6 files changed, 83 insertions, 0 deletions

diff --git a/src/Protocol/Protocol.h b/src/Protocol/Protocol.h
index 3293da32c..1bc5d528e 100644
--- a/src/Protocol/Protocol.h
+++ b/src/Protocol/Protocol.h
@@ -103,6 +103,7 @@ public:
 	virtual void SendThunderbolt         (int a_BlockX, int a_BlockY, int a_BlockZ) = 0;
 	virtual void SendTimeUpdate          (Int64 a_WorldAge, Int64 a_TimeOfDay) = 0;
 	virtual void SendUnloadChunk         (int a_ChunkX, int a_ChunkZ) = 0;
+	virtual void SendUpdateBlockEntity   (cBlockEntity & a_BlockEntity) = 0;
 	virtual void SendUpdateSign          (int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4) = 0;
 	virtual void SendUseBed              (const cEntity & a_Entity, int a_BlockX, int a_BlockY, int a_BlockZ ) = 0;
 	virtual void SendWeather             (eWeather a_Weather) = 0;
diff --git a/src/Protocol/Protocol125.h b/src/Protocol/Protocol125.h
index d0e5c9428..310f9dd78 100644
--- a/src/Protocol/Protocol125.h
+++ b/src/Protocol/Protocol125.h
@@ -79,6 +79,7 @@ public:
 	virtual void SendThunderbolt         (int a_BlockX, int a_BlockY, int a_BlockZ) override;
 	virtual void SendTimeUpdate          (Int64 a_WorldAge, Int64 a_TimeOfDay) override;
 	virtual void SendUnloadChunk         (int a_ChunkX, int a_ChunkZ) override;
+	virtual void SendUpdateBlockEntity   (cBlockEntity & a_BlockEntity) override {};
 	virtual void SendUpdateSign          (int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4) override;
 	virtual void SendUseBed              (const cEntity & a_Entity, int a_BlockX, int a_BlockY, int a_BlockZ ) override;
 	virtual void SendWeather             (eWeather a_Weather) override;
diff --git a/src/Protocol/Protocol17x.cpp b/src/Protocol/Protocol17x.cpp
index 5b3a79555..293f96186 100644
--- a/src/Protocol/Protocol17x.cpp
+++ b/src/Protocol/Protocol17x.cpp
@@ -24,6 +24,7 @@ Implements the 1.7.x protocol classes:
 #include "../Entities/Player.h"
 #include "../Mobs/IncludeAllMonsters.h"
 #include "../UI/Window.h"
+#include "../BlockEntities/CommandBlockEntity.h"
 
 
 
@@ -892,6 +893,28 @@ void cProtocol172::SendUnloadChunk(int a_ChunkX, int a_ChunkZ)
 
 
 
+void cProtocol172::SendUpdateBlockEntity(cBlockEntity & a_BlockEntity)
+{
+	cPacketizer Pkt(*this, 0x35);  // Update tile entity packet
+	Pkt.WriteInt(a_BlockEntity.GetPosX());
+	Pkt.WriteShort(a_BlockEntity.GetPosY());
+	Pkt.WriteInt(a_BlockEntity.GetPosZ());
+
+	Byte Action = 0;
+	switch (a_BlockEntity.GetBlockType())
+	{
+		case E_BLOCK_MOB_SPAWNER:   Action = 1; break; // Update mob spawner spinny mob thing
+		case E_BLOCK_COMMAND_BLOCK: Action = 2; break; // Update command block text
+		default: ASSERT(!"Unhandled or unimplemented BlockEntity update request!"); break;
+	}
+	Pkt.WriteByte(Action);
+
+	Pkt.WriteBlockEntity(a_BlockEntity);
+}
+
+
+
+
 
 void cProtocol172::SendUpdateSign(int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4)
 {
@@ -1819,6 +1842,51 @@ void cProtocol172::cPacketizer::WriteItem(const cItem & a_Item)
 
 
 
+void cProtocol172::cPacketizer::WriteBlockEntity(const cBlockEntity & a_BlockEntity)
+{
+	cFastNBTWriter Writer;
+
+	switch (a_BlockEntity.GetBlockType())
+	{
+		case E_BLOCK_COMMAND_BLOCK:
+		{
+			cCommandBlockEntity & CommandBlockEntity = (cCommandBlockEntity &)a_BlockEntity;
+
+			Writer.AddByte("TrackOutput", 1); // Neither I nor the MC wiki has any idea about this
+			Writer.AddInt("SuccessCount", CommandBlockEntity.GetResult());
+			Writer.AddInt("x", CommandBlockEntity.GetPosX());
+			Writer.AddInt("y", CommandBlockEntity.GetPosY());
+			Writer.AddInt("z", CommandBlockEntity.GetPosZ());
+			Writer.AddString("Command", CommandBlockEntity.GetCommand().c_str());
+			// You can set custom names for windows in Vanilla
+			// For a command block, this would be the 'name' prepended to anything it outputs into global chat
+			// MCS doesn't have this, so just leave it @ '@'. (geddit?)
+			Writer.AddString("CustomName", "@");
+			Writer.AddString("id", "Control"); // "Tile Entity ID" - MC wiki; vanilla server always seems to send this though
+
+			if (!CommandBlockEntity.GetLastOutput().empty())
+			{
+				AString Output;
+				Printf(Output, "{\"text\":\"%s\"}", CommandBlockEntity.GetLastOutput().c_str());
+
+				Writer.AddString("LastOutput", Output.c_str());
+			}
+			break;
+		}
+		default: break;
+	}
+
+	Writer.Finish();
+
+	AString Compressed;
+	CompressStringGZIP(Writer.GetResult().data(), Writer.GetResult().size(), Compressed);
+	WriteShort(Compressed.size());
+	WriteBuf(Compressed.data(), Compressed.size());
+}
+
+
+
+
 
 void cProtocol172::cPacketizer::WriteByteAngle(double a_Angle)
 {
diff --git a/src/Protocol/Protocol17x.h b/src/Protocol/Protocol17x.h
index 07dba834b..3ae774c18 100644
--- a/src/Protocol/Protocol17x.h
+++ b/src/Protocol/Protocol17x.h
@@ -102,6 +102,7 @@ public:
 	virtual void SendThunderbolt         (int a_BlockX, int a_BlockY, int a_BlockZ) override;
 	virtual void SendTimeUpdate          (Int64 a_WorldAge, Int64 a_TimeOfDay) override;
 	virtual void SendUnloadChunk         (int a_ChunkX, int a_ChunkZ) override;
+	virtual void SendUpdateBlockEntity   (cBlockEntity & a_BlockEntity) override;
 	virtual void SendUpdateSign          (int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4) override;
 	virtual void SendUseBed              (const cEntity & a_Entity, int a_BlockX, int a_BlockY, int a_BlockZ ) override;
 	virtual void SendWeather             (eWeather a_Weather) override;
@@ -189,6 +190,7 @@ protected:
 		void WriteEntityMetadata(const cEntity & a_Entity);  // Writes the metadata for the specified entity, not including the terminating 0x7f
 		void WriteMobMetadata(const cMonster & a_Mob);  // Writes the mob-specific metadata for the specified mob
 		void WriteEntityProperties(const cEntity & a_Entity);  // Writes the entity properties for the specified entity, including the Count field
+		void WriteBlockEntity(const cBlockEntity & a_BlockEntity);
 		
 	protected:
 		cProtocol172 & m_Protocol;
diff --git a/src/Protocol/ProtocolRecognizer.cpp b/src/Protocol/ProtocolRecognizer.cpp
index a21f4f042..5524af136 100644
--- a/src/Protocol/ProtocolRecognizer.cpp
+++ b/src/Protocol/ProtocolRecognizer.cpp
@@ -636,6 +636,16 @@ void cProtocolRecognizer::SendUnloadChunk(int a_ChunkX, int a_ChunkZ)
 
 
 
+void cProtocolRecognizer::SendUpdateBlockEntity(cBlockEntity & a_BlockEntity)
+{
+	ASSERT(m_Protocol != NULL);
+	m_Protocol->SendUpdateBlockEntity(a_BlockEntity);
+}
+
+
+
+
+
 void cProtocolRecognizer::SendUpdateSign(int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4)
 {
 	ASSERT(m_Protocol != NULL);
diff --git a/src/Protocol/ProtocolRecognizer.h b/src/Protocol/ProtocolRecognizer.h
index e94f4cde8..2dccace6e 100644
--- a/src/Protocol/ProtocolRecognizer.h
+++ b/src/Protocol/ProtocolRecognizer.h
@@ -114,6 +114,7 @@ public:
 	virtual void SendThunderbolt         (int a_BlockX, int a_BlockY, int a_BlockZ) override;
 	virtual void SendTimeUpdate          (Int64 a_WorldAge, Int64 a_TimeOfDay) override;
 	virtual void SendUnloadChunk         (int a_ChunkX, int a_ChunkZ) override;
+	virtual void SendUpdateBlockEntity   (cBlockEntity & a_BlockEntity) override;
 	virtual void SendUpdateSign          (int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4) override;
 	virtual void SendUseBed              (const cEntity & a_Entity, int a_BlockX, int a_BlockY, int a_BlockZ ) override;
 	virtual void SendWeather             (eWeather a_Weather) override;