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Protocol17x.cpp
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Protocol17x.cpp
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// Protocol17x.cpp
/*
Implements the 1.7.x protocol classes:
- cProtocol172
- release 1.7.2 protocol (#4)
(others may be added later in the future for the 1.7 release series)
*/
#include "Globals.h"
#include "Protocol17x.h"
#include "ChunkDataSerializer.h"
#include "../ClientHandle.h"
#include "../Root.h"
#include "../Server.h"
#include "../World.h"
#include "../WorldStorage/FastNBT.h"
#include "../StringCompression.h"
#include "../Entities/FallingBlock.h"
#include "../Entities/Pickup.h"
#include "../Entities/Player.h"
#include "../Mobs/IncludeAllMonsters.h"
#include "../UI/Window.h"
#define HANDLE_READ(Proc, Type, Var) \
Type Var; \
m_ReceivedData.Proc(Var);
#define HANDLE_PACKET_READ(Proc, Type, Var) \
Type Var; \
{ \
if (!m_ReceivedData.Proc(Var)) \
{ \
m_ReceivedData.CheckValid(); \
return false; \
} \
m_ReceivedData.CheckValid(); \
}
cProtocol172::cProtocol172(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_ReceivedData(32 KiB),
m_OutPacketBuffer(64 KiB),
m_OutPacketLenBuffer(20), // 20 bytes is more than enough for one VarInt
m_IsEncrypted(false)
{
}
void cProtocol172::DataReceived(const char * a_Data, int a_Size)
{
if (m_IsEncrypted)
{
byte Decrypted[512];
while (a_Size > 0)
{
int NumBytes = (a_Size > sizeof(Decrypted)) ? sizeof(Decrypted) : a_Size;
m_Decryptor.ProcessData(Decrypted, (byte *)a_Data, NumBytes);
AddReceivedData((const char *)Decrypted, NumBytes);
a_Size -= NumBytes;
a_Data += NumBytes;
}
}
else
{
AddReceivedData(a_Data, a_Size);
}
}
void cProtocol172::SendAttachEntity(const cEntity & a_Entity, const cEntity * a_Vehicle)
{
cPacketizer Pkt(*this, 0x1b); // Attach Entity packet
Pkt.WriteInt(a_Entity.GetUniqueID());
Pkt.WriteInt((a_Vehicle != NULL) ? a_Vehicle->GetUniqueID() : 0);
Pkt.WriteBool(false);
}
void cProtocol172::SendBlockAction(int a_BlockX, int a_BlockY, int a_BlockZ, char a_Byte1, char a_Byte2, BLOCKTYPE a_BlockType)
{
cPacketizer Pkt(*this, 0x24); // Block Action packet
Pkt.WriteInt(a_BlockX);
Pkt.WriteShort(a_BlockY);
Pkt.WriteInt(a_BlockZ);
Pkt.WriteByte(a_Byte1);
Pkt.WriteByte(a_Byte2);
Pkt.WriteVarInt(a_BlockType);
}
void cProtocol172::SendBlockBreakAnim(int a_EntityID, int a_BlockX, int a_BlockY, int a_BlockZ, char a_Stage)
{
cPacketizer Pkt(*this, 0x24); // Block Break Animation packet
Pkt.WriteInt(a_EntityID);
Pkt.WriteInt(a_BlockX);
Pkt.WriteInt(a_BlockY);
Pkt.WriteInt(a_BlockZ);
Pkt.WriteChar(a_Stage);
}
void cProtocol172::SendBlockChange(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
{
cPacketizer Pkt(*this, 0x23); // Block Change packet
Pkt.WriteInt(a_BlockX);
Pkt.WriteByte(a_BlockY);
Pkt.WriteInt(a_BlockZ);
Pkt.WriteVarInt(a_BlockType);
Pkt.WriteByte(a_BlockMeta);
}
void cProtocol172::SendBlockChanges(int a_ChunkX, int a_ChunkZ, const sSetBlockVector & a_Changes)
{
cPacketizer Pkt(*this, 0x22); // Multi Block Change packet
Pkt.WriteInt(a_ChunkX);
Pkt.WriteInt(a_ChunkZ);
Pkt.WriteShort((short)a_Changes.size());
Pkt.WriteInt(a_Changes.size() * 4);
for (sSetBlockVector::const_iterator itr = a_Changes.begin(), end = a_Changes.end(); itr != end; ++itr)
{
unsigned int Coords = itr->y | (itr->z << 8) | (itr->x << 12);
unsigned int Blocks = itr->BlockMeta | (itr->BlockType << 4);
Pkt.WriteInt((Coords << 16) | Blocks);
} // for itr - a_Changes[]
}
void cProtocol172::SendChat(const AString & a_Message)
{
cPacketizer Pkt(*this, 0x02); // Chat Message packet
Pkt.WriteString(Printf("{\"text\":\"%s\"}", EscapeString(a_Message).c_str()));
}
void cProtocol172::SendChunkData(int a_ChunkX, int a_ChunkZ, cChunkDataSerializer & a_Serializer)
{
// 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_3_2);
cPacketizer Pkt(*this, 0x21); // Chunk Data packet
Pkt.WriteInt(a_ChunkX);
Pkt.WriteInt(a_ChunkZ);
Pkt.WriteBuf(ChunkData.data(), ChunkData.size());
}
void cProtocol172::SendCollectPickup(const cPickup & a_Pickup, const cPlayer & a_Player)
{
cPacketizer Pkt(*this, 0x0d); // Collect Item packet
Pkt.WriteInt(a_Pickup.GetUniqueID());
Pkt.WriteInt(a_Player.GetUniqueID());
}
void cProtocol172::SendDestroyEntity(const cEntity & a_Entity)
{
cPacketizer Pkt(*this, 0x13); // Destroy Entities packet
Pkt.WriteByte(1);
Pkt.WriteInt(a_Entity.GetUniqueID());
}
void cProtocol172::SendDisconnect(const AString & a_Reason)
{
cPacketizer Pkt(*this, 0x40);
Pkt.WriteString(a_Reason);
}
void cProtocol172::SendEditSign(int a_BlockX, int a_BlockY, int a_BlockZ)
{
cPacketizer Pkt(*this, 0x36); // Sign Editor Open packet
Pkt.WriteInt(a_BlockX);
Pkt.WriteInt(a_BlockY);
Pkt.WriteInt(a_BlockZ);
}
void cProtocol172::SendEntityEquipment(const cEntity & a_Entity, short a_SlotNum, const cItem & a_Item)
{
cPacketizer Pkt(*this, 0x04); // Entity Equipment packet
Pkt.WriteInt(a_Entity.GetUniqueID());
Pkt.WriteShort(a_SlotNum);
Pkt.WriteItem(a_Item);
}
void cProtocol172::SendEntityHeadLook(const cEntity & a_Entity)
{
cPacketizer Pkt(*this, 0x19); // Entity Head Look packet
Pkt.WriteInt(a_Entity.GetUniqueID());
Pkt.WriteByteAngle(a_Entity.GetHeadYaw());
}
void cProtocol172::SendEntityLook(const cEntity & a_Entity)
{
cPacketizer Pkt(*this, 0x16); // Entity Look packet
Pkt.WriteInt(a_Entity.GetUniqueID());
Pkt.WriteByteAngle(a_Entity.GetYaw());
Pkt.WriteByteAngle(a_Entity.GetPitch());
}
void cProtocol172::SendEntityMetadata(const cEntity & a_Entity)
{
cPacketizer Pkt(*this, 0x1c); // Entity Metadata packet
Pkt.WriteInt(a_Entity.GetUniqueID());
Pkt.WriteEntityMetadata(a_Entity);
Pkt.WriteByte(0x7f); // The termination byte
}
void cProtocol172::SendEntityProperties(const cEntity & a_Entity)
{
cPacketizer Pkt(*this, 0x20); // Entity Properties packet
Pkt.WriteInt(a_Entity.GetUniqueID());
Pkt.WriteEntityProperties(a_Entity);
}
void cProtocol172::SendEntityRelMove(const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ)
{
cPacketizer Pkt(*this, 0x15); // Entity Relative Move packet
Pkt.WriteInt(a_Entity.GetUniqueID());
Pkt.WriteByte(a_RelX);
Pkt.WriteByte(a_RelY);
Pkt.WriteByte(a_RelZ);
}
void cProtocol172::SendEntityRelMoveLook(const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ)
{
cPacketizer Pkt(*this, 0x17); // Entity Look And Relative Move packet
Pkt.WriteInt(a_Entity.GetUniqueID());
Pkt.WriteByte(a_RelX);
Pkt.WriteByte(a_RelY);
Pkt.WriteByte(a_RelZ);
Pkt.WriteByteAngle(a_Entity.GetYaw());
Pkt.WriteByteAngle(a_Entity.GetPitch());
}
void cProtocol172::SendEntityStatus(const cEntity & a_Entity, char a_Status)
{
cPacketizer Pkt(*this, 0x1a); // Entity Status packet
Pkt.WriteInt(a_Entity.GetUniqueID());
Pkt.WriteChar(a_Status);
}
void cProtocol172::SendEntityVelocity(const cEntity & a_Entity)
{
cPacketizer Pkt(*this, 0x12); // Entity Velocity packet
Pkt.WriteInt(a_Entity.GetUniqueID());
// 400 = 8000 / 20 ... Conversion from our speed in m/s to 8000 m/tick
Pkt.WriteShort((short)(a_Entity.GetSpeedX() * 400));
Pkt.WriteShort((short)(a_Entity.GetSpeedY() * 400));
Pkt.WriteShort((short)(a_Entity.GetSpeedZ() * 400));
}
void cProtocol172::SendExplosion(double a_BlockX, double a_BlockY, double a_BlockZ, float a_Radius, const cVector3iArray & a_BlocksAffected, const Vector3d & a_PlayerMotion)
{
cPacketizer Pkt(*this, 0x27); // Explosion packet
Pkt.WriteFloat((float)a_BlockX);
Pkt.WriteFloat((float)a_BlockY);
Pkt.WriteFloat((float)a_BlockZ);
Pkt.WriteFloat((float)a_Radius);
Pkt.WriteInt(a_BlocksAffected.size());
for (cVector3iArray::const_iterator itr = a_BlocksAffected.begin(), end = a_BlocksAffected.end(); itr != end; ++itr)
{
Pkt.WriteChar((char)itr->x);
Pkt.WriteChar((char)itr->y);
Pkt.WriteChar((char)itr->z);
} // for itr - a_BlockAffected[]
Pkt.WriteFloat((float)a_PlayerMotion.x);
Pkt.WriteFloat((float)a_PlayerMotion.y);
Pkt.WriteFloat((float)a_PlayerMotion.z);
}
void cProtocol172::SendGameMode(eGameMode a_GameMode)
{
cPacketizer Pkt(*this, 0x2b); // Change Game State packet
Pkt.WriteByte(3); // Reason: Change game mode
Pkt.WriteFloat((float)a_GameMode);
}
void cProtocol172::SendHealth(void)
{
cPacketizer Pkt(*this, 0x06); // Update Health packet
Pkt.WriteFloat((float)m_Client->GetPlayer()->GetHealth());
Pkt.WriteShort(m_Client->GetPlayer()->GetFoodLevel());
Pkt.WriteFloat((float)m_Client->GetPlayer()->GetFoodSaturationLevel());
}
void cProtocol172::SendInventorySlot(char a_WindowID, short a_SlotNum, const cItem & a_Item)
{
cPacketizer Pkt(*this, 0x2f); // Set Slot packet
Pkt.WriteChar(a_WindowID);
Pkt.WriteShort(a_SlotNum);
Pkt.WriteItem(a_Item);
}
void cProtocol172::SendKeepAlive(int a_PingID)
{
cPacketizer Pkt(*this, 0x00); // Keep Alive packet
Pkt.WriteInt(a_PingID);
}
void cProtocol172::SendLogin(const cPlayer & a_Player, const cWorld & a_World)
{
// Send the Join Game packet:
{
cPacketizer Pkt(*this, 0x01); // Join Game packet
Pkt.WriteInt(a_Player.GetUniqueID());
Pkt.WriteByte((Byte)a_Player.GetEffectiveGameMode() | (cRoot::Get()->GetServer()->IsHardcore() ? 0x08 : 0)); // Hardcore flag bit 4
Pkt.WriteChar((char)a_World.GetDimension());
Pkt.WriteByte(2); // TODO: Difficulty (set to Normal)
Pkt.WriteByte(cRoot::Get()->GetServer()->GetMaxPlayers());
Pkt.WriteString("default"); // Level type - wtf?
}
// Send the spawn position:
{
cPacketizer Pkt(*this, 0x05); // Spawn Position packet
Pkt.WriteInt((int)a_World.GetSpawnX());
Pkt.WriteInt((int)a_World.GetSpawnY());
Pkt.WriteInt((int)a_World.GetSpawnZ());
}
// Send player abilities:
SendPlayerAbilities();
}
void cProtocol172::SendPickupSpawn(const cPickup & a_Pickup)
{
{
cPacketizer Pkt(*this, 0x0e); // Spawn Object packet
Pkt.WriteVarInt(a_Pickup.GetUniqueID());
Pkt.WriteByte(2); // Type = Pickup
Pkt.WriteFPInt(a_Pickup.GetPosX());
Pkt.WriteFPInt(a_Pickup.GetPosY());
Pkt.WriteFPInt(a_Pickup.GetPosZ());
Pkt.WriteByteAngle(a_Pickup.GetYaw());
Pkt.WriteByteAngle(a_Pickup.GetPitch());
Pkt.WriteInt(0); // No object data
}
{
cPacketizer Pkt(*this, 0x1c); // Entity Metadata packet
Pkt.WriteInt(a_Pickup.GetUniqueID());
Pkt.WriteByte((0x05 << 5) | 10); // Slot type + index 10
Pkt.WriteItem(a_Pickup.GetItem());
Pkt.WriteByte(0x7f); // End of metadata
}
}
void cProtocol172::SendPlayerAbilities(void)
{
cPacketizer Pkt(*this, 0x39); // Player Abilities packet
Byte Flags = 0;
if (m_Client->GetPlayer()->IsGameModeCreative())
{
Flags |= 0x01;
}
// TODO: Other flags (god mode, flying, can fly
Pkt.WriteByte(Flags);
// TODO: Pkt.WriteFloat(m_Client->GetPlayer()->GetMaxFlyingSpeed());
Pkt.WriteFloat(0.05f);
Pkt.WriteFloat((float)m_Client->GetPlayer()->GetMaxSpeed());
}
void cProtocol172::SendPlayerAnimation(const cPlayer & a_Player, char a_Animation)
{
cPacketizer Pkt(*this, 0x0b); // Animation packet
Pkt.WriteVarInt(a_Player.GetUniqueID());
Pkt.WriteChar(a_Animation);
}
void cProtocol172::SendPlayerListItem(const cPlayer & a_Player, bool a_IsOnline)
{
cPacketizer Pkt(*this, 0x38); // Playerlist Item packet
Pkt.WriteString(a_Player.GetName());
Pkt.WriteBool(a_IsOnline);
Pkt.WriteShort(a_Player.GetClientHandle()->GetPing());
}
void cProtocol172::SendPlayerMaxSpeed(void)
{
cPacketizer Pkt(*this, 0x20); // Entity Properties
Pkt.WriteInt(m_Client->GetPlayer()->GetUniqueID());
Pkt.WriteInt(1); // Count
Pkt.WriteString("generic.movementSpeed");
Pkt.WriteDouble(0.1);
if (m_Client->GetPlayer()->IsSprinting())
{
Pkt.WriteShort(1); // Modifier count
Pkt.WriteInt64(0x662a6b8dda3e4c1c);
Pkt.WriteInt64(0x881396ea6097278d); // UUID of the modifier
Pkt.WriteDouble(0.3);
Pkt.WriteByte(2);
}
else
{
Pkt.WriteShort(0); // Modifier count
}
}
void cProtocol172::SendPlayerMoveLook(void)
{
cPacketizer Pkt(*this, 0x08); // Player Position And Look packet
Pkt.WriteDouble(m_Client->GetPlayer()->GetPosX());
Pkt.WriteDouble(m_Client->GetPlayer()->GetPosY());
Pkt.WriteDouble(m_Client->GetPlayer()->GetPosZ());
Pkt.WriteFloat((float)m_Client->GetPlayer()->GetYaw());
Pkt.WriteFloat((float)m_Client->GetPlayer()->GetPitch());
Pkt.WriteBool(m_Client->GetPlayer()->IsOnGround());
}
void cProtocol172::SendPlayerPosition(void)
{
// There is no dedicated packet for this, send the whole thing:
SendPlayerMoveLook();
}
void cProtocol172::SendPlayerSpawn(const cPlayer & a_Player)
{
// Called to spawn another player for the client
cPacketizer Pkt(*this, 0x0c); // Spawn Player packet
Pkt.WriteInt(a_Player.GetUniqueID());
Pkt.WriteString(Printf("%d", a_Player.GetUniqueID())); // TODO: Proper UUID
Pkt.WriteString(a_Player.GetName());
Pkt.WriteFPInt(a_Player.GetPosX());
Pkt.WriteFPInt(a_Player.GetPosY());
Pkt.WriteFPInt(a_Player.GetPosZ());
Pkt.WriteByteAngle(a_Player.GetYaw());
Pkt.WriteByteAngle(a_Player.GetPitch());
short ItemType = a_Player.GetEquippedItem().IsEmpty() ? 0 : a_Player.GetEquippedItem().m_ItemType;
Pkt.WriteShort(ItemType);
Pkt.WriteByte((3 << 5) | 6); // Metadata: float + index 6
Pkt.WriteFloat((float)a_Player.GetHealth());
Pkt.WriteByte(0x7f); // Metadata: end
}
void cProtocol172::SendRespawn(void)
{
cPacketizer Pkt(*this, 0x07); // Respawn packet
Pkt.WriteInt(m_Client->GetPlayer()->GetWorld()->GetDimension());
Pkt.WriteByte(2); // TODO: Difficulty (set to Normal)
Pkt.WriteByte((Byte)m_Client->GetPlayer()->GetEffectiveGameMode());
Pkt.WriteString("default");
}
void cProtocol172::SendSoundEffect(const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch) // a_Src coords are Block * 8
{
cPacketizer Pkt(*this, 0x29); // Sound Effect packet
Pkt.WriteString(a_SoundName);
Pkt.WriteInt(a_SrcX);
Pkt.WriteInt(a_SrcY);
Pkt.WriteInt(a_SrcZ);
Pkt.WriteFloat(a_Volume);
Pkt.WriteByte((Byte)(a_Pitch * 63));
}
void cProtocol172::SendSoundParticleEffect(int a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data)
{
cPacketizer Pkt(*this, 0x28); // Effect packet
Pkt.WriteInt(a_EffectID);
Pkt.WriteInt(a_SrcX / 8);
Pkt.WriteByte(a_SrcY / 8);
Pkt.WriteInt(a_SrcZ / 8);
Pkt.WriteInt(a_Data);
Pkt.WriteBool(false);
}
void cProtocol172::SendSpawnFallingBlock(const cFallingBlock & a_FallingBlock)
{
cPacketizer Pkt(*this, 0x0e); // Spawn Object packet
Pkt.WriteVarInt(a_FallingBlock.GetUniqueID());
Pkt.WriteByte(70); // Falling block
Pkt.WriteFPInt(a_FallingBlock.GetPosX());
Pkt.WriteFPInt(a_FallingBlock.GetPosY());
Pkt.WriteFPInt(a_FallingBlock.GetPosZ());
Pkt.WriteByteAngle(a_FallingBlock.GetYaw());
Pkt.WriteByteAngle(a_FallingBlock.GetPitch());
Pkt.WriteInt(((int)a_FallingBlock.GetBlockType()) | (((int)a_FallingBlock.GetBlockMeta()) << 12));
Pkt.WriteShort((short)(a_FallingBlock.GetSpeedX() * 400));
Pkt.WriteShort((short)(a_FallingBlock.GetSpeedY() * 400));
Pkt.WriteShort((short)(a_FallingBlock.GetSpeedZ() * 400));
}
void cProtocol172::SendSpawnMob(const cMonster & a_Mob)
{
cPacketizer Pkt(*this, 0x0f); // Spawn Mob packet
Pkt.WriteVarInt(a_Mob.GetUniqueID());
Pkt.WriteByte((Byte)a_Mob.GetMobType());
Pkt.WriteFPInt(a_Mob.GetPosX());
Pkt.WriteFPInt(a_Mob.GetPosY());
Pkt.WriteFPInt(a_Mob.GetPosZ());
Pkt.WriteByteAngle(a_Mob.GetPitch());
Pkt.WriteByteAngle(a_Mob.GetHeadYaw());
Pkt.WriteByteAngle(a_Mob.GetYaw());
Pkt.WriteShort((short)(a_Mob.GetSpeedX() * 400));
Pkt.WriteShort((short)(a_Mob.GetSpeedY() * 400));
Pkt.WriteShort((short)(a_Mob.GetSpeedZ() * 400));
Pkt.WriteEntityMetadata(a_Mob);
Pkt.WriteByte(0x7f); // Metadata terminator
}
void cProtocol172::SendSpawnObject(const cEntity & a_Entity, char a_ObjectType, int a_ObjectData, Byte a_Yaw, Byte a_Pitch)
{
cPacketizer Pkt(*this, 0xe); // Spawn Object packet
Pkt.WriteVarInt(a_Entity.GetUniqueID());
Pkt.WriteByte(a_ObjectType);
Pkt.WriteFPInt(a_Entity.GetPosX());
Pkt.WriteFPInt(a_Entity.GetPosY());
Pkt.WriteFPInt(a_Entity.GetPosZ());
Pkt.WriteByteAngle(a_Entity.GetYaw());
Pkt.WriteByteAngle(a_Entity.GetPitch());
Pkt.WriteInt(a_ObjectData);
if (a_ObjectData != 0)
{
Pkt.WriteShort((short)(a_Entity.GetSpeedX() * 400));
Pkt.WriteShort((short)(a_Entity.GetSpeedY() * 400));
Pkt.WriteShort((short)(a_Entity.GetSpeedZ() * 400));
}
}
void cProtocol172::SendSpawnVehicle(const cEntity & a_Vehicle, char a_VehicleType, char a_VehicleSubType)
{
cPacketizer Pkt(*this, 0xe); // Spawn Object packet
Pkt.WriteVarInt(a_Vehicle.GetUniqueID());
Pkt.WriteByte(a_VehicleType);
Pkt.WriteFPInt(a_Vehicle.GetPosX());
Pkt.WriteFPInt(a_Vehicle.GetPosY());
Pkt.WriteFPInt(a_Vehicle.GetPosZ());
Pkt.WriteByteAngle(a_Vehicle.GetYaw());
Pkt.WriteByteAngle(a_Vehicle.GetPitch());
Pkt.WriteInt(a_VehicleSubType);
if (a_VehicleSubType != 0)
{
Pkt.WriteShort((short)(a_Vehicle.GetSpeedX() * 400));
Pkt.WriteShort((short)(a_Vehicle.GetSpeedY() * 400));
Pkt.WriteShort((short)(a_Vehicle.GetSpeedZ() * 400));
}
}
void cProtocol172::SendTabCompletionResults(const AStringVector & a_Results)
{
AString Results;
Results.reserve(500); // Make a moderate reservation to avoid excessive reallocations
for (AStringVector::const_iterator itr = a_Results.begin(), end = a_Results.end(); itr != end; ++itr)
{
Results.append(*itr);
Results.push_back(0);
}
cPacketizer Pkt(*this, 0x3a); // Tab-Complete packet
Pkt.WriteVarInt(a_Results.size());
Pkt.WriteString(Results);
}
void cProtocol172::SendTeleportEntity(const cEntity & a_Entity)
{
cPacketizer Pkt(*this, 0x18);
Pkt.WriteInt(a_Entity.GetUniqueID());
Pkt.WriteFPInt(a_Entity.GetPosX());
Pkt.WriteFPInt(a_Entity.GetPosY());
Pkt.WriteFPInt(a_Entity.GetPosZ());
Pkt.WriteByteAngle(a_Entity.GetYaw());
Pkt.WriteByteAngle(a_Entity.GetPitch());
}
void cProtocol172::SendThunderbolt(int a_BlockX, int a_BlockY, int a_BlockZ)
{
cPacketizer Pkt(*this, 0x2c); // Spawn Global Entity packet
Pkt.WriteVarInt(0); // EntityID = 0, always
Pkt.WriteByte(1); // Type = Thunderbolt
Pkt.WriteFPInt(a_BlockX);
Pkt.WriteFPInt(a_BlockY);
Pkt.WriteFPInt(a_BlockZ);
}
void cProtocol172::SendTimeUpdate(Int64 a_WorldAge, Int64 a_TimeOfDay)
{
cPacketizer Pkt(*this, 0x03);
Pkt.WriteInt64(a_WorldAge);
Pkt.WriteInt64(a_TimeOfDay);
}
void cProtocol172::SendUnloadChunk(int a_ChunkX, int a_ChunkZ)
{
cPacketizer Pkt(*this, 0x21); // Chunk Data packet
Pkt.WriteInt(a_ChunkX);
Pkt.WriteInt(a_ChunkZ);
Pkt.WriteBool(true);
Pkt.WriteShort(0); // Primary bitmap
Pkt.WriteShort(0); // Add bitmap
Pkt.WriteInt(0); // Compressed data size
}
void cProtocol172::SendUpdateSign(int a_BlockX, int a_BlockY, int a_BlockZ, const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4)
{
cPacketizer Pkt(*this, 0x33);
Pkt.WriteInt(a_BlockX);
Pkt.WriteShort((short)a_BlockY);
Pkt.WriteInt(a_BlockZ);
Pkt.WriteString(a_Line1);
Pkt.WriteString(a_Line2);
Pkt.WriteString(a_Line3);
Pkt.WriteString(a_Line4);
}
void cProtocol172::SendUseBed(const cEntity & a_Entity, int a_BlockX, int a_BlockY, int a_BlockZ)
{
cPacketizer Pkt(*this, 0x0a);
Pkt.WriteInt(a_Entity.GetUniqueID());
Pkt.WriteInt(a_BlockX);
Pkt.WriteByte((Byte)a_BlockY);
Pkt.WriteInt(a_BlockZ);
}
void cProtocol172::SendWeather(eWeather a_Weather)
{
cPacketizer Pkt(*this, 0x2b); // Change Game State packet
Pkt.WriteByte((a_Weather == wSunny) ? 2 : 1); // begin rain / end rain
Pkt.WriteFloat(0); // unused
}
void cProtocol172::SendWholeInventory(const cWindow & a_Window)
{
cPacketizer Pkt(*this, 0x30); // Window Items packet
Pkt.WriteChar(a_Window.GetWindowID());
Pkt.WriteShort(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)
{
Pkt.WriteItem(*itr);
} // for itr - Slots[]
}
void cProtocol172::SendWindowClose(const cWindow & a_Window)
{
cPacketizer Pkt(*this, 0x2e);
Pkt.WriteChar(a_Window.GetWindowID());
}
void cProtocol172::SendWindowOpen(const cWindow & a_Window)
{
if (a_Window.GetWindowType() < 0)
{
// Do not send this packet for player inventory windows
return;
}
cPacketizer Pkt(*this, 0x2d);
Pkt.WriteChar(a_Window.GetWindowID());
Pkt.WriteChar(a_Window.GetWindowType());
Pkt.WriteString(a_Window.GetWindowTitle());
Pkt.WriteChar(a_Window.GetNumNonInventorySlots());
Pkt.WriteBool(true);
if (a_Window.GetWindowType() == cWindow::wtAnimalChest)
{
Pkt.WriteInt(0); // TODO: The animal's EntityID
}
}
void cProtocol172::SendWindowProperty(const cWindow & a_Window, short a_Property, short a_Value)
{
cPacketizer Pkt(*this, 0x31); // Window Property packet
Pkt.WriteChar(a_Window.GetWindowID());
Pkt.WriteShort(a_Property);
Pkt.WriteShort(a_Value);
}
void cProtocol172::AddReceivedData(const char * a_Data, int a_Size)
{
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:
while (true)
{
UInt32 PacketLen;
if (!m_ReceivedData.ReadVarInt(PacketLen))
{
// Not enough data
return;
}
if (!m_ReceivedData.CanReadBytes(PacketLen))
{
// The full packet hasn't been received yet
return;
}
UInt32 PacketType;
UInt32 Mark1 = m_ReceivedData.GetReadableSpace();
if (!m_ReceivedData.ReadVarInt(PacketType))
{
// Not enough data
return;
}
UInt32 NumBytesRead = Mark1 - m_ReceivedData.GetReadableSpace();
HandlePacket(PacketType, PacketLen - NumBytesRead);
if (Mark1 - m_ReceivedData.GetReadableSpace() > PacketLen)
{
// Read more than packet length, report as error
m_Client->PacketError(PacketType);
}
// Go to packet end in any case:
m_ReceivedData.ResetRead();
m_ReceivedData.ReadVarInt(PacketType);
m_ReceivedData.SkipRead(PacketLen);
m_ReceivedData.CommitRead();
} // while (true)
}
void cProtocol172::HandlePacket(UInt32 a_PacketType, UInt32 a_RemainingBytes)
{
switch (m_State)
{
case 1:
{
// Status
switch (a_PacketType)
{
case 0x00: HandlePacketStatusRequest(a_RemainingBytes); return;
case 0x01: HandlePacketStatusPing (a_RemainingBytes); return;
}
break;
}
case 2:
{
// Login
switch (a_PacketType)
{
case 0x00: HandlePacketLoginStart(a_RemainingBytes); return;
case 0x01: HandlePacketLoginEncryptionResponse(a_RemainingBytes); return;
}
break;
}
case 3:
{
// Game
switch (a_PacketType)
{
case 0x00: HandlePacketKeepAlive (a_RemainingBytes); return;
case 0x01: HandlePacketChatMessage (a_RemainingBytes); return;
case 0x02: HandlePacketUseEntity (a_RemainingBytes); return;
case 0x03: HandlePacketPlayer (a_RemainingBytes); return;
case 0x04: HandlePacketPlayerPos (a_RemainingBytes); return;
case 0x05: HandlePacketPlayerLook (a_RemainingBytes); return;
case 0x06: HandlePacketPlayerPosLook (a_RemainingBytes); return;
case 0x07: HandlePacketBlockDig (a_RemainingBytes); return;
case 0x08: HandlePacketBlockPlace (a_RemainingBytes); return;
case 0x09: HandlePacketSlotSelect (a_RemainingBytes); return;
case 0x0a: HandlePacketAnimation (a_RemainingBytes); return;
case 0x0b: HandlePacketEntityAction (a_RemainingBytes); return;
case 0x0c: HandlePacketSteerVehicle (a_RemainingBytes); return;
case 0x0d: HandlePacketWindowClose (a_RemainingBytes); return;
case 0x0e: HandlePacketWindowClick (a_RemainingBytes); return;
case 0x0f: // Confirm transaction - not used in MCS
case 0x10: HandlePacketCreativeInventoryAction(a_RemainingBytes); return;
case 0x12: HandlePacketUpdateSign (a_RemainingBytes); return;
case 0x13: HandlePacketPlayerAbilities (a_RemainingBytes); return;
case 0x14: HandlePacketTabComplete (a_RemainingBytes); return;
case 0x15: HandlePacketClientSettings (a_RemainingBytes); return;
case 0x16: HandlePacketClientStatus (a_RemainingBytes); return;
case 0x17: HandlePacketPluginMessage (a_RemainingBytes); return;
}
break;