src/BlockEntities/HopperEntity.cpp b/src/BlockEntities/HopperEntity.cpp
index 5856f20d1..7af4b9d5d 100644
--- a/src/BlockEntities/HopperEntity.cpp
+++ b/src/BlockEntities/HopperEntity.cpp
@@ -157,6 +157,7 @@ bool cHopperEntity::MoveItemsIn(cChunk & a_Chunk, Int64 a_CurrentTick)
 	bool res = false;
 	switch (a_Chunk.GetBlock(m_RelX, m_PosY + 1, m_RelZ))
 	{
+		case E_BLOCK_TRAPPED_CHEST:
 		case E_BLOCK_CHEST:
 		{
 			// Chests have special handling because of double-chests
@@ -322,6 +323,7 @@ bool cHopperEntity::MoveItemsOut(cChunk & a_Chunk, Int64 a_CurrentTick)
 	bool res = false;
 	switch (DestChunk->GetBlock(OutRelX, OutY, OutRelZ))
 	{
+		case E_BLOCK_TRAPPED_CHEST:
 		case E_BLOCK_CHEST:
 		{
 			// Chests have special handling because of double-chests
@@ -366,19 +368,19 @@ bool cHopperEntity::MoveItemsOut(cChunk & a_Chunk, Int64 a_CurrentTick)
 /// Moves items from a chest (dblchest) above the hopper into this hopper. Returns true if contents have changed.
 bool cHopperEntity::MoveItemsFromChest(cChunk & a_Chunk)
 {
-	cChestEntity * Chest = (cChestEntity *)a_Chunk.GetBlockEntity(m_PosX, m_PosY + 1, m_PosZ);
-	if (Chest == NULL)
+	cChestEntity * MainChest = (cChestEntity *)a_Chunk.GetBlockEntity(m_PosX, m_PosY + 1, m_PosZ);
+	if (MainChest == NULL)
 	{
 		LOGWARNING("%s: A chest entity was not found where expected, at {%d, %d, %d}", __FUNCTION__, m_PosX, m_PosY + 1, m_PosZ);
 		return false;
 	}
-	if (MoveItemsFromGrid(*Chest))
+	if (MoveItemsFromGrid(*MainChest))
 	{
 		// Moved the item from the chest directly above the hopper
 		return true;
 	}
 	
-	// Check if the chest is a double-chest, if so, try to move from there:
+	// Check if the chest is a double-chest (chest directly above was empty), if so, try to move from there:
 	static const struct
 	{
 		int x, z;
@@ -395,21 +397,26 @@ bool cHopperEntity::MoveItemsFromChest(cChunk & a_Chunk)
 		int x = m_RelX + Coords[i].x;
 		int z = m_RelZ + Coords[i].z;
 		cChunk * Neighbor = a_Chunk.GetRelNeighborChunkAdjustCoords(x, z);
-		if (
-			(Neighbor == NULL) ||
-			(Neighbor->GetBlock(x, m_PosY + 1, z) != E_BLOCK_CHEST)
-		)
+		if (Neighbor == NULL)
 		{
 			continue;
 		}
-		Chest = (cChestEntity *)Neighbor->GetBlockEntity(m_PosX + Coords[i].x, m_PosY + 1, m_PosZ + Coords[i].z);
-		if (Chest == NULL)
+
+		BLOCKTYPE Block = Neighbor->GetBlock(x, m_PosY + 1, z);
+		if (Block != MainChest->GetBlockType())
+		{
+			// Not the same kind of chest
+			continue;
+		}
+
+		cChestEntity * SideChest = (cChestEntity *)Neighbor->GetBlockEntity(m_PosX + Coords[i].x, m_PosY + 1, m_PosZ + Coords[i].z);
+		if (SideChest == NULL)
 		{
 			LOGWARNING("%s: A chest entity was not found where expected, at {%d, %d, %d}", __FUNCTION__, m_PosX + Coords[i].x, m_PosY + 1, m_PosZ + Coords[i].z);
 		}
 		else
 		{
-			if (MoveItemsFromGrid(*Chest))
+			if (MoveItemsFromGrid(*SideChest))
 			{
 				return true;
 			}
@@ -550,10 +557,11 @@ bool cHopperEntity::MoveItemsToChest(cChunk & a_Chunk, int a_BlockX, int a_Block
 	}
 	if (MoveItemsToGrid(*Chest))
 	{
+		// Chest block directly connected was not full
 		return true;
 	}
 
-	// Check if the chest is a double-chest, if so, try to move into the other half:
+	// Check if the chest is a double-chest (chest block directly connected was full), if so, try to move into the other half:
 	static const struct
 	{
 		int x, z;
@@ -572,13 +580,18 @@ bool cHopperEntity::MoveItemsToChest(cChunk & a_Chunk, int a_BlockX, int a_Block
 		int x = RelX + Coords[i].x;
 		int z = RelZ + Coords[i].z;
 		cChunk * Neighbor = a_Chunk.GetRelNeighborChunkAdjustCoords(x, z);
-		if (
-			(Neighbor == NULL) ||
-			(Neighbor->GetBlock(x, a_BlockY, z) != E_BLOCK_CHEST)
-		)
+		if (Neighbor == NULL)
+		{
+			continue;
+		}
+
+		BLOCKTYPE Block = Neighbor->GetBlock(x, a_BlockY, z);
+		if (Block != Chest->GetBlockType())
 		{
+			// Not the same kind of chest
 			continue;
 		}
+
 		Chest = (cChestEntity *)Neighbor->GetBlockEntity(a_BlockX + Coords[i].x, a_BlockY, a_BlockZ + Coords[i].z);
 		if (Chest == NULL)
 		{
diff --git a/src/BlockEntities/NoteEntity.cpp b/src/BlockEntities/NoteEntity.cpp
index 58b05a324..95145c117 100644
--- a/src/BlockEntities/NoteEntity.cpp
+++ b/src/BlockEntities/NoteEntity.cpp
@@ -91,7 +91,7 @@ void cNoteEntity::MakeSound(void)
 	
 	// TODO: instead of calculating the power function over and over, make a precalculated table - there's only 24 pitches after all
 	float calcPitch = pow(2.0f, ((float)m_Pitch - 12.0f) / 12.0f);
-	m_World->BroadcastSoundEffect(sampleName, m_PosX * 8, m_PosY * 8, m_PosZ * 8, 3.0f, calcPitch);
+	m_World->BroadcastSoundEffect(sampleName, (double)m_PosX, (double)m_PosY, (double)m_PosZ, 3.0f, calcPitch);
 }
 
 
diff --git a/src/BlockInfo.cpp b/src/BlockInfo.cpp
index 9a953e396..4fc1d602c 100644
--- a/src/BlockInfo.cpp
+++ b/src/BlockInfo.cpp
@@ -101,6 +101,7 @@ void cBlockInfo::Initialize(cBlockInfoArray & a_Info)
 	a_Info[E_BLOCK_NEW_LEAVES          ].m_SpreadLightFalloff = 1;
 	a_Info[E_BLOCK_SIGN_POST           ].m_SpreadLightFalloff = 1;
 	a_Info[E_BLOCK_TORCH               ].m_SpreadLightFalloff = 1;
+	a_Info[E_BLOCK_TRAPPED_CHEST       ].m_SpreadLightFalloff = 1;
 	a_Info[E_BLOCK_TRIPWIRE            ].m_SpreadLightFalloff = 1;
 	a_Info[E_BLOCK_TRIPWIRE_HOOK       ].m_SpreadLightFalloff = 1;
 	a_Info[E_BLOCK_VINES               ].m_SpreadLightFalloff = 1;
@@ -162,6 +163,7 @@ void cBlockInfo::Initialize(cBlockInfoArray & a_Info)
 	a_Info[E_BLOCK_STATIONARY_WATER    ].m_Transparent = true;
 	a_Info[E_BLOCK_STONE_BUTTON        ].m_Transparent = true;
 	a_Info[E_BLOCK_STONE_PRESSURE_PLATE].m_Transparent = true;
+	a_Info[E_BLOCK_TRAPPED_CHEST       ].m_Transparent = true;
 	a_Info[E_BLOCK_TRIPWIRE            ].m_Transparent = true;
 	a_Info[E_BLOCK_TRIPWIRE_HOOK       ].m_Transparent = true;
 	a_Info[E_BLOCK_TALL_GRASS          ].m_Transparent = true;
@@ -287,6 +289,7 @@ void cBlockInfo::Initialize(cBlockInfoArray & a_Info)
 	a_Info[E_BLOCK_TALL_GRASS          ].m_IsSnowable = false;
 	a_Info[E_BLOCK_TNT                 ].m_IsSnowable = false;
 	a_Info[E_BLOCK_TORCH               ].m_IsSnowable = false;
+	a_Info[E_BLOCK_TRAPPED_CHEST       ].m_IsSnowable = false;
 	a_Info[E_BLOCK_TRIPWIRE            ].m_IsSnowable = false;
 	a_Info[E_BLOCK_TRIPWIRE_HOOK       ].m_IsSnowable = false;
 	a_Info[E_BLOCK_VINES               ].m_IsSnowable = false;
diff --git a/src/Blocks/BlockButton.h b/src/Blocks/BlockButton.h
index ada7d58f7..7f92681dc 100644
--- a/src/Blocks/BlockButton.h
+++ b/src/Blocks/BlockButton.h
@@ -24,7 +24,7 @@ public:
 
 		a_ChunkInterface.SetBlockMeta(a_BlockX, a_BlockY, a_BlockZ, Meta);
 		a_WorldInterface.WakeUpSimulators(a_BlockX, a_BlockY, a_BlockZ);
-		a_WorldInterface.GetBroadcastManager().BroadcastSoundEffect("random.click", a_BlockX * 8, a_BlockY * 8, a_BlockZ * 8, 0.5f, (Meta & 0x08) ? 0.6f : 0.5f);
+		a_WorldInterface.GetBroadcastManager().BroadcastSoundEffect("random.click", (double)a_BlockX, (double)a_BlockY, (double)a_BlockZ, 0.5f, (Meta & 0x08) ? 0.6f : 0.5f);
 
 		// Queue a button reset (unpress)
 		a_ChunkInterface.QueueSetBlock(a_BlockX, a_BlockY, a_BlockZ, m_BlockType, (a_ChunkInterface.GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ) & 0x07), m_BlockType == E_BLOCK_STONE_BUTTON ? 20 : 30, m_BlockType, a_WorldInterface);
diff --git a/src/Blocks/BlockChest.h b/src/Blocks/BlockChest.h
index c9a769c75..f899f4bcb 100644
--- a/src/Blocks/BlockChest.h
+++ b/src/Blocks/BlockChest.h
@@ -44,16 +44,16 @@ public:
 		}
 		double yaw = a_Player->GetYaw();
 		if (
-			(Area.GetRelBlockType(0, 0, 1) == E_BLOCK_CHEST) ||
-			(Area.GetRelBlockType(2, 0, 1) == E_BLOCK_CHEST)
+			(Area.GetRelBlockType(0, 0, 1) == m_BlockType) ||
+			(Area.GetRelBlockType(2, 0, 1) == m_BlockType)
 		)
 		{
 			a_BlockMeta = ((yaw >= -90) && (yaw < 90)) ? 2 : 3;
 			return true;
 		}
 		if (
-			(Area.GetRelBlockType(0, 0, 1) == E_BLOCK_CHEST) ||
-			(Area.GetRelBlockType(2, 0, 1) == E_BLOCK_CHEST)
+			(Area.GetRelBlockType(0, 0, 1) == m_BlockType) ||
+			(Area.GetRelBlockType(2, 0, 1) == m_BlockType)
 		)
 		{
 			// FIXME: This is unreachable, as the condition is the same as the above one
@@ -130,12 +130,12 @@ public:
 		}
 		
 		int NumChestNeighbors = 0;
-		if (Area.GetRelBlockType(1, 0, 2) == E_BLOCK_CHEST)
+		if (Area.GetRelBlockType(1, 0, 2) == m_BlockType)
 		{
 			if (
-				(Area.GetRelBlockType(0, 0, 2) == E_BLOCK_CHEST) ||
-				(Area.GetRelBlockType(1, 0, 1) == E_BLOCK_CHEST) ||
-				(Area.GetRelBlockType(1, 0, 3) == E_BLOCK_CHEST)
+				(Area.GetRelBlockType(0, 0, 2) == m_BlockType) ||
+				(Area.GetRelBlockType(1, 0, 1) == m_BlockType) ||
+				(Area.GetRelBlockType(1, 0, 3) == m_BlockType)
 			)
 			{
 				// Already a doublechest neighbor, disallow:
@@ -143,12 +143,12 @@ public:
 			}
 			NumChestNeighbors += 1;
 		}
-		if (Area.GetRelBlockType(3, 0, 2) == E_BLOCK_CHEST)
+		if (Area.GetRelBlockType(3, 0, 2) == m_BlockType)
 		{
 			if (
-				(Area.GetRelBlockType(4, 0, 2) == E_BLOCK_CHEST) ||
-				(Area.GetRelBlockType(3, 0, 1) == E_BLOCK_CHEST) ||
-				(Area.GetRelBlockType(3, 0, 3) == E_BLOCK_CHEST)
+				(Area.GetRelBlockType(4, 0, 2) == m_BlockType) ||
+				(Area.GetRelBlockType(3, 0, 1) == m_BlockType) ||
+				(Area.GetRelBlockType(3, 0, 3) == m_BlockType)
 			)
 			{
 				// Already a doublechest neighbor, disallow:
@@ -156,12 +156,12 @@ public:
 			}
 			NumChestNeighbors += 1;
 		}
-		if (Area.GetRelBlockType(2, 0, 1) == E_BLOCK_CHEST)
+		if (Area.GetRelBlockType(2, 0, 1) == m_BlockType)
 		{
 			if (
-				(Area.GetRelBlockType(2, 0, 0) == E_BLOCK_CHEST) ||
-				(Area.GetRelBlockType(1, 0, 1) == E_BLOCK_CHEST) ||
-				(Area.GetRelBlockType(3, 0, 1) == E_BLOCK_CHEST)
+				(Area.GetRelBlockType(2, 0, 0) == m_BlockType) ||
+				(Area.GetRelBlockType(1, 0, 1) == m_BlockType) ||
+				(Area.GetRelBlockType(3, 0, 1) == m_BlockType)
 			)
 			{
 				// Already a doublechest neighbor, disallow:
@@ -169,12 +169,12 @@ public:
 			}
 			NumChestNeighbors += 1;
 		}
-		if (Area.GetRelBlockType(2, 0, 3) == E_BLOCK_CHEST)
+		if (Area.GetRelBlockType(2, 0, 3) == m_BlockType)
 		{
 			if (
-				(Area.GetRelBlockType(2, 0, 4) == E_BLOCK_CHEST) ||
-				(Area.GetRelBlockType(1, 0, 3) == E_BLOCK_CHEST) ||
-				(Area.GetRelBlockType(3, 0, 3) == E_BLOCK_CHEST)
+				(Area.GetRelBlockType(2, 0, 4) == m_BlockType) ||
+				(Area.GetRelBlockType(1, 0, 3) == m_BlockType) ||
+				(Area.GetRelBlockType(3, 0, 3) == m_BlockType)
 			)
 			{
 				// Already a doublechest neighbor, disallow:
@@ -217,7 +217,7 @@ public:
 	/// If there's a chest in the a_Area in the specified coords, modifies its meta to a_NewMeta and returns true.
 	bool CheckAndAdjustNeighbor(cChunkInterface & a_ChunkInterface, const cBlockArea & a_Area, int a_RelX, int a_RelZ, NIBBLETYPE a_NewMeta)
 	{
-		if (a_Area.GetRelBlockType(a_RelX, 0, a_RelZ) != E_BLOCK_CHEST)
+		if (a_Area.GetRelBlockType(a_RelX, 0, a_RelZ) != m_BlockType)
 		{
 			return false;
 		}
@@ -228,7 +228,7 @@ public:
 
 	virtual void ConvertToPickups(cItems & a_Pickups, NIBBLETYPE a_BlockMeta) override
 	{
-		a_Pickups.push_back(cItem(E_BLOCK_CHEST, 1, 0));
+		a_Pickups.push_back(cItem(m_BlockType, 1, 0));
 	}
 } ;
 
diff --git a/src/Blocks/BlockCloth.h b/src/Blocks/BlockCloth.h
index a136d3b9d..3c1ae7c25 100644
--- a/src/Blocks/BlockCloth.h
+++ b/src/Blocks/BlockCloth.h
@@ -16,13 +16,6 @@ public:
 	{
 	}
 
-
-	virtual void ConvertToPickups(cItems & a_Pickups, NIBBLETYPE a_BlockMeta) override
-	{
-		a_Pickups.push_back(cItem(E_BLOCK_WOOL, 1, a_BlockMeta));
-	}
-
-
 	virtual const char * GetStepSound(void) override
 	{
 		return "step.cloth";
diff --git a/src/Blocks/BlockFarmland.h b/src/Blocks/BlockFarmland.h
index 3dd5bcd1d..390b6e5ee 100644
--- a/src/Blocks/BlockFarmland.h
+++ b/src/Blocks/BlockFarmland.h
@@ -19,15 +19,13 @@
 class cBlockFarmlandHandler :
 	public cBlockHandler
 {
-	typedef cBlockHandler super;
 	
 public:
-	cBlockFarmlandHandler(void) :
-		super(E_BLOCK_FARMLAND)
+	cBlockFarmlandHandler(BLOCKTYPE a_BlockType) :
+		cBlockHandler(a_BlockType)
 	{
 	}
 
-
 	virtual void OnUpdate(cChunkInterface & cChunkInterface, cWorldInterface & a_WorldInterface, cBlockPluginInterface & a_PluginInterface, cChunk & a_Chunk, int a_RelX, int a_RelY, int a_RelZ) override
 	{
 		bool Found = false;
@@ -105,6 +103,11 @@ public:
 			}
 		}
 	}
+
+	virtual void ConvertToPickups(cItems & a_Pickups, NIBBLETYPE a_BlockMeta) override
+	{
+		a_Pickups.Add(E_BLOCK_DIRT, 1, 0); // Reset meta
+	}
 } ;
 
 
diff --git a/src/Blocks/BlockHandler.cpp b/src/Blocks/BlockHandler.cpp
index 3ddb7531d..cef1f5f09 100644
--- a/src/Blocks/BlockHandler.cpp
+++ b/src/Blocks/BlockHandler.cpp
@@ -176,7 +176,7 @@ cBlockHandler * cBlockHandler::CreateBlockHandler(BLOCKTYPE a_BlockType)
 {
 	switch(a_BlockType)
 	{
-		// Block handlers, alphabetically sorted:
+		// Block handlers, alphabetically sorted:	
 		case E_BLOCK_ACACIA_WOOD_STAIRS:    return new cBlockStairsHandler          (a_BlockType);
 		case E_BLOCK_ACTIVATOR_RAIL:        return new cBlockRailHandler            (a_BlockType);
 		case E_BLOCK_ANVIL:                 return new cBlockAnvilHandler           (a_BlockType);
@@ -211,7 +211,7 @@ cBlockHandler * cBlockHandler::CreateBlockHandler(BLOCKTYPE a_BlockType)
 		case E_BLOCK_EMERALD_ORE:           return new cBlockOreHandler             (a_BlockType);
 		case E_BLOCK_ENCHANTMENT_TABLE:     return new cBlockEnchantmentTableHandler(a_BlockType);
 		case E_BLOCK_ENDER_CHEST:           return new cBlockEnderchestHandler      (a_BlockType);
-		case E_BLOCK_FARMLAND:              return new cBlockFarmlandHandler        (           );
+		case E_BLOCK_FARMLAND:              return new cBlockFarmlandHandler        (a_BlockType);
 		case E_BLOCK_FENCE_GATE:            return new cBlockFenceGateHandler       (a_BlockType);
 		case E_BLOCK_FIRE:                  return new cBlockFireHandler            (a_BlockType);
 		case E_BLOCK_FLOWER_POT:            return new cBlockFlowerPotHandler       (a_BlockType);
@@ -238,9 +238,9 @@ cBlockHandler * cBlockHandler::CreateBlockHandler(BLOCKTYPE a_BlockType)
 		case E_BLOCK_LAPIS_ORE:             return new cBlockOreHandler             (a_BlockType);
 		case E_BLOCK_LAVA:                  return new cBlockLavaHandler            (a_BlockType);
 		case E_BLOCK_LEAVES:                return new cBlockLeavesHandler          (a_BlockType);
+		case E_BLOCK_LIGHT_WEIGHTED_PRESSURE_PLATE: return new cBlockPressurePlateHandler(a_BlockType);
 		case E_BLOCK_LILY_PAD:              return new cBlockLilypadHandler         (a_BlockType);
 		case E_BLOCK_LIT_FURNACE:           return new cBlockFurnaceHandler         (a_BlockType);
-		case E_BLOCK_LIGHT_WEIGHTED_PRESSURE_PLATE: return new cBlockPressurePlateHandler(a_BlockType);
 		case E_BLOCK_LOG:                   return new cBlockSidewaysHandler        (a_BlockType);
 		case E_BLOCK_MELON:                 return new cBlockMelonHandler           (a_BlockType);
 		case E_BLOCK_MELON_STEM:            return new cBlockStemsHandler           (a_BlockType);
@@ -293,6 +293,7 @@ cBlockHandler * cBlockHandler::CreateBlockHandler(BLOCKTYPE a_BlockType)
 		case E_BLOCK_TORCH:                 return new cBlockTorchHandler           (a_BlockType);
 		case E_BLOCK_TRAPDOOR:              return new cBlockTrapdoorHandler        (a_BlockType);
 		case E_BLOCK_TNT:                   return new cBlockTNTHandler             (a_BlockType);
+		case E_BLOCK_TRAPPED_CHEST:         return new cBlockChestHandler           (a_BlockType);
 		case E_BLOCK_TRIPWIRE:              return new cBlockTripwireHandler        (a_BlockType);
 		case E_BLOCK_TRIPWIRE_HOOK:         return new cBlockTripwireHookHandler    (a_BlockType);
 		case E_BLOCK_VINES:                 return new cBlockVineHandler            (a_BlockType);
diff --git a/src/Blocks/BlockHayBale.h b/src/Blocks/BlockHayBale.h
index 5b646e264..3c6472adb 100644
--- a/src/Blocks/BlockHayBale.h
+++ b/src/Blocks/BlockHayBale.h
@@ -1,7 +1,6 @@
 
 #pragma once
 
-#include "BlockHandler.h"
 #include "BlockSideways.h"
 
 
diff --git a/src/Blocks/BlockLadder.h b/src/Blocks/BlockLadder.h
index a605edf3f..7efd8e444 100644
--- a/src/Blocks/BlockLadder.h
+++ b/src/Blocks/BlockLadder.h
@@ -41,21 +41,27 @@ public:
 	}
 
 
-	static NIBBLETYPE DirectionToMetaData(eBlockFace a_Direction)  // tolua_export
-	{  // tolua_export
+	virtual void ConvertToPickups(cItems & a_Pickups, NIBBLETYPE a_BlockMeta) override
+	{
+		a_Pickups.Add(m_BlockType, 1, 0); // Reset meta
+	}
+
+
+	static NIBBLETYPE DirectionToMetaData(eBlockFace a_Direction)
+	{
 		switch (a_Direction)
 		{
 			case BLOCK_FACE_ZM: return 0x2;
 			case BLOCK_FACE_ZP: return 0x3;
 			case BLOCK_FACE_XM: return 0x4;
 			case BLOCK_FACE_XP: return 0x5;
-			default:  return 0x2;
+			default:            return 0x2;
 		}
-	}  // tolua_export
+	}
 
 
-	static eBlockFace MetaDataToDirection(NIBBLETYPE a_MetaData)  // tolua_export
-	{														// tolua_export
+	static eBlockFace MetaDataToDirection(NIBBLETYPE a_MetaData)
+	{
 		switch (a_MetaData)
 		{
 			case 0x2: return BLOCK_FACE_ZM;
@@ -64,10 +70,10 @@ public:
 			case 0x5: return BLOCK_FACE_XP;
 			default:  return BLOCK_FACE_ZM;
 		}
-	}  // tolua_export
+	}
 
 
-	/// Finds a suitable Direction for the Ladder. Returns BLOCK_FACE_BOTTOM on failure
+	/** Finds a suitable Direction for the Ladder. Returns BLOCK_FACE_BOTTOM on failure */
 	static eBlockFace FindSuitableBlockFace(cChunkInterface & a_ChunkInterface, int a_BlockX, int a_BlockY, int a_BlockZ)
 	{
 		for (int FaceInt = BLOCK_FACE_ZM; FaceInt <= BLOCK_FACE_XP; FaceInt++)
diff --git a/src/Blocks/BlockLever.h b/src/Blocks/BlockLever.h
index 4e745d413..7ce8d038e 100644
--- a/src/Blocks/BlockLever.h
+++ b/src/Blocks/BlockLever.h
@@ -24,7 +24,7 @@ public:
 
 		a_ChunkInterface.SetBlockMeta(a_BlockX, a_BlockY, a_BlockZ, Meta);
 		a_WorldInterface.WakeUpSimulators(a_BlockX, a_BlockY, a_BlockZ);
-		a_WorldInterface.GetBroadcastManager().BroadcastSoundEffect("random.click", a_BlockX * 8, a_BlockY * 8, a_BlockZ * 8, 0.5f, (Meta & 0x08) ? 0.6f : 0.5f);
+		a_WorldInterface.GetBroadcastManager().BroadcastSoundEffect("random.click", (double)a_BlockX, (double)a_BlockY, (double)a_BlockZ, 0.5f, (Meta & 0x08) ? 0.6f : 0.5f);
 	}
 
 
diff --git a/src/Blocks/BlockPiston.cpp b/src/Blocks/BlockPiston.cpp
index faf639312..ec480aaea 100644
--- a/src/Blocks/BlockPiston.cpp
+++ b/src/Blocks/BlockPiston.cpp
@@ -85,7 +85,7 @@ int cBlockPistonHandler::FirstPassthroughBlock(int a_PistonX, int a_PistonY, int
 		NIBBLETYPE currMeta;
 		AddPistonDir(a_PistonX, a_PistonY, a_PistonZ, pistonmeta, 1);
 		a_World->GetBlockTypeMeta(a_PistonX, a_PistonY, a_PistonZ, currBlock, currMeta);
-		if (CanBreakPush(currBlock))
+		if (cBlockInfo::IsPistonBreakable(currBlock))
 		{
 			// This block breaks when pushed, extend up to here
 			return ret;
@@ -124,7 +124,7 @@ void cBlockPistonHandler::ExtendPiston(int a_BlockX, int a_BlockY, int a_BlockZ,
 	}
 
 	a_World->BroadcastBlockAction(a_BlockX, a_BlockY, a_BlockZ, 0, pistonMeta, pistonBlock);
-	a_World->BroadcastSoundEffect("tile.piston.out", a_BlockX * 8, a_BlockY * 8, a_BlockZ * 8, 0.5f, 0.7f);
+	a_World->BroadcastSoundEffect("tile.piston.out", (double)a_BlockX, (double)a_BlockY, (double)a_BlockZ, 0.5f, 0.7f);
 
 	// Drop the breakable block in the line, if appropriate:
 	AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, dist + 1);  // "a_Block" now at the breakable / empty block
@@ -198,7 +198,7 @@ void cBlockPistonHandler::RetractPiston(int a_BlockX, int a_BlockY, int a_BlockZ
 	AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, -1);
 	a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, pistonBlock, pistonMeta & ~(8));
 	a_World->BroadcastBlockAction(a_BlockX, a_BlockY, a_BlockZ, 1, pistonMeta & ~(8), pistonBlock);
-	a_World->BroadcastSoundEffect("tile.piston.in", a_BlockX * 8, a_BlockY * 8, a_BlockZ * 8, 0.5f, 0.7f);
+	a_World->BroadcastSoundEffect("tile.piston.in", (double)a_BlockX, (double)a_BlockY, (double)a_BlockZ, 0.5f, 0.7f);
 	AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, 1);
 
 	// Retract the extension, pull block if appropriate
diff --git a/src/Blocks/BlockPiston.h b/src/Blocks/BlockPiston.h
index e6fa48e54..27a44d829 100644
--- a/src/Blocks/BlockPiston.h
+++ b/src/Blocks/BlockPiston.h
@@ -104,6 +104,7 @@ private:
 			case E_BLOCK_ENCHANTMENT_TABLE:
 			case E_BLOCK_END_PORTAL:
 			case E_BLOCK_END_PORTAL_FRAME:
+			// Notice the lack of an E_BLOCK_ENDER_CHEST here; its because ender chests can totally be pushed/pulled in MCS :)
 			case E_BLOCK_FURNACE:
 			case E_BLOCK_LIT_FURNACE:
 			case E_BLOCK_HOPPER:
@@ -113,6 +114,7 @@ private:
 			case E_BLOCK_NOTE_BLOCK:
 			case E_BLOCK_OBSIDIAN:
 			case E_BLOCK_PISTON_EXTENSION:
+			case E_BLOCK_TRAPPED_CHEST:
 			{
 				return false;
 			}
@@ -126,24 +128,10 @@ private:
 		return true;
 	}
 
-	/// Returns true if the specified block can be pushed by a piston and broken / replaced
-	static inline bool CanBreakPush(BLOCKTYPE a_BlockType) { return cBlockInfo::IsPistonBreakable(a_BlockType); }
-
 	/// Returns true if the specified block can be pulled by a sticky piston
 	static inline bool CanPull(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
 	{
-		switch (a_BlockType)
-		{
-			case E_BLOCK_LAVA:
-			case E_BLOCK_STATIONARY_LAVA:
-			case E_BLOCK_STATIONARY_WATER:
-			case E_BLOCK_WATER:
-			{
-				return false;
-			}
-		}
-
-		if (CanBreakPush(a_BlockType))
+		if (cBlockInfo::IsPistonBreakable(a_BlockType))
 		{
 			return false; // CanBreakPush returns true, but we need false to prevent pulling
 		}
diff --git a/src/Blocks/BlockSideways.h b/src/Blocks/BlockSideways.h
index d67c3aa24..5b37efd75 100644
--- a/src/Blocks/BlockSideways.h
+++ b/src/Blocks/BlockSideways.h
@@ -32,36 +32,36 @@ public:
 
 	virtual void ConvertToPickups(cItems & a_Pickups, NIBBLETYPE a_BlockMeta) override
 	{
-		a_Pickups.Add(m_BlockType, 1, a_BlockMeta & 0x3);
+		a_Pickups.Add(m_BlockType, 1, a_BlockMeta & 0x3); // Reset meta
 	}
 
 
-	inline static NIBBLETYPE BlockFaceToMetaData(eBlockFace a_BlockFace, NIBBLETYPE a_WoodMeta)
+	inline static NIBBLETYPE BlockFaceToMetaData(eBlockFace a_BlockFace, NIBBLETYPE a_Meta)
 	{
 		switch (a_BlockFace)
 		{
 			case BLOCK_FACE_YM:
 			case BLOCK_FACE_YP:
 			{
-				return a_WoodMeta; // Top or bottom, just return original
+				return a_Meta; // Top or bottom, just return original
 			}
 
 			case BLOCK_FACE_ZP:
 			case BLOCK_FACE_ZM:
 			{
-				return a_WoodMeta | 0x8; // North or south
+				return a_Meta | 0x8; // North or south
 			}
 
 			case BLOCK_FACE_XP:
 			case BLOCK_FACE_XM:
 			{
-				return a_WoodMeta | 0x4; // East or west
+				return a_Meta | 0x4; // East or west
 			}
 
 			default:
 			{
 				ASSERT(!"Unhandled block face!");
-				return a_WoodMeta | 0xC; // No idea, give a special meta (all sides bark)
+				return a_Meta | 0xC; // No idea, give a special meta
 			}
 		}
 	}
diff --git a/src/Blocks/BroadcastInterface.h b/src/Blocks/BroadcastInterface.h
index b1b450690..fbe72e72f 100644
--- a/src/Blocks/BroadcastInterface.h
+++ b/src/Blocks/BroadcastInterface.h
@@ -7,6 +7,6 @@ public:
 	virtual ~cBroadcastInterface() {}
 	
 	virtual void BroadcastUseBed     (const cEntity & a_Entity, int a_BlockX, int a_BlockY, int a_BlockZ ) = 0;
-	virtual void BroadcastSoundEffect(const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch, const cClientHandle * a_Exclude = NULL) = 0;
+	virtual void BroadcastSoundEffect(const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch, const cClientHandle * a_Exclude = NULL) = 0;
 	virtual void BroadcastEntityAnimation(const cEntity & a_Entity, char a_Animation, const cClientHandle * a_Exclude = NULL) = 0;
 };
diff --git a/src/Chunk.cpp b/src/Chunk.cpp
index 1e80eb61b..8a249ea53 100644
--- a/src/Chunk.cpp
+++ b/src/Chunk.cpp
@@ -1301,6 +1301,7 @@ void cChunk::CreateBlockEntities(void)
 				switch (BlockType)
 				{
 					case E_BLOCK_BEACON:
+					case E_BLOCK_TRAPPED_CHEST:
 					case E_BLOCK_CHEST:
 					case E_BLOCK_COMMAND_BLOCK:
 					case E_BLOCK_DISPENSER:
@@ -1431,6 +1432,7 @@ void cChunk::SetBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_BlockType,
 	switch (a_BlockType)
 	{
 		case E_BLOCK_BEACON:
+		case E_BLOCK_TRAPPED_CHEST:
 		case E_BLOCK_CHEST:
 		case E_BLOCK_COMMAND_BLOCK:
 		case E_BLOCK_DISPENSER:
@@ -2150,7 +2152,7 @@ bool cChunk::DoWithChestAt(int a_BlockX, int a_BlockY, int a_BlockZ, cChestCallb
 		{
 			continue;
 		}
-		if ((*itr)->GetBlockType() != E_BLOCK_CHEST)
+		if (((*itr)->GetBlockType() != E_BLOCK_CHEST) && ((*itr)->GetBlockType() != E_BLOCK_TRAPPED_CHEST)) // Trapped chests use normal chests' handlers
 		{
 			// There is a block entity here, but of different type. No other block entity can be here, so we can safely bail out
 			return false;
@@ -2530,8 +2532,8 @@ cChunk * cChunk::GetRelNeighborChunk(int a_RelX, int a_RelZ)
 	{
 		int BlockX = m_PosX * cChunkDef::Width + a_RelX;
 		int BlockZ = m_PosZ * cChunkDef::Width + a_RelZ;
-		int BlockY, ChunkX, ChunkZ;
-		AbsoluteToRelative(BlockX, BlockY, BlockZ, ChunkX, ChunkZ);
+		int ChunkX, ChunkZ;
+		BlockToChunk(BlockX, BlockZ, ChunkX, ChunkZ);
 		return m_ChunkMap->GetChunkNoLoad(ChunkX, ZERO_CHUNK_Y, ChunkZ);
 	}
 
@@ -2954,7 +2956,7 @@ void cChunk::BroadcastRemoveEntityEffect(const cEntity & a_Entity, int a_EffectI
 
 
 
-void cChunk::BroadcastSoundEffect(const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch, const cClientHandle * a_Exclude)
+void cChunk::BroadcastSoundEffect(const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch, const cClientHandle * a_Exclude)
 {
 	for (cClientHandleList::iterator itr = m_LoadedByClient.begin(); itr != m_LoadedByClient.end(); ++itr )
 	{
@@ -2962,7 +2964,7 @@ void cChunk::BroadcastSoundEffect(const AString & a_SoundName, int a_SrcX, int a
 		{
 			continue;
 		}
-		(*itr)->SendSoundEffect(a_SoundName, a_SrcX, a_SrcY, a_SrcZ, a_Volume, a_Pitch);
+		(*itr)->SendSoundEffect(a_SoundName, a_X, a_Y, a_Z, a_Volume, a_Pitch);
 	}  // for itr - LoadedByClient[]
 }
 
diff --git a/src/Chunk.h b/src/Chunk.h
index 90664b513..dfcfdab0f 100644
--- a/src/Chunk.h
+++ b/src/Chunk.h
@@ -298,7 +298,7 @@ public:
 	void BroadcastEntityAnimation    (const cEntity & a_Entity, char a_Animation, const cClientHandle * a_Exclude = NULL);
 	void BroadcastParticleEffect     (const AString & a_ParticleName, float a_SrcX, float a_SrcY, float a_SrcZ, float a_OffsetX, float a_OffsetY, float a_OffsetZ, float a_ParticleData, int a_ParticleAmmount, cClientHandle * a_Exclude = NULL);
 	void BroadcastRemoveEntityEffect (const cEntity & a_Entity, int a_EffectID, const cClientHandle * a_Exclude = NULL);
-	void BroadcastSoundEffect        (const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch, const cClientHandle * a_Exclude = NULL);  // a_Src coords are Block * 8
+	void BroadcastSoundEffect        (const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch, const cClientHandle * a_Exclude = NULL);
 	void BroadcastSoundParticleEffect(int a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data, const cClientHandle * a_Exclude = NULL);
 	void BroadcastSpawnEntity        (cEntity & a_Entity, const cClientHandle * a_Exclude = NULL);
 	void BroadcastThunderbolt        (int a_BlockX, int a_BlockY, int a_BlockZ, const cClientHandle * a_Exclude = NULL);
diff --git a/src/ChunkMap.cpp b/src/ChunkMap.cpp
index 687c0824f..a12be04cf 100644
--- a/src/ChunkMap.cpp
+++ b/src/ChunkMap.cpp
@@ -647,19 +647,19 @@ void cChunkMap::BroadcastRemoveEntityEffect(const cEntity & a_Entity, int a_Effe
 
 
 
-void cChunkMap::BroadcastSoundEffect(const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch, const cClientHandle * a_Exclude)
+void cChunkMap::BroadcastSoundEffect(const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch, const cClientHandle * a_Exclude)
 {
 	cCSLock Lock(m_CSLayers);
 	int ChunkX, ChunkZ;
 
-	cChunkDef::BlockToChunk(a_SrcX / 8, a_SrcZ / 8, ChunkX, ChunkZ);
+	cChunkDef::BlockToChunk((int)std::floor(a_X), (int)std::floor(a_Z), ChunkX, ChunkZ);
 	cChunkPtr Chunk = GetChunkNoGen(ChunkX, 0, ChunkZ);
 	if (Chunk == NULL)
 	{
 		return;
 	}
 	// It's perfectly legal to broadcast packets even to invalid chunks!
-	Chunk->BroadcastSoundEffect(a_SoundName, a_SrcX, a_SrcY, a_SrcZ, a_Volume, a_Pitch, a_Exclude);
+	Chunk->BroadcastSoundEffect(a_SoundName, a_X, a_Y, a_Z, a_Volume, a_Pitch, a_Exclude);
 }
 
 
@@ -847,7 +847,22 @@ void cChunkMap::WakeUpSimulatorsInArea(int a_MinBlockX, int a_MaxBlockX, int a_M
 
 
 
-void cChunkMap::MarkChunkDirty (int a_ChunkX, int a_ChunkZ)
+void cChunkMap::MarkRedstoneDirty(int a_ChunkX, int a_ChunkZ)
+{
+	cCSLock Lock(m_CSLayers);
+	cChunkPtr Chunk = GetChunkNoGen(a_ChunkX, ZERO_CHUNK_Y, a_ChunkZ);
+	if ((Chunk == NULL) || !Chunk->IsValid())
+	{
+		return;
+	}
+	Chunk->SetIsRedstoneDirty(true);
+}
+
+
+
+
+
+void cChunkMap::MarkChunkDirty(int a_ChunkX, int a_ChunkZ, bool a_MarkRedstoneDirty)
 {
 	cCSLock Lock(m_CSLayers);
 	cChunkPtr Chunk = GetChunkNoGen(a_ChunkX, ZERO_CHUNK_Y, a_ChunkZ);
@@ -856,6 +871,10 @@ void cChunkMap::MarkChunkDirty (int a_ChunkX, int a_ChunkZ)
 		return;
 	}
 	Chunk->MarkDirty();
+	if (a_MarkRedstoneDirty)
+	{
+		Chunk->SetIsRedstoneDirty(true);
+	}
 }
 
 
@@ -1259,7 +1278,7 @@ void cChunkMap::SetBlockMeta(int a_BlockX, int a_BlockY, int a_BlockZ, NIBBLETYP
 
 
 
-void cChunkMap::SetBlock(cWorldInterface & a_WorldInterface, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, BLOCKTYPE a_BlockMeta, bool a_SendToClients)
+void cChunkMap::SetBlock(cWorldInterface & a_WorldInterface, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, bool a_SendToClients)
 {
 	cChunkInterface ChunkInterface(this);
 	if (a_BlockType == E_BLOCK_AIR)
@@ -1284,7 +1303,7 @@ void cChunkMap::SetBlock(cWorldInterface & a_WorldInterface, int a_BlockX, int a
 
 
 
-void cChunkMap::QueueSetBlock(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, BLOCKTYPE a_BlockMeta, Int64 a_Tick, BLOCKTYPE a_PreviousBlockType)
+void cChunkMap::QueueSetBlock(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Int64 a_Tick, BLOCKTYPE a_PreviousBlockType)
 {
 	int ChunkX, ChunkZ, X = a_BlockX, Y = a_BlockY, Z = a_BlockZ;
 	cChunkDef::AbsoluteToRelative(X, Y, Z, ChunkX, ChunkZ);
@@ -1530,7 +1549,7 @@ void cChunkMap::SendBlockTo(int a_X, int a_Y, int a_Z, cPlayer * a_Player)
 	
 	cCSLock Lock(m_CSLayers);
 	cChunkPtr Chunk = GetChunk(ChunkX, ZERO_CHUNK_Y, ChunkZ);
-	if (Chunk->IsValid())
+	if ((Chunk != NULL) && (Chunk->IsValid()))
 	{
 		Chunk->SendBlockTo(a_X, a_Y, a_Z, a_Player->GetClientHandle());
 	}
diff --git a/src/ChunkMap.h b/src/ChunkMap.h
index b8870dfca..ef9b76e3f 100644
--- a/src/ChunkMap.h
+++ b/src/ChunkMap.h
@@ -85,7 +85,7 @@ public:
 	void BroadcastEntityAnimation(const cEntity & a_Entity, char a_Animation, const cClientHandle * a_Exclude = NULL);
 	void BroadcastParticleEffect(const AString & a_ParticleName, float a_SrcX, float a_SrcY, float a_SrcZ, float a_OffsetX, float a_OffsetY, float a_OffsetZ, float a_ParticleData, int a_ParticleAmmount, cClientHandle * a_Exclude = NULL);
 	void BroadcastRemoveEntityEffect (const cEntity & a_Entity, int a_EffectID, const cClientHandle * a_Exclude = NULL);
-	void BroadcastSoundEffect(const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch, const cClientHandle * a_Exclude = NULL);   // a_Src coords are Block * 8
+	void BroadcastSoundEffect(const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch, const cClientHandle * a_Exclude = NULL);
 	void BroadcastSoundParticleEffect(int a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data, const cClientHandle * a_Exclude = NULL);
 	void BroadcastSpawnEntity(cEntity & a_Entity, const cClientHandle * a_Exclude = NULL);
 	void BroadcastThunderbolt(int a_BlockX, int a_BlockY, int a_BlockZ, const cClientHandle * a_Exclude = NULL);
@@ -106,7 +106,8 @@ public:
 	/** Wakes up the simulators for the specified area of blocks */
 	void WakeUpSimulatorsInArea(int a_MinBlockX, int a_MaxBlockX, int a_MinBlockY, int a_MaxBlockY, int a_MinBlockZ, int a_MaxBlockZ);
 
-	void MarkChunkDirty     (int a_ChunkX, int a_ChunkZ);
+	void MarkRedstoneDirty  (int a_ChunkX, int a_ChunkZ);
+	void MarkChunkDirty     (int a_ChunkX, int a_ChunkZ, bool a_MarkRedstoneDirty = false);
 	void MarkChunkSaving    (int a_ChunkX, int a_ChunkZ);
 	void MarkChunkSaved     (int a_ChunkX, int a_ChunkZ);
 	
@@ -153,9 +154,9 @@ public:
 	NIBBLETYPE GetBlockMeta      (int a_BlockX, int a_BlockY, int a_BlockZ);
 	NIBBLETYPE GetBlockSkyLight  (int a_BlockX, int a_BlockY, int a_BlockZ);
 	NIBBLETYPE GetBlockBlockLight(int a_BlockX, int a_BlockY, int a_BlockZ);
-	void       SetBlockMeta      (int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockMeta);
-	void       SetBlock          (cWorldInterface & a_WorldInterface, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, BLOCKTYPE a_BlockMeta, bool a_SendToClients = true);
-	void       QueueSetBlock(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, BLOCKTYPE a_BlockMeta, Int64 a_Tick, BLOCKTYPE a_PreviousBlockType = E_BLOCK_AIR);
+	void       SetBlockMeta      (int a_BlockX, int a_BlockY, int a_BlockZ, NIBBLETYPE a_BlockMeta);
+	void       SetBlock          (cWorldInterface & a_WorldInterface, int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, bool a_SendToClients = true);
+	void       QueueSetBlock(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, Int64 a_Tick, BLOCKTYPE a_PreviousBlockType = E_BLOCK_AIR);
 	bool       GetBlockTypeMeta  (int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta);
 	bool       GetBlockInfo      (int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_Meta, NIBBLETYPE & a_SkyLight, NIBBLETYPE & a_BlockLight);
 
diff --git a/src/ClientHandle.cpp b/src/ClientHandle.cpp
index 6ee9d9e1d..4062d1f25 100644
--- a/src/ClientHandle.cpp
+++ b/src/ClientHandle.cpp
@@ -40,9 +40,6 @@
 /** Maximum number of block change interactions a player can perform per tick - exceeding this causes a kick */
 #define MAX_BLOCK_CHANGE_INTERACTIONS 20
 
-/** How many ticks before the socket is closed after the client is destroyed (#31) */
-static const int TICKS_BEFORE_CLOSE = 20;
-
 
 
 
@@ -79,7 +76,6 @@ cClientHandle::cClientHandle(const cSocket * a_Socket, int a_ViewDistance) :
 	m_PingID(1),
 	m_BlockDigAnimStage(-1),
 	m_HasStartedDigging(false),
-	m_TicksSinceDestruction(0),
 	m_State(csConnected),
 	m_ShouldCheckDownloaded(false),
 	m_NumExplosionsThisTick(0),
@@ -104,7 +100,7 @@ cClientHandle::cClientHandle(const cSocket * a_Socket, int a_ViewDistance) :
 
 cClientHandle::~cClientHandle()
 {
-	ASSERT(m_State >= csDestroyedWaiting);  // Has Destroy() been called?
+	ASSERT(m_State == csDestroyed);  // Has Destroy() been called?
 	
 	LOGD("Deleting client \"%s\" at %p", GetUsername().c_str(), this);
 
@@ -169,7 +165,7 @@ void cClientHandle::Destroy(void)
 		RemoveFromAllChunks();
 		m_Player->GetWorld()->RemoveClientFromChunkSender(this);
 	}
-	m_State = csDestroyedWaiting;
+	m_State = csDestroyed;
 }
 
 
@@ -1366,7 +1362,7 @@ void cClientHandle::HandlePlaceBlock(int a_BlockX, int a_BlockY, int a_BlockZ, e
 	NewBlock->OnPlacedByPlayer(ChunkInterface,*World, m_Player, a_BlockX, a_BlockY, a_BlockZ, a_BlockFace, a_CursorX, a_CursorY, a_CursorZ, BlockType, BlockMeta);
 	
 	// Step sound with 0.8f pitch is used as block placement sound
-	World->BroadcastSoundEffect(NewBlock->GetStepSound(), a_BlockX * 8, a_BlockY * 8, a_BlockZ * 8, 1.0f, 0.8f);
+	World->BroadcastSoundEffect(NewBlock->GetStepSound(), (double)a_BlockX, (double)a_BlockY, (double)a_BlockZ, 1.0f, 0.8f);
 	cRoot::Get()->GetPluginManager()->CallHookPlayerPlacedBlock(*m_Player, a_BlockX, a_BlockY, a_BlockZ, a_BlockFace, a_CursorX, a_CursorY, a_CursorZ, BlockType, BlockMeta);
 }
 
@@ -1824,18 +1820,7 @@ bool cClientHandle::CheckBlockInteractionsRate(void)
 
 
 void cClientHandle::Tick(float a_Dt)
-{
-	// Handle clients that are waiting for final close while destroyed:
-	if (m_State == csDestroyedWaiting)
-	{
-		m_TicksSinceDestruction += 1;  // This field is misused for the timeout counting
-		if (m_TicksSinceDestruction > TICKS_BEFORE_CLOSE)
-		{
-			m_State = csDestroyed;
-		}
-		return;
-	}
-	
+{	
 	// Process received network data:
 	AString IncomingData;
 	{
@@ -1901,15 +1886,7 @@ void cClientHandle::Tick(float a_Dt)
 
 
 void cClientHandle::ServerTick(float a_Dt)
-{
-	// Handle clients that are waiting for final close while destroyed:
-	if (m_State == csDestroyedWaiting)
-	{
-		// Do not wait while the client is not in the world, simply cut them off.
-		m_State = csDestroyed;
-		return;
-	}
-	
+{	
 	// Process received network data:
 	AString IncomingData;
 	{
@@ -2450,9 +2427,9 @@ void cClientHandle::SendDisplayObjective(const AString & a_Objective, cScoreboar
 
 
 
-void cClientHandle::SendSoundEffect(const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch)
+void cClientHandle::SendSoundEffect(const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch)
 {
-	m_Protocol->SendSoundEffect(a_SoundName, a_SrcX, a_SrcY, a_SrcZ, a_Volume, a_Pitch);
+	m_Protocol->SendSoundEffect(a_SoundName, a_X, a_Y, a_Z, a_Volume, a_Pitch);
 }
 
 
diff --git a/src/ClientHandle.h b/src/ClientHandle.h
index 6f2c86b27..922740b11 100644
--- a/src/ClientHandle.h
+++ b/src/ClientHandle.h
@@ -162,7 +162,7 @@ public:
 	void SendScoreboardObjective (const AString & a_Name, const AString & a_DisplayName, Byte a_Mode);
 	void SendScoreUpdate         (const AString & a_Objective, const AString & a_Player, cObjective::Score a_Score, Byte a_Mode);
 	void SendDisplayObjective    (const AString & a_Objective, cScoreboard::eDisplaySlot a_Display);
-	void SendSoundEffect         (const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch);  // a_Src coords are Block * 8
+	void SendSoundEffect         (const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch);  // tolua_export
 	void SendSoundParticleEffect (int a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data);
 	void SendSpawnFallingBlock   (const cFallingBlock & a_FallingBlock);
 	void SendSpawnMob            (const cMonster & a_Mob);
@@ -325,9 +325,6 @@ private:
 	int m_LastDigBlockX;
 	int m_LastDigBlockY;
 	int m_LastDigBlockZ;
-	
-	/** Used while csDestroyedWaiting for counting the ticks until the connection is closed */
-	int m_TicksSinceDestruction;
 
 	enum eState
 	{
@@ -338,7 +335,6 @@ private:
  		csConfirmingPos,     ///< The client has been sent the position packet, waiting for them to repeat the position back
 		csPlaying,           ///< Normal gameplay
 		csDestroying,        ///< The client is being destroyed, don't queue any more packets / don't add to chunks
-		csDestroyedWaiting,  ///< The client has been destroyed, but is still kept so that the Kick packet is delivered (#31)
 		csDestroyed,         ///< The client has been destroyed, the destructor is to be called from the owner thread
 		
 		// TODO: Add Kicking here as well
diff --git a/src/Entities/ArrowEntity.cpp b/src/Entities/ArrowEntity.cpp
index d59088e72..a3a1667e4 100644
--- a/src/Entities/ArrowEntity.cpp
+++ b/src/Entities/ArrowEntity.cpp
@@ -79,8 +79,8 @@ void cArrowEntity::OnHitSolidBlock(const Vector3d & a_HitPos, eBlockFace a_HitFa
 	}
 
 	Vector3d Hit = a_HitPos;
-	Vector3d SinkMovement = (GetSpeed() / 800);
-	Hit += (SinkMovement * 0.01) / SinkMovement.Length(); // Make arrow sink into block a centimetre so it lodges (but not to far so it goes black clientside)
+	Vector3d SinkMovement = (GetSpeed() / 1000);
+	Hit += SinkMovement * (0.0005 / SinkMovement.Length()); // Make arrow sink into block a centimetre so it lodges (but not to far so it goes black clientside)
 
 	super::OnHitSolidBlock(Hit, a_HitFace);
 	Vector3i BlockHit = Hit.Floor();
@@ -89,7 +89,7 @@ void cArrowEntity::OnHitSolidBlock(const Vector3d & a_HitPos, eBlockFace a_HitFa
 	m_HitBlockPos = Vector3i(X, Y, Z);
 	
 	// Broadcast arrow hit sound
-	m_World->BroadcastSoundEffect("random.bowhit", X * 8, Y * 8, Z * 8, 0.5f, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
+	m_World->BroadcastSoundEffect("random.bowhit", (double)X, (double)Y, (double)Z, 0.5f, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
 }
 
 
@@ -106,7 +106,7 @@ void cArrowEntity::OnHitEntity(cEntity & a_EntityHit, const Vector3d & a_HitPos)
 	a_EntityHit.TakeDamage(dtRangedAttack, this, Damage, 1);
 	
 	// Broadcast successful hit sound
-	GetWorld()->BroadcastSoundEffect("random.successful_hit", (int)GetPosX() * 8, (int)GetPosY() * 8, (int)GetPosZ() * 8, 0.5, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
+	GetWorld()->BroadcastSoundEffect("random.successful_hit", GetPosX(), GetPosY(), GetPosZ(), 0.5, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
 	
 	Destroy();
 }
@@ -131,7 +131,7 @@ void cArrowEntity::CollectedBy(cPlayer * a_Dest)
 		}
 
 		GetWorld()->BroadcastCollectEntity(*this, *a_Dest);
-		GetWorld()->BroadcastSoundEffect("random.pop", (int)GetPosX() * 8, (int)GetPosY() * 8, (int)GetPosZ() * 8, 0.5, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
+		GetWorld()->BroadcastSoundEffect("random.pop", GetPosX(), GetPosY(), GetPosZ(), 0.5, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
 		m_bIsCollected = true;
 	}
 }
diff --git a/src/Entities/ExpOrb.cpp b/src/Entities/ExpOrb.cpp
index 10f79aedc..e437c24ef 100644
--- a/src/Entities/ExpOrb.cpp
+++ b/src/Entities/ExpOrb.cpp
@@ -56,7 +56,7 @@ void cExpOrb::Tick(float a_Dt, cChunk & a_Chunk)
 			LOGD("Player %s picked up an ExpOrb. His reward is %i", a_ClosestPlayer->GetName().c_str(), m_Reward);
 			a_ClosestPlayer->DeltaExperience(m_Reward);
 			
-			m_World->BroadcastSoundEffect("random.orb", (int)(GetPosX() * 8), (int)(GetPosY() * 8), (int)(GetPosZ() * 8), 0.5f, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
+			m_World->BroadcastSoundEffect("random.orb", GetPosX(), GetPosY(), GetPosZ(), 0.5f, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
 			
 			Destroy();
 		}
diff --git a/src/Entities/ExpOrb.h b/src/Entities/ExpOrb.h
index e76274ac9..2cd4ef31f 100644
--- a/src/Entities/ExpOrb.h
+++ b/src/Entities/ExpOrb.h
@@ -11,7 +11,7 @@
 class cExpOrb :
 	public cEntity
 {
-	typedef cExpOrb super;
+	typedef cEntity super;
 	
 public:
 	// tolua_end
diff --git a/src/Entities/Floater.cpp b/src/Entities/Floater.cpp
index b910c3769..d49893020 100644
--- a/src/Entities/Floater.cpp
+++ b/src/Entities/Floater.cpp
@@ -134,7 +134,7 @@ void cFloater::Tick(float a_Dt, cChunk & a_Chunk)
 		{
 			if (m_CountDownTime <= 0)
 			{
-				m_World->BroadcastSoundEffect("random.splash", (int) floor(GetPosX() * 8), (int) floor(GetPosY() * 8), (int) floor(GetPosZ() * 8), 1, 1);
+				m_World->BroadcastSoundEffect("random.splash", GetPosX(), GetPosY(), GetPosZ(), 1, 1);
 				SetPosY(GetPosY() - 1);
 				m_CanPickupItem = true;
 				m_PickupCountDown = 20;
diff --git a/src/Entities/Pickup.cpp b/src/Entities/Pickup.cpp
index 24fa591da..bae1485d4 100644
--- a/src/Entities/Pickup.cpp
+++ b/src/Entities/Pickup.cpp
@@ -226,7 +226,7 @@ bool cPickup::CollectedBy(cPlayer * a_Dest)
 		m_Item.m_ItemCount -= NumAdded;
 		m_World->BroadcastCollectEntity(*this, *a_Dest);
 		// Also send the "pop" sound effect with a somewhat random pitch (fast-random using EntityID ;)
-		m_World->BroadcastSoundEffect("random.pop",(int)GetPosX() * 8, (int)GetPosY() * 8, (int)GetPosZ() * 8, 0.5, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
+		m_World->BroadcastSoundEffect("random.pop", GetPosX(), GetPosY(), GetPosZ(), 0.5, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
 		if (m_Item.m_ItemCount <= 0)
 		{
 			// All of the pickup has been collected, schedule the pickup for destroying
diff --git a/src/Entities/Player.cpp b/src/Entities/Player.cpp
index baa3fe7f6..23fd6522a 100644
--- a/src/Entities/Player.cpp
+++ b/src/Entities/Player.cpp
@@ -1917,7 +1917,7 @@ void cPlayer::UseEquippedItem(void)
 
 	if (GetInventory().DamageEquippedItem())
 	{
-		m_World->BroadcastSoundEffect("random.break", (int)GetPosX() * 8, (int)GetPosY() * 8, (int)GetPosZ() * 8, 0.5f, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
+		m_World->BroadcastSoundEffect("random.break", GetPosX(), GetPosY(), GetPosZ(), 0.5f, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
 	}
 }
 
diff --git a/src/Entities/ProjectileEntity.cpp b/src/Entities/ProjectileEntity.cpp
index 9c1161ac3..019ebeaa5 100644
--- a/src/Entities/ProjectileEntity.cpp
+++ b/src/Entities/ProjectileEntity.cpp
@@ -244,7 +244,7 @@ cProjectileEntity::cProjectileEntity(eKind a_Kind, cEntity * a_Creator, const Ve
 
 
 
-cProjectileEntity * cProjectileEntity::Create(eKind a_Kind, cEntity * a_Creator, double a_X, double a_Y, double a_Z, const cItem & a_Item, const Vector3d * a_Speed)
+cProjectileEntity * cProjectileEntity::Create(eKind a_Kind, cEntity * a_Creator, double a_X, double a_Y, double a_Z, const cItem * a_Item, const Vector3d * a_Speed)
 {
 	Vector3d Speed;
 	if (a_Speed != NULL)
@@ -264,12 +264,13 @@ cProjectileEntity * cProjectileEntity::Create(eKind a_Kind, cEntity * a_Creator,
 		case pkWitherSkull:   return new cWitherSkullEntity     (a_Creator, a_X, a_Y, a_Z, Speed);
 		case pkFirework:
 		{
-			if (a_Item.m_FireworkItem.m_Colours.empty())
+			ASSERT(a_Item != NULL);
+			if (a_Item->m_FireworkItem.m_Colours.empty())
 			{
 				return NULL;
 			}
 
-			return new cFireworkEntity(a_Creator, a_X, a_Y, a_Z, a_Item);
+			return new cFireworkEntity(a_Creator, a_X, a_Y, a_Z, *a_Item);
 		}
 	}
 	
diff --git a/src/Entities/ProjectileEntity.h b/src/Entities/ProjectileEntity.h
index 7b38169e2..14cee1272 100644
--- a/src/Entities/ProjectileEntity.h
+++ b/src/Entities/ProjectileEntity.h
@@ -46,7 +46,7 @@ public:
 	cProjectileEntity(eKind a_Kind, cEntity * a_Creator, double a_X, double a_Y, double a_Z, double a_Width, double a_Height);
 	cProjectileEntity(eKind a_Kind, cEntity * a_Creator, const Vector3d & a_Pos, const Vector3d & a_Speed, double a_Width, double a_Height);
 	
-	static cProjectileEntity * Create(eKind a_Kind, cEntity * a_Creator, double a_X, double a_Y, double a_Z, const cItem & a_Item, const Vector3d * a_Speed = NULL);
+	static cProjectileEntity * Create(eKind a_Kind, cEntity * a_Creator, double a_X, double a_Y, double a_Z, const cItem * a_Item, const Vector3d * a_Speed = NULL);
 	
 	/// Called by the physics blocktracer when the entity hits a solid block, the hit position and the face hit (BLOCK_FACE_) is given
 	virtual void OnHitSolidBlock(const Vector3d & a_HitPos, eBlockFace a_HitFace);
diff --git a/src/Generating/ChunkDesc.cpp b/src/Generating/ChunkDesc.cpp
index 7711723fc..e4b305022 100644
--- a/src/Generating/ChunkDesc.cpp
+++ b/src/Generating/ChunkDesc.cpp
@@ -290,7 +290,7 @@ void cChunkDesc::ReadBlockArea(cBlockArea & a_Dest, int a_MinRelX, int a_MaxRelX
 		LOGWARNING("%s: MaxRelX less than zero, adjusting to zero", __FUNCTION__);
 		a_MaxRelX = 0;
 	}
-	else if (a_MinRelX >= cChunkDef::Width)
+	else if (a_MaxRelX >= cChunkDef::Width)
 	{
 		LOGWARNING("%s: MaxRelX more than chunk width, adjusting to chunk width", __FUNCTION__);
 		a_MaxRelX = cChunkDef::Width - 1;
@@ -311,7 +311,7 @@ void cChunkDesc::ReadBlockArea(cBlockArea & a_Dest, int a_MinRelX, int a_MaxRelX
 		LOGWARNING("%s: MaxRelY less than zero, adjusting to zero", __FUNCTION__);
 		a_MaxRelY = 0;
 	}
-	else if (a_MinRelY >= cChunkDef::Height)
+	else if (a_MaxRelY >= cChunkDef::Height)
 	{
 		LOGWARNING("%s: MaxRelY more than chunk height, adjusting to chunk height", __FUNCTION__);
 		a_MaxRelY = cChunkDef::Height - 1;
@@ -332,7 +332,7 @@ void cChunkDesc::ReadBlockArea(cBlockArea & a_Dest, int a_MinRelX, int a_MaxRelX
 		LOGWARNING("%s: MaxRelZ less than zero, adjusting to zero", __FUNCTION__);
 		a_MaxRelZ = 0;
 	}
-	else if (a_MinRelZ >= cChunkDef::Width)
+	else if (a_MaxRelZ >= cChunkDef::Width)
 	{
 		LOGWARNING("%s: MaxRelZ more than chunk width, adjusting to chunk width", __FUNCTION__);
 		a_MaxRelZ = cChunkDef::Width - 1;
diff --git a/src/Generating/GridStructGen.cpp b/src/Generating/GridStructGen.cpp
index 95f8c38bc..fd1d5e49f 100644
--- a/src/Generating/GridStructGen.cpp
+++ b/src/Generating/GridStructGen.cpp
@@ -44,6 +44,7 @@ cGridStructGen::cGridStructGen(
 	int a_MaxStructureSizeX, int a_MaxStructureSizeZ,
 	size_t a_MaxCacheSize
 ) :
+	m_Seed(a_Seed),
 	m_Noise(a_Seed),
 	m_GridSizeX(a_GridSizeX),
 	m_GridSizeZ(a_GridSizeZ),
@@ -53,6 +54,16 @@ cGridStructGen::cGridStructGen(
 	m_MaxStructureSizeZ(a_MaxStructureSizeZ),
 	m_MaxCacheSize(a_MaxCacheSize)
 {
+	if (m_GridSizeX == 0)
+	{
+		LOG("Grid Size cannot be zero, setting to 1");
+		m_GridSizeX = 1;
+	}
+	if (m_GridSizeZ == 0)
+	{
+		LOG("Grid Size cannot be zero, setting to 1");
+		m_GridSizeZ = 1;
+	}
 	size_t NumStructuresPerQuery = (size_t)(((m_MaxStructureSizeX + m_MaxOffsetX) / m_GridSizeX + 1) * ((m_MaxStructureSizeZ + m_MaxOffsetZ) / m_GridSizeZ + 1));
 	if (NumStructuresPerQuery > m_MaxCacheSize)
 	{
diff --git a/src/Items/ItemBow.h b/src/Items/ItemBow.h
index 185f17fee..e7a77dcbc 100644
--- a/src/Items/ItemBow.h
+++ b/src/Items/ItemBow.h
@@ -70,7 +70,7 @@ public:
 			return;
 		}
 
-		a_Player->GetWorld()->BroadcastSoundEffect("random.bow", (int)a_Player->GetPosX() * 8, (int)a_Player->GetPosY() * 8, (int)a_Player->GetPosZ() * 8, 0.5, (float)Force);
+		a_Player->GetWorld()->BroadcastSoundEffect("random.bow", a_Player->GetPosX(), a_Player->GetPosY(), a_Player->GetPosZ(), 0.5, (float)Force);
 		if (!a_Player->IsGameModeCreative())
 		{
 			a_Player->UseEquippedItem();
diff --git a/src/Items/ItemBucket.h b/src/Items/ItemBucket.h
index 68c89dd85..84835c021 100644
--- a/src/Items/ItemBucket.h
+++ b/src/Items/ItemBucket.h
@@ -41,7 +41,7 @@ public:
 	
 	bool ScoopUpFluid(cWorld * a_World, cPlayer * a_Player, const cItem & a_Item, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace)
 	{
-		if (a_BlockFace > 0)
+		if (a_BlockFace != BLOCK_FACE_NONE)
 		{
 			return false;
 		}
@@ -95,29 +95,15 @@ public:
 
 	bool PlaceFluid(cWorld * a_World, cPlayer * a_Player, const cItem & a_Item, int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_BlockFace, BLOCKTYPE a_FluidBlock)
 	{			
-		if (a_BlockFace < 0)
+		if (a_BlockFace != BLOCK_FACE_NONE)
 		{
 			return false;
 		}
 		
-		BLOCKTYPE CurrentBlock = a_World->GetBlock(a_BlockX, a_BlockY, a_BlockZ);
-		bool CanWashAway = cFluidSimulator::CanWashAway(CurrentBlock);
-		if (!CanWashAway)
+		BLOCKTYPE CurrentBlock;
+		Vector3i BlockPos;
+		if (!GetPlacementCoordsFromTrace(a_World, a_Player, BlockPos, CurrentBlock))
 		{
-			// The block pointed at cannot be washed away, so put fluid on top of it / on its sides
-			AddFaceDirection(a_BlockX, a_BlockY, a_BlockZ, a_BlockFace);
-			CurrentBlock = a_World->GetBlock(a_BlockX, a_BlockY, a_BlockZ);
-		}
-		if (
-			!CanWashAway && 
-			(CurrentBlock != E_BLOCK_AIR) && 
-			(CurrentBlock != E_BLOCK_WATER) &&
-			(CurrentBlock != E_BLOCK_STATIONARY_WATER) &&
-			(CurrentBlock != E_BLOCK_LAVA) &&
-			(CurrentBlock != E_BLOCK_STATIONARY_LAVA)
-		)
-		{
-			// Cannot place water here
 			return false;
 		}
 		
@@ -138,7 +124,7 @@ public:
 		}
 		
 		// Wash away anything that was there prior to placing:
-		if (CanWashAway)
+		if (cFluidSimulator::CanWashAway(CurrentBlock))
 		{
 			cBlockHandler * Handler = BlockHandler(CurrentBlock);
 			if (Handler->DoesDropOnUnsuitable())
@@ -149,13 +135,13 @@ public:
 			}
 		}
 
-		a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, a_FluidBlock, 0);
+		a_World->SetBlock(BlockPos.x, BlockPos.y, BlockPos.z, a_FluidBlock, 0);
 		
 		return true;
 	}
 
 
-	bool GetBlockFromTrace(cWorld * a_World, cPlayer * a_Player, Vector3i & BlockPos)
+	bool GetBlockFromTrace(cWorld * a_World, cPlayer * a_Player, Vector3i & a_BlockPos)
 	{
 		class cCallbacks :
 			public cBlockTracer::cCallbacks
@@ -198,8 +184,49 @@ public:
 		}
 
 
-		BlockPos.Set(Callbacks.m_Pos.x, Callbacks.m_Pos.y, Callbacks.m_Pos.z);
+		a_BlockPos = Callbacks.m_Pos;
 		return true;
 	}
+	
+	
+	bool GetPlacementCoordsFromTrace(cWorld * a_World, cPlayer * a_Player, Vector3i & a_BlockPos, BLOCKTYPE & a_BlockType)
+	{
+		class cCallbacks :
+			public cBlockTracer::cCallbacks
+		{
+		public:
+			Vector3i   m_Pos;
+			BLOCKTYPE  m_ReplacedBlock;
+			
+			virtual bool OnNextBlock(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, char a_EntryFace) override
+			{
+				if (a_BlockType != E_BLOCK_AIR)
+				{
+					m_ReplacedBlock = a_BlockType;
+					if (!cFluidSimulator::CanWashAway(a_BlockType) && !IsBlockLiquid(a_BlockType))
+					{
+						AddFaceDirection(a_BlockX, a_BlockY, a_BlockZ, (eBlockFace)a_EntryFace);  // Was an unwashawayable block, can't overwrite it!
+					}
+					m_Pos.Set(a_BlockX, a_BlockY, a_BlockZ);  // (Block could be washed away, replace it)
+					return true;  // Abort tracing
+				}				
+				return false;
+			}
+		} Callbacks;
+
+		cLineBlockTracer Tracer(*a_World, Callbacks);
+		Vector3d Start(a_Player->GetEyePosition() + a_Player->GetLookVector());
+		Vector3d End(a_Player->GetEyePosition() + a_Player->GetLookVector() * 5);		
+
+		// cTracer::Trace returns true when whole line was traversed. By returning true when we hit something, we ensure that this never happens if liquid could be placed
+		// Use this to judge whether the position is valid
+		if (!Tracer.Trace(Start.x, Start.y, Start.z, End.x, End.y, End.z))
+		{
+			a_BlockPos = Callbacks.m_Pos;
+			a_BlockType = Callbacks.m_ReplacedBlock;
+			return true;
+		}
 
+		return false;		
+	}
 };
diff --git a/src/Items/ItemLighter.h b/src/Items/ItemLighter.h
index 32f49cab6..9f98bf85f 100644
--- a/src/Items/ItemLighter.h
+++ b/src/Items/ItemLighter.h
@@ -52,8 +52,8 @@ public:
 			case E_BLOCK_TNT:
 			{
 				// Activate the TNT:
-				a_World->BroadcastSoundEffect("game.tnt.primed", a_BlockX * 8, a_BlockY * 8, a_BlockZ * 8, 1.0f, 1.0f);
-				a_World->SetBlock(a_BlockX,a_BlockY,a_BlockZ, E_BLOCK_AIR, 0);
+				a_World->BroadcastSoundEffect("game.tnt.primed", (double)a_BlockX, (double)a_BlockY, (double)a_BlockZ, 1.0f, 1.0f);
+				a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_AIR, 0);
 				a_World->SpawnPrimedTNT(a_BlockX + 0.5, a_BlockY + 0.5, a_BlockZ + 0.5);  // 80 ticks to boom
 				break;
 			}
@@ -68,7 +68,7 @@ public:
 				if (a_World->GetBlock(a_BlockX, a_BlockY, a_BlockZ) == E_BLOCK_AIR)
 				{
 					a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_FIRE, 0);
-					a_World->BroadcastSoundEffect("fire.ignite", a_BlockX * 8, a_BlockY * 8, a_BlockZ * 8, 1.0F, 1.04F);
+					a_World->BroadcastSoundEffect("fire.ignite", (double)a_BlockX, (double)a_BlockY, (double)a_BlockZ, 1.0F, 1.04F);
 					break;
 				}
 			}
diff --git a/src/Items/ItemThrowable.h b/src/Items/ItemThrowable.h
index 25935a1bc..c151c5d3a 100644
--- a/src/Items/ItemThrowable.h
+++ b/src/Items/ItemThrowable.h
@@ -33,16 +33,9 @@ public:
 
 		// Play sound
 		cFastRandom Random;
-		a_World->BroadcastSoundEffect(
-			"random.bow",
-			(int)std::floor(a_Player->GetPosX() * 8.0),
-			(int)std::floor((a_Player->GetPosY() - a_Player->GetHeight()) * 8.0),
-			(int)std::floor(a_Player->GetPosZ() * 8.0),
-			0.5F,
-			0.4F / (Random.NextFloat(1.0F) * 0.4F + 0.8F)
-		);
-
-		if (a_World->CreateProjectile(Pos.x, Pos.y, Pos.z, m_ProjectileKind, a_Player, a_Player->GetEquippedItem(), &Speed) < 0)
+		a_World->BroadcastSoundEffect("random.bow", a_Player->GetPosX(), a_Player->GetPosY() - a_Player->GetHeight(), a_Player->GetPosZ(), 0.5f, 0.4f / (Random.NextFloat(1.0f) * 0.4f + 0.8f));
+
+		if (a_World->CreateProjectile(Pos.x, Pos.y, Pos.z, m_ProjectileKind, a_Player, &a_Player->GetEquippedItem(), &Speed) < 0)
 		{
 			return false;
 		}
@@ -142,7 +135,7 @@ public:
 			return false;
 		}
 
-		if (a_World->CreateProjectile(a_BlockX + 0.5, a_BlockY + 1, a_BlockZ + 0.5, m_ProjectileKind, a_Player, a_Player->GetEquippedItem()) < 0)
+		if (a_World->CreateProjectile(a_BlockX + 0.5, a_BlockY + 1, a_BlockZ + 0.5, m_ProjectileKind, a_Player, &a_Player->GetEquippedItem()) < 0)
 		{
 			return false;
 		}
diff --git a/src/Map.cpp b/src/Map.cpp
index 7721baa70..8f205a606 100644
--- a/src/Map.cpp
+++ b/src/Map.cpp
@@ -200,8 +200,8 @@ bool cMap::UpdatePixel(unsigned int a_X, unsigned int a_Z)
 	int BlockX = m_CenterX + ((a_X - (m_Width  / 2)) * PixelWidth);
 	int BlockZ = m_CenterZ + ((a_Z - (m_Height / 2)) * PixelWidth);
 
-	int ChunkX, ChunkY, ChunkZ;
-	m_World->BlockToChunk(BlockX, 0, BlockZ, ChunkX, ChunkY, ChunkZ);
+	int ChunkX, ChunkZ;
+	cChunkDef::BlockToChunk(BlockX, BlockZ, ChunkX, ChunkZ);
 
 	int RelX = BlockX - (ChunkX * cChunkDef::Width);
 	int RelZ = BlockZ - (ChunkZ * cChunkDef::Width);
diff --git a/src/Mobs/Creeper.cpp b/src/Mobs/Creeper.cpp
index b9041bd5a..8ab09a4c5 100644
--- a/src/Mobs/Creeper.cpp
+++ b/src/Mobs/Creeper.cpp
@@ -125,7 +125,7 @@ void cCreeper::Attack(float a_Dt)
 
 	if (!m_bIsBlowing)
 	{
-		m_World->BroadcastSoundEffect("game.tnt.primed", (int)GetPosX() * 8, (int)GetPosY() * 8, (int)GetPosZ() * 8, 1.f, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
+		m_World->BroadcastSoundEffect("game.tnt.primed", GetPosX(), GetPosY(), GetPosZ(), 1.f, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
 		m_bIsBlowing = true;
 		m_World->BroadcastEntityMetadata(*this);
 	}
@@ -143,7 +143,7 @@ void cCreeper::OnRightClicked(cPlayer & a_Player)
 		{
 			a_Player.UseEquippedItem();
 		}
-		m_World->BroadcastSoundEffect("game.tnt.primed", (int)GetPosX() * 8, (int)GetPosY() * 8, (int)GetPosZ() * 8, 1.f, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
+		m_World->BroadcastSoundEffect("game.tnt.primed", GetPosX(), GetPosY(), GetPosZ(), 1.f, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
 		m_bIsBlowing = true;
 		m_World->BroadcastEntityMetadata(*this);
 		m_BurnedWithFlintAndSteel = true;
diff --git a/src/Mobs/Monster.cpp b/src/Mobs/Monster.cpp
index f4827d5f5..b8040084a 100644
--- a/src/Mobs/Monster.cpp
+++ b/src/Mobs/Monster.cpp
@@ -479,7 +479,7 @@ bool cMonster::DoTakeDamage(TakeDamageInfo & a_TDI)
 
 	if (!m_SoundHurt.empty() && (m_Health > 0))
 	{
-		m_World->BroadcastSoundEffect(m_SoundHurt, (int)(GetPosX() * 8), (int)(GetPosY() * 8), (int)(GetPosZ() * 8), 1.0f, 0.8f);
+		m_World->BroadcastSoundEffect(m_SoundHurt, GetPosX(), GetPosY(), GetPosZ(), 1.0f, 0.8f);
 	}
 
 	if (a_TDI.Attacker != NULL)
@@ -498,7 +498,7 @@ void cMonster::KilledBy(cEntity * a_Killer)
 	super::KilledBy(a_Killer);
 	if (m_SoundHurt != "")
 	{
-		m_World->BroadcastSoundEffect(m_SoundDeath, (int)(GetPosX() * 8), (int)(GetPosY() * 8), (int)(GetPosZ() * 8), 1.0f, 0.8f);
+		m_World->BroadcastSoundEffect(m_SoundDeath, GetPosX(), GetPosY(), GetPosZ(), 1.0f, 0.8f);
 	}
 	int Reward;
 	switch (m_MobType)
@@ -920,7 +920,7 @@ cMonster * cMonster::NewMonsterFromType(cMonster::eType a_MobType)
 		case mtMooshroom:     toReturn = new cMooshroom();                break;
 		case mtOcelot:        toReturn = new cOcelot();                   break;
 		case mtPig:           toReturn = new cPig();                      break;
-		case mtSheep:         toReturn = new cSheep (Random.NextInt(15)); break; // Colour parameter
+		case mtSheep:         toReturn = new cSheep();                    break;
 		case mtSilverfish:    toReturn = new cSilverfish();               break;
 		case mtSnowGolem:     toReturn = new cSnowGolem();                break;
 		case mtSpider:        toReturn = new cSpider();                   break;
diff --git a/src/Mobs/Sheep.cpp b/src/Mobs/Sheep.cpp
index 5a6b760af..019f9e6a2 100644
--- a/src/Mobs/Sheep.cpp
+++ b/src/Mobs/Sheep.cpp
@@ -5,6 +5,7 @@
 #include "../BlockID.h"
 #include "../Entities/Player.h"
 #include "../World.h"
+#include "FastRandom.h"
 
 
 
@@ -16,6 +17,16 @@ cSheep::cSheep(int a_Color) :
 	m_WoolColor(a_Color),
 	m_TimeToStopEating(-1)
 {
+	// Generate random wool color.
+	if (m_WoolColor == -1)
+	{
+		m_WoolColor = GenerateNaturalRandomColor();
+	}
+
+	if ((m_WoolColor < 0) || (m_WoolColor > 15))
+	{
+		m_WoolColor = 0;
+	}
 }
 
 
@@ -37,7 +48,7 @@ void cSheep::GetDrops(cItems & a_Drops, cEntity * a_Killer)
 void cSheep::OnRightClicked(cPlayer & a_Player)
 {
 	const cItem & EquippedItem = a_Player.GetEquippedItem();
-	if ((EquippedItem.m_ItemType == E_ITEM_SHEARS) && (!m_IsSheared))
+	if ((EquippedItem.m_ItemType == E_ITEM_SHEARS) && !IsSheared() && !IsBaby())
 	{
 		m_IsSheared = true;
 		m_World->BroadcastEntityMetadata(*this);
@@ -51,6 +62,7 @@ void cSheep::OnRightClicked(cPlayer & a_Player)
 		int NumDrops = m_World->GetTickRandomNumber(2) + 1;
 		Drops.push_back(cItem(E_BLOCK_WOOL, NumDrops, m_WoolColor));
 		m_World->SpawnItemPickups(Drops, GetPosX(), GetPosY(), GetPosZ(), 10);
+		m_World->BroadcastSoundEffect("mob.sheep.shear", GetPosX(), GetPosY(), GetPosZ(), 1.0f, 1.0f);
 	}
 	else if ((EquippedItem.m_ItemType == E_ITEM_DYE) && (m_WoolColor != 15 - EquippedItem.m_ItemDamage))
 	{
@@ -109,3 +121,38 @@ void cSheep::Tick(float a_Dt, cChunk & a_Chunk)
 	}
 }
 
+
+
+
+
+NIBBLETYPE cSheep::GenerateNaturalRandomColor(void)
+{
+	cFastRandom Random;
+	int Chance = Random.NextInt(101);
+
+	if (Chance <= 81)
+	{
+		return E_META_WOOL_WHITE;
+	}
+	else if (Chance <= 86)
+	{
+		return E_META_WOOL_BLACK;
+	}
+	else if (Chance <= 91)
+	{
+		return E_META_WOOL_GRAY;
+	}
+	else if (Chance <= 96)
+	{
+		return E_META_WOOL_LIGHTGRAY;
+	}
+	else if (Chance <= 99)
+	{
+		return E_META_WOOL_BROWN;
+	}
+	else
+	{
+		return E_META_WOOL_PINK;
+	}
+}
+
diff --git a/src/Mobs/Sheep.h b/src/Mobs/Sheep.h
index 402e8e61c..5ffd3e4fe 100644
--- a/src/Mobs/Sheep.h
+++ b/src/Mobs/Sheep.h
@@ -13,21 +13,32 @@ class cSheep :
 	typedef cPassiveMonster super;
 	
 public:
-	cSheep(int a_Color);
-	
+
+	/** The number is the color of the sheep.
+	Use E_META_WOOL_* constants for the wool color.
+	If you type -1, the server will generate a random color
+	with the GenerateNaturalRandomColor() function. */
+	cSheep(int a_Color = -1);
+
 	CLASS_PROTODEF(cSheep);
-	
+
 	virtual void GetDrops(cItems & a_Drops, cEntity * a_Killer = NULL) override;
 	virtual void OnRightClicked(cPlayer & a_Player) override;
 	virtual void Tick(float a_Dt, cChunk & a_Chunk) override;
 
 	virtual const cItem GetFollowedItem(void) const override { return cItem(E_ITEM_WHEAT); }
 
+	/** Generates a random color for the sheep like the vanilla server.
+	The percent's where used are from the wiki: http://minecraft.gamepedia.com/Sheep#Breeding */
+	static NIBBLETYPE GenerateNaturalRandomColor(void);
+
 	bool IsSheared(void) const { return m_IsSheared; }
+	void SetSheared(bool a_IsSheared) { m_IsSheared = a_IsSheared; }
+
 	int GetFurColor(void) const { return m_WoolColor; }
+	void SetFurColor(int a_WoolColor) { m_WoolColor = a_WoolColor; }
 
 private:
-	
 	bool m_IsSheared;
 	int m_WoolColor;
 	int m_TimeToStopEating;
diff --git a/src/Protocol/Authenticator.cpp b/src/Protocol/Authenticator.cpp
index 2050393c2..54b823e0f 100644
--- a/src/Protocol/Authenticator.cpp
+++ b/src/Protocol/Authenticator.cpp
@@ -262,7 +262,7 @@ bool cAuthenticator::AuthWithYggdrasil(AString & a_UserName, const AString & a_S
 	AString HexDump;
 	if (Response.compare(0, prefix.size(), prefix))
 	{
-		LOGINFO("User \"%s\" failed to auth, bad http status line received", a_UserName.c_str());
+		LOGINFO("User %s failed to auth, bad http status line received", a_UserName.c_str());
 		LOG("Response: \n%s", CreateHexDump(HexDump, Response.data(), Response.size(), 16).c_str());
 		return false;
 	}
@@ -271,7 +271,7 @@ bool cAuthenticator::AuthWithYggdrasil(AString & a_UserName, const AString & a_S
 	size_t idxHeadersEnd = Response.find("\r\n\r\n");
 	if (idxHeadersEnd == AString::npos)
 	{
-		LOGINFO("User \"%s\" failed to authenticate, bad http response header received", a_UserName.c_str());
+		LOGINFO("User %s failed to authenticate, bad http response header received", a_UserName.c_str());
 		LOG("Response: \n%s", CreateHexDump(HexDump, Response.data(), Response.size(), 16).c_str());
 		return false;
 	}
diff --git a/src/Protocol/Protocol.h b/src/Protocol/Protocol.h
index ac872a2f2..dc35a6653 100644
--- a/src/Protocol/Protocol.h
+++ b/src/Protocol/Protocol.h
@@ -106,7 +106,7 @@ public:
 	virtual void SendScoreboardObjective (const AString & a_Name, const AString & a_DisplayName, Byte a_Mode) = 0;
 	virtual void SendScoreUpdate         (const AString & a_Objective, const AString & a_Player, cObjective::Score a_Score, Byte a_Mode) = 0;
 	virtual void SendDisplayObjective    (const AString & a_Objective, cScoreboard::eDisplaySlot a_Display) = 0;
-	virtual void SendSoundEffect         (const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch) = 0;  // a_Src coords are Block * 8
+	virtual void SendSoundEffect         (const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch) = 0;
 	virtual void SendSoundParticleEffect (int a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data) = 0;
 	virtual void SendSpawnFallingBlock   (const cFallingBlock & a_FallingBlock) = 0;
 	virtual void SendSpawnMob            (const cMonster & a_Mob) = 0;
diff --git a/src/Protocol/Protocol125.cpp b/src/Protocol/Protocol125.cpp
index 6dc2e918d..28fdcf23a 100644
--- a/src/Protocol/Protocol125.cpp
+++ b/src/Protocol/Protocol125.cpp
@@ -899,7 +899,7 @@ void cProtocol125::SendScoreboardObjective(const AString & a_Name, const AString
 
 
 
-void cProtocol125::SendSoundEffect(const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch)
+void cProtocol125::SendSoundEffect(const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch)
 {
 	// Not needed in this protocol version
 }
diff --git a/src/Protocol/Protocol125.h b/src/Protocol/Protocol125.h
index 9dbefd3a3..86a49f3f6 100644
--- a/src/Protocol/Protocol125.h
+++ b/src/Protocol/Protocol125.h
@@ -78,7 +78,7 @@ public:
 	virtual void SendScoreboardObjective (const AString & a_Name, const AString & a_DisplayName, Byte a_Mode) override;
 	virtual void SendScoreUpdate         (const AString & a_Objective, const AString & a_Player, cObjective::Score a_Score, Byte a_Mode) override {} // This protocol doesn't support such message
 	virtual void SendDisplayObjective    (const AString & a_Objective, cScoreboard::eDisplaySlot a_Display)                              override {} // This protocol doesn't support such message
-	virtual void SendSoundEffect         (const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch) override;  // a_Src coords are Block * 8
+	virtual void SendSoundEffect         (const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch) override;
 	virtual void SendSoundParticleEffect (int a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data) override;
 	virtual void SendSpawnFallingBlock   (const cFallingBlock & a_FallingBlock) override;
 	virtual void SendSpawnMob            (const cMonster & a_Mob) override;
diff --git a/src/Protocol/Protocol132.cpp b/src/Protocol/Protocol132.cpp
index 31cf99f53..7a8c2221e 100644
--- a/src/Protocol/Protocol132.cpp
+++ b/src/Protocol/Protocol132.cpp
@@ -195,13 +195,6 @@ void cProtocol132::SendCollectEntity(const cEntity & a_Entity, const cPlayer & a
 	WriteInt (a_Entity.GetUniqueID());
 	WriteInt (a_Player.GetUniqueID());
 	Flush();
-	
-	// Also send the "pop" sound effect with a somewhat random pitch (fast-random using EntityID ;)
-	SendSoundEffect(
-		"random.pop",
-		(int)(a_Entity.GetPosX() * 8), (int)(a_Entity.GetPosY() * 8), (int)(a_Entity.GetPosZ() * 8),
-		0.5, (float)(0.75 + ((float)((a_Entity.GetUniqueID() * 23) % 32)) / 64)
-	);
 }
 
 
@@ -285,14 +278,14 @@ void cProtocol132::SendPlayerSpawn(const cPlayer & a_Player)
 
 
 
-void cProtocol132::SendSoundEffect(const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch)
+void cProtocol132::SendSoundEffect(const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch)
 {
 	cCSLock Lock(m_CSPacket);
 	WriteByte   (PACKET_SOUND_EFFECT);
 	WriteString (a_SoundName);
-	WriteInt    (a_SrcX);
-	WriteInt    (a_SrcY);
-	WriteInt    (a_SrcZ);
+	WriteInt    ((int)(a_X * 8.0));
+	WriteInt    ((int)(a_Y * 8.0));
+	WriteInt    ((int)(a_Z * 8.0));
 	WriteFloat  (a_Volume);
 	WriteChar   ((char)(a_Pitch * 63.0f));
 	Flush();
diff --git a/src/Protocol/Protocol132.h b/src/Protocol/Protocol132.h
index e5d3ee80c..1124a7253 100644
--- a/src/Protocol/Protocol132.h
+++ b/src/Protocol/Protocol132.h
@@ -53,7 +53,7 @@ public:
 	virtual void SendEntityEquipment     (const cEntity & a_Entity, short a_SlotNum, const cItem & a_Item) override;
 	virtual void SendLogin               (const cPlayer & a_Player, const cWorld & a_World) override;
 	virtual void SendPlayerSpawn         (const cPlayer & a_Player) override;
-	virtual void SendSoundEffect         (const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch) override;  // a_Src coords are Block * 8
+	virtual void SendSoundEffect         (const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch) override;
 	virtual void SendSoundParticleEffect (int a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data) override;
 	virtual void SendSpawnMob            (const cMonster & a_Mob) override;
 	virtual void SendTabCompletionResults(const AStringVector & a_Results) override;
diff --git a/src/Protocol/Protocol17x.cpp b/src/Protocol/Protocol17x.cpp
index 855687269..dc6a817a3 100644
--- a/src/Protocol/Protocol17x.cpp
+++ b/src/Protocol/Protocol17x.cpp
@@ -1084,15 +1084,15 @@ void cProtocol172::SendDisplayObjective(const AString & a_Objective, cScoreboard
 
 
 
-void cProtocol172::SendSoundEffect(const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch)  // a_Src coords are Block * 8
+void cProtocol172::SendSoundEffect(const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch)
 {
 	ASSERT(m_State == 3);  // In game mode?
-	
+
 	cPacketizer Pkt(*this, 0x29);  // Sound Effect packet
 	Pkt.WriteString(a_SoundName);
-	Pkt.WriteInt(a_SrcX);
-	Pkt.WriteInt(a_SrcY);
-	Pkt.WriteInt(a_SrcZ);
+	Pkt.WriteInt((int)(a_X * 8.0));
+	Pkt.WriteInt((int)(a_Y * 8.0));
+	Pkt.WriteInt((int)(a_Z * 8.0));
 	Pkt.WriteFloat(a_Volume);
 	Pkt.WriteByte((Byte)(a_Pitch * 63));
 }
diff --git a/src/Protocol/Protocol17x.h b/src/Protocol/Protocol17x.h
index 1a65cfa1c..e635a62c1 100644
--- a/src/Protocol/Protocol17x.h
+++ b/src/Protocol/Protocol17x.h
@@ -105,7 +105,7 @@ public:
 	virtual void SendPluginMessage       (const AString & a_Channel, const AString & a_Message) override;
 	virtual void SendRemoveEntityEffect  (const cEntity & a_Entity, int a_EffectID) override;
 	virtual void SendRespawn             (const cWorld & a_World, bool a_ShouldIgnoreDimensionChecks = false) override;
-	virtual void SendSoundEffect         (const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch) override;  // a_Src coords are Block * 8
+	virtual void SendSoundEffect         (const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch) override;
 	virtual void SendExperience          (void) override;
 	virtual void SendExperienceOrb       (const cExpOrb & a_ExpOrb) override;
 	virtual void SendScoreboardObjective (const AString & a_Name, const AString & a_DisplayName, Byte a_Mode) override;
diff --git a/src/Protocol/ProtocolRecognizer.cpp b/src/Protocol/ProtocolRecognizer.cpp
index c0c9e08ee..29f4576cd 100644
--- a/src/Protocol/ProtocolRecognizer.cpp
+++ b/src/Protocol/ProtocolRecognizer.cpp
@@ -616,10 +616,10 @@ void cProtocolRecognizer::SendDisplayObjective(const AString & a_Objective, cSco
 
 
 
-void cProtocolRecognizer::SendSoundEffect(const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch)
+void cProtocolRecognizer::SendSoundEffect(const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch)
 {
 	ASSERT(m_Protocol != NULL);
-	m_Protocol->SendSoundEffect(a_SoundName, a_SrcX, a_SrcY, a_SrcZ, a_Volume, a_Pitch);
+	m_Protocol->SendSoundEffect(a_SoundName, a_X, a_Y, a_Z, a_Volume, a_Pitch);
 }
 
 
diff --git a/src/Protocol/ProtocolRecognizer.h b/src/Protocol/ProtocolRecognizer.h
index 0a9a42e93..e5ec3ece2 100644
--- a/src/Protocol/ProtocolRecognizer.h
+++ b/src/Protocol/ProtocolRecognizer.h
@@ -113,7 +113,7 @@ public:
 	virtual void SendScoreboardObjective (const AString & a_Name, const AString & a_DisplayName, Byte a_Mode) override;
 	virtual void SendScoreUpdate         (const AString & a_Objective, const AString & a_Player, cObjective::Score a_Score, Byte a_Mode) override;
 	virtual void SendDisplayObjective    (const AString & a_Objective, cScoreboard::eDisplaySlot a_Display) override;
-	virtual void SendSoundEffect         (const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch) override;
+	virtual void SendSoundEffect         (const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch) override;
 	virtual void SendSoundParticleEffect (int a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data) override;
 	virtual void SendSpawnFallingBlock   (const cFallingBlock & a_FallingBlock) override;
 	virtual void SendSpawnMob            (const cMonster & a_Mob) override;
diff --git a/src/Server.cpp b/src/Server.cpp
index 5d1e51036..9220731eb 100644
--- a/src/Server.cpp
+++ b/src/Server.cpp
@@ -221,14 +221,12 @@ bool cServer::InitServer(cIniFile & a_SettingsIni)
 
 	bool HasAnyPorts = false;
 	AString Ports = a_SettingsIni.GetValueSet("Server", "Port", "25565");
-	m_ListenThreadIPv4.SetReuseAddr(true);
 	if (m_ListenThreadIPv4.Initialize(Ports))
 	{
 		HasAnyPorts = true;
 	}
 
 	Ports = a_SettingsIni.GetValueSet("Server", "PortsIPv6", "25565");
-	m_ListenThreadIPv6.SetReuseAddr(true);
 	if (m_ListenThreadIPv6.Initialize(Ports))
 	{
 		HasAnyPorts = true;
diff --git a/src/Simulator/FloodyFluidSimulator.cpp b/src/Simulator/FloodyFluidSimulator.cpp
index 4ffda2365..d8de19871 100644
--- a/src/Simulator/FloodyFluidSimulator.cpp
+++ b/src/Simulator/FloodyFluidSimulator.cpp
@@ -254,7 +254,7 @@ void cFloodyFluidSimulator::SpreadToNeighbor(cChunk * a_NearChunk, int a_RelX, i
 			);
 			a_NearChunk->SetBlock(a_RelX, a_RelY, a_RelZ, NewBlock, 0);
 
-			a_NearChunk->BroadcastSoundEffect("random.fizz", BlockX * 8, a_RelY * 8, BlockZ * 8, 0.5f, 1.5f);
+			a_NearChunk->BroadcastSoundEffect("random.fizz", (double)BlockX, (double)a_RelY, (double)BlockZ, 0.5f, 1.5f);
 			return;
 		}
 	}
@@ -269,7 +269,7 @@ void cFloodyFluidSimulator::SpreadToNeighbor(cChunk * a_NearChunk, int a_RelX, i
 			);
 			a_NearChunk->SetBlock(a_RelX, a_RelY, a_RelZ, NewBlock, 0);
 
-			a_NearChunk->BroadcastSoundEffect("random.fizz", BlockX * 8, a_RelY * 8, BlockZ * 8, 0.5f, 1.5f);
+			a_NearChunk->BroadcastSoundEffect("random.fizz", (double)BlockX, (double)a_RelY, (double)BlockZ, 0.5f, 1.5f);
 			return;
 		}
 	}
diff --git a/src/Simulator/IncrementalRedstoneSimulator.cpp b/src/Simulator/IncrementalRedstoneSimulator.cpp
index 5af9a295d..fb5b01e17 100644
--- a/src/Simulator/IncrementalRedstoneSimulator.cpp
+++ b/src/Simulator/IncrementalRedstoneSimulator.cpp
@@ -5,6 +5,7 @@
 #include "BoundingBox.h"
 #include "../BlockEntities/DropSpenserEntity.h"
 #include "../BlockEntities/NoteEntity.h"
+#include "../BlockEntities/ChestEntity.h"
 #include "../BlockEntities/CommandBlockEntity.h"
 #include "../Entities/TNTEntity.h"
 #include "../Entities/Pickup.h"
@@ -15,8 +16,6 @@
 #include "../Blocks/BlockPiston.h"
 #include "../Blocks/BlockTripwireHook.h"
 
-#define WAKE_SIMULATOR_IF_DIRTY(a_Chunk, a_BlockX, a_BlockY, a_BlockZ) if (a_Chunk->IsRedstoneDirty()) WakeUp(a_BlockX, a_BlockY, a_BlockZ, a_Chunk);
-
 
 
 
@@ -63,14 +62,16 @@ void cIncrementalRedstoneSimulator::RedstoneAddBlock(int a_BlockX, int a_BlockY,
 	int RelZ = 0;	
 	BLOCKTYPE Block;
 	NIBBLETYPE Meta;
-	cChunk * OtherChunk = a_Chunk;
 
 	if (a_OtherChunk != NULL)
 	{
 		RelX = a_BlockX - a_OtherChunk->GetPosX() * cChunkDef::Width;
 		RelZ = a_BlockZ - a_OtherChunk->GetPosZ() * cChunkDef::Width;
 		a_OtherChunk->GetBlockTypeMeta(RelX, a_BlockY, RelZ, Block, Meta);
-		OtherChunk = a_OtherChunk;
+
+		// If a_OtherChunk is passed (not NULL), it is the chunk that had a block change, and a_Chunk will be the neighbouring chunk of that block
+		// Because said neighbouring chunk does not know of this change but still needs to update its redstone, we set it to dirty
+		a_Chunk->SetIsRedstoneDirty(true);
 	}
 	else
 	{
@@ -95,8 +96,6 @@ void cIncrementalRedstoneSimulator::RedstoneAddBlock(int a_BlockX, int a_BlockY,
 		{
 			LOGD("cIncrementalRedstoneSimulator: Erased block @ {%i, %i, %i} from powered blocks list as it no longer connected to a source", itr->a_BlockPos.x, itr->a_BlockPos.y, itr->a_BlockPos.z);
 			itr = PoweredBlocks->erase(itr);
-			a_Chunk->SetIsRedstoneDirty(true);
-			OtherChunk->SetIsRedstoneDirty(true);
 			continue;
 		}
 		else if (
@@ -105,34 +104,13 @@ void cIncrementalRedstoneSimulator::RedstoneAddBlock(int a_BlockX, int a_BlockY,
 			((Block == E_BLOCK_LEVER) && !IsLeverOn(Meta)) ||
 			((Block == E_BLOCK_DETECTOR_RAIL) && ((Meta & 0x08) == 0)) ||
 			(((Block == E_BLOCK_STONE_BUTTON) || (Block == E_BLOCK_WOODEN_BUTTON)) && (!IsButtonOn(Meta))) ||
-			(((Block == E_BLOCK_STONE_PRESSURE_PLATE) || (Block == E_BLOCK_WOODEN_PRESSURE_PLATE)) && (Meta == 0)) ||
-			(((Block == E_BLOCK_LIGHT_WEIGHTED_PRESSURE_PLATE) || (Block == E_BLOCK_HEAVY_WEIGHTED_PRESSURE_PLATE)) && (Meta == 0)) ||
 			((Block == E_BLOCK_TRIPWIRE_HOOK) && ((Meta & 0x08) == 0))
 			)
 		{
 			LOGD("cIncrementalRedstoneSimulator: Erased block @ {%i, %i, %i} from powered blocks list due to present/past metadata mismatch", itr->a_BlockPos.x, itr->a_BlockPos.y, itr->a_BlockPos.z);
 			itr = PoweredBlocks->erase(itr);
-			a_Chunk->SetIsRedstoneDirty(true);
-			OtherChunk->SetIsRedstoneDirty(true);
 			continue;
 		}
-		else if (Block == E_BLOCK_DAYLIGHT_SENSOR)
-		{
-			if (!m_World.IsChunkLighted(OtherChunk->GetPosX(), OtherChunk->GetPosZ()))
-			{
-				m_World.QueueLightChunk(OtherChunk->GetPosX(), OtherChunk->GetPosZ());
-			}
-			else
-			{
-				if (OtherChunk->GetTimeAlteredLight(OtherChunk->GetSkyLight(RelX, a_BlockY + 1, RelZ)) <= 7)
-				{
-					itr = PoweredBlocks->erase(itr);
-					a_Chunk->SetIsRedstoneDirty(true);
-					OtherChunk->SetIsRedstoneDirty(true);
-					continue;
-				}
-			}
-		}
 		++itr;
 	}
 
@@ -146,23 +124,17 @@ void cIncrementalRedstoneSimulator::RedstoneAddBlock(int a_BlockX, int a_BlockY,
 			{
 				LOGD("cIncrementalRedstoneSimulator: Erased block @ {%i, %i, %i} from linked powered blocks list as it is no longer connected to a source", itr->a_BlockPos.x, itr->a_BlockPos.y, itr->a_BlockPos.z);
 				itr = LinkedPoweredBlocks->erase(itr);
-				a_Chunk->SetIsRedstoneDirty(true);
-				OtherChunk->SetIsRedstoneDirty(true);
 				continue;
 			}
 			else if (
 				// Things that can send power through a block but which depends on meta
 				((Block == E_BLOCK_REDSTONE_WIRE) && (Meta == 0)) ||
 				((Block == E_BLOCK_LEVER) && !IsLeverOn(Meta)) ||
-				(((Block == E_BLOCK_STONE_BUTTON) || (Block == E_BLOCK_WOODEN_BUTTON)) && (!IsButtonOn(Meta))) ||
-				(((Block == E_BLOCK_STONE_PRESSURE_PLATE) || (Block == E_BLOCK_WOODEN_PRESSURE_PLATE)) && (Meta == 0)) ||
-				(((Block == E_BLOCK_LIGHT_WEIGHTED_PRESSURE_PLATE) || (Block == E_BLOCK_HEAVY_WEIGHTED_PRESSURE_PLATE)) && (Meta == 0))
+				(((Block == E_BLOCK_STONE_BUTTON) || (Block == E_BLOCK_WOODEN_BUTTON)) && (!IsButtonOn(Meta)))
 				)
 			{
 				LOGD("cIncrementalRedstoneSimulator: Erased block @ {%i, %i, %i} from linked powered blocks list due to present/past metadata mismatch", itr->a_BlockPos.x, itr->a_BlockPos.y, itr->a_BlockPos.z);
 				itr = LinkedPoweredBlocks->erase(itr);
-				a_Chunk->SetIsRedstoneDirty(true);
-				OtherChunk->SetIsRedstoneDirty(true);
 				continue;
 			}
 		}
@@ -172,8 +144,6 @@ void cIncrementalRedstoneSimulator::RedstoneAddBlock(int a_BlockX, int a_BlockY,
 			{
 				LOGD("cIncrementalRedstoneSimulator: Erased block @ {%i, %i, %i} from linked powered blocks list as it is no longer powered through a valid middle block", itr->a_BlockPos.x, itr->a_BlockPos.y, itr->a_BlockPos.z);
 				itr = LinkedPoweredBlocks->erase(itr);
-				a_Chunk->SetIsRedstoneDirty(true);
-				OtherChunk->SetIsRedstoneDirty(true);
 				continue;
 			}
 		}
@@ -320,6 +290,7 @@ void cIncrementalRedstoneSimulator::SimulateChunk(float a_Dt, int a_ChunkX, int
 				case E_BLOCK_FENCE_GATE:            HandleFenceGate(dataitr->x, dataitr->y, dataitr->z);      break;
 				case E_BLOCK_TNT:                   HandleTNT(dataitr->x, dataitr->y, dataitr->z);            break;
 				case E_BLOCK_TRAPDOOR:              HandleTrapdoor(dataitr->x, dataitr->y, dataitr->z);       break;
+				case E_BLOCK_TRAPPED_CHEST:         HandleTrappedChest(dataitr->x, dataitr->y, dataitr->z);   break;
 
 				case E_BLOCK_ACTIVATOR_RAIL:
 				case E_BLOCK_DETECTOR_RAIL:
@@ -382,18 +353,13 @@ void cIncrementalRedstoneSimulator::SimulateChunk(float a_Dt, int a_ChunkX, int
 
 void cIncrementalRedstoneSimulator::WakeUp(int a_BlockX, int a_BlockY, int a_BlockZ, cChunk * a_Chunk)
 {
-	if (
-		((a_BlockX % cChunkDef::Width) <= 1) ||
-		((a_BlockX % cChunkDef::Width) >= 14) ||
-		((a_BlockZ % cChunkDef::Width) <= 1) ||
-		((a_BlockZ % cChunkDef::Width) >= 14)
-		) // Are we on a chunk boundary? +- 2 because of LinkedPowered blocks
+	if (AreCoordsOnChunkBoundary(a_BlockX, a_BlockY, a_BlockZ))
 	{
 		// On a chunk boundary, alert all four sides (i.e. at least one neighbouring chunk)
 		AddBlock(a_BlockX, a_BlockY, a_BlockZ, a_Chunk);
 
 		// Pass the original coordinates, because when adding things to our simulator lists, we get the chunk that they are in, and therefore any updates need to preseve their position
-		// RedstoneAddBlock to pass both the neighbouring chunk and the chunk which the coordiantes are in and +- 2 in GetNeighbour() to accomodate for LinkedPowered blocks being 2 away from chunk boundaries
+		// RedstoneAddBlock to pass both the neighbouring chunk and the chunk which the coordinates are in and +- 2 in GetNeighbour() to accomodate for LinkedPowered blocks being 2 away from chunk boundaries
 		RedstoneAddBlock(a_BlockX, a_BlockY, a_BlockZ, a_Chunk->GetNeighborChunk(a_BlockX - 2, a_BlockZ), a_Chunk);
 		RedstoneAddBlock(a_BlockX, a_BlockY, a_BlockZ, a_Chunk->GetNeighborChunk(a_BlockX + 2, a_BlockZ), a_Chunk);
 		RedstoneAddBlock(a_BlockX, a_BlockY, a_BlockZ, a_Chunk->GetNeighborChunk(a_BlockX, a_BlockZ - 2), a_Chunk);
@@ -430,7 +396,13 @@ void cIncrementalRedstoneSimulator::HandleRedstoneTorch(int a_RelBlockX, int a_R
 		int X = a_RelBlockX; int Y = a_RelBlockY; int Z = a_RelBlockZ;
 		AddFaceDirection(X, Y, Z, cBlockTorchHandler::MetaDataToDirection(m_Chunk->GetMeta(a_RelBlockX, a_RelBlockY, a_RelBlockZ)), true); // Inverse true to get the block torch is on
 
-		if (AreCoordsDirectlyPowered(X, Y, Z))
+		cChunk * Neighbour = m_Chunk->GetRelNeighborChunk(X, Z);
+		if ((Neighbour == NULL) || !Neighbour->IsValid())
+		{
+			return;
+		}
+
+		if (AreCoordsDirectlyPowered(X, Y, Z, Neighbour))
 		{
 			// There was a match, torch goes off
 			m_Chunk->SetBlock(a_RelBlockX, a_RelBlockY, a_RelBlockZ, E_BLOCK_REDSTONE_TORCH_OFF, m_Chunk->GetMeta(a_RelBlockX, a_RelBlockY, a_RelBlockZ));
@@ -448,7 +420,7 @@ void cIncrementalRedstoneSimulator::HandleRedstoneTorch(int a_RelBlockX, int a_R
 			if (i + 1 < ARRAYCOUNT(gCrossCoords)) // Sides of torch, not top (top is last)
 			{
 				if (
-					((IsMechanism(Type)) || (Type == E_BLOCK_REDSTONE_WIRE)) && // Is it a mechanism or wire? Not block/other torch etc.
+					IsMechanism(Type) && // Is it a mechanism? Not block/other torch etc.
 					(!Vector3i(a_RelBlockX + gCrossCoords[i].x, a_RelBlockY + gCrossCoords[i].y, a_RelBlockZ + gCrossCoords[i].z).Equals(Vector3i(X, Y, Z))) // CAN'T power block is that it is on
 					)
 				{
@@ -468,7 +440,7 @@ void cIncrementalRedstoneSimulator::HandleRedstoneTorch(int a_RelBlockX, int a_R
 		{
 			BLOCKTYPE Type = m_Chunk->GetBlock(a_RelBlockX, a_RelBlockY - 1, a_RelBlockZ);
 
-			if ((IsMechanism(Type)) || (Type == E_BLOCK_REDSTONE_WIRE)) // Still can't make a normal block powered though!
+			if (IsMechanism(Type)) // Still can't make a normal block powered though!
 			{
 				SetBlockPowered(a_RelBlockX, a_RelBlockY - 1, a_RelBlockZ, a_RelBlockX, a_RelBlockY, a_RelBlockZ);
 			}
@@ -479,9 +451,15 @@ void cIncrementalRedstoneSimulator::HandleRedstoneTorch(int a_RelBlockX, int a_R
 		// Check if the block the torch is on is powered		
 		int X = a_RelBlockX; int Y = a_RelBlockY; int Z = a_RelBlockZ;
 		AddFaceDirection(X, Y, Z, cBlockTorchHandler::MetaDataToDirection(m_Chunk->GetMeta(a_RelBlockX, a_RelBlockY, a_RelBlockZ)), true); // Inverse true to get the block torch is on
-
+		
+		cChunk * Neighbour = m_Chunk->GetRelNeighborChunk(X, Z);
+		if ((Neighbour == NULL) || !Neighbour->IsValid())
+		{
+			return;
+		}
+		
 		// See if off state torch can be turned on again
-		if (AreCoordsDirectlyPowered(X, Y, Z))
+		if (AreCoordsDirectlyPowered(X, Y, Z, Neighbour))
 		{
 			return; // Something matches, torch still powered
 		}
@@ -780,17 +758,20 @@ void cIncrementalRedstoneSimulator::HandleRedstoneRepeaterDelays()
 {
 	for (RepeatersDelayList::iterator itr = m_RepeatersDelayList->begin(); itr != m_RepeatersDelayList->end();)
 	{
-
 		if (itr->a_ElapsedTicks >= itr->a_DelayTicks) // Has the elapsed ticks reached the target ticks?
 		{
 			int RelBlockX = itr->a_RelBlockPos.x;
 			int RelBlockY = itr->a_RelBlockPos.y;
 			int RelBlockZ = itr->a_RelBlockPos.z;
-			NIBBLETYPE Meta = m_Chunk->GetMeta(RelBlockX, RelBlockY, RelBlockZ);
+			BLOCKTYPE Block;
+			NIBBLETYPE Meta;
+			m_Chunk->GetBlockTypeMeta(RelBlockX, RelBlockY, RelBlockZ, Block, Meta);
 			if (itr->ShouldPowerOn)
 			{
-		
-				m_Chunk->SetBlock(itr->a_RelBlockPos, E_BLOCK_REDSTONE_REPEATER_ON, Meta); // For performance
+				if (Block != E_BLOCK_REDSTONE_REPEATER_ON) // For performance
+				{
+					m_Chunk->SetBlock(itr->a_RelBlockPos, E_BLOCK_REDSTONE_REPEATER_ON, Meta);
+				}
 
 				switch (Meta & 0x3) // We only want the direction (bottom) bits
 				{
@@ -820,17 +801,14 @@ void cIncrementalRedstoneSimulator::HandleRedstoneRepeaterDelays()
 					}
 				}
 			}
-			else
+			else if (Block != E_BLOCK_REDSTONE_REPEATER_OFF)
 			{
-				m_Chunk->SetBlock(RelBlockX, RelBlockY, RelBlockZ, E_BLOCK_REDSTONE_REPEATER_OFF, Meta);
+				m_Chunk->SetBlock(RelBlockX, RelBlockY, RelBlockZ, E_BLOCK_REDSTONE_REPEATER_OFF, Meta);				
 			}
 			itr = m_RepeatersDelayList->erase(itr);
 		}
 		else
 		{
-			// Apparently, incrementing ticks only works reliably here, and not in SimChunk;
-			// With a world with lots of redstone, the repeaters simply do not delay
-			// I am confounded to say why. Perhaps optimisation failure.
 			LOGD("Incremented a repeater @ {%i %i %i} | Elapsed ticks: %i | Target delay: %i", itr->a_RelBlockPos.x, itr->a_RelBlockPos.y, itr->a_RelBlockPos.z, itr->a_ElapsedTicks, itr->a_DelayTicks);
 			itr->a_ElapsedTicks++;
 			itr++;
@@ -915,7 +893,7 @@ void cIncrementalRedstoneSimulator::HandleTNT(int a_RelBlockX, int a_RelBlockY,
 
 	if (AreCoordsPowered(a_RelBlockX, a_RelBlockY, a_RelBlockZ))
 	{
-		m_Chunk->BroadcastSoundEffect("game.tnt.primed", BlockX * 8, a_RelBlockY * 8, BlockZ * 8, 0.5f, 0.6f);
+		m_Chunk->BroadcastSoundEffect("game.tnt.primed", (double)BlockX, (double)a_RelBlockY, (double)BlockZ, 0.5f, 0.6f);
 		m_Chunk->SetBlock(a_RelBlockX, a_RelBlockY, a_RelBlockZ, E_BLOCK_AIR, 0);
 		m_World.SpawnPrimedTNT(BlockX + 0.5, a_RelBlockY + 0.5, BlockZ + 0.5);  // 80 ticks to boom
 	}
@@ -1139,7 +1117,7 @@ void cIncrementalRedstoneSimulator::HandlePressurePlate(int a_RelBlockX, int a_R
 			else
 			{
 				m_Chunk->SetMeta(a_RelBlockX, a_RelBlockY, a_RelBlockZ, 0x0);
-				WAKE_SIMULATOR_IF_DIRTY(m_Chunk, BlockX, a_RelBlockY, BlockZ);
+				SetSourceUnpowered(BlockX, a_RelBlockY, BlockZ, m_Chunk);
 			}
 			break;
 		}
@@ -1193,7 +1171,7 @@ void cIncrementalRedstoneSimulator::HandlePressurePlate(int a_RelBlockX, int a_R
 			{
 				if (Meta == E_META_PRESSURE_PLATE_RAISED)
 				{
-					m_Chunk->BroadcastSoundEffect("random.click", (int)((BlockX + 0.5) * 8.0), (int)((a_RelBlockY + 0.1) * 8.0), (int)((BlockZ + 0.5) * 8.0), 0.3F, 0.5F);
+					m_Chunk->BroadcastSoundEffect("random.click", (double)BlockX + 0.5, (double)a_RelBlockY + 0.1, (double)BlockZ + 0.5, 0.3F, 0.5F);
 				}
 				m_Chunk->SetMeta(a_RelBlockX, a_RelBlockY, a_RelBlockZ, E_META_PRESSURE_PLATE_DEPRESSED);
 				SetAllDirsAsPowered(a_RelBlockX, a_RelBlockY, a_RelBlockZ, Power);
@@ -1203,10 +1181,10 @@ void cIncrementalRedstoneSimulator::HandlePressurePlate(int a_RelBlockX, int a_R
 			{
 				if (Meta == E_META_PRESSURE_PLATE_DEPRESSED)
 				{
-					m_Chunk->BroadcastSoundEffect("random.click", (int)((BlockX + 0.5) * 8.0), (int)((a_RelBlockY + 0.1) * 8.0), (int)((BlockZ + 0.5) * 8.0), 0.3F, 0.6F);
+					m_Chunk->BroadcastSoundEffect("random.click", (double)BlockX + 0.5, (double)a_RelBlockY + 0.1, (double)BlockZ + 0.5, 0.3F, 0.6F);
 				}
 				m_Chunk->SetMeta(a_RelBlockX, a_RelBlockY, a_RelBlockZ, E_META_PRESSURE_PLATE_RAISED);
-				WAKE_SIMULATOR_IF_DIRTY(m_Chunk, BlockX, a_RelBlockY, BlockZ);
+				SetSourceUnpowered(BlockX, a_RelBlockY, BlockZ, m_Chunk);
 			}
 
 			break;
@@ -1261,7 +1239,7 @@ void cIncrementalRedstoneSimulator::HandlePressurePlate(int a_RelBlockX, int a_R
 			{
 				if (Meta == E_META_PRESSURE_PLATE_RAISED)
 				{
-					m_Chunk->BroadcastSoundEffect("random.click", (int)((BlockX + 0.5) * 8.0), (int)((a_RelBlockY + 0.1) * 8.0), (int)((BlockZ + 0.5) * 8.0), 0.3F, 0.5F);
+					m_Chunk->BroadcastSoundEffect("random.click", (double)BlockX + 0.5, (double)a_RelBlockY + 0.1, (double)BlockZ + 0.5, 0.3F, 0.5F);
 				}
 				m_Chunk->SetMeta(a_RelBlockX, a_RelBlockY, a_RelBlockZ, E_META_PRESSURE_PLATE_DEPRESSED);
 				SetAllDirsAsPowered(a_RelBlockX, a_RelBlockY, a_RelBlockZ, Power);
@@ -1271,10 +1249,10 @@ void cIncrementalRedstoneSimulator::HandlePressurePlate(int a_RelBlockX, int a_R
 			{
 				if (Meta == E_META_PRESSURE_PLATE_DEPRESSED)
 				{
-					m_Chunk->BroadcastSoundEffect("random.click", (int)((BlockX + 0.5) * 8.0), (int)((a_RelBlockY + 0.1) * 8.0), (int)((BlockZ + 0.5) * 8.0), 0.3F, 0.6F);
+					m_Chunk->BroadcastSoundEffect("random.click", (double)BlockX + 0.5, (double)a_RelBlockY + 0.1, (double)BlockZ + 0.5, 0.3F, 0.6F);
 				}
 				m_Chunk->SetMeta(a_RelBlockX, a_RelBlockY, a_RelBlockZ, E_META_PRESSURE_PLATE_RAISED);
-				WAKE_SIMULATOR_IF_DIRTY(m_Chunk, BlockX, a_RelBlockY, BlockZ);
+				SetSourceUnpowered(BlockX, a_RelBlockY, BlockZ, m_Chunk);
 			}
 
 			break;
@@ -1328,7 +1306,7 @@ void cIncrementalRedstoneSimulator::HandlePressurePlate(int a_RelBlockX, int a_R
 			{
 				if (Meta == E_META_PRESSURE_PLATE_RAISED)
 				{
-					m_Chunk->BroadcastSoundEffect("random.click", (int)((BlockX + 0.5) * 8.0), (int)((a_RelBlockY + 0.1) * 8.0), (int)((BlockZ + 0.5) * 8.0), 0.3F, 0.5F);
+					m_Chunk->BroadcastSoundEffect("random.click", (double)BlockX + 0.5, (double)a_RelBlockY + 0.1, (double)BlockZ + 0.5, 0.3F, 0.5F);
 				}
 				m_Chunk->SetMeta(a_RelBlockX, a_RelBlockY, a_RelBlockZ, E_META_PRESSURE_PLATE_DEPRESSED);
 				SetAllDirsAsPowered(a_RelBlockX, a_RelBlockY, a_RelBlockZ);
@@ -1338,10 +1316,10 @@ void cIncrementalRedstoneSimulator::HandlePressurePlate(int a_RelBlockX, int a_R
 			{
 				if (Meta == E_META_PRESSURE_PLATE_DEPRESSED)
 				{
-					m_Chunk->BroadcastSoundEffect("random.click", (int)((BlockX + 0.5) * 8.0), (int)((a_RelBlockY + 0.1) * 8.0), (int)((BlockZ + 0.5) * 8.0), 0.3F, 0.6F);
+					m_Chunk->BroadcastSoundEffect("random.click", (double)BlockX + 0.5, (double)a_RelBlockY + 0.1, (double)BlockZ + 0.5, 0.3F, 0.6F);
 				}
 				m_Chunk->SetMeta(a_RelBlockX, a_RelBlockY, a_RelBlockZ, E_META_PRESSURE_PLATE_RAISED);
-				WAKE_SIMULATOR_IF_DIRTY(m_Chunk, BlockX, a_RelBlockY, BlockZ);
+				SetSourceUnpowered(BlockX, a_RelBlockY, BlockZ, m_Chunk);
 			}
 			break;
 		}
@@ -1384,14 +1362,14 @@ void cIncrementalRedstoneSimulator::HandleTripwireHook(int a_RelBlockX, int a_Re
 		{
 			if (ReverseBlockFace(cBlockTripwireHookHandler::MetadataToDirection(Meta)) == FaceToGoTowards)
 			{
-				// Other hook not facing in opposite direction
+				// Other hook facing in opposite direction - circuit completed!
 				break;
 			}
 			else
 			{
 				// Tripwire hook not connected at all, AND away all the power state bits
 				m_Chunk->SetMeta(a_RelBlockX, a_RelBlockY, a_RelBlockZ, m_Chunk->GetMeta(a_RelBlockX, a_RelBlockY, a_RelBlockZ) & 0x3);
-				WAKE_SIMULATOR_IF_DIRTY(m_Chunk, BlockX, a_RelBlockY, BlockZ);
+				SetSourceUnpowered(BlockX, a_RelBlockY, BlockZ, m_Chunk);
 				return;
 			}
 		}
@@ -1399,7 +1377,7 @@ void cIncrementalRedstoneSimulator::HandleTripwireHook(int a_RelBlockX, int a_Re
 		{
 			// Tripwire hook not connected at all, AND away all the power state bits
 			m_Chunk->SetMeta(a_RelBlockX, a_RelBlockY, a_RelBlockZ, m_Chunk->GetMeta(a_RelBlockX, a_RelBlockY, a_RelBlockZ) & 0x3);
-			WAKE_SIMULATOR_IF_DIRTY(m_Chunk, BlockX, a_RelBlockY, BlockZ);
+			SetSourceUnpowered(BlockX, a_RelBlockY, BlockZ, m_Chunk);
 			return;
 		}
 	}
@@ -1414,7 +1392,51 @@ void cIncrementalRedstoneSimulator::HandleTripwireHook(int a_RelBlockX, int a_Re
 	{
 		// Connected but not activated, AND away the highest bit
 		m_Chunk->SetMeta(a_RelBlockX, a_RelBlockY, a_RelBlockZ, (m_Chunk->GetMeta(a_RelBlockX, a_RelBlockY, a_RelBlockZ) & 0x7) | 0x4);
-		WAKE_SIMULATOR_IF_DIRTY(m_Chunk, BlockX, a_RelBlockY, BlockZ);
+		SetSourceUnpowered(BlockX, a_RelBlockY, BlockZ, m_Chunk);
+	}
+}
+
+
+
+
+
+void cIncrementalRedstoneSimulator::HandleTrappedChest(int a_RelBlockX, int a_RelBlockY, int a_RelBlockZ)
+{
+	class cGetTrappedChestPlayers :
+		public cChestCallback
+	{
+	public:
+		cGetTrappedChestPlayers(void) :
+			m_NumberOfPlayers(0)
+		{
+		}
+
+		virtual bool Item(cChestEntity * a_Chest) override
+		{
+			ASSERT(a_Chest->GetBlockType() == E_BLOCK_TRAPPED_CHEST);
+			m_NumberOfPlayers = a_Chest->GetNumberOfPlayers();
+			return (m_NumberOfPlayers <= 0);
+		}
+
+		unsigned char GetPowerLevel(void) const
+		{
+			return std::min(m_NumberOfPlayers, MAX_POWER_LEVEL);
+		}
+
+	private:
+		int m_NumberOfPlayers;
+
+	} GTCP;
+
+	int BlockX = m_Chunk->GetPosX() * cChunkDef::Width + a_RelBlockX;
+	int BlockZ = m_Chunk->GetPosZ() * cChunkDef::Width + a_RelBlockZ;
+	if (m_Chunk->DoWithChestAt(BlockX, a_RelBlockY, BlockZ, GTCP))
+	{
+		SetAllDirsAsPowered(a_RelBlockX, a_RelBlockY, a_RelBlockZ, GTCP.GetPowerLevel());
+	}
+	else
+	{
+		SetSourceUnpowered(BlockX, a_RelBlockY, BlockZ, m_Chunk);
 	}
 }
 
@@ -1482,13 +1504,14 @@ void cIncrementalRedstoneSimulator::HandleTripwire(int a_RelBlockX, int a_RelBlo
 
 
 
-bool cIncrementalRedstoneSimulator::AreCoordsDirectlyPowered(int a_RelBlockX, int a_RelBlockY, int a_RelBlockZ)
+bool cIncrementalRedstoneSimulator::AreCoordsDirectlyPowered(int a_RelBlockX, int a_RelBlockY, int a_RelBlockZ, cChunk * a_Chunk)
 {
+	// Torches want to access neighbour's data when on a wall, hence the extra chunk parameter
+
 	int BlockX = (m_Chunk->GetPosX() * cChunkDef::Width) + a_RelBlockX;
 	int BlockZ = (m_Chunk->GetPosZ() * cChunkDef::Width) + a_RelBlockZ;
 
-	PoweredBlocksList * Powered = m_Chunk->GetNeighborChunk(BlockX, BlockZ)->GetRedstoneSimulatorPoweredBlocksList(); // Torches want to access neighbour's data when on a wall
-	for (PoweredBlocksList::const_iterator itr = Powered->begin(); itr != Powered->end(); ++itr) // Check powered list
+	for (PoweredBlocksList::const_iterator itr = a_Chunk->GetRedstoneSimulatorPoweredBlocksList()->begin(); itr != a_Chunk->GetRedstoneSimulatorPoweredBlocksList()->end(); ++itr) // Check powered list
 	{
 		if (itr->a_BlockPos.Equals(Vector3i(BlockX, a_RelBlockY, BlockZ)))
 		{
@@ -1691,8 +1714,8 @@ bool cIncrementalRedstoneSimulator::IsPistonPowered(int a_RelBlockX, int a_RelBl
 bool cIncrementalRedstoneSimulator::IsWirePowered(int a_RelBlockX, int a_RelBlockY, int a_RelBlockZ, unsigned char & a_PowerLevel)
 {
 	a_PowerLevel = 0;
-	int BlockX = (m_Chunk->GetPosX() * cChunkDef::Width) + a_RelBlockX;
-	int BlockZ = (m_Chunk->GetPosZ() * cChunkDef::Width) + a_RelBlockZ;
+	int BlockX = m_Chunk->GetPosX() * cChunkDef::Width + a_RelBlockX;
+	int BlockZ = m_Chunk->GetPosZ() * cChunkDef::Width + a_RelBlockZ;
 
 	for (PoweredBlocksList::const_iterator itr = m_PoweredBlocks->begin(); itr != m_PoweredBlocks->end(); ++itr) // Check powered list
 	{
@@ -1709,6 +1732,14 @@ bool cIncrementalRedstoneSimulator::IsWirePowered(int a_RelBlockX, int a_RelBloc
 		{
 			continue;
 		}
+
+		BLOCKTYPE Type = E_BLOCK_AIR;
+		int RelSourceX = itr->a_SourcePos.x - m_Chunk->GetPosX() * cChunkDef::Width;
+		int RelSourceZ = itr->a_SourcePos.z - m_Chunk->GetPosZ() * cChunkDef::Width;
+		if (!m_Chunk->UnboundedRelGetBlockType(RelSourceX, itr->a_SourcePos.y, RelSourceZ, Type) || (Type == E_BLOCK_REDSTONE_WIRE))
+		{
+			continue;
+		}
 		a_PowerLevel = std::max(itr->a_PowerLevel, a_PowerLevel);
 	}
 
@@ -1881,20 +1912,14 @@ void cIncrementalRedstoneSimulator::SetBlockPowered(int a_RelBlockX, int a_RelBl
 	int SourceX = (m_Chunk->GetPosX() * cChunkDef::Width) + a_RelSourceX;
 	int SourceZ = (m_Chunk->GetPosZ() * cChunkDef::Width) + a_RelSourceZ;
 
-	BLOCKTYPE Block = 0;
-	if (!m_Chunk->UnboundedRelGetBlockType(a_RelBlockX, a_RelBlockY, a_RelBlockZ, Block))
+	cChunk * Neighbour = m_Chunk->GetRelNeighborChunkAdjustCoords(a_RelBlockX, a_RelBlockZ); // Adjust coordinates for the later call using these values
+	if ((Neighbour == NULL) || !Neighbour->IsValid())
 	{
 		return;
 	}
-	if (Block == E_BLOCK_AIR)
-	{
-		// Don't set air, fixes some bugs (wires powering themselves)
-		return;
-	}
 
-	cChunk * Neighbour = m_Chunk->GetNeighborChunk(BlockX, BlockZ);
-	PoweredBlocksList * Powered = Neighbour->GetRedstoneSimulatorPoweredBlocksList();
-	for (PoweredBlocksList::iterator itr = Powered->begin(); itr != Powered->end(); ++itr)  // Check powered list
+	PoweredBlocksList * Powered = Neighbour->GetRedstoneSimulatorPoweredBlocksList(); // We need to insert the value into the chunk who owns the block position
+	for (PoweredBlocksList::iterator itr = Powered->begin(); itr != Powered->end(); ++itr)
 	{
 		if (
 			itr->a_BlockPos.Equals(Vector3i(BlockX, a_RelBlockY, BlockZ)) &&
@@ -1907,16 +1932,33 @@ void cIncrementalRedstoneSimulator::SetBlockPowered(int a_RelBlockX, int a_RelBl
 		}
 	}
 
-	PoweredBlocksList * OtherPowered = m_Chunk->GetNeighborChunk(SourceX, SourceZ)->GetRedstoneSimulatorPoweredBlocksList();
-	for (PoweredBlocksList::const_iterator itr = OtherPowered->begin(); itr != OtherPowered->end(); ++itr)  // Check powered list
+	// No need to get neighbouring chunk as we can guarantee that when something is powering us, the entry will be in our chunk
+	// TODO: on C++11 support, change this to a llama function pased to a std::remove_if
+	for (PoweredBlocksList::iterator itr = m_PoweredBlocks->begin(); itr != m_PoweredBlocks->end(); ++itr)
 	{
 		if (
 			itr->a_BlockPos.Equals(Vector3i(SourceX, a_RelSourceY, SourceZ)) &&
-			itr->a_SourcePos.Equals(Vector3i(BlockX, a_RelBlockY, BlockZ))
+			itr->a_SourcePos.Equals(Vector3i(BlockX, a_RelBlockY, BlockZ)) &&
+			(m_Chunk->GetBlock(a_RelSourceX, a_RelSourceY, a_RelSourceZ) == E_BLOCK_REDSTONE_WIRE)
 			)
 		{
-			// Powered wires try to power their source - don't let them!
-			return;
+			BLOCKTYPE Block;
+			NIBBLETYPE Meta;
+			Neighbour->GetBlockTypeMeta(a_RelBlockX, a_RelBlockY, a_RelBlockZ, Block, Meta);
+
+			if (Block == E_BLOCK_REDSTONE_WIRE)
+			{
+				if (Meta < a_PowerLevel)
+				{
+					m_PoweredBlocks->erase(itr); // Powering source with higher power level, allow it
+					break;
+				}
+				else
+				{
+					// Powered wires try to power their source - don't let them!
+					return;
+				}
+			}
 		}
 	}
 
@@ -1947,26 +1989,17 @@ void cIncrementalRedstoneSimulator::SetBlockLinkedPowered(
 	int SourceX = (m_Chunk->GetPosX() * cChunkDef::Width) + a_RelSourceX;
 	int SourceZ = (m_Chunk->GetPosZ() * cChunkDef::Width) + a_RelSourceZ;
 
-	BLOCKTYPE DestBlock = 0;
-	if (!m_Chunk->UnboundedRelGetBlockType(a_RelBlockX, a_RelBlockY, a_RelBlockZ, DestBlock))
-	{
-		return;
-	}
-	if (DestBlock == E_BLOCK_AIR)
-	{
-		// Don't set air, fixes some bugs (wires powering themselves)
-		return;
-	}
-	if ((DestBlock == E_BLOCK_REDSTONE_WIRE) && (m_Chunk->GetBlock(a_RelSourceX, a_RelSourceY, a_RelSourceZ) == E_BLOCK_REDSTONE_WIRE))
+	if (!IsViableMiddleBlock(a_MiddleBlock))
 	{
 		return;
 	}
-	if (!IsViableMiddleBlock(a_MiddleBlock))
+
+	cChunk * Neighbour = m_Chunk->GetNeighborChunk(BlockX, BlockZ);
+	if ((Neighbour == NULL) || !Neighbour->IsValid())
 	{
 		return;
 	}
 
-	cChunk * Neighbour = m_Chunk->GetNeighborChunk(BlockX, BlockZ);
 	LinkedBlocksList * Linked = Neighbour->GetRedstoneSimulatorLinkedBlocksList();
 	for (LinkedBlocksList::iterator itr = Linked->begin(); itr != Linked->end(); ++itr)  // Check linked powered list
 	{
@@ -2066,6 +2099,45 @@ bool cIncrementalRedstoneSimulator::QueueRepeaterPowerChange(int a_RelBlockX, in
 
 
 
+void cIncrementalRedstoneSimulator::SetSourceUnpowered(int a_SourceX, int a_SourceY, int a_SourceZ, cChunk * a_Chunk, bool a_IsFirstCall)
+{
+	// TODO: on C++11 support, change both of these to llama functions pased to a std::remove_if
+
+	for (PoweredBlocksList::iterator itr = a_Chunk->GetRedstoneSimulatorPoweredBlocksList()->begin(); itr != a_Chunk->GetRedstoneSimulatorPoweredBlocksList()->end();)
+	{
+		if (itr->a_SourcePos.Equals(Vector3i(a_SourceX, a_SourceY, a_SourceZ)))
+		{
+			itr = a_Chunk->GetRedstoneSimulatorPoweredBlocksList()->erase(itr);
+			a_Chunk->SetIsRedstoneDirty(true);
+			continue;
+		}
+		++itr;
+	}
+	for (LinkedBlocksList::iterator itr = a_Chunk->GetRedstoneSimulatorLinkedBlocksList()->begin(); itr != a_Chunk->GetRedstoneSimulatorLinkedBlocksList()->end();)
+	{
+		if (itr->a_SourcePos.Equals(Vector3i(a_SourceX, a_SourceY, a_SourceZ)))
+		{
+			itr = a_Chunk->GetRedstoneSimulatorLinkedBlocksList()->erase(itr);
+			a_Chunk->SetIsRedstoneDirty(true);
+			continue;
+		}
+		++itr;
+	}
+
+	if (a_IsFirstCall && AreCoordsOnChunkBoundary(a_SourceX, a_SourceY, a_SourceZ))
+	{
+		// +- 2 to accomodate linked powered blocks
+		SetSourceUnpowered(a_SourceX, a_SourceY, a_SourceZ, a_Chunk->GetNeighborChunk(a_SourceX - 2, a_SourceZ), false);
+		SetSourceUnpowered(a_SourceX, a_SourceY, a_SourceZ, a_Chunk->GetNeighborChunk(a_SourceX + 2, a_SourceZ), false);
+		SetSourceUnpowered(a_SourceX, a_SourceY, a_SourceZ, a_Chunk->GetNeighborChunk(a_SourceX, a_SourceZ - 2), false);
+		SetSourceUnpowered(a_SourceX, a_SourceY, a_SourceZ, a_Chunk->GetNeighborChunk(a_SourceX, a_SourceZ + 2), false);
+	}
+}
+
+
+
+
+
 cIncrementalRedstoneSimulator::eRedstoneDirection cIncrementalRedstoneSimulator::GetWireDirection(int a_RelBlockX, int a_RelBlockY, int a_RelBlockZ)
 {
 	int Dir = REDSTONE_NONE;
diff --git a/src/Simulator/IncrementalRedstoneSimulator.h b/src/Simulator/IncrementalRedstoneSimulator.h
index 6cefdebf2..1faf4187b 100644
--- a/src/Simulator/IncrementalRedstoneSimulator.h
+++ b/src/Simulator/IncrementalRedstoneSimulator.h
@@ -107,6 +107,8 @@ private:
 	If this line is complete, it verifies that at least on wire reports an entity is on top (via its meta), and performs its task
 	*/
 	void HandleTripwireHook(int a_RelBlockX, int a_RelBlockY, int a_RelBlockZ);
+	/** Handles trapped chests */
+	void HandleTrappedChest(int a_RelBlockX, int a_RelBlockY, int a_RelBlockZ);
 	/* ==================== */
 
 	/* ====== CARRIERS ====== */
@@ -114,8 +116,6 @@ private:
 	void HandleRedstoneWire(int a_RelBlockX, int a_RelBlockY, int a_RelBlockZ);
 	/** Handles repeaters */
 	void HandleRedstoneRepeater(int a_RelBlockX, int a_RelBlockY, int a_RelBlockZ, BLOCKTYPE a_MyState);
-	/** Handles delayed updates to Repeaters **/
-	void HandleRedstoneRepeaterDelays();
 	/* ====================== */
 
 	/* ====== DEVICES ====== */
@@ -156,11 +156,15 @@ private:
 	void SetAllDirsAsPowered(int a_RelBlockX, int a_RelBlockY, int a_RelBlockZ, unsigned char a_PowerLevel = MAX_POWER_LEVEL);
 	/** Queues a repeater to be powered or unpowered and returns if the m_RepeatersDelayList iterators were invalidated */
 	bool QueueRepeaterPowerChange(int a_RelBlockX, int a_RelBlockY, int a_RelBlockZ, NIBBLETYPE a_Meta, bool ShouldPowerOn);
+	/** Removes a block from the Powered and LinkedPowered lists
+	Used for variable sources such as tripwire hooks, daylight sensors, and trapped chests
+	*/
+	void SetSourceUnpowered(int a_RelSourceX, int a_RelSourceY, int a_RelSourceZ, cChunk * a_Chunk, bool a_IsFirstCall = true);
 
 	/** Returns if a coordinate is powered or linked powered */
-	bool AreCoordsPowered(int a_RelBlockX, int a_RelBlockY, int a_RelBlockZ) { return AreCoordsDirectlyPowered(a_RelBlockX, a_RelBlockY, a_RelBlockZ) || AreCoordsLinkedPowered(a_RelBlockX, a_RelBlockY, a_RelBlockZ); }
+	bool AreCoordsPowered(int a_RelBlockX, int a_RelBlockY, int a_RelBlockZ) { return AreCoordsDirectlyPowered(a_RelBlockX, a_RelBlockY, a_RelBlockZ, m_Chunk) || AreCoordsLinkedPowered(a_RelBlockX, a_RelBlockY, a_RelBlockZ); }
 	/** Returns if a coordinate is in the directly powered blocks list */
-	bool AreCoordsDirectlyPowered(int a_RelBlockX, int a_RelBlockY, int a_RelBlockZ);
+	bool AreCoordsDirectlyPowered(int a_RelBlockX, int a_RelBlockY, int a_RelBlockZ, cChunk * a_Chunk);
 	/** Returns if a coordinate is in the indirectly powered blocks list */
 	bool AreCoordsLinkedPowered(int a_RelBlockX, int a_RelBlockY, int a_RelBlockZ);
 	/** Returns if a coordinate was marked as simulated (for blocks toggleable by players) */
@@ -174,7 +178,8 @@ private:
 	/** Returns if a wire is powered
 	The only diffence between this and a normal AreCoordsPowered is that this function checks for a wire powering another wire */
 	bool IsWirePowered(int a_RelBlockX, int a_RelBlockY, int a_RelBlockZ, unsigned char & a_PowerLevel);
-
+	/** Handles delayed updates to repeaters **/
+	void HandleRedstoneRepeaterDelays(void);
 
 	/** Returns if lever metadata marks it as emitting power */
 	bool IsLeverOn(NIBBLETYPE a_BlockMeta);
@@ -186,7 +191,9 @@ private:
 	/** Returns if a block is viable to be the MiddleBlock of a SetLinkedPowered operation */
 	inline static bool IsViableMiddleBlock(BLOCKTYPE Block) { return cBlockInfo::FullyOccupiesVoxel(Block); }
 
-	/** Returns if a block is a mechanism (something that accepts power and does something) */
+	/** Returns if a block is a mechanism (something that accepts power and does something)
+	Used by torches to determine if they power a block whilst not standing on the ground
+	*/
 	inline static bool IsMechanism(BLOCKTYPE Block)
 	{
 		switch (Block)
@@ -209,6 +216,7 @@ private:
 			case E_BLOCK_REDSTONE_REPEATER_OFF:
 			case E_BLOCK_REDSTONE_REPEATER_ON:
 			case E_BLOCK_POWERED_RAIL:
+			case E_BLOCK_REDSTONE_WIRE:
 			{
 				return true;
 			}
@@ -235,6 +243,7 @@ private:
 			case E_BLOCK_LIGHT_WEIGHTED_PRESSURE_PLATE:
 			case E_BLOCK_STONE_PRESSURE_PLATE:
 			case E_BLOCK_WOODEN_PRESSURE_PLATE:
+			case E_BLOCK_TRAPPED_CHEST:
 			{
 				return true;
 			}
@@ -277,6 +286,7 @@ private:
 			case E_BLOCK_STONE_PRESSURE_PLATE:
 			case E_BLOCK_TNT:
 			case E_BLOCK_TRAPDOOR:
+			case E_BLOCK_TRAPPED_CHEST:
 			case E_BLOCK_TRIPWIRE_HOOK:
 			case E_BLOCK_TRIPWIRE:
 			case E_BLOCK_WOODEN_BUTTON:
@@ -289,6 +299,16 @@ private:
 			default: return false;
 		}
 	}
+
+	inline static bool AreCoordsOnChunkBoundary(int a_BlockX, int a_BlockY, int a_BlockZ)
+	{
+		return ( // Are we on a chunk boundary? +- 2 because of LinkedPowered blocks
+			((a_BlockX % cChunkDef::Width) <= 1) ||
+			((a_BlockX % cChunkDef::Width) >= 14) ||
+			((a_BlockZ % cChunkDef::Width) <= 1) ||
+			((a_BlockZ % cChunkDef::Width) >= 14)
+		);
+	}
 };
 
 
diff --git a/src/Simulator/VaporizeFluidSimulator.cpp b/src/Simulator/VaporizeFluidSimulator.cpp
index 4206c64d1..191770273 100644
--- a/src/Simulator/VaporizeFluidSimulator.cpp
+++ b/src/Simulator/VaporizeFluidSimulator.cpp
@@ -35,7 +35,7 @@ void cVaporizeFluidSimulator::AddBlock(int a_BlockX, int a_BlockY, int a_BlockZ,
 	)
 	{
 		a_Chunk->SetBlock(RelX, a_BlockY, RelZ, E_BLOCK_AIR, 0);
-		a_Chunk->BroadcastSoundEffect("random.fizz", a_BlockX * 8, a_BlockY * 8, a_BlockZ * 8, 1.0f, 0.6f);
+		a_Chunk->BroadcastSoundEffect("random.fizz", (double)a_BlockX, (double)a_BlockY, (double)a_BlockZ, 1.0f, 0.6f);
 	}
 }
 
diff --git a/src/UI/Window.cpp b/src/UI/Window.cpp
index ebdc1aea8..19db01b7a 100644
--- a/src/UI/Window.cpp
+++ b/src/UI/Window.cpp
@@ -905,21 +905,23 @@ void cEnchantingWindow::GetBlockPos(int & a_PosX, int & a_PosY, int & a_PosZ)
 // cChestWindow:
 
 cChestWindow::cChestWindow(cChestEntity * a_Chest) :
-	cWindow(wtChest, "Chest"),
+	cWindow(wtChest, (a_Chest->GetBlockType() == E_BLOCK_CHEST) ? "Chest" : "Trapped Chest"),
 	m_World(a_Chest->GetWorld()),
 	m_BlockX(a_Chest->GetPosX()),
 	m_BlockY(a_Chest->GetPosY()),
-	m_BlockZ(a_Chest->GetPosZ())
+	m_BlockZ(a_Chest->GetPosZ()),
+	m_PrimaryChest(a_Chest),
+	m_SecondaryChest(NULL)
 {
 	m_SlotAreas.push_back(new cSlotAreaChest(a_Chest, *this));
 	m_SlotAreas.push_back(new cSlotAreaInventory(*this));
 	m_SlotAreas.push_back(new cSlotAreaHotBar(*this));
 	
 	// Play the opening sound:
-	m_World->BroadcastSoundEffect("random.chestopen", m_BlockX * 8, m_BlockY * 8, m_BlockZ * 8, 1, 1);
+	m_World->BroadcastSoundEffect("random.chestopen", (double)m_BlockX, (double)m_BlockY, (double)m_BlockZ, 1, 1);
 
 	// Send out the chest-open packet:
-	m_World->BroadcastBlockAction(m_BlockX, m_BlockY, m_BlockZ, 1, 1, E_BLOCK_CHEST);
+	m_World->BroadcastBlockAction(m_BlockX, m_BlockY, m_BlockZ, 1, 1, a_Chest->GetBlockType());
 }
 
 
@@ -927,11 +929,13 @@ cChestWindow::cChestWindow(cChestEntity * a_Chest) :
 
 
 cChestWindow::cChestWindow(cChestEntity * a_PrimaryChest, cChestEntity * a_SecondaryChest) :
-	cWindow(wtChest, "Double Chest"),
+	cWindow(wtChest, (a_PrimaryChest->GetBlockType() == E_BLOCK_CHEST) ? "Double Chest" : "Double Trapped Chest"),
 	m_World(a_PrimaryChest->GetWorld()),
 	m_BlockX(a_PrimaryChest->GetPosX()),
 	m_BlockY(a_PrimaryChest->GetPosY()),
-	m_BlockZ(a_PrimaryChest->GetPosZ())
+	m_BlockZ(a_PrimaryChest->GetPosZ()),
+	m_PrimaryChest(a_PrimaryChest),
+	m_SecondaryChest(a_SecondaryChest)
 {
 	m_SlotAreas.push_back(new cSlotAreaDoubleChest(a_PrimaryChest, a_SecondaryChest, *this));
 	m_SlotAreas.push_back(new cSlotAreaInventory(*this));
@@ -940,10 +944,55 @@ cChestWindow::cChestWindow(cChestEntity * a_PrimaryChest, cChestEntity * a_Secon
 	m_ShouldDistributeToHotbarFirst = false;
 	
 	// Play the opening sound:
-	m_World->BroadcastSoundEffect("random.chestopen", m_BlockX * 8, m_BlockY * 8, m_BlockZ * 8, 1, 1);
+	m_World->BroadcastSoundEffect("random.chestopen", (double)m_BlockX, (double)m_BlockY, (double)m_BlockZ, 1, 1);
 
 	// Send out the chest-open packet:
-	m_World->BroadcastBlockAction(m_BlockX, m_BlockY, m_BlockZ, 1, 1, E_BLOCK_CHEST);
+	m_World->BroadcastBlockAction(m_BlockX, m_BlockY, m_BlockZ, 1, 1, a_PrimaryChest->GetBlockType());
+}
+
+
+
+
+
+void cChestWindow::OpenedByPlayer(cPlayer & a_Player)
+{
+	int ChunkX, ChunkZ;
+
+	m_PrimaryChest->SetNumberOfPlayers(m_PrimaryChest->GetNumberOfPlayers() + 1);
+	cChunkDef::BlockToChunk(m_PrimaryChest->GetPosX(), m_PrimaryChest->GetPosZ(), ChunkX, ChunkZ);
+	m_PrimaryChest->GetWorld()->MarkRedstoneDirty(ChunkX, ChunkZ);
+
+	if (m_SecondaryChest != NULL)
+	{
+		m_SecondaryChest->SetNumberOfPlayers(m_SecondaryChest->GetNumberOfPlayers() + 1);
+		cChunkDef::BlockToChunk(m_SecondaryChest->GetPosX(), m_SecondaryChest->GetPosZ(), ChunkX, ChunkZ);
+		m_SecondaryChest->GetWorld()->MarkRedstoneDirty(ChunkX, ChunkZ);
+	}
+
+	cWindow::OpenedByPlayer(a_Player);
+}
+
+
+
+
+
+bool cChestWindow::ClosedByPlayer(cPlayer & a_Player, bool a_CanRefuse)
+{
+	int ChunkX, ChunkZ;
+
+	m_PrimaryChest->SetNumberOfPlayers(m_PrimaryChest->GetNumberOfPlayers() - 1);
+	cChunkDef::BlockToChunk(m_PrimaryChest->GetPosX(), m_PrimaryChest->GetPosZ(), ChunkX, ChunkZ);
+	m_PrimaryChest->GetWorld()->MarkRedstoneDirty(ChunkX, ChunkZ);
+
+	if (m_SecondaryChest != NULL)
+	{
+		m_SecondaryChest->SetNumberOfPlayers(m_SecondaryChest->GetNumberOfPlayers() - 1);
+		cChunkDef::BlockToChunk(m_SecondaryChest->GetPosX(), m_SecondaryChest->GetPosZ(), ChunkX, ChunkZ);
+		m_SecondaryChest->GetWorld()->MarkRedstoneDirty(ChunkX, ChunkZ);
+	}
+
+	cWindow::ClosedByPlayer(a_Player, a_CanRefuse);
+	return true;
 }
 
 
@@ -953,9 +1002,9 @@ cChestWindow::cChestWindow(cChestEntity * a_PrimaryChest, cChestEntity * a_Secon
 cChestWindow::~cChestWindow()
 {
 	// Send out the chest-close packet:
-	m_World->BroadcastBlockAction(m_BlockX, m_BlockY, m_BlockZ, 1, 0, E_BLOCK_CHEST);
+	m_World->BroadcastBlockAction(m_BlockX, m_BlockY, m_BlockZ, 1, 0, m_PrimaryChest->GetBlockType());
 
-	m_World->BroadcastSoundEffect("random.chestclosed", m_BlockX * 8, m_BlockY * 8, m_BlockZ * 8, 1, 1);
+	m_World->BroadcastSoundEffect("random.chestclosed", (double)m_BlockX, (double)m_BlockY, (double)m_BlockZ, 1, 1);
 }
 
 
@@ -966,7 +1015,7 @@ cChestWindow::~cChestWindow()
 // cDropSpenserWindow:
 
 cDropSpenserWindow::cDropSpenserWindow(int a_BlockX, int a_BlockY, int a_BlockZ, cDropSpenserEntity * a_DropSpenser) :
-	cWindow(wtDropSpenser, "Dropspenser")
+	cWindow(wtDropSpenser, (a_DropSpenser->GetBlockType() == E_BLOCK_DISPENSER) ? "Dispenser" : "Dropper")
 {
 	m_ShouldDistributeToHotbarFirst = false;
 	m_SlotAreas.push_back(new cSlotAreaItemGrid(a_DropSpenser->GetContents(), *this));
@@ -993,7 +1042,7 @@ cEnderChestWindow::cEnderChestWindow(cEnderChestEntity * a_EnderChest) :
 	m_SlotAreas.push_back(new cSlotAreaHotBar(*this));
 	
 	// Play the opening sound:
-	m_World->BroadcastSoundEffect("random.chestopen", m_BlockX * 8, m_BlockY * 8, m_BlockZ * 8, 1, 1);
+	m_World->BroadcastSoundEffect("random.chestopen", (double)m_BlockX, (double)m_BlockY, (double)m_BlockZ, 1, 1);
 
 	// Send out the chest-open packet:
 	m_World->BroadcastBlockAction(m_BlockX, m_BlockY, m_BlockZ, 1, 1, E_BLOCK_ENDER_CHEST);
@@ -1009,7 +1058,7 @@ cEnderChestWindow::~cEnderChestWindow()
 	m_World->BroadcastBlockAction(m_BlockX, m_BlockY, m_BlockZ, 1, 0, E_BLOCK_ENDER_CHEST);
 
 	// Play the closing sound
-	m_World->BroadcastSoundEffect("random.chestclosed", m_BlockX * 8, m_BlockY * 8, m_BlockZ * 8, 1, 1);
+	m_World->BroadcastSoundEffect("random.chestclosed", (double)m_BlockX, (double)m_BlockY, (double)m_BlockZ, 1, 1);
 }
 
 
diff --git a/src/UI/Window.h b/src/UI/Window.h
index 542dccb88..b170a9d78 100644
--- a/src/UI/Window.h
+++ b/src/UI/Window.h
@@ -114,7 +114,7 @@ public:
 		const cItem & a_ClickedItem
 	);
 
-	void OpenedByPlayer(cPlayer & a_Player);
+	virtual void OpenedByPlayer(cPlayer & a_Player);
 	
 	/// Called when a player closes this window; notifies all slot areas. Returns true if close accepted
 	virtual bool ClosedByPlayer(cPlayer & a_Player, bool a_CanRefuse);
@@ -327,10 +327,15 @@ public:
 	cChestWindow(cChestEntity * a_Chest);
 	cChestWindow(cChestEntity * a_PrimaryChest, cChestEntity * a_SecondaryChest);
 	~cChestWindow();
+
+	virtual bool ClosedByPlayer(cPlayer & a_Player, bool a_CanRefuse) override;
+	virtual void OpenedByPlayer(cPlayer & a_Player) override;
 	
 protected:
 	cWorld * m_World;
 	int m_BlockX, m_BlockY, m_BlockZ;  // Position of the chest, for the window-close packet
+	cChestEntity * m_PrimaryChest;
+	cChestEntity * m_SecondaryChest;
 } ;
 
 
diff --git a/src/World.cpp b/src/World.cpp
index f91a15260..ba8add8f0 100644
--- a/src/World.cpp
+++ b/src/World.cpp
@@ -389,8 +389,8 @@ void cWorld::InitializeSpawn(void)
 		IniFile.WriteFile(m_IniFileName);
 	}
 
-	int ChunkX = 0, ChunkY = 0, ChunkZ = 0;
-	BlockToChunk((int)m_SpawnX, (int)m_SpawnY, (int)m_SpawnZ, ChunkX, ChunkY, ChunkZ);
+	int ChunkX = 0, ChunkZ = 0;
+	cChunkDef::BlockToChunk((int)m_SpawnX, (int)m_SpawnZ, ChunkX, ChunkZ);
 	
 	// For the debugging builds, don't make the server build too much world upon start:
 	#if defined(_DEBUG) || defined(ANDROID_NDK)
@@ -1088,7 +1088,7 @@ void cWorld::DoExplosionAt(double a_ExplosionSize, double a_BlockX, double a_Blo
 	Vector3d explosion_pos = Vector3d(a_BlockX, a_BlockY, a_BlockZ);
 	cVector3iArray BlocksAffected;
 	m_ChunkMap->DoExplosionAt(a_ExplosionSize, a_BlockX, a_BlockY, a_BlockZ, BlocksAffected);
-	BroadcastSoundEffect("random.explode", (int)floor(a_BlockX * 8), (int)floor(a_BlockY * 8), (int)floor(a_BlockZ * 8), 1.0f, 0.6f);
+	BroadcastSoundEffect("random.explode", (double)a_BlockX, (double)a_BlockY, (double)a_BlockZ, 1.0f, 0.6f);
 	{
 		cCSLock Lock(m_CSPlayers);
 		for (cPlayerList::iterator itr = m_Players.begin(); itr != m_Players.end(); ++itr)
@@ -2074,9 +2074,9 @@ void cWorld::BroadcastDisplayObjective(const AString & a_Objective, cScoreboard:
 
 
 
-void cWorld::BroadcastSoundEffect(const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch, const cClientHandle * a_Exclude)
+void cWorld::BroadcastSoundEffect(const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch, const cClientHandle * a_Exclude)
 {
-	m_ChunkMap->BroadcastSoundEffect(a_SoundName, a_SrcX, a_SrcY, a_SrcZ, a_Volume, a_Pitch, a_Exclude);
+	m_ChunkMap->BroadcastSoundEffect(a_SoundName, a_X, a_Y, a_Z, a_Volume, a_Pitch, a_Exclude);
 }
 
 
@@ -2182,9 +2182,18 @@ void cWorld::SendBlockEntity(int a_BlockX, int a_BlockY, int a_BlockZ, cClientHa
 
 
 
-void cWorld::MarkChunkDirty (int a_ChunkX, int a_ChunkZ)
+void cWorld::MarkRedstoneDirty(int a_ChunkX, int a_ChunkZ)
 {
-	m_ChunkMap->MarkChunkDirty (a_ChunkX, a_ChunkZ);
+	m_ChunkMap->MarkRedstoneDirty(a_ChunkX, a_ChunkZ);
+}
+
+
+
+
+
+void cWorld::MarkChunkDirty(int a_ChunkX, int a_ChunkZ, bool a_MarkRedstoneDirty)
+{
+	m_ChunkMap->MarkChunkDirty(a_ChunkX, a_ChunkZ, a_MarkRedstoneDirty);
 }
 
 
@@ -2989,7 +2998,7 @@ int cWorld::SpawnMobFinalize(cMonster * a_Monster)
 
 
 
-int cWorld::CreateProjectile(double a_PosX, double a_PosY, double a_PosZ, cProjectileEntity::eKind a_Kind, cEntity * a_Creator, const cItem & a_Item, const Vector3d * a_Speed)
+int cWorld::CreateProjectile(double a_PosX, double a_PosY, double a_PosZ, cProjectileEntity::eKind a_Kind, cEntity * a_Creator, const cItem * a_Item, const Vector3d * a_Speed)
 {
 	cProjectileEntity * Projectile = cProjectileEntity::Create(a_Kind, a_Creator, a_PosX, a_PosY, a_PosZ, a_Item, a_Speed);
 	if (Projectile == NULL)
diff --git a/src/World.h b/src/World.h
index f903ff5be..5bb0e640f 100644
--- a/src/World.h
+++ b/src/World.h
@@ -224,7 +224,7 @@ public:
 	void BroadcastScoreboardObjective    (const AString & a_Name, const AString & a_DisplayName, Byte a_Mode);
 	void BroadcastScoreUpdate            (const AString & a_Objective, const AString & a_Player, cObjective::Score a_Score, Byte a_Mode);
 	void BroadcastDisplayObjective       (const AString & a_Objective, cScoreboard::eDisplaySlot a_Display);
-	void BroadcastSoundEffect            (const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch, const cClientHandle * a_Exclude = NULL);   // tolua_export a_Src coords are Block * 8
+	void BroadcastSoundEffect            (const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch, const cClientHandle * a_Exclude = NULL);   // tolua_export
 	void BroadcastSoundParticleEffect    (int a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data, const cClientHandle * a_Exclude = NULL); // tolua_export
 	void BroadcastSpawnEntity            (cEntity & a_Entity, const cClientHandle * a_Exclude = NULL);
 	void BroadcastTeleportEntity         (const cEntity & a_Entity, const cClientHandle * a_Exclude = NULL);
@@ -241,7 +241,8 @@ public:
 	/** If there is a block entity at the specified coords, sends it to the client specified */
 	void SendBlockEntity(int a_BlockX, int a_BlockY, int a_BlockZ, cClientHandle & a_Client);
 	
-	void MarkChunkDirty (int a_ChunkX, int a_ChunkZ);
+	void MarkRedstoneDirty(int a_ChunkX, int a_ChunkZ);
+	void MarkChunkDirty (int a_ChunkX, int a_ChunkZ, bool a_MarkRedstoneDirty = false);
 	void MarkChunkSaving(int a_ChunkX, int a_ChunkZ);
 	void MarkChunkSaved (int a_ChunkX, int a_ChunkZ);
 	
@@ -634,18 +635,6 @@ public:
 	
 	// tolua_end
 	
-	inline static void BlockToChunk( int a_X, int a_Y, int a_Z, int & a_ChunkX, int & a_ChunkY, int & a_ChunkZ )
-	{
-		// TODO: Use floor() instead of weird if statements
-		// Also fix Y
-		(void)a_Y; // not unused anymore
-		a_ChunkX = a_X/cChunkDef::Width;
-		if(a_X < 0 && a_X % cChunkDef::Width != 0) a_ChunkX--;
-		a_ChunkY = 0;
-		a_ChunkZ = a_Z/cChunkDef::Width;
-		if(a_Z < 0 && a_Z % cChunkDef::Width != 0) a_ChunkZ--;
-	}
-
 	/** Saves all chunks immediately. Dangerous interface, may deadlock, use QueueSaveAllChunks() instead */
 	void SaveAllChunks(void);
 	
@@ -762,7 +751,7 @@ public:
 	/** Creates a projectile of the specified type. Returns the projectile's EntityID if successful, <0 otherwise
 	Item parameter used currently for Fireworks to correctly set entity metadata based on item metadata
 	*/
-	int CreateProjectile(double a_PosX, double a_PosY, double a_PosZ, cProjectileEntity::eKind a_Kind, cEntity * a_Creator, const cItem & a_Item, const Vector3d * a_Speed = NULL);  // tolua_export
+	int CreateProjectile(double a_PosX, double a_PosY, double a_PosZ, cProjectileEntity::eKind a_Kind, cEntity * a_Creator, const cItem * a_Item, const Vector3d * a_Speed = NULL);  // tolua_export
 	
 	/** Returns a random number from the m_TickRand in range [0 .. a_Range]. To be used only in the tick thread! */
 	int GetTickRandomNumber(unsigned a_Range) { return (int)(m_TickRand.randInt(a_Range)); }
diff --git a/src/WorldStorage/NBTChunkSerializer.cpp b/src/WorldStorage/NBTChunkSerializer.cpp
index fe65fa723..82c8df947 100644
--- a/src/WorldStorage/NBTChunkSerializer.cpp
+++ b/src/WorldStorage/NBTChunkSerializer.cpp
@@ -176,10 +176,10 @@ void cNBTChunkSerializer::AddBasicTileEntity(cBlockEntity * a_Entity, const char
 
 
 
-void cNBTChunkSerializer::AddChestEntity(cChestEntity * a_Entity)
+void cNBTChunkSerializer::AddChestEntity(cChestEntity * a_Entity, BLOCKTYPE a_ChestType)
 {
 	m_Writer.BeginCompound("");
-		AddBasicTileEntity(a_Entity, "Chest");
+		AddBasicTileEntity(a_Entity, (a_ChestType == E_BLOCK_CHEST) ? "Chest" : "TrappedChest");
 		m_Writer.BeginList("Items", TAG_Compound);
 			AddItemGrid(a_Entity->GetContents());
 		m_Writer.EndList();
@@ -824,19 +824,21 @@ void cNBTChunkSerializer::BlockEntity(cBlockEntity * a_Entity)
 	// Add tile-entity into NBT:
 	switch (a_Entity->GetBlockType())
 	{
-		case E_BLOCK_CHEST:         AddChestEntity       ((cChestEntity *)        a_Entity); break;
-		case E_BLOCK_DISPENSER:     AddDispenserEntity   ((cDispenserEntity *)    a_Entity); break;
-		case E_BLOCK_DROPPER:       AddDropperEntity     ((cDropperEntity *)      a_Entity); break;
-		case E_BLOCK_ENDER_CHEST:   /* No need to be saved */                                break;
-		case E_BLOCK_FLOWER_POT:    AddFlowerPotEntity   ((cFlowerPotEntity *)    a_Entity); break;
-		case E_BLOCK_FURNACE:       AddFurnaceEntity     ((cFurnaceEntity *)      a_Entity); break;
-		case E_BLOCK_HOPPER:        AddHopperEntity      ((cHopperEntity *)       a_Entity); break;
-		case E_BLOCK_SIGN_POST:
-		case E_BLOCK_WALLSIGN:      AddSignEntity        ((cSignEntity *)         a_Entity); break;
-		case E_BLOCK_HEAD:          AddMobHeadEntity     ((cMobHeadEntity *)      a_Entity); break;
-		case E_BLOCK_NOTE_BLOCK:    AddNoteEntity        ((cNoteEntity *)         a_Entity); break;
-		case E_BLOCK_JUKEBOX:       AddJukeboxEntity     ((cJukeboxEntity *)      a_Entity); break;
-		case E_BLOCK_COMMAND_BLOCK: AddCommandBlockEntity((cCommandBlockEntity *) a_Entity); break;
+		case E_BLOCK_CHEST:         AddChestEntity       ((cChestEntity *)       a_Entity, a_Entity->GetBlockType()); break;
+		case E_BLOCK_COMMAND_BLOCK: AddCommandBlockEntity((cCommandBlockEntity *)a_Entity); break;
+		case E_BLOCK_DISPENSER:     AddDispenserEntity   ((cDispenserEntity *)   a_Entity); break;
+		case E_BLOCK_DROPPER:       AddDropperEntity     ((cDropperEntity *)     a_Entity); break;
+		case E_BLOCK_ENDER_CHEST:   /* No data to be saved */                               break;
+		case E_BLOCK_FLOWER_POT:    AddFlowerPotEntity   ((cFlowerPotEntity *)   a_Entity); break;
+		case E_BLOCK_FURNACE:       AddFurnaceEntity     ((cFurnaceEntity *)     a_Entity); break;
+		case E_BLOCK_HEAD:          AddMobHeadEntity     ((cMobHeadEntity *)     a_Entity); break;
+		case E_BLOCK_HOPPER:        AddHopperEntity      ((cHopperEntity *)      a_Entity); break;
+		case E_BLOCK_JUKEBOX:       AddJukeboxEntity     ((cJukeboxEntity *)     a_Entity); break;
+		case E_BLOCK_LIT_FURNACE:   AddFurnaceEntity     ((cFurnaceEntity *)     a_Entity); break;
+		case E_BLOCK_NOTE_BLOCK:    AddNoteEntity        ((cNoteEntity *)        a_Entity); break;
+		case E_BLOCK_SIGN_POST:     AddSignEntity        ((cSignEntity *)        a_Entity); break;
+		case E_BLOCK_TRAPPED_CHEST: AddChestEntity       ((cChestEntity *)       a_Entity, a_Entity->GetBlockType()); break;
+		case E_BLOCK_WALLSIGN:      AddSignEntity        ((cSignEntity *)        a_Entity); break;
 
 		default:
 		{
diff --git a/src/WorldStorage/NBTChunkSerializer.h b/src/WorldStorage/NBTChunkSerializer.h
index 9c87c11ca..710a06a70 100644
--- a/src/WorldStorage/NBTChunkSerializer.h
+++ b/src/WorldStorage/NBTChunkSerializer.h
@@ -93,7 +93,7 @@ protected:
 	
 	// Block entities:
 	void AddBasicTileEntity(cBlockEntity *     a_Entity, const char * a_EntityTypeID);
-	void AddChestEntity    (cChestEntity *     a_Entity);
+	void AddChestEntity    (cChestEntity *     a_Entity, BLOCKTYPE a_ChestType);
 	void AddDispenserEntity(cDispenserEntity * a_Entity);
 	void AddDropperEntity  (cDropperEntity *   a_Entity);
 	void AddFurnaceEntity  (cFurnaceEntity *   a_Furnace);
diff --git a/src/WorldStorage/WSSAnvil.cpp b/src/WorldStorage/WSSAnvil.cpp
index 3fac01614..0319173f8 100644
--- a/src/WorldStorage/WSSAnvil.cpp
+++ b/src/WorldStorage/WSSAnvil.cpp
@@ -583,7 +583,7 @@ void cWSSAnvil::LoadBlockEntitiesFromNBT(cBlockEntityList & a_BlockEntities, con
 		}
 		if (strncmp(a_NBT.GetData(sID), "Chest", a_NBT.GetDataLength(sID)) == 0)
 		{
-			LoadChestFromNBT(a_BlockEntities, a_NBT, Child);
+			LoadChestFromNBT(a_BlockEntities, a_NBT, Child, E_BLOCK_CHEST);
 		}
 		else if (strncmp(a_NBT.GetData(sID), "Control", a_NBT.GetDataLength(sID)) == 0)
 		{
@@ -625,6 +625,10 @@ void cWSSAnvil::LoadBlockEntitiesFromNBT(cBlockEntityList & a_BlockEntities, con
 		{
 			LoadDispenserFromNBT(a_BlockEntities, a_NBT, Child);
 		}
+		else if (strncmp(a_NBT.GetData(sID), "TrappedChest", a_NBT.GetDataLength(sID)) == 0)
+		{
+			LoadChestFromNBT(a_BlockEntities, a_NBT, Child, E_BLOCK_TRAPPED_CHEST);
+		}
 		// TODO: Other block entities
 	}  // for Child - tag children
 }
@@ -741,7 +745,7 @@ void cWSSAnvil::LoadItemGridFromNBT(cItemGrid & a_ItemGrid, const cParsedNBT & a
 
 
 
-void cWSSAnvil::LoadChestFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx)
+void cWSSAnvil::LoadChestFromNBT(cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_ChestType)
 {
 	ASSERT(a_NBT.GetType(a_TagIdx) == TAG_Compound);
 	int x, y, z;
@@ -754,7 +758,7 @@ void cWSSAnvil::LoadChestFromNBT(cBlockEntityList & a_BlockEntities, const cPars
 	{
 		return;  // Make it an empty chest - the chunk loader will provide an empty cChestEntity for this
 	}
-	std::auto_ptr<cChestEntity> Chest(new cChestEntity(x, y, z, m_World));
+	std::auto_ptr<cChestEntity> Chest(new cChestEntity(x, y, z, m_World, a_ChestType));
 	LoadItemGridFromNBT(Chest->GetContents(), a_NBT, Items);
 	a_BlockEntities.push_back(Chest.release());
 }
@@ -2110,10 +2114,11 @@ void cWSSAnvil::LoadPigFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NB
 void cWSSAnvil::LoadSheepFromNBT(cEntityList & a_Entities, const cParsedNBT & a_NBT, int a_TagIdx)
 {
 	int ColorIdx = a_NBT.FindChildByName(a_TagIdx, "Color");
-
-	if (ColorIdx < 0) { return; }
-
-	int Color = (int)a_NBT.GetByte(ColorIdx);
+	int Color = -1;
+	if (ColorIdx > 0)
+	{
+		Color = (int)a_NBT.GetByte(ColorIdx);
+	}
 
 	std::auto_ptr<cSheep> Monster(new cSheep(Color));
 	if (!LoadEntityBaseFromNBT(*Monster.get(), a_NBT, a_TagIdx))
@@ -2126,6 +2131,12 @@ void cWSSAnvil::LoadSheepFromNBT(cEntityList & a_Entities, const cParsedNBT & a_
 		return;
 	}
 
+	int ShearedIdx = a_NBT.FindChildByName(a_TagIdx, "Sheared");
+	if (ShearedIdx > 0)
+	{
+		Monster->SetSheared(a_NBT.GetByte(ShearedIdx) != 0);
+	}
+
 	a_Entities.push_back(Monster.release());
 }
 
diff --git a/src/WorldStorage/WSSAnvil.h b/src/WorldStorage/WSSAnvil.h
index 545b00509..5b629f017 100644
--- a/src/WorldStorage/WSSAnvil.h
+++ b/src/WorldStorage/WSSAnvil.h
@@ -133,7 +133,7 @@ protected:
 	*/
 	void LoadItemGridFromNBT(cItemGrid & a_ItemGrid, const cParsedNBT & a_NBT, int a_ItemsTagIdx, int s_SlotOffset = 0);
 	
-	void LoadChestFromNBT       (cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx);
+	void LoadChestFromNBT       (cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx, BLOCKTYPE a_ChestType);
 	void LoadDispenserFromNBT   (cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx);
 	void LoadDropperFromNBT     (cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx);
 	void LoadFlowerPotFromNBT   (cBlockEntityList & a_BlockEntities, const cParsedNBT & a_NBT, int a_TagIdx);
diff --git a/src/WorldStorage/WSSCompact.cpp b/src/WorldStorage/WSSCompact.cpp
index a853f6ec9..a3ba443fd 100644
--- a/src/WorldStorage/WSSCompact.cpp
+++ b/src/WorldStorage/WSSCompact.cpp
@@ -273,7 +273,7 @@ void cWSSCompact::LoadEntitiesFromJson(Json::Value & a_Value, cEntityList & a_En
 	{
 		for (Json::Value::iterator itr = AllChests.begin(); itr != AllChests.end(); ++itr )
 		{
-			std::auto_ptr<cChestEntity> ChestEntity(new cChestEntity(0, 0, 0, a_World));
+			std::auto_ptr<cChestEntity> ChestEntity(new cChestEntity(0, 0, 0, a_World, E_BLOCK_CHEST));
 			if (!ChestEntity->LoadFromJson(*itr))
 			{
 				LOGWARNING("ERROR READING CHEST FROM JSON!" );