// Protocol_1_9.cpp /* Implements the 1.9 protocol classes: - cProtocol_1_9_0 - release 1.9 protocol (#107) - cProtocol_1_9_1 - release 1.9.1 protocol (#108) - cProtocol_1_9_2 - release 1.9.2 protocol (#109) - cProtocol_1_9_4 - release 1.9.4 protocol (#110) */ #include "Globals.h" #include "json/json.h" #include "Protocol_1_9.h" #include "ChunkDataSerializer.h" #include "PolarSSL++/Sha1Checksum.h" #include "Packetizer.h" #include "../ClientHandle.h" #include "../Root.h" #include "../Server.h" #include "../World.h" #include "../EffectID.h" #include "../StringCompression.h" #include "../CompositeChat.h" #include "../Statistics.h" #include "../WorldStorage/FastNBT.h" #include "../WorldStorage/EnchantmentSerializer.h" #include "../Entities/Boat.h" #include "../Entities/ExpOrb.h" #include "../Entities/Minecart.h" #include "../Entities/FallingBlock.h" #include "../Entities/Painting.h" #include "../Entities/Pickup.h" #include "../Entities/Player.h" #include "../Entities/ItemFrame.h" #include "../Entities/ArrowEntity.h" #include "../Entities/FireworkEntity.h" #include "../Entities/SplashPotionEntity.h" #include "../Items/ItemSpawnEgg.h" #include "../Mobs/IncludeAllMonsters.h" #include "../UI/Window.h" #include "../BlockEntities/BeaconEntity.h" #include "../BlockEntities/CommandBlockEntity.h" #include "../BlockEntities/MobHeadEntity.h" #include "../BlockEntities/MobSpawnerEntity.h" #include "../BlockEntities/FlowerPotEntity.h" #include "Bindings/PluginManager.h" /** The slot number that the client uses to indicate "outside the window". */ static const Int16 SLOT_NUM_OUTSIDE = -999; /** Value for main hand in Hand parameter for Protocol 1.9. */ static const UInt32 MAIN_HAND = 0; #define HANDLE_READ(ByteBuf, Proc, Type, Var) \ Type Var; \ if (!ByteBuf.Proc(Var))\ {\ return;\ } #define HANDLE_PACKET_READ(ByteBuf, Proc, Type, Var) \ Type Var; \ { \ if (!ByteBuf.Proc(Var)) \ { \ ByteBuf.CheckValid(); \ return false; \ } \ ByteBuf.CheckValid(); \ } const int MAX_ENC_LEN = 512; // Maximum size of the encrypted message; should be 128, but who knows... const uLongf MAX_COMPRESSED_PACKET_LEN = 200 KiB; // Maximum size of compressed packets. // fwd: main.cpp: extern bool g_ShouldLogCommIn, g_ShouldLogCommOut; //////////////////////////////////////////////////////////////////////////////// // cProtocol_1_9_0: cProtocol_1_9_0::cProtocol_1_9_0(cClientHandle * a_Client, const AString & a_ServerAddress, UInt16 a_ServerPort, UInt32 a_State) : super(a_Client), m_ServerAddress(a_ServerAddress), m_ServerPort(a_ServerPort), m_State(a_State), m_IsTeleportIdConfirmed(true), m_OutstandingTeleportId(0), m_ReceivedData(32 KiB), m_IsEncrypted(false) { // BungeeCord handling: // If BC is setup with ip_forward == true, it sends additional data in the login packet's ServerAddress field: // hostname\00ip-address\00uuid\00profile-properties-as-json AStringVector Params; if (cRoot::Get()->GetServer()->ShouldAllowBungeeCord() && SplitZeroTerminatedStrings(a_ServerAddress, Params) && (Params.size() == 4)) { LOGD("Player at %s connected via BungeeCord", Params[1].c_str()); m_ServerAddress = Params[0]; m_Client->SetIPString(Params[1]); cUUID UUID; UUID.FromString(Params[2]); m_Client->SetUUID(UUID); m_Client->SetProperties(Params[3]); } // Create the comm log file, if so requested: if (g_ShouldLogCommIn || g_ShouldLogCommOut) { static int sCounter = 0; cFile::CreateFolder("CommLogs"); AString IP(a_Client->GetIPString()); ReplaceString(IP, ":", "_"); AString FileName = Printf("CommLogs/%x_%d__%s.log", static_cast(time(nullptr)), sCounter++, IP.c_str() ); if (!m_CommLogFile.Open(FileName, cFile::fmWrite)) { LOG("Cannot log communication to file, the log file \"%s\" cannot be opened for writing.", FileName.c_str()); } } } void cProtocol_1_9_0::DataReceived(const char * a_Data, size_t a_Size) { if (m_IsEncrypted) { Byte Decrypted[512]; while (a_Size > 0) { size_t NumBytes = (a_Size > sizeof(Decrypted)) ? sizeof(Decrypted) : a_Size; m_Decryptor.ProcessData(Decrypted, reinterpret_cast(a_Data), NumBytes); AddReceivedData(reinterpret_cast(Decrypted), NumBytes); a_Size -= NumBytes; a_Data += NumBytes; } } else { AddReceivedData(a_Data, a_Size); } } void cProtocol_1_9_0::SendAttachEntity(const cEntity & a_Entity, const cEntity & a_Vehicle) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x40); // Set passangers packet Pkt.WriteVarInt32(a_Vehicle.GetUniqueID()); Pkt.WriteVarInt32(1); // 1 passenger Pkt.WriteVarInt32(a_Entity.GetUniqueID()); } void cProtocol_1_9_0::SendBlockAction(int a_BlockX, int a_BlockY, int a_BlockZ, char a_Byte1, char a_Byte2, BLOCKTYPE a_BlockType) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x0a); // Block Action packet Pkt.WritePosition64(a_BlockX, a_BlockY, a_BlockZ); Pkt.WriteBEInt8(a_Byte1); Pkt.WriteBEInt8(a_Byte2); Pkt.WriteVarInt32(a_BlockType); } void cProtocol_1_9_0::SendBlockBreakAnim(UInt32 a_EntityID, int a_BlockX, int a_BlockY, int a_BlockZ, char a_Stage) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x08); // Block Break Animation packet Pkt.WriteVarInt32(a_EntityID); Pkt.WritePosition64(a_BlockX, a_BlockY, a_BlockZ); Pkt.WriteBEInt8(a_Stage); } void cProtocol_1_9_0::SendBlockChange(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x0b); // Block Change packet Pkt.WritePosition64(a_BlockX, a_BlockY, a_BlockZ); Pkt.WriteVarInt32((static_cast(a_BlockType) << 4) | (static_cast(a_BlockMeta) & 15)); } void cProtocol_1_9_0::SendBlockChanges(int a_ChunkX, int a_ChunkZ, const sSetBlockVector & a_Changes) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x10); // Multi Block Change packet Pkt.WriteBEInt32(a_ChunkX); Pkt.WriteBEInt32(a_ChunkZ); Pkt.WriteVarInt32(static_cast(a_Changes.size())); for (sSetBlockVector::const_iterator itr = a_Changes.begin(), end = a_Changes.end(); itr != end; ++itr) { Int16 Coords = static_cast(itr->m_RelY | (itr->m_RelZ << 8) | (itr->m_RelX << 12)); Pkt.WriteBEInt16(Coords); Pkt.WriteVarInt32(static_cast(itr->m_BlockType & 0xFFF) << 4 | (itr->m_BlockMeta & 0xF)); } // for itr - a_Changes[] } void cProtocol_1_9_0::SendOpenBook(const short a_Hand) { cPacketizer Pkt(*this, 0x18); // Plugin Channel Pkt.WriteString("MC|BOpen"); Pkt.WriteVarInt32(static_cast(a_Hand)); } void cProtocol_1_9_0::SendCameraSetTo(const cEntity & a_Entity) { cPacketizer Pkt(*this, 0x36); // Camera Packet (Attach the camera of a player at another entity in spectator mode) Pkt.WriteVarInt32(a_Entity.GetUniqueID()); } void cProtocol_1_9_0::SendChat(const AString & a_Message, eChatType a_Type) { ASSERT(m_State == 3); // In game mode? SendChatRaw(Printf("{\"text\":\"%s\"}", EscapeString(a_Message).c_str()), a_Type); } void cProtocol_1_9_0::SendChat(const cCompositeChat & a_Message, eChatType a_Type, bool a_ShouldUseChatPrefixes) { ASSERT(m_State == 3); // In game mode? SendChatRaw(a_Message.CreateJsonString(a_ShouldUseChatPrefixes), a_Type); } void cProtocol_1_9_0::SendChatRaw(const AString & a_MessageRaw, eChatType a_Type) { ASSERT(m_State == 3); // In game mode? // Send the json string to the client: cPacketizer Pkt(*this, 0x0f); // Chat Message packet Pkt.WriteString(a_MessageRaw); Pkt.WriteBEInt8(a_Type); } void cProtocol_1_9_0::SendChunkData(int a_ChunkX, int a_ChunkZ, cChunkDataSerializer & a_Serializer) { ASSERT(m_State == 3); // In game mode? // Serialize first, before creating the Packetizer (the packetizer locks a CS) // This contains the flags and bitmasks, too const AString & ChunkData = a_Serializer.Serialize(cChunkDataSerializer::RELEASE_1_9_0, a_ChunkX, a_ChunkZ); cCSLock Lock(m_CSPacket); SendData(ChunkData.data(), ChunkData.size()); } void cProtocol_1_9_0::SendCollectEntity(const cEntity & a_Entity, const cPlayer & a_Player, int a_Count) { UNUSED(a_Count); ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x49); // Collect Item packet Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteVarInt32(a_Player.GetUniqueID()); } void cProtocol_1_9_0::SendDestroyEntity(const cEntity & a_Entity) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x30); // Destroy Entities packet Pkt.WriteVarInt32(1); Pkt.WriteVarInt32(a_Entity.GetUniqueID()); } void cProtocol_1_9_0::SendDetachEntity(const cEntity & a_Entity, const cEntity & a_PreviousVehicle) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x40); // Set passangers packet Pkt.WriteVarInt32(a_PreviousVehicle.GetUniqueID()); Pkt.WriteVarInt32(0); // No passangers } void cProtocol_1_9_0::SendDisconnect(const AString & a_Reason) { switch (m_State) { case 2: { // During login: cPacketizer Pkt(*this, 0); Pkt.WriteString(Printf("{\"text\":\"%s\"}", EscapeString(a_Reason).c_str())); break; } case 3: { // In-game: cPacketizer Pkt(*this, 0x1a); Pkt.WriteString(Printf("{\"text\":\"%s\"}", EscapeString(a_Reason).c_str())); break; } } } void cProtocol_1_9_0::SendEditSign(int a_BlockX, int a_BlockY, int a_BlockZ) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x2a); // Sign Editor Open packet Pkt.WritePosition64(a_BlockX, a_BlockY, a_BlockZ); } void cProtocol_1_9_0::SendEntityEffect(const cEntity & a_Entity, int a_EffectID, int a_Amplifier, short a_Duration) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x4c); // Entity Effect packet Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteBEUInt8(static_cast(a_EffectID)); Pkt.WriteBEUInt8(static_cast(a_Amplifier)); Pkt.WriteVarInt32(static_cast(a_Duration)); Pkt.WriteBool(false); // Hide particles } void cProtocol_1_9_0::SendEntityEquipment(const cEntity & a_Entity, short a_SlotNum, const cItem & a_Item) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x3c); // Entity Equipment packet Pkt.WriteVarInt32(a_Entity.GetUniqueID()); // Needs to be adjusted due to the insertion of offhand at slot 1 if (a_SlotNum > 0) { a_SlotNum++; } Pkt.WriteVarInt32(static_cast(a_SlotNum)); WriteItem(Pkt, a_Item); } void cProtocol_1_9_0::SendEntityHeadLook(const cEntity & a_Entity) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x34); // Entity Head Look packet Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteByteAngle(a_Entity.GetHeadYaw()); } void cProtocol_1_9_0::SendEntityLook(const cEntity & a_Entity) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x27); // Entity Look packet Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteByteAngle(a_Entity.GetYaw()); Pkt.WriteByteAngle(a_Entity.GetPitch()); Pkt.WriteBool(a_Entity.IsOnGround()); } void cProtocol_1_9_0::SendEntityMetadata(const cEntity & a_Entity) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x39); // Entity Metadata packet Pkt.WriteVarInt32(a_Entity.GetUniqueID()); WriteEntityMetadata(Pkt, a_Entity); Pkt.WriteBEUInt8(0xff); // The termination byte } void cProtocol_1_9_0::SendEntityProperties(const cEntity & a_Entity) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x4b); // Entity Properties packet Pkt.WriteVarInt32(a_Entity.GetUniqueID()); WriteEntityProperties(Pkt, a_Entity); } void cProtocol_1_9_0::SendEntityRelMove(const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x25); // Entity Relative Move packet Pkt.WriteVarInt32(a_Entity.GetUniqueID()); // TODO: 1.9 changed these from chars to shorts, meaning that there can be more percision and data. Other code needs to be updated for that. Pkt.WriteBEInt16(a_RelX * 128); Pkt.WriteBEInt16(a_RelY * 128); Pkt.WriteBEInt16(a_RelZ * 128); Pkt.WriteBool(a_Entity.IsOnGround()); } void cProtocol_1_9_0::SendEntityRelMoveLook(const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x26); // Entity Look And Relative Move packet Pkt.WriteVarInt32(a_Entity.GetUniqueID()); // TODO: 1.9 changed these from chars to shorts, meaning that there can be more percision and data. Other code needs to be updated for that. Pkt.WriteBEInt16(a_RelX * 128); Pkt.WriteBEInt16(a_RelY * 128); Pkt.WriteBEInt16(a_RelZ * 128); Pkt.WriteByteAngle(a_Entity.GetYaw()); Pkt.WriteByteAngle(a_Entity.GetPitch()); Pkt.WriteBool(a_Entity.IsOnGround()); } void cProtocol_1_9_0::SendEntityStatus(const cEntity & a_Entity, char a_Status) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x1b); // Entity Status packet Pkt.WriteBEUInt32(a_Entity.GetUniqueID()); Pkt.WriteBEInt8(a_Status); } void cProtocol_1_9_0::SendEntityVelocity(const cEntity & a_Entity) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x3b); // Entity Velocity packet Pkt.WriteVarInt32(a_Entity.GetUniqueID()); // 400 = 8000 / 20 ... Conversion from our speed in m / s to 8000 m / tick Pkt.WriteBEInt16(static_cast(a_Entity.GetSpeedX() * 400)); Pkt.WriteBEInt16(static_cast(a_Entity.GetSpeedY() * 400)); Pkt.WriteBEInt16(static_cast(a_Entity.GetSpeedZ() * 400)); } void cProtocol_1_9_0::SendExplosion(double a_BlockX, double a_BlockY, double a_BlockZ, float a_Radius, const cVector3iArray & a_BlocksAffected, const Vector3d & a_PlayerMotion) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x1c); // Explosion packet Pkt.WriteBEFloat(static_cast(a_BlockX)); Pkt.WriteBEFloat(static_cast(a_BlockY)); Pkt.WriteBEFloat(static_cast(a_BlockZ)); Pkt.WriteBEFloat(static_cast(a_Radius)); Pkt.WriteBEUInt32(static_cast(a_BlocksAffected.size())); for (cVector3iArray::const_iterator itr = a_BlocksAffected.begin(), end = a_BlocksAffected.end(); itr != end; ++itr) { Pkt.WriteBEInt8(static_cast(itr->x)); Pkt.WriteBEInt8(static_cast(itr->y)); Pkt.WriteBEInt8(static_cast(itr->z)); } // for itr - a_BlockAffected[] Pkt.WriteBEFloat(static_cast(a_PlayerMotion.x)); Pkt.WriteBEFloat(static_cast(a_PlayerMotion.y)); Pkt.WriteBEFloat(static_cast(a_PlayerMotion.z)); } void cProtocol_1_9_0::SendGameMode(eGameMode a_GameMode) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x1e); // Change Game State packet Pkt.WriteBEUInt8(3); // Reason: Change game mode Pkt.WriteBEFloat(static_cast(a_GameMode)); // The protocol really represents the value with a float! } void cProtocol_1_9_0::SendHealth(void) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x3e); // Update Health packet cPlayer * Player = m_Client->GetPlayer(); Pkt.WriteBEFloat(static_cast(Player->GetHealth())); Pkt.WriteVarInt32(static_cast(Player->GetFoodLevel())); Pkt.WriteBEFloat(static_cast(Player->GetFoodSaturationLevel())); } void cProtocol_1_9_0::SendHideTitle(void) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x45); // Title packet Pkt.WriteVarInt32(3); // Hide title } void cProtocol_1_9_0::SendInventorySlot(char a_WindowID, short a_SlotNum, const cItem & a_Item) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x16); // Set Slot packet Pkt.WriteBEInt8(a_WindowID); Pkt.WriteBEInt16(a_SlotNum); WriteItem(Pkt, a_Item); } void cProtocol_1_9_0::SendKeepAlive(UInt32 a_PingID) { // Drop the packet if the protocol is not in the Game state yet (caused a client crash): if (m_State != 3) { LOGWARNING("Trying to send a KeepAlive packet to a player who's not yet fully logged in (%d). The protocol class prevented the packet.", m_State); return; } cPacketizer Pkt(*this, 0x1f); // Keep Alive packet Pkt.WriteVarInt32(a_PingID); } void cProtocol_1_9_0::SendLeashEntity(const cEntity & a_Entity, const cEntity & a_EntityLeashedTo) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x3a); // Set Attach Entity packet Pkt.WriteBEUInt32(a_Entity.GetUniqueID()); Pkt.WriteBEUInt32(a_EntityLeashedTo.GetUniqueID()); } void cProtocol_1_9_0::SendUnleashEntity(const cEntity & a_Entity) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x3a); // Set Attach Entity packet Pkt.WriteBEUInt32(a_Entity.GetUniqueID()); Pkt.WriteBEInt32(-1); // Unleash a_Entity } void cProtocol_1_9_0::SendLogin(const cPlayer & a_Player, const cWorld & a_World) { // Send the Join Game packet: { cServer * Server = cRoot::Get()->GetServer(); cPacketizer Pkt(*this, 0x23); // Join Game packet Pkt.WriteBEUInt32(a_Player.GetUniqueID()); Pkt.WriteBEUInt8(static_cast(a_Player.GetEffectiveGameMode()) | (Server->IsHardcore() ? 0x08 : 0)); // Hardcore flag bit 4 Pkt.WriteBEInt8(static_cast(a_World.GetDimension())); Pkt.WriteBEUInt8(2); // TODO: Difficulty (set to Normal) Pkt.WriteBEUInt8(static_cast(Clamp(Server->GetMaxPlayers(), 0, 255))); Pkt.WriteString("default"); // Level type - wtf? Pkt.WriteBool(false); // Reduced Debug Info - wtf? } // Send the spawn position: { cPacketizer Pkt(*this, 0x43); // Spawn Position packet Pkt.WritePosition64(FloorC(a_World.GetSpawnX()), FloorC(a_World.GetSpawnY()), FloorC(a_World.GetSpawnZ())); } // Send the server difficulty: { cPacketizer Pkt(*this, 0x0d); // Server difficulty packet Pkt.WriteBEInt8(1); } // Send player abilities: SendPlayerAbilities(); } void cProtocol_1_9_0::SendLoginSuccess(void) { ASSERT(m_State == 2); // State: login? // Enable compression: { cPacketizer Pkt(*this, 0x03); // Set compression packet Pkt.WriteVarInt32(256); } m_State = 3; // State = Game { cPacketizer Pkt(*this, 0x02); // Login success packet Pkt.WriteString(m_Client->GetUUID().ToLongString()); Pkt.WriteString(m_Client->GetUsername()); } } void cProtocol_1_9_0::SendPaintingSpawn(const cPainting & a_Painting) { ASSERT(m_State == 3); // In game mode? double PosX = a_Painting.GetPosX(); double PosY = a_Painting.GetPosY(); double PosZ = a_Painting.GetPosZ(); cPacketizer Pkt(*this, 0x04); // Spawn Painting packet Pkt.WriteVarInt32(a_Painting.GetUniqueID()); // TODO: Bad way to write a UUID, and it's not a true UUID, but this is functional for now. Pkt.WriteBEUInt64(0); Pkt.WriteBEUInt64(a_Painting.GetUniqueID()); Pkt.WriteString(a_Painting.GetName().c_str()); Pkt.WritePosition64(static_cast(PosX), static_cast(PosY), static_cast(PosZ)); Pkt.WriteBEInt8(static_cast(a_Painting.GetProtocolFacing())); } void cProtocol_1_9_0::SendMapData(const cMap & a_Map, int a_DataStartX, int a_DataStartY) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x24); // Map packet Pkt.WriteVarInt32(a_Map.GetID()); Pkt.WriteBEUInt8(static_cast(a_Map.GetScale())); Pkt.WriteBool(true); Pkt.WriteVarInt32(static_cast(a_Map.GetDecorators().size())); for (const auto & Decorator : a_Map.GetDecorators()) { Pkt.WriteBEUInt8(static_cast((static_cast(Decorator.GetType()) << 4) | (Decorator.GetRot() & 0xF))); Pkt.WriteBEUInt8(static_cast(Decorator.GetPixelX())); Pkt.WriteBEUInt8(static_cast(Decorator.GetPixelZ())); } Pkt.WriteBEUInt8(128); Pkt.WriteBEUInt8(128); Pkt.WriteBEUInt8(static_cast(a_DataStartX)); Pkt.WriteBEUInt8(static_cast(a_DataStartY)); Pkt.WriteVarInt32(static_cast(a_Map.GetData().size())); for (auto itr = a_Map.GetData().cbegin(); itr != a_Map.GetData().cend(); ++itr) { Pkt.WriteBEUInt8(*itr); } } void cProtocol_1_9_0::SendPickupSpawn(const cPickup & a_Pickup) { ASSERT(m_State == 3); // In game mode? { // TODO Use SendSpawnObject cPacketizer Pkt(*this, 0x00); // Spawn Object packet Pkt.WriteVarInt32(a_Pickup.GetUniqueID()); // TODO: Bad way to write a UUID, and it's not a true UUID, but this is functional for now. Pkt.WriteBEUInt64(0); Pkt.WriteBEUInt64(a_Pickup.GetUniqueID()); Pkt.WriteBEUInt8(2); // Type = Pickup Pkt.WriteBEDouble(a_Pickup.GetPosX()); Pkt.WriteBEDouble(a_Pickup.GetPosY()); Pkt.WriteBEDouble(a_Pickup.GetPosZ()); Pkt.WriteByteAngle(a_Pickup.GetYaw()); Pkt.WriteByteAngle(a_Pickup.GetPitch()); Pkt.WriteBEInt32(0); // No object data Pkt.WriteBEInt16(0); // No velocity Pkt.WriteBEInt16(0); Pkt.WriteBEInt16(0); } SendEntityMetadata(a_Pickup); } void cProtocol_1_9_0::SendPlayerAbilities(void) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x2b); // Player Abilities packet Byte Flags = 0; cPlayer * Player = m_Client->GetPlayer(); if (Player->IsGameModeCreative()) { Flags |= 0x01; Flags |= 0x08; // Godmode, used for creative } if (Player->IsFlying()) { Flags |= 0x02; } if (Player->CanFly()) { Flags |= 0x04; } Pkt.WriteBEUInt8(Flags); Pkt.WriteBEFloat(static_cast(0.05 * Player->GetFlyingMaxSpeed())); Pkt.WriteBEFloat(static_cast(0.1 * Player->GetNormalMaxSpeed())); } void cProtocol_1_9_0::SendEntityAnimation(const cEntity & a_Entity, char a_Animation) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x06); // Animation packet Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteBEInt8(a_Animation); } void cProtocol_1_9_0::SendParticleEffect(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_ParticleAmount) { ASSERT(m_State == 3); // In game mode? int ParticleID = GetParticleID(a_ParticleName); cPacketizer Pkt(*this, 0x22); // Particle effect packet Pkt.WriteBEInt32(ParticleID); Pkt.WriteBool(false); Pkt.WriteBEFloat(a_SrcX); Pkt.WriteBEFloat(a_SrcY); Pkt.WriteBEFloat(a_SrcZ); Pkt.WriteBEFloat(a_OffsetX); Pkt.WriteBEFloat(a_OffsetY); Pkt.WriteBEFloat(a_OffsetZ); Pkt.WriteBEFloat(a_ParticleData); Pkt.WriteBEInt32(a_ParticleAmount); } void cProtocol_1_9_0::SendParticleEffect(const AString & a_ParticleName, Vector3f a_Src, Vector3f a_Offset, float a_ParticleData, int a_ParticleAmount, std::array a_Data) { ASSERT(m_State == 3); // In game mode? int ParticleID = GetParticleID(a_ParticleName); cPacketizer Pkt(*this, 0x22); // Particle effect packet Pkt.WriteBEInt32(ParticleID); Pkt.WriteBool(false); Pkt.WriteBEFloat(a_Src.x); Pkt.WriteBEFloat(a_Src.y); Pkt.WriteBEFloat(a_Src.z); Pkt.WriteBEFloat(a_Offset.x); Pkt.WriteBEFloat(a_Offset.y); Pkt.WriteBEFloat(a_Offset.z); Pkt.WriteBEFloat(a_ParticleData); Pkt.WriteBEInt32(a_ParticleAmount); switch (ParticleID) { // iconcrack case 36: { Pkt.WriteVarInt32(static_cast(a_Data[0])); Pkt.WriteVarInt32(static_cast(a_Data[1])); break; } // blockcrack // blockdust case 37: case 38: { Pkt.WriteVarInt32(static_cast(a_Data[0])); break; } default: { break; } } } void cProtocol_1_9_0::SendPlayerListAddPlayer(const cPlayer & a_Player) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x2d); // Playerlist Item packet Pkt.WriteVarInt32(0); Pkt.WriteVarInt32(1); Pkt.WriteUUID(a_Player.GetUUID()); Pkt.WriteString(a_Player.GetPlayerListName()); const Json::Value & Properties = a_Player.GetClientHandle()->GetProperties(); Pkt.WriteVarInt32(Properties.size()); for (auto & Node : Properties) { Pkt.WriteString(Node.get("name", "").asString()); Pkt.WriteString(Node.get("value", "").asString()); AString Signature = Node.get("signature", "").asString(); if (Signature.empty()) { Pkt.WriteBool(false); } else { Pkt.WriteBool(true); Pkt.WriteString(Signature); } } Pkt.WriteVarInt32(static_cast(a_Player.GetGameMode())); Pkt.WriteVarInt32(static_cast(a_Player.GetClientHandle()->GetPing())); Pkt.WriteBool(false); } void cProtocol_1_9_0::SendPlayerListRemovePlayer(const cPlayer & a_Player) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x2d); // Playerlist Item packet Pkt.WriteVarInt32(4); Pkt.WriteVarInt32(1); Pkt.WriteUUID(a_Player.GetUUID()); } void cProtocol_1_9_0::SendPlayerListUpdateGameMode(const cPlayer & a_Player) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x2d); // Playerlist Item packet Pkt.WriteVarInt32(1); Pkt.WriteVarInt32(1); Pkt.WriteUUID(a_Player.GetUUID()); Pkt.WriteVarInt32(static_cast(a_Player.GetGameMode())); } void cProtocol_1_9_0::SendPlayerListUpdatePing(const cPlayer & a_Player) { ASSERT(m_State == 3); // In game mode? auto ClientHandle = a_Player.GetClientHandlePtr(); if (ClientHandle != nullptr) { cPacketizer Pkt(*this, 0x2d); // Playerlist Item packet Pkt.WriteVarInt32(2); Pkt.WriteVarInt32(1); Pkt.WriteUUID(a_Player.GetUUID()); Pkt.WriteVarInt32(static_cast(ClientHandle->GetPing())); } } void cProtocol_1_9_0::SendPlayerListUpdateDisplayName(const cPlayer & a_Player, const AString & a_CustomName) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x2d); // Playerlist Item packet Pkt.WriteVarInt32(3); Pkt.WriteVarInt32(1); Pkt.WriteUUID(a_Player.GetUUID()); if (a_CustomName.empty()) { Pkt.WriteBool(false); } else { Pkt.WriteBool(true); Pkt.WriteString(Printf("{\"text\":\"%s\"}", a_CustomName.c_str())); } } void cProtocol_1_9_0::SendPlayerMaxSpeed(void) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x4b); // Entity Properties cPlayer * Player = m_Client->GetPlayer(); Pkt.WriteVarInt32(Player->GetUniqueID()); Pkt.WriteBEInt32(1); // Count Pkt.WriteString("generic.movementSpeed"); // The default game speed is 0.1, multiply that value by the relative speed: Pkt.WriteBEDouble(0.1 * Player->GetNormalMaxSpeed()); if (Player->IsSprinting()) { Pkt.WriteVarInt32(1); // Modifier count Pkt.WriteBEUInt64(0x662a6b8dda3e4c1c); Pkt.WriteBEUInt64(0x881396ea6097278d); // UUID of the modifier Pkt.WriteBEDouble(Player->GetSprintingMaxSpeed() - Player->GetNormalMaxSpeed()); Pkt.WriteBEUInt8(2); } else { Pkt.WriteVarInt32(0); // Modifier count } } void cProtocol_1_9_0::SendPlayerMoveLook(void) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x2e); // Player Position And Look packet cPlayer * Player = m_Client->GetPlayer(); Pkt.WriteBEDouble(Player->GetPosX()); Pkt.WriteBEDouble(Player->GetPosY()); Pkt.WriteBEDouble(Player->GetPosZ()); Pkt.WriteBEFloat(static_cast(Player->GetYaw())); Pkt.WriteBEFloat(static_cast(Player->GetPitch())); Pkt.WriteBEUInt8(0); Pkt.WriteVarInt32(++m_OutstandingTeleportId); // This teleport ID hasn't been confirmed yet m_IsTeleportIdConfirmed = false; } void cProtocol_1_9_0::SendPlayerPosition(void) { // There is no dedicated packet for this, send the whole thing: SendPlayerMoveLook(); } void cProtocol_1_9_0::SendPlayerSpawn(const cPlayer & a_Player) { // Called to spawn another player for the client cPacketizer Pkt(*this, 0x05); // Spawn Player packet Pkt.WriteVarInt32(a_Player.GetUniqueID()); Pkt.WriteUUID(a_Player.GetUUID()); Pkt.WriteBEDouble(a_Player.GetPosX()); Pkt.WriteBEDouble(a_Player.GetPosY() + 0.001); // The "+ 0.001" is there because otherwise the player falls through the block they were standing on. Pkt.WriteBEDouble(a_Player.GetPosZ()); Pkt.WriteByteAngle(a_Player.GetYaw()); Pkt.WriteByteAngle(a_Player.GetPitch()); WriteEntityMetadata(Pkt, a_Player); Pkt.WriteBEUInt8(0xff); // Metadata: end } void cProtocol_1_9_0::SendPluginMessage(const AString & a_Channel, const AString & a_Message) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x18); // Plugin message packet Pkt.WriteString(a_Channel); Pkt.WriteBuf(a_Message.data(), a_Message.size()); } void cProtocol_1_9_0::SendRemoveEntityEffect(const cEntity & a_Entity, int a_EffectID) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x31); // Remove entity effect packet Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteBEUInt8(static_cast(a_EffectID)); } void cProtocol_1_9_0::SendResetTitle(void) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x45); // Title packet Pkt.WriteVarInt32(4); // Reset title } void cProtocol_1_9_0::SendRespawn(eDimension a_Dimension) { cPacketizer Pkt(*this, 0x33); // Respawn packet cPlayer * Player = m_Client->GetPlayer(); Pkt.WriteBEInt32(static_cast(a_Dimension)); Pkt.WriteBEUInt8(2); // TODO: Difficulty (set to Normal) Pkt.WriteBEUInt8(static_cast(Player->GetEffectiveGameMode())); Pkt.WriteString("default"); } void cProtocol_1_9_0::SendExperience(void) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x3d); // Experience Packet cPlayer * Player = m_Client->GetPlayer(); Pkt.WriteBEFloat(Player->GetXpPercentage()); Pkt.WriteVarInt32(static_cast(Player->GetXpLevel())); Pkt.WriteVarInt32(static_cast(Player->GetCurrentXp())); } void cProtocol_1_9_0::SendExperienceOrb(const cExpOrb & a_ExpOrb) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x01); // Spawn experience orb packet Pkt.WriteVarInt32(a_ExpOrb.GetUniqueID()); Pkt.WriteBEDouble(a_ExpOrb.GetPosX()); Pkt.WriteBEDouble(a_ExpOrb.GetPosY()); Pkt.WriteBEDouble(a_ExpOrb.GetPosZ()); Pkt.WriteBEInt16(static_cast(a_ExpOrb.GetReward())); } void cProtocol_1_9_0::SendScoreboardObjective(const AString & a_Name, const AString & a_DisplayName, Byte a_Mode) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x3f); // Scoreboard objective packet Pkt.WriteString(a_Name); Pkt.WriteBEUInt8(a_Mode); if ((a_Mode == 0) || (a_Mode == 2)) { Pkt.WriteString(a_DisplayName); Pkt.WriteString("integer"); } } void cProtocol_1_9_0::SendScoreUpdate(const AString & a_Objective, const AString & a_Player, cObjective::Score a_Score, Byte a_Mode) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x42); // Update score packet Pkt.WriteString(a_Player); Pkt.WriteBEUInt8(a_Mode); Pkt.WriteString(a_Objective); if (a_Mode != 1) { Pkt.WriteVarInt32(static_cast(a_Score)); } } void cProtocol_1_9_0::SendDisplayObjective(const AString & a_Objective, cScoreboard::eDisplaySlot a_Display) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x38); // Display scoreboard packet Pkt.WriteBEUInt8(static_cast(a_Display)); Pkt.WriteString(a_Objective); } void cProtocol_1_9_0::SendSetSubTitle(const cCompositeChat & a_SubTitle) { SendSetRawSubTitle(a_SubTitle.CreateJsonString(false)); } void cProtocol_1_9_0::SendSetRawSubTitle(const AString & a_SubTitle) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x45); // Title packet Pkt.WriteVarInt32(1); // Set subtitle Pkt.WriteString(a_SubTitle); } void cProtocol_1_9_0::SendSetTitle(const cCompositeChat & a_Title) { SendSetRawTitle(a_Title.CreateJsonString(false)); } void cProtocol_1_9_0::SendSetRawTitle(const AString & a_Title) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x45); // Title packet Pkt.WriteVarInt32(0); // Set title Pkt.WriteString(a_Title); } void cProtocol_1_9_0::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, 0x19); // Named sound effect packet Pkt.WriteString(a_SoundName); Pkt.WriteVarInt32(0); // Master sound category (may want to be changed to a parameter later) Pkt.WriteBEInt32(static_cast(a_X * 8.0)); Pkt.WriteBEInt32(static_cast(a_Y * 8.0)); Pkt.WriteBEInt32(static_cast(a_Z * 8.0)); Pkt.WriteBEFloat(a_Volume); Pkt.WriteBEUInt8(static_cast(a_Pitch * 63)); } void cProtocol_1_9_0::SendSoundParticleEffect(const EffectID a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x21); // Effect packet Pkt.WriteBEInt32(static_cast(a_EffectID)); Pkt.WritePosition64(a_SrcX, a_SrcY, a_SrcZ); Pkt.WriteBEInt32(a_Data); Pkt.WriteBool(false); } void cProtocol_1_9_0::SendSpawnFallingBlock(const cFallingBlock & a_FallingBlock) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x00); // Spawn Object packet Pkt.WriteVarInt32(a_FallingBlock.GetUniqueID()); // TODO: Bad way to write a UUID, and it's not a true UUID, but this is functional for now. Pkt.WriteBEUInt64(0); Pkt.WriteBEUInt64(a_FallingBlock.GetUniqueID()); Pkt.WriteBEUInt8(70); // Falling block Pkt.WriteBEDouble(a_FallingBlock.GetPosX()); Pkt.WriteBEDouble(a_FallingBlock.GetPosY()); Pkt.WriteBEDouble(a_FallingBlock.GetPosZ()); Pkt.WriteByteAngle(a_FallingBlock.GetYaw()); Pkt.WriteByteAngle(a_FallingBlock.GetPitch()); Pkt.WriteBEInt32(static_cast(a_FallingBlock.GetBlockType()) | (static_cast(a_FallingBlock.GetBlockMeta()) << 12)); Pkt.WriteBEInt16(static_cast(a_FallingBlock.GetSpeedX() * 400)); Pkt.WriteBEInt16(static_cast(a_FallingBlock.GetSpeedY() * 400)); Pkt.WriteBEInt16(static_cast(a_FallingBlock.GetSpeedZ() * 400)); } void cProtocol_1_9_0::SendSpawnMob(const cMonster & a_Mob) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x03); // Spawn Mob packet Pkt.WriteVarInt32(a_Mob.GetUniqueID()); // TODO: Bad way to write a UUID, and it's not a true UUID, but this is functional for now. Pkt.WriteBEUInt64(0); Pkt.WriteBEUInt64(a_Mob.GetUniqueID()); Pkt.WriteBEUInt8(static_cast(a_Mob.GetMobType())); Pkt.WriteBEDouble(a_Mob.GetPosX()); Pkt.WriteBEDouble(a_Mob.GetPosY()); Pkt.WriteBEDouble(a_Mob.GetPosZ()); Pkt.WriteByteAngle(a_Mob.GetPitch()); Pkt.WriteByteAngle(a_Mob.GetHeadYaw()); Pkt.WriteByteAngle(a_Mob.GetYaw()); Pkt.WriteBEInt16(static_cast(a_Mob.GetSpeedX() * 400)); Pkt.WriteBEInt16(static_cast(a_Mob.GetSpeedY() * 400)); Pkt.WriteBEInt16(static_cast(a_Mob.GetSpeedZ() * 400)); WriteEntityMetadata(Pkt, a_Mob); Pkt.WriteBEUInt8(0xff); // Metadata terminator } void cProtocol_1_9_0::SendSpawnObject(const cEntity & a_Entity, char a_ObjectType, int a_ObjectData, Byte a_Yaw, Byte a_Pitch) { ASSERT(m_State == 3); // In game mode? double PosX = a_Entity.GetPosX(); double PosZ = a_Entity.GetPosZ(); double Yaw = a_Entity.GetYaw(); if (a_ObjectType == 71) { FixItemFramePositions(a_ObjectData, PosX, PosZ, Yaw); } cPacketizer Pkt(*this, 0x00); // Spawn Object packet Pkt.WriteVarInt32(a_Entity.GetUniqueID()); // TODO: Bad way to write a UUID, and it's not a true UUID, but this is functional for now. Pkt.WriteBEUInt64(0); Pkt.WriteBEUInt64(a_Entity.GetUniqueID()); Pkt.WriteBEUInt8(static_cast(a_ObjectType)); Pkt.WriteBEDouble(PosX); Pkt.WriteBEDouble(a_Entity.GetPosY()); Pkt.WriteBEDouble(PosZ); Pkt.WriteByteAngle(a_Entity.GetPitch()); Pkt.WriteByteAngle(Yaw); Pkt.WriteBEInt32(a_ObjectData); Pkt.WriteBEInt16(static_cast(a_Entity.GetSpeedX() * 400)); Pkt.WriteBEInt16(static_cast(a_Entity.GetSpeedY() * 400)); Pkt.WriteBEInt16(static_cast(a_Entity.GetSpeedZ() * 400)); } void cProtocol_1_9_0::SendSpawnVehicle(const cEntity & a_Vehicle, char a_VehicleType, char a_VehicleSubType) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x00); // Spawn Object packet Pkt.WriteVarInt32(a_Vehicle.GetUniqueID()); // TODO: Bad way to write a UUID, and it's not a true UUID, but this is functional for now. Pkt.WriteBEUInt64(0); Pkt.WriteBEUInt64(a_Vehicle.GetUniqueID()); Pkt.WriteBEUInt8(static_cast(a_VehicleType)); Pkt.WriteBEDouble(a_Vehicle.GetPosX()); Pkt.WriteBEDouble(a_Vehicle.GetPosY()); Pkt.WriteBEDouble(a_Vehicle.GetPosZ()); Pkt.WriteByteAngle(a_Vehicle.GetPitch()); Pkt.WriteByteAngle(a_Vehicle.GetYaw()); Pkt.WriteBEInt32(a_VehicleSubType); Pkt.WriteBEInt16(static_cast(a_Vehicle.GetSpeedX() * 400)); Pkt.WriteBEInt16(static_cast(a_Vehicle.GetSpeedY() * 400)); Pkt.WriteBEInt16(static_cast(a_Vehicle.GetSpeedZ() * 400)); } void cProtocol_1_9_0::SendStatistics(const cStatManager & a_Manager) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x07); // Statistics packet Pkt.WriteVarInt32(statCount); // TODO 2014-05-11 xdot: Optimization: Send "dirty" statistics only size_t Count = static_cast(statCount); for (size_t i = 0; i < Count; ++i) { StatValue Value = a_Manager.GetValue(static_cast(i)); const AString & StatName = cStatInfo::GetName(static_cast(i)); Pkt.WriteString(StatName); Pkt.WriteVarInt32(static_cast(Value)); } } void cProtocol_1_9_0::SendTabCompletionResults(const AStringVector & a_Results) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x0e); // Tab-Complete packet Pkt.WriteVarInt32(static_cast(a_Results.size())); for (AStringVector::const_iterator itr = a_Results.begin(), end = a_Results.end(); itr != end; ++itr) { Pkt.WriteString(*itr); } } void cProtocol_1_9_0::SendTeleportEntity(const cEntity & a_Entity) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x4a); // Entity teleport packet Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteBEDouble(a_Entity.GetPosX()); Pkt.WriteBEDouble(a_Entity.GetPosY()); Pkt.WriteBEDouble(a_Entity.GetPosZ()); Pkt.WriteByteAngle(a_Entity.GetYaw()); Pkt.WriteByteAngle(a_Entity.GetPitch()); Pkt.WriteBool(a_Entity.IsOnGround()); } void cProtocol_1_9_0::SendThunderbolt(int a_BlockX, int a_BlockY, int a_BlockZ) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x02); // Spawn Global Entity packet Pkt.WriteVarInt32(0); // EntityID = 0, always Pkt.WriteBEUInt8(1); // Type = Thunderbolt Pkt.WriteBEDouble(a_BlockX); Pkt.WriteBEDouble(a_BlockY); Pkt.WriteBEDouble(a_BlockZ); } void cProtocol_1_9_0::SendTitleTimes(int a_FadeInTicks, int a_DisplayTicks, int a_FadeOutTicks) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x45); // Title packet Pkt.WriteVarInt32(2); // Set title display times Pkt.WriteBEInt32(a_FadeInTicks); Pkt.WriteBEInt32(a_DisplayTicks); Pkt.WriteBEInt32(a_FadeOutTicks); } void cProtocol_1_9_0::SendTimeUpdate(Int64 a_WorldAge, Int64 a_TimeOfDay, bool a_DoDaylightCycle) { ASSERT(m_State == 3); // In game mode? if (!a_DoDaylightCycle) { // When writing a "-" before the number the client ignores it but it will stop the client-side time expiration. a_TimeOfDay = std::min(-a_TimeOfDay, -1LL); } cPacketizer Pkt(*this, 0x44); // Time update packet Pkt.WriteBEInt64(a_WorldAge); Pkt.WriteBEInt64(a_TimeOfDay); } void cProtocol_1_9_0::SendUnloadChunk(int a_ChunkX, int a_ChunkZ) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x1d); // Unload chunk packet Pkt.WriteBEInt32(a_ChunkX); Pkt.WriteBEInt32(a_ChunkZ); } void cProtocol_1_9_0::SendUpdateBlockEntity(cBlockEntity & a_BlockEntity) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x09); // Update tile entity packet Pkt.WritePosition64(a_BlockEntity.GetPosX(), a_BlockEntity.GetPosY(), 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 case E_BLOCK_BEACON: Action = 3; break; // Update beacon entity case E_BLOCK_HEAD: Action = 4; break; // Update Mobhead entity case E_BLOCK_FLOWER_POT: Action = 5; break; // Update flower pot case E_BLOCK_BED: Action = 11; break; // Update bed color default: ASSERT(!"Unhandled or unimplemented BlockEntity update request!"); break; } Pkt.WriteBEUInt8(Action); WriteBlockEntity(Pkt, a_BlockEntity); } void cProtocol_1_9_0::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_State == 3); // In game mode? cPacketizer Pkt(*this, 0x46); // Update sign packet Pkt.WritePosition64(a_BlockX, a_BlockY, a_BlockZ); Json::StyledWriter JsonWriter; AString Lines[] = { a_Line1, a_Line2, a_Line3, a_Line4 }; for (size_t i = 0; i < ARRAYCOUNT(Lines); i++) { Json::Value RootValue; RootValue["text"] = Lines[i]; Pkt.WriteString(JsonWriter.write(RootValue).c_str()); } } void cProtocol_1_9_0::SendUseBed(const cEntity & a_Entity, int a_BlockX, int a_BlockY, int a_BlockZ) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x2f); // Use bed Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WritePosition64(a_BlockX, a_BlockY, a_BlockZ); } void cProtocol_1_9_0::SendWeather(eWeather a_Weather) { ASSERT(m_State == 3); // In game mode? { cPacketizer Pkt(*this, 0x1e); // Change Game State packet Pkt.WriteBEUInt8((a_Weather == wSunny) ? 1 : 2); // End rain / begin rain Pkt.WriteBEFloat(0); // Unused for weather } // TODO: Fade effect, somehow } void cProtocol_1_9_0::SendWholeInventory(const cWindow & a_Window) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x14); // Window Items packet Pkt.WriteBEInt8(a_Window.GetWindowID()); Pkt.WriteBEInt16(static_cast(a_Window.GetNumSlots())); cItems Slots; a_Window.GetSlots(*(m_Client->GetPlayer()), Slots); for (cItems::const_iterator itr = Slots.begin(), end = Slots.end(); itr != end; ++itr) { WriteItem(Pkt, *itr); } // for itr - Slots[] } void cProtocol_1_9_0::SendWindowClose(const cWindow & a_Window) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x12); // Close window packet Pkt.WriteBEInt8(a_Window.GetWindowID()); } void cProtocol_1_9_0::SendWindowOpen(const cWindow & a_Window) { ASSERT(m_State == 3); // In game mode? if (a_Window.GetWindowType() < 0) { // Do not send this packet for player inventory windows return; } cPacketizer Pkt(*this, 0x13); // Open window packet Pkt.WriteBEInt8(a_Window.GetWindowID()); Pkt.WriteString(a_Window.GetWindowTypeName()); Pkt.WriteString(Printf("{\"text\":\"%s\"}", a_Window.GetWindowTitle().c_str())); switch (a_Window.GetWindowType()) { case cWindow::wtWorkbench: case cWindow::wtEnchantment: case cWindow::wtAnvil: { Pkt.WriteBEInt8(0); break; } default: { Pkt.WriteBEInt8(static_cast(a_Window.GetNumNonInventorySlots())); break; } } if (a_Window.GetWindowType() == cWindow::wtAnimalChest) { Pkt.WriteBEInt32(0); // TODO: The animal's EntityID } } void cProtocol_1_9_0::SendWindowProperty(const cWindow & a_Window, short a_Property, short a_Value) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x15); // Window Property packet Pkt.WriteBEInt8(a_Window.GetWindowID()); Pkt.WriteBEInt16(a_Property); Pkt.WriteBEInt16(a_Value); } bool cProtocol_1_9_0::CompressPacket(const AString & a_Packet, AString & a_CompressedData) { // Compress the data: char CompressedData[MAX_COMPRESSED_PACKET_LEN]; uLongf CompressedSize = compressBound(static_cast(a_Packet.size())); if (CompressedSize >= MAX_COMPRESSED_PACKET_LEN) { ASSERT(!"Too high packet size."); return false; } int Status = compress2( reinterpret_cast(CompressedData), &CompressedSize, reinterpret_cast(a_Packet.data()), static_cast(a_Packet.size()), Z_DEFAULT_COMPRESSION ); if (Status != Z_OK) { return false; } AString LengthData; cByteBuffer Buffer(20); Buffer.WriteVarInt32(static_cast(a_Packet.size())); Buffer.ReadAll(LengthData); Buffer.CommitRead(); Buffer.WriteVarInt32(static_cast(CompressedSize + LengthData.size())); Buffer.WriteVarInt32(static_cast(a_Packet.size())); Buffer.ReadAll(LengthData); Buffer.CommitRead(); a_CompressedData.clear(); a_CompressedData.reserve(LengthData.size() + CompressedSize); a_CompressedData.append(LengthData.data(), LengthData.size()); a_CompressedData.append(CompressedData, CompressedSize); return true; } int cProtocol_1_9_0::GetParticleID(const AString & a_ParticleName) { static std::map ParticleMap; if (ParticleMap.empty()) { // Initialize the ParticleMap: ParticleMap["explode"] = 0; ParticleMap["largeexplode"] = 1; ParticleMap["hugeexplosion"] = 2; ParticleMap["fireworksspark"] = 3; ParticleMap["bubble"] = 4; ParticleMap["splash"] = 5; ParticleMap["wake"] = 6; ParticleMap["suspended"] = 7; ParticleMap["depthsuspend"] = 8; ParticleMap["crit"] = 9; ParticleMap["magiccrit"] = 10; ParticleMap["smoke"] = 11; ParticleMap["largesmoke"] = 12; ParticleMap["spell"] = 13; ParticleMap["instantspell"] = 14; ParticleMap["mobspell"] = 15; ParticleMap["mobspellambient"] = 16; ParticleMap["witchmagic"] = 17; ParticleMap["dripwater"] = 18; ParticleMap["driplava"] = 19; ParticleMap["angryvillager"] = 20; ParticleMap["happyvillager"] = 21; ParticleMap["townaura"] = 22; ParticleMap["note"] = 23; ParticleMap["portal"] = 24; ParticleMap["enchantmenttable"] = 25; ParticleMap["flame"] = 26; ParticleMap["lava"] = 27; ParticleMap["footstep"] = 28; ParticleMap["cloud"] = 29; ParticleMap["reddust"] = 30; ParticleMap["snowballpoof"] = 31; ParticleMap["snowshovel"] = 32; ParticleMap["slime"] = 33; ParticleMap["heart"] = 34; ParticleMap["barrier"] = 35; ParticleMap["iconcrack"] = 36; ParticleMap["blockcrack"] = 37; ParticleMap["blockdust"] = 38; ParticleMap["droplet"] = 39; ParticleMap["take"] = 40; ParticleMap["mobappearance"] = 41; ParticleMap["dragonbreath"] = 42; ParticleMap["endrod"] = 43; ParticleMap["damageindicator"] = 44; ParticleMap["sweepattack"] = 45; ParticleMap["fallingdust"] = 46; ParticleMap["totem"] = 47; ParticleMap["spit"] = 48; } AString ParticleName = StrToLower(a_ParticleName); if (ParticleMap.find(ParticleName) == ParticleMap.end()) { LOGWARNING("Unknown particle: %s", a_ParticleName.c_str()); ASSERT(!"Unknown particle"); return 0; } return ParticleMap[ParticleName]; } void cProtocol_1_9_0::FixItemFramePositions(int a_ObjectData, double & a_PosX, double & a_PosZ, double & a_Yaw) { switch (a_ObjectData) { case 0: { a_PosZ += 1; a_Yaw = 0; break; } case 1: { a_PosX -= 1; a_Yaw = 90; break; } case 2: { a_PosZ -= 1; a_Yaw = 180; break; } case 3: { a_PosX += 1; a_Yaw = 270; break; } } } void cProtocol_1_9_0::AddReceivedData(const char * a_Data, size_t a_Size) { // Write the incoming data into the comm log file: if (g_ShouldLogCommIn && m_CommLogFile.IsOpen()) { if (m_ReceivedData.GetReadableSpace() > 0) { AString AllData; size_t OldReadableSpace = m_ReceivedData.GetReadableSpace(); m_ReceivedData.ReadAll(AllData); m_ReceivedData.ResetRead(); m_ReceivedData.SkipRead(m_ReceivedData.GetReadableSpace() - OldReadableSpace); ASSERT(m_ReceivedData.GetReadableSpace() == OldReadableSpace); AString Hex; CreateHexDump(Hex, AllData.data(), AllData.size(), 16); m_CommLogFile.Printf("Incoming data, " SIZE_T_FMT " (0x" SIZE_T_FMT_HEX ") unparsed bytes already present in buffer:\n%s\n", AllData.size(), AllData.size(), Hex.c_str() ); } AString Hex; CreateHexDump(Hex, a_Data, a_Size, 16); m_CommLogFile.Printf("Incoming data: %u (0x%x) bytes: \n%s\n", static_cast(a_Size), static_cast(a_Size), Hex.c_str() ); m_CommLogFile.Flush(); } if (!m_ReceivedData.Write(a_Data, a_Size)) { // Too much data in the incoming queue, report to caller: m_Client->PacketBufferFull(); return; } // Handle all complete packets: for (;;) { UInt32 PacketLen; if (!m_ReceivedData.ReadVarInt(PacketLen)) { // Not enough data m_ReceivedData.ResetRead(); break; } if (!m_ReceivedData.CanReadBytes(PacketLen)) { // The full packet hasn't been received yet m_ReceivedData.ResetRead(); break; } // Check packet for compression: UInt32 UncompressedSize = 0; AString UncompressedData; if (m_State == 3) { UInt32 NumBytesRead = static_cast(m_ReceivedData.GetReadableSpace()); if (!m_ReceivedData.ReadVarInt(UncompressedSize)) { m_Client->Kick("Compression packet incomplete"); return; } NumBytesRead -= static_cast(m_ReceivedData.GetReadableSpace()); // How many bytes has the UncompressedSize taken up? ASSERT(PacketLen > NumBytesRead); PacketLen -= NumBytesRead; if (UncompressedSize > 0) { // Decompress the data: AString CompressedData; VERIFY(m_ReceivedData.ReadString(CompressedData, PacketLen)); if (InflateString(CompressedData.data(), PacketLen, UncompressedData) != Z_OK) { m_Client->Kick("Compression failure"); return; } PacketLen = static_cast(UncompressedData.size()); if (PacketLen != UncompressedSize) { m_Client->Kick("Wrong uncompressed packet size given"); return; } } } // Move the packet payload to a separate cByteBuffer, bb: cByteBuffer bb(PacketLen + 1); if (UncompressedSize == 0) { // No compression was used, move directly VERIFY(m_ReceivedData.ReadToByteBuffer(bb, static_cast(PacketLen))); } else { // Compression was used, move the uncompressed data: VERIFY(bb.Write(UncompressedData.data(), UncompressedData.size())); } m_ReceivedData.CommitRead(); UInt32 PacketType; if (!bb.ReadVarInt(PacketType)) { // Not enough data break; } // Write one NUL extra, so that we can detect over-reads bb.Write("\0", 1); // Log the packet info into the comm log file: if (g_ShouldLogCommIn && m_CommLogFile.IsOpen()) { AString PacketData; bb.ReadAll(PacketData); bb.ResetRead(); bb.ReadVarInt(PacketType); // We have already read the packet type once, it will be there again ASSERT(PacketData.size() > 0); // We have written an extra NUL, so there had to be at least one byte read PacketData.resize(PacketData.size() - 1); AString PacketDataHex; CreateHexDump(PacketDataHex, PacketData.data(), PacketData.size(), 16); m_CommLogFile.Printf("Next incoming packet is type %u (0x%x), length %u (0x%x) at state %d. Payload:\n%s\n", PacketType, PacketType, PacketLen, PacketLen, m_State, PacketDataHex.c_str() ); } if (!HandlePacket(bb, PacketType)) { // Unknown packet, already been reported, but without the length. Log the length here: LOGWARNING("Protocol 1.9: Unhandled packet: type 0x%x, state %d, length %u", PacketType, m_State, PacketLen); #ifdef _DEBUG // Dump the packet contents into the log: bb.ResetRead(); AString Packet; bb.ReadAll(Packet); Packet.resize(Packet.size() - 1); // Drop the final NUL pushed there for over-read detection AString Out; CreateHexDump(Out, Packet.data(), Packet.size(), 24); LOGD("Packet contents:\n%s", Out.c_str()); #endif // _DEBUG // Put a message in the comm log: if (g_ShouldLogCommIn && m_CommLogFile.IsOpen()) { m_CommLogFile.Printf("^^^^^^ Unhandled packet ^^^^^^\n\n\n"); } return; } // The packet should have 1 byte left in the buffer - the NUL we had added if (bb.GetReadableSpace() != 1) { // Read more or less than packet length, report as error LOGWARNING("Protocol 1.9: Wrong number of bytes read for packet 0x%x, state %d. Read " SIZE_T_FMT " bytes, packet contained %u bytes", PacketType, m_State, bb.GetUsedSpace() - bb.GetReadableSpace(), PacketLen ); // Put a message in the comm log: if (g_ShouldLogCommIn && m_CommLogFile.IsOpen()) { m_CommLogFile.Printf("^^^^^^ Wrong number of bytes read for this packet (exp %d left, got " SIZE_T_FMT " left) ^^^^^^\n\n\n", 1, bb.GetReadableSpace() ); m_CommLogFile.Flush(); } ASSERT(!"Read wrong number of bytes!"); m_Client->PacketError(PacketType); } } // for (ever) // Log any leftover bytes into the logfile: if (g_ShouldLogCommIn && (m_ReceivedData.GetReadableSpace() > 0) && m_CommLogFile.IsOpen()) { AString AllData; size_t OldReadableSpace = m_ReceivedData.GetReadableSpace(); m_ReceivedData.ReadAll(AllData); m_ReceivedData.ResetRead(); m_ReceivedData.SkipRead(m_ReceivedData.GetReadableSpace() - OldReadableSpace); ASSERT(m_ReceivedData.GetReadableSpace() == OldReadableSpace); AString Hex; CreateHexDump(Hex, AllData.data(), AllData.size(), 16); m_CommLogFile.Printf("Protocol 1.9: There are " SIZE_T_FMT " (0x" SIZE_T_FMT_HEX ") bytes of non-parse-able data left in the buffer:\n%s", m_ReceivedData.GetReadableSpace(), m_ReceivedData.GetReadableSpace(), Hex.c_str() ); m_CommLogFile.Flush(); } } bool cProtocol_1_9_0::HandlePacket(cByteBuffer & a_ByteBuffer, UInt32 a_PacketType) { switch (m_State) { case 1: { // Status switch (a_PacketType) { case 0x00: HandlePacketStatusRequest(a_ByteBuffer); return true; case 0x01: HandlePacketStatusPing (a_ByteBuffer); return true; } break; } case 2: { // Login switch (a_PacketType) { case 0x00: HandlePacketLoginStart (a_ByteBuffer); return true; case 0x01: HandlePacketLoginEncryptionResponse(a_ByteBuffer); return true; } break; } case 3: { // Game switch (a_PacketType) { case 0x00: HandleConfirmTeleport (a_ByteBuffer); return true; case 0x01: HandlePacketTabComplete (a_ByteBuffer); return true; case 0x02: HandlePacketChatMessage (a_ByteBuffer); return true; case 0x03: HandlePacketClientStatus (a_ByteBuffer); return true; case 0x04: HandlePacketClientSettings (a_ByteBuffer); return true; case 0x05: break; // Confirm transaction - not used in MCS case 0x06: HandlePacketEnchantItem (a_ByteBuffer); return true; case 0x07: HandlePacketWindowClick (a_ByteBuffer); return true; case 0x08: HandlePacketWindowClose (a_ByteBuffer); return true; case 0x09: HandlePacketPluginMessage (a_ByteBuffer); return true; case 0x0a: HandlePacketUseEntity (a_ByteBuffer); return true; case 0x0b: HandlePacketKeepAlive (a_ByteBuffer); return true; case 0x0c: HandlePacketPlayerPos (a_ByteBuffer); return true; case 0x0d: HandlePacketPlayerPosLook (a_ByteBuffer); return true; case 0x0e: HandlePacketPlayerLook (a_ByteBuffer); return true; case 0x0f: HandlePacketPlayer (a_ByteBuffer); return true; case 0x10: HandlePacketVehicleMove (a_ByteBuffer); return true; case 0x11: HandlePacketBoatSteer (a_ByteBuffer); return true; case 0x12: HandlePacketPlayerAbilities (a_ByteBuffer); return true; case 0x13: HandlePacketBlockDig (a_ByteBuffer); return true; case 0x14: HandlePacketEntityAction (a_ByteBuffer); return true; case 0x15: HandlePacketSteerVehicle (a_ByteBuffer); return true; case 0x16: break; // Resource pack status - not yet implemented case 0x17: HandlePacketSlotSelect (a_ByteBuffer); return true; case 0x18: HandlePacketCreativeInventoryAction(a_ByteBuffer); return true; case 0x19: HandlePacketUpdateSign (a_ByteBuffer); return true; case 0x1a: HandlePacketAnimation (a_ByteBuffer); return true; case 0x1b: HandlePacketSpectate (a_ByteBuffer); return true; case 0x1c: HandlePacketBlockPlace (a_ByteBuffer); return true; case 0x1d: HandlePacketUseItem (a_ByteBuffer); return true; } break; } default: { // Received a packet in an unknown state, report: LOGWARNING("Received a packet in an unknown protocol state %d. Ignoring further packets.", m_State); // Cannot kick the client - we don't know this state and thus the packet number for the kick packet // Switch to a state when all further packets are silently ignored: m_State = 255; return false; } case 255: { // This is the state used for "not processing packets anymore" when we receive a bad packet from a client. // Do not output anything (the caller will do that for us), just return failure return false; } } // switch (m_State) // Unknown packet type, report to the ClientHandle: m_Client->PacketUnknown(a_PacketType); return false; } void cProtocol_1_9_0::HandlePacketStatusPing(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEInt64, Int64, Timestamp); cPacketizer Pkt(*this, 0x01); // Ping packet Pkt.WriteBEInt64(Timestamp); } void cProtocol_1_9_0::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer) { cServer * Server = cRoot::Get()->GetServer(); AString ServerDescription = Server->GetDescription(); auto NumPlayers = static_cast(Server->GetNumPlayers()); auto MaxPlayers = static_cast(Server->GetMaxPlayers()); AString Favicon = Server->GetFaviconData(); cRoot::Get()->GetPluginManager()->CallHookServerPing(*m_Client, ServerDescription, NumPlayers, MaxPlayers, Favicon); // Version: Json::Value Version; Version["name"] = "Cuberite 1.9"; Version["protocol"] = 107; // Players: Json::Value Players; Players["online"] = NumPlayers; Players["max"] = MaxPlayers; // TODO: Add "sample" // Description: Json::Value Description; Description["text"] = ServerDescription.c_str(); // Create the response: Json::Value ResponseValue; ResponseValue["version"] = Version; ResponseValue["players"] = Players; ResponseValue["description"] = Description; if (!Favicon.empty()) { ResponseValue["favicon"] = Printf("data:image/png;base64,%s", Favicon.c_str()); } Json::FastWriter Writer; AString Response = Writer.write(ResponseValue); cPacketizer Pkt(*this, 0x00); // Response packet Pkt.WriteString(Response); } void cProtocol_1_9_0::HandlePacketLoginEncryptionResponse(cByteBuffer & a_ByteBuffer) { UInt32 EncKeyLength, EncNonceLength; if (!a_ByteBuffer.ReadVarInt(EncKeyLength)) { return; } AString EncKey; if (!a_ByteBuffer.ReadString(EncKey, EncKeyLength)) { return; } if (!a_ByteBuffer.ReadVarInt(EncNonceLength)) { return; } AString EncNonce; if (!a_ByteBuffer.ReadString(EncNonce, EncNonceLength)) { return; } if ((EncKeyLength > MAX_ENC_LEN) || (EncNonceLength > MAX_ENC_LEN)) { LOGD("Too long encryption"); m_Client->Kick("Hacked client"); return; } // Decrypt EncNonce using privkey cRsaPrivateKey & rsaDecryptor = cRoot::Get()->GetServer()->GetPrivateKey(); UInt32 DecryptedNonce[MAX_ENC_LEN / sizeof(Int32)]; int res = rsaDecryptor.Decrypt(reinterpret_cast(EncNonce.data()), EncNonce.size(), reinterpret_cast(DecryptedNonce), sizeof(DecryptedNonce)); if (res != 4) { LOGD("Bad nonce length: got %d, exp %d", res, 4); m_Client->Kick("Hacked client"); return; } if (ntohl(DecryptedNonce[0]) != static_cast(reinterpret_cast(this))) { LOGD("Bad nonce value"); m_Client->Kick("Hacked client"); return; } // Decrypt the symmetric encryption key using privkey: Byte DecryptedKey[MAX_ENC_LEN]; res = rsaDecryptor.Decrypt(reinterpret_cast(EncKey.data()), EncKey.size(), DecryptedKey, sizeof(DecryptedKey)); if (res != 16) { LOGD("Bad key length"); m_Client->Kick("Hacked client"); return; } StartEncryption(DecryptedKey); m_Client->HandleLogin(m_Client->GetUsername()); } void cProtocol_1_9_0::HandlePacketLoginStart(cByteBuffer & a_ByteBuffer) { AString Username; if (!a_ByteBuffer.ReadVarUTF8String(Username)) { m_Client->Kick("Bad username"); return; } if (!m_Client->HandleHandshake(Username)) { // The client is not welcome here, they have been sent a Kick packet already return; } cServer * Server = cRoot::Get()->GetServer(); // If auth is required, then send the encryption request: if (Server->ShouldAuthenticate()) { cPacketizer Pkt(*this, 0x01); Pkt.WriteString(Server->GetServerID()); const AString & PubKeyDer = Server->GetPublicKeyDER(); Pkt.WriteVarInt32(static_cast(PubKeyDer.size())); Pkt.WriteBuf(PubKeyDer.data(), PubKeyDer.size()); Pkt.WriteVarInt32(4); Pkt.WriteBEInt32(static_cast(reinterpret_cast(this))); // Using 'this' as the cryptographic nonce, so that we don't have to generate one each time :) m_Client->SetUsername(Username); return; } m_Client->HandleLogin(Username); } void cProtocol_1_9_0::HandlePacketAnimation(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadVarInt, Int32, Hand); m_Client->HandleAnimation(0); // Packet exists solely for arm-swing notification } void cProtocol_1_9_0::HandlePacketBlockDig(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Status); int BlockX, BlockY, BlockZ; if (!a_ByteBuffer.ReadPosition64(BlockX, BlockY, BlockZ)) { return; } HANDLE_READ(a_ByteBuffer, ReadVarInt, Int32, Face); m_Client->HandleLeftClick(BlockX, BlockY, BlockZ, FaceIntToBlockFace(Face), Status); } void cProtocol_1_9_0::HandlePacketBlockPlace(cByteBuffer & a_ByteBuffer) { int BlockX, BlockY, BlockZ; if (!a_ByteBuffer.ReadPosition64(BlockX, BlockY, BlockZ)) { return; } HANDLE_READ(a_ByteBuffer, ReadVarInt, Int32, Face); HANDLE_READ(a_ByteBuffer, ReadVarInt, Int32, Hand); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, CursorX); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, CursorY); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, CursorZ); m_Client->HandleRightClick(BlockX, BlockY, BlockZ, FaceIntToBlockFace(Face), CursorX, CursorY, CursorZ, m_Client->GetPlayer()->GetEquippedItem()); } void cProtocol_1_9_0::HandlePacketBoatSteer(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBool, bool, RightPaddle); HANDLE_READ(a_ByteBuffer, ReadBool, bool, LeftPaddle); // Get the players vehicle cPlayer * Player = m_Client->GetPlayer(); cEntity * Vehicle = Player->GetAttached(); if (Vehicle) { if (Vehicle->GetEntityType() == cEntity::etBoat) { auto * Boat = reinterpret_cast(Vehicle); Boat->UpdatePaddles(RightPaddle, LeftPaddle); } } } void cProtocol_1_9_0::HandlePacketChatMessage(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Message); m_Client->HandleChat(Message); } void cProtocol_1_9_0::HandlePacketClientSettings(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Locale); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, ViewDistance); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, ChatFlags); HANDLE_READ(a_ByteBuffer, ReadBool, bool, ChatColors); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, SkinParts); HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, MainHand); m_Client->SetLocale(Locale); m_Client->SetViewDistance(ViewDistance); m_Client->GetPlayer()->SetSkinParts(SkinParts); m_Client->GetPlayer()->SetMainHand(static_cast(MainHand)); // TODO: Handle chat flags and chat colors } void cProtocol_1_9_0::HandlePacketClientStatus(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, ActionID); switch (ActionID) { case 0: { // Respawn m_Client->HandleRespawn(); break; } case 1: { // Request stats const cStatManager & Manager = m_Client->GetPlayer()->GetStatManager(); SendStatistics(Manager); break; } case 2: { // Open Inventory achievement m_Client->GetPlayer()->AwardAchievement(achOpenInv); break; } } } void cProtocol_1_9_0::HandleConfirmTeleport(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadVarInt32, UInt32, TeleportID); // Can we stop throwing away incoming player position packets? if (TeleportID == m_OutstandingTeleportId) { m_IsTeleportIdConfirmed = true; } } void cProtocol_1_9_0::HandlePacketCreativeInventoryAction(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEInt16, Int16, SlotNum); cItem Item; if (!ReadItem(a_ByteBuffer, Item)) { return; } m_Client->HandleCreativeInventory(SlotNum, Item, (SlotNum == -1) ? caLeftClickOutside : caLeftClick); } void cProtocol_1_9_0::HandlePacketEntityAction(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, PlayerID); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Action); HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, JumpBoost); switch (Action) { case 0: m_Client->HandleEntityCrouch(PlayerID, true); break; // Crouch case 1: m_Client->HandleEntityCrouch(PlayerID, false); break; // Uncrouch case 2: m_Client->HandleEntityLeaveBed(PlayerID); break; // Leave Bed case 3: m_Client->HandleEntitySprinting(PlayerID, true); break; // Start sprinting case 4: m_Client->HandleEntitySprinting(PlayerID, false); break; // Stop sprinting } } void cProtocol_1_9_0::HandlePacketKeepAlive(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, KeepAliveID); m_Client->HandleKeepAlive(KeepAliveID); } void cProtocol_1_9_0::HandlePacketPlayer(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBool, bool, IsOnGround); // TODO: m_Client->HandlePlayerOnGround(IsOnGround); } void cProtocol_1_9_0::HandlePacketPlayerAbilities(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Flags); HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, FlyingSpeed); HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, WalkingSpeed); // COnvert the bitfield into individual boolean flags: bool IsFlying = false, CanFly = false; if ((Flags & 2) != 0) { IsFlying = true; } if ((Flags & 4) != 0) { CanFly = true; } m_Client->HandlePlayerAbilities(CanFly, IsFlying, FlyingSpeed, WalkingSpeed); } void cProtocol_1_9_0::HandlePacketPlayerLook(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, Yaw); HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, Pitch); HANDLE_READ(a_ByteBuffer, ReadBool, bool, IsOnGround); m_Client->HandlePlayerLook(Yaw, Pitch, IsOnGround); } void cProtocol_1_9_0::HandlePacketPlayerPos(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, PosX); HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, PosY); HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, PosZ); HANDLE_READ(a_ByteBuffer, ReadBool, bool, IsOnGround); if (m_IsTeleportIdConfirmed) { m_Client->HandlePlayerPos(PosX, PosY, PosZ, PosY + (m_Client->GetPlayer()->IsCrouched() ? 1.54 : 1.62), IsOnGround); } } void cProtocol_1_9_0::HandlePacketPlayerPosLook(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, PosX); HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, PosY); HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, PosZ); HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, Yaw); HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, Pitch); HANDLE_READ(a_ByteBuffer, ReadBool, bool, IsOnGround); if (m_IsTeleportIdConfirmed) { m_Client->HandlePlayerMoveLook(PosX, PosY, PosZ, PosY + 1.62, Yaw, Pitch, IsOnGround); } } void cProtocol_1_9_0::HandlePacketPluginMessage(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Channel); // If the plugin channel is recognized vanilla, handle it directly: if (Channel.substr(0, 3) == "MC|") { HandleVanillaPluginMessage(a_ByteBuffer, Channel); // Skip any unread data (vanilla sometimes sends garbage at the end of a packet; #1692): if (a_ByteBuffer.GetReadableSpace() > 1) { LOGD("Protocol 1.8: Skipping garbage data at the end of a vanilla PluginMessage packet, %u bytes", static_cast(a_ByteBuffer.GetReadableSpace() - 1) ); a_ByteBuffer.SkipRead(a_ByteBuffer.GetReadableSpace() - 1); } return; } // Read the plugin message and relay to clienthandle: AString Data; VERIFY(a_ByteBuffer.ReadString(Data, a_ByteBuffer.GetReadableSpace() - 1)); // Always succeeds m_Client->HandlePluginMessage(Channel, Data); } void cProtocol_1_9_0::HandlePacketSlotSelect(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEInt16, Int16, SlotNum); m_Client->HandleSlotSelected(SlotNum); } void cProtocol_1_9_0::HandlePacketSpectate(cByteBuffer & a_ByteBuffer) { cUUID playerUUID; if (!a_ByteBuffer.ReadUUID(playerUUID)) { return; } m_Client->HandleSpectate(playerUUID); } void cProtocol_1_9_0::HandlePacketSteerVehicle(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, Sideways); HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, Forward); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Flags); if ((Flags & 0x2) != 0) { m_Client->HandleUnmount(); } else if ((Flags & 0x1) != 0) { // TODO: Handle vehicle jump (for animals) } else { m_Client->HandleSteerVehicle(Forward, Sideways); } } void cProtocol_1_9_0::HandlePacketTabComplete(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Text); HANDLE_READ(a_ByteBuffer, ReadBool, bool, AssumeCommand); HANDLE_READ(a_ByteBuffer, ReadBool, bool, HasPosition); if (HasPosition) { HANDLE_READ(a_ByteBuffer, ReadBEInt64, Int64, Position); } m_Client->HandleTabCompletion(Text); } void cProtocol_1_9_0::HandlePacketUpdateSign(cByteBuffer & a_ByteBuffer) { int BlockX, BlockY, BlockZ; if (!a_ByteBuffer.ReadPosition64(BlockX, BlockY, BlockZ)) { return; } AString Lines[4]; for (int i = 0; i < 4; i++) { HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Line); Lines[i] = Line; } m_Client->HandleUpdateSign(BlockX, BlockY, BlockZ, Lines[0], Lines[1], Lines[2], Lines[3]); } void cProtocol_1_9_0::HandlePacketUseEntity(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, EntityID); HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, Type); switch (Type) { case 0: { HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, Hand); if (Hand == MAIN_HAND) // TODO: implement handling of off-hand actions; ignore them for now to avoid processing actions twice { m_Client->HandleUseEntity(EntityID, false); } break; } case 1: { m_Client->HandleUseEntity(EntityID, true); break; } case 2: { HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, TargetX); HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, TargetY); HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, TargetZ); HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, Hand); // TODO: Do anything break; } default: { ASSERT(!"Unhandled use entity type!"); return; } } } void cProtocol_1_9_0::HandlePacketUseItem(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt64, Hand); // Didn't click a block - emulate old values used with place block of -1, -1, -1 (and BLOCK_FACE_NONE). m_Client->HandleRightClick(-1, 255, -1, BLOCK_FACE_NONE, 0, 0, 0, m_Client->GetPlayer()->GetEquippedItem()); } void cProtocol_1_9_0::HandlePacketEnchantItem(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, WindowID); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Enchantment); m_Client->HandleEnchantItem(WindowID, Enchantment); } void cProtocol_1_9_0::HandlePacketVehicleMove(cByteBuffer & a_ByteBuffer) { // This handles updating the vehicles location server side HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, xPos); HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, yPos); HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, zPos); HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, yaw); HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, pitch); // Get the players vehicle cEntity * Vehicle = m_Client->GetPlayer()->GetAttached(); if (Vehicle) { Vehicle->SetPosX(xPos); Vehicle->SetPosY(yPos); Vehicle->SetPosZ(zPos); Vehicle->SetYaw(yaw); Vehicle->SetPitch(pitch); } } void cProtocol_1_9_0::HandlePacketWindowClick(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, WindowID); HANDLE_READ(a_ByteBuffer, ReadBEInt16, Int16, SlotNum); HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Button); HANDLE_READ(a_ByteBuffer, ReadBEUInt16, UInt16, TransactionID); HANDLE_READ(a_ByteBuffer, ReadVarInt32, UInt32, Mode); cItem Item; ReadItem(a_ByteBuffer, Item); // Convert Button, Mode, SlotNum and HeldItem into eClickAction: eClickAction Action; switch ((Mode << 8) | Button) { case 0x0000: Action = (SlotNum != SLOT_NUM_OUTSIDE) ? caLeftClick : caLeftClickOutside; break; case 0x0001: Action = (SlotNum != SLOT_NUM_OUTSIDE) ? caRightClick : caRightClickOutside; break; case 0x0100: Action = caShiftLeftClick; break; case 0x0101: Action = caShiftRightClick; break; case 0x0200: Action = caNumber1; break; case 0x0201: Action = caNumber2; break; case 0x0202: Action = caNumber3; break; case 0x0203: Action = caNumber4; break; case 0x0204: Action = caNumber5; break; case 0x0205: Action = caNumber6; break; case 0x0206: Action = caNumber7; break; case 0x0207: Action = caNumber8; break; case 0x0208: Action = caNumber9; break; case 0x0302: Action = caMiddleClick; break; case 0x0400: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caLeftClickOutsideHoldNothing : caDropKey; break; case 0x0401: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caRightClickOutsideHoldNothing : caCtrlDropKey; break; case 0x0500: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caLeftPaintBegin : caUnknown; break; case 0x0501: Action = (SlotNum != SLOT_NUM_OUTSIDE) ? caLeftPaintProgress : caUnknown; break; case 0x0502: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caLeftPaintEnd : caUnknown; break; case 0x0504: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caRightPaintBegin : caUnknown; break; case 0x0505: Action = (SlotNum != SLOT_NUM_OUTSIDE) ? caRightPaintProgress : caUnknown; break; case 0x0506: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caRightPaintEnd : caUnknown; break; case 0x0508: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caMiddlePaintBegin : caUnknown; break; case 0x0509: Action = (SlotNum != SLOT_NUM_OUTSIDE) ? caMiddlePaintProgress : caUnknown; break; case 0x050a: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caMiddlePaintEnd : caUnknown; break; case 0x0600: Action = caDblClick; break; default: { LOGWARNING("Unhandled window click mode / button combination: %d (0x%x)", (Mode << 8) | Button, (Mode << 8) | Button); Action = caUnknown; break; } } m_Client->HandleWindowClick(WindowID, SlotNum, Action, Item); } void cProtocol_1_9_0::HandlePacketWindowClose(cByteBuffer & a_ByteBuffer) { HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, WindowID); m_Client->HandleWindowClose(WindowID); } void cProtocol_1_9_0::HandleVanillaPluginMessage(cByteBuffer & a_ByteBuffer, const AString & a_Channel) { if (a_Channel == "MC|AdvCdm") { HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Mode) switch (Mode) { case 0x00: { HANDLE_READ(a_ByteBuffer, ReadBEInt32, Int32, BlockX); HANDLE_READ(a_ByteBuffer, ReadBEInt32, Int32, BlockY); HANDLE_READ(a_ByteBuffer, ReadBEInt32, Int32, BlockZ); HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Command); m_Client->HandleCommandBlockBlockChange(BlockX, BlockY, BlockZ, Command); break; } default: { m_Client->SendChat(Printf("Failure setting command block command; unhandled mode %u (0x%02x)", Mode, Mode), mtFailure); LOG("Unhandled MC|AdvCdm packet mode."); return; } } // switch (Mode) return; } else if (a_Channel == "MC|Brand") { HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Brand); m_Client->SetClientBrand(Brand); // Send back our brand, including the length: SendPluginMessage("MC|Brand", "\x08""Cuberite"); return; } else if (a_Channel == "MC|Beacon") { HANDLE_READ(a_ByteBuffer, ReadBEInt32, Int32, Effect1); HANDLE_READ(a_ByteBuffer, ReadBEInt32, Int32, Effect2); m_Client->HandleBeaconSelection(Effect1, Effect2); return; } else if (a_Channel == "MC|ItemName") { HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, ItemName); m_Client->HandleAnvilItemName(ItemName); return; } else if (a_Channel == "MC|TrSel") { HANDLE_READ(a_ByteBuffer, ReadBEInt32, Int32, SlotNum); m_Client->HandleNPCTrade(SlotNum); return; } else if ((a_Channel == "MC|BSign") || (a_Channel == "MC|BEdit")) { HANDLE_READ(a_ByteBuffer, ReadBEInt16, Int16, ItemID); if (ItemID != E_ITEM_BOOK_AND_QUILL) { // Item is not a writeable book return; } // Skip item count (1 byte) and item damage (2 bytes) a_ByteBuffer.SkipRead(3); // Read nbt content AString BookData; a_ByteBuffer.ReadString(BookData, a_ByteBuffer.GetReadableSpace() - 1); cParsedNBT NBT(BookData.c_str(), BookData.size()); cItem BookItem; if (a_Channel == "MC|BSign") { BookItem = cItem(E_ITEM_WRITTEN_BOOK); // Add the text to a json string cBookContent::ParseFromNBT(0, BookItem.m_BookContent, NBT, true); } else { BookItem = cItem(E_ITEM_BOOK_AND_QUILL); cBookContent::ParseFromNBT(0, BookItem.m_BookContent, NBT); } cPlayer * Player = m_Client->GetPlayer(); // If true, player has clicked on the sign button bool IsSigned = (BookItem.m_ItemType == E_ITEM_WRITTEN_BOOK) ? true : false; if (cRoot::Get()->GetPluginManager()->CallHookPlayerEditingBook(*Player, BookItem.m_BookContent, IsSigned)) { // Plugin denied the editing of the book return; } // Book has been edited, inform plugins cRoot::Get()->GetPluginManager()->CallHookPlayerEditedBook(*Player, BookItem.m_BookContent, IsSigned); cInventory & inv = Player->GetInventory(); inv.SetHotbarSlot(inv.GetEquippedSlotNum(), BookItem); SendWholeInventory(*Player->GetWindow()); // TODO: Use SendSlot return; } LOG("Unhandled vanilla plugin channel: \"%s\".", a_Channel.c_str()); // Read the payload and send it through to the clienthandle: AString Message; VERIFY(a_ByteBuffer.ReadString(Message, a_ByteBuffer.GetReadableSpace() - 1)); m_Client->HandlePluginMessage(a_Channel, Message); } void cProtocol_1_9_0::SendData(const char * a_Data, size_t a_Size) { if (m_IsEncrypted) { Byte Encrypted[8192]; // Larger buffer, we may be sending lots of data (chunks) while (a_Size > 0) { size_t NumBytes = (a_Size > sizeof(Encrypted)) ? sizeof(Encrypted) : a_Size; m_Encryptor.ProcessData(Encrypted, reinterpret_cast(const_cast(a_Data)), NumBytes); m_Client->SendData(reinterpret_cast(Encrypted), NumBytes); a_Size -= NumBytes; a_Data += NumBytes; } } else { m_Client->SendData(a_Data, a_Size); } } bool cProtocol_1_9_0::ReadItem(cByteBuffer & a_ByteBuffer, cItem & a_Item, size_t a_KeepRemainingBytes) { HANDLE_PACKET_READ(a_ByteBuffer, ReadBEInt16, Int16, ItemType); if (ItemType == -1) { // The item is empty, no more data follows a_Item.Empty(); return true; } a_Item.m_ItemType = ItemType; HANDLE_PACKET_READ(a_ByteBuffer, ReadBEInt8, Int8, ItemCount); HANDLE_PACKET_READ(a_ByteBuffer, ReadBEInt16, Int16, ItemDamage); a_Item.m_ItemCount = ItemCount; a_Item.m_ItemDamage = ItemDamage; if (ItemCount <= 0) { a_Item.Empty(); } AString Metadata; if (!a_ByteBuffer.ReadString(Metadata, a_ByteBuffer.GetReadableSpace() - a_KeepRemainingBytes - 1) || (Metadata.size() == 0) || (Metadata[0] == 0)) { // No metadata return true; } ParseItemMetadata(a_Item, Metadata); return true; } void cProtocol_1_9_0::ParseItemMetadata(cItem & a_Item, const AString & a_Metadata) { // Parse into NBT: cParsedNBT NBT(a_Metadata.data(), a_Metadata.size()); if (!NBT.IsValid()) { AString HexDump; CreateHexDump(HexDump, a_Metadata.data(), std::max(a_Metadata.size(), 1024), 16); LOGWARNING("Cannot parse NBT item metadata: %s at (" SIZE_T_FMT " / " SIZE_T_FMT " bytes)\n%s", NBT.GetErrorCode().message().c_str(), NBT.GetErrorPos(), a_Metadata.size(), HexDump.c_str() ); return; } // Load enchantments and custom display names from the NBT data: for (int tag = NBT.GetFirstChild(NBT.GetRoot()); tag >= 0; tag = NBT.GetNextSibling(tag)) { AString TagName = NBT.GetName(tag); switch (NBT.GetType(tag)) { case TAG_List: { if ((TagName == "ench") || (TagName == "StoredEnchantments")) // Enchantments tags { EnchantmentSerializer::ParseFromNBT(a_Item.m_Enchantments, NBT, tag); } break; } case TAG_Compound: { if (TagName == "display") // Custom name and lore tag { for (int displaytag = NBT.GetFirstChild(tag); displaytag >= 0; displaytag = NBT.GetNextSibling(displaytag)) { if ((NBT.GetType(displaytag) == TAG_String) && (NBT.GetName(displaytag) == "Name")) // Custon name tag { a_Item.m_CustomName = NBT.GetString(displaytag); } else if ((NBT.GetType(displaytag) == TAG_List) && (NBT.GetName(displaytag) == "Lore")) // Lore tag { a_Item.m_LoreTable.clear(); for (int loretag = NBT.GetFirstChild(displaytag); loretag >= 0; loretag = NBT.GetNextSibling(loretag)) // Loop through array of strings { a_Item.m_LoreTable.push_back(NBT.GetString(loretag)); } } else if ((NBT.GetType(displaytag) == TAG_Int) && (NBT.GetName(displaytag) == "color")) { a_Item.m_ItemColor.m_Color = static_cast(NBT.GetInt(displaytag)); } } } else if ((TagName == "Fireworks") || (TagName == "Explosion")) { cFireworkItem::ParseFromNBT(a_Item.m_FireworkItem, NBT, tag, static_cast(a_Item.m_ItemType)); } else if (TagName == "EntityTag") { for (int entitytag = NBT.GetFirstChild(tag); entitytag >= 0; entitytag = NBT.GetNextSibling(entitytag)) { if ((NBT.GetType(entitytag) == TAG_String) && (NBT.GetName(entitytag) == "id")) { AString NBTName = NBT.GetString(entitytag); ReplaceString(NBTName, "minecraft:", ""); eMonsterType MonsterType = cMonster::StringToMobType(NBTName); a_Item.m_ItemDamage = static_cast(MonsterType); } } } break; } case TAG_Int: { if (TagName == "RepairCost") { a_Item.m_RepairCost = NBT.GetInt(tag); } break; } case TAG_String: { if (TagName == "Potion") { AString PotionEffect = NBT.GetString(tag); if (PotionEffect.find("minecraft:") == AString::npos) { LOGD("Unknown or missing domain on potion effect name %s!", PotionEffect.c_str()); continue; } if (PotionEffect.find("water") != AString::npos) { a_Item.m_ItemDamage = 0; // Water bottles shouldn't have other bits set on them; exit early. continue; } if (PotionEffect.find("empty") != AString::npos) { a_Item.m_ItemDamage = 0; } else if (PotionEffect.find("mundane") != AString::npos) { a_Item.m_ItemDamage = 0; } else if (PotionEffect.find("thick") != AString::npos) { a_Item.m_ItemDamage = 20; } else if (PotionEffect.find("awkward") != AString::npos) { a_Item.m_ItemDamage = 10; } else if (PotionEffect.find("regeneration") != AString::npos) { a_Item.m_ItemDamage = 1; } else if (PotionEffect.find("swiftness") != AString::npos) { a_Item.m_ItemDamage = 2; } else if (PotionEffect.find("fire_resistance") != AString::npos) { a_Item.m_ItemDamage = 3; } else if (PotionEffect.find("poison") != AString::npos) { a_Item.m_ItemDamage = 4; } else if (PotionEffect.find("healing") != AString::npos) { a_Item.m_ItemDamage = 5; } else if (PotionEffect.find("night_vision") != AString::npos) { a_Item.m_ItemDamage = 6; } else if (PotionEffect.find("weakness") != AString::npos) { a_Item.m_ItemDamage = 8; } else if (PotionEffect.find("strength") != AString::npos) { a_Item.m_ItemDamage = 9; } else if (PotionEffect.find("slowness") != AString::npos) { a_Item.m_ItemDamage = 10; } else if (PotionEffect.find("leaping") != AString::npos) { a_Item.m_ItemDamage = 11; } else if (PotionEffect.find("harming") != AString::npos) { a_Item.m_ItemDamage = 12; } else if (PotionEffect.find("water_breathing") != AString::npos) { a_Item.m_ItemDamage = 13; } else if (PotionEffect.find("invisibility") != AString::npos) { a_Item.m_ItemDamage = 14; } else { // Note: luck potions are not handled and will reach this location LOGD("Unknown potion type for effect name %s!", PotionEffect.c_str()); continue; } if (PotionEffect.find("strong") != AString::npos) { a_Item.m_ItemDamage |= 0x20; } if (PotionEffect.find("long") != AString::npos) { a_Item.m_ItemDamage |= 0x40; } // Ugly special case with the changed splash potion ID in 1.9 if ((a_Item.m_ItemType == 438) || (a_Item.m_ItemType == 441)) { // Splash or lingering potions - change the ID to the normal one and mark as splash potions a_Item.m_ItemType = E_ITEM_POTION; a_Item.m_ItemDamage |= 0x4000; // Is splash potion } else { a_Item.m_ItemDamage |= 0x2000; // Is drinkable } } break; } default: LOGD("Unimplemented NBT data when parsing!"); break; } } } void cProtocol_1_9_0::StartEncryption(const Byte * a_Key) { m_Encryptor.Init(a_Key, a_Key); m_Decryptor.Init(a_Key, a_Key); m_IsEncrypted = true; // Prepare the m_AuthServerID: cSha1Checksum Checksum; cServer * Server = cRoot::Get()->GetServer(); const AString & ServerID = Server->GetServerID(); Checksum.Update(reinterpret_cast(ServerID.c_str()), ServerID.length()); Checksum.Update(a_Key, 16); Checksum.Update(reinterpret_cast(Server->GetPublicKeyDER().data()), Server->GetPublicKeyDER().size()); Byte Digest[20]; Checksum.Finalize(Digest); cSha1Checksum::DigestToJava(Digest, m_AuthServerID); } eBlockFace cProtocol_1_9_0::FaceIntToBlockFace(Int32 a_BlockFace) { // Normalize the blockface values returned from the protocol // Anything known gets mapped 1:1, everything else returns BLOCK_FACE_NONE switch (a_BlockFace) { case BLOCK_FACE_XM: return BLOCK_FACE_XM; case BLOCK_FACE_XP: return BLOCK_FACE_XP; case BLOCK_FACE_YM: return BLOCK_FACE_YM; case BLOCK_FACE_YP: return BLOCK_FACE_YP; case BLOCK_FACE_ZM: return BLOCK_FACE_ZM; case BLOCK_FACE_ZP: return BLOCK_FACE_ZP; default: return BLOCK_FACE_NONE; } } //////////////////////////////////////////////////////////////////////////////// // cProtocol_1_9_0::cPacketizer: void cProtocol_1_9_0::SendPacket(cPacketizer & a_Pkt) { UInt32 PacketLen = static_cast(m_OutPacketBuffer.GetUsedSpace()); AString PacketData, CompressedPacket; m_OutPacketBuffer.ReadAll(PacketData); m_OutPacketBuffer.CommitRead(); if ((m_State == 3) && (PacketLen >= 256)) { // Compress the packet payload: if (!cProtocol_1_9_0::CompressPacket(PacketData, CompressedPacket)) { return; } } else if (m_State == 3) { // The packet is not compressed, indicate this in the packet header: m_OutPacketLenBuffer.WriteVarInt32(PacketLen + 1); m_OutPacketLenBuffer.WriteVarInt32(0); AString LengthData; m_OutPacketLenBuffer.ReadAll(LengthData); SendData(LengthData.data(), LengthData.size()); } else { // Compression doesn't apply to this state, send raw data: m_OutPacketLenBuffer.WriteVarInt32(PacketLen); AString LengthData; m_OutPacketLenBuffer.ReadAll(LengthData); SendData(LengthData.data(), LengthData.size()); } // Send the packet's payload, either direct or compressed: if (CompressedPacket.empty()) { m_OutPacketLenBuffer.CommitRead(); SendData(PacketData.data(), PacketData.size()); } else { SendData(CompressedPacket.data(), CompressedPacket.size()); } // Log the comm into logfile: if (g_ShouldLogCommOut && m_CommLogFile.IsOpen()) { AString Hex; ASSERT(PacketData.size() > 0); CreateHexDump(Hex, PacketData.data(), PacketData.size(), 16); m_CommLogFile.Printf("Outgoing packet: type %d (0x%x), length %u (0x%x), state %d. Payload (incl. type):\n%s\n", a_Pkt.GetPacketType(), a_Pkt.GetPacketType(), PacketLen, PacketLen, m_State, Hex.c_str() ); } } void cProtocol_1_9_0::WriteItem(cPacketizer & a_Pkt, const cItem & a_Item) { short ItemType = a_Item.m_ItemType; ASSERT(ItemType >= -1); // Check validity of packets in debug runtime if (ItemType <= 0) { // Fix, to make sure no invalid values are sent. ItemType = -1; } if (a_Item.IsEmpty()) { a_Pkt.WriteBEInt16(-1); return; } if ((ItemType == E_ITEM_POTION) && ((a_Item.m_ItemDamage & 0x4000) != 0)) { // Ugly special case for splash potion ids which changed in 1.9; this can be removed when the new 1.9 ids are implemented a_Pkt.WriteBEInt16(438); // minecraft:splash_potion } else { // Normal item a_Pkt.WriteBEInt16(ItemType); } a_Pkt.WriteBEInt8(a_Item.m_ItemCount); if ((ItemType == E_ITEM_POTION) || (ItemType == E_ITEM_SPAWN_EGG)) { // These items lost their metadata; if it is sent they don't render correctly. a_Pkt.WriteBEInt16(0); } else { a_Pkt.WriteBEInt16(a_Item.m_ItemDamage); } if ( a_Item.m_Enchantments.IsEmpty() && a_Item.IsBothNameAndLoreEmpty() && (ItemType != E_ITEM_FIREWORK_ROCKET) && (ItemType != E_ITEM_FIREWORK_STAR) && !a_Item.m_ItemColor.IsValid() && (ItemType != E_ITEM_POTION) && (ItemType != E_ITEM_SPAWN_EGG) && (ItemType != E_ITEM_WRITTEN_BOOK) && (ItemType != E_ITEM_BOOK_AND_QUILL)) { a_Pkt.WriteBEInt8(0); return; } if ((ItemType == E_ITEM_BOOK_AND_QUILL) && (a_Item.m_BookContent.GetPages().size() == 0)) { // Don't send any nbt tag if the book is writeable and has no pages // If a tag with a empty pages list is send, the player can't enter anything a_Pkt.WriteBEInt8(0); return; } // Send the enchantments and custom names: cFastNBTWriter Writer; if (a_Item.m_RepairCost != 0) { Writer.AddInt("RepairCost", a_Item.m_RepairCost); } if (!a_Item.m_Enchantments.IsEmpty()) { const char * TagName = (a_Item.m_ItemType == E_ITEM_BOOK) ? "StoredEnchantments" : "ench"; EnchantmentSerializer::WriteToNBTCompound(a_Item.m_Enchantments, Writer, TagName); } if (!a_Item.IsBothNameAndLoreEmpty() || a_Item.m_ItemColor.IsValid()) { Writer.BeginCompound("display"); if (a_Item.m_ItemColor.IsValid()) { Writer.AddInt("color", static_cast(a_Item.m_ItemColor.m_Color)); } if (!a_Item.IsCustomNameEmpty()) { Writer.AddString("Name", a_Item.m_CustomName.c_str()); } if (!a_Item.IsLoreEmpty()) { Writer.BeginList("Lore", TAG_String); for (const auto & Line : a_Item.m_LoreTable) { Writer.AddString("", Line); } Writer.EndList(); } Writer.EndCompound(); } if ((a_Item.m_ItemType == E_ITEM_FIREWORK_ROCKET) || (a_Item.m_ItemType == E_ITEM_FIREWORK_STAR)) { cFireworkItem::WriteToNBTCompound(a_Item.m_FireworkItem, Writer, static_cast(a_Item.m_ItemType)); } if (a_Item.m_ItemType == E_ITEM_POTION) { // 1.9 potions use a different format. In the future (when only 1.9+ is supported) this should be its own class AString PotionID = "empty"; // Fallback of "Uncraftable potion" for unhandled cases cEntityEffect::eType Type = cEntityEffect::GetPotionEffectType(a_Item.m_ItemDamage); if (Type != cEntityEffect::effNoEffect) { switch (Type) { case cEntityEffect::effRegeneration: PotionID = "regeneration"; break; case cEntityEffect::effSpeed: PotionID = "swiftness"; break; case cEntityEffect::effFireResistance: PotionID = "fire_resistance"; break; case cEntityEffect::effPoison: PotionID = "poison"; break; case cEntityEffect::effInstantHealth: PotionID = "healing"; break; case cEntityEffect::effNightVision: PotionID = "night_vision"; break; case cEntityEffect::effWeakness: PotionID = "weakness"; break; case cEntityEffect::effStrength: PotionID = "strength"; break; case cEntityEffect::effSlowness: PotionID = "slowness"; break; case cEntityEffect::effJumpBoost: PotionID = "leaping"; break; case cEntityEffect::effInstantDamage: PotionID = "harming"; break; case cEntityEffect::effWaterBreathing: PotionID = "water_breathing"; break; case cEntityEffect::effInvisibility: PotionID = "invisibility"; break; } if (cEntityEffect::GetPotionEffectIntensity(a_Item.m_ItemDamage) == 1) { PotionID = "strong_" + PotionID; } else if (a_Item.m_ItemDamage & 0x40) { // Extended potion bit PotionID = "long_" + PotionID; } } else { // Empty potions: Water bottles and other base ones if (a_Item.m_ItemDamage == 0) { // No other bits set; thus it's a water bottle PotionID = "water"; } else { switch (a_Item.m_ItemDamage & 0x3f) { case 0x00: PotionID = "mundane"; break; case 0x10: PotionID = "awkward"; break; case 0x20: PotionID = "thick"; break; } // Default cases will use "empty" from before. } } PotionID = "minecraft:" + PotionID; Writer.AddString("Potion", PotionID.c_str()); } if (a_Item.m_ItemType == E_ITEM_SPAWN_EGG) { // Convert entity ID to the name. eMonsterType MonsterType = cItemSpawnEggHandler::ItemDamageToMonsterType(a_Item.m_ItemDamage); if (MonsterType != eMonsterType::mtInvalidType) { Writer.BeginCompound("EntityTag"); Writer.AddString("id", "minecraft:" + cMonster::MobTypeToVanillaNBT(MonsterType)); Writer.EndCompound(); } } if ((a_Item.m_ItemType == E_ITEM_WRITTEN_BOOK) || (a_Item.m_ItemType == E_ITEM_BOOK_AND_QUILL)) { if (a_Item.m_ItemType == E_ITEM_WRITTEN_BOOK) { // Only send author and title for a signed book Writer.AddString("author", a_Item.m_BookContent.GetAuthor()); Writer.AddString("title", a_Item.m_BookContent.GetTitle()); } if (a_Item.m_BookContent.GetPages().size() > 0) { Writer.BeginList("pages", TAG_String); for (auto & Page : a_Item.m_BookContent.GetPages()) { Writer.AddString("", Page); } Writer.EndList(); } else { // A signed book, has a empty page Writer.BeginList("pages", TAG_String); Writer.AddString("", ""); Writer.EndList(); } } Writer.Finish(); AString Result = Writer.GetResult(); if (Result.size() == 0) { a_Pkt.WriteBEInt8(0); return; } a_Pkt.WriteBuf(Result.data(), Result.size()); } void cProtocol_1_9_0::WriteBlockEntity(cPacketizer & a_Pkt, const cBlockEntity & a_BlockEntity) { cFastNBTWriter Writer; switch (a_BlockEntity.GetBlockType()) { case E_BLOCK_BEACON: { auto & BeaconEntity = reinterpret_cast(a_BlockEntity); Writer.AddInt("x", BeaconEntity.GetPosX()); Writer.AddInt("y", BeaconEntity.GetPosY()); Writer.AddInt("z", BeaconEntity.GetPosZ()); Writer.AddInt("Primary", BeaconEntity.GetPrimaryEffect()); Writer.AddInt("Secondary", BeaconEntity.GetSecondaryEffect()); Writer.AddInt("Levels", BeaconEntity.GetBeaconLevel()); Writer.AddString("id", "Beacon"); // "Tile Entity ID" - MC wiki; vanilla server always seems to send this though break; } case E_BLOCK_COMMAND_BLOCK: { auto & CommandBlockEntity = reinterpret_cast(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()) { Writer.AddString("LastOutput", Printf("{\"text\":\"%s\"}", CommandBlockEntity.GetLastOutput().c_str())); } break; } case E_BLOCK_HEAD: { auto & MobHeadEntity = reinterpret_cast(a_BlockEntity); Writer.AddInt("x", MobHeadEntity.GetPosX()); Writer.AddInt("y", MobHeadEntity.GetPosY()); Writer.AddInt("z", MobHeadEntity.GetPosZ()); Writer.AddByte("SkullType", MobHeadEntity.GetType() & 0xFF); Writer.AddByte("Rot", MobHeadEntity.GetRotation() & 0xFF); Writer.AddString("id", "Skull"); // "Tile Entity ID" - MC wiki; vanilla server always seems to send this though // The new Block Entity format for a Mob Head. See: https://minecraft.gamepedia.com/Head#Block_entity Writer.BeginCompound("Owner"); Writer.AddString("Id", MobHeadEntity.GetOwnerUUID().ToShortString()); Writer.AddString("Name", MobHeadEntity.GetOwnerName()); Writer.BeginCompound("Properties"); Writer.BeginList("textures", TAG_Compound); Writer.BeginCompound(""); Writer.AddString("Signature", MobHeadEntity.GetOwnerTextureSignature()); Writer.AddString("Value", MobHeadEntity.GetOwnerTexture()); Writer.EndCompound(); Writer.EndList(); Writer.EndCompound(); Writer.EndCompound(); break; } case E_BLOCK_FLOWER_POT: { auto & FlowerPotEntity = reinterpret_cast(a_BlockEntity); Writer.AddInt("x", FlowerPotEntity.GetPosX()); Writer.AddInt("y", FlowerPotEntity.GetPosY()); Writer.AddInt("z", FlowerPotEntity.GetPosZ()); Writer.AddInt("Item", static_cast(FlowerPotEntity.GetItem().m_ItemType)); Writer.AddInt("Data", static_cast(FlowerPotEntity.GetItem().m_ItemDamage)); Writer.AddString("id", "FlowerPot"); // "Tile Entity ID" - MC wiki; vanilla server always seems to send this though break; } case E_BLOCK_MOB_SPAWNER: { auto & MobSpawnerEntity = reinterpret_cast(a_BlockEntity); Writer.AddInt("x", MobSpawnerEntity.GetPosX()); Writer.AddInt("y", MobSpawnerEntity.GetPosY()); Writer.AddInt("z", MobSpawnerEntity.GetPosZ()); Writer.BeginCompound("SpawnData"); Writer.AddString("id", cMonster::MobTypeToVanillaName(MobSpawnerEntity.GetEntity())); Writer.EndCompound(); Writer.AddShort("Delay", MobSpawnerEntity.GetSpawnDelay()); Writer.AddString("id", "MobSpawner"); break; } default: { break; } } Writer.Finish(); a_Pkt.WriteBuf(Writer.GetResult().data(), Writer.GetResult().size()); } void cProtocol_1_9_0::WriteEntityMetadata(cPacketizer & a_Pkt, const cEntity & a_Entity) { // Common metadata: Int8 Flags = 0; if (a_Entity.IsOnFire()) { Flags |= 0x01; } if (a_Entity.IsCrouched()) { Flags |= 0x02; } if (a_Entity.IsSprinting()) { Flags |= 0x08; } if (a_Entity.IsRclking()) { Flags |= 0x10; } if (a_Entity.IsInvisible()) { Flags |= 0x20; } a_Pkt.WriteBEUInt8(0); // Index 0 a_Pkt.WriteBEUInt8(METADATA_TYPE_BYTE); // Type a_Pkt.WriteBEInt8(Flags); switch (a_Entity.GetEntityType()) { case cEntity::etPlayer: { auto & Player = reinterpret_cast(a_Entity); // TODO Set player custom name to their name. // Then it's possible to move the custom name of mobs to the entities // and to remove the "special" player custom name. a_Pkt.WriteBEUInt8(2); // Index 2: Custom name a_Pkt.WriteBEUInt8(METADATA_TYPE_STRING); a_Pkt.WriteString(Player.GetName()); a_Pkt.WriteBEUInt8(6); // Index 6: Health a_Pkt.WriteBEUInt8(METADATA_TYPE_FLOAT); a_Pkt.WriteBEFloat(static_cast(Player.GetHealth())); a_Pkt.WriteBEUInt8(12); a_Pkt.WriteBEUInt8(METADATA_TYPE_BYTE); a_Pkt.WriteBEUInt8(static_cast(Player.GetSkinParts())); a_Pkt.WriteBEUInt8(13); a_Pkt.WriteBEUInt8(METADATA_TYPE_BYTE); a_Pkt.WriteBEUInt8(static_cast(Player.GetMainHand())); break; } case cEntity::etPickup: { a_Pkt.WriteBEUInt8(5); // Index 5: Item a_Pkt.WriteBEUInt8(METADATA_TYPE_ITEM); WriteItem(a_Pkt, reinterpret_cast(a_Entity).GetItem()); break; } case cEntity::etMinecart: { a_Pkt.WriteBEUInt8(5); // Index 5: Shaking power a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT); // The following expression makes Minecarts shake more with less health or higher damage taken auto & Minecart = reinterpret_cast(a_Entity); auto maxHealth = a_Entity.GetMaxHealth(); auto curHealth = a_Entity.GetHealth(); a_Pkt.WriteVarInt32(static_cast((maxHealth - curHealth) * Minecart.LastDamage() * 4)); a_Pkt.WriteBEUInt8(6); // Index 6: Shaking direction (doesn't seem to effect anything) a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT); a_Pkt.WriteVarInt32(1); a_Pkt.WriteBEUInt8(7); // Index 7: Shake multiplier / damage taken a_Pkt.WriteBEUInt8(METADATA_TYPE_FLOAT); a_Pkt.WriteBEFloat(static_cast(Minecart.LastDamage() + 10)); if (Minecart.GetPayload() == cMinecart::mpNone) { auto & RideableMinecart = reinterpret_cast(Minecart); const cItem & MinecartContent = RideableMinecart.GetContent(); if (!MinecartContent.IsEmpty()) { a_Pkt.WriteBEUInt8(8); // Index 8: Block ID and damage a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT); int Content = MinecartContent.m_ItemType; Content |= MinecartContent.m_ItemDamage << 8; a_Pkt.WriteVarInt32(static_cast(Content)); a_Pkt.WriteBEUInt8(9); // Index 9: Block ID and damage a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT); a_Pkt.WriteVarInt32(static_cast(RideableMinecart.GetBlockHeight())); a_Pkt.WriteBEUInt8(10); // Index 10: Show block a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(true); } } else if (Minecart.GetPayload() == cMinecart::mpFurnace) { a_Pkt.WriteBEUInt8(11); // Index 11: Is powered a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(reinterpret_cast(Minecart).IsFueled()); } break; } // case etMinecart case cEntity::etProjectile: { auto & Projectile = reinterpret_cast(a_Entity); switch (Projectile.GetProjectileKind()) { case cProjectileEntity::pkArrow: { a_Pkt.WriteBEUInt8(5); // Index 5: Is critical a_Pkt.WriteBEUInt8(METADATA_TYPE_BYTE); a_Pkt.WriteBEInt8(reinterpret_cast(Projectile).IsCritical() ? 1 : 0); break; } case cProjectileEntity::pkFirework: { a_Pkt.WriteBEUInt8(5); // Index 5: Firework item used for this firework a_Pkt.WriteBEUInt8(METADATA_TYPE_ITEM); WriteItem(a_Pkt, reinterpret_cast(Projectile).GetItem()); break; } case cProjectileEntity::pkSplashPotion: { a_Pkt.WriteBEUInt8(5); // Index 5: Potion item which was thrown a_Pkt.WriteBEUInt8(METADATA_TYPE_ITEM); WriteItem(a_Pkt, reinterpret_cast(Projectile).GetItem()); } default: { break; } } break; } // case etProjectile case cEntity::etMonster: { WriteMobMetadata(a_Pkt, reinterpret_cast(a_Entity)); break; } case cEntity::etBoat: { auto & Boat = reinterpret_cast(a_Entity); a_Pkt.WriteBEInt8(5); // Index 6: Time since last hit a_Pkt.WriteBEInt8(METADATA_TYPE_VARINT); a_Pkt.WriteVarInt32(static_cast(Boat.GetLastDamage())); a_Pkt.WriteBEInt8(6); // Index 7: Forward direction a_Pkt.WriteBEInt8(METADATA_TYPE_VARINT); a_Pkt.WriteVarInt32(static_cast(Boat.GetForwardDirection())); a_Pkt.WriteBEInt8(7); // Index 8: Damage taken a_Pkt.WriteBEInt8(METADATA_TYPE_FLOAT); a_Pkt.WriteBEFloat(Boat.GetDamageTaken()); a_Pkt.WriteBEInt8(8); // Index 9: Type a_Pkt.WriteBEInt8(METADATA_TYPE_VARINT); a_Pkt.WriteVarInt32(static_cast(Boat.GetMaterial())); a_Pkt.WriteBEInt8(9); // Index 10: Right paddle turning a_Pkt.WriteBEInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Boat.IsRightPaddleUsed()); a_Pkt.WriteBEInt8(10); // Index 11: Left paddle turning a_Pkt.WriteBEInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Boat.IsLeftPaddleUsed()); break; } // case etBoat case cEntity::etItemFrame: { auto & Frame = reinterpret_cast(a_Entity); a_Pkt.WriteBEUInt8(5); // Index 5: Item a_Pkt.WriteBEUInt8(METADATA_TYPE_ITEM); WriteItem(a_Pkt, Frame.GetItem()); a_Pkt.WriteBEUInt8(6); // Index 6: Rotation a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT); a_Pkt.WriteVarInt32(Frame.GetItemRotation()); break; } // case etItemFrame default: { break; } } } void cProtocol_1_9_0::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_Mob) { // Living Enitiy Metadata if (a_Mob.HasCustomName()) { // TODO: As of 1.9 _all_ entities can have custom names; should this be moved up? a_Pkt.WriteBEUInt8(2); // Index 2: Custom name a_Pkt.WriteBEUInt8(METADATA_TYPE_STRING); a_Pkt.WriteString(a_Mob.GetCustomName()); a_Pkt.WriteBEUInt8(3); // Index 3: Custom name always visible a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(a_Mob.IsCustomNameAlwaysVisible()); } a_Pkt.WriteBEUInt8(6); // Index 6: Health a_Pkt.WriteBEUInt8(METADATA_TYPE_FLOAT); a_Pkt.WriteBEFloat(static_cast(a_Mob.GetHealth())); switch (a_Mob.GetMobType()) { case mtBat: { auto & Bat = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(11); // Index 11: Bat flags - currently only hanging a_Pkt.WriteBEUInt8(METADATA_TYPE_BYTE); a_Pkt.WriteBEInt8(Bat.IsHanging() ? 1 : 0); break; } // case mtBat case mtCreeper: { auto & Creeper = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(11); // Index 11: State (idle or "blowing") a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT); a_Pkt.WriteVarInt32(Creeper.IsBlowing() ? 1 : 0xffffffff); a_Pkt.WriteBEUInt8(12); // Index 12: Is charged a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Creeper.IsCharged()); a_Pkt.WriteBEUInt8(13); // Index 13: Is ignited a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Creeper.IsBurnedWithFlintAndSteel()); break; } // case mtCreeper case mtEnderman: { auto & Enderman = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(11); // Index 11: Carried block a_Pkt.WriteBEUInt8(METADATA_TYPE_BLOCKID); UInt32 Carried = 0; Carried |= static_cast(Enderman.GetCarriedBlock() << 4); Carried |= Enderman.GetCarriedMeta(); a_Pkt.WriteVarInt32(Carried); a_Pkt.WriteBEUInt8(12); // Index 12: Is screaming a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Enderman.IsScreaming()); break; } // case mtEnderman case mtGhast: { auto & Ghast = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(11); // Is attacking a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Ghast.IsCharging()); break; } // case mtGhast case mtHorse: { auto & Horse = reinterpret_cast(a_Mob); Int8 Flags = 0; if (Horse.IsTame()) { Flags |= 0x02; } if (Horse.IsSaddled()) { Flags |= 0x04; } if (Horse.IsChested()) { Flags |= 0x08; } if (Horse.IsEating()) { Flags |= 0x20; } if (Horse.IsRearing()) { Flags |= 0x40; } if (Horse.IsMthOpen()) { Flags |= 0x80; } a_Pkt.WriteBEUInt8(12); // Index 12: flags a_Pkt.WriteBEUInt8(METADATA_TYPE_BYTE); a_Pkt.WriteBEInt8(Flags); a_Pkt.WriteBEUInt8(13); // Index 13: Variant / type a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT); a_Pkt.WriteVarInt32(static_cast(Horse.GetHorseType())); a_Pkt.WriteBEUInt8(14); // Index 14: Color / style a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT); int Appearance = 0; Appearance = Horse.GetHorseColor(); Appearance |= Horse.GetHorseStyle() << 8; a_Pkt.WriteVarInt32(static_cast(Appearance)); a_Pkt.WriteBEUInt8(16); // Index 16: Armor a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT); a_Pkt.WriteVarInt32(static_cast(Horse.GetHorseArmour())); a_Pkt.WriteBEUInt8(11); // Index 11: Is baby a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Horse.IsBaby()); break; } // case mtHorse case mtMagmaCube: { auto & MagmaCube = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(11); // Index 11: Size a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT); a_Pkt.WriteVarInt32(static_cast(MagmaCube.GetSize())); break; } // case mtMagmaCube case mtOcelot: { auto & Ocelot = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(11); // Index 11: Is baby a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Ocelot.IsBaby()); break; } // case mtOcelot case mtCow: { auto & Cow = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(11); // Index 11: Is baby a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Cow.IsBaby()); break; } // case mtCow case mtChicken: { auto & Chicken = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(11); // Index 11: Is baby a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Chicken.IsBaby()); break; } // case mtChicken case mtPig: { auto & Pig = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(11); // Index 11: Is baby a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Pig.IsBaby()); a_Pkt.WriteBEUInt8(12); // Index 12: Is saddled a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Pig.IsSaddled()); break; } // case mtPig case mtSheep: { auto & Sheep = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(11); // Index 11: Is baby a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Sheep.IsBaby()); a_Pkt.WriteBEUInt8(12); // Index 12: sheared, color a_Pkt.WriteBEUInt8(METADATA_TYPE_BYTE); Int8 SheepMetadata = 0; SheepMetadata = static_cast(Sheep.GetFurColor()); if (Sheep.IsSheared()) { SheepMetadata |= 0x10; } a_Pkt.WriteBEInt8(SheepMetadata); break; } // case mtSheep case mtRabbit: { auto & Rabbit = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(11); // Index 11: Is baby a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Rabbit.IsBaby()); a_Pkt.WriteBEUInt8(12); // Index 12: Type a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT); a_Pkt.WriteVarInt32(static_cast(Rabbit.GetRabbitType())); break; } // case mtRabbit case mtSkeleton: { auto & Skeleton = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(11); // Index 11: Type a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT); a_Pkt.WriteVarInt32(Skeleton.IsWither() ? 1 : 0); break; } // case mtSkeleton case mtSlime: { auto & Slime = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(11); // Index 11: Size a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT); a_Pkt.WriteVarInt32(static_cast(Slime.GetSize())); break; } // case mtSlime case mtVillager: { auto & Villager = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(11); // Index 11: Is baby a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Villager.IsBaby()); a_Pkt.WriteBEUInt8(12); // Index 12: Type a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT); a_Pkt.WriteVarInt32(static_cast(Villager.GetVilType())); break; } // case mtVillager case mtWitch: { auto & Witch = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(11); // Index 11: Is angry a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Witch.IsAngry()); break; } // case mtWitch case mtWither: { auto & Wither = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(14); // Index 14: Invulnerable ticks a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT); a_Pkt.WriteVarInt32(Wither.GetWitherInvulnerableTicks()); // TODO: Use boss bar packet for health break; } // case mtWither case mtWolf: { auto & Wolf = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(11); // Index 11: Is baby a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Wolf.IsBaby()); Int8 WolfStatus = 0; if (Wolf.IsSitting()) { WolfStatus |= 0x1; } if (Wolf.IsAngry()) { WolfStatus |= 0x2; } if (Wolf.IsTame()) { WolfStatus |= 0x4; } a_Pkt.WriteBEUInt8(12); // Index 12: status a_Pkt.WriteBEUInt8(METADATA_TYPE_BYTE); a_Pkt.WriteBEInt8(WolfStatus); a_Pkt.WriteBEUInt8(14); // Index 14: Health a_Pkt.WriteBEUInt8(METADATA_TYPE_FLOAT); a_Pkt.WriteBEFloat(static_cast(a_Mob.GetHealth())); a_Pkt.WriteBEUInt8(15); // Index 15: Is begging a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Wolf.IsBegging()); a_Pkt.WriteBEUInt8(16); // Index 16: Collar color a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT); a_Pkt.WriteVarInt32(static_cast(Wolf.GetCollarColor())); break; } // case mtWolf case mtZombie: { auto & Zombie = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(11); // Index 11: Is baby a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Zombie.IsBaby()); a_Pkt.WriteBEUInt8(12); // Index 12: Is a villager a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT); a_Pkt.WriteVarInt32(Zombie.IsVillagerZombie() ? 1 : 0); // TODO: This actually encodes the zombie villager profession, but that isn't implemented yet. a_Pkt.WriteBEUInt8(13); // Index 13: Is converting a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(Zombie.IsConverting()); break; } // case mtZombie case mtZombiePigman: { auto & ZombiePigman = reinterpret_cast(a_Mob); a_Pkt.WriteBEUInt8(11); // Index 11: Is baby a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL); a_Pkt.WriteBool(ZombiePigman.IsBaby()); break; } // case mtZombiePigman } // switch (a_Mob.GetType()) } void cProtocol_1_9_0::WriteEntityProperties(cPacketizer & a_Pkt, const cEntity & a_Entity) { if (!a_Entity.IsMob()) { // No properties for anything else than mobs a_Pkt.WriteBEInt32(0); return; } // const cMonster & Mob = (const cMonster &)a_Entity; // TODO: Send properties and modifiers based on the mob type a_Pkt.WriteBEInt32(0); // NumProperties } //////////////////////////////////////////////////////////////////////////////// // cProtocol_1_9_1: cProtocol_1_9_1::cProtocol_1_9_1(cClientHandle * a_Client, const AString & a_ServerAddress, UInt16 a_ServerPort, UInt32 a_State) : super(a_Client, a_ServerAddress, a_ServerPort, a_State) { } void cProtocol_1_9_1::SendLogin(const cPlayer & a_Player, const cWorld & a_World) { // Send the Join Game packet: { cServer * Server = cRoot::Get()->GetServer(); cPacketizer Pkt(*this, 0x23); // Join Game packet Pkt.WriteBEUInt32(a_Player.GetUniqueID()); Pkt.WriteBEUInt8(static_cast(a_Player.GetEffectiveGameMode()) | (Server->IsHardcore() ? 0x08 : 0)); // Hardcore flag bit 4 Pkt.WriteBEInt32(static_cast(a_World.GetDimension())); Pkt.WriteBEUInt8(2); // TODO: Difficulty (set to Normal) Pkt.WriteBEUInt8(static_cast(Clamp(Server->GetMaxPlayers(), 0, 255))); Pkt.WriteString("default"); // Level type - wtf? Pkt.WriteBool(false); // Reduced Debug Info - wtf? } // Send the spawn position: { cPacketizer Pkt(*this, 0x43); // Spawn Position packet Pkt.WritePosition64(FloorC(a_World.GetSpawnX()), FloorC(a_World.GetSpawnY()), FloorC(a_World.GetSpawnZ())); } // Send the server difficulty: { cPacketizer Pkt(*this, 0x0d); // Server difficulty packet Pkt.WriteBEInt8(1); } // Send player abilities: SendPlayerAbilities(); } void cProtocol_1_9_1::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer) { cServer * Server = cRoot::Get()->GetServer(); AString ServerDescription = Server->GetDescription(); auto NumPlayers = static_cast(Server->GetNumPlayers()); auto MaxPlayers = static_cast(Server->GetMaxPlayers()); AString Favicon = Server->GetFaviconData(); cRoot::Get()->GetPluginManager()->CallHookServerPing(*m_Client, ServerDescription, NumPlayers, MaxPlayers, Favicon); // Version: Json::Value Version; Version["name"] = "Cuberite 1.9.1"; Version["protocol"] = 108; // Players: Json::Value Players; Players["online"] = NumPlayers; Players["max"] = MaxPlayers; // TODO: Add "sample" // Description: Json::Value Description; Description["text"] = ServerDescription.c_str(); // Create the response: Json::Value ResponseValue; ResponseValue["version"] = Version; ResponseValue["players"] = Players; ResponseValue["description"] = Description; if (!Favicon.empty()) { ResponseValue["favicon"] = Printf("data:image/png;base64,%s", Favicon.c_str()); } Json::FastWriter Writer; AString Response = Writer.write(ResponseValue); cPacketizer Pkt(*this, 0x00); // Response packet Pkt.WriteString(Response); } //////////////////////////////////////////////////////////////////////////////// // cProtocol_1_9_2: cProtocol_1_9_2::cProtocol_1_9_2(cClientHandle * a_Client, const AString & a_ServerAddress, UInt16 a_ServerPort, UInt32 a_State) : super(a_Client, a_ServerAddress, a_ServerPort, a_State) { } void cProtocol_1_9_2::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer) { cServer * Server = cRoot::Get()->GetServer(); AString ServerDescription = Server->GetDescription(); auto NumPlayers = static_cast(Server->GetNumPlayers()); auto MaxPlayers = static_cast(Server->GetMaxPlayers()); AString Favicon = Server->GetFaviconData(); cRoot::Get()->GetPluginManager()->CallHookServerPing(*m_Client, ServerDescription, NumPlayers, MaxPlayers, Favicon); // Version: Json::Value Version; Version["name"] = "Cuberite 1.9.2"; Version["protocol"] = 109; // Players: Json::Value Players; Players["online"] = NumPlayers; Players["max"] = MaxPlayers; // TODO: Add "sample" // Description: Json::Value Description; Description["text"] = ServerDescription.c_str(); // Create the response: Json::Value ResponseValue; ResponseValue["version"] = Version; ResponseValue["players"] = Players; ResponseValue["description"] = Description; if (!Favicon.empty()) { ResponseValue["favicon"] = Printf("data:image/png;base64,%s", Favicon.c_str()); } Json::FastWriter Writer; AString Response = Writer.write(ResponseValue); cPacketizer Pkt(*this, 0x00); // Response packet Pkt.WriteString(Response); } //////////////////////////////////////////////////////////////////////////////// // cProtocol_1_9_4: cProtocol_1_9_4::cProtocol_1_9_4(cClientHandle * a_Client, const AString & a_ServerAddress, UInt16 a_ServerPort, UInt32 a_State) : super(a_Client, a_ServerAddress, a_ServerPort, a_State) { } void cProtocol_1_9_4::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer) { cServer * Server = cRoot::Get()->GetServer(); AString ServerDescription = Server->GetDescription(); auto NumPlayers = static_cast(Server->GetNumPlayers()); auto MaxPlayers = static_cast(Server->GetMaxPlayers()); AString Favicon = Server->GetFaviconData(); cRoot::Get()->GetPluginManager()->CallHookServerPing(*m_Client, ServerDescription, NumPlayers, MaxPlayers, Favicon); // Version: Json::Value Version; Version["name"] = "Cuberite 1.9.4"; Version["protocol"] = 110; // Players: Json::Value Players; Players["online"] = NumPlayers; Players["max"] = MaxPlayers; // TODO: Add "sample" // Description: Json::Value Description; Description["text"] = ServerDescription.c_str(); // Create the response: Json::Value ResponseValue; ResponseValue["version"] = Version; ResponseValue["players"] = Players; ResponseValue["description"] = Description; if (!Favicon.empty()) { ResponseValue["favicon"] = Printf("data:image/png;base64,%s", Favicon.c_str()); } Json::FastWriter Writer; AString Response = Writer.write(ResponseValue); cPacketizer Pkt(*this, 0x00); // Response packet Pkt.WriteString(Response); } void cProtocol_1_9_4::SendCollectEntity(const cEntity & a_Entity, const cPlayer & a_Player, int a_Count) { UNUSED(a_Count); ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x48); // Collect Item packet Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteVarInt32(a_Player.GetUniqueID()); } void cProtocol_1_9_4::SendChunkData(int a_ChunkX, int a_ChunkZ, cChunkDataSerializer & a_Serializer) { ASSERT(m_State == 3); // In game mode? // Serialize first, before creating the Packetizer (the packetizer locks a CS) // This contains the flags and bitmasks, too const AString & ChunkData = a_Serializer.Serialize(cChunkDataSerializer::RELEASE_1_9_4, a_ChunkX, a_ChunkZ); cCSLock Lock(m_CSPacket); SendData(ChunkData.data(), ChunkData.size()); } void cProtocol_1_9_4::SendEntityEffect(const cEntity & a_Entity, int a_EffectID, int a_Amplifier, short a_Duration) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x4b); // Entity Effect packet Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteBEUInt8(static_cast(a_EffectID)); Pkt.WriteBEUInt8(static_cast(a_Amplifier)); Pkt.WriteVarInt32(static_cast(a_Duration)); Pkt.WriteBool(false); // Hide particles } void cProtocol_1_9_4::SendEntityProperties(const cEntity & a_Entity) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x4a); // Entity Properties packet Pkt.WriteVarInt32(a_Entity.GetUniqueID()); WriteEntityProperties(Pkt, a_Entity); } void cProtocol_1_9_4::SendPlayerMaxSpeed(void) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x4a); // Entity Properties cPlayer * Player = m_Client->GetPlayer(); Pkt.WriteVarInt32(Player->GetUniqueID()); Pkt.WriteBEInt32(1); // Count Pkt.WriteString("generic.movementSpeed"); // The default game speed is 0.1, multiply that value by the relative speed: Pkt.WriteBEDouble(0.1 * Player->GetNormalMaxSpeed()); if (Player->IsSprinting()) { Pkt.WriteVarInt32(1); // Modifier count Pkt.WriteBEUInt64(0x662a6b8dda3e4c1c); Pkt.WriteBEUInt64(0x881396ea6097278d); // UUID of the modifier Pkt.WriteBEDouble(Player->GetSprintingMaxSpeed() - Player->GetNormalMaxSpeed()); Pkt.WriteBEUInt8(2); } else { Pkt.WriteVarInt32(0); // Modifier count } } void cProtocol_1_9_4::SendTeleportEntity(const cEntity & a_Entity) { ASSERT(m_State == 3); // In game mode? cPacketizer Pkt(*this, 0x49); // Entity teleport packet Pkt.WriteVarInt32(a_Entity.GetUniqueID()); Pkt.WriteBEDouble(a_Entity.GetPosX()); Pkt.WriteBEDouble(a_Entity.GetPosY()); Pkt.WriteBEDouble(a_Entity.GetPosZ()); Pkt.WriteByteAngle(a_Entity.GetYaw()); Pkt.WriteByteAngle(a_Entity.GetPitch()); Pkt.WriteBool(a_Entity.IsOnGround()); } void cProtocol_1_9_4::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_State == 3); // In game mode? // 1.9.4 removed the update sign packet and now uses Update Block Entity cPacketizer Pkt(*this, 0x09); // Update tile entity packet Pkt.WritePosition64(a_BlockX, a_BlockY, a_BlockZ); Pkt.WriteBEUInt8(9); // Action 9 - update sign cFastNBTWriter Writer; Writer.AddInt("x", a_BlockX); Writer.AddInt("y", a_BlockY); Writer.AddInt("z", a_BlockZ); Writer.AddString("id", "Sign"); Json::StyledWriter JsonWriter; Json::Value Line1; Line1["text"] = a_Line1; Writer.AddString("Text1", JsonWriter.write(Line1)); Json::Value Line2; Line2["text"] = a_Line2; Writer.AddString("Text2", JsonWriter.write(Line2)); Json::Value Line3; Line3["text"] = a_Line3; Writer.AddString("Text3", JsonWriter.write(Line3)); Json::Value Line4; Line4["text"] = a_Line4; Writer.AddString("Text4", JsonWriter.write(Line4)); Writer.Finish(); Pkt.WriteBuf(Writer.GetResult().data(), Writer.GetResult().size()); }