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cuberite-2a/src/Protocol/Protocol_1_8.cpp
Damián Imrich 071b7be3d4
Basic elytra flight (#5124) 
* Basic elytra flight

Co-authored-by: 12xx12 <44411062+12xx12@users.noreply.github.com>
Co-authored-by: Tiger Wang <ziwei.tiger@outlook.com>
2021-04-03 18:45:20 +01:00

4187 lines
110 KiB
C++
Raw Blame History

// Protocol_1_8.cpp
/*
Implements the 1.8 protocol classes:
- cProtocol_1_8_0
- release 1.8 protocol (#47)
*/
#include "Globals.h"
#include "Protocol_1_8.h"
#include "main.h"
#include "../mbedTLS++/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 "../UUID.h"
#include "../World.h"
#include "../JsonUtils.h"
#include "../WorldStorage/FastNBT.h"
#include "../WorldStorage/EnchantmentSerializer.h"
#include "../Entities/ExpOrb.h"
#include "../Entities/Minecart.h"
#include "../Entities/FallingBlock.h"
#include "../Entities/Floater.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 "../Mobs/IncludeAllMonsters.h"
#include "../UI/Window.h"
#include "../UI/HorseWindow.h"
#include "../BlockEntities/BannerEntity.h"
#include "../BlockEntities/BeaconEntity.h"
#include "../BlockEntities/CommandBlockEntity.h"
#include "../BlockEntities/EnchantingTableEntity.h"
#include "../BlockEntities/MobHeadEntity.h"
#include "../BlockEntities/MobSpawnerEntity.h"
#include "../BlockEntities/FlowerPotEntity.h"
#include "../Bindings/PluginManager.h"
#define HANDLE_READ(ByteBuf, Proc, Type, Var) \
Type Var; \
do { \
if (!ByteBuf.Proc(Var))\
{\
return;\
} \
} while (false)
#define HANDLE_PACKET_READ(ByteBuf, Proc, Type, Var) \
Type Var; \
do { \
{ \
if (!ByteBuf.Proc(Var)) \
{ \
ByteBuf.CheckValid(); \
return false; \
} \
ByteBuf.CheckValid(); \
} \
} while (false)
const int MAX_ENC_LEN = 512; // Maximum size of the encrypted message; should be 128, but who knows...
static const UInt32 CompressionThreshold = 256; // After how large a packet should we compress it.
////////////////////////////////////////////////////////////////////////////////
// cProtocol_1_8_0:
cProtocol_1_8_0::cProtocol_1_8_0(cClientHandle * a_Client, const AString & a_ServerAddress, State a_State) :
Super(a_Client),
m_State(a_State),
m_ServerAddress(a_ServerAddress),
m_IsEncrypted(false)
{
AStringVector Params;
SplitZeroTerminatedStrings(a_ServerAddress, Params);
if (Params.size() >= 2)
{
m_ServerAddress = Params[0];
if (Params[1] == "FML")
{
LOGD("Forge client connected!");
m_Client->SetIsForgeClient();
}
else if (Params.size() == 4)
{
if (cRoot::Get()->GetServer()->ShouldAllowBungeeCord())
{
// 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
LOGD("Player at %s connected via BungeeCord", Params[1].c_str());
m_Client->SetIPString(Params[1]);
cUUID UUID;
UUID.FromString(Params[2]);
m_Client->SetUUID(UUID);
Json::Value root;
if (!JsonUtils::ParseString(Params[3], root))
{
LOGERROR("Unable to parse player properties: '%s'", Params[3]);
}
else
{
m_Client->SetProperties(root);
}
}
else
{
LOG("BungeeCord is disabled, but client sent additional data, set AllowBungeeCord=1 if you want to allow it");
}
}
else
{
LOG("Unknown additional data sent in server address (BungeeCord/FML?): %zu parameters", Params.size());
// TODO: support FML + BungeeCord? (what parameters does it send in that case?) https://github.com/SpigotMC/BungeeCord/issues/899
}
}
// 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<unsigned>(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_8_0::DataReceived(cByteBuffer & a_Buffer, ContiguousByteBuffer && a_Data)
{
if (m_IsEncrypted)
{
m_Decryptor.ProcessData(a_Data.data(), a_Data.size());
}
AddReceivedData(a_Buffer, a_Data);
}
void cProtocol_1_8_0::SendAttachEntity(const cEntity & a_Entity, const cEntity & a_Vehicle)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktAttachEntity);
Pkt.WriteBEUInt32(a_Entity.GetUniqueID());
Pkt.WriteBEUInt32(a_Vehicle.GetUniqueID());
Pkt.WriteBool(false);
}
void cProtocol_1_8_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, pktBlockAction);
Pkt.WriteXYZPosition64(a_BlockX, a_BlockY, a_BlockZ);
Pkt.WriteBEInt8(a_Byte1);
Pkt.WriteBEInt8(a_Byte2);
Pkt.WriteVarInt32(a_BlockType);
}
void cProtocol_1_8_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, pktBlockBreakAnim);
Pkt.WriteVarInt32(a_EntityID);
Pkt.WriteXYZPosition64(a_BlockX, a_BlockY, a_BlockZ);
Pkt.WriteBEInt8(a_Stage);
}
void cProtocol_1_8_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, pktBlockChange);
Pkt.WriteXYZPosition64(a_BlockX, a_BlockY, a_BlockZ);
Pkt.WriteVarInt32((static_cast<UInt32>(a_BlockType) << 4) | (static_cast<UInt32>(a_BlockMeta) & 15));
}
void cProtocol_1_8_0::SendBlockChanges(int a_ChunkX, int a_ChunkZ, const sSetBlockVector & a_Changes)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktBlockChanges);
Pkt.WriteBEInt32(a_ChunkX);
Pkt.WriteBEInt32(a_ChunkZ);
Pkt.WriteVarInt32(static_cast<UInt32>(a_Changes.size()));
for (sSetBlockVector::const_iterator itr = a_Changes.begin(), end = a_Changes.end(); itr != end; ++itr)
{
Int16 Coords = static_cast<Int16>(itr->m_RelY | (itr->m_RelZ << 8) | (itr->m_RelX << 12));
Pkt.WriteBEInt16(Coords);
Pkt.WriteVarInt32(static_cast<UInt32>(itr->m_BlockType & 0xFFF) << 4 | (itr->m_BlockMeta & 0xF));
} // for itr - a_Changes[]
}
void cProtocol_1_8_0::SendBossBarAdd(UInt32 a_UniqueID, const cCompositeChat & a_Title, float a_FractionFilled, BossBarColor a_Color, BossBarDivisionType a_DivisionType, bool a_DarkenSky, bool a_PlayEndMusic, bool a_CreateFog)
{
// No such packet here
}
void cProtocol_1_8_0::SendBossBarRemove(UInt32 a_UniqueID)
{
// No such packet here
}
void cProtocol_1_8_0::SendBossBarUpdateFlags(UInt32 a_UniqueID, bool a_DarkenSky, bool a_PlayEndMusic, bool a_CreateFog)
{
// No such packet here
}
void cProtocol_1_8_0::SendBossBarUpdateHealth(UInt32 a_UniqueID, float a_FractionFilled)
{
// No such packet here
}
void cProtocol_1_8_0::SendBossBarUpdateStyle(UInt32 a_UniqueID, BossBarColor a_Color, BossBarDivisionType a_DivisionType)
{
// No such packet here
}
void cProtocol_1_8_0::SendBossBarUpdateTitle(UInt32 a_UniqueID, const cCompositeChat & a_Title)
{
// No such packet here
}
void cProtocol_1_8_0::SendCameraSetTo(const cEntity & a_Entity)
{
cPacketizer Pkt(*this, pktCameraSetTo);
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
}
void cProtocol_1_8_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_8_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_8_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, pktChatRaw);
Pkt.WriteString(a_MessageRaw);
Pkt.WriteBEInt8(a_Type);
}
void cProtocol_1_8_0::SendChunkData(const ContiguousByteBufferView a_ChunkData)
{
ASSERT(m_State == 3); // In game mode?
cCSLock Lock(m_CSPacket);
SendData(a_ChunkData);
}
void cProtocol_1_8_0::SendCollectEntity(const cEntity & a_Collected, const cEntity & a_Collector, unsigned a_Count)
{
UNUSED(a_Count);
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktCollectEntity);
Pkt.WriteVarInt32(a_Collected.GetUniqueID());
Pkt.WriteVarInt32(a_Collector.GetUniqueID());
}
void cProtocol_1_8_0::SendDestroyEntity(const cEntity & a_Entity)
{
ASSERT(m_State == 3); // In game mode?
{
cPacketizer Pkt(*this, pktDestroyEntity);
Pkt.WriteVarInt32(1);
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
}
if (!a_Entity.IsMob())
{
return;
}
const auto & Mob = static_cast<const cMonster &>(a_Entity);
if ((Mob.GetMobType() == mtEnderDragon) || (Mob.GetMobType() == mtWither))
{
SendBossBarRemove(Mob.GetUniqueID());
}
}
void cProtocol_1_8_0::SendDetachEntity(const cEntity & a_Entity, const cEntity & a_PreviousVehicle)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktAttachEntity);
Pkt.WriteBEUInt32(a_Entity.GetUniqueID());
Pkt.WriteBEUInt32(0);
Pkt.WriteBool(false);
}
void cProtocol_1_8_0::SendDisconnect(const AString & a_Reason)
{
switch (m_State)
{
case State::Login:
{
cPacketizer Pkt(*this, pktDisconnectDuringLogin);
Pkt.WriteString(Printf("{\"text\":\"%s\"}", EscapeString(a_Reason).c_str()));
break;
}
case State::Game:
{
cPacketizer Pkt(*this, pktDisconnectDuringGame);
Pkt.WriteString(Printf("{\"text\":\"%s\"}", EscapeString(a_Reason).c_str()));
break;
}
default:
{
FLOGERROR(
"Tried to send disconnect in invalid game state {0}",
static_cast<int>(m_State)
);
}
}
}
void cProtocol_1_8_0::SendEditSign(int a_BlockX, int a_BlockY, int a_BlockZ)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktEditSign);
Pkt.WriteXYZPosition64(a_BlockX, a_BlockY, a_BlockZ);
}
void cProtocol_1_8_0::SendEntityAnimation(const cEntity & a_Entity, char a_Animation)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktEntityAnimation);
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteBEInt8(a_Animation);
}
void cProtocol_1_8_0::SendEntityEffect(const cEntity & a_Entity, int a_EffectID, int a_Amplifier, int a_Duration)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktEntityEffect);
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteBEUInt8(static_cast<UInt8>(a_EffectID));
Pkt.WriteBEUInt8(static_cast<UInt8>(a_Amplifier));
Pkt.WriteVarInt32(static_cast<UInt32>(a_Duration));
Pkt.WriteBool(false); // Hide particles
}
void cProtocol_1_8_0::SendEntityEquipment(const cEntity & a_Entity, short a_SlotNum, const cItem & a_Item)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktEntityEquipment);
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteBEInt16(a_SlotNum);
WriteItem(Pkt, a_Item);
}
void cProtocol_1_8_0::SendEntityHeadLook(const cEntity & a_Entity)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktEntityHeadLook);
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteByteAngle(a_Entity.GetHeadYaw());
}
void cProtocol_1_8_0::SendEntityLook(const cEntity & a_Entity)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktEntityLook);
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteByteAngle(a_Entity.GetYaw());
Pkt.WriteByteAngle(a_Entity.GetPitch());
Pkt.WriteBool(a_Entity.IsOnGround());
}
void cProtocol_1_8_0::SendEntityMetadata(const cEntity & a_Entity)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktEntityMeta);
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
WriteEntityMetadata(Pkt, a_Entity);
Pkt.WriteBEUInt8(0x7f); // The termination byte
}
void cProtocol_1_8_0::SendEntityPosition(const cEntity & a_Entity)
{
ASSERT(m_State == 3); // In game mode?
const auto Delta = (a_Entity.GetPosition() - a_Entity.GetLastSentPosition()) * 32;
// Limitations of a byte
static const auto Max = std::numeric_limits<Int8>::max();
if ((std::abs(Delta.x) <= Max) && (std::abs(Delta.y) <= Max) && (std::abs(Delta.z) <= Max))
{
const auto Move = static_cast<Vector3<Int8>>(Delta);
// Difference within limitations, use a relative move packet
if (a_Entity.IsOrientationDirty())
{
cPacketizer Pkt(*this, pktEntityRelMoveLook);
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteBEInt8(Move.x);
Pkt.WriteBEInt8(Move.y);
Pkt.WriteBEInt8(Move.z);
Pkt.WriteByteAngle(a_Entity.GetYaw());
Pkt.WriteByteAngle(a_Entity.GetPitch());
Pkt.WriteBool(a_Entity.IsOnGround());
}
else
{
cPacketizer Pkt(*this, pktEntityRelMove);
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteBEInt8(Move.x);
Pkt.WriteBEInt8(Move.y);
Pkt.WriteBEInt8(Move.z);
Pkt.WriteBool(a_Entity.IsOnGround());
}
return;
}
// Too big a movement, do a teleport
SendEntityTeleport(a_Entity);
}
void cProtocol_1_8_0::SendEntityProperties(const cEntity & a_Entity)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktEntityProperties);
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
WriteEntityProperties(Pkt, a_Entity);
}
void cProtocol_1_8_0::SendEntityStatus(const cEntity & a_Entity, char a_Status)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktEntityStatus);
Pkt.WriteBEUInt32(a_Entity.GetUniqueID());
Pkt.WriteBEInt8(a_Status);
}
void cProtocol_1_8_0::SendEntityVelocity(const cEntity & a_Entity)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktEntityVelocity);
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
// 400 = 8000 / 20 ... Conversion from our speed in m / s to 8000 m / tick
Pkt.WriteBEInt16(static_cast<Int16>(a_Entity.GetSpeedX() * 400));
Pkt.WriteBEInt16(static_cast<Int16>(a_Entity.GetSpeedY() * 400));
Pkt.WriteBEInt16(static_cast<Int16>(a_Entity.GetSpeedZ() * 400));
}
void cProtocol_1_8_0::SendExperience(void)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktExperience);
cPlayer * Player = m_Client->GetPlayer();
Pkt.WriteBEFloat(Player->GetXpPercentage());
Pkt.WriteVarInt32(static_cast<UInt32>(Player->GetXpLevel()));
Pkt.WriteVarInt32(static_cast<UInt32>(Player->GetCurrentXp()));
}
void cProtocol_1_8_0::SendExperienceOrb(const cExpOrb & a_ExpOrb)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktSpawnExperienceOrb);
Pkt.WriteVarInt32(a_ExpOrb.GetUniqueID());
Pkt.WriteFPInt(a_ExpOrb.GetPosX());
Pkt.WriteFPInt(a_ExpOrb.GetPosY());
Pkt.WriteFPInt(a_ExpOrb.GetPosZ());
Pkt.WriteBEInt16(static_cast<Int16>(a_ExpOrb.GetReward()));
}
void cProtocol_1_8_0::SendExplosion(const Vector3f a_Position, const float a_Power)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktExplosion);
Pkt.WriteBEFloat(a_Position.x);
Pkt.WriteBEFloat(a_Position.y);
Pkt.WriteBEFloat(a_Position.z);
Pkt.WriteBEFloat(a_Power);
Pkt.WriteBEUInt32(0);
Pkt.WriteBEFloat(0);
Pkt.WriteBEFloat(0);
Pkt.WriteBEFloat(0);
}
void cProtocol_1_8_0::SendGameMode(eGameMode a_GameMode)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktGameMode);
Pkt.WriteBEUInt8(3); // Reason: Change game mode
Pkt.WriteBEFloat(static_cast<float>(a_GameMode)); // The protocol really represents the value with a float!
}
void cProtocol_1_8_0::SendHealth(void)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktUpdateHealth);
cPlayer * Player = m_Client->GetPlayer();
Pkt.WriteBEFloat(static_cast<float>(Player->GetHealth()));
Pkt.WriteVarInt32(static_cast<UInt32>(Player->GetFoodLevel()));
Pkt.WriteBEFloat(static_cast<float>(Player->GetFoodSaturationLevel()));
}
void cProtocol_1_8_0::SendHeldItemChange(int a_ItemIndex)
{
ASSERT((a_ItemIndex >= 0) && (a_ItemIndex <= 8)); // Valid check
cPacketizer Pkt(*this, pktHeldItemChange);
Pkt.WriteBEInt8(static_cast<Int8>(a_ItemIndex));
}
void cProtocol_1_8_0::SendHideTitle(void)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktTitle);
Pkt.WriteVarInt32(3); // Hide title
}
void cProtocol_1_8_0::SendInventorySlot(char a_WindowID, short a_SlotNum, const cItem & a_Item)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktInventorySlot);
Pkt.WriteBEInt8(a_WindowID);
Pkt.WriteBEInt16(a_SlotNum);
WriteItem(Pkt, a_Item);
}
void cProtocol_1_8_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, pktKeepAlive);
Pkt.WriteVarInt32(a_PingID);
}
void cProtocol_1_8_0::SendLeashEntity(const cEntity & a_Entity, const cEntity & a_EntityLeashedTo)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktLeashEntity);
Pkt.WriteBEUInt32(a_Entity.GetUniqueID());
Pkt.WriteBEUInt32(a_EntityLeashedTo.GetUniqueID());
Pkt.WriteBool(true);
}
void cProtocol_1_8_0::SendUnleashEntity(const cEntity & a_Entity)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktLeashEntity);
Pkt.WriteBEUInt32(a_Entity.GetUniqueID());
Pkt.WriteBEInt32(-1);
Pkt.WriteBool(true);
}
void cProtocol_1_8_0::SendLogin(const cPlayer & a_Player, const cWorld & a_World)
{
// Send the Join Game packet:
{
cServer * Server = cRoot::Get()->GetServer();
cPacketizer Pkt(*this, pktJoinGame);
Pkt.WriteBEUInt32(a_Player.GetUniqueID());
Pkt.WriteBEUInt8(static_cast<UInt8>(a_Player.GetEffectiveGameMode()) | (Server->IsHardcore() ? 0x08 : 0)); // Hardcore flag bit 4
Pkt.WriteBEInt8(static_cast<Int8>(a_World.GetDimension()));
Pkt.WriteBEUInt8(2); // TODO: Difficulty (set to Normal)
Pkt.WriteBEUInt8(static_cast<UInt8>(Clamp<size_t>(Server->GetMaxPlayers(), 0, 255)));
Pkt.WriteString("default"); // Level type - wtf?
Pkt.WriteBool(false); // Reduced Debug Info - wtf?
}
// Send the spawn position:
{
cPacketizer Pkt(*this, pktSpawnPosition);
Pkt.WriteXYZPosition64(FloorC(a_World.GetSpawnX()), FloorC(a_World.GetSpawnY()), FloorC(a_World.GetSpawnZ()));
}
// Send the server difficulty:
{
cPacketizer Pkt(*this, pktDifficulty);
Pkt.WriteBEInt8(1);
}
// Send player abilities:
SendPlayerAbilities();
}
void cProtocol_1_8_0::SendLoginSuccess(void)
{
ASSERT(m_State == 2); // State: login?
// Enable compression:
{
cPacketizer Pkt(*this, pktStartCompression);
Pkt.WriteVarInt32(CompressionThreshold);
}
m_State = State::Game;
{
cPacketizer Pkt(*this, pktLoginSuccess);
Pkt.WriteString(m_Client->GetUUID().ToLongString());
Pkt.WriteString(m_Client->GetUsername());
}
}
void cProtocol_1_8_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, pktSpawnPainting);
Pkt.WriteVarInt32(a_Painting.GetUniqueID());
Pkt.WriteString(a_Painting.GetName());
Pkt.WriteXYZPosition64(static_cast<Int32>(PosX), static_cast<Int32>(PosY), static_cast<Int32>(PosZ));
Pkt.WriteBEInt8(static_cast<Int8>(a_Painting.GetProtocolFacing()));
}
void cProtocol_1_8_0::SendMapData(const cMap & a_Map, int a_DataStartX, int a_DataStartY)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktMapData);
Pkt.WriteVarInt32(a_Map.GetID());
Pkt.WriteBEUInt8(static_cast<UInt8>(a_Map.GetScale()));
Pkt.WriteVarInt32(static_cast<UInt32>(a_Map.GetDecorators().size()));
for (const auto & Decorator : a_Map.GetDecorators())
{
Pkt.WriteBEUInt8(static_cast<Byte>((static_cast<Int32>(Decorator.GetType()) << 4) | (Decorator.GetRot() & 0xF)));
Pkt.WriteBEUInt8(static_cast<UInt8>(Decorator.GetPixelX()));
Pkt.WriteBEUInt8(static_cast<UInt8>(Decorator.GetPixelZ()));
}
Pkt.WriteBEUInt8(128);
Pkt.WriteBEUInt8(128);
Pkt.WriteBEUInt8(static_cast<UInt8>(a_DataStartX));
Pkt.WriteBEUInt8(static_cast<UInt8>(a_DataStartY));
Pkt.WriteVarInt32(static_cast<UInt32>(a_Map.GetData().size()));
for (auto itr = a_Map.GetData().cbegin(); itr != a_Map.GetData().cend(); ++itr)
{
Pkt.WriteBEUInt8(*itr);
}
}
void cProtocol_1_8_0::SendPlayerAbilities(void)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktPlayerAbilities);
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<float>(0.05 * Player->GetFlyingMaxSpeed()));
Pkt.WriteBEFloat(static_cast<float>(0.1 * Player->GetNormalMaxSpeed()));
}
void cProtocol_1_8_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, pktParticleEffect);
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_8_0::SendParticleEffect(const AString & a_ParticleName, Vector3f a_Src, Vector3f a_Offset, float a_ParticleData, int a_ParticleAmount, std::array<int, 2> a_Data)
{
ASSERT(m_State == 3); // In game mode?
int ParticleID = GetParticleID(a_ParticleName);
cPacketizer Pkt(*this, pktParticleEffect);
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<UInt32>(a_Data[0]));
Pkt.WriteVarInt32(static_cast<UInt32>(a_Data[1]));
break;
}
// blockcrack
// blockdust
case 37:
case 38:
{
Pkt.WriteVarInt32(static_cast<UInt32>(a_Data[0]));
break;
}
default:
{
break;
}
}
}
void cProtocol_1_8_0::SendPlayerListAddPlayer(const cPlayer & a_Player)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktPlayerList);
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<UInt32>(a_Player.GetEffectiveGameMode()));
Pkt.WriteVarInt32(static_cast<UInt32>(a_Player.GetClientHandle()->GetPing()));
Pkt.WriteBool(false);
}
void cProtocol_1_8_0::SendPlayerListHeaderFooter(const cCompositeChat & a_Header, const cCompositeChat & a_Footer)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktPlayerListHeaderFooter);
Pkt.WriteString(a_Header.CreateJsonString(false));
Pkt.WriteString(a_Footer.CreateJsonString(false));
}
void cProtocol_1_8_0::SendPlayerListRemovePlayer(const cPlayer & a_Player)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktPlayerList);
Pkt.WriteVarInt32(4);
Pkt.WriteVarInt32(1);
Pkt.WriteUUID(a_Player.GetUUID());
}
void cProtocol_1_8_0::SendPlayerListUpdateDisplayName(const cPlayer & a_Player, const AString & a_CustomName)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktPlayerList);
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_8_0::SendPlayerListUpdateGameMode(const cPlayer & a_Player)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktPlayerList);
Pkt.WriteVarInt32(1);
Pkt.WriteVarInt32(1);
Pkt.WriteUUID(a_Player.GetUUID());
Pkt.WriteVarInt32(static_cast<UInt32>(a_Player.GetEffectiveGameMode()));
}
void cProtocol_1_8_0::SendPlayerListUpdatePing()
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktPlayerList);
Pkt.WriteVarInt32(2);
const auto World = m_Client->GetPlayer()->GetWorld();
Pkt.WriteVarInt32(static_cast<UInt32>(World->GetPlayerCount()));
World->ForEachPlayer([&Pkt](cPlayer & a_Player)
{
Pkt.WriteUUID(a_Player.GetUUID());
Pkt.WriteVarInt32(static_cast<UInt32>(a_Player.GetClientHandle()->GetPing()));
return false;
});
}
void cProtocol_1_8_0::SendPlayerMaxSpeed(void)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktEntityProperties);
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_8_0::SendPlayerMoveLook(void)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktPlayerMoveLook);
cPlayer * Player = m_Client->GetPlayer();
Pkt.WriteBEDouble(Player->GetPosX());
Pkt.WriteBEDouble(Player->GetPosY());
Pkt.WriteBEDouble(Player->GetPosZ());
Pkt.WriteBEFloat(static_cast<float>(Player->GetYaw()));
Pkt.WriteBEFloat(static_cast<float>(Player->GetPitch()));
Pkt.WriteBEUInt8(0);
}
void cProtocol_1_8_0::SendPlayerPosition(void)
{
// There is no dedicated packet for this, send the whole thing:
SendPlayerMoveLook();
}
void cProtocol_1_8_0::SendPlayerSpawn(const cPlayer & a_Player)
{
// Called to spawn another player for the client
cPacketizer Pkt(*this, pktSpawnOtherPlayer);
Pkt.WriteVarInt32(a_Player.GetUniqueID());
Pkt.WriteUUID(a_Player.GetUUID());
Vector3d LastSentPos = a_Player.GetLastSentPosition();
Pkt.WriteFPInt(LastSentPos.x);
Pkt.WriteFPInt(LastSentPos.y + 0.001); // The "+ 0.001" is there because otherwise the player falls through the block they were standing on.
Pkt.WriteFPInt(LastSentPos.z);
Pkt.WriteByteAngle(a_Player.GetYaw());
Pkt.WriteByteAngle(a_Player.GetPitch());
short ItemType = a_Player.GetEquippedItem().IsEmpty() ? 0 : a_Player.GetEquippedItem().m_ItemType;
Pkt.WriteBEInt16(ItemType);
Pkt.WriteBEUInt8((3 << 5) | 6); // Metadata: float + index 6
Pkt.WriteBEFloat(static_cast<float>(a_Player.GetHealth()));
Pkt.WriteBEUInt8((4 << 5 | (2 & 0x1F)) & 0xFF);
Pkt.WriteString(a_Player.GetName());
Pkt.WriteBEUInt8(0x7f); // Metadata: end
}
void cProtocol_1_8_0::SendPluginMessage(const AString & a_Channel, const ContiguousByteBufferView a_Message)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktPluginMessage);
Pkt.WriteString(a_Channel);
Pkt.WriteBuf(a_Message);
}
void cProtocol_1_8_0::SendRemoveEntityEffect(const cEntity & a_Entity, int a_EffectID)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktRemoveEntityEffect);
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteBEUInt8(static_cast<UInt8>(a_EffectID));
}
void cProtocol_1_8_0::SendResetTitle(void)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktTitle);
Pkt.WriteVarInt32(4); // Reset title
}
void cProtocol_1_8_0::SendResourcePack(const AString & a_ResourcePackUrl)
{
cPacketizer Pkt(*this, pktResourcePack);
cSha1Checksum Checksum;
Checksum.Update(reinterpret_cast<const Byte *>(a_ResourcePackUrl.c_str()), a_ResourcePackUrl.size());
Byte Digest[20];
Checksum.Finalize(Digest);
AString Sha1Output;
cSha1Checksum::DigestToHex(Digest, Sha1Output);
Pkt.WriteString(a_ResourcePackUrl);
Pkt.WriteString(Sha1Output);
}
void cProtocol_1_8_0::SendRespawn(eDimension a_Dimension)
{
cPacketizer Pkt(*this, pktRespawn);
cPlayer * Player = m_Client->GetPlayer();
Pkt.WriteBEInt32(static_cast<Int32>(a_Dimension));
Pkt.WriteBEUInt8(2); // TODO: Difficulty (set to Normal)
Pkt.WriteBEUInt8(static_cast<Byte>(Player->GetEffectiveGameMode()));
Pkt.WriteString("default");
}
void cProtocol_1_8_0::SendScoreboardObjective(const AString & a_Name, const AString & a_DisplayName, Byte a_Mode)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktScoreboardObjective);
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_8_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, pktUpdateScore);
Pkt.WriteString(a_Player);
Pkt.WriteBEUInt8(a_Mode);
Pkt.WriteString(a_Objective);
if (a_Mode != 1)
{
Pkt.WriteVarInt32(static_cast<UInt32>(a_Score));
}
}
void cProtocol_1_8_0::SendDisplayObjective(const AString & a_Objective, cScoreboard::eDisplaySlot a_Display)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktDisplayObjective);
Pkt.WriteBEUInt8(static_cast<UInt8>(a_Display));
Pkt.WriteString(a_Objective);
}
void cProtocol_1_8_0::SendSetSubTitle(const cCompositeChat & a_SubTitle)
{
SendSetRawSubTitle(a_SubTitle.CreateJsonString(false));
}
void cProtocol_1_8_0::SendSetRawSubTitle(const AString & a_SubTitle)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktTitle);
Pkt.WriteVarInt32(1); // Set subtitle
Pkt.WriteString(a_SubTitle);
}
void cProtocol_1_8_0::SendSetTitle(const cCompositeChat & a_Title)
{
SendSetRawTitle(a_Title.CreateJsonString(false));
}
void cProtocol_1_8_0::SendSetRawTitle(const AString & a_Title)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktTitle);
Pkt.WriteVarInt32(0); // Set title
Pkt.WriteString(a_Title);
}
void cProtocol_1_8_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, pktSoundEffect);
Pkt.WriteString(a_SoundName);
Pkt.WriteBEInt32(static_cast<Int32>(a_X * 8.0));
Pkt.WriteBEInt32(static_cast<Int32>(a_Y * 8.0));
Pkt.WriteBEInt32(static_cast<Int32>(a_Z * 8.0));
Pkt.WriteBEFloat(a_Volume);
Pkt.WriteBEUInt8(static_cast<Byte>(a_Pitch * 63));
}
void cProtocol_1_8_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, pktSoundParticleEffect);
Pkt.WriteBEInt32(static_cast<int>(a_EffectID));
Pkt.WriteXYZPosition64(a_SrcX, a_SrcY, a_SrcZ);
Pkt.WriteBEInt32(a_Data);
Pkt.WriteBool(false);
}
void cProtocol_1_8_0::SendSpawnEntity(const cEntity & a_Entity)
{
Int32 EntityData = /* Default: velocity present flag */ 1;
const auto EntityType = GetProtocolEntityType(a_Entity);
if (a_Entity.IsMinecart())
{
const auto & Cart = static_cast<const cMinecart &>(a_Entity);
EntityData = static_cast<Int32>(Cart.GetPayload());
}
else if (a_Entity.IsItemFrame())
{
const auto & Frame = static_cast<const cItemFrame &>(a_Entity);
EntityData = static_cast<Int32>(Frame.GetProtocolFacing());
}
else if (a_Entity.IsFallingBlock())
{
const auto & Block = static_cast<const cFallingBlock &>(a_Entity);
EntityData = Block.GetBlockType() | (static_cast<Int32>(Block.GetBlockMeta()) << 12);
}
else if (a_Entity.IsFloater())
{
const auto & Floater = static_cast<const cFloater &>(a_Entity);
EntityData = static_cast<Int32>(Floater.GetOwnerID());
}
else if (a_Entity.IsProjectile())
{
using PType = cProjectileEntity::eKind;
const auto & Projectile = static_cast<const cProjectileEntity &>(a_Entity);
if (Projectile.GetProjectileKind() == PType::pkArrow)
{
const auto & Arrow = static_cast<const cArrowEntity &>(Projectile);
EntityData = static_cast<Int32>(Arrow.GetCreatorUniqueID() + 1);
}
}
SendEntitySpawn(a_Entity, EntityType, EntityData);
}
void cProtocol_1_8_0::SendSpawnMob(const cMonster & a_Mob)
{
ASSERT(m_State == 3); // In game mode?
const auto MobType = GetProtocolMobType(a_Mob.GetMobType());
// If the type is not valid in this protocol bail out:
if (MobType == 0)
{
return;
}
cPacketizer Pkt(*this, pktSpawnMob);
Pkt.WriteVarInt32(a_Mob.GetUniqueID());
Pkt.WriteBEUInt8(static_cast<Byte>(MobType));
Vector3d LastSentPos = a_Mob.GetLastSentPosition();
Pkt.WriteFPInt(LastSentPos.x);
Pkt.WriteFPInt(LastSentPos.y);
Pkt.WriteFPInt(LastSentPos.z);
Pkt.WriteByteAngle(a_Mob.GetHeadYaw()); // Doesn't seem to be used
Pkt.WriteByteAngle(a_Mob.GetPitch());
Pkt.WriteByteAngle(a_Mob.GetYaw());
Pkt.WriteBEInt16(static_cast<Int16>(a_Mob.GetSpeedX() * 400));
Pkt.WriteBEInt16(static_cast<Int16>(a_Mob.GetSpeedY() * 400));
Pkt.WriteBEInt16(static_cast<Int16>(a_Mob.GetSpeedZ() * 400));
WriteEntityMetadata(Pkt, a_Mob);
Pkt.WriteBEUInt8(0x7f); // Metadata terminator
}
void cProtocol_1_8_0::SendStatistics(const cStatManager & a_Manager)
{
ASSERT(m_State == 3); // In game mode?
UInt32 Size = 0;
a_Manager.ForEachStatisticType([&Size](const auto & Store)
{
Size += static_cast<UInt32>(Store.size());
});
// No need to check Size != 0
// Assume that the vast majority of the time there's at least one statistic to send
cPacketizer Pkt(*this, pktStatistics);
Pkt.WriteVarInt32(Size);
a_Manager.ForEachStatisticType([&Pkt](const cStatManager::CustomStore & Store)
{
for (const auto & Item : Store)
{
Pkt.WriteString(GetProtocolStatisticName(Item.first));
Pkt.WriteVarInt32(static_cast<UInt32>(Item.second));
}
});
}
void cProtocol_1_8_0::SendTabCompletionResults(const AStringVector & a_Results)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktTabCompletionResults);
Pkt.WriteVarInt32(static_cast<UInt32>(a_Results.size()));
for (AStringVector::const_iterator itr = a_Results.begin(), end = a_Results.end(); itr != end; ++itr)
{
Pkt.WriteString(*itr);
}
}
void cProtocol_1_8_0::SendThunderbolt(int a_BlockX, int a_BlockY, int a_BlockZ)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktSpawnGlobalEntity);
Pkt.WriteVarInt32(0); // EntityID = 0, always
Pkt.WriteBEUInt8(1); // Type = Thunderbolt
Pkt.WriteFPInt(a_BlockX);
Pkt.WriteFPInt(a_BlockY);
Pkt.WriteFPInt(a_BlockZ);
}
void cProtocol_1_8_0::SendTitleTimes(int a_FadeInTicks, int a_DisplayTicks, int a_FadeOutTicks)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktTitle);
Pkt.WriteVarInt32(2); // Set title display times
Pkt.WriteBEInt32(a_FadeInTicks);
Pkt.WriteBEInt32(a_DisplayTicks);
Pkt.WriteBEInt32(a_FadeOutTicks);
}
void cProtocol_1_8_0::SendTimeUpdate(Int64 a_WorldAge, Int64 a_WorldDate, bool a_DoDaylightCycle)
{
ASSERT(m_State == 3); // In game mode?
if (!a_DoDaylightCycle)
{
// Negating the date stops time from advancing on the client
// (the std::min construction is to handle the case where the date is exactly zero):
a_WorldDate = std::min(-a_WorldDate, -1LL);
}
cPacketizer Pkt(*this, pktTimeUpdate);
Pkt.WriteBEInt64(a_WorldAge);
Pkt.WriteBEInt64(a_WorldDate);
}
void cProtocol_1_8_0::SendUnloadChunk(int a_ChunkX, int a_ChunkZ)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktUnloadChunk);
Pkt.WriteBEInt32(a_ChunkX);
Pkt.WriteBEInt32(a_ChunkZ);
Pkt.WriteBool(true);
Pkt.WriteBEInt16(0); // Primary bitmap
Pkt.WriteVarInt32(0); // Data size
}
void cProtocol_1_8_0::SendUpdateBlockEntity(cBlockEntity & a_BlockEntity)
{
ASSERT(m_State == 3); // In game mode?
Byte Action;
switch (a_BlockEntity.GetBlockType())
{
case E_BLOCK_ENCHANTMENT_TABLE: Action = 0; break; // The ones with a action of 0 is just a workaround to send the block entities to a client.
case E_BLOCK_END_PORTAL: Action = 0; break; // Todo: 18.09.2020 - remove this when block entities are transmitted in the ChunkData packet - 12xx12
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_WALL_BANNER:
case E_BLOCK_STANDING_BANNER: Action = 6; break; // Update banner
default: return; // Block entities change between versions
}
cPacketizer Pkt(*this, pktUpdateBlockEntity);
Pkt.WriteXYZPosition64(a_BlockEntity.GetPosX(), a_BlockEntity.GetPosY(), a_BlockEntity.GetPosZ());
Pkt.WriteBEUInt8(Action);
cFastNBTWriter Writer;
WriteBlockEntity(Writer, a_BlockEntity);
Writer.Finish();
Pkt.WriteBuf(Writer.GetResult());
}
void cProtocol_1_8_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, pktUpdateSign);
Pkt.WriteXYZPosition64(a_BlockX, a_BlockY, a_BlockZ);
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(JsonUtils::WriteFastString(RootValue));
}
}
void cProtocol_1_8_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, pktUseBed);
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteXYZPosition64(a_BlockX, a_BlockY, a_BlockZ);
}
void cProtocol_1_8_0::SendUnlockRecipe(UInt32 a_RecipeID)
{
// Client doesn't support this feature
return;
}
void cProtocol_1_8_0::SendInitRecipes(UInt32 a_RecipeID)
{
// Client doesn't support this feature
return;
}
void cProtocol_1_8_0::SendWeather(eWeather a_Weather)
{
ASSERT(m_State == 3); // In game mode?
{
cPacketizer Pkt(*this, pktWeather);
Pkt.WriteBEUInt8((a_Weather == wSunny) ? 1 : 2); // End rain / begin rain
Pkt.WriteBEFloat(0); // Unused for weather
}
// TODO: Fade effect, somehow
}
void cProtocol_1_8_0::SendWholeInventory(const cWindow & a_Window)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktWindowItems);
Pkt.WriteBEUInt8(static_cast<UInt8>(a_Window.GetWindowID()));
Pkt.WriteBEInt16(static_cast<Int16>(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_8_0::SendWindowClose(const cWindow & a_Window)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktWindowClose);
Pkt.WriteBEUInt8(static_cast<UInt8>(a_Window.GetWindowID()));
}
void cProtocol_1_8_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, pktWindowOpen);
Pkt.WriteBEUInt8(static_cast<UInt8>(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.WriteBEUInt8(0);
break;
}
default:
{
Pkt.WriteBEUInt8(static_cast<UInt8>(a_Window.GetNumNonInventorySlots()));
break;
}
}
if (a_Window.GetWindowType() == cWindow::wtAnimalChest)
{
UInt32 HorseID = static_cast<const cHorseWindow &>(a_Window).GetHorseID();
Pkt.WriteBEInt32(static_cast<Int32>(HorseID));
}
}
void cProtocol_1_8_0::SendWindowProperty(const cWindow & a_Window, size_t a_Property, short a_Value)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, pktWindowProperty);
Pkt.WriteBEUInt8(static_cast<UInt8>(a_Window.GetWindowID()));
Pkt.WriteBEInt16(static_cast<Int16>(a_Property));
Pkt.WriteBEInt16(a_Value);
}
void cProtocol_1_8_0::CompressPacket(CircularBufferCompressor & a_Packet, ContiguousByteBuffer & a_CompressedData)
{
const auto Uncompressed = a_Packet.GetView();
if (Uncompressed.size() < CompressionThreshold)
{
/* Size doesn't reach threshold, not worth compressing.
--------------- Packet format ----------------
|--- Header ---------------------------------|
| PacketSize: Size of all fields below |
| DataSize: Zero, means below not compressed |
|--- Body -----------------------------------|
| a_Packet: copy of uncompressed data |
----------------------------------------------
*/
const UInt32 DataSize = 0;
const auto PacketSize = static_cast<UInt32>(cByteBuffer::GetVarIntSize(DataSize) + Uncompressed.size());
cByteBuffer LengthHeaderBuffer(
cByteBuffer::GetVarIntSize(PacketSize) +
cByteBuffer::GetVarIntSize(DataSize)
);
LengthHeaderBuffer.WriteVarInt32(PacketSize);
LengthHeaderBuffer.WriteVarInt32(DataSize);
ContiguousByteBuffer LengthData;
LengthHeaderBuffer.ReadAll(LengthData);
a_CompressedData.reserve(LengthData.size() + Uncompressed.size());
a_CompressedData = LengthData;
a_CompressedData += Uncompressed;
return;
}
/* Definitely worth compressing.
--------------- Packet format ----------------
|--- Header ---------------------------------|
| PacketSize: Size of all fields below |
| DataSize: Size of uncompressed a_Packet |
|--- Body -----------------------------------|
| CompressedData: compressed a_Packet |
----------------------------------------------
*/
const auto CompressedData = a_Packet.Compress();
const auto Compressed = CompressedData.GetView();
const UInt32 DataSize = static_cast<UInt32>(Uncompressed.size());
const auto PacketSize = static_cast<UInt32>(cByteBuffer::GetVarIntSize(DataSize) + Compressed.size());
cByteBuffer LengthHeaderBuffer(
cByteBuffer::GetVarIntSize(PacketSize) +
cByteBuffer::GetVarIntSize(DataSize)
);
LengthHeaderBuffer.WriteVarInt32(PacketSize);
LengthHeaderBuffer.WriteVarInt32(DataSize);
ContiguousByteBuffer LengthData;
LengthHeaderBuffer.ReadAll(LengthData);
a_CompressedData.reserve(LengthData.size() + Compressed.size());
a_CompressedData = LengthData;
a_CompressedData += Compressed;
}
int cProtocol_1_8_0::GetParticleID(const AString & a_ParticleName)
{
static const std::unordered_map<AString, int> ParticleMap
{
// Initialize the ParticleMap:
{ "explode", 0 },
{ "largeexplode", 1 },
{ "hugeexplosion", 2 },
{ "fireworksspark", 3 },
{ "bubble", 4 },
{ "splash", 5 },
{ "wake", 6 },
{ "suspended", 7 },
{ "depthsuspend", 8 },
{ "crit", 9 },
{ "magiccrit", 10 },
{ "smoke", 11 },
{ "largesmoke", 12 },
{ "spell", 13 },
{ "instantspell", 14 },
{ "mobspell", 15 },
{ "mobspellambient", 16 },
{ "witchmagic", 17 },
{ "dripwater", 18 },
{ "driplava", 19 },
{ "angryvillager", 20 },
{ "happyvillager", 21 },
{ "townaura", 22 },
{ "note", 23 },
{ "portal", 24 },
{ "enchantmenttable", 25 },
{ "flame", 26 },
{ "lava", 27 },
{ "footstep", 28 },
{ "cloud", 29 },
{ "reddust", 30 },
{ "snowballpoof", 31 },
{ "snowshovel", 32 },
{ "slime", 33 },
{ "heart", 34 },
{ "barrier", 35 },
{ "iconcrack", 36 },
{ "blockcrack", 37 },
{ "blockdust", 38 },
{ "droplet", 39 },
{ "take", 40 },
{ "mobappearance", 41 },
{ "dragonbreath", 42 },
{ "endrod", 43 },
{ "damageindicator", 44 },
{ "sweepattack", 45 },
{ "fallingdust", 46 },
{ "totem", 47 },
{ "spit", 48 }
};
const auto ParticleName = StrToLower(a_ParticleName);
const auto FindResult = ParticleMap.find(ParticleName);
if (FindResult == ParticleMap.end())
{
LOGWARNING("Unknown particle: %s", a_ParticleName.c_str());
ASSERT(!"Unknown particle");
return 0;
}
return FindResult->second;
}
UInt32 cProtocol_1_8_0::GetProtocolMobType(const eMonsterType a_MobType)
{
switch (a_MobType)
{
// Map invalid type to Giant for easy debugging (if this ever spawns, something has gone very wrong)
case mtInvalidType: return 53;
case mtBat: return 65;
case mtBlaze: return 61;
case mtCaveSpider: return 59;
case mtChicken: return 93;
case mtCow: return 92;
case mtCreeper: return 50;
case mtEnderDragon: return 63;
case mtEnderman: return 58;
case mtEndermite: return 67;
case mtGhast: return 56;
case mtGiant: return 53;
case mtGuardian: return 68;
case mtHorse: return 100;
case mtIronGolem: return 99;
case mtMagmaCube: return 62;
case mtMooshroom: return 96;
case mtOcelot: return 98;
case mtPig: return 90;
case mtRabbit: return 101;
case mtSheep: return 91;
case mtSilverfish: return 60;
case mtSkeleton: return 51;
case mtSlime: return 55;
case mtSnowGolem: return 97;
case mtSpider: return 52;
case mtSquid: return 94;
case mtVillager: return 120;
case mtWitch: return 66;
case mtWither: return 64;
case mtWitherSkeleton: return 51;
case mtWolf: return 95;
case mtZombie: return 54;
case mtZombiePigman: return 57;
case mtZombieVillager: return 27;
// Mobs that get replaced with another because they were added later
case mtCat: return GetProtocolMobType(mtOcelot);
case mtDonkey: return GetProtocolMobType(mtHorse);
case mtMule: return GetProtocolMobType(mtHorse);
case mtSkeletonHorse: return GetProtocolMobType(mtHorse);
case mtZombieHorse: return GetProtocolMobType(mtHorse);
case mtStray: return GetProtocolMobType(mtSkeleton);
case mtHusk: return GetProtocolMobType(mtZombie);
default: return 0;
}
}
UInt32 cProtocol_1_8_0::GetPacketID(ePacketType a_PacketType)
{
switch (a_PacketType)
{
case pktAttachEntity: return 0x1b;
case pktBlockAction: return 0x24;
case pktBlockBreakAnim: return 0x25;
case pktBlockChange: return 0x23;
case pktBlockChanges: return 0x22;
case pktCameraSetTo: return 0x43;
case pktChatRaw: return 0x02;
case pktCollectEntity: return 0x0d;
case pktDestroyEntity: return 0x13;
case pktDifficulty: return 0x41;
case pktDisconnectDuringGame: return 0x40;
case pktDisconnectDuringLogin: return 0x00;
case pktDisplayObjective: return 0x3d;
case pktEditSign: return 0x36;
case pktEncryptionRequest: return 0x01;
case pktEntityAnimation: return 0x0b;
case pktEntityEffect: return 0x1d;
case pktEntityEquipment: return 0x04;
case pktEntityHeadLook: return 0x19;
case pktEntityLook: return 0x16;
case pktEntityMeta: return 0x1c;
case pktEntityProperties: return 0x20;
case pktEntityRelMove: return 0x15;
case pktEntityRelMoveLook: return 0x17;
case pktEntityStatus: return 0x1a;
case pktEntityVelocity: return 0x12;
case pktExperience: return 0x1f;
case pktExplosion: return 0x27;
case pktGameMode: return 0x2b;
case pktHeldItemChange: return 0x09;
case pktInventorySlot: return 0x2f;
case pktJoinGame: return 0x01;
case pktKeepAlive: return 0x00;
case pktLeashEntity: return 0x1b;
case pktLoginSuccess: return 0x02;
case pktMapData: return 0x34;
case pktParticleEffect: return 0x2a;
case pktPingResponse: return 0x01;
case pktPlayerAbilities: return 0x39;
case pktPlayerList: return 0x38;
case pktPlayerListHeaderFooter: return 0x47;
case pktPlayerMoveLook: return 0x08;
case pktPluginMessage: return 0x3f;
case pktRemoveEntityEffect: return 0x1e;
case pktResourcePack: return 0x48;
case pktRespawn: return 0x07;
case pktScoreboardObjective: return 0x3b;
case pktSoundEffect: return 0x29;
case pktSoundParticleEffect: return 0x28;
case pktSpawnExperienceOrb: return 0x11;
case pktSpawnGlobalEntity: return 0x2c;
case pktSpawnMob: return 0x0f;
case pktSpawnObject: return 0x0e;
case pktSpawnOtherPlayer: return 0x0c;
case pktSpawnPainting: return 0x10;
case pktSpawnPosition: return 0x05;
case pktStartCompression: return 0x03;
case pktStatistics: return 0x37;
case pktStatusResponse: return 0x00;
case pktTabCompletionResults: return 0x3a;
case pktTeleportEntity: return 0x18;
case pktTimeUpdate: return 0x03;
case pktTitle: return 0x45;
case pktUnloadChunk: return 0x21;
case pktUpdateBlockEntity: return 0x35;
case pktUpdateHealth: return 0x06;
case pktUpdateScore: return 0x3c;
case pktUpdateSign: return 0x33;
case pktUseBed: return 0x0a;
case pktWeather: return 0x2b;
case pktWindowClose: return 0x2e;
case pktWindowItems: return 0x30;
case pktWindowOpen: return 0x2d;
case pktWindowProperty: return 0x31;
default:
{
LOG("Unhandled outgoing packet type: %s (0x%02x)", cPacketizer::PacketTypeToStr(a_PacketType), a_PacketType);
ASSERT(!"Unhandled outgoing packet type");
return 0;
}
}
}
cProtocol::Version cProtocol_1_8_0::GetProtocolVersion()
{
return Version::v1_8_0;
}
bool cProtocol_1_8_0::HandlePacket(cByteBuffer & a_ByteBuffer, UInt32 a_PacketType)
{
switch (m_State)
{
case State::Status:
{
switch (a_PacketType)
{
case 0x00: HandlePacketStatusRequest(a_ByteBuffer); return true;
case 0x01: HandlePacketStatusPing (a_ByteBuffer); return true;
}
break;
}
case State::Login:
{
switch (a_PacketType)
{
case 0x00: HandlePacketLoginStart (a_ByteBuffer); return true;
case 0x01: HandlePacketLoginEncryptionResponse(a_ByteBuffer); return true;
}
break;
}
case State::Game:
{
switch (a_PacketType)
{
case 0x00: HandlePacketKeepAlive (a_ByteBuffer); return true;
case 0x01: HandlePacketChatMessage (a_ByteBuffer); return true;
case 0x02: HandlePacketUseEntity (a_ByteBuffer); return true;
case 0x03: HandlePacketPlayer (a_ByteBuffer); return true;
case 0x04: HandlePacketPlayerPos (a_ByteBuffer); return true;
case 0x05: HandlePacketPlayerLook (a_ByteBuffer); return true;
case 0x06: HandlePacketPlayerPosLook (a_ByteBuffer); return true;
case 0x07: HandlePacketBlockDig (a_ByteBuffer); return true;
case 0x08: HandlePacketBlockPlace (a_ByteBuffer); return true;
case 0x09: HandlePacketSlotSelect (a_ByteBuffer); return true;
case 0x0a: HandlePacketAnimation (a_ByteBuffer); return true;
case 0x0b: HandlePacketEntityAction (a_ByteBuffer); return true;
case 0x0c: HandlePacketSteerVehicle (a_ByteBuffer); return true;
case 0x0d: HandlePacketWindowClose (a_ByteBuffer); return true;
case 0x0e: HandlePacketWindowClick (a_ByteBuffer); return true;
case 0x0f: // Confirm transaction - not used in MCS
case 0x10: HandlePacketCreativeInventoryAction(a_ByteBuffer); return true;
case 0x11: HandlePacketEnchantItem (a_ByteBuffer); return true;
case 0x12: HandlePacketUpdateSign (a_ByteBuffer); return true;
case 0x13: HandlePacketPlayerAbilities (a_ByteBuffer); return true;
case 0x14: HandlePacketTabComplete (a_ByteBuffer); return true;
case 0x15: HandlePacketClientSettings (a_ByteBuffer); return true;
case 0x16: HandlePacketClientStatus (a_ByteBuffer); return true;
case 0x17: HandlePacketPluginMessage (a_ByteBuffer); return true;
case 0x18: HandlePacketSpectate (a_ByteBuffer); return true;
case 0x19: HandlePacketResourcePackStatus (a_ByteBuffer); return true;
}
break;
}
} // switch (m_State)
// Unknown packet type, report to the ClientHandle:
m_Client->PacketUnknown(a_PacketType);
return false;
}
void cProtocol_1_8_0::HandlePacketStatusPing(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBEInt64, Int64, Timestamp);
cPacketizer Pkt(*this, pktPingResponse);
Pkt.WriteBEInt64(Timestamp);
}
void cProtocol_1_8_0::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer)
{
cServer * Server = cRoot::Get()->GetServer();
AString ServerDescription = Server->GetDescription();
auto NumPlayers = static_cast<signed>(Server->GetNumPlayers());
auto MaxPlayers = static_cast<signed>(Server->GetMaxPlayers());
AString Favicon = Server->GetFaviconData();
cRoot::Get()->GetPluginManager()->CallHookServerPing(*m_Client, ServerDescription, NumPlayers, MaxPlayers, Favicon);
// Version:
Json::Value Version;
const auto ProtocolVersion = GetProtocolVersion();
Version["name"] = "Cuberite " + cMultiVersionProtocol::GetVersionTextFromInt(ProtocolVersion);
Version["protocol"] = static_cast<std::underlying_type_t<cProtocol::Version>>(ProtocolVersion);
// 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;
m_Client->ForgeAugmentServerListPing(ResponseValue);
if (!Favicon.empty())
{
ResponseValue["favicon"] = Printf("data:image/png;base64,%s", Favicon.c_str());
}
// Serialize the response into a packet:
cPacketizer Pkt(*this, pktStatusResponse);
Pkt.WriteString(JsonUtils::WriteFastString(ResponseValue));
}
void cProtocol_1_8_0::HandlePacketLoginEncryptionResponse(cByteBuffer & a_ByteBuffer)
{
UInt32 EncKeyLength, EncNonceLength;
if (!a_ByteBuffer.ReadVarInt(EncKeyLength))
{
return;
}
ContiguousByteBuffer EncKey;
if (!a_ByteBuffer.ReadSome(EncKey, EncKeyLength))
{
return;
}
if (!a_ByteBuffer.ReadVarInt(EncNonceLength))
{
return;
}
ContiguousByteBuffer EncNonce;
if (!a_ByteBuffer.ReadSome(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(EncNonce, reinterpret_cast<Byte *>(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<unsigned>(reinterpret_cast<uintptr_t>(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(EncKey, DecryptedKey, sizeof(DecryptedKey));
if (res != 16)
{
LOGD("Bad key length");
m_Client->Kick("Hacked client");
return;
}
StartEncryption(DecryptedKey);
m_Client->HandleLogin();
}
void cProtocol_1_8_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;
}
m_Client->SetUsername(std::move(Username));
// If auth is required, then send the encryption request:
if (const auto Server = cRoot::Get()->GetServer(); Server->ShouldAuthenticate())
{
cPacketizer Pkt(*this, pktEncryptionRequest);
Pkt.WriteString(Server->GetServerID());
const auto PubKeyDer = Server->GetPublicKeyDER();
Pkt.WriteVarInt32(static_cast<UInt32>(PubKeyDer.size()));
Pkt.WriteBuf(PubKeyDer);
Pkt.WriteVarInt32(4);
Pkt.WriteBEInt32(static_cast<int>(reinterpret_cast<intptr_t>(this))); // Using 'this' as the cryptographic nonce, so that we don't have to generate one each time :)
return;
}
m_Client->HandleLogin();
}
void cProtocol_1_8_0::HandlePacketAnimation(cByteBuffer & a_ByteBuffer)
{
m_Client->HandleAnimation(0); // Packet exists solely for arm-swing notification
}
void cProtocol_1_8_0::HandlePacketBlockDig(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Status);
int BlockX, BlockY, BlockZ;
if (!a_ByteBuffer.ReadXYZPosition64(BlockX, BlockY, BlockZ))
{
return;
}
HANDLE_READ(a_ByteBuffer, ReadBEInt8, Int8, Face);
m_Client->HandleLeftClick(BlockX, BlockY, BlockZ, FaceIntToBlockFace(Face), Status);
}
void cProtocol_1_8_0::HandlePacketBlockPlace(cByteBuffer & a_ByteBuffer)
{
int BlockX, BlockY, BlockZ;
if (!a_ByteBuffer.ReadXYZPosition64(BlockX, BlockY, BlockZ))
{
return;
}
HANDLE_READ(a_ByteBuffer, ReadBEInt8, Int8, Face);
cItem Item; // Ignored
ReadItem(a_ByteBuffer, Item, 3);
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, CursorX);
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, CursorY);
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, CursorZ);
eBlockFace blockFace = FaceIntToBlockFace(Face);
if (blockFace == eBlockFace::BLOCK_FACE_NONE)
{
m_Client->HandleUseItem(eHand::hMain);
}
else
{
m_Client->HandleRightClick(BlockX, BlockY, BlockZ, blockFace, CursorX, CursorY, CursorZ, eHand::hMain);
}
}
void cProtocol_1_8_0::HandlePacketChatMessage(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Message);
m_Client->HandleChat(Message);
}
void cProtocol_1_8_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);
m_Client->SetLocale(Locale);
m_Client->SetViewDistance(ViewDistance);
m_Client->GetPlayer()->SetSkinParts(SkinParts);
// TODO: Handle chat flags and chat colors
}
void cProtocol_1_8_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(Statistic::AchOpenInventory);
break;
}
}
}
void cProtocol_1_8_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_8_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);
if (PlayerID != m_Client->GetPlayer()->GetUniqueID())
{
m_Client->Kick("Mind your own business! Hacked client?");
return;
}
switch (Action)
{
case 0: return m_Client->HandleCrouch(true);
case 1: return m_Client->HandleCrouch(false);
case 2: return m_Client->HandleLeaveBed();
case 3: return m_Client->HandleSprint(true);
case 4: return m_Client->HandleSprint(false);
case 6: return m_Client->HandleOpenHorseInventory();
}
}
void cProtocol_1_8_0::HandlePacketKeepAlive(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, KeepAliveID);
m_Client->HandleKeepAlive(KeepAliveID);
}
void cProtocol_1_8_0::HandlePacketPlayer(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBool, bool, IsOnGround);
// TODO: m_Client->HandlePlayerOnGround(IsOnGround);
}
void cProtocol_1_8_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;
if ((Flags & 2) != 0)
{
IsFlying = true;
}
m_Client->HandlePlayerAbilities(IsFlying, FlyingSpeed, WalkingSpeed);
}
void cProtocol_1_8_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_8_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);
m_Client->HandlePlayerPos(PosX, PosY, PosZ, IsOnGround);
}
void cProtocol_1_8_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);
m_Client->HandlePlayerMoveLook(PosX, PosY, PosZ, Yaw, Pitch, IsOnGround);
}
void cProtocol_1_8_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() > 0)
{
LOGD("Protocol 1.8: Skipping garbage data at the end of a vanilla PluginMessage packet, %u bytes",
static_cast<unsigned>(a_ByteBuffer.GetReadableSpace())
);
a_ByteBuffer.SkipRead(a_ByteBuffer.GetReadableSpace());
}
return;
}
// Read the plugin message and relay to clienthandle:
ContiguousByteBuffer Data;
VERIFY(a_ByteBuffer.ReadSome(Data, a_ByteBuffer.GetReadableSpace())); // Always succeeds
m_Client->HandlePluginMessage(Channel, Data);
}
void cProtocol_1_8_0::HandlePacketResourcePackStatus(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Hash);
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Status);
}
void cProtocol_1_8_0::HandlePacketSlotSelect(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBEInt16, Int16, SlotNum);
m_Client->HandleSlotSelected(SlotNum);
}
void cProtocol_1_8_0::HandlePacketSpectate(cByteBuffer &a_ByteBuffer)
{
cUUID playerUUID;
if (!a_ByteBuffer.ReadUUID(playerUUID))
{
return;
}
m_Client->HandleSpectate(playerUUID);
}
void cProtocol_1_8_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)
{
// jump
}
else
{
m_Client->HandleSteerVehicle(Forward, Sideways);
}
}
void cProtocol_1_8_0::HandlePacketTabComplete(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Text);
HANDLE_READ(a_ByteBuffer, ReadBool, bool, HasPosition);
if (HasPosition)
{
HANDLE_READ(a_ByteBuffer, ReadBEInt64, Int64, Position);
}
m_Client->HandleTabCompletion(Text);
}
void cProtocol_1_8_0::HandlePacketUpdateSign(cByteBuffer & a_ByteBuffer)
{
int BlockX, BlockY, BlockZ;
if (!a_ByteBuffer.ReadXYZPosition64(BlockX, BlockY, BlockZ))
{
return;
}
AString Lines[4];
Json::Value root;
for (int i = 0; i < 4; i++)
{
HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Line);
if (JsonUtils::ParseString(Line, root) && root.isString())
{
Lines[i] = root.asString();
}
}
m_Client->HandleUpdateSign(BlockX, BlockY, BlockZ, Lines[0], Lines[1], Lines[2], Lines[3]);
}
void cProtocol_1_8_0::HandlePacketUseEntity(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, EntityID);
HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, Type);
switch (Type)
{
case 0:
{
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);
// TODO: Do anything
break;
}
default:
{
ASSERT(!"Unhandled use entity type!");
return;
}
}
}
void cProtocol_1_8_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_8_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, ReadBEUInt8, UInt8, Mode);
cItem Item;
ReadItem(a_ByteBuffer, Item);
/** The slot number that the client uses to indicate "outside the window". */
static const Int16 SLOT_NUM_OUTSIDE = -999;
// 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_8_0::HandlePacketWindowClose(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, WindowID);
m_Client->HandleWindowClose(WindowID);
}
void cProtocol_1_8_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:
m_Client->SendPluginMessage("MC|Brand", "\x08""Cuberite");
return;
}
else if (a_Channel == "MC|Beacon")
{
HANDLE_READ(a_ByteBuffer, ReadBEUInt32, UInt32, Effect1);
HANDLE_READ(a_ByteBuffer, ReadBEUInt32, UInt32, 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;
}
LOG("Unhandled vanilla plugin channel: \"%s\".", a_Channel.c_str());
// Read the payload and send it through to the clienthandle:
ContiguousByteBuffer Message;
VERIFY(a_ByteBuffer.ReadSome(Message, a_ByteBuffer.GetReadableSpace() - 1));
m_Client->HandlePluginMessage(a_Channel, Message);
}
void cProtocol_1_8_0::SendData(ContiguousByteBufferView a_Data)
{
if (m_IsEncrypted)
{
std::byte Encrypted[8 KiB]; // Larger buffer, we may be sending lots of data (chunks)
while (a_Data.size() > 0)
{
const auto NumBytes = (a_Data.size() > sizeof(Encrypted)) ? sizeof(Encrypted) : a_Data.size();
m_Encryptor.ProcessData(Encrypted, a_Data.data(), NumBytes);
m_Client->SendData({ Encrypted, NumBytes });
a_Data = a_Data.substr(NumBytes);
}
}
else
{
m_Client->SendData(a_Data);
}
}
bool cProtocol_1_8_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();
}
ContiguousByteBuffer Metadata;
if (!a_ByteBuffer.ReadSome(Metadata, a_ByteBuffer.GetReadableSpace() - a_KeepRemainingBytes) || Metadata.empty() || (Metadata[0] == std::byte(0)))
{
// No metadata
return true;
}
ParseItemMetadata(a_Item, Metadata);
return true;
}
void cProtocol_1_8_0::ParseItemMetadata(cItem & a_Item, const ContiguousByteBufferView a_Metadata)
{
// Parse into NBT:
cParsedNBT NBT(a_Metadata);
if (!NBT.IsValid())
{
AString HexDump;
CreateHexDump(HexDump, a_Metadata.data(), std::max<size_t>(a_Metadata.size(), 1024), 16);
LOGWARNING("Cannot parse NBT item metadata: %s at (%zu / %zu 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
{
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<unsigned int>(NBT.GetInt(displaytag));
}
}
}
else if ((TagName == "Fireworks") || (TagName == "Explosion"))
{
cFireworkItem::ParseFromNBT(a_Item.m_FireworkItem, NBT, tag, static_cast<ENUM_ITEM_TYPE>(a_Item.m_ItemType));
}
break;
}
case TAG_Int:
{
if (TagName == "RepairCost")
{
a_Item.m_RepairCost = NBT.GetInt(tag);
}
}
default: LOGD("Unimplemented NBT data when parsing!"); break;
}
}
}
void cProtocol_1_8_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<const Byte *>(ServerID.c_str()), ServerID.length());
Checksum.Update(a_Key, 16);
Checksum.Update(reinterpret_cast<const Byte *>(Server->GetPublicKeyDER().data()), Server->GetPublicKeyDER().size());
Byte Digest[20];
Checksum.Finalize(Digest);
cSha1Checksum::DigestToJava(Digest, m_AuthServerID);
}
eBlockFace cProtocol_1_8_0::FaceIntToBlockFace(const 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_8_0::cPacketizer:
void cProtocol_1_8_0::SendPacket(cPacketizer & a_Pkt)
{
ASSERT(m_OutPacketBuffer.GetReadableSpace() == m_OutPacketBuffer.GetUsedSpace());
m_Compressor.ReadFrom(m_OutPacketBuffer);
m_OutPacketBuffer.CommitRead();
const auto PacketData = m_Compressor.GetView();
if (m_State == 3)
{
ContiguousByteBuffer CompressedPacket;
// Compress the packet payload:
cProtocol_1_8_0::CompressPacket(m_Compressor, CompressedPacket);
// Send the packet's payload compressed:
SendData(CompressedPacket);
}
else
{
// Compression doesn't apply to this state, send raw data:
m_OutPacketLenBuffer.WriteVarInt32(static_cast<UInt32>(PacketData.size()));
ContiguousByteBuffer LengthData;
m_OutPacketLenBuffer.ReadAll(LengthData);
m_OutPacketLenBuffer.CommitRead();
SendData(LengthData);
// Send the packet's payload directly:
SendData(PacketData);
}
// 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 %s (translated to 0x%02x), length %u (0x%04x), state %d. Payload (incl. type):\n%s\n",
cPacketizer::PacketTypeToStr(a_Pkt.GetPacketType()), GetPacketID(a_Pkt.GetPacketType()),
PacketData.size(), PacketData.size(), m_State, Hex
);
/*
// Useful for debugging a new protocol:
LOGD("Outgoing packet: type %s (translated to 0x%02x), length %u (0x%04x), state %d. Payload (incl. type):\n%s\n",
cPacketizer::PacketTypeToStr(a_Pkt.GetPacketType()), GetPacketID(a_Pkt.GetPacketType()),
PacketLen, PacketLen, m_State, Hex
);
//*/
}
/*
// Useful for debugging a new protocol:
std::this_thread::sleep_for(std::chrono::milliseconds(100));
*/
}
void cProtocol_1_8_0::SendEntitySpawn(const cEntity & a_Entity, const UInt8 a_ObjectType, const Int32 a_ObjectData)
{
ASSERT(m_State == 3); // In game mode?
{
cPacketizer Pkt(*this, pktSpawnObject);
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteBEUInt8(a_ObjectType);
Pkt.WriteFPInt(a_Entity.GetPosX()); // Position appears to be ignored...
Pkt.WriteFPInt(a_Entity.GetPosY());
Pkt.WriteFPInt(a_Entity.GetPosY());
Pkt.WriteByteAngle(a_Entity.GetPitch());
Pkt.WriteByteAngle(a_Entity.GetYaw());
Pkt.WriteBEInt32(a_ObjectData);
if (a_ObjectData != 0)
{
Pkt.WriteBEInt16(static_cast<Int16>(a_Entity.GetSpeedX() * 400));
Pkt.WriteBEInt16(static_cast<Int16>(a_Entity.GetSpeedY() * 400));
Pkt.WriteBEInt16(static_cast<Int16>(a_Entity.GetSpeedZ() * 400));
}
}
// Otherwise 1.8 clients don't show the entity
SendEntityTeleport(a_Entity);
}
void cProtocol_1_8_0::WriteBlockEntity(cFastNBTWriter & a_Writer, const cBlockEntity & a_BlockEntity)
{
a_Writer.AddInt("x", a_BlockEntity.GetPosX());
a_Writer.AddInt("y", a_BlockEntity.GetPosY());
a_Writer.AddInt("z", a_BlockEntity.GetPosZ());
switch (a_BlockEntity.GetBlockType())
{
case E_BLOCK_WALL_BANNER:
case E_BLOCK_STANDING_BANNER:
{
auto & BannerEntity = static_cast<const cBannerEntity &>(a_BlockEntity);
a_Writer.AddInt("Base", static_cast<Int32>(BannerEntity.GetBaseColor()));
break;
}
case E_BLOCK_BEACON:
{
auto & BeaconEntity = static_cast<const cBeaconEntity &>(a_BlockEntity);
a_Writer.AddInt("Primary", BeaconEntity.GetPrimaryEffect());
a_Writer.AddInt("Secondary", BeaconEntity.GetSecondaryEffect());
a_Writer.AddInt("Levels", BeaconEntity.GetBeaconLevel());
break;
}
case E_BLOCK_COMMAND_BLOCK:
{
auto & CommandBlockEntity = static_cast<const cCommandBlockEntity &>(a_BlockEntity);
a_Writer.AddByte("TrackOutput", 1); // Neither I nor the MC wiki has any idea about this
a_Writer.AddInt("SuccessCount", CommandBlockEntity.GetResult());
a_Writer.AddString("Command", CommandBlockEntity.GetCommand());
// 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?)
a_Writer.AddString("CustomName", "@");
if (!CommandBlockEntity.GetLastOutput().empty())
{
a_Writer.AddString("LastOutput", Printf("{\"text\":\"%s\"}", CommandBlockEntity.GetLastOutput().c_str()));
}
break;
}
case E_BLOCK_ENCHANTMENT_TABLE:
{
auto & EnchantingTableEntity = static_cast<const cEnchantingTableEntity &>(a_BlockEntity);
if (!EnchantingTableEntity.GetCustomName().empty())
{
a_Writer.AddString("CustomName", EnchantingTableEntity.GetCustomName());
}
break;
}
case E_BLOCK_END_PORTAL:
{
// Nothing!
break;
}
case E_BLOCK_HEAD:
{
auto & MobHeadEntity = static_cast<const cMobHeadEntity &>(a_BlockEntity);
a_Writer.AddByte("SkullType", MobHeadEntity.GetType() & 0xFF);
a_Writer.AddByte("Rot", MobHeadEntity.GetRotation() & 0xFF);
// The new Block Entity format for a Mob Head. See: https://minecraft.gamepedia.com/Head#Block_entity
a_Writer.BeginCompound("Owner");
a_Writer.AddString("Id", MobHeadEntity.GetOwnerUUID().ToShortString());
a_Writer.AddString("Name", MobHeadEntity.GetOwnerName());
a_Writer.BeginCompound("Properties");
a_Writer.BeginList("textures", TAG_Compound);
a_Writer.BeginCompound("");
a_Writer.AddString("Signature", MobHeadEntity.GetOwnerTextureSignature());
a_Writer.AddString("Value", MobHeadEntity.GetOwnerTexture());
a_Writer.EndCompound();
a_Writer.EndList();
a_Writer.EndCompound();
a_Writer.EndCompound();
break;
}
case E_BLOCK_FLOWER_POT:
{
auto & FlowerPotEntity = static_cast<const cFlowerPotEntity &>(a_BlockEntity);
a_Writer.AddInt("Item", static_cast<Int32>(FlowerPotEntity.GetItem().m_ItemType));
a_Writer.AddInt("Data", static_cast<Int32>(FlowerPotEntity.GetItem().m_ItemDamage));
break;
}
case E_BLOCK_MOB_SPAWNER:
{
auto & MobSpawnerEntity = static_cast<const cMobSpawnerEntity &>(a_BlockEntity);
a_Writer.AddString("EntityId", cMonster::MobTypeToVanillaName(MobSpawnerEntity.GetEntity()));
a_Writer.AddShort("Delay", MobSpawnerEntity.GetSpawnDelay());
break;
}
default:
{
break;
}
}
}
void cProtocol_1_8_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;
}
a_Pkt.WriteBEInt16(ItemType);
a_Pkt.WriteBEInt8(a_Item.m_ItemCount);
a_Pkt.WriteBEInt16(a_Item.m_ItemDamage);
if (a_Item.m_Enchantments.IsEmpty() && a_Item.IsBothNameAndLoreEmpty() && (a_Item.m_ItemType != E_ITEM_FIREWORK_ROCKET) && (a_Item.m_ItemType != E_ITEM_FIREWORK_STAR) && !a_Item.m_ItemColor.IsValid())
{
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<Int32>(a_Item.m_ItemColor.m_Color));
}
if (!a_Item.IsCustomNameEmpty())
{
Writer.AddString("Name", a_Item.m_CustomName);
}
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<ENUM_ITEM_TYPE>(a_Item.m_ItemType));
}
Writer.Finish();
const auto Result = Writer.GetResult();
if (Result.empty())
{
a_Pkt.WriteBEInt8(0);
return;
}
a_Pkt.WriteBuf(Result);
}
void cProtocol_1_8_0::WriteEntityMetadata(cPacketizer & a_Pkt, const cEntity & a_Entity)
{
// Common metadata:
Byte 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;
}
if (a_Entity.IsElytraFlying())
{
Flags |= 0x80;
}
a_Pkt.WriteBEUInt8(0); // Byte(0) + index 0
a_Pkt.WriteBEUInt8(Flags);
switch (a_Entity.GetEntityType())
{
case cEntity::etPlayer:
{
auto & Player = static_cast<const cPlayer &>(a_Entity);
// Player health (not handled since players aren't monsters)
a_Pkt.WriteBEUInt8(0x66);
a_Pkt.WriteBEFloat(static_cast<float>(Player.GetHealth()));
// Skin flags
a_Pkt.WriteBEUInt8(0x0A);
a_Pkt.WriteBEUInt8(static_cast<UInt8>(Player.GetSkinParts()));
break;
}
case cEntity::etPickup:
{
a_Pkt.WriteBEUInt8((5 << 5) | 10); // Slot(5) + index 10
WriteItem(a_Pkt, static_cast<const cPickup &>(a_Entity).GetItem());
break;
}
case cEntity::etMinecart:
{
a_Pkt.WriteBEUInt8(0x51);
// The following expression makes Minecarts shake more with less health or higher damage taken
// It gets half the maximum health, and takes it away from the current health minus the half health:
/*
Health: 5 | 3 - (5 - 3) = 1 (shake power)
Health: 3 | 3 - (3 - 3) = 3
Health: 1 | 3 - (1 - 3) = 5
*/
auto & Minecart = static_cast<const cMinecart &>(a_Entity);
a_Pkt.WriteBEInt32(static_cast<Int32>((((a_Entity.GetMaxHealth() / 2) - (a_Entity.GetHealth() - (a_Entity.GetMaxHealth() / 2))) * Minecart.LastDamage()) * 4));
a_Pkt.WriteBEUInt8(0x52);
a_Pkt.WriteBEInt32(1); // Shaking direction, doesn't seem to affect anything
a_Pkt.WriteBEUInt8(0x73);
a_Pkt.WriteBEFloat(static_cast<float>(Minecart.LastDamage() + 10)); // Damage taken / shake effect multiplyer
if (Minecart.GetPayload() == cMinecart::mpNone)
{
auto & RideableMinecart = static_cast<const cRideableMinecart &>(Minecart);
const cItem & MinecartContent = RideableMinecart.GetContent();
if (!MinecartContent.IsEmpty())
{
a_Pkt.WriteBEUInt8(0x54);
int Content = MinecartContent.m_ItemType;
Content |= MinecartContent.m_ItemDamage << 8;
a_Pkt.WriteBEInt32(Content);
a_Pkt.WriteBEUInt8(0x55);
a_Pkt.WriteBEInt32(RideableMinecart.GetBlockHeight());
a_Pkt.WriteBEUInt8(0x56);
a_Pkt.WriteBEUInt8(1);
}
}
else if (Minecart.GetPayload() == cMinecart::mpFurnace)
{
a_Pkt.WriteBEUInt8(0x10);
a_Pkt.WriteBEUInt8(static_cast<const cMinecartWithFurnace &>(Minecart).IsFueled() ? 1 : 0);
}
break;
} // case etMinecart
case cEntity::etProjectile:
{
auto & Projectile = static_cast<const cProjectileEntity &>(a_Entity);
switch (Projectile.GetProjectileKind())
{
case cProjectileEntity::pkArrow:
{
a_Pkt.WriteBEUInt8(0x10);
a_Pkt.WriteBEUInt8(static_cast<const cArrowEntity &>(Projectile).IsCritical() ? 1 : 0);
break;
}
case cProjectileEntity::pkFirework:
{
a_Pkt.WriteBEUInt8(0xa8);
WriteItem(a_Pkt, static_cast<const cFireworkEntity &>(Projectile).GetItem());
break;
}
default:
{
break;
}
}
break;
} // case etProjectile
case cEntity::etMonster:
{
WriteMobMetadata(a_Pkt, static_cast<const cMonster &>(a_Entity));
break;
}
case cEntity::etItemFrame:
{
auto & Frame = static_cast<const cItemFrame &>(a_Entity);
a_Pkt.WriteBEUInt8(0xa8);
WriteItem(a_Pkt, Frame.GetItem());
a_Pkt.WriteBEUInt8(0x09);
a_Pkt.WriteBEUInt8(Frame.GetItemRotation());
break;
} // case etItemFrame
default:
{
break;
}
}
}
void cProtocol_1_8_0::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_Mob)
{
// Living Enitiy Metadata
if (a_Mob.HasCustomName())
{
a_Pkt.WriteBEUInt8(0x82);
a_Pkt.WriteString(a_Mob.GetCustomName());
a_Pkt.WriteBEUInt8(0x03);
a_Pkt.WriteBool(a_Mob.IsCustomNameAlwaysVisible());
}
a_Pkt.WriteBEUInt8(0x66);
a_Pkt.WriteBEFloat(static_cast<float>(a_Mob.GetHealth()));
switch (a_Mob.GetMobType())
{
case mtBat:
{
auto & Bat = static_cast<const cBat &>(a_Mob);
a_Pkt.WriteBEUInt8(0x10);
a_Pkt.WriteBEUInt8(Bat.IsHanging() ? 1 : 0);
break;
} // case mtBat
case mtChicken:
{
auto & Chicken = static_cast<const cChicken &>(a_Mob);
a_Pkt.WriteBEUInt8(0x0c);
a_Pkt.WriteBEInt8(Chicken.IsBaby() ? -1 : (Chicken.IsInLoveCooldown() ? 1 : 0));
break;
} // case mtChicken
case mtCow:
{
auto & Cow = static_cast<const cCow &>(a_Mob);
a_Pkt.WriteBEUInt8(0x0c);
a_Pkt.WriteBEInt8(Cow.IsBaby() ? -1 : (Cow.IsInLoveCooldown() ? 1 : 0));
break;
} // case mtCow
case mtCreeper:
{
auto & Creeper = static_cast<const cCreeper &>(a_Mob);
a_Pkt.WriteBEUInt8(0x10);
a_Pkt.WriteBEUInt8(Creeper.IsBlowing() ? 1 : 255);
a_Pkt.WriteBEUInt8(0x11);
a_Pkt.WriteBEUInt8(Creeper.IsCharged() ? 1 : 0);
break;
} // case mtCreeper
case mtEnderman:
{
auto & Enderman = static_cast<const cEnderman &>(a_Mob);
a_Pkt.WriteBEUInt8(0x30);
a_Pkt.WriteBEInt16(static_cast<Byte>(Enderman.GetCarriedBlock()));
a_Pkt.WriteBEUInt8(0x11);
a_Pkt.WriteBEUInt8(static_cast<Byte>(Enderman.GetCarriedMeta()));
a_Pkt.WriteBEUInt8(0x12);
a_Pkt.WriteBEUInt8(Enderman.IsScreaming() ? 1 : 0);
break;
} // case mtEnderman
case mtGhast:
{
auto & Ghast = static_cast<const cGhast &>(a_Mob);
a_Pkt.WriteBEUInt8(0x10);
a_Pkt.WriteBEUInt8(Ghast.IsCharging());
break;
} // case mtGhast
case mtHorse:
{
auto & Horse = static_cast<const cHorse &>(a_Mob);
int 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(0x50); // Int at index 16
a_Pkt.WriteBEInt32(Flags);
a_Pkt.WriteBEUInt8(0x13); // Byte at index 19
a_Pkt.WriteBEUInt8(static_cast<UInt8>(Horse.GetHorseType()));
a_Pkt.WriteBEUInt8(0x54); // Int at index 20
int Appearance = 0;
Appearance = Horse.GetHorseColor();
Appearance |= Horse.GetHorseStyle() << 8;
a_Pkt.WriteBEInt32(Appearance);
a_Pkt.WriteBEUInt8(0x56); // Int at index 22
a_Pkt.WriteBEInt32(Horse.GetHorseArmour());
a_Pkt.WriteBEUInt8(0x0c);
a_Pkt.WriteBEInt8(Horse.IsBaby() ? -1 : (Horse.IsInLoveCooldown() ? 1 : 0));
break;
} // case mtHorse
case mtMagmaCube:
{
auto & MagmaCube = static_cast<const cMagmaCube &>(a_Mob);
a_Pkt.WriteBEUInt8(0x10);
a_Pkt.WriteBEUInt8(static_cast<UInt8>(MagmaCube.GetSize()));
break;
} // case mtMagmaCube
case mtOcelot:
{
auto & Ocelot = static_cast<const cOcelot &>(a_Mob);
a_Pkt.WriteBEUInt8(0x0c);
a_Pkt.WriteBEInt8(Ocelot.IsBaby() ? -1 : (Ocelot.IsInLoveCooldown() ? 1 : 0));
break;
} // case mtOcelot
case mtPig:
{
auto & Pig = static_cast<const cPig &>(a_Mob);
a_Pkt.WriteBEUInt8(0x0c);
a_Pkt.WriteBEInt8(Pig.IsBaby() ? -1 : (Pig.IsInLoveCooldown() ? 1 : 0));
a_Pkt.WriteBEUInt8(0x10);
a_Pkt.WriteBEUInt8(Pig.IsSaddled() ? 1 : 0);
break;
} // case mtPig
case mtSheep:
{
auto & Sheep = static_cast<const cSheep &>(a_Mob);
a_Pkt.WriteBEUInt8(0x0c);
a_Pkt.WriteBEInt8(Sheep.IsBaby() ? -1 : (Sheep.IsInLoveCooldown() ? 1 : 0));
a_Pkt.WriteBEUInt8(0x10);
Byte SheepMetadata = 0;
SheepMetadata = static_cast<Byte>(Sheep.GetFurColor());
if (Sheep.IsSheared())
{
SheepMetadata |= 0x10;
}
a_Pkt.WriteBEUInt8(SheepMetadata);
break;
} // case mtSheep
case mtRabbit:
{
auto & Rabbit = static_cast<const cRabbit &>(a_Mob);
a_Pkt.WriteBEUInt8(0x12);
a_Pkt.WriteBEUInt8(static_cast<UInt8>(Rabbit.GetRabbitType()));
a_Pkt.WriteBEUInt8(0x0c);
a_Pkt.WriteBEInt8(Rabbit.IsBaby() ? -1 : (Rabbit.IsInLoveCooldown() ? 1 : 0));
break;
} // case mtRabbit
case mtSlime:
{
auto & Slime = static_cast<const cSlime &>(a_Mob);
a_Pkt.WriteBEUInt8(0x10);
a_Pkt.WriteBEUInt8(static_cast<UInt8>(Slime.GetSize()));
break;
} // case mtSlime
case mtSkeleton:
case mtStray:
{
a_Pkt.WriteBEUInt8(0x0d);
a_Pkt.WriteBEUInt8(0); // Is normal skeleton
break;
}
case mtVillager:
{
auto & Villager = static_cast<const cVillager &>(a_Mob);
a_Pkt.WriteBEUInt8(0x50);
a_Pkt.WriteBEInt32(Villager.GetVilType());
a_Pkt.WriteBEUInt8(0x0c);
a_Pkt.WriteBEInt8(Villager.IsBaby() ? -1 : 0);
break;
} // case mtVillager
case mtWitch:
{
auto & Witch = static_cast<const cWitch &>(a_Mob);
a_Pkt.WriteBEUInt8(0x15);
a_Pkt.WriteBEUInt8(Witch.IsAngry() ? 1 : 0);
break;
} // case mtWitch
case mtWither:
{
auto & Wither = static_cast<const cWither &>(a_Mob);
a_Pkt.WriteBEUInt8(0x54); // Int at index 20
a_Pkt.WriteBEInt32(static_cast<Int32>(Wither.GetWitherInvulnerableTicks()));
a_Pkt.WriteBEUInt8(0x66); // Float at index 6
a_Pkt.WriteBEFloat(static_cast<float>(a_Mob.GetHealth()));
break;
} // case mtWither
case mtWitherSkeleton:
{
a_Pkt.WriteBEUInt8(0x0d);
a_Pkt.WriteBEUInt8(1); // Is wither skeleton
break;
} // case mtWitherSkeleton
case mtWolf:
{
auto & Wolf = static_cast<const cWolf &>(a_Mob);
Byte WolfStatus = 0;
if (Wolf.IsSitting())
{
WolfStatus |= 0x1;
}
if (Wolf.IsAngry())
{
WolfStatus |= 0x2;
}
if (Wolf.IsTame())
{
WolfStatus |= 0x4;
}
a_Pkt.WriteBEUInt8(0x10);
a_Pkt.WriteBEUInt8(WolfStatus);
a_Pkt.WriteBEUInt8(0x72);
a_Pkt.WriteBEFloat(static_cast<float>(a_Mob.GetHealth()));
a_Pkt.WriteBEUInt8(0x13);
a_Pkt.WriteBEUInt8(Wolf.IsBegging() ? 1 : 0);
a_Pkt.WriteBEUInt8(0x14);
a_Pkt.WriteBEUInt8(static_cast<UInt8>(Wolf.GetCollarColor()));
a_Pkt.WriteBEUInt8(0x0c);
a_Pkt.WriteBEInt8(Wolf.IsBaby() ? -1 : 0);
break;
} // case mtWolf
case mtHusk:
case mtZombie:
{
auto & Zombie = static_cast<const cZombie &>(a_Mob);
a_Pkt.WriteBEUInt8(0x0c);
a_Pkt.WriteBEInt8(Zombie.IsBaby() ? 1 : -1);
a_Pkt.WriteBEUInt8(0x0d);
a_Pkt.WriteBEUInt8(0);
a_Pkt.WriteBEUInt8(0x0e);
a_Pkt.WriteBEUInt8(0);
break;
} // case mtZombie
case mtZombiePigman:
{
auto & ZombiePigman = static_cast<const cZombiePigman &>(a_Mob);
a_Pkt.WriteBEUInt8(0x0c);
a_Pkt.WriteBEInt8(ZombiePigman.IsBaby() ? 1 : -1);
break;
} // case mtZombiePigman
case mtZombieVillager:
{
auto & ZombieVillager = reinterpret_cast<const cZombieVillager &>(a_Mob);
a_Pkt.WriteBEUInt8(0x0c);
a_Pkt.WriteBEInt8(ZombieVillager.IsBaby() ? 1 : -1);
a_Pkt.WriteBEUInt8(0x0d);
a_Pkt.WriteBEUInt8(1);
a_Pkt.WriteBEUInt8(0x0e);
a_Pkt.WriteBEUInt8((ZombieVillager.ConversionTime() == -1) ? 0 : 1);
break;
} // case mtZombieVillager
case mtBlaze:
case mtElderGuardian:
case mtGuardian:
{
// TODO: Mobs with extra fields that aren't implemented
break;
}
case mtCat:
case mtEndermite:
case mtDonkey:
case mtMule:
case mtSkeletonHorse:
case mtZombieHorse:
{
// Todo: Mobs not added yet. Grouped ones have the same metadata
ASSERT(!"cProtocol_1_8::WriteMobMetadata: received unimplemented type");
break;
}
case mtCaveSpider:
case mtEnderDragon:
case mtGiant:
case mtIronGolem:
case mtMooshroom:
case mtSilverfish:
case mtSnowGolem:
case mtSpider:
case mtSquid:
{
// Allowed mobs without additional metadata
break;
}
default: UNREACHABLE("cProtocol_1_8::WriteMobMetadata: received mob of invalid type");
} // switch (a_Mob.GetType())
}
void cProtocol_1_8_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
}
void cProtocol_1_8_0::AddReceivedData(cByteBuffer & a_Buffer, const ContiguousByteBufferView a_Data)
{
// Write the incoming data into the comm log file:
if (g_ShouldLogCommIn && m_CommLogFile.IsOpen())
{
if (a_Buffer.GetReadableSpace() > 0)
{
ContiguousByteBuffer AllData;
size_t OldReadableSpace = a_Buffer.GetReadableSpace();
a_Buffer.ReadAll(AllData);
a_Buffer.ResetRead();
a_Buffer.SkipRead(a_Buffer.GetReadableSpace() - OldReadableSpace);
ASSERT(a_Buffer.GetReadableSpace() == OldReadableSpace);
AString Hex;
CreateHexDump(Hex, AllData.data(), AllData.size(), 16);
m_CommLogFile.Printf("Incoming data, %zu (0x%zx) unparsed bytes already present in buffer:\n%s\n",
AllData.size(), AllData.size(), Hex.c_str()
);
}
AString Hex;
CreateHexDump(Hex, a_Data.data(), a_Data.size(), 16);
m_CommLogFile.Printf("Incoming data: %zu (0x%zx) bytes: \n%s\n",
a_Data.size(), a_Data.size(), Hex.c_str()
);
m_CommLogFile.Flush();
}
if (!a_Buffer.Write(a_Data.data(), a_Data.size()))
{
// Too much data in the incoming queue, report to caller:
m_Client->PacketBufferFull();
return;
}
// Handle all complete packets:
for (;;)
{
UInt32 PacketLen;
if (!a_Buffer.ReadVarInt(PacketLen))
{
// Not enough data
a_Buffer.ResetRead();
break;
}
if (!a_Buffer.CanReadBytes(PacketLen))
{
// The full packet hasn't been received yet
a_Buffer.ResetRead();
break;
}
// Check packet for compression:
if (m_State == 3)
{
UInt32 NumBytesRead = static_cast<UInt32>(a_Buffer.GetReadableSpace());
UInt32 UncompressedSize;
if (!a_Buffer.ReadVarInt(UncompressedSize))
{
m_Client->Kick("Compression packet incomplete");
return;
}
NumBytesRead -= static_cast<UInt32>(a_Buffer.GetReadableSpace()); // How many bytes has the UncompressedSize taken up?
ASSERT(PacketLen > NumBytesRead);
PacketLen -= NumBytesRead;
if (UncompressedSize > 0)
{
// Decompress the data:
m_Extractor.ReadFrom(a_Buffer, PacketLen);
a_Buffer.CommitRead();
const auto UncompressedData = m_Extractor.Extract(UncompressedSize);
const auto Uncompressed = UncompressedData.GetView();
cByteBuffer bb(Uncompressed.size());
// Compression was used, move the uncompressed data:
VERIFY(bb.Write(Uncompressed.data(), Uncompressed.size()));
HandlePacket(bb);
continue;
}
}
// Move the packet payload to a separate cByteBuffer, bb:
cByteBuffer bb(PacketLen);
// No compression was used, move directly:
VERIFY(a_Buffer.ReadToByteBuffer(bb, static_cast<size_t>(PacketLen)));
a_Buffer.CommitRead();
HandlePacket(bb);
} // for (ever)
// Log any leftover bytes into the logfile:
if (g_ShouldLogCommIn && (a_Buffer.GetReadableSpace() > 0) && m_CommLogFile.IsOpen())
{
ContiguousByteBuffer AllData;
size_t OldReadableSpace = a_Buffer.GetReadableSpace();
a_Buffer.ReadAll(AllData);
a_Buffer.ResetRead();
a_Buffer.SkipRead(a_Buffer.GetReadableSpace() - OldReadableSpace);
ASSERT(a_Buffer.GetReadableSpace() == OldReadableSpace);
AString Hex;
CreateHexDump(Hex, AllData.data(), AllData.size(), 16);
m_CommLogFile.Printf("There are %zu (0x%zx) bytes of non-parse-able data left in the buffer:\n%s",
a_Buffer.GetReadableSpace(), a_Buffer.GetReadableSpace(), Hex.c_str()
);
m_CommLogFile.Flush();
}
}
void cProtocol_1_8_0::HandlePacket(cByteBuffer & a_Buffer)
{
UInt32 PacketType;
if (!a_Buffer.ReadVarInt(PacketType))
{
// Not enough data
return;
}
// Log the packet info into the comm log file:
if (g_ShouldLogCommIn && m_CommLogFile.IsOpen())
{
ContiguousByteBuffer PacketData;
a_Buffer.ReadAll(PacketData);
a_Buffer.ResetRead();
a_Buffer.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, a_Buffer.GetUsedSpace(), a_Buffer.GetUsedSpace(), m_State, PacketDataHex.c_str()
);
}
if (!HandlePacket(a_Buffer, PacketType))
{
// Unknown packet, already been reported, but without the length. Log the length here:
LOGWARNING("Unhandled packet: type 0x%x, state %d, length %u", PacketType, m_State, a_Buffer.GetUsedSpace());
#ifndef NDEBUG
// Dump the packet contents into the log:
a_Buffer.ResetRead();
ContiguousByteBuffer Packet;
a_Buffer.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 // !NDEBUG
// 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 nothing left in the buffer:
if (a_Buffer.GetReadableSpace() != 0)
{
// Read more or less than packet length, report as error
LOGWARNING("Protocol 1.8: Wrong number of bytes read for packet 0x%x, state %d. Read %zu bytes, packet contained %u bytes",
PacketType, m_State, a_Buffer.GetUsedSpace() - a_Buffer.GetReadableSpace(), a_Buffer.GetUsedSpace()
);
// 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 %zu left) ^^^^^^\n\n\n",
1, a_Buffer.GetReadableSpace()
);
m_CommLogFile.Flush();
}
ASSERT(!"Read wrong number of bytes!");
m_Client->PacketError(PacketType);
}
}
void cProtocol_1_8_0::SendEntityTeleport(const cEntity & a_Entity)
{
cPacketizer Pkt(*this, pktTeleportEntity);
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteFPInt(a_Entity.GetPosX());
Pkt.WriteFPInt(a_Entity.GetPosY());
Pkt.WriteFPInt(a_Entity.GetPosZ());
Pkt.WriteByteAngle(a_Entity.GetYaw());
Pkt.WriteByteAngle(a_Entity.GetPitch());
Pkt.WriteBool(a_Entity.IsOnGround());
}
UInt8 cProtocol_1_8_0::GetProtocolEntityType(const cEntity & a_Entity)
{
using Type = cEntity::eEntityType;
switch (a_Entity.GetEntityType())
{
case Type::etEnderCrystal: return 51;
case Type::etPickup: return 2;
case Type::etFallingBlock: return 70;
case Type::etMinecart: return 10;
case Type::etBoat: return 1;
case Type::etTNT: return 50;
case Type::etProjectile:
{
using PType = cProjectileEntity::eKind;
const auto & Projectile = static_cast<const cProjectileEntity &>(a_Entity);
switch (Projectile.GetProjectileKind())
{
case PType::pkArrow: return 60;
case PType::pkSnowball: return 61;
case PType::pkEgg: return 62;
case PType::pkGhastFireball: return 63;
case PType::pkFireCharge: return 64;
case PType::pkEnderPearl: return 65;
case PType::pkExpBottle: return 75;
case PType::pkSplashPotion: return 73;
case PType::pkFirework: return 76;
case PType::pkWitherSkull: return 66;
}
}
case Type::etFloater: return 90;
case Type::etItemFrame: return 71;
case Type::etLeashKnot: return 77;
// Non-objects must not be sent
case Type::etEntity:
case Type::etPlayer:
case Type::etMonster:
case Type::etExpOrb:
case Type::etPainting: break;
}
UNREACHABLE("Unhandled entity kind");
}
const char * cProtocol_1_8_0::GetProtocolStatisticName(Statistic a_Statistic)
{
switch (a_Statistic)
{
// V1.8 Achievements
case Statistic::AchOpenInventory: return "achievement.openInventory";
case Statistic::AchMineWood: return "achievement.mineWood";
case Statistic::AchBuildWorkBench: return "achievement.buildWorkBench";
case Statistic::AchBuildPickaxe: return "achievement.buildPickaxe";
case Statistic::AchBuildFurnace: return "achievement.buildFurnace";
case Statistic::AchAcquireIron: return "achievement.acquireIron";
case Statistic::AchBuildHoe: return "achievement.buildHoe";
case Statistic::AchMakeBread: return "achievement.makeBread";
case Statistic::AchBakeCake: return "achievement.bakeCake";
case Statistic::AchBuildBetterPickaxe: return "achievement.buildBetterPickaxe";
case Statistic::AchCookFish: return "achievement.cookFish";
case Statistic::AchOnARail: return "achievement.onARail";
case Statistic::AchBuildSword: return "achievement.buildSword";
case Statistic::AchKillEnemy: return "achievement.killEnemy";
case Statistic::AchKillCow: return "achievement.killCow";
case Statistic::AchFlyPig: return "achievement.flyPig";
case Statistic::AchSnipeSkeleton: return "achievement.snipeSkeleton";
case Statistic::AchDiamonds: return "achievement.diamonds";
case Statistic::AchPortal: return "achievement.portal";
case Statistic::AchGhast: return "achievement.ghast";
case Statistic::AchBlazeRod: return "achievement.blazeRod";
case Statistic::AchPotion: return "achievement.potion";
case Statistic::AchTheEnd: return "achievement.theEnd";
case Statistic::AchTheEnd2: return "achievement.theEnd2";
case Statistic::AchEnchantments: return "achievement.enchantments";
case Statistic::AchOverkill: return "achievement.overkill";
case Statistic::AchBookcase: return "achievement.bookcase";
case Statistic::AchExploreAllBiomes: return "achievement.exploreAllBiomes";
case Statistic::AchSpawnWither: return "achievement.spawnWither";
case Statistic::AchKillWither: return "achievement.killWither";
case Statistic::AchFullBeacon: return "achievement.fullBeacon";
case Statistic::AchBreedCow: return "achievement.breedCow";
case Statistic::AchDiamondsToYou: return "achievement.diamondsToYou";
// V1.8 stats
case Statistic::AnimalsBred: return "stat.animalsBred";
case Statistic::BoatOneCm: return "stat.boatOneCm";
case Statistic::ClimbOneCm: return "stat.climbOneCm";
case Statistic::CrouchOneCm: return "stat.crouchOneCm";
case Statistic::DamageDealt: return "stat.damageDealt";
case Statistic::DamageTaken: return "stat.damageTaken";
case Statistic::Deaths: return "stat.deaths";
case Statistic::Drop: return "stat.drop";
case Statistic::FallOneCm: return "stat.fallOneCm";
case Statistic::FishCaught: return "stat.fishCaught";
case Statistic::FlyOneCm: return "stat.flyOneCm";
case Statistic::HorseOneCm: return "stat.horseOneCm";
case Statistic::Jump: return "stat.jump";
case Statistic::LeaveGame: return "stat.leaveGame";
case Statistic::MinecartOneCm: return "stat.minecartOneCm";
case Statistic::MobKills: return "stat.mobKills";
case Statistic::PigOneCm: return "stat.pigOneCm";
case Statistic::PlayerKills: return "stat.playerKills";
case Statistic::PlayOneMinute: return "stat.playOneMinute";
case Statistic::SprintOneCm: return "stat.sprintOneCm";
case Statistic::SwimOneCm: return "stat.swimOneCm";
case Statistic::TalkedToVillager: return "stat.talkedToVillager";
case Statistic::TimeSinceDeath: return "stat.timeSinceDeath";
case Statistic::TradedWithVillager: return "stat.tradedWithVillager";
case Statistic::WalkOneCm: return "stat.walkOneCm";
case Statistic::WalkUnderWaterOneCm: return "stat.diveOneCm";
// V1.8.2 stats
case Statistic::CleanArmor: return "stat.armorCleaned";
case Statistic::CleanBanner: return "stat.bannerCleaned";
case Statistic::EatCakeSlice: return "stat.cakeSlicesEaten";
case Statistic::EnchantItem: return "stat.itemEnchanted";
case Statistic::FillCauldron: return "stat.cauldronFilled";
case Statistic::InspectDispenser: return "stat.dispenserInspected";
case Statistic::InspectDropper: return "stat.dropperInspected";
case Statistic::InspectHopper: return "stat.hopperInspected";
case Statistic::InteractWithBeacon: return "stat.beaconInteraction";
case Statistic::InteractWithBrewingstand: return "stat.brewingstandInteraction";
case Statistic::InteractWithCraftingTable: return "stat.craftingTableInteraction";
case Statistic::InteractWithFurnace: return "stat.furnaceInteraction";
case Statistic::OpenChest: return "stat.chestOpened";
case Statistic::OpenEnderchest: return "stat.enderchestOpened";
case Statistic::PlayNoteblock: return "stat.noteblockPlayed";
case Statistic::PlayRecord: return "stat.recordPlayed";
case Statistic::PotFlower: return "stat.flowerPotted";
case Statistic::TriggerTrappedChest: return "stat.trappedChestTriggered";
case Statistic::TuneNoteblock: return "stat.noteblockTuned";
case Statistic::UseCauldron: return "stat.cauldronUsed";
// V1.9 stats
case Statistic::AviateOneCm: return "stat.aviateOneCm";
case Statistic::SleepInBed: return "stat.sleepInBed";
case Statistic::SneakTime: return "stat.sneakTime";
default: return "";
}
}
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