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cuberite-2a/src/Protocol/Protocol_1_8.h

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// Protocol_1_8.h
/*
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Declares the 1.8 protocol classes:
- cProtocol_1_8_0
- release 1.8 protocol (#47)
*/
#pragma once
#include "Protocol.h"
#include "../ByteBuffer.h"
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#include "../World.h"
#include "../mbedTLS++/AesCfb128Decryptor.h"
#include "../mbedTLS++/AesCfb128Encryptor.h"
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class cProtocol_1_8_0 :
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public cProtocol
{
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typedef cProtocol super;
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public:
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cProtocol_1_8_0(cClientHandle * a_Client, const AString & a_ServerAddress, UInt16 a_ServerPort, UInt32 a_State);
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/** Called when client sends some data: */
virtual void DataReceived(const char * a_Data, size_t a_Size) override;
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/** Sending stuff to clients (alphabetically sorted): */
1.9 / 1.9.2 / 1.9.3 / 1.9.4 protocol support (#3135) * Semistable update to 15w31a I'm going through snapshots in a sequential order since it should make things easier, and since protocol version history is written. * Update to 15w34b protocol Also, fix an issue with the Entity Equipment packet from the past version. Clients are able to connect and do stuff! * Partially update to 15w35e Chunk data doesn't work, but the client joins. I'm waiting to do chunk data because chunk data has an incomplete format until 15w36d. * Add '/blk' debug command This command lets one see what block they are looking at, and makes figuring out what's supposed to be where in a highly broken chunk possible. * Fix CRLF normalization in CheckBasicStyle.lua Normally, this doesn't cause an issue, but when running from cygwin, it detects the CR as whitespace and creates thousands of violations for every single line. Lua, when run on windows, will normalize automatically, but when run via cygwin, it won't. The bug was simply that gsub was returning a replaced version, but not changing the parameter, so the replaced version was ignored. * Update to 15w40b This includes chunk serialization. Fully functional chunk serialization for 1.9. I'm not completely happy with the chunk serialization as-is (correct use of palettes would be great), but cuberite also doesn't skip sending empty chunks so this performance optimization should probably come later. The creation of a full buffer is suboptimal, but it's the easiest way to implement this code. * Write long-by-long rather than creating a buffer This is a bit faster and should be equivalent. However, the code still doesn't look too good. * Update to 15w41a protocol This includes the new set passengers packet, which works off of the ridden entity, not the rider. That means, among other things, that information about the previously ridden vehicle is needed when detaching. So a new method with that info was added. * Update to 15w45a * 15w51b protocol * Update to 1.9.0 protocol Closes #3067. There are still a few things that need to be worked out (picking up items, effects, particles, and most importantly inventory), but in general this should work. I'll make a few more changes tomorrow to get the rest of the protocol set up, along with 1.9.1/1.9.2 (which did make a few changes). Chunks, however, _are_ working, along with most other parts of the game (placing/breaking blocks). * Fix item pickup packet not working That was a silly mistake, but at least it was an easy one. * 1.9.2 protocol support * Fix version info found in server list ping Thus, the client reports that it can connect rather than saying that the server is out of date. This required creating separate classes for 1.9.1 and 1.9.2, unfortunately. * Fix build errors generated by clang These didn't happen in MSVC. * Add protocol19x.cpp and protocol19x.h to CMakeLists * Ignore warnings in protocol19x that are ignored in protocol18x * Document BLOCK_FACE and DIG_STATUS constants * Fix BLOCK_FACE links and add separate section for DIG_STATUS * Fix bat animation and object spawning The causes of both of these are explained in #3135, but the gist is that both were typos. * Implement Use Item packet This means that buckets, bows, fishing rods, and several other similar items now work when not looking at a block. * Handle DIG_STATUS_SWAP_ITEM_IN_HAND * Add support for spawn eggs and potions The items are transformed from the 1.9 version to the 1.8 version when reading and transformed back when sending. * Remove spammy potion debug logging * Fix wolf collar color metadata The wrong type was being used, causing several clientside issues (including the screen going black). * Fix 1.9 chunk sending in the nether The nether and the end don't send skylight. * Fix clang build errors * Fix water bottles becoming mundane potions This happened because the can become splash potion bit got set incorrectly. Water bottles and mundane potions are only differentiated by the fact that water bottles have a metadata of 0, so setting that bit made it a mundane potion. Also add missing break statements to the read item NBT switch, which would otherwise break items with custom names and also cause incorrect "Unimplemented NBT data when parsing!" logging. * Copy Protocol18x as Protocol19x Aditionally, method and class names have been swapped to clean up other diffs. This commit is only added to make the following diffs more readable; it doesn't make any other changes (beyond class names). * Make thrown potions use the correct appearence This was caused by potions now using metadata. * Add missing api doc for cSplashPotionEntity::GetItem * Fix compile error in SplashPotionEntity.cpp * Fix fix of cSplashPotionEntity API doc * Temporarilly disable fall damage particles These were causing issues in 1.9 due to the changed effect ID. * Properly send a kick packet when connecting with an invalid version This means that the client no longer waits on the server screen with no indication whatsoever. However, right now the server list ping isn't implemented for unknown versions, so it'll only load "Old" on the ping. I also added a GetVarIntSize method to cByteBuffer. This helps clean up part of the code here (and I think it could clean up other parts), but it may make sense for it to be moved elsewhere (or declared in a different way). * Handle server list pings from unrecognized versions This isn't the cleanest way of writing it (it feels odd to use ProtocolRecognizer to send packets, and the addition of m_InPingForUnrecognizedVersion feels like the wrong technique), but it works and I can't think of a better way (apart from creating a full separate protocol class to handle only the ping... which would be worse). * Use cPacketizer for the disconnect packet This also should fix clang build errors. * Add 1.9.3 / 1.9.4 support * Fix incorrect indentation in APIDesc
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virtual void SendAttachEntity (const cEntity & a_Entity, const cEntity & a_Vehicle) override;
virtual void SendBlockAction (int a_BlockX, int a_BlockY, int a_BlockZ, char a_Byte1, char a_Byte2, BLOCKTYPE a_BlockType) override;
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virtual void SendBlockBreakAnim (UInt32 a_EntityID, int a_BlockX, int a_BlockY, int a_BlockZ, char a_Stage) override;
virtual void SendBlockChange (int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) override;
virtual void SendBlockChanges (int a_ChunkX, int a_ChunkZ, const sSetBlockVector & a_Changes) override;
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virtual void SendCameraSetTo (const cEntity & a_Entity) override;
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virtual void SendChat (const AString & a_Message, eChatType a_Type) override;
virtual void SendChat (const cCompositeChat & a_Message, eChatType a_Type, bool a_ShouldUseChatPrefixes) override;
virtual void SendChatRaw (const AString & a_MessageRaw, eChatType a_Type) override;
virtual void SendChunkData (int a_ChunkX, int a_ChunkZ, cChunkDataSerializer & a_Serializer) override;
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virtual void SendCollectEntity (const cEntity & a_Entity, const cPlayer & a_Player, int a_Count) override;
virtual void SendDestroyEntity (const cEntity & a_Entity) override;
1.9 / 1.9.2 / 1.9.3 / 1.9.4 protocol support (#3135) * Semistable update to 15w31a I'm going through snapshots in a sequential order since it should make things easier, and since protocol version history is written. * Update to 15w34b protocol Also, fix an issue with the Entity Equipment packet from the past version. Clients are able to connect and do stuff! * Partially update to 15w35e Chunk data doesn't work, but the client joins. I'm waiting to do chunk data because chunk data has an incomplete format until 15w36d. * Add '/blk' debug command This command lets one see what block they are looking at, and makes figuring out what's supposed to be where in a highly broken chunk possible. * Fix CRLF normalization in CheckBasicStyle.lua Normally, this doesn't cause an issue, but when running from cygwin, it detects the CR as whitespace and creates thousands of violations for every single line. Lua, when run on windows, will normalize automatically, but when run via cygwin, it won't. The bug was simply that gsub was returning a replaced version, but not changing the parameter, so the replaced version was ignored. * Update to 15w40b This includes chunk serialization. Fully functional chunk serialization for 1.9. I'm not completely happy with the chunk serialization as-is (correct use of palettes would be great), but cuberite also doesn't skip sending empty chunks so this performance optimization should probably come later. The creation of a full buffer is suboptimal, but it's the easiest way to implement this code. * Write long-by-long rather than creating a buffer This is a bit faster and should be equivalent. However, the code still doesn't look too good. * Update to 15w41a protocol This includes the new set passengers packet, which works off of the ridden entity, not the rider. That means, among other things, that information about the previously ridden vehicle is needed when detaching. So a new method with that info was added. * Update to 15w45a * 15w51b protocol * Update to 1.9.0 protocol Closes #3067. There are still a few things that need to be worked out (picking up items, effects, particles, and most importantly inventory), but in general this should work. I'll make a few more changes tomorrow to get the rest of the protocol set up, along with 1.9.1/1.9.2 (which did make a few changes). Chunks, however, _are_ working, along with most other parts of the game (placing/breaking blocks). * Fix item pickup packet not working That was a silly mistake, but at least it was an easy one. * 1.9.2 protocol support * Fix version info found in server list ping Thus, the client reports that it can connect rather than saying that the server is out of date. This required creating separate classes for 1.9.1 and 1.9.2, unfortunately. * Fix build errors generated by clang These didn't happen in MSVC. * Add protocol19x.cpp and protocol19x.h to CMakeLists * Ignore warnings in protocol19x that are ignored in protocol18x * Document BLOCK_FACE and DIG_STATUS constants * Fix BLOCK_FACE links and add separate section for DIG_STATUS * Fix bat animation and object spawning The causes of both of these are explained in #3135, but the gist is that both were typos. * Implement Use Item packet This means that buckets, bows, fishing rods, and several other similar items now work when not looking at a block. * Handle DIG_STATUS_SWAP_ITEM_IN_HAND * Add support for spawn eggs and potions The items are transformed from the 1.9 version to the 1.8 version when reading and transformed back when sending. * Remove spammy potion debug logging * Fix wolf collar color metadata The wrong type was being used, causing several clientside issues (including the screen going black). * Fix 1.9 chunk sending in the nether The nether and the end don't send skylight. * Fix clang build errors * Fix water bottles becoming mundane potions This happened because the can become splash potion bit got set incorrectly. Water bottles and mundane potions are only differentiated by the fact that water bottles have a metadata of 0, so setting that bit made it a mundane potion. Also add missing break statements to the read item NBT switch, which would otherwise break items with custom names and also cause incorrect "Unimplemented NBT data when parsing!" logging. * Copy Protocol18x as Protocol19x Aditionally, method and class names have been swapped to clean up other diffs. This commit is only added to make the following diffs more readable; it doesn't make any other changes (beyond class names). * Make thrown potions use the correct appearence This was caused by potions now using metadata. * Add missing api doc for cSplashPotionEntity::GetItem * Fix compile error in SplashPotionEntity.cpp * Fix fix of cSplashPotionEntity API doc * Temporarilly disable fall damage particles These were causing issues in 1.9 due to the changed effect ID. * Properly send a kick packet when connecting with an invalid version This means that the client no longer waits on the server screen with no indication whatsoever. However, right now the server list ping isn't implemented for unknown versions, so it'll only load "Old" on the ping. I also added a GetVarIntSize method to cByteBuffer. This helps clean up part of the code here (and I think it could clean up other parts), but it may make sense for it to be moved elsewhere (or declared in a different way). * Handle server list pings from unrecognized versions This isn't the cleanest way of writing it (it feels odd to use ProtocolRecognizer to send packets, and the addition of m_InPingForUnrecognizedVersion feels like the wrong technique), but it works and I can't think of a better way (apart from creating a full separate protocol class to handle only the ping... which would be worse). * Use cPacketizer for the disconnect packet This also should fix clang build errors. * Add 1.9.3 / 1.9.4 support * Fix incorrect indentation in APIDesc
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virtual void SendDetachEntity (const cEntity & a_Entity, const cEntity & a_PreviousVehicle) override;
virtual void SendDisconnect (const AString & a_Reason) override;
virtual void SendEditSign (int a_BlockX, int a_BlockY, int a_BlockZ) override; ///< Request the client to open up the sign editor for the sign (1.6+)
virtual void SendEntityEffect (const cEntity & a_Entity, int a_EffectID, int a_Amplifier, int a_Duration) override;
virtual void SendEntityEquipment (const cEntity & a_Entity, short a_SlotNum, const cItem & a_Item) override;
virtual void SendEntityHeadLook (const cEntity & a_Entity) override;
virtual void SendEntityLook (const cEntity & a_Entity) override;
virtual void SendEntityMetadata (const cEntity & a_Entity) override;
virtual void SendEntityProperties (const cEntity & a_Entity) override;
virtual void SendEntityRelMove (const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ) override;
virtual void SendEntityRelMoveLook (const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ) override;
virtual void SendEntityStatus (const cEntity & a_Entity, char a_Status) override;
virtual void SendEntityVelocity (const cEntity & a_Entity) override;
virtual void SendExplosion (double a_BlockX, double a_BlockY, double a_BlockZ, float a_Radius, const cVector3iArray & a_BlocksAffected, const Vector3d & a_PlayerMotion) override;
virtual void SendGameMode (eGameMode a_GameMode) override;
virtual void SendHealth (void) override;
virtual void SendHeldItemChange (int a_ItemIndex) override;
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virtual void SendHideTitle (void) override;
virtual void SendInventorySlot (char a_WindowID, short a_SlotNum, const cItem & a_Item) override;
virtual void SendKeepAlive (UInt32 a_PingID) override;
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virtual void SendLeashEntity (const cEntity & a_Entity, const cEntity & a_EntityLeashedTo) override;
virtual void SendLogin (const cPlayer & a_Player, const cWorld & a_World) override;
virtual void SendLoginSuccess (void) override;
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virtual void SendMapData (const cMap & a_Map, int a_DataStartX, int a_DataStartY) override;
virtual void SendPaintingSpawn (const cPainting & a_Painting) override;
virtual void SendPickupSpawn (const cPickup & a_Pickup) override;
virtual void SendPlayerAbilities (void) override;
virtual void SendEntityAnimation (const cEntity & a_Entity, char a_Animation) override;
virtual void 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) override;
virtual void SendParticleEffect (const AString & a_ParticleName, Vector3f a_Src, Vector3f a_Offset, float a_ParticleData, int a_ParticleAmount, std::array<int, 2> a_Data) override;
virtual void SendPlayerListAddPlayer (const cPlayer & a_Player) override;
virtual void SendPlayerListRemovePlayer (const cPlayer & a_Player) override;
virtual void SendPlayerListUpdateGameMode (const cPlayer & a_Player) override;
virtual void SendPlayerListUpdatePing (const cPlayer & a_Player) override;
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virtual void SendPlayerListUpdateDisplayName(const cPlayer & a_Player, const AString & a_CustomName) override;
virtual void SendPlayerMaxSpeed (void) override;
virtual void SendPlayerMoveLook (void) override;
virtual void SendPlayerPosition (void) override;
virtual void SendPlayerSpawn (const cPlayer & a_Player) override;
virtual void SendPluginMessage (const AString & a_Channel, const AString & a_Message) override;
virtual void SendRemoveEntityEffect (const cEntity & a_Entity, int a_EffectID) override;
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virtual void SendResetTitle (void) override;
virtual void SendRespawn (eDimension a_Dimension) override;
virtual void SendSoundEffect (const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch) override;
virtual void SendExperience (void) override;
virtual void SendExperienceOrb (const cExpOrb & a_ExpOrb) override;
virtual void SendScoreboardObjective (const AString & a_Name, const AString & a_DisplayName, Byte a_Mode) override;
virtual void SendScoreUpdate (const AString & a_Objective, const AString & a_Player, cObjective::Score a_Score, Byte a_Mode) override;
virtual void SendDisplayObjective (const AString & a_Objective, cScoreboard::eDisplaySlot a_Display) override;
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virtual void SendSetSubTitle (const cCompositeChat & a_SubTitle) override;
virtual void SendSetRawSubTitle (const AString & a_SubTitle) override;
virtual void SendSetTitle (const cCompositeChat & a_Title) override;
virtual void SendSetRawTitle (const AString & a_Title) override;
virtual void SendSoundParticleEffect (const EffectID a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data) override;
virtual void SendSpawnFallingBlock (const cFallingBlock & a_FallingBlock) override;
virtual void SendSpawnMob (const cMonster & a_Mob) override;
virtual void SendSpawnObject (const cEntity & a_Entity, char a_ObjectType, int a_ObjectData, Byte a_Yaw, Byte a_Pitch) override;
virtual void SendSpawnVehicle (const cEntity & a_Vehicle, char a_VehicleType, char a_VehicleSubType) override;
virtual void SendStatistics (const cStatManager & a_Manager) override;
virtual void SendTabCompletionResults (const AStringVector & a_Results) override;
virtual void SendTeleportEntity (const cEntity & a_Entity) override;
virtual void SendThunderbolt (int a_BlockX, int a_BlockY, int a_BlockZ) override;
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virtual void SendTitleTimes (int a_FadeInTicks, int a_DisplayTicks, int a_FadeOutTicks) override;
virtual void SendTimeUpdate (Int64 a_WorldAge, Int64 a_TimeOfDay, bool a_DoDaylightCycle) override;
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virtual void SendUnleashEntity (const cEntity & a_Entity) override;
virtual void SendUnloadChunk (int a_ChunkX, int a_ChunkZ) override;
virtual void SendUpdateBlockEntity (cBlockEntity & a_BlockEntity) override;
virtual void SendUpdateSign (int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4) override;
virtual void SendUseBed (const cEntity & a_Entity, int a_BlockX, int a_BlockY, int a_BlockZ) override;
virtual void SendWeather (eWeather a_Weather) override;
virtual void SendWholeInventory (const cWindow & a_Window) override;
virtual void SendWindowClose (const cWindow & a_Window) override;
virtual void SendWindowOpen (const cWindow & a_Window) override;
virtual void SendWindowProperty (const cWindow & a_Window, short a_Property, short a_Value) override;
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virtual AString GetAuthServerID(void) override { return m_AuthServerID; }
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/** Compress the packet. a_Packet must be without packet length.
a_Compressed will be set to the compressed packet includes packet length and data length.
If compression fails, the function returns false. */
static bool CompressPacket(const AString & a_Packet, AString & a_Compressed);
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/** The 1.8 protocol use a particle id instead of a string. This function converts the name to the id. If the name is incorrect, it returns 0. */
static int GetParticleID(const AString & a_ParticleName);
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/** Minecraft 1.8 use other locations to spawn the item frame. This function converts the 1.7 positions to 1.8 positions. */
static void FixItemFramePositions(int a_ObjectData, double & a_PosX, double & a_PosZ, double & a_Yaw);
protected:
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AString m_ServerAddress;
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UInt16 m_ServerPort;
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AString m_AuthServerID;
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/** State of the protocol. 1 = status, 2 = login, 3 = game */
UInt32 m_State;
/** Buffer for the received data */
cByteBuffer m_ReceivedData;
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bool m_IsEncrypted;
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cAesCfb128Decryptor m_Decryptor;
cAesCfb128Encryptor m_Encryptor;
/** The logfile where the comm is logged, when g_ShouldLogComm is true */
cFile m_CommLogFile;
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/** Adds the received (unencrypted) data to m_ReceivedData, parses complete packets */
void AddReceivedData(const char * a_Data, size_t a_Size);
/** Nobody inherits 1.8, so it doesn't use this method */
virtual UInt32 GetPacketID(ePacketType a_Packet) override;
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/** Converts eMonsterType to protocol-specific mob types */
virtual UInt32 GetProtocolMobType(eMonsterType a_MobType) override;
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/** Reads and handles the packet. The packet length and type have already been read.
Returns true if the packet was understood, false if it was an unknown packet
*/
bool HandlePacket(cByteBuffer & a_ByteBuffer, UInt32 a_PacketType);
// Packet handlers while in the Status state (m_State == 1):
void HandlePacketStatusPing(cByteBuffer & a_ByteBuffer);
void HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer);
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// Packet handlers while in the Login state (m_State == 2):
void HandlePacketLoginEncryptionResponse(cByteBuffer & a_ByteBuffer);
void HandlePacketLoginStart(cByteBuffer & a_ByteBuffer);
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// Packet handlers while in the Game state (m_State == 3):
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void HandlePacketAnimation (cByteBuffer & a_ByteBuffer);
void HandlePacketBlockDig (cByteBuffer & a_ByteBuffer);
void HandlePacketBlockPlace (cByteBuffer & a_ByteBuffer);
void HandlePacketChatMessage (cByteBuffer & a_ByteBuffer);
void HandlePacketClientSettings (cByteBuffer & a_ByteBuffer);
void HandlePacketClientStatus (cByteBuffer & a_ByteBuffer);
void HandlePacketCreativeInventoryAction(cByteBuffer & a_ByteBuffer);
void HandlePacketEntityAction (cByteBuffer & a_ByteBuffer);
void HandlePacketKeepAlive (cByteBuffer & a_ByteBuffer);
void HandlePacketPlayer (cByteBuffer & a_ByteBuffer);
void HandlePacketPlayerAbilities (cByteBuffer & a_ByteBuffer);
void HandlePacketPlayerLook (cByteBuffer & a_ByteBuffer);
void HandlePacketPlayerPos (cByteBuffer & a_ByteBuffer);
void HandlePacketPlayerPosLook (cByteBuffer & a_ByteBuffer);
void HandlePacketPluginMessage (cByteBuffer & a_ByteBuffer);
void HandlePacketSlotSelect (cByteBuffer & a_ByteBuffer);
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void HandlePacketSpectate (cByteBuffer & a_ByteBuffer);
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void HandlePacketSteerVehicle (cByteBuffer & a_ByteBuffer);
void HandlePacketTabComplete (cByteBuffer & a_ByteBuffer);
void HandlePacketUpdateSign (cByteBuffer & a_ByteBuffer);
void HandlePacketUseEntity (cByteBuffer & a_ByteBuffer);
void HandlePacketEnchantItem (cByteBuffer & a_ByteBuffer);
void HandlePacketWindowClick (cByteBuffer & a_ByteBuffer);
void HandlePacketWindowClose (cByteBuffer & a_ByteBuffer);
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/** Parses Vanilla plugin messages into specific ClientHandle calls.
The message payload is still in the bytebuffer, the handler reads it specifically for each handled channel */
void HandleVanillaPluginMessage(cByteBuffer & a_ByteBuffer, const AString & a_Channel);
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/** Sends the data to the client, encrypting them if needed. */
virtual void SendData(const char * a_Data, size_t a_Size) override;
/** Sends the packet to the client. Called by the cPacketizer's destructor. */
virtual void SendPacket(cPacketizer & a_Packet) override;
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void SendCompass(const cWorld & a_World);
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/** Reads an item out of the received data, sets a_Item to the values read.
Returns false if not enough received data.
a_KeepRemainingBytes tells the function to keep that many bytes at the end of the buffer. */
virtual bool ReadItem(cByteBuffer & a_ByteBuffer, cItem & a_Item, size_t a_KeepRemainingBytes = 0);
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/** Parses item metadata as read by ReadItem(), into the item enchantments. */
void ParseItemMetadata(cItem & a_Item, const AString & a_Metadata);
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void StartEncryption(const Byte * a_Key);
/** Converts the BlockFace received by the protocol into eBlockFace constants.
If the received value doesn't match any of our eBlockFace constants, BLOCK_FACE_NONE is returned. */
eBlockFace FaceIntToBlockFace(Int8 a_FaceInt);
/** Writes the item data into a packet. */
void WriteItem(cPacketizer & a_Pkt, const cItem & a_Item);
/** Writes the metadata for the specified entity, not including the terminating 0x7f. */
void WriteEntityMetadata(cPacketizer & a_Pkt, const cEntity & a_Entity);
/** Writes the mob-specific metadata for the specified mob */
void WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_Mob);
/** Writes the entity properties for the specified entity, including the Count field. */
void WriteEntityProperties(cPacketizer & a_Pkt, const cEntity & a_Entity);
/** Writes the block entity data for the specified block entity into the packet. */
void WriteBlockEntity(cPacketizer & a_Pkt, const cBlockEntity & a_BlockEntity);
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} ;