// Protocol_1_9.cpp
/*
Implements the 1.9 protocol classes:
- cProtocol_1_9_0
- release 1.9 protocol (#107)
- cProtocol_1_9_1
- release 1.9.1 protocol (#108)
- cProtocol_1_9_2
- release 1.9.2 protocol (#109)
- cProtocol_1_9_4
- release 1.9.4 protocol (#110)
*/
#include "Globals.h"
#include "json/json.h"
#include "Protocol_1_9.h"
#include "ChunkDataSerializer.h"
#include "PolarSSL++/Sha1Checksum.h"
#include "Packetizer.h"
#include "../ClientHandle.h"
#include "../Root.h"
#include "../Server.h"
#include "../World.h"
#include "../EffectID.h"
#include "../StringCompression.h"
#include "../CompositeChat.h"
#include "../Statistics.h"
#include "../WorldStorage/FastNBT.h"
#include "../WorldStorage/EnchantmentSerializer.h"
#include "../Entities/Boat.h"
#include "../Entities/ExpOrb.h"
#include "../Entities/Minecart.h"
#include "../Entities/FallingBlock.h"
#include "../Entities/Painting.h"
#include "../Entities/Pickup.h"
#include "../Entities/Player.h"
#include "../Entities/ItemFrame.h"
#include "../Entities/ArrowEntity.h"
#include "../Entities/FireworkEntity.h"
#include "../Entities/SplashPotionEntity.h"
#include "../Items/ItemSpawnEgg.h"
#include "../Mobs/IncludeAllMonsters.h"
#include "../UI/Window.h"
#include "../BlockEntities/BeaconEntity.h"
#include "../BlockEntities/CommandBlockEntity.h"
#include "../BlockEntities/MobHeadEntity.h"
#include "../BlockEntities/MobSpawnerEntity.h"
#include "../BlockEntities/FlowerPotEntity.h"
#include "Bindings/PluginManager.h"
/** The slot number that the client uses to indicate "outside the window". */
static const Int16 SLOT_NUM_OUTSIDE = -999;
/** Value for main hand in Hand parameter for Protocol 1.9. */
static const UInt32 MAIN_HAND = 0;
#define HANDLE_READ(ByteBuf, Proc, Type, Var) \
Type Var; \
if (!ByteBuf.Proc(Var))\
{\
return;\
}
#define HANDLE_PACKET_READ(ByteBuf, Proc, Type, Var) \
Type Var; \
{ \
if (!ByteBuf.Proc(Var)) \
{ \
ByteBuf.CheckValid(); \
return false; \
} \
ByteBuf.CheckValid(); \
}
const int MAX_ENC_LEN = 512; // Maximum size of the encrypted message; should be 128, but who knows...
const uLongf MAX_COMPRESSED_PACKET_LEN = 200 KiB; // Maximum size of compressed packets.
// fwd: main.cpp:
extern bool g_ShouldLogCommIn, g_ShouldLogCommOut;
////////////////////////////////////////////////////////////////////////////////
// cProtocol_1_9_0:
cProtocol_1_9_0::cProtocol_1_9_0(cClientHandle * a_Client, const AString & a_ServerAddress, UInt16 a_ServerPort, UInt32 a_State) :
super(a_Client),
m_ServerAddress(a_ServerAddress),
m_ServerPort(a_ServerPort),
m_State(a_State),
m_IsTeleportIdConfirmed(true),
m_OutstandingTeleportId(0),
m_ReceivedData(32 KiB),
m_IsEncrypted(false)
{
// BungeeCord handling:
// If BC is setup with ip_forward == true, it sends additional data in the login packet's ServerAddress field:
// hostname\00ip-address\00uuid\00profile-properties-as-json
AStringVector Params;
if (cRoot::Get()->GetServer()->ShouldAllowBungeeCord() && SplitZeroTerminatedStrings(a_ServerAddress, Params) && (Params.size() == 4))
{
LOGD("Player at %s connected via BungeeCord", Params[1].c_str());
m_ServerAddress = Params[0];
m_Client->SetIPString(Params[1]);
m_Client->SetUUID(cMojangAPI::MakeUUIDShort(Params[2]));
m_Client->SetProperties(Params[3]);
}
// Create the comm log file, if so requested:
if (g_ShouldLogCommIn || g_ShouldLogCommOut)
{
static int sCounter = 0;
cFile::CreateFolder("CommLogs");
AString IP(a_Client->GetIPString());
ReplaceString(IP, ":", "_");
AString FileName = Printf("CommLogs/%x_%d__%s.log",
static_cast<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_9_0::DataReceived(const char * a_Data, size_t a_Size)
{
if (m_IsEncrypted)
{
Byte Decrypted[512];
while (a_Size > 0)
{
size_t NumBytes = (a_Size > sizeof(Decrypted)) ? sizeof(Decrypted) : a_Size;
m_Decryptor.ProcessData(Decrypted, reinterpret_cast<const Byte *>(a_Data), NumBytes);
AddReceivedData(reinterpret_cast<const char *>(Decrypted), NumBytes);
a_Size -= NumBytes;
a_Data += NumBytes;
}
}
else
{
AddReceivedData(a_Data, a_Size);
}
}
void cProtocol_1_9_0::SendAttachEntity(const cEntity & a_Entity, const cEntity & a_Vehicle)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x40); // Set passangers packet
Pkt.WriteVarInt32(a_Vehicle.GetUniqueID());
Pkt.WriteVarInt32(1); // 1 passenger
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
}
void cProtocol_1_9_0::SendBlockAction(int a_BlockX, int a_BlockY, int a_BlockZ, char a_Byte1, char a_Byte2, BLOCKTYPE a_BlockType)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x0a); // Block Action packet
Pkt.WritePosition64(a_BlockX, a_BlockY, a_BlockZ);
Pkt.WriteBEInt8(a_Byte1);
Pkt.WriteBEInt8(a_Byte2);
Pkt.WriteVarInt32(a_BlockType);
}
void cProtocol_1_9_0::SendBlockBreakAnim(UInt32 a_EntityID, int a_BlockX, int a_BlockY, int a_BlockZ, char a_Stage)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x08); // Block Break Animation packet
Pkt.WriteVarInt32(a_EntityID);
Pkt.WritePosition64(a_BlockX, a_BlockY, a_BlockZ);
Pkt.WriteBEInt8(a_Stage);
}
void cProtocol_1_9_0::SendBlockChange(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x0b); // Block Change packet
Pkt.WritePosition64(a_BlockX, a_BlockY, a_BlockZ);
Pkt.WriteVarInt32((static_cast<UInt32>(a_BlockType) << 4) | (static_cast<UInt32>(a_BlockMeta) & 15));
}
void cProtocol_1_9_0::SendBlockChanges(int a_ChunkX, int a_ChunkZ, const sSetBlockVector & a_Changes)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x10); // Multi Block Change packet
Pkt.WriteBEInt32(a_ChunkX);
Pkt.WriteBEInt32(a_ChunkZ);
Pkt.WriteVarInt32(static_cast<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_9_0::SendCameraSetTo(const cEntity & a_Entity)
{
cPacketizer Pkt(*this, 0x36); // Camera Packet (Attach the camera of a player at another entity in spectator mode)
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
}
void cProtocol_1_9_0::SendChat(const AString & a_Message, eChatType a_Type)
{
ASSERT(m_State == 3); // In game mode?
SendChatRaw(Printf("{\"text\":\"%s\"}", EscapeString(a_Message).c_str()), a_Type);
}
void cProtocol_1_9_0::SendChat(const cCompositeChat & a_Message, eChatType a_Type, bool a_ShouldUseChatPrefixes)
{
ASSERT(m_State == 3); // In game mode?
SendChatRaw(a_Message.CreateJsonString(a_ShouldUseChatPrefixes), a_Type);
}
void cProtocol_1_9_0::SendChatRaw(const AString & a_MessageRaw, eChatType a_Type)
{
ASSERT(m_State == 3); // In game mode?
// Send the json string to the client:
cPacketizer Pkt(*this, 0x0f); // Chat Message packet
Pkt.WriteString(a_MessageRaw);
Pkt.WriteBEInt8(a_Type);
}
void cProtocol_1_9_0::SendChunkData(int a_ChunkX, int a_ChunkZ, cChunkDataSerializer & a_Serializer)
{
ASSERT(m_State == 3); // In game mode?
// Serialize first, before creating the Packetizer (the packetizer locks a CS)
// This contains the flags and bitmasks, too
const AString & ChunkData = a_Serializer.Serialize(cChunkDataSerializer::RELEASE_1_9_0, a_ChunkX, a_ChunkZ);
cCSLock Lock(m_CSPacket);
SendData(ChunkData.data(), ChunkData.size());
}
void cProtocol_1_9_0::SendCollectEntity(const cEntity & a_Entity, const cPlayer & a_Player, int a_Count)
{
UNUSED(a_Count);
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x49); // Collect Item packet
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteVarInt32(a_Player.GetUniqueID());
}
void cProtocol_1_9_0::SendDestroyEntity(const cEntity & a_Entity)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x30); // Destroy Entities packet
Pkt.WriteVarInt32(1);
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
}
void cProtocol_1_9_0::SendDetachEntity(const cEntity & a_Entity, const cEntity & a_PreviousVehicle)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x40); // Set passangers packet
Pkt.WriteVarInt32(a_PreviousVehicle.GetUniqueID());
Pkt.WriteVarInt32(0); // No passangers
}
void cProtocol_1_9_0::SendDisconnect(const AString & a_Reason)
{
switch (m_State)
{
case 2:
{
// During login:
cPacketizer Pkt(*this, 0);
Pkt.WriteString(Printf("{\"text\":\"%s\"}", EscapeString(a_Reason).c_str()));
break;
}
case 3:
{
// In-game:
cPacketizer Pkt(*this, 0x1a);
Pkt.WriteString(Printf("{\"text\":\"%s\"}", EscapeString(a_Reason).c_str()));
break;
}
}
}
void cProtocol_1_9_0::SendEditSign(int a_BlockX, int a_BlockY, int a_BlockZ)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x2a); // Sign Editor Open packet
Pkt.WritePosition64(a_BlockX, a_BlockY, a_BlockZ);
}
void cProtocol_1_9_0::SendEntityEffect(const cEntity & a_Entity, int a_EffectID, int a_Amplifier, short a_Duration)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x4c); // Entity Effect packet
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteBEUInt8(static_cast<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_9_0::SendEntityEquipment(const cEntity & a_Entity, short a_SlotNum, const cItem & a_Item)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x3c); // Entity Equipment packet
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
// Needs to be adjusted due to the insertion of offhand at slot 1
if (a_SlotNum > 0)
{
a_SlotNum++;
}
Pkt.WriteVarInt32(static_cast<UInt32>(a_SlotNum));
WriteItem(Pkt, a_Item);
}
void cProtocol_1_9_0::SendEntityHeadLook(const cEntity & a_Entity)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x34); // Entity Head Look packet
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteByteAngle(a_Entity.GetHeadYaw());
}
void cProtocol_1_9_0::SendEntityLook(const cEntity & a_Entity)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x27); // Entity Look packet
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteByteAngle(a_Entity.GetYaw());
Pkt.WriteByteAngle(a_Entity.GetPitch());
Pkt.WriteBool(a_Entity.IsOnGround());
}
void cProtocol_1_9_0::SendEntityMetadata(const cEntity & a_Entity)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x39); // Entity Metadata packet
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
WriteEntityMetadata(Pkt, a_Entity);
Pkt.WriteBEUInt8(0xff); // The termination byte
}
void cProtocol_1_9_0::SendEntityProperties(const cEntity & a_Entity)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x4b); // Entity Properties packet
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
WriteEntityProperties(Pkt, a_Entity);
}
void cProtocol_1_9_0::SendEntityRelMove(const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x25); // Entity Relative Move packet
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
// TODO: 1.9 changed these from chars to shorts, meaning that there can be more percision and data. Other code needs to be updated for that.
Pkt.WriteBEInt16(a_RelX * 128);
Pkt.WriteBEInt16(a_RelY * 128);
Pkt.WriteBEInt16(a_RelZ * 128);
Pkt.WriteBool(a_Entity.IsOnGround());
}
void cProtocol_1_9_0::SendEntityRelMoveLook(const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x26); // Entity Look And Relative Move packet
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
// TODO: 1.9 changed these from chars to shorts, meaning that there can be more percision and data. Other code needs to be updated for that.
Pkt.WriteBEInt16(a_RelX * 128);
Pkt.WriteBEInt16(a_RelY * 128);
Pkt.WriteBEInt16(a_RelZ * 128);
Pkt.WriteByteAngle(a_Entity.GetYaw());
Pkt.WriteByteAngle(a_Entity.GetPitch());
Pkt.WriteBool(a_Entity.IsOnGround());
}
void cProtocol_1_9_0::SendEntityStatus(const cEntity & a_Entity, char a_Status)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x1b); // Entity Status packet
Pkt.WriteBEUInt32(a_Entity.GetUniqueID());
Pkt.WriteBEInt8(a_Status);
}
void cProtocol_1_9_0::SendEntityVelocity(const cEntity & a_Entity)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x3b); // Entity Velocity packet
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
// 400 = 8000 / 20 ... Conversion from our speed in m / s to 8000 m / tick
Pkt.WriteBEInt16(static_cast<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_9_0::SendExplosion(double a_BlockX, double a_BlockY, double a_BlockZ, float a_Radius, const cVector3iArray & a_BlocksAffected, const Vector3d & a_PlayerMotion)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x1c); // Explosion packet
Pkt.WriteBEFloat(static_cast<float>(a_BlockX));
Pkt.WriteBEFloat(static_cast<float>(a_BlockY));
Pkt.WriteBEFloat(static_cast<float>(a_BlockZ));
Pkt.WriteBEFloat(static_cast<float>(a_Radius));
Pkt.WriteBEUInt32(static_cast<UInt32>(a_BlocksAffected.size()));
for (cVector3iArray::const_iterator itr = a_BlocksAffected.begin(), end = a_BlocksAffected.end(); itr != end; ++itr)
{
Pkt.WriteBEInt8(static_cast<Int8>(itr->x));
Pkt.WriteBEInt8(static_cast<Int8>(itr->y));
Pkt.WriteBEInt8(static_cast<Int8>(itr->z));
} // for itr - a_BlockAffected[]
Pkt.WriteBEFloat(static_cast<float>(a_PlayerMotion.x));
Pkt.WriteBEFloat(static_cast<float>(a_PlayerMotion.y));
Pkt.WriteBEFloat(static_cast<float>(a_PlayerMotion.z));
}
void cProtocol_1_9_0::SendGameMode(eGameMode a_GameMode)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x1e); // Change Game State packet
Pkt.WriteBEUInt8(3); // Reason: Change game mode
Pkt.WriteBEFloat(static_cast<float>(a_GameMode)); // The protocol really represents the value with a float!
}
void cProtocol_1_9_0::SendHealth(void)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x3e); // Update Health packet
cPlayer * Player = m_Client->GetPlayer();
Pkt.WriteBEFloat(static_cast<float>(Player->GetHealth()));
Pkt.WriteVarInt32(static_cast<UInt32>(Player->GetFoodLevel()));
Pkt.WriteBEFloat(static_cast<float>(Player->GetFoodSaturationLevel()));
}
void cProtocol_1_9_0::SendHideTitle(void)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x45); // Title packet
Pkt.WriteVarInt32(3); // Hide title
}
void cProtocol_1_9_0::SendInventorySlot(char a_WindowID, short a_SlotNum, const cItem & a_Item)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x16); // Set Slot packet
Pkt.WriteBEInt8(a_WindowID);
Pkt.WriteBEInt16(a_SlotNum);
WriteItem(Pkt, a_Item);
}
void cProtocol_1_9_0::SendKeepAlive(UInt32 a_PingID)
{
// Drop the packet if the protocol is not in the Game state yet (caused a client crash):
if (m_State != 3)
{
LOGWARNING("Trying to send a KeepAlive packet to a player who's not yet fully logged in (%d). The protocol class prevented the packet.", m_State);
return;
}
cPacketizer Pkt(*this, 0x1f); // Keep Alive packet
Pkt.WriteVarInt32(a_PingID);
}
void cProtocol_1_9_0::SendLogin(const cPlayer & a_Player, const cWorld & a_World)
{
// Send the Join Game packet:
{
cServer * Server = cRoot::Get()->GetServer();
cPacketizer Pkt(*this, 0x23); // Join Game packet
Pkt.WriteBEUInt32(a_Player.GetUniqueID());
Pkt.WriteBEUInt8(static_cast<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, 0x43); // Spawn Position packet
Pkt.WritePosition64(FloorC(a_World.GetSpawnX()), FloorC(a_World.GetSpawnY()), FloorC(a_World.GetSpawnZ()));
}
// Send the server difficulty:
{
cPacketizer Pkt(*this, 0x0d); // Server difficulty packet
Pkt.WriteBEInt8(1);
}
// Send player abilities:
SendPlayerAbilities();
}
void cProtocol_1_9_0::SendLoginSuccess(void)
{
ASSERT(m_State == 2); // State: login?
// Enable compression:
{
cPacketizer Pkt(*this, 0x03); // Set compression packet
Pkt.WriteVarInt32(256);
}
m_State = 3; // State = Game
{
cPacketizer Pkt(*this, 0x02); // Login success packet
Pkt.WriteString(cMojangAPI::MakeUUIDDashed(m_Client->GetUUID()));
Pkt.WriteString(m_Client->GetUsername());
}
}
void cProtocol_1_9_0::SendPaintingSpawn(const cPainting & a_Painting)
{
ASSERT(m_State == 3); // In game mode?
double PosX = a_Painting.GetPosX();
double PosY = a_Painting.GetPosY();
double PosZ = a_Painting.GetPosZ();
cPacketizer Pkt(*this, 0x04); // Spawn Painting packet
Pkt.WriteVarInt32(a_Painting.GetUniqueID());
// TODO: Bad way to write a UUID, and it's not a true UUID, but this is functional for now.
Pkt.WriteBEUInt64(0);
Pkt.WriteBEUInt64(a_Painting.GetUniqueID());
Pkt.WriteString(a_Painting.GetName().c_str());
Pkt.WritePosition64(static_cast<Int32>(PosX), static_cast<Int32>(PosY), static_cast<Int32>(PosZ));
Pkt.WriteBEInt8(static_cast<Int8>(a_Painting.GetProtocolFacing()));
}
void cProtocol_1_9_0::SendMapData(const cMap & a_Map, int a_DataStartX, int a_DataStartY)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x24); // Map packet
Pkt.WriteVarInt32(a_Map.GetID());
Pkt.WriteBEUInt8(static_cast<UInt8>(a_Map.GetScale()));
Pkt.WriteBool(true);
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_9_0::SendPickupSpawn(const cPickup & a_Pickup)
{
ASSERT(m_State == 3); // In game mode?
{ // TODO Use SendSpawnObject
cPacketizer Pkt(*this, 0x00); // Spawn Object packet
Pkt.WriteVarInt32(a_Pickup.GetUniqueID());
// TODO: Bad way to write a UUID, and it's not a true UUID, but this is functional for now.
Pkt.WriteBEUInt64(0);
Pkt.WriteBEUInt64(a_Pickup.GetUniqueID());
Pkt.WriteBEUInt8(2); // Type = Pickup
Pkt.WriteBEDouble(a_Pickup.GetPosX());
Pkt.WriteBEDouble(a_Pickup.GetPosY());
Pkt.WriteBEDouble(a_Pickup.GetPosZ());
Pkt.WriteByteAngle(a_Pickup.GetYaw());
Pkt.WriteByteAngle(a_Pickup.GetPitch());
Pkt.WriteBEInt32(0); // No object data
Pkt.WriteBEInt16(0); // No velocity
Pkt.WriteBEInt16(0);
Pkt.WriteBEInt16(0);
}
SendEntityMetadata(a_Pickup);
}
void cProtocol_1_9_0::SendPlayerAbilities(void)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x2b); // Player Abilities packet
Byte Flags = 0;
cPlayer * Player = m_Client->GetPlayer();
if (Player->IsGameModeCreative())
{
Flags |= 0x01;
Flags |= 0x08; // Godmode, used for creative
}
if (Player->IsFlying())
{
Flags |= 0x02;
}
if (Player->CanFly())
{
Flags |= 0x04;
}
Pkt.WriteBEUInt8(Flags);
Pkt.WriteBEFloat(static_cast<float>(0.05 * Player->GetFlyingMaxSpeed()));
Pkt.WriteBEFloat(static_cast<float>(0.1 * Player->GetNormalMaxSpeed()));
}
void cProtocol_1_9_0::SendEntityAnimation(const cEntity & a_Entity, char a_Animation)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x06); // Animation packet
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteBEInt8(a_Animation);
}
void cProtocol_1_9_0::SendParticleEffect(const AString & a_ParticleName, float a_SrcX, float a_SrcY, float a_SrcZ, float a_OffsetX, float a_OffsetY, float a_OffsetZ, float a_ParticleData, int a_ParticleAmount)
{
ASSERT(m_State == 3); // In game mode?
int ParticleID = GetParticleID(a_ParticleName);
cPacketizer Pkt(*this, 0x22); // Particle effect packet
Pkt.WriteBEInt32(ParticleID);
Pkt.WriteBool(false);
Pkt.WriteBEFloat(a_SrcX);
Pkt.WriteBEFloat(a_SrcY);
Pkt.WriteBEFloat(a_SrcZ);
Pkt.WriteBEFloat(a_OffsetX);
Pkt.WriteBEFloat(a_OffsetY);
Pkt.WriteBEFloat(a_OffsetZ);
Pkt.WriteBEFloat(a_ParticleData);
Pkt.WriteBEInt32(a_ParticleAmount);
}
void cProtocol_1_9_0::SendParticleEffect(const AString & a_ParticleName, Vector3f a_Src, Vector3f a_Offset, float a_ParticleData, int a_ParticleAmount, std::array<int, 2> a_Data)
{
ASSERT(m_State == 3); // In game mode?
int ParticleID = GetParticleID(a_ParticleName);
cPacketizer Pkt(*this, 0x22); // Particle effect packet
Pkt.WriteBEInt32(ParticleID);
Pkt.WriteBool(false);
Pkt.WriteBEFloat(a_Src.x);
Pkt.WriteBEFloat(a_Src.y);
Pkt.WriteBEFloat(a_Src.z);
Pkt.WriteBEFloat(a_Offset.x);
Pkt.WriteBEFloat(a_Offset.y);
Pkt.WriteBEFloat(a_Offset.z);
Pkt.WriteBEFloat(a_ParticleData);
Pkt.WriteBEInt32(a_ParticleAmount);
switch (ParticleID)
{
// iconcrack
case 36:
{
Pkt.WriteVarInt32(static_cast<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_9_0::SendPlayerListAddPlayer(const cPlayer & a_Player)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x2d); // Playerlist Item packet
Pkt.WriteVarInt32(0);
Pkt.WriteVarInt32(1);
Pkt.WriteUUID(a_Player.GetUUID());
Pkt.WriteString(a_Player.GetPlayerListName());
const Json::Value & Properties = a_Player.GetClientHandle()->GetProperties();
Pkt.WriteVarInt32(Properties.size());
for (auto & Node : Properties)
{
Pkt.WriteString(Node.get("name", "").asString());
Pkt.WriteString(Node.get("value", "").asString());
AString Signature = Node.get("signature", "").asString();
if (Signature.empty())
{
Pkt.WriteBool(false);
}
else
{
Pkt.WriteBool(true);
Pkt.WriteString(Signature);
}
}
Pkt.WriteVarInt32(static_cast<UInt32>(a_Player.GetGameMode()));
Pkt.WriteVarInt32(static_cast<UInt32>(a_Player.GetClientHandle()->GetPing()));
Pkt.WriteBool(false);
}
void cProtocol_1_9_0::SendPlayerListRemovePlayer(const cPlayer & a_Player)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x2d); // Playerlist Item packet
Pkt.WriteVarInt32(4);
Pkt.WriteVarInt32(1);
Pkt.WriteUUID(a_Player.GetUUID());
}
void cProtocol_1_9_0::SendPlayerListUpdateGameMode(const cPlayer & a_Player)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x2d); // Playerlist Item packet
Pkt.WriteVarInt32(1);
Pkt.WriteVarInt32(1);
Pkt.WriteUUID(a_Player.GetUUID());
Pkt.WriteVarInt32(static_cast<UInt32>(a_Player.GetGameMode()));
}
void cProtocol_1_9_0::SendPlayerListUpdatePing(const cPlayer & a_Player)
{
ASSERT(m_State == 3); // In game mode?
auto ClientHandle = a_Player.GetClientHandlePtr();
if (ClientHandle != nullptr)
{
cPacketizer Pkt(*this, 0x2d); // Playerlist Item packet
Pkt.WriteVarInt32(2);
Pkt.WriteVarInt32(1);
Pkt.WriteUUID(a_Player.GetUUID());
Pkt.WriteVarInt32(static_cast<UInt32>(ClientHandle->GetPing()));
}
}
void cProtocol_1_9_0::SendPlayerListUpdateDisplayName(const cPlayer & a_Player, const AString & a_CustomName)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x2d); // Playerlist Item packet
Pkt.WriteVarInt32(3);
Pkt.WriteVarInt32(1);
Pkt.WriteUUID(a_Player.GetUUID());
if (a_CustomName.empty())
{
Pkt.WriteBool(false);
}
else
{
Pkt.WriteBool(true);
Pkt.WriteString(Printf("{\"text\":\"%s\"}", a_CustomName.c_str()));
}
}
void cProtocol_1_9_0::SendPlayerMaxSpeed(void)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x4b); // Entity Properties
cPlayer * Player = m_Client->GetPlayer();
Pkt.WriteVarInt32(Player->GetUniqueID());
Pkt.WriteBEInt32(1); // Count
Pkt.WriteString("generic.movementSpeed");
// The default game speed is 0.1, multiply that value by the relative speed:
Pkt.WriteBEDouble(0.1 * Player->GetNormalMaxSpeed());
if (Player->IsSprinting())
{
Pkt.WriteVarInt32(1); // Modifier count
Pkt.WriteBEUInt64(0x662a6b8dda3e4c1c);
Pkt.WriteBEUInt64(0x881396ea6097278d); // UUID of the modifier
Pkt.WriteBEDouble(Player->GetSprintingMaxSpeed() - Player->GetNormalMaxSpeed());
Pkt.WriteBEUInt8(2);
}
else
{
Pkt.WriteVarInt32(0); // Modifier count
}
}
void cProtocol_1_9_0::SendPlayerMoveLook(void)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x2e); // Player Position And Look packet
cPlayer * Player = m_Client->GetPlayer();
Pkt.WriteBEDouble(Player->GetPosX());
Pkt.WriteBEDouble(Player->GetPosY());
Pkt.WriteBEDouble(Player->GetPosZ());
Pkt.WriteBEFloat(static_cast<float>(Player->GetYaw()));
Pkt.WriteBEFloat(static_cast<float>(Player->GetPitch()));
Pkt.WriteBEUInt8(0);
Pkt.WriteVarInt32(++m_OutstandingTeleportId);
// This teleport ID hasn't been confirmed yet
m_IsTeleportIdConfirmed = false;
}
void cProtocol_1_9_0::SendPlayerPosition(void)
{
// There is no dedicated packet for this, send the whole thing:
SendPlayerMoveLook();
}
void cProtocol_1_9_0::SendPlayerSpawn(const cPlayer & a_Player)
{
// Called to spawn another player for the client
cPacketizer Pkt(*this, 0x05); // Spawn Player packet
Pkt.WriteVarInt32(a_Player.GetUniqueID());
Pkt.WriteUUID(cMojangAPI::MakeUUIDShort(a_Player.GetUUID()));
Pkt.WriteBEDouble(a_Player.GetPosX());
Pkt.WriteBEDouble(a_Player.GetPosY() + 0.001); // The "+ 0.001" is there because otherwise the player falls through the block they were standing on.
Pkt.WriteBEDouble(a_Player.GetPosZ());
Pkt.WriteByteAngle(a_Player.GetYaw());
Pkt.WriteByteAngle(a_Player.GetPitch());
WriteEntityMetadata(Pkt, a_Player);
Pkt.WriteBEUInt8(0xff); // Metadata: end
}
void cProtocol_1_9_0::SendPluginMessage(const AString & a_Channel, const AString & a_Message)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x18); // Plugin message packet
Pkt.WriteString(a_Channel);
Pkt.WriteBuf(a_Message.data(), a_Message.size());
}
void cProtocol_1_9_0::SendRemoveEntityEffect(const cEntity & a_Entity, int a_EffectID)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x31); // Remove entity effect packet
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteBEUInt8(static_cast<UInt8>(a_EffectID));
}
void cProtocol_1_9_0::SendResetTitle(void)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x45); // Title packet
Pkt.WriteVarInt32(4); // Reset title
}
void cProtocol_1_9_0::SendRespawn(eDimension a_Dimension)
{
cPacketizer Pkt(*this, 0x33); // Respawn packet
cPlayer * Player = m_Client->GetPlayer();
Pkt.WriteBEInt32(static_cast<Int32>(a_Dimension));
Pkt.WriteBEUInt8(2); // TODO: Difficulty (set to Normal)
Pkt.WriteBEUInt8(static_cast<Byte>(Player->GetEffectiveGameMode()));
Pkt.WriteString("default");
}
void cProtocol_1_9_0::SendExperience(void)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x3d); // Experience Packet
cPlayer * Player = m_Client->GetPlayer();
Pkt.WriteBEFloat(Player->GetXpPercentage());
Pkt.WriteVarInt32(static_cast<UInt32>(Player->GetXpLevel()));
Pkt.WriteVarInt32(static_cast<UInt32>(Player->GetCurrentXp()));
}
void cProtocol_1_9_0::SendExperienceOrb(const cExpOrb & a_ExpOrb)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x01); // Spawn experience orb packet
Pkt.WriteVarInt32(a_ExpOrb.GetUniqueID());
Pkt.WriteBEDouble(a_ExpOrb.GetPosX());
Pkt.WriteBEDouble(a_ExpOrb.GetPosY());
Pkt.WriteBEDouble(a_ExpOrb.GetPosZ());
Pkt.WriteBEInt16(static_cast<Int16>(a_ExpOrb.GetReward()));
}
void cProtocol_1_9_0::SendScoreboardObjective(const AString & a_Name, const AString & a_DisplayName, Byte a_Mode)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x3f); // Scoreboard objective packet
Pkt.WriteString(a_Name);
Pkt.WriteBEUInt8(a_Mode);
if ((a_Mode == 0) || (a_Mode == 2))
{
Pkt.WriteString(a_DisplayName);
Pkt.WriteString("integer");
}
}
void cProtocol_1_9_0::SendScoreUpdate(const AString & a_Objective, const AString & a_Player, cObjective::Score a_Score, Byte a_Mode)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x42); // Update score packet
Pkt.WriteString(a_Player);
Pkt.WriteBEUInt8(a_Mode);
Pkt.WriteString(a_Objective);
if (a_Mode != 1)
{
Pkt.WriteVarInt32(static_cast<UInt32>(a_Score));
}
}
void cProtocol_1_9_0::SendDisplayObjective(const AString & a_Objective, cScoreboard::eDisplaySlot a_Display)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x38); // Display scoreboard packet
Pkt.WriteBEUInt8(static_cast<UInt8>(a_Display));
Pkt.WriteString(a_Objective);
}
void cProtocol_1_9_0::SendSetSubTitle(const cCompositeChat & a_SubTitle)
{
SendSetRawSubTitle(a_SubTitle.CreateJsonString(false));
}
void cProtocol_1_9_0::SendSetRawSubTitle(const AString & a_SubTitle)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x45); // Title packet
Pkt.WriteVarInt32(1); // Set subtitle
Pkt.WriteString(a_SubTitle);
}
void cProtocol_1_9_0::SendSetTitle(const cCompositeChat & a_Title)
{
SendSetRawTitle(a_Title.CreateJsonString(false));
}
void cProtocol_1_9_0::SendSetRawTitle(const AString & a_Title)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x45); // Title packet
Pkt.WriteVarInt32(0); // Set title
Pkt.WriteString(a_Title);
}
void cProtocol_1_9_0::SendSoundEffect(const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x19); // Named sound effect packet
Pkt.WriteString(a_SoundName);
Pkt.WriteVarInt32(0); // Master sound category (may want to be changed to a parameter later)
Pkt.WriteBEInt32(static_cast<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_9_0::SendSoundParticleEffect(const EffectID a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x21); // Effect packet
Pkt.WriteBEInt32(static_cast<int>(a_EffectID));
Pkt.WritePosition64(a_SrcX, a_SrcY, a_SrcZ);
Pkt.WriteBEInt32(a_Data);
Pkt.WriteBool(false);
}
void cProtocol_1_9_0::SendSpawnFallingBlock(const cFallingBlock & a_FallingBlock)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x00); // Spawn Object packet
Pkt.WriteVarInt32(a_FallingBlock.GetUniqueID());
// TODO: Bad way to write a UUID, and it's not a true UUID, but this is functional for now.
Pkt.WriteBEUInt64(0);
Pkt.WriteBEUInt64(a_FallingBlock.GetUniqueID());
Pkt.WriteBEUInt8(70); // Falling block
Pkt.WriteBEDouble(a_FallingBlock.GetPosX());
Pkt.WriteBEDouble(a_FallingBlock.GetPosY());
Pkt.WriteBEDouble(a_FallingBlock.GetPosZ());
Pkt.WriteByteAngle(a_FallingBlock.GetYaw());
Pkt.WriteByteAngle(a_FallingBlock.GetPitch());
Pkt.WriteBEInt32(static_cast<Int32>(a_FallingBlock.GetBlockType()) | (static_cast<Int32>(a_FallingBlock.GetBlockMeta()) << 12));
Pkt.WriteBEInt16(static_cast<Int16>(a_FallingBlock.GetSpeedX() * 400));
Pkt.WriteBEInt16(static_cast<Int16>(a_FallingBlock.GetSpeedY() * 400));
Pkt.WriteBEInt16(static_cast<Int16>(a_FallingBlock.GetSpeedZ() * 400));
}
void cProtocol_1_9_0::SendSpawnMob(const cMonster & a_Mob)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x03); // Spawn Mob packet
Pkt.WriteVarInt32(a_Mob.GetUniqueID());
// TODO: Bad way to write a UUID, and it's not a true UUID, but this is functional for now.
Pkt.WriteBEUInt64(0);
Pkt.WriteBEUInt64(a_Mob.GetUniqueID());
Pkt.WriteBEUInt8(static_cast<Byte>(a_Mob.GetMobType()));
Pkt.WriteBEDouble(a_Mob.GetPosX());
Pkt.WriteBEDouble(a_Mob.GetPosY());
Pkt.WriteBEDouble(a_Mob.GetPosZ());
Pkt.WriteByteAngle(a_Mob.GetPitch());
Pkt.WriteByteAngle(a_Mob.GetHeadYaw());
Pkt.WriteByteAngle(a_Mob.GetYaw());
Pkt.WriteBEInt16(static_cast<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(0xff); // Metadata terminator
}
void cProtocol_1_9_0::SendSpawnObject(const cEntity & a_Entity, char a_ObjectType, int a_ObjectData, Byte a_Yaw, Byte a_Pitch)
{
ASSERT(m_State == 3); // In game mode?
double PosX = a_Entity.GetPosX();
double PosZ = a_Entity.GetPosZ();
double Yaw = a_Entity.GetYaw();
if (a_ObjectType == 71)
{
FixItemFramePositions(a_ObjectData, PosX, PosZ, Yaw);
}
cPacketizer Pkt(*this, 0x00); // Spawn Object packet
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
// TODO: Bad way to write a UUID, and it's not a true UUID, but this is functional for now.
Pkt.WriteBEUInt64(0);
Pkt.WriteBEUInt64(a_Entity.GetUniqueID());
Pkt.WriteBEUInt8(static_cast<UInt8>(a_ObjectType));
Pkt.WriteBEDouble(PosX);
Pkt.WriteBEDouble(a_Entity.GetPosY());
Pkt.WriteBEDouble(PosZ);
Pkt.WriteByteAngle(a_Entity.GetPitch());
Pkt.WriteByteAngle(Yaw);
Pkt.WriteBEInt32(a_ObjectData);
Pkt.WriteBEInt16(static_cast<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_9_0::SendSpawnVehicle(const cEntity & a_Vehicle, char a_VehicleType, char a_VehicleSubType)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x00); // Spawn Object packet
Pkt.WriteVarInt32(a_Vehicle.GetUniqueID());
// TODO: Bad way to write a UUID, and it's not a true UUID, but this is functional for now.
Pkt.WriteBEUInt64(0);
Pkt.WriteBEUInt64(a_Vehicle.GetUniqueID());
Pkt.WriteBEUInt8(static_cast<UInt8>(a_VehicleType));
Pkt.WriteBEDouble(a_Vehicle.GetPosX());
Pkt.WriteBEDouble(a_Vehicle.GetPosY());
Pkt.WriteBEDouble(a_Vehicle.GetPosZ());
Pkt.WriteByteAngle(a_Vehicle.GetPitch());
Pkt.WriteByteAngle(a_Vehicle.GetYaw());
Pkt.WriteBEInt32(a_VehicleSubType);
Pkt.WriteBEInt16(static_cast<Int16>(a_Vehicle.GetSpeedX() * 400));
Pkt.WriteBEInt16(static_cast<Int16>(a_Vehicle.GetSpeedY() * 400));
Pkt.WriteBEInt16(static_cast<Int16>(a_Vehicle.GetSpeedZ() * 400));
}
void cProtocol_1_9_0::SendStatistics(const cStatManager & a_Manager)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x07); // Statistics packet
Pkt.WriteVarInt32(statCount); // TODO 2014-05-11 xdot: Optimization: Send "dirty" statistics only
size_t Count = static_cast<size_t>(statCount);
for (size_t i = 0; i < Count; ++i)
{
StatValue Value = a_Manager.GetValue(static_cast<eStatistic>(i));
const AString & StatName = cStatInfo::GetName(static_cast<eStatistic>(i));
Pkt.WriteString(StatName);
Pkt.WriteVarInt32(static_cast<UInt32>(Value));
}
}
void cProtocol_1_9_0::SendTabCompletionResults(const AStringVector & a_Results)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x0e); // Tab-Complete packet
Pkt.WriteVarInt32(static_cast<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_9_0::SendTeleportEntity(const cEntity & a_Entity)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x4a); // Entity teleport packet
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteBEDouble(a_Entity.GetPosX());
Pkt.WriteBEDouble(a_Entity.GetPosY());
Pkt.WriteBEDouble(a_Entity.GetPosZ());
Pkt.WriteByteAngle(a_Entity.GetYaw());
Pkt.WriteByteAngle(a_Entity.GetPitch());
Pkt.WriteBool(a_Entity.IsOnGround());
}
void cProtocol_1_9_0::SendThunderbolt(int a_BlockX, int a_BlockY, int a_BlockZ)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x02); // Spawn Global Entity packet
Pkt.WriteVarInt32(0); // EntityID = 0, always
Pkt.WriteBEUInt8(1); // Type = Thunderbolt
Pkt.WriteBEDouble(a_BlockX);
Pkt.WriteBEDouble(a_BlockY);
Pkt.WriteBEDouble(a_BlockZ);
}
void cProtocol_1_9_0::SendTitleTimes(int a_FadeInTicks, int a_DisplayTicks, int a_FadeOutTicks)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x45); // Title packet
Pkt.WriteVarInt32(2); // Set title display times
Pkt.WriteBEInt32(a_FadeInTicks);
Pkt.WriteBEInt32(a_DisplayTicks);
Pkt.WriteBEInt32(a_FadeOutTicks);
}
void cProtocol_1_9_0::SendTimeUpdate(Int64 a_WorldAge, Int64 a_TimeOfDay, bool a_DoDaylightCycle)
{
ASSERT(m_State == 3); // In game mode?
if (!a_DoDaylightCycle)
{
// When writing a "-" before the number the client ignores it but it will stop the client-side time expiration.
a_TimeOfDay = std::min(-a_TimeOfDay, -1LL);
}
cPacketizer Pkt(*this, 0x44); // Time update packet
Pkt.WriteBEInt64(a_WorldAge);
Pkt.WriteBEInt64(a_TimeOfDay);
}
void cProtocol_1_9_0::SendUnloadChunk(int a_ChunkX, int a_ChunkZ)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x1d); // Unload chunk packet
Pkt.WriteBEInt32(a_ChunkX);
Pkt.WriteBEInt32(a_ChunkZ);
}
void cProtocol_1_9_0::SendUpdateBlockEntity(cBlockEntity & a_BlockEntity)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x09); // Update tile entity packet
Pkt.WritePosition64(a_BlockEntity.GetPosX(), a_BlockEntity.GetPosY(), a_BlockEntity.GetPosZ());
Byte Action = 0;
switch (a_BlockEntity.GetBlockType())
{
case E_BLOCK_MOB_SPAWNER: Action = 1; break; // Update mob spawner spinny mob thing
case E_BLOCK_COMMAND_BLOCK: Action = 2; break; // Update command block text
case E_BLOCK_BEACON: Action = 3; break; // Update beacon entity
case E_BLOCK_HEAD: Action = 4; break; // Update Mobhead entity
case E_BLOCK_FLOWER_POT: Action = 5; break; // Update flower pot
default: ASSERT(!"Unhandled or unimplemented BlockEntity update request!"); break;
}
Pkt.WriteBEUInt8(Action);
WriteBlockEntity(Pkt, a_BlockEntity);
}
void cProtocol_1_9_0::SendUpdateSign(int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x46); // Update sign packet
Pkt.WritePosition64(a_BlockX, a_BlockY, a_BlockZ);
Json::StyledWriter JsonWriter;
AString Lines[] = { a_Line1, a_Line2, a_Line3, a_Line4 };
for (size_t i = 0; i < ARRAYCOUNT(Lines); i++)
{
Json::Value RootValue;
RootValue["text"] = Lines[i];
Pkt.WriteString(JsonWriter.write(RootValue).c_str());
}
}
void cProtocol_1_9_0::SendUseBed(const cEntity & a_Entity, int a_BlockX, int a_BlockY, int a_BlockZ)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x2f); // Use bed
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WritePosition64(a_BlockX, a_BlockY, a_BlockZ);
}
void cProtocol_1_9_0::SendWeather(eWeather a_Weather)
{
ASSERT(m_State == 3); // In game mode?
{
cPacketizer Pkt(*this, 0x1e); // Change Game State packet
Pkt.WriteBEUInt8((a_Weather == wSunny) ? 1 : 2); // End rain / begin rain
Pkt.WriteBEFloat(0); // Unused for weather
}
// TODO: Fade effect, somehow
}
void cProtocol_1_9_0::SendWholeInventory(const cWindow & a_Window)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x14); // Window Items packet
Pkt.WriteBEInt8(a_Window.GetWindowID());
Pkt.WriteBEInt16(static_cast<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_9_0::SendWindowClose(const cWindow & a_Window)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x12); // Close window packet
Pkt.WriteBEInt8(a_Window.GetWindowID());
}
void cProtocol_1_9_0::SendWindowOpen(const cWindow & a_Window)
{
ASSERT(m_State == 3); // In game mode?
if (a_Window.GetWindowType() < 0)
{
// Do not send this packet for player inventory windows
return;
}
cPacketizer Pkt(*this, 0x13); // Open window packet
Pkt.WriteBEInt8(a_Window.GetWindowID());
Pkt.WriteString(a_Window.GetWindowTypeName());
Pkt.WriteString(Printf("{\"text\":\"%s\"}", a_Window.GetWindowTitle().c_str()));
switch (a_Window.GetWindowType())
{
case cWindow::wtWorkbench:
case cWindow::wtEnchantment:
case cWindow::wtAnvil:
{
Pkt.WriteBEInt8(0);
break;
}
default:
{
Pkt.WriteBEInt8(static_cast<Int8>(a_Window.GetNumNonInventorySlots()));
break;
}
}
if (a_Window.GetWindowType() == cWindow::wtAnimalChest)
{
Pkt.WriteBEInt32(0); // TODO: The animal's EntityID
}
}
void cProtocol_1_9_0::SendWindowProperty(const cWindow & a_Window, short a_Property, short a_Value)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x15); // Window Property packet
Pkt.WriteBEInt8(a_Window.GetWindowID());
Pkt.WriteBEInt16(a_Property);
Pkt.WriteBEInt16(a_Value);
}
bool cProtocol_1_9_0::CompressPacket(const AString & a_Packet, AString & a_CompressedData)
{
// Compress the data:
char CompressedData[MAX_COMPRESSED_PACKET_LEN];
uLongf CompressedSize = compressBound(static_cast<uLongf>(a_Packet.size()));
if (CompressedSize >= MAX_COMPRESSED_PACKET_LEN)
{
ASSERT(!"Too high packet size.");
return false;
}
int Status = compress2(
reinterpret_cast<Bytef *>(CompressedData), &CompressedSize,
reinterpret_cast<const Bytef *>(a_Packet.data()), static_cast<uLongf>(a_Packet.size()), Z_DEFAULT_COMPRESSION
);
if (Status != Z_OK)
{
return false;
}
AString LengthData;
cByteBuffer Buffer(20);
Buffer.WriteVarInt32(static_cast<UInt32>(a_Packet.size()));
Buffer.ReadAll(LengthData);
Buffer.CommitRead();
Buffer.WriteVarInt32(static_cast<UInt32>(CompressedSize + LengthData.size()));
Buffer.WriteVarInt32(static_cast<UInt32>(a_Packet.size()));
Buffer.ReadAll(LengthData);
Buffer.CommitRead();
a_CompressedData.clear();
a_CompressedData.reserve(LengthData.size() + CompressedSize);
a_CompressedData.append(LengthData.data(), LengthData.size());
a_CompressedData.append(CompressedData, CompressedSize);
return true;
}
int cProtocol_1_9_0::GetParticleID(const AString & a_ParticleName)
{
static std::map<AString, int> ParticleMap;
if (ParticleMap.empty())
{
// Initialize the ParticleMap:
ParticleMap["explode"] = 0;
ParticleMap["largeexplode"] = 1;
ParticleMap["hugeexplosion"] = 2;
ParticleMap["fireworksspark"] = 3;
ParticleMap["bubble"] = 4;
ParticleMap["splash"] = 5;
ParticleMap["wake"] = 6;
ParticleMap["suspended"] = 7;
ParticleMap["depthsuspend"] = 8;
ParticleMap["crit"] = 9;
ParticleMap["magiccrit"] = 10;
ParticleMap["smoke"] = 11;
ParticleMap["largesmoke"] = 12;
ParticleMap["spell"] = 13;
ParticleMap["instantspell"] = 14;
ParticleMap["mobspell"] = 15;
ParticleMap["mobspellambient"] = 16;
ParticleMap["witchmagic"] = 17;
ParticleMap["dripwater"] = 18;
ParticleMap["driplava"] = 19;
ParticleMap["angryvillager"] = 20;
ParticleMap["happyvillager"] = 21;
ParticleMap["townaura"] = 22;
ParticleMap["note"] = 23;
ParticleMap["portal"] = 24;
ParticleMap["enchantmenttable"] = 25;
ParticleMap["flame"] = 26;
ParticleMap["lava"] = 27;
ParticleMap["footstep"] = 28;
ParticleMap["cloud"] = 29;
ParticleMap["reddust"] = 30;
ParticleMap["snowballpoof"] = 31;
ParticleMap["snowshovel"] = 32;
ParticleMap["slime"] = 33;
ParticleMap["heart"] = 34;
ParticleMap["barrier"] = 35;
ParticleMap["iconcrack"] = 36;
ParticleMap["blockcrack"] = 37;
ParticleMap["blockdust"] = 38;
ParticleMap["droplet"] = 39;
ParticleMap["take"] = 40;
ParticleMap["mobappearance"] = 41;
ParticleMap["dragonbreath"] = 42;
ParticleMap["endrod"] = 43;
ParticleMap["damageindicator"] = 44;
ParticleMap["sweepattack"] = 45;
ParticleMap["fallingdust"] = 46;
ParticleMap["totem"] = 47;
ParticleMap["spit"] = 48;
}
AString ParticleName = StrToLower(a_ParticleName);
if (ParticleMap.find(ParticleName) == ParticleMap.end())
{
LOGWARNING("Unknown particle: %s", a_ParticleName.c_str());
ASSERT(!"Unknown particle");
return 0;
}
return ParticleMap[ParticleName];
}
void cProtocol_1_9_0::FixItemFramePositions(int a_ObjectData, double & a_PosX, double & a_PosZ, double & a_Yaw)
{
switch (a_ObjectData)
{
case 0:
{
a_PosZ += 1;
a_Yaw = 0;
break;
}
case 1:
{
a_PosX -= 1;
a_Yaw = 90;
break;
}
case 2:
{
a_PosZ -= 1;
a_Yaw = 180;
break;
}
case 3:
{
a_PosX += 1;
a_Yaw = 270;
break;
}
}
}
void cProtocol_1_9_0::AddReceivedData(const char * a_Data, size_t a_Size)
{
// Write the incoming data into the comm log file:
if (g_ShouldLogCommIn && m_CommLogFile.IsOpen())
{
if (m_ReceivedData.GetReadableSpace() > 0)
{
AString AllData;
size_t OldReadableSpace = m_ReceivedData.GetReadableSpace();
m_ReceivedData.ReadAll(AllData);
m_ReceivedData.ResetRead();
m_ReceivedData.SkipRead(m_ReceivedData.GetReadableSpace() - OldReadableSpace);
ASSERT(m_ReceivedData.GetReadableSpace() == OldReadableSpace);
AString Hex;
CreateHexDump(Hex, AllData.data(), AllData.size(), 16);
m_CommLogFile.Printf("Incoming data, " SIZE_T_FMT " (0x" SIZE_T_FMT_HEX ") unparsed bytes already present in buffer:\n%s\n",
AllData.size(), AllData.size(), Hex.c_str()
);
}
AString Hex;
CreateHexDump(Hex, a_Data, a_Size, 16);
m_CommLogFile.Printf("Incoming data: %u (0x%x) bytes: \n%s\n",
static_cast<unsigned>(a_Size), static_cast<unsigned>(a_Size), Hex.c_str()
);
m_CommLogFile.Flush();
}
if (!m_ReceivedData.Write(a_Data, a_Size))
{
// Too much data in the incoming queue, report to caller:
m_Client->PacketBufferFull();
return;
}
// Handle all complete packets:
for (;;)
{
UInt32 PacketLen;
if (!m_ReceivedData.ReadVarInt(PacketLen))
{
// Not enough data
m_ReceivedData.ResetRead();
break;
}
if (!m_ReceivedData.CanReadBytes(PacketLen))
{
// The full packet hasn't been received yet
m_ReceivedData.ResetRead();
break;
}
// Check packet for compression:
UInt32 UncompressedSize = 0;
AString UncompressedData;
if (m_State == 3)
{
UInt32 NumBytesRead = static_cast<UInt32>(m_ReceivedData.GetReadableSpace());
if (!m_ReceivedData.ReadVarInt(UncompressedSize))
{
m_Client->Kick("Compression packet incomplete");
return;
}
NumBytesRead -= static_cast<UInt32>(m_ReceivedData.GetReadableSpace()); // How many bytes has the UncompressedSize taken up?
ASSERT(PacketLen > NumBytesRead);
PacketLen -= NumBytesRead;
if (UncompressedSize > 0)
{
// Decompress the data:
AString CompressedData;
VERIFY(m_ReceivedData.ReadString(CompressedData, PacketLen));
if (InflateString(CompressedData.data(), PacketLen, UncompressedData) != Z_OK)
{
m_Client->Kick("Compression failure");
return;
}
PacketLen = static_cast<UInt32>(UncompressedData.size());
if (PacketLen != UncompressedSize)
{
m_Client->Kick("Wrong uncompressed packet size given");
return;
}
}
}
// Move the packet payload to a separate cByteBuffer, bb:
cByteBuffer bb(PacketLen + 1);
if (UncompressedSize == 0)
{
// No compression was used, move directly
VERIFY(m_ReceivedData.ReadToByteBuffer(bb, static_cast<size_t>(PacketLen)));
}
else
{
// Compression was used, move the uncompressed data:
VERIFY(bb.Write(UncompressedData.data(), UncompressedData.size()));
}
m_ReceivedData.CommitRead();
UInt32 PacketType;
if (!bb.ReadVarInt(PacketType))
{
// Not enough data
break;
}
// Write one NUL extra, so that we can detect over-reads
bb.Write("\0", 1);
// Log the packet info into the comm log file:
if (g_ShouldLogCommIn && m_CommLogFile.IsOpen())
{
AString PacketData;
bb.ReadAll(PacketData);
bb.ResetRead();
bb.ReadVarInt(PacketType); // We have already read the packet type once, it will be there again
ASSERT(PacketData.size() > 0); // We have written an extra NUL, so there had to be at least one byte read
PacketData.resize(PacketData.size() - 1);
AString PacketDataHex;
CreateHexDump(PacketDataHex, PacketData.data(), PacketData.size(), 16);
m_CommLogFile.Printf("Next incoming packet is type %u (0x%x), length %u (0x%x) at state %d. Payload:\n%s\n",
PacketType, PacketType, PacketLen, PacketLen, m_State, PacketDataHex.c_str()
);
}
if (!HandlePacket(bb, PacketType))
{
// Unknown packet, already been reported, but without the length. Log the length here:
LOGWARNING("Protocol 1.9: Unhandled packet: type 0x%x, state %d, length %u", PacketType, m_State, PacketLen);
#ifdef _DEBUG
// Dump the packet contents into the log:
bb.ResetRead();
AString Packet;
bb.ReadAll(Packet);
Packet.resize(Packet.size() - 1); // Drop the final NUL pushed there for over-read detection
AString Out;
CreateHexDump(Out, Packet.data(), Packet.size(), 24);
LOGD("Packet contents:\n%s", Out.c_str());
#endif // _DEBUG
// Put a message in the comm log:
if (g_ShouldLogCommIn && m_CommLogFile.IsOpen())
{
m_CommLogFile.Printf("^^^^^^ Unhandled packet ^^^^^^\n\n\n");
}
return;
}
// The packet should have 1 byte left in the buffer - the NUL we had added
if (bb.GetReadableSpace() != 1)
{
// Read more or less than packet length, report as error
LOGWARNING("Protocol 1.9: Wrong number of bytes read for packet 0x%x, state %d. Read " SIZE_T_FMT " bytes, packet contained %u bytes",
PacketType, m_State, bb.GetUsedSpace() - bb.GetReadableSpace(), PacketLen
);
// Put a message in the comm log:
if (g_ShouldLogCommIn && m_CommLogFile.IsOpen())
{
m_CommLogFile.Printf("^^^^^^ Wrong number of bytes read for this packet (exp %d left, got " SIZE_T_FMT " left) ^^^^^^\n\n\n",
1, bb.GetReadableSpace()
);
m_CommLogFile.Flush();
}
ASSERT(!"Read wrong number of bytes!");
m_Client->PacketError(PacketType);
}
} // for (ever)
// Log any leftover bytes into the logfile:
if (g_ShouldLogCommIn && (m_ReceivedData.GetReadableSpace() > 0) && m_CommLogFile.IsOpen())
{
AString AllData;
size_t OldReadableSpace = m_ReceivedData.GetReadableSpace();
m_ReceivedData.ReadAll(AllData);
m_ReceivedData.ResetRead();
m_ReceivedData.SkipRead(m_ReceivedData.GetReadableSpace() - OldReadableSpace);
ASSERT(m_ReceivedData.GetReadableSpace() == OldReadableSpace);
AString Hex;
CreateHexDump(Hex, AllData.data(), AllData.size(), 16);
m_CommLogFile.Printf("Protocol 1.9: There are " SIZE_T_FMT " (0x" SIZE_T_FMT_HEX ") bytes of non-parse-able data left in the buffer:\n%s",
m_ReceivedData.GetReadableSpace(), m_ReceivedData.GetReadableSpace(), Hex.c_str()
);
m_CommLogFile.Flush();
}
}
bool cProtocol_1_9_0::HandlePacket(cByteBuffer & a_ByteBuffer, UInt32 a_PacketType)
{
switch (m_State)
{
case 1:
{
// Status
switch (a_PacketType)
{
case 0x00: HandlePacketStatusRequest(a_ByteBuffer); return true;
case 0x01: HandlePacketStatusPing (a_ByteBuffer); return true;
}
break;
}
case 2:
{
// Login
switch (a_PacketType)
{
case 0x00: HandlePacketLoginStart (a_ByteBuffer); return true;
case 0x01: HandlePacketLoginEncryptionResponse(a_ByteBuffer); return true;
}
break;
}
case 3:
{
// Game
switch (a_PacketType)
{
case 0x00: HandleConfirmTeleport (a_ByteBuffer); return true;
case 0x01: HandlePacketTabComplete (a_ByteBuffer); return true;
case 0x02: HandlePacketChatMessage (a_ByteBuffer); return true;
case 0x03: HandlePacketClientStatus (a_ByteBuffer); return true;
case 0x04: HandlePacketClientSettings (a_ByteBuffer); return true;
case 0x05: break; // Confirm transaction - not used in MCS
case 0x06: HandlePacketEnchantItem (a_ByteBuffer); return true;
case 0x07: HandlePacketWindowClick (a_ByteBuffer); return true;
case 0x08: HandlePacketWindowClose (a_ByteBuffer); return true;
case 0x09: HandlePacketPluginMessage (a_ByteBuffer); return true;
case 0x0a: HandlePacketUseEntity (a_ByteBuffer); return true;
case 0x0b: HandlePacketKeepAlive (a_ByteBuffer); return true;
case 0x0c: HandlePacketPlayerPos (a_ByteBuffer); return true;
case 0x0d: HandlePacketPlayerPosLook (a_ByteBuffer); return true;
case 0x0e: HandlePacketPlayerLook (a_ByteBuffer); return true;
case 0x0f: HandlePacketPlayer (a_ByteBuffer); return true;
case 0x10: HandlePacketVehicleMove (a_ByteBuffer); return true;
case 0x11: HandlePacketBoatSteer (a_ByteBuffer); return true;
case 0x12: HandlePacketPlayerAbilities (a_ByteBuffer); return true;
case 0x13: HandlePacketBlockDig (a_ByteBuffer); return true;
case 0x14: HandlePacketEntityAction (a_ByteBuffer); return true;
case 0x15: HandlePacketSteerVehicle (a_ByteBuffer); return true;
case 0x16: break; // Resource pack status - not yet implemented
case 0x17: HandlePacketSlotSelect (a_ByteBuffer); return true;
case 0x18: HandlePacketCreativeInventoryAction(a_ByteBuffer); return true;
case 0x19: HandlePacketUpdateSign (a_ByteBuffer); return true;
case 0x1a: HandlePacketAnimation (a_ByteBuffer); return true;
case 0x1b: HandlePacketSpectate (a_ByteBuffer); return true;
case 0x1c: HandlePacketBlockPlace (a_ByteBuffer); return true;
case 0x1d: HandlePacketUseItem (a_ByteBuffer); return true;
}
break;
}
default:
{
// Received a packet in an unknown state, report:
LOGWARNING("Received a packet in an unknown protocol state %d. Ignoring further packets.", m_State);
// Cannot kick the client - we don't know this state and thus the packet number for the kick packet
// Switch to a state when all further packets are silently ignored:
m_State = 255;
return false;
}
case 255:
{
// This is the state used for "not processing packets anymore" when we receive a bad packet from a client.
// Do not output anything (the caller will do that for us), just return failure
return false;
}
} // switch (m_State)
// Unknown packet type, report to the ClientHandle:
m_Client->PacketUnknown(a_PacketType);
return false;
}
void cProtocol_1_9_0::HandlePacketStatusPing(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBEInt64, Int64, Timestamp);
cPacketizer Pkt(*this, 0x01); // Ping packet
Pkt.WriteBEInt64(Timestamp);
}
void cProtocol_1_9_0::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer)
{
cServer * Server = cRoot::Get()->GetServer();
AString ServerDescription = Server->GetDescription();
auto NumPlayers = static_cast<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;
Version["name"] = "Cuberite 1.9";
Version["protocol"] = 107;
// Players:
Json::Value Players;
Players["online"] = NumPlayers;
Players["max"] = MaxPlayers;
// TODO: Add "sample"
// Description:
Json::Value Description;
Description["text"] = ServerDescription.c_str();
// Create the response:
Json::Value ResponseValue;
ResponseValue["version"] = Version;
ResponseValue["players"] = Players;
ResponseValue["description"] = Description;
if (!Favicon.empty())
{
ResponseValue["favicon"] = Printf("data:image/png;base64,%s", Favicon.c_str());
}
Json::FastWriter Writer;
AString Response = Writer.write(ResponseValue);
cPacketizer Pkt(*this, 0x00); // Response packet
Pkt.WriteString(Response);
}
void cProtocol_1_9_0::HandlePacketLoginEncryptionResponse(cByteBuffer & a_ByteBuffer)
{
UInt32 EncKeyLength, EncNonceLength;
if (!a_ByteBuffer.ReadVarInt(EncKeyLength))
{
return;
}
AString EncKey;
if (!a_ByteBuffer.ReadString(EncKey, EncKeyLength))
{
return;
}
if (!a_ByteBuffer.ReadVarInt(EncNonceLength))
{
return;
}
AString EncNonce;
if (!a_ByteBuffer.ReadString(EncNonce, EncNonceLength))
{
return;
}
if ((EncKeyLength > MAX_ENC_LEN) || (EncNonceLength > MAX_ENC_LEN))
{
LOGD("Too long encryption");
m_Client->Kick("Hacked client");
return;
}
// Decrypt EncNonce using privkey
cRsaPrivateKey & rsaDecryptor = cRoot::Get()->GetServer()->GetPrivateKey();
UInt32 DecryptedNonce[MAX_ENC_LEN / sizeof(Int32)];
int res = rsaDecryptor.Decrypt(reinterpret_cast<const Byte *>(EncNonce.data()), EncNonce.size(), 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(reinterpret_cast<const Byte *>(EncKey.data()), EncKey.size(), DecryptedKey, sizeof(DecryptedKey));
if (res != 16)
{
LOGD("Bad key length");
m_Client->Kick("Hacked client");
return;
}
StartEncryption(DecryptedKey);
m_Client->HandleLogin(m_Client->GetUsername());
}
void cProtocol_1_9_0::HandlePacketLoginStart(cByteBuffer & a_ByteBuffer)
{
AString Username;
if (!a_ByteBuffer.ReadVarUTF8String(Username))
{
m_Client->Kick("Bad username");
return;
}
if (!m_Client->HandleHandshake(Username))
{
// The client is not welcome here, they have been sent a Kick packet already
return;
}
cServer * Server = cRoot::Get()->GetServer();
// If auth is required, then send the encryption request:
if (Server->ShouldAuthenticate())
{
cPacketizer Pkt(*this, 0x01);
Pkt.WriteString(Server->GetServerID());
const AString & PubKeyDer = Server->GetPublicKeyDER();
Pkt.WriteVarInt32(static_cast<UInt32>(PubKeyDer.size()));
Pkt.WriteBuf(PubKeyDer.data(), PubKeyDer.size());
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 :)
m_Client->SetUsername(Username);
return;
}
m_Client->HandleLogin(Username);
}
void cProtocol_1_9_0::HandlePacketAnimation(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadVarInt, Int32, Hand);
m_Client->HandleAnimation(0); // Packet exists solely for arm-swing notification
}
void cProtocol_1_9_0::HandlePacketBlockDig(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Status);
int BlockX, BlockY, BlockZ;
if (!a_ByteBuffer.ReadPosition64(BlockX, BlockY, BlockZ))
{
return;
}
HANDLE_READ(a_ByteBuffer, ReadVarInt, Int32, Face);
m_Client->HandleLeftClick(BlockX, BlockY, BlockZ, FaceIntToBlockFace(Face), Status);
}
void cProtocol_1_9_0::HandlePacketBlockPlace(cByteBuffer & a_ByteBuffer)
{
int BlockX, BlockY, BlockZ;
if (!a_ByteBuffer.ReadPosition64(BlockX, BlockY, BlockZ))
{
return;
}
HANDLE_READ(a_ByteBuffer, ReadVarInt, Int32, Face);
HANDLE_READ(a_ByteBuffer, ReadVarInt, Int32, Hand);
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, CursorX);
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, CursorY);
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, CursorZ);
m_Client->HandleRightClick(BlockX, BlockY, BlockZ, FaceIntToBlockFace(Face), CursorX, CursorY, CursorZ, m_Client->GetPlayer()->GetEquippedItem());
}
void cProtocol_1_9_0::HandlePacketBoatSteer(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBool, bool, RightPaddle);
HANDLE_READ(a_ByteBuffer, ReadBool, bool, LeftPaddle);
// Get the players vehicle
cPlayer * Player = m_Client->GetPlayer();
cEntity * Vehicle = Player->GetAttached();
if (Vehicle)
{
if (Vehicle->GetEntityType() == cEntity::etBoat)
{
auto * Boat = reinterpret_cast<cBoat *>(Vehicle);
Boat->UpdatePaddles(RightPaddle, LeftPaddle);
}
}
}
void cProtocol_1_9_0::HandlePacketChatMessage(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Message);
m_Client->HandleChat(Message);
}
void cProtocol_1_9_0::HandlePacketClientSettings(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Locale);
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, ViewDistance);
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, ChatFlags);
HANDLE_READ(a_ByteBuffer, ReadBool, bool, ChatColors);
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, SkinParts);
HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, MainHand);
m_Client->SetLocale(Locale);
m_Client->SetViewDistance(ViewDistance);
m_Client->GetPlayer()->SetSkinParts(SkinParts);
m_Client->GetPlayer()->SetMainHand(static_cast<eMainHand>(MainHand));
// TODO: Handle chat flags and chat colors
}
void cProtocol_1_9_0::HandlePacketClientStatus(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, ActionID);
switch (ActionID)
{
case 0:
{
// Respawn
m_Client->HandleRespawn();
break;
}
case 1:
{
// Request stats
const cStatManager & Manager = m_Client->GetPlayer()->GetStatManager();
SendStatistics(Manager);
break;
}
case 2:
{
// Open Inventory achievement
m_Client->GetPlayer()->AwardAchievement(achOpenInv);
break;
}
}
}
void cProtocol_1_9_0::HandleConfirmTeleport(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadVarInt32, UInt32, TeleportID);
// Can we stop throwing away incoming player position packets?
if (TeleportID == m_OutstandingTeleportId)
{
m_IsTeleportIdConfirmed = true;
}
}
void cProtocol_1_9_0::HandlePacketCreativeInventoryAction(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBEInt16, Int16, SlotNum);
cItem Item;
if (!ReadItem(a_ByteBuffer, Item))
{
return;
}
m_Client->HandleCreativeInventory(SlotNum, Item, (SlotNum == -1) ? caLeftClickOutside : caLeftClick);
}
void cProtocol_1_9_0::HandlePacketEntityAction(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, PlayerID);
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Action);
HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, JumpBoost);
switch (Action)
{
case 0: m_Client->HandleEntityCrouch(PlayerID, true); break; // Crouch
case 1: m_Client->HandleEntityCrouch(PlayerID, false); break; // Uncrouch
case 2: m_Client->HandleEntityLeaveBed(PlayerID); break; // Leave Bed
case 3: m_Client->HandleEntitySprinting(PlayerID, true); break; // Start sprinting
case 4: m_Client->HandleEntitySprinting(PlayerID, false); break; // Stop sprinting
}
}
void cProtocol_1_9_0::HandlePacketKeepAlive(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, KeepAliveID);
m_Client->HandleKeepAlive(KeepAliveID);
}
void cProtocol_1_9_0::HandlePacketPlayer(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBool, bool, IsOnGround);
// TODO: m_Client->HandlePlayerOnGround(IsOnGround);
}
void cProtocol_1_9_0::HandlePacketPlayerAbilities(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Flags);
HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, FlyingSpeed);
HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, WalkingSpeed);
// COnvert the bitfield into individual boolean flags:
bool IsFlying = false, CanFly = false;
if ((Flags & 2) != 0)
{
IsFlying = true;
}
if ((Flags & 4) != 0)
{
CanFly = true;
}
m_Client->HandlePlayerAbilities(CanFly, IsFlying, FlyingSpeed, WalkingSpeed);
}
void cProtocol_1_9_0::HandlePacketPlayerLook(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, Yaw);
HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, Pitch);
HANDLE_READ(a_ByteBuffer, ReadBool, bool, IsOnGround);
m_Client->HandlePlayerLook(Yaw, Pitch, IsOnGround);
}
void cProtocol_1_9_0::HandlePacketPlayerPos(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, PosX);
HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, PosY);
HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, PosZ);
HANDLE_READ(a_ByteBuffer, ReadBool, bool, IsOnGround);
if (m_IsTeleportIdConfirmed)
{
m_Client->HandlePlayerPos(PosX, PosY, PosZ, PosY + (m_Client->GetPlayer()->IsCrouched() ? 1.54 : 1.62), IsOnGround);
}
}
void cProtocol_1_9_0::HandlePacketPlayerPosLook(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, PosX);
HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, PosY);
HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, PosZ);
HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, Yaw);
HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, Pitch);
HANDLE_READ(a_ByteBuffer, ReadBool, bool, IsOnGround);
if (m_IsTeleportIdConfirmed)
{
m_Client->HandlePlayerMoveLook(PosX, PosY, PosZ, PosY + 1.62, Yaw, Pitch, IsOnGround);
}
}
void cProtocol_1_9_0::HandlePacketPluginMessage(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Channel);
// If the plugin channel is recognized vanilla, handle it directly:
if (Channel.substr(0, 3) == "MC|")
{
HandleVanillaPluginMessage(a_ByteBuffer, Channel);
// Skip any unread data (vanilla sometimes sends garbage at the end of a packet; #1692):
if (a_ByteBuffer.GetReadableSpace() > 1)
{
LOGD("Protocol 1.8: Skipping garbage data at the end of a vanilla PluginMessage packet, %u bytes",
static_cast<unsigned>(a_ByteBuffer.GetReadableSpace() - 1)
);
a_ByteBuffer.SkipRead(a_ByteBuffer.GetReadableSpace() - 1);
}
return;
}
// Read the plugin message and relay to clienthandle:
AString Data;
VERIFY(a_ByteBuffer.ReadString(Data, a_ByteBuffer.GetReadableSpace() - 1)); // Always succeeds
m_Client->HandlePluginMessage(Channel, Data);
}
void cProtocol_1_9_0::HandlePacketSlotSelect(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBEInt16, Int16, SlotNum);
m_Client->HandleSlotSelected(SlotNum);
}
void cProtocol_1_9_0::HandlePacketSpectate(cByteBuffer & a_ByteBuffer)
{
AString playerUUID;
if (!a_ByteBuffer.ReadUUID(playerUUID))
{
return;
}
m_Client->HandleSpectate(playerUUID);
}
void cProtocol_1_9_0::HandlePacketSteerVehicle(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, Sideways);
HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, Forward);
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Flags);
if ((Flags & 0x2) != 0)
{
m_Client->HandleUnmount();
}
else if ((Flags & 0x1) != 0)
{
// TODO: Handle vehicle jump (for animals)
}
else
{
m_Client->HandleSteerVehicle(Forward, Sideways);
}
}
void cProtocol_1_9_0::HandlePacketTabComplete(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Text);
HANDLE_READ(a_ByteBuffer, ReadBool, bool, AssumeCommand);
HANDLE_READ(a_ByteBuffer, ReadBool, bool, HasPosition);
if (HasPosition)
{
HANDLE_READ(a_ByteBuffer, ReadBEInt64, Int64, Position);
}
m_Client->HandleTabCompletion(Text);
}
void cProtocol_1_9_0::HandlePacketUpdateSign(cByteBuffer & a_ByteBuffer)
{
int BlockX, BlockY, BlockZ;
if (!a_ByteBuffer.ReadPosition64(BlockX, BlockY, BlockZ))
{
return;
}
AString Lines[4];
for (int i = 0; i < 4; i++)
{
HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Line);
Lines[i] = Line;
}
m_Client->HandleUpdateSign(BlockX, BlockY, BlockZ, Lines[0], Lines[1], Lines[2], Lines[3]);
}
void cProtocol_1_9_0::HandlePacketUseEntity(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, EntityID);
HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, Type);
switch (Type)
{
case 0:
{
HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, Hand);
if (Hand == MAIN_HAND) // TODO: implement handling of off-hand actions; ignore them for now to avoid processing actions twice
{
m_Client->HandleUseEntity(EntityID, false);
}
break;
}
case 1:
{
m_Client->HandleUseEntity(EntityID, true);
break;
}
case 2:
{
HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, TargetX);
HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, TargetY);
HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, TargetZ);
HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt32, Hand);
// TODO: Do anything
break;
}
default:
{
ASSERT(!"Unhandled use entity type!");
return;
}
}
}
void cProtocol_1_9_0::HandlePacketUseItem(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadVarInt, UInt64, Hand);
// Didn't click a block - emulate old values used with place block of -1, -1, -1 (and BLOCK_FACE_NONE).
m_Client->HandleRightClick(-1, 255, -1, BLOCK_FACE_NONE, 0, 0, 0, m_Client->GetPlayer()->GetEquippedItem());
}
void cProtocol_1_9_0::HandlePacketEnchantItem(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, WindowID);
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Enchantment);
m_Client->HandleEnchantItem(WindowID, Enchantment);
}
void cProtocol_1_9_0::HandlePacketVehicleMove(cByteBuffer & a_ByteBuffer)
{
// This handles updating the vehicles location server side
HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, xPos);
HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, yPos);
HANDLE_READ(a_ByteBuffer, ReadBEDouble, double, zPos);
HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, yaw);
HANDLE_READ(a_ByteBuffer, ReadBEFloat, float, pitch);
// Get the players vehicle
cEntity * Vehicle = m_Client->GetPlayer()->GetAttached();
if (Vehicle)
{
Vehicle->SetPosX(xPos);
Vehicle->SetPosY(yPos);
Vehicle->SetPosZ(zPos);
Vehicle->SetYaw(yaw);
Vehicle->SetPitch(pitch);
}
}
void cProtocol_1_9_0::HandlePacketWindowClick(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, WindowID);
HANDLE_READ(a_ByteBuffer, ReadBEInt16, Int16, SlotNum);
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Button);
HANDLE_READ(a_ByteBuffer, ReadBEUInt16, UInt16, TransactionID);
HANDLE_READ(a_ByteBuffer, ReadVarInt32, UInt32, Mode);
cItem Item;
ReadItem(a_ByteBuffer, Item);
// Convert Button, Mode, SlotNum and HeldItem into eClickAction:
eClickAction Action;
switch ((Mode << 8) | Button)
{
case 0x0000: Action = (SlotNum != SLOT_NUM_OUTSIDE) ? caLeftClick : caLeftClickOutside; break;
case 0x0001: Action = (SlotNum != SLOT_NUM_OUTSIDE) ? caRightClick : caRightClickOutside; break;
case 0x0100: Action = caShiftLeftClick; break;
case 0x0101: Action = caShiftRightClick; break;
case 0x0200: Action = caNumber1; break;
case 0x0201: Action = caNumber2; break;
case 0x0202: Action = caNumber3; break;
case 0x0203: Action = caNumber4; break;
case 0x0204: Action = caNumber5; break;
case 0x0205: Action = caNumber6; break;
case 0x0206: Action = caNumber7; break;
case 0x0207: Action = caNumber8; break;
case 0x0208: Action = caNumber9; break;
case 0x0302: Action = caMiddleClick; break;
case 0x0400: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caLeftClickOutsideHoldNothing : caDropKey; break;
case 0x0401: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caRightClickOutsideHoldNothing : caCtrlDropKey; break;
case 0x0500: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caLeftPaintBegin : caUnknown; break;
case 0x0501: Action = (SlotNum != SLOT_NUM_OUTSIDE) ? caLeftPaintProgress : caUnknown; break;
case 0x0502: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caLeftPaintEnd : caUnknown; break;
case 0x0504: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caRightPaintBegin : caUnknown; break;
case 0x0505: Action = (SlotNum != SLOT_NUM_OUTSIDE) ? caRightPaintProgress : caUnknown; break;
case 0x0506: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caRightPaintEnd : caUnknown; break;
case 0x0508: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caMiddlePaintBegin : caUnknown; break;
case 0x0509: Action = (SlotNum != SLOT_NUM_OUTSIDE) ? caMiddlePaintProgress : caUnknown; break;
case 0x050a: Action = (SlotNum == SLOT_NUM_OUTSIDE) ? caMiddlePaintEnd : caUnknown; break;
case 0x0600: Action = caDblClick; break;
default:
{
LOGWARNING("Unhandled window click mode / button combination: %d (0x%x)", (Mode << 8) | Button, (Mode << 8) | Button);
Action = caUnknown;
break;
}
}
m_Client->HandleWindowClick(WindowID, SlotNum, Action, Item);
}
void cProtocol_1_9_0::HandlePacketWindowClose(cByteBuffer & a_ByteBuffer)
{
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, WindowID);
m_Client->HandleWindowClose(WindowID);
}
void cProtocol_1_9_0::HandleVanillaPluginMessage(cByteBuffer & a_ByteBuffer, const AString & a_Channel)
{
if (a_Channel == "MC|AdvCdm")
{
HANDLE_READ(a_ByteBuffer, ReadBEUInt8, UInt8, Mode)
switch (Mode)
{
case 0x00:
{
HANDLE_READ(a_ByteBuffer, ReadBEInt32, Int32, BlockX);
HANDLE_READ(a_ByteBuffer, ReadBEInt32, Int32, BlockY);
HANDLE_READ(a_ByteBuffer, ReadBEInt32, Int32, BlockZ);
HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Command);
m_Client->HandleCommandBlockBlockChange(BlockX, BlockY, BlockZ, Command);
break;
}
default:
{
m_Client->SendChat(Printf("Failure setting command block command; unhandled mode %u (0x%02x)", Mode, Mode), mtFailure);
LOG("Unhandled MC|AdvCdm packet mode.");
return;
}
} // switch (Mode)
return;
}
else if (a_Channel == "MC|Brand")
{
HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, Brand);
m_Client->SetClientBrand(Brand);
// Send back our brand, including the length:
SendPluginMessage("MC|Brand", "\x08""Cuberite");
return;
}
else if (a_Channel == "MC|Beacon")
{
HANDLE_READ(a_ByteBuffer, ReadBEInt32, Int32, Effect1);
HANDLE_READ(a_ByteBuffer, ReadBEInt32, Int32, Effect2);
m_Client->HandleBeaconSelection(Effect1, Effect2);
return;
}
else if (a_Channel == "MC|ItemName")
{
HANDLE_READ(a_ByteBuffer, ReadVarUTF8String, AString, ItemName);
m_Client->HandleAnvilItemName(ItemName);
return;
}
else if (a_Channel == "MC|TrSel")
{
HANDLE_READ(a_ByteBuffer, ReadBEInt32, Int32, SlotNum);
m_Client->HandleNPCTrade(SlotNum);
return;
}
LOG("Unhandled vanilla plugin channel: \"%s\".", a_Channel.c_str());
// Read the payload and send it through to the clienthandle:
AString Message;
VERIFY(a_ByteBuffer.ReadString(Message, a_ByteBuffer.GetReadableSpace() - 1));
m_Client->HandlePluginMessage(a_Channel, Message);
}
void cProtocol_1_9_0::SendData(const char * a_Data, size_t a_Size)
{
if (m_IsEncrypted)
{
Byte Encrypted[8192]; // Larger buffer, we may be sending lots of data (chunks)
while (a_Size > 0)
{
size_t NumBytes = (a_Size > sizeof(Encrypted)) ? sizeof(Encrypted) : a_Size;
m_Encryptor.ProcessData(Encrypted, reinterpret_cast<Byte *>(const_cast<char*>(a_Data)), NumBytes);
m_Client->SendData(reinterpret_cast<const char *>(Encrypted), NumBytes);
a_Size -= NumBytes;
a_Data += NumBytes;
}
}
else
{
m_Client->SendData(a_Data, a_Size);
}
}
bool cProtocol_1_9_0::ReadItem(cByteBuffer & a_ByteBuffer, cItem & a_Item, size_t a_KeepRemainingBytes)
{
HANDLE_PACKET_READ(a_ByteBuffer, ReadBEInt16, Int16, ItemType);
if (ItemType == -1)
{
// The item is empty, no more data follows
a_Item.Empty();
return true;
}
a_Item.m_ItemType = ItemType;
HANDLE_PACKET_READ(a_ByteBuffer, ReadBEInt8, Int8, ItemCount);
HANDLE_PACKET_READ(a_ByteBuffer, ReadBEInt16, Int16, ItemDamage);
a_Item.m_ItemCount = ItemCount;
a_Item.m_ItemDamage = ItemDamage;
if (ItemCount <= 0)
{
a_Item.Empty();
}
AString Metadata;
if (!a_ByteBuffer.ReadString(Metadata, a_ByteBuffer.GetReadableSpace() - a_KeepRemainingBytes - 1) || (Metadata.size() == 0) || (Metadata[0] == 0))
{
// No metadata
return true;
}
ParseItemMetadata(a_Item, Metadata);
return true;
}
void cProtocol_1_9_0::ParseItemMetadata(cItem & a_Item, const AString & a_Metadata)
{
// Parse into NBT:
cParsedNBT NBT(a_Metadata.data(), a_Metadata.size());
if (!NBT.IsValid())
{
AString HexDump;
CreateHexDump(HexDump, a_Metadata.data(), std::max<size_t>(a_Metadata.size(), 1024), 16);
LOGWARNING("Cannot parse NBT item metadata: %s at (" SIZE_T_FMT " / " SIZE_T_FMT " bytes)\n%s",
NBT.GetErrorCode().message().c_str(), NBT.GetErrorPos(), a_Metadata.size(), HexDump.c_str()
);
return;
}
// Load enchantments and custom display names from the NBT data:
for (int tag = NBT.GetFirstChild(NBT.GetRoot()); tag >= 0; tag = NBT.GetNextSibling(tag))
{
AString TagName = NBT.GetName(tag);
switch (NBT.GetType(tag))
{
case TAG_List:
{
if ((TagName == "ench") || (TagName == "StoredEnchantments")) // Enchantments tags
{
EnchantmentSerializer::ParseFromNBT(a_Item.m_Enchantments, NBT, tag);
}
break;
}
case TAG_Compound:
{
if (TagName == "display") // Custom name and lore tag
{
for (int displaytag = NBT.GetFirstChild(tag); displaytag >= 0; displaytag = NBT.GetNextSibling(displaytag))
{
if ((NBT.GetType(displaytag) == TAG_String) && (NBT.GetName(displaytag) == "Name")) // Custon name tag
{
a_Item.m_CustomName = NBT.GetString(displaytag);
}
else if ((NBT.GetType(displaytag) == TAG_List) && (NBT.GetName(displaytag) == "Lore")) // Lore tag
{
a_Item.m_LoreTable.clear();
for (int loretag = NBT.GetFirstChild(displaytag); loretag >= 0; loretag = NBT.GetNextSibling(loretag)) // Loop through array of strings
{
a_Item.m_LoreTable.push_back(NBT.GetString(loretag));
}
}
else if ((NBT.GetType(displaytag) == TAG_Int) && (NBT.GetName(displaytag) == "color"))
{
a_Item.m_ItemColor.m_Color = static_cast<unsigned int>(NBT.GetInt(displaytag));
}
}
}
else if ((TagName == "Fireworks") || (TagName == "Explosion"))
{
cFireworkItem::ParseFromNBT(a_Item.m_FireworkItem, NBT, tag, static_cast<ENUM_ITEM_ID>(a_Item.m_ItemType));
}
else if (TagName == "EntityTag")
{
for (int entitytag = NBT.GetFirstChild(tag); entitytag >= 0; entitytag = NBT.GetNextSibling(entitytag))
{
if ((NBT.GetType(entitytag) == TAG_String) && (NBT.GetName(entitytag) == "id"))
{
AString NBTName = NBT.GetString(entitytag);
ReplaceString(NBTName, "minecraft:", "");
eMonsterType MonsterType = cMonster::StringToMobType(NBTName);
a_Item.m_ItemDamage = static_cast<short>(MonsterType);
}
}
}
break;
}
case TAG_Int:
{
if (TagName == "RepairCost")
{
a_Item.m_RepairCost = NBT.GetInt(tag);
}
break;
}
case TAG_String:
{
if (TagName == "Potion")
{
AString PotionEffect = NBT.GetString(tag);
if (PotionEffect.find("minecraft:") == AString::npos)
{
LOGD("Unknown or missing domain on potion effect name %s!", PotionEffect.c_str());
continue;
}
if (PotionEffect.find("water") != AString::npos)
{
a_Item.m_ItemDamage = 0;
// Water bottles shouldn't have other bits set on them; exit early.
continue;
}
if (PotionEffect.find("empty") != AString::npos)
{
a_Item.m_ItemDamage = 0;
}
else if (PotionEffect.find("mundane") != AString::npos)
{
a_Item.m_ItemDamage = 0;
}
else if (PotionEffect.find("thick") != AString::npos)
{
a_Item.m_ItemDamage = 20;
}
else if (PotionEffect.find("awkward") != AString::npos)
{
a_Item.m_ItemDamage = 10;
}
else if (PotionEffect.find("regeneration") != AString::npos)
{
a_Item.m_ItemDamage = 1;
}
else if (PotionEffect.find("swiftness") != AString::npos)
{
a_Item.m_ItemDamage = 2;
}
else if (PotionEffect.find("fire_resistance") != AString::npos)
{
a_Item.m_ItemDamage = 3;
}
else if (PotionEffect.find("poison") != AString::npos)
{
a_Item.m_ItemDamage = 4;
}
else if (PotionEffect.find("healing") != AString::npos)
{
a_Item.m_ItemDamage = 5;
}
else if (PotionEffect.find("night_vision") != AString::npos)
{
a_Item.m_ItemDamage = 6;
}
else if (PotionEffect.find("weakness") != AString::npos)
{
a_Item.m_ItemDamage = 8;
}
else if (PotionEffect.find("strength") != AString::npos)
{
a_Item.m_ItemDamage = 9;
}
else if (PotionEffect.find("slowness") != AString::npos)
{
a_Item.m_ItemDamage = 10;
}
else if (PotionEffect.find("leaping") != AString::npos)
{
a_Item.m_ItemDamage = 11;
}
else if (PotionEffect.find("harming") != AString::npos)
{
a_Item.m_ItemDamage = 12;
}
else if (PotionEffect.find("water_breathing") != AString::npos)
{
a_Item.m_ItemDamage = 13;
}
else if (PotionEffect.find("invisibility") != AString::npos)
{
a_Item.m_ItemDamage = 14;
}
else
{
// Note: luck potions are not handled and will reach this location
LOGD("Unknown potion type for effect name %s!", PotionEffect.c_str());
continue;
}
if (PotionEffect.find("strong") != AString::npos)
{
a_Item.m_ItemDamage |= 0x20;
}
if (PotionEffect.find("long") != AString::npos)
{
a_Item.m_ItemDamage |= 0x40;
}
// Ugly special case with the changed splash potion ID in 1.9
if ((a_Item.m_ItemType == 438) || (a_Item.m_ItemType == 441))
{
// Splash or lingering potions - change the ID to the normal one and mark as splash potions
a_Item.m_ItemType = E_ITEM_POTION;
a_Item.m_ItemDamage |= 0x4000; // Is splash potion
}
else
{
a_Item.m_ItemDamage |= 0x2000; // Is drinkable
}
}
break;
}
default: LOGD("Unimplemented NBT data when parsing!"); break;
}
}
}
void cProtocol_1_9_0::StartEncryption(const Byte * a_Key)
{
m_Encryptor.Init(a_Key, a_Key);
m_Decryptor.Init(a_Key, a_Key);
m_IsEncrypted = true;
// Prepare the m_AuthServerID:
cSha1Checksum Checksum;
cServer * Server = cRoot::Get()->GetServer();
const AString & ServerID = Server->GetServerID();
Checksum.Update(reinterpret_cast<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_9_0::FaceIntToBlockFace(Int32 a_BlockFace)
{
// Normalize the blockface values returned from the protocol
// Anything known gets mapped 1:1, everything else returns BLOCK_FACE_NONE
switch (a_BlockFace)
{
case BLOCK_FACE_XM: return BLOCK_FACE_XM;
case BLOCK_FACE_XP: return BLOCK_FACE_XP;
case BLOCK_FACE_YM: return BLOCK_FACE_YM;
case BLOCK_FACE_YP: return BLOCK_FACE_YP;
case BLOCK_FACE_ZM: return BLOCK_FACE_ZM;
case BLOCK_FACE_ZP: return BLOCK_FACE_ZP;
default: return BLOCK_FACE_NONE;
}
}
////////////////////////////////////////////////////////////////////////////////
// cProtocol_1_9_0::cPacketizer:
void cProtocol_1_9_0::SendPacket(cPacketizer & a_Pkt)
{
UInt32 PacketLen = static_cast<UInt32>(m_OutPacketBuffer.GetUsedSpace());
AString PacketData, CompressedPacket;
m_OutPacketBuffer.ReadAll(PacketData);
m_OutPacketBuffer.CommitRead();
if ((m_State == 3) && (PacketLen >= 256))
{
// Compress the packet payload:
if (!cProtocol_1_9_0::CompressPacket(PacketData, CompressedPacket))
{
return;
}
}
else if (m_State == 3)
{
// The packet is not compressed, indicate this in the packet header:
m_OutPacketLenBuffer.WriteVarInt32(PacketLen + 1);
m_OutPacketLenBuffer.WriteVarInt32(0);
AString LengthData;
m_OutPacketLenBuffer.ReadAll(LengthData);
SendData(LengthData.data(), LengthData.size());
}
else
{
// Compression doesn't apply to this state, send raw data:
m_OutPacketLenBuffer.WriteVarInt32(PacketLen);
AString LengthData;
m_OutPacketLenBuffer.ReadAll(LengthData);
SendData(LengthData.data(), LengthData.size());
}
// Send the packet's payload, either direct or compressed:
if (CompressedPacket.empty())
{
m_OutPacketLenBuffer.CommitRead();
SendData(PacketData.data(), PacketData.size());
}
else
{
SendData(CompressedPacket.data(), CompressedPacket.size());
}
// Log the comm into logfile:
if (g_ShouldLogCommOut && m_CommLogFile.IsOpen())
{
AString Hex;
ASSERT(PacketData.size() > 0);
CreateHexDump(Hex, PacketData.data(), PacketData.size(), 16);
m_CommLogFile.Printf("Outgoing packet: type %d (0x%x), length %u (0x%x), state %d. Payload (incl. type):\n%s\n",
a_Pkt.GetPacketType(), a_Pkt.GetPacketType(), PacketLen, PacketLen, m_State, Hex.c_str()
);
}
}
void cProtocol_1_9_0::WriteItem(cPacketizer & a_Pkt, const cItem & a_Item)
{
short ItemType = a_Item.m_ItemType;
ASSERT(ItemType >= -1); // Check validity of packets in debug runtime
if (ItemType <= 0)
{
// Fix, to make sure no invalid values are sent.
ItemType = -1;
}
if (a_Item.IsEmpty())
{
a_Pkt.WriteBEInt16(-1);
return;
}
if ((ItemType == E_ITEM_POTION) && ((a_Item.m_ItemDamage & 0x4000) != 0))
{
// Ugly special case for splash potion ids which changed in 1.9; this can be removed when the new 1.9 ids are implemented
a_Pkt.WriteBEInt16(438); // minecraft:splash_potion
}
else
{
// Normal item
a_Pkt.WriteBEInt16(ItemType);
}
a_Pkt.WriteBEInt8(a_Item.m_ItemCount);
if ((ItemType == E_ITEM_POTION) || (ItemType == E_ITEM_SPAWN_EGG))
{
// These items lost their metadata; if it is sent they don't render correctly.
a_Pkt.WriteBEInt16(0);
}
else
{
a_Pkt.WriteBEInt16(a_Item.m_ItemDamage);
}
if (a_Item.m_Enchantments.IsEmpty() && a_Item.IsBothNameAndLoreEmpty() && (ItemType != E_ITEM_FIREWORK_ROCKET) && (ItemType != E_ITEM_FIREWORK_STAR) && !a_Item.m_ItemColor.IsValid() && (ItemType != E_ITEM_POTION) && (ItemType != E_ITEM_SPAWN_EGG))
{
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.c_str());
}
if (!a_Item.IsLoreEmpty())
{
Writer.BeginList("Lore", TAG_String);
for (const auto & Line : a_Item.m_LoreTable)
{
Writer.AddString("", Line);
}
Writer.EndList();
}
Writer.EndCompound();
}
if ((a_Item.m_ItemType == E_ITEM_FIREWORK_ROCKET) || (a_Item.m_ItemType == E_ITEM_FIREWORK_STAR))
{
cFireworkItem::WriteToNBTCompound(a_Item.m_FireworkItem, Writer, static_cast<ENUM_ITEM_ID>(a_Item.m_ItemType));
}
if (a_Item.m_ItemType == E_ITEM_POTION)
{
// 1.9 potions use a different format. In the future (when only 1.9+ is supported) this should be its own class
AString PotionID = "empty"; // Fallback of "Uncraftable potion" for unhandled cases
cEntityEffect::eType Type = cEntityEffect::GetPotionEffectType(a_Item.m_ItemDamage);
if (Type != cEntityEffect::effNoEffect)
{
switch (Type)
{
case cEntityEffect::effRegeneration: PotionID = "regeneration"; break;
case cEntityEffect::effSpeed: PotionID = "swiftness"; break;
case cEntityEffect::effFireResistance: PotionID = "fire_resistance"; break;
case cEntityEffect::effPoison: PotionID = "poison"; break;
case cEntityEffect::effInstantHealth: PotionID = "healing"; break;
case cEntityEffect::effNightVision: PotionID = "night_vision"; break;
case cEntityEffect::effWeakness: PotionID = "weakness"; break;
case cEntityEffect::effStrength: PotionID = "strength"; break;
case cEntityEffect::effSlowness: PotionID = "slowness"; break;
case cEntityEffect::effJumpBoost: PotionID = "leaping"; break;
case cEntityEffect::effInstantDamage: PotionID = "harming"; break;
case cEntityEffect::effWaterBreathing: PotionID = "water_breathing"; break;
case cEntityEffect::effInvisibility: PotionID = "invisibility"; break;
}
if (cEntityEffect::GetPotionEffectIntensity(a_Item.m_ItemDamage) == 1)
{
PotionID = "strong_" + PotionID;
}
else if (a_Item.m_ItemDamage & 0x40)
{
// Extended potion bit
PotionID = "long_" + PotionID;
}
}
else
{
// Empty potions: Water bottles and other base ones
if (a_Item.m_ItemDamage == 0)
{
// No other bits set; thus it's a water bottle
PotionID = "water";
}
else
{
switch (a_Item.m_ItemDamage & 0x3f)
{
case 0x00: PotionID = "mundane"; break;
case 0x10: PotionID = "awkward"; break;
case 0x20: PotionID = "thick"; break;
}
// Default cases will use "empty" from before.
}
}
PotionID = "minecraft:" + PotionID;
Writer.AddString("Potion", PotionID.c_str());
}
if (a_Item.m_ItemType == E_ITEM_SPAWN_EGG)
{
// Convert entity ID to the name.
eMonsterType MonsterType = cItemSpawnEggHandler::ItemDamageToMonsterType(a_Item.m_ItemDamage);
if (MonsterType != eMonsterType::mtInvalidType)
{
Writer.BeginCompound("EntityTag");
Writer.AddString("id", "minecraft:" + cMonster::MobTypeToVanillaNBT(MonsterType));
Writer.EndCompound();
}
}
Writer.Finish();
AString Result = Writer.GetResult();
if (Result.size() == 0)
{
a_Pkt.WriteBEInt8(0);
return;
}
a_Pkt.WriteBuf(Result.data(), Result.size());
}
void cProtocol_1_9_0::WriteBlockEntity(cPacketizer & a_Pkt, const cBlockEntity & a_BlockEntity)
{
cFastNBTWriter Writer;
switch (a_BlockEntity.GetBlockType())
{
case E_BLOCK_BEACON:
{
auto & BeaconEntity = reinterpret_cast<const cBeaconEntity &>(a_BlockEntity);
Writer.AddInt("x", BeaconEntity.GetPosX());
Writer.AddInt("y", BeaconEntity.GetPosY());
Writer.AddInt("z", BeaconEntity.GetPosZ());
Writer.AddInt("Primary", BeaconEntity.GetPrimaryEffect());
Writer.AddInt("Secondary", BeaconEntity.GetSecondaryEffect());
Writer.AddInt("Levels", BeaconEntity.GetBeaconLevel());
Writer.AddString("id", "Beacon"); // "Tile Entity ID" - MC wiki; vanilla server always seems to send this though
break;
}
case E_BLOCK_COMMAND_BLOCK:
{
auto & CommandBlockEntity = reinterpret_cast<const cCommandBlockEntity &>(a_BlockEntity);
Writer.AddByte("TrackOutput", 1); // Neither I nor the MC wiki has any idea about this
Writer.AddInt("SuccessCount", CommandBlockEntity.GetResult());
Writer.AddInt("x", CommandBlockEntity.GetPosX());
Writer.AddInt("y", CommandBlockEntity.GetPosY());
Writer.AddInt("z", CommandBlockEntity.GetPosZ());
Writer.AddString("Command", CommandBlockEntity.GetCommand().c_str());
// You can set custom names for windows in Vanilla
// For a command block, this would be the 'name' prepended to anything it outputs into global chat
// MCS doesn't have this, so just leave it @ '@'. (geddit?)
Writer.AddString("CustomName", "@");
Writer.AddString("id", "Control"); // "Tile Entity ID" - MC wiki; vanilla server always seems to send this though
if (!CommandBlockEntity.GetLastOutput().empty())
{
Writer.AddString("LastOutput", Printf("{\"text\":\"%s\"}", CommandBlockEntity.GetLastOutput().c_str()));
}
break;
}
case E_BLOCK_HEAD:
{
auto & MobHeadEntity = reinterpret_cast<const cMobHeadEntity &>(a_BlockEntity);
Writer.AddInt("x", MobHeadEntity.GetPosX());
Writer.AddInt("y", MobHeadEntity.GetPosY());
Writer.AddInt("z", MobHeadEntity.GetPosZ());
Writer.AddByte("SkullType", MobHeadEntity.GetType() & 0xFF);
Writer.AddByte("Rot", MobHeadEntity.GetRotation() & 0xFF);
Writer.AddString("id", "Skull"); // "Tile Entity ID" - MC wiki; vanilla server always seems to send this though
// The new Block Entity format for a Mob Head. See: http://minecraft.gamepedia.com/Head#Block_entity
Writer.BeginCompound("Owner");
Writer.AddString("Id", MobHeadEntity.GetOwnerUUID());
Writer.AddString("Name", MobHeadEntity.GetOwnerName());
Writer.BeginCompound("Properties");
Writer.BeginList("textures", TAG_Compound);
Writer.BeginCompound("");
Writer.AddString("Signature", MobHeadEntity.GetOwnerTextureSignature());
Writer.AddString("Value", MobHeadEntity.GetOwnerTexture());
Writer.EndCompound();
Writer.EndList();
Writer.EndCompound();
Writer.EndCompound();
break;
}
case E_BLOCK_FLOWER_POT:
{
auto & FlowerPotEntity = reinterpret_cast<const cFlowerPotEntity &>(a_BlockEntity);
Writer.AddInt("x", FlowerPotEntity.GetPosX());
Writer.AddInt("y", FlowerPotEntity.GetPosY());
Writer.AddInt("z", FlowerPotEntity.GetPosZ());
Writer.AddInt("Item", static_cast<Int32>(FlowerPotEntity.GetItem().m_ItemType));
Writer.AddInt("Data", static_cast<Int32>(FlowerPotEntity.GetItem().m_ItemDamage));
Writer.AddString("id", "FlowerPot"); // "Tile Entity ID" - MC wiki; vanilla server always seems to send this though
break;
}
case E_BLOCK_MOB_SPAWNER:
{
auto & MobSpawnerEntity = reinterpret_cast<const cMobSpawnerEntity &>(a_BlockEntity);
Writer.AddInt("x", MobSpawnerEntity.GetPosX());
Writer.AddInt("y", MobSpawnerEntity.GetPosY());
Writer.AddInt("z", MobSpawnerEntity.GetPosZ());
Writer.BeginCompound("SpawnData");
Writer.AddString("id", cMonster::MobTypeToVanillaName(MobSpawnerEntity.GetEntity()));
Writer.EndCompound();
Writer.AddShort("Delay", MobSpawnerEntity.GetSpawnDelay());
Writer.AddString("id", "MobSpawner");
break;
}
default:
{
break;
}
}
Writer.Finish();
a_Pkt.WriteBuf(Writer.GetResult().data(), Writer.GetResult().size());
}
void cProtocol_1_9_0::WriteEntityMetadata(cPacketizer & a_Pkt, const cEntity & a_Entity)
{
// Common metadata:
Int8 Flags = 0;
if (a_Entity.IsOnFire())
{
Flags |= 0x01;
}
if (a_Entity.IsCrouched())
{
Flags |= 0x02;
}
if (a_Entity.IsSprinting())
{
Flags |= 0x08;
}
if (a_Entity.IsRclking())
{
Flags |= 0x10;
}
if (a_Entity.IsInvisible())
{
Flags |= 0x20;
}
a_Pkt.WriteBEUInt8(0); // Index 0
a_Pkt.WriteBEUInt8(METADATA_TYPE_BYTE); // Type
a_Pkt.WriteBEInt8(Flags);
switch (a_Entity.GetEntityType())
{
case cEntity::etPlayer:
{
auto & Player = reinterpret_cast<const cPlayer &>(a_Entity);
// TODO Set player custom name to their name.
// Then it's possible to move the custom name of mobs to the entities
// and to remove the "special" player custom name.
a_Pkt.WriteBEUInt8(2); // Index 2: Custom name
a_Pkt.WriteBEUInt8(METADATA_TYPE_STRING);
a_Pkt.WriteString(Player.GetName());
a_Pkt.WriteBEUInt8(6); // Index 6: Health
a_Pkt.WriteBEUInt8(METADATA_TYPE_FLOAT);
a_Pkt.WriteBEFloat(static_cast<float>(Player.GetHealth()));
a_Pkt.WriteBEUInt8(12);
a_Pkt.WriteBEUInt8(METADATA_TYPE_BYTE);
a_Pkt.WriteBEUInt8(static_cast<UInt8>(Player.GetSkinParts()));
a_Pkt.WriteBEUInt8(13);
a_Pkt.WriteBEUInt8(METADATA_TYPE_BYTE);
a_Pkt.WriteBEUInt8(static_cast<UInt8>(Player.GetMainHand()));
break;
}
case cEntity::etPickup:
{
a_Pkt.WriteBEUInt8(5); // Index 5: Item
a_Pkt.WriteBEUInt8(METADATA_TYPE_ITEM);
WriteItem(a_Pkt, reinterpret_cast<const cPickup &>(a_Entity).GetItem());
break;
}
case cEntity::etMinecart:
{
a_Pkt.WriteBEUInt8(5); // Index 5: Shaking power
a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT);
// The following expression makes Minecarts shake more with less health or higher damage taken
auto & Minecart = reinterpret_cast<const cMinecart &>(a_Entity);
auto maxHealth = a_Entity.GetMaxHealth();
auto curHealth = a_Entity.GetHealth();
a_Pkt.WriteVarInt32(static_cast<UInt32>((maxHealth - curHealth) * Minecart.LastDamage() * 4));
a_Pkt.WriteBEUInt8(6); // Index 6: Shaking direction (doesn't seem to effect anything)
a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT);
a_Pkt.WriteVarInt32(1);
a_Pkt.WriteBEUInt8(7); // Index 7: Shake multiplier / damage taken
a_Pkt.WriteBEUInt8(METADATA_TYPE_FLOAT);
a_Pkt.WriteBEFloat(static_cast<float>(Minecart.LastDamage() + 10));
if (Minecart.GetPayload() == cMinecart::mpNone)
{
auto & RideableMinecart = reinterpret_cast<const cRideableMinecart &>(Minecart);
const cItem & MinecartContent = RideableMinecart.GetContent();
if (!MinecartContent.IsEmpty())
{
a_Pkt.WriteBEUInt8(8); // Index 8: Block ID and damage
a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT);
int Content = MinecartContent.m_ItemType;
Content |= MinecartContent.m_ItemDamage << 8;
a_Pkt.WriteVarInt32(static_cast<UInt32>(Content));
a_Pkt.WriteBEUInt8(9); // Index 9: Block ID and damage
a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT);
a_Pkt.WriteVarInt32(static_cast<UInt32>(RideableMinecart.GetBlockHeight()));
a_Pkt.WriteBEUInt8(10); // Index 10: Show block
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(true);
}
}
else if (Minecart.GetPayload() == cMinecart::mpFurnace)
{
a_Pkt.WriteBEUInt8(11); // Index 11: Is powered
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(reinterpret_cast<const cMinecartWithFurnace &>(Minecart).IsFueled());
}
break;
} // case etMinecart
case cEntity::etProjectile:
{
auto & Projectile = reinterpret_cast<const cProjectileEntity &>(a_Entity);
switch (Projectile.GetProjectileKind())
{
case cProjectileEntity::pkArrow:
{
a_Pkt.WriteBEUInt8(5); // Index 5: Is critical
a_Pkt.WriteBEUInt8(METADATA_TYPE_BYTE);
a_Pkt.WriteBEInt8(reinterpret_cast<const cArrowEntity &>(Projectile).IsCritical() ? 1 : 0);
break;
}
case cProjectileEntity::pkFirework:
{
a_Pkt.WriteBEUInt8(5); // Index 5: Firework item used for this firework
a_Pkt.WriteBEUInt8(METADATA_TYPE_ITEM);
WriteItem(a_Pkt, reinterpret_cast<const cFireworkEntity &>(Projectile).GetItem());
break;
}
case cProjectileEntity::pkSplashPotion:
{
a_Pkt.WriteBEUInt8(5); // Index 5: Potion item which was thrown
a_Pkt.WriteBEUInt8(METADATA_TYPE_ITEM);
WriteItem(a_Pkt, reinterpret_cast<const cSplashPotionEntity &>(Projectile).GetItem());
}
default:
{
break;
}
}
break;
} // case etProjectile
case cEntity::etMonster:
{
WriteMobMetadata(a_Pkt, reinterpret_cast<const cMonster &>(a_Entity));
break;
}
case cEntity::etBoat:
{
auto & Boat = reinterpret_cast<const cBoat &>(a_Entity);
a_Pkt.WriteBEInt8(5); // Index 6: Time since last hit
a_Pkt.WriteBEInt8(METADATA_TYPE_VARINT);
a_Pkt.WriteVarInt32(static_cast<UInt32>(Boat.GetLastDamage()));
a_Pkt.WriteBEInt8(6); // Index 7: Forward direction
a_Pkt.WriteBEInt8(METADATA_TYPE_VARINT);
a_Pkt.WriteVarInt32(static_cast<UInt32>(Boat.GetForwardDirection()));
a_Pkt.WriteBEInt8(7); // Index 8: Damage taken
a_Pkt.WriteBEInt8(METADATA_TYPE_FLOAT);
a_Pkt.WriteBEFloat(Boat.GetDamageTaken());
a_Pkt.WriteBEInt8(8); // Index 9: Type
a_Pkt.WriteBEInt8(METADATA_TYPE_VARINT);
a_Pkt.WriteVarInt32(static_cast<UInt32>(Boat.GetMaterial()));
a_Pkt.WriteBEInt8(9); // Index 10: Right paddle turning
a_Pkt.WriteBEInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Boat.IsRightPaddleUsed());
a_Pkt.WriteBEInt8(10); // Index 11: Left paddle turning
a_Pkt.WriteBEInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Boat.IsLeftPaddleUsed());
break;
} // case etBoat
case cEntity::etItemFrame:
{
auto & Frame = reinterpret_cast<const cItemFrame &>(a_Entity);
a_Pkt.WriteBEUInt8(5); // Index 5: Item
a_Pkt.WriteBEUInt8(METADATA_TYPE_ITEM);
WriteItem(a_Pkt, Frame.GetItem());
a_Pkt.WriteBEUInt8(6); // Index 6: Rotation
a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT);
a_Pkt.WriteVarInt32(Frame.GetItemRotation());
break;
} // case etItemFrame
default:
{
break;
}
}
}
void cProtocol_1_9_0::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_Mob)
{
// Living Enitiy Metadata
if (a_Mob.HasCustomName())
{
// TODO: As of 1.9 _all_ entities can have custom names; should this be moved up?
a_Pkt.WriteBEUInt8(2); // Index 2: Custom name
a_Pkt.WriteBEUInt8(METADATA_TYPE_STRING);
a_Pkt.WriteString(a_Mob.GetCustomName());
a_Pkt.WriteBEUInt8(3); // Index 3: Custom name always visible
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(a_Mob.IsCustomNameAlwaysVisible());
}
a_Pkt.WriteBEUInt8(6); // Index 6: Health
a_Pkt.WriteBEUInt8(METADATA_TYPE_FLOAT);
a_Pkt.WriteBEFloat(static_cast<float>(a_Mob.GetHealth()));
switch (a_Mob.GetMobType())
{
case mtBat:
{
auto & Bat = reinterpret_cast<const cBat &>(a_Mob);
a_Pkt.WriteBEUInt8(11); // Index 11: Bat flags - currently only hanging
a_Pkt.WriteBEUInt8(METADATA_TYPE_BYTE);
a_Pkt.WriteBEInt8(Bat.IsHanging() ? 1 : 0);
break;
} // case mtBat
case mtCreeper:
{
auto & Creeper = reinterpret_cast<const cCreeper &>(a_Mob);
a_Pkt.WriteBEUInt8(11); // Index 11: State (idle or "blowing")
a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT);
a_Pkt.WriteVarInt32(Creeper.IsBlowing() ? 1 : 0xffffffff);
a_Pkt.WriteBEUInt8(12); // Index 12: Is charged
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Creeper.IsCharged());
a_Pkt.WriteBEUInt8(13); // Index 13: Is ignited
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Creeper.IsBurnedWithFlintAndSteel());
break;
} // case mtCreeper
case mtEnderman:
{
auto & Enderman = reinterpret_cast<const cEnderman &>(a_Mob);
a_Pkt.WriteBEUInt8(11); // Index 11: Carried block
a_Pkt.WriteBEUInt8(METADATA_TYPE_BLOCKID);
UInt32 Carried = 0;
Carried |= static_cast<UInt32>(Enderman.GetCarriedBlock() << 4);
Carried |= Enderman.GetCarriedMeta();
a_Pkt.WriteVarInt32(Carried);
a_Pkt.WriteBEUInt8(12); // Index 12: Is screaming
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Enderman.IsScreaming());
break;
} // case mtEnderman
case mtGhast:
{
auto & Ghast = reinterpret_cast<const cGhast &>(a_Mob);
a_Pkt.WriteBEUInt8(11); // Is attacking
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Ghast.IsCharging());
break;
} // case mtGhast
case mtHorse:
{
auto & Horse = reinterpret_cast<const cHorse &>(a_Mob);
Int8 Flags = 0;
if (Horse.IsTame())
{
Flags |= 0x02;
}
if (Horse.IsSaddled())
{
Flags |= 0x04;
}
if (Horse.IsChested())
{
Flags |= 0x08;
}
if (Horse.IsEating())
{
Flags |= 0x20;
}
if (Horse.IsRearing())
{
Flags |= 0x40;
}
if (Horse.IsMthOpen())
{
Flags |= 0x80;
}
a_Pkt.WriteBEUInt8(12); // Index 12: flags
a_Pkt.WriteBEUInt8(METADATA_TYPE_BYTE);
a_Pkt.WriteBEInt8(Flags);
a_Pkt.WriteBEUInt8(13); // Index 13: Variant / type
a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT);
a_Pkt.WriteVarInt32(static_cast<UInt32>(Horse.GetHorseType()));
a_Pkt.WriteBEUInt8(14); // Index 14: Color / style
a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT);
int Appearance = 0;
Appearance = Horse.GetHorseColor();
Appearance |= Horse.GetHorseStyle() << 8;
a_Pkt.WriteVarInt32(static_cast<UInt32>(Appearance));
a_Pkt.WriteBEUInt8(16); // Index 16: Armor
a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT);
a_Pkt.WriteVarInt32(static_cast<UInt32>(Horse.GetHorseArmour()));
a_Pkt.WriteBEUInt8(11); // Index 11: Is baby
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Horse.IsBaby());
break;
} // case mtHorse
case mtMagmaCube:
{
auto & MagmaCube = reinterpret_cast<const cMagmaCube &>(a_Mob);
a_Pkt.WriteBEUInt8(11); // Index 11: Size
a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT);
a_Pkt.WriteVarInt32(static_cast<UInt32>(MagmaCube.GetSize()));
break;
} // case mtMagmaCube
case mtOcelot:
{
auto & Ocelot = reinterpret_cast<const cOcelot &>(a_Mob);
a_Pkt.WriteBEUInt8(11); // Index 11: Is baby
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Ocelot.IsBaby());
break;
} // case mtOcelot
case mtCow:
{
auto & Cow = reinterpret_cast<const cCow &>(a_Mob);
a_Pkt.WriteBEUInt8(11); // Index 11: Is baby
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Cow.IsBaby());
break;
} // case mtCow
case mtChicken:
{
auto & Chicken = reinterpret_cast<const cChicken &>(a_Mob);
a_Pkt.WriteBEUInt8(11); // Index 11: Is baby
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Chicken.IsBaby());
break;
} // case mtChicken
case mtPig:
{
auto & Pig = reinterpret_cast<const cPig &>(a_Mob);
a_Pkt.WriteBEUInt8(11); // Index 11: Is baby
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Pig.IsBaby());
a_Pkt.WriteBEUInt8(12); // Index 12: Is saddled
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Pig.IsSaddled());
break;
} // case mtPig
case mtSheep:
{
auto & Sheep = reinterpret_cast<const cSheep &>(a_Mob);
a_Pkt.WriteBEUInt8(11); // Index 11: Is baby
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Sheep.IsBaby());
a_Pkt.WriteBEUInt8(12); // Index 12: sheared, color
a_Pkt.WriteBEUInt8(METADATA_TYPE_BYTE);
Int8 SheepMetadata = 0;
SheepMetadata = static_cast<Int8>(Sheep.GetFurColor());
if (Sheep.IsSheared())
{
SheepMetadata |= 0x10;
}
a_Pkt.WriteBEInt8(SheepMetadata);
break;
} // case mtSheep
case mtRabbit:
{
auto & Rabbit = reinterpret_cast<const cRabbit &>(a_Mob);
a_Pkt.WriteBEUInt8(11); // Index 11: Is baby
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Rabbit.IsBaby());
a_Pkt.WriteBEUInt8(12); // Index 12: Type
a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT);
a_Pkt.WriteVarInt32(static_cast<UInt32>(Rabbit.GetRabbitType()));
break;
} // case mtRabbit
case mtSkeleton:
{
auto & Skeleton = reinterpret_cast<const cSkeleton &>(a_Mob);
a_Pkt.WriteBEUInt8(11); // Index 11: Type
a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT);
a_Pkt.WriteVarInt32(Skeleton.IsWither() ? 1 : 0);
break;
} // case mtSkeleton
case mtSlime:
{
auto & Slime = reinterpret_cast<const cSlime &>(a_Mob);
a_Pkt.WriteBEUInt8(11); // Index 11: Size
a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT);
a_Pkt.WriteVarInt32(static_cast<UInt32>(Slime.GetSize()));
break;
} // case mtSlime
case mtVillager:
{
auto & Villager = reinterpret_cast<const cVillager &>(a_Mob);
a_Pkt.WriteBEUInt8(11); // Index 11: Is baby
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Villager.IsBaby());
a_Pkt.WriteBEUInt8(12); // Index 12: Type
a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT);
a_Pkt.WriteVarInt32(static_cast<UInt32>(Villager.GetVilType()));
break;
} // case mtVillager
case mtWitch:
{
auto & Witch = reinterpret_cast<const cWitch &>(a_Mob);
a_Pkt.WriteBEUInt8(11); // Index 11: Is angry
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Witch.IsAngry());
break;
} // case mtWitch
case mtWither:
{
auto & Wither = reinterpret_cast<const cWither &>(a_Mob);
a_Pkt.WriteBEUInt8(14); // Index 14: Invulnerable ticks
a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT);
a_Pkt.WriteVarInt32(Wither.GetWitherInvulnerableTicks());
// TODO: Use boss bar packet for health
break;
} // case mtWither
case mtWolf:
{
auto & Wolf = reinterpret_cast<const cWolf &>(a_Mob);
a_Pkt.WriteBEUInt8(11); // Index 11: Is baby
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Wolf.IsBaby());
Int8 WolfStatus = 0;
if (Wolf.IsSitting())
{
WolfStatus |= 0x1;
}
if (Wolf.IsAngry())
{
WolfStatus |= 0x2;
}
if (Wolf.IsTame())
{
WolfStatus |= 0x4;
}
a_Pkt.WriteBEUInt8(12); // Index 12: status
a_Pkt.WriteBEUInt8(METADATA_TYPE_BYTE);
a_Pkt.WriteBEInt8(WolfStatus);
a_Pkt.WriteBEUInt8(14); // Index 14: Health
a_Pkt.WriteBEUInt8(METADATA_TYPE_FLOAT);
a_Pkt.WriteBEFloat(static_cast<float>(a_Mob.GetHealth()));
a_Pkt.WriteBEUInt8(15); // Index 15: Is begging
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Wolf.IsBegging());
a_Pkt.WriteBEUInt8(16); // Index 16: Collar color
a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT);
a_Pkt.WriteVarInt32(static_cast<UInt32>(Wolf.GetCollarColor()));
break;
} // case mtWolf
case mtZombie:
{
auto & Zombie = reinterpret_cast<const cZombie &>(a_Mob);
a_Pkt.WriteBEUInt8(11); // Index 11: Is baby
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Zombie.IsBaby());
a_Pkt.WriteBEUInt8(12); // Index 12: Is a villager
a_Pkt.WriteBEUInt8(METADATA_TYPE_VARINT);
a_Pkt.WriteVarInt32(Zombie.IsVillagerZombie() ? 1 : 0); // TODO: This actually encodes the zombie villager profession, but that isn't implemented yet.
a_Pkt.WriteBEUInt8(13); // Index 13: Is converting
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(Zombie.IsConverting());
break;
} // case mtZombie
case mtZombiePigman:
{
auto & ZombiePigman = reinterpret_cast<const cZombiePigman &>(a_Mob);
a_Pkt.WriteBEUInt8(11); // Index 11: Is baby
a_Pkt.WriteBEUInt8(METADATA_TYPE_BOOL);
a_Pkt.WriteBool(ZombiePigman.IsBaby());
break;
} // case mtZombiePigman
} // switch (a_Mob.GetType())
}
void cProtocol_1_9_0::WriteEntityProperties(cPacketizer & a_Pkt, const cEntity & a_Entity)
{
if (!a_Entity.IsMob())
{
// No properties for anything else than mobs
a_Pkt.WriteBEInt32(0);
return;
}
// const cMonster & Mob = (const cMonster &)a_Entity;
// TODO: Send properties and modifiers based on the mob type
a_Pkt.WriteBEInt32(0); // NumProperties
}
////////////////////////////////////////////////////////////////////////////////
// cProtocol_1_9_1:
cProtocol_1_9_1::cProtocol_1_9_1(cClientHandle * a_Client, const AString & a_ServerAddress, UInt16 a_ServerPort, UInt32 a_State) :
super(a_Client, a_ServerAddress, a_ServerPort, a_State)
{
}
void cProtocol_1_9_1::SendLogin(const cPlayer & a_Player, const cWorld & a_World)
{
// Send the Join Game packet:
{
cServer * Server = cRoot::Get()->GetServer();
cPacketizer Pkt(*this, 0x23); // Join Game packet
Pkt.WriteBEUInt32(a_Player.GetUniqueID());
Pkt.WriteBEUInt8(static_cast<UInt8>(a_Player.GetEffectiveGameMode()) | (Server->IsHardcore() ? 0x08 : 0)); // Hardcore flag bit 4
Pkt.WriteBEInt32(static_cast<Int32>(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, 0x43); // Spawn Position packet
Pkt.WritePosition64(FloorC(a_World.GetSpawnX()), FloorC(a_World.GetSpawnY()), FloorC(a_World.GetSpawnZ()));
}
// Send the server difficulty:
{
cPacketizer Pkt(*this, 0x0d); // Server difficulty packet
Pkt.WriteBEInt8(1);
}
// Send player abilities:
SendPlayerAbilities();
}
void cProtocol_1_9_1::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer)
{
cServer * Server = cRoot::Get()->GetServer();
AString ServerDescription = Server->GetDescription();
auto NumPlayers = static_cast<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;
Version["name"] = "Cuberite 1.9.1";
Version["protocol"] = 108;
// Players:
Json::Value Players;
Players["online"] = NumPlayers;
Players["max"] = MaxPlayers;
// TODO: Add "sample"
// Description:
Json::Value Description;
Description["text"] = ServerDescription.c_str();
// Create the response:
Json::Value ResponseValue;
ResponseValue["version"] = Version;
ResponseValue["players"] = Players;
ResponseValue["description"] = Description;
if (!Favicon.empty())
{
ResponseValue["favicon"] = Printf("data:image/png;base64,%s", Favicon.c_str());
}
Json::FastWriter Writer;
AString Response = Writer.write(ResponseValue);
cPacketizer Pkt(*this, 0x00); // Response packet
Pkt.WriteString(Response);
}
////////////////////////////////////////////////////////////////////////////////
// cProtocol_1_9_2:
cProtocol_1_9_2::cProtocol_1_9_2(cClientHandle * a_Client, const AString & a_ServerAddress, UInt16 a_ServerPort, UInt32 a_State) :
super(a_Client, a_ServerAddress, a_ServerPort, a_State)
{
}
void cProtocol_1_9_2::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer)
{
cServer * Server = cRoot::Get()->GetServer();
AString ServerDescription = Server->GetDescription();
auto NumPlayers = static_cast<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;
Version["name"] = "Cuberite 1.9.2";
Version["protocol"] = 109;
// Players:
Json::Value Players;
Players["online"] = NumPlayers;
Players["max"] = MaxPlayers;
// TODO: Add "sample"
// Description:
Json::Value Description;
Description["text"] = ServerDescription.c_str();
// Create the response:
Json::Value ResponseValue;
ResponseValue["version"] = Version;
ResponseValue["players"] = Players;
ResponseValue["description"] = Description;
if (!Favicon.empty())
{
ResponseValue["favicon"] = Printf("data:image/png;base64,%s", Favicon.c_str());
}
Json::FastWriter Writer;
AString Response = Writer.write(ResponseValue);
cPacketizer Pkt(*this, 0x00); // Response packet
Pkt.WriteString(Response);
}
////////////////////////////////////////////////////////////////////////////////
// cProtocol_1_9_4:
cProtocol_1_9_4::cProtocol_1_9_4(cClientHandle * a_Client, const AString & a_ServerAddress, UInt16 a_ServerPort, UInt32 a_State) :
super(a_Client, a_ServerAddress, a_ServerPort, a_State)
{
}
void cProtocol_1_9_4::HandlePacketStatusRequest(cByteBuffer & a_ByteBuffer)
{
cServer * Server = cRoot::Get()->GetServer();
AString ServerDescription = Server->GetDescription();
auto NumPlayers = static_cast<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;
Version["name"] = "Cuberite 1.9.4";
Version["protocol"] = 110;
// Players:
Json::Value Players;
Players["online"] = NumPlayers;
Players["max"] = MaxPlayers;
// TODO: Add "sample"
// Description:
Json::Value Description;
Description["text"] = ServerDescription.c_str();
// Create the response:
Json::Value ResponseValue;
ResponseValue["version"] = Version;
ResponseValue["players"] = Players;
ResponseValue["description"] = Description;
if (!Favicon.empty())
{
ResponseValue["favicon"] = Printf("data:image/png;base64,%s", Favicon.c_str());
}
Json::FastWriter Writer;
AString Response = Writer.write(ResponseValue);
cPacketizer Pkt(*this, 0x00); // Response packet
Pkt.WriteString(Response);
}
void cProtocol_1_9_4::SendCollectEntity(const cEntity & a_Entity, const cPlayer & a_Player, int a_Count)
{
UNUSED(a_Count);
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x48); // Collect Item packet
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteVarInt32(a_Player.GetUniqueID());
}
void cProtocol_1_9_4::SendChunkData(int a_ChunkX, int a_ChunkZ, cChunkDataSerializer & a_Serializer)
{
ASSERT(m_State == 3); // In game mode?
// Serialize first, before creating the Packetizer (the packetizer locks a CS)
// This contains the flags and bitmasks, too
const AString & ChunkData = a_Serializer.Serialize(cChunkDataSerializer::RELEASE_1_9_4, a_ChunkX, a_ChunkZ);
cCSLock Lock(m_CSPacket);
SendData(ChunkData.data(), ChunkData.size());
}
void cProtocol_1_9_4::SendEntityEffect(const cEntity & a_Entity, int a_EffectID, int a_Amplifier, short a_Duration)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x4b); // Entity Effect packet
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteBEUInt8(static_cast<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_9_4::SendEntityProperties(const cEntity & a_Entity)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x4a); // Entity Properties packet
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
WriteEntityProperties(Pkt, a_Entity);
}
void cProtocol_1_9_4::SendPlayerMaxSpeed(void)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x4a); // Entity Properties
cPlayer * Player = m_Client->GetPlayer();
Pkt.WriteVarInt32(Player->GetUniqueID());
Pkt.WriteBEInt32(1); // Count
Pkt.WriteString("generic.movementSpeed");
// The default game speed is 0.1, multiply that value by the relative speed:
Pkt.WriteBEDouble(0.1 * Player->GetNormalMaxSpeed());
if (Player->IsSprinting())
{
Pkt.WriteVarInt32(1); // Modifier count
Pkt.WriteBEUInt64(0x662a6b8dda3e4c1c);
Pkt.WriteBEUInt64(0x881396ea6097278d); // UUID of the modifier
Pkt.WriteBEDouble(Player->GetSprintingMaxSpeed() - Player->GetNormalMaxSpeed());
Pkt.WriteBEUInt8(2);
}
else
{
Pkt.WriteVarInt32(0); // Modifier count
}
}
void cProtocol_1_9_4::SendTeleportEntity(const cEntity & a_Entity)
{
ASSERT(m_State == 3); // In game mode?
cPacketizer Pkt(*this, 0x49); // Entity teleport packet
Pkt.WriteVarInt32(a_Entity.GetUniqueID());
Pkt.WriteBEDouble(a_Entity.GetPosX());
Pkt.WriteBEDouble(a_Entity.GetPosY());
Pkt.WriteBEDouble(a_Entity.GetPosZ());
Pkt.WriteByteAngle(a_Entity.GetYaw());
Pkt.WriteByteAngle(a_Entity.GetPitch());
Pkt.WriteBool(a_Entity.IsOnGround());
}
void cProtocol_1_9_4::SendUpdateSign(int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4)
{
ASSERT(m_State == 3); // In game mode?
// 1.9.4 removed the update sign packet and now uses Update Block Entity
cPacketizer Pkt(*this, 0x09); // Update tile entity packet
Pkt.WritePosition64(a_BlockX, a_BlockY, a_BlockZ);
Pkt.WriteBEUInt8(9); // Action 9 - update sign
cFastNBTWriter Writer;
Writer.AddInt("x", a_BlockX);
Writer.AddInt("y", a_BlockY);
Writer.AddInt("z", a_BlockZ);
Writer.AddString("id", "Sign");
Json::StyledWriter JsonWriter;
Json::Value Line1;
Line1["text"] = a_Line1;
Writer.AddString("Text1", JsonWriter.write(Line1));
Json::Value Line2;
Line2["text"] = a_Line2;
Writer.AddString("Text2", JsonWriter.write(Line2));
Json::Value Line3;
Line3["text"] = a_Line3;
Writer.AddString("Text3", JsonWriter.write(Line3));
Json::Value Line4;
Line4["text"] = a_Line4;
Writer.AddString("Text4", JsonWriter.write(Line4));
Writer.Finish();
Pkt.WriteBuf(Writer.GetResult().data(), Writer.GetResult().size());
}
