17 files changed, 176 insertions, 171 deletions

diff --git a/src/BlockEntities/BeaconEntity.h b/src/BlockEntities/BeaconEntity.h
index 8c2dad254..d1db3a68f 100644
--- a/src/BlockEntities/BeaconEntity.h
+++ b/src/BlockEntities/BeaconEntity.h
@@ -32,6 +32,8 @@ class cBeaconEntity :
 public:
 	// tolua_end
 
+	BLOCKENTITY_PROTODEF(cBeaconEntity);
+
 	cBeaconEntity(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World);
 
 	// cBlockEntity overrides:
diff --git a/src/BlockEntities/BlockEntity.h b/src/BlockEntities/BlockEntity.h
index 54ab40f3e..b04d20340 100644
--- a/src/BlockEntities/BlockEntity.h
+++ b/src/BlockEntities/BlockEntity.h
@@ -5,6 +5,28 @@
 
 
 
+/** Place this macro in the declaration of each cBlockEntity descendant. */
+#define BLOCKENTITY_PROTODEF(classname) \
+	virtual bool IsA(const char * a_ClassName) const override \
+	{ \
+		return ((strcmp(a_ClassName, #classname) == 0) || super::IsA(a_ClassName)); \
+	} \
+	virtual const char * GetClass(void) const override \
+	{ \
+		return #classname; \
+	} \
+	static const char * GetClassStatic(void) \
+	{ \
+		return #classname; \
+	} \
+	virtual const char * GetParentClass(void) const override \
+	{ \
+		return super::GetClass(); \
+	}
+
+
+
+
 
 namespace Json
 {
@@ -55,6 +77,15 @@ public:
 	{
 		return "cBlockEntity";
 	}
+
+	/** Returns true if the object is the specified class, or its descendant. */
+	virtual bool IsA(const char * a_ClassName) const { return (strcmp(a_ClassName, "cBlockEntity") == 0); }
+
+	/** Returns the name of the tompost class (the most descendant). Used for Lua bindings to push the correct object type. */
+	virtual const char * GetClass(void) const { return GetClassStatic(); }
+
+	/** Returns the name of the parent class, or empty string if no parent class. */
+	virtual const char * GetParentClass(void) const { return ""; }
 	
 	// tolua_begin
 	
diff --git a/src/BlockEntities/BlockEntityWithItems.h b/src/BlockEntities/BlockEntityWithItems.h
index 00173cbcb..cb7bc2fb4 100644
--- a/src/BlockEntities/BlockEntityWithItems.h
+++ b/src/BlockEntities/BlockEntityWithItems.h
@@ -25,10 +25,12 @@ class cBlockEntityWithItems :
 	public cBlockEntityWindowOwner
 {
 	typedef cBlockEntity super;
-	
+
 public:
 	// tolua_end
 	
+	BLOCKENTITY_PROTODEF(cBlockEntityWithItems);
+	
 	cBlockEntityWithItems(
 		BLOCKTYPE a_BlockType,                      // Type of the block that the entity represents
 		int a_BlockX, int a_BlockY, int a_BlockZ,   // Position of the block entity
diff --git a/src/BlockEntities/ChestEntity.h b/src/BlockEntities/ChestEntity.h
index af5d851a8..09fffb923 100644
--- a/src/BlockEntities/ChestEntity.h
+++ b/src/BlockEntities/ChestEntity.h
@@ -33,13 +33,13 @@ public:
 	
 	// tolua_end
 	
+	BLOCKENTITY_PROTODEF(cChestEntity);
+	
 	/** Constructor used for normal operation */
 	cChestEntity(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World, BLOCKTYPE a_Type);
 	
 	virtual ~cChestEntity();
 
-	static const char * GetClassStatic(void) { return "cChestEntity"; }
-	
 	// cBlockEntity overrides:
 	virtual void SendTo(cClientHandle & a_Client) override;
 	virtual void UsedBy(cPlayer * a_Player) override;
diff --git a/src/BlockEntities/CommandBlockEntity.h b/src/BlockEntities/CommandBlockEntity.h
index 939f38610..217390293 100644
--- a/src/BlockEntities/CommandBlockEntity.h
+++ b/src/BlockEntities/CommandBlockEntity.h
@@ -36,6 +36,8 @@ public:
 
 	// tolua_end
 	
+	BLOCKENTITY_PROTODEF(cCommandBlockEntity);
+	
 	/// Creates a new empty command block entity
 	cCommandBlockEntity(int a_X, int a_Y, int a_Z, cWorld * a_World);
 
diff --git a/src/BlockEntities/DispenserEntity.h b/src/BlockEntities/DispenserEntity.h
index b33d08342..5ba87b716 100644
--- a/src/BlockEntities/DispenserEntity.h
+++ b/src/BlockEntities/DispenserEntity.h
@@ -17,11 +17,11 @@ public:
 
 	// tolua_end
 
+	BLOCKENTITY_PROTODEF(cDispenserEntity);
+	
 	/** Constructor used for normal operation */
 	cDispenserEntity(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World);
 
-	static const char * GetClassStatic(void) { return "cDispenserEntity"; }
-
 	// tolua_begin
 	
 	/** Spawns a projectile of the given kind in front of the dispenser with the specified speed. */
diff --git a/src/BlockEntities/DropSpenserEntity.h b/src/BlockEntities/DropSpenserEntity.h
index 23f0ae89a..f77a28c28 100644
--- a/src/BlockEntities/DropSpenserEntity.h
+++ b/src/BlockEntities/DropSpenserEntity.h
@@ -45,11 +45,11 @@ public:
 	
 	// tolua_end
 	
+	BLOCKENTITY_PROTODEF(cDropSpenserEntity);
+	
 	cDropSpenserEntity(BLOCKTYPE a_BlockType, int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World);
 	virtual ~cDropSpenserEntity();
 	
-	static const char * GetClassStatic(void) { return "cDropSpenserEntity"; }
-	
 	// cBlockEntity overrides:
 	virtual bool Tick(float a_Dt, cChunk & a_Chunk) override;
 	virtual void SendTo(cClientHandle & a_Client) override;
diff --git a/src/BlockEntities/DropperEntity.h b/src/BlockEntities/DropperEntity.h
index 8e07bc6f8..91adf660f 100644
--- a/src/BlockEntities/DropperEntity.h
+++ b/src/BlockEntities/DropperEntity.h
@@ -25,11 +25,11 @@ public:
 
 	// tolua_end
 	
+	BLOCKENTITY_PROTODEF(cDropperEntity);
+	
 	/// Constructor used for normal operation
 	cDropperEntity(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World);
 
-	static const char * GetClassStatic(void) { return "cDropperEntity"; }
-
 protected:
 	// cDropSpenserEntity overrides:
 	virtual void DropSpenseFromSlot(cChunk & a_Chunk, int a_SlotNum) override;
diff --git a/src/BlockEntities/EnderChestEntity.h b/src/BlockEntities/EnderChestEntity.h
index 2719eb5e4..17abd880a 100644
--- a/src/BlockEntities/EnderChestEntity.h
+++ b/src/BlockEntities/EnderChestEntity.h
@@ -18,11 +18,11 @@ class cEnderChestEntity :
 public:
 	// tolua_end
 	
+	BLOCKENTITY_PROTODEF(cEnderChestEntity);
+	
 	cEnderChestEntity(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World);
 	virtual ~cEnderChestEntity();
 
-	static const char * GetClassStatic(void) { return "cEnderChestEntity"; }
-	
 	// cBlockEntity overrides:
 	virtual void UsedBy(cPlayer * a_Player) override;
 	virtual void SendTo(cClientHandle & a_Client) override { UNUSED(a_Client); }
diff --git a/src/BlockEntities/FlowerPotEntity.h b/src/BlockEntities/FlowerPotEntity.h
index b68d3b118..5b86621f5 100644
--- a/src/BlockEntities/FlowerPotEntity.h
+++ b/src/BlockEntities/FlowerPotEntity.h
@@ -36,6 +36,8 @@ public:
 
 	// tolua_end
 	
+	BLOCKENTITY_PROTODEF(cFlowerPotEntity);
+	
 	/** Creates a new flowerpot entity at the specified block coords. a_World may be NULL */
 	cFlowerPotEntity(int a_BlocX, int a_BlockY, int a_BlockZ, cWorld * a_World);
 	
@@ -59,8 +61,6 @@ public:
 
 	static bool IsFlower(short m_ItemType, short m_ItemData);
 
-	static const char * GetClassStatic(void) { return "cFlowerPotEntity"; }
-	
 private:
 
 	cItem m_Item;
diff --git a/src/BlockEntities/FurnaceEntity.cpp b/src/BlockEntities/FurnaceEntity.cpp
index 4452fc00a..284ac7de9 100644
--- a/src/BlockEntities/FurnaceEntity.cpp
+++ b/src/BlockEntities/FurnaceEntity.cpp
@@ -5,6 +5,7 @@
 #include "../UI/Window.h"
 #include "../Entities/Player.h"
 #include "../Root.h"
+#include "../Chunk.h"
 
 
 
@@ -13,8 +14,9 @@
 
 enum
 {
-	PROGRESSBAR_SMELTING = 0,
-	PROGRESSBAR_FUEL = 1,
+	PROGRESSBAR_FUEL = 0,
+	PROGRESSBAR_SMELTING = 2,
+	PROGRESSBAR_SMELTING_CONFIRM = 3,
 } ;
 
 
@@ -22,17 +24,15 @@ enum
 
 
 cFurnaceEntity::cFurnaceEntity(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, cWorld * a_World) :
-	super(E_BLOCK_FURNACE, a_BlockX, a_BlockY, a_BlockZ, ContentsWidth, ContentsHeight, a_World),
-	m_BlockType(a_BlockType),
+	super(a_BlockType, a_BlockX, a_BlockY, a_BlockZ, ContentsWidth, ContentsHeight, a_World),
 	m_BlockMeta(a_BlockMeta),
 	m_CurrentRecipe(NULL),
-	m_IsCooking((a_World->GetBlock(a_BlockX, a_BlockY, a_BlockZ) == E_BLOCK_LIT_FURNACE)),
+	m_IsDestroyed(false),
+	m_IsCooking(a_BlockType == E_BLOCK_LIT_FURNACE),
 	m_NeedCookTime(0),
 	m_TimeCooked(0),
 	m_FuelBurnTime(0),
-	m_TimeBurned(0),
-	m_LastProgressFuel(0),
-	m_LastProgressCook(0)
+	m_TimeBurned(0)
 {
 	m_Contents.AddListener(*this);
 }
@@ -57,27 +57,28 @@ cFurnaceEntity::~cFurnaceEntity()
 
 void cFurnaceEntity::UsedBy(cPlayer * a_Player)
 {
-	if (GetWindow() == NULL)
+	cWindow * Window = GetWindow();
+	if (Window == nullptr)
 	{
 		OpenWindow(new cFurnaceWindow(m_PosX, m_PosY, m_PosZ, this));
+		Window = GetWindow();
 	}
-	cWindow * Window = GetWindow();
-	if (Window != NULL)
+
+	if (Window != nullptr)
 	{
 		if (a_Player->GetWindow() != Window)
 		{
 			a_Player->OpenWindow(Window);
-			BroadcastProgress(PROGRESSBAR_FUEL,     (short)m_LastProgressFuel);
-			BroadcastProgress(PROGRESSBAR_SMELTING, (short)m_LastProgressCook);
 		}
 	}
+
+	UpdateProgressBars(true);
 }
 
 
 
 
 
-/// Restarts cooking. Used after the furnace is loaded from storage to set up the internal variables so that cooking continues, if it was active. Returns true if cooking.
 bool cFurnaceEntity::ContinueCooking(void)
 {
 	UpdateInput();
@@ -92,14 +93,16 @@ bool cFurnaceEntity::ContinueCooking(void)
 bool cFurnaceEntity::Tick(float a_Dt, cChunk & a_Chunk)
 {
 	UNUSED(a_Dt);
-	UNUSED(a_Chunk);
+
 	if (m_FuelBurnTime <= 0)
 	{
-		// No fuel is burning, reset progressbars and bail out
-		if ((m_LastProgressCook > 0) || (m_LastProgressFuel > 0))
-		{
-			UpdateProgressBars();
-		}
+		// If a furnace is out of fuel, the progress bar reverses at twice the speed of cooking.
+		m_TimeCooked = std::max((m_TimeCooked - 2), 0);
+
+		// Reset progressbars, block type, and bail out
+		m_BlockType = E_BLOCK_FURNACE;
+		a_Chunk.FastSetBlock(GetRelX(), m_PosY, GetRelZ(), E_BLOCK_FURNACE, m_BlockMeta);
+		UpdateProgressBars();
 		return false;
 	}
 
@@ -139,12 +142,12 @@ void cFurnaceEntity::SendTo(cClientHandle & a_Client)
 
 
 
-void cFurnaceEntity::BroadcastProgress(int a_ProgressbarID, short a_Value)
+void cFurnaceEntity::BroadcastProgress(short a_ProgressbarID, short a_Value)
 {
 	cWindow * Window = GetWindow();
 	if (Window != NULL)
 	{
-		Window->BroadcastProgress(a_ProgressbarID, a_Value);
+		Window->SetProperty(a_ProgressbarID, a_Value);
 	}
 }
 
@@ -152,7 +155,6 @@ void cFurnaceEntity::BroadcastProgress(int a_ProgressbarID, short a_Value)
 
 
 
-/// One item finished cooking
 void cFurnaceEntity::FinishOne()
 {
 	m_TimeCooked = 0;
@@ -166,8 +168,6 @@ void cFurnaceEntity::FinishOne()
 		m_Contents.ChangeSlotCount(fsOutput, m_CurrentRecipe->Out->m_ItemCount);
 	}
 	m_Contents.ChangeSlotCount(fsInput, -m_CurrentRecipe->In->m_ItemCount);
-	
-	UpdateIsCooking();
 }
 
 
@@ -181,8 +181,7 @@ void cFurnaceEntity::BurnNewFuel(void)
 	if (NewTime == 0)
 	{
 		// The item in the fuel slot is not suitable
-		m_FuelBurnTime = 0;
-		m_TimeBurned = 0;
+		SetBurnTimes(0, 0);
 		SetIsCooking(false);
 		return;
 	}
@@ -194,8 +193,7 @@ void cFurnaceEntity::BurnNewFuel(void)
 	}
 
 	// Burn one new fuel:
-	m_FuelBurnTime = NewTime;
-	m_TimeBurned = 0;
+	SetBurnTimes(NewTime, 0);
 	SetIsCooking(true);
 	if (m_Contents.GetSlot(fsFuel).m_ItemType == E_ITEM_LAVA_BUCKET)
 	{
@@ -214,33 +212,19 @@ void cFurnaceEntity::BurnNewFuel(void)
 void cFurnaceEntity::OnSlotChanged(cItemGrid * a_ItemGrid, int a_SlotNum)
 {
 	super::OnSlotChanged(a_ItemGrid, a_SlotNum);
-	
-	if (m_World == NULL)
+
+	if (m_IsDestroyed)
 	{
-		// The furnace isn't initialized yet, do no processing
 		return;
 	}
 	
 	ASSERT(a_ItemGrid == &m_Contents);
 	switch (a_SlotNum)
 	{
-		case fsInput:
-		{
-			UpdateInput();
-			break;
-		}
-		
-		case fsFuel:
-		{
-			UpdateFuel();
-			break;
-		}
-		
-		case fsOutput:
-		{
-			UpdateOutput();
-			break;
-		}
+		case fsInput:  UpdateInput();  break;		
+		case fsFuel:   UpdateFuel();   break;		
+		case fsOutput: UpdateOutput(); break;
+		default: ASSERT(!"Invalid furnace slot update!"); break;
 	}
 }
 
@@ -249,7 +233,6 @@ void cFurnaceEntity::OnSlotChanged(cItemGrid * a_ItemGrid, int a_SlotNum)
 
 
 
-/// Updates the current recipe, based on the current input
 void cFurnaceEntity::UpdateInput(void)
 {
 	if (!m_Contents.GetSlot(fsInput).IsEqual(m_LastInput))
@@ -263,8 +246,8 @@ void cFurnaceEntity::UpdateInput(void)
 	m_CurrentRecipe = FR->GetRecipeFrom(m_Contents.GetSlot(fsInput));
 	if (!CanCookInputToOutput())
 	{
-		// This input cannot be cooked
-		m_NeedCookTime = 0;
+		// This input cannot be cooked, reset cook counter immediately
+		SetCookTimes(0, 0);
 		SetIsCooking(false);
 	}
 	else
@@ -284,7 +267,6 @@ void cFurnaceEntity::UpdateInput(void)
 
 
 
-/// Called when the fuel slot changes or when the fuel is spent, burns another piece of fuel if appropriate
 void cFurnaceEntity::UpdateFuel(void)
 {
 	if (m_FuelBurnTime > m_TimeBurned)
@@ -301,14 +283,12 @@ void cFurnaceEntity::UpdateFuel(void)
 
 
 
-/// Called when the output slot changes; starts burning if space became available
 void cFurnaceEntity::UpdateOutput(void)
 {
 	if (!CanCookInputToOutput())
 	{
 		// Cannot cook anymore:
-		m_TimeCooked = 0;
-		m_NeedCookTime = 0;
+		SetCookTimes(0, 0);
 		SetIsCooking(false);
 		return;
 	}
@@ -324,30 +304,6 @@ void cFurnaceEntity::UpdateOutput(void)
 
 
 
-/// Updates the m_IsCooking, based on the input slot, output slot and m_FuelBurnTime / m_TimeBurned
-void cFurnaceEntity::UpdateIsCooking(void)
-{
-	if (
-		!CanCookInputToOutput() ||        // Cannot cook this
-		(m_FuelBurnTime <= 0) ||          // No fuel
-		(m_TimeBurned >= m_FuelBurnTime)  // Fuel burnt out
-	)
-	{
-		// Reset everything
-		SetIsCooking(false);
-		m_TimeCooked = 0;
-		m_NeedCookTime = 0;
-		return;
-	}
-	
-	SetIsCooking(true);
-}
-
-
-
-
-
-/// Returns true if the input can be cooked into output and the item counts allow for another cooking operation
 bool cFurnaceEntity::CanCookInputToOutput(void) const
 {
 	if (m_CurrentRecipe == NULL)
@@ -382,25 +338,20 @@ bool cFurnaceEntity::CanCookInputToOutput(void) const
 
 
 
-/// Broadcasts progressbar updates, if needed
-void cFurnaceEntity::UpdateProgressBars(void)
+void cFurnaceEntity::UpdateProgressBars(bool a_ForceUpdate)
 {
 	// In order to preserve bandwidth, an update is sent only every 10th tick
-	// That's why the comparisons use the division by eight
-	
-	int CurFuel = (m_FuelBurnTime > 0) ? (200 - 200 * m_TimeBurned / m_FuelBurnTime) : 0;
-	if ((CurFuel / 8) != (m_LastProgressFuel / 8))
+	if (!a_ForceUpdate && (m_World->GetWorldAge() % 10 != 0))
 	{
-		BroadcastProgress(PROGRESSBAR_FUEL, (short)CurFuel);
-		m_LastProgressFuel = CurFuel;
+		return;
 	}
 	
-	int CurCook = (m_NeedCookTime > 0) ? (200 * m_TimeCooked / m_NeedCookTime) : 0;
-	if ((CurCook / 8) != (m_LastProgressCook / 8))
-	{
-		BroadcastProgress(PROGRESSBAR_SMELTING, (short)CurCook);
-		m_LastProgressCook = CurCook;
-	}
+	int CurFuel = (m_FuelBurnTime > 0) ? 200 - (200 * m_TimeBurned / m_FuelBurnTime) : 0;
+	BroadcastProgress(PROGRESSBAR_FUEL, static_cast<short>(CurFuel));
+	
+	int CurCook = (m_NeedCookTime > 0) ? (200 * m_TimeCooked / m_NeedCookTime) : 0;	
+	BroadcastProgress(PROGRESSBAR_SMELTING_CONFIRM, 200);  // Post 1.8, Mojang requires a random packet with an ID of three and value of 200. Wat. Wat. Wat.
+	BroadcastProgress(PROGRESSBAR_SMELTING, static_cast<short>(CurCook));
 }
 
 
@@ -413,11 +364,14 @@ void cFurnaceEntity::SetIsCooking(bool a_IsCooking)
 	{
 		return;
 	}
-
 	m_IsCooking = a_IsCooking;
-		
-	// Light or extinguish the furnace:
-	m_World->FastSetBlock(m_PosX, m_PosY, m_PosZ, m_IsCooking ? E_BLOCK_LIT_FURNACE : E_BLOCK_FURNACE, m_BlockMeta);
+
+	// Only light the furnace as it is extinguished only when the fuel runs out, not when cooking stops - handled in this::Tick()
+	if (m_IsCooking)
+	{
+		m_BlockType = E_BLOCK_LIT_FURNACE;
+		m_World->FastSetBlock(m_PosX, m_PosY, m_PosZ, E_BLOCK_LIT_FURNACE, m_BlockMeta);
+	}
 }
 
 
diff --git a/src/BlockEntities/FurnaceEntity.h b/src/BlockEntities/FurnaceEntity.h
index ed3317af6..8e48810ba 100644
--- a/src/BlockEntities/FurnaceEntity.h
+++ b/src/BlockEntities/FurnaceEntity.h
@@ -38,114 +38,128 @@ public:
 	
 	// tolua_end
 	
-	/// Constructor used for normal operation
+	BLOCKENTITY_PROTODEF(cFurnaceEntity);
+	
+	/** Constructor used for normal operation */
 	cFurnaceEntity(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, cWorld * a_World);
 	
 	virtual ~cFurnaceEntity();
 
-	static const char * GetClassStatic() { return "cFurnaceEntity"; }
-	
 	// cBlockEntity overrides:
 	virtual void SendTo(cClientHandle & a_Client) override;
 	virtual bool Tick(float a_Dt, cChunk & a_Chunk) override;
 	virtual void UsedBy(cPlayer * a_Player) override;
+	virtual void Destroy() override
+	{
+		m_IsDestroyed = true;
+		super::Destroy();
+	}
 
-	/// Restarts cooking. Used after the furnace is loaded from storage to set up the internal variables so that cooking continues, if it was active. Returns true if cooking.
+	/** Restarts cooking
+	Used after the furnace is loaded from storage to set up the internal variables so that cooking continues, if it was active
+	Returns true if cooking */
 	bool ContinueCooking(void);
-
-	void ResetCookTimer();
 	
 	// tolua_begin
 	
-	/// Returns the item in the input slot
+	/** Returns the item in the input slot */
 	const cItem & GetInputSlot(void) const { return GetSlot(fsInput); }
 	
-	/// Returns the item in the fuel slot
+	/** Returns the item in the fuel slot */
 	const cItem & GetFuelSlot(void) const { return GetSlot(fsFuel); }
 	
-	/// Returns the item in the output slot
+	/** Returns the item in the output slot */
 	const cItem & GetOutputSlot(void) const { return GetSlot(fsOutput); }
 	
-	/// Sets the item in the input slot
+	/** Sets the item in the input slot */
 	void SetInputSlot(const cItem & a_Item) { SetSlot(fsInput, a_Item); }
 	
-	/// Sets the item in the fuel slot
+	/** Sets the item in the fuel slot */
 	void SetFuelSlot(const cItem & a_Item) { SetSlot(fsFuel, a_Item); }
 	
-	/// Sets the item in the output slot
+	/** Sets the item in the output slot */
 	void SetOutputSlot(const cItem & a_Item) { SetSlot(fsOutput, a_Item); }
 	
-	/// Returns the time that the current item has been cooking, in ticks
-	int GetTimeCooked(void) const {return m_TimeCooked; }
+	/** Returns the time that the current item has been cooking, in ticks */
+	int GetTimeCooked(void) const { return m_TimeCooked; }
 	
-	/// Returns the time until the current item finishes cooking, in ticks
+	/** Returns the time until the current item finishes cooking, in ticks */
 	int GetCookTimeLeft(void) const { return m_NeedCookTime - m_TimeCooked; }
 	
-	/// Returns the time until the current fuel is depleted, in ticks
-	int GetFuelBurnTimeLeft(void) const {return m_FuelBurnTime - m_TimeBurned; }
+	/** Returns the time until the current fuel is depleted, in ticks */
+	int GetFuelBurnTimeLeft(void) const { return m_FuelBurnTime - m_TimeBurned; }
 	
-	/// Returns true if there's time left before the current fuel is depleted
+	/** Returns true if there's time left before the current fuel is depleted */
 	bool HasFuelTimeLeft(void) const { return (GetFuelBurnTimeLeft() > 0); }
 	
 	// tolua_end
 	
-	void SetBurnTimes(int a_FuelBurnTime, int a_TimeBurned) {m_FuelBurnTime = a_FuelBurnTime; m_TimeBurned = a_TimeBurned; }
-	void SetCookTimes(int a_NeedCookTime, int a_TimeCooked) {m_NeedCookTime = a_NeedCookTime; m_TimeCooked = a_TimeCooked; }
+	void SetBurnTimes(int a_FuelBurnTime, int a_TimeBurned)
+	{
+		m_FuelBurnTime = a_FuelBurnTime;
+		m_TimeBurned = a_TimeBurned;
+	}
+
+	void SetCookTimes(int a_NeedCookTime, int a_TimeCooked)
+	{
+		m_NeedCookTime = a_NeedCookTime;
+		m_TimeCooked = a_TimeCooked;
+	}
 	
 protected:
-
-	/// Block type of the block currently represented by this entity (changes when furnace lights up)
-	BLOCKTYPE m_BlockType;
 	
-	/// Block meta of the block currently represented by this entity
+	/** Block meta of the block currently represented by this entity */
 	NIBBLETYPE m_BlockMeta;
 
-	/// The recipe for the current input slot
+	/** The recipe for the current input slot */
 	const cFurnaceRecipe::cRecipe * m_CurrentRecipe;
 	
-	/// The item that is being smelted
+	/** The item that is being smelted */
 	cItem m_LastInput;
+
+	/** Set to true when the furnace entity has been destroyed to prevent the block being set again */
+	bool m_IsDestroyed;
 	
-	bool m_IsCooking;  ///< Set to true if the furnace is cooking an item
-	
-	// All timers are in ticks
-	int m_NeedCookTime;  ///< Amount of time needed to fully cook current item
-	int m_TimeCooked;    ///< Amount of time that the current item has been cooking
-	int m_FuelBurnTime;  ///< Amount of time that the current fuel can burn (in total); zero if no fuel burning
-	int m_TimeBurned;    ///< Amount of time that the current fuel has been burning
-	
-	int m_LastProgressFuel;  ///< Last value sent as the progress for the fuel
-	int m_LastProgressCook;  ///< Last value sent as the progress for the cooking
+	/** Set to true if the furnace is cooking an item */
+	bool m_IsCooking;
 	
+	/** Amount of ticks needed to fully cook current item */
+	int m_NeedCookTime;
+
+	/** Amount of ticks that the current item has been cooking */
+	int m_TimeCooked;
+
+	/** Amount of ticks that the current fuel can burn (in total); zero if no fuel burning */
+	int m_FuelBurnTime;
+
+	/** Amount of ticks that the current fuel has been burning */
+	int m_TimeBurned;	
 	
-	/// Sends the specified progressbar value to all clients of the window
-	void BroadcastProgress(int a_ProgressbarID, short a_Value);
+	/** Sends the specified progressbar value to all clients of the window */
+	void BroadcastProgress(short a_ProgressbarID, short a_Value);
 	
-	/// One item finished cooking
+	/** One item finished cooking */
 	void FinishOne();
 	
-	/// Starts burning a new fuel, if possible
+	/** Starts burning a new fuel, if possible */
 	void BurnNewFuel(void);
 	
-	/// Updates the recipe, based on the current input
+	/** Updates the recipe, based on the current input */
 	void UpdateInput(void);
 	
-	/// Called when the fuel slot changes or when the fuel is spent, burns another piece of fuel if appropriate
+	/** Called when the fuel slot changes or when the fuel is spent, burns another piece of fuel if appropriate */
 	void UpdateFuel(void);
 	
-	/// Called when the output slot changes
+	/** Called when the output slot changes */
 	void UpdateOutput(void);
 	
-	/// Updates the m_IsCooking, based on the input slot, output slot and m_FuelBurnTime / m_TimeBurned
-	void UpdateIsCooking(void);
-	
-	/// Returns true if the input can be cooked into output and the item counts allow for another cooking operation
+	/** Returns true if the input can be cooked into output and the item counts allow for another cooking operation */
 	bool CanCookInputToOutput(void) const;
 	
-	/// Broadcasts progressbar updates, if needed
-	void UpdateProgressBars(void);
+	/** Broadcasts progressbar updates, if needed */
+	void UpdateProgressBars(bool a_ForceUpdate = false);
 	
-	/// Sets the m_IsCooking variable, updates the furnace block type based on the value
+	/** Sets the m_IsCooking variable, updates the furnace block type based on the value */
 	void SetIsCooking(bool a_IsCooking);
 	
 	// cItemGrid::cListener overrides:
diff --git a/src/BlockEntities/HopperEntity.h b/src/BlockEntities/HopperEntity.h
index 5d06581c2..7070bbad3 100644
--- a/src/BlockEntities/HopperEntity.h
+++ b/src/BlockEntities/HopperEntity.h
@@ -31,6 +31,8 @@ public:
 
 	// tolua_end
 	
+	BLOCKENTITY_PROTODEF(cHopperEntity);
+	
 	/// Constructor used for normal operation
 	cHopperEntity(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World);
 	
@@ -40,8 +42,6 @@ public:
 	*/
 	bool GetOutputBlockPos(NIBBLETYPE a_BlockMeta, int & a_OutputX, int & a_OutputY, int & a_OutputZ);
 	
-	static const char * GetClassStatic(void) { return "cHopperEntity"; }
-	
 protected:
 
 	Int64 m_LastMoveItemsInTick;
diff --git a/src/BlockEntities/JukeboxEntity.h b/src/BlockEntities/JukeboxEntity.h
index 49d2faa89..7a69d6499 100644
--- a/src/BlockEntities/JukeboxEntity.h
+++ b/src/BlockEntities/JukeboxEntity.h
@@ -26,6 +26,8 @@ public:
 
 	// tolua_end
 	
+	BLOCKENTITY_PROTODEF(cJukeboxEntity);
+	
 	cJukeboxEntity(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World);
 	virtual ~cJukeboxEntity();
 
@@ -51,8 +53,6 @@ public:
 	
 	// tolua_end
 
-	static const char * GetClassStatic(void) { return "cJukeboxEntity"; }
-	
 	virtual void UsedBy(cPlayer * a_Player) override;
 	virtual void SendTo(cClientHandle &) override {}
 
diff --git a/src/BlockEntities/MobHeadEntity.h b/src/BlockEntities/MobHeadEntity.h
index fcdeaa8a6..7f69bc5ad 100644
--- a/src/BlockEntities/MobHeadEntity.h
+++ b/src/BlockEntities/MobHeadEntity.h
@@ -34,6 +34,8 @@ public:
 
 	// tolua_end
 	
+	BLOCKENTITY_PROTODEF(cMobHeadEntity);
+	
 	/** Creates a new mob head entity at the specified block coords. a_World may be NULL */
 	cMobHeadEntity(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World);
 
@@ -62,8 +64,6 @@ public:
 	virtual void UsedBy(cPlayer * a_Player) override;
 	virtual void SendTo(cClientHandle & a_Client) override;
 
-	static const char * GetClassStatic(void) { return "cMobHeadEntity"; }
-	
 private:
 
 	eMobHeadType m_Type;
diff --git a/src/BlockEntities/NoteEntity.h b/src/BlockEntities/NoteEntity.h
index d1ffa126a..74dbde046 100644
--- a/src/BlockEntities/NoteEntity.h
+++ b/src/BlockEntities/NoteEntity.h
@@ -40,6 +40,8 @@ public:
 
 	// tolua_end
 
+	BLOCKENTITY_PROTODEF(cNoteEntity);
+	
 	/// Creates a new note entity. a_World may be NULL
 	cNoteEntity(int a_X, int a_Y, int a_Z, cWorld * a_World);
 	virtual ~cNoteEntity() {}
@@ -64,8 +66,6 @@ public:
 		}
 	}
 
-	static const char * GetClassStatic(void) { return "cNoteEntity"; }
-
 private:
 	char m_Pitch;
 } ;  // tolua_export
diff --git a/src/BlockEntities/SignEntity.h b/src/BlockEntities/SignEntity.h
index 53c43b758..be13c7a32 100644
--- a/src/BlockEntities/SignEntity.h
+++ b/src/BlockEntities/SignEntity.h
@@ -34,6 +34,8 @@ public:
 
 	// tolua_end
 	
+	BLOCKENTITY_PROTODEF(cSignEntity);
+	
 	/// Creates a new empty sign entity at the specified block coords and block type (wall or standing). a_World may be NULL
 	cSignEntity(BLOCKTYPE a_BlockType, int a_X, int a_Y, int a_Z, cWorld * a_World);
 
@@ -53,8 +55,6 @@ public:
 	virtual void UsedBy(cPlayer * a_Player) override;
 	virtual void SendTo(cClientHandle & a_Client) override;
 
-	static const char * GetClassStatic(void) { return "cSignEntity"; }
-	
 private:
 
 	AString  m_Line[4];