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cuberite-2a/source/Protocol/Protocol17x.cpp
Tiger Wang 4722a90a0b Possible fix for 1.7 pickup spawning
2013-11-07 18:49:48 +00:00

1673 lines
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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 "../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());
// TODO
*/
}
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());
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.WriteInt(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.WriteInt(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)
{
SendPlayerAbilities();
}
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);
// TODO: Check if this is really an int
// wiki.vg says it's a byte, but that wouldn't cover the entire range needed (Y location * 8 = 0..2048)
Pkt.WriteInt(a_SrcY);
Pkt.WriteInt(a_SrcZ);
Pkt.WriteInt(a_Data);
Pkt.WriteBool(false);
}
void cProtocol172::SendSpawnFallingBlock(const cFallingBlock & a_FallingBlock)
{
cPacketizer Pkt(*this, 0x0e); // Spawn Object packet
Pkt.WriteInt(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.WriteInt(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(char a_WindowID, char a_WindowType, const AString & a_WindowTitle, char a_NumSlots)
{
cPacketizer Pkt(*this, 0x2d);
Pkt.WriteChar(a_WindowID);
Pkt.WriteChar(a_WindowType);
Pkt.WriteString(a_WindowTitle);
Pkt.WriteChar(a_NumSlots);
Pkt.WriteBool(true);
/*
// TODO:
if (a_WindowType == cWindow::wtHorse)
{
Pkt.WriteInt(HorseID);
}
*/
}
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;
}
} // switch (m_State)
// Unknown packet type, report to the client:
m_Client->PacketUnknown(a_PacketType);
m_ReceivedData.SkipRead(a_RemainingBytes);
m_ReceivedData.CommitRead();
}
void cProtocol172::HandlePacketStatusPing(UInt32 a_RemainingBytes)
{
ASSERT(a_RemainingBytes == 8);
if (a_RemainingBytes != 8)
{
m_Client->PacketError(0x01);
m_ReceivedData.SkipRead(a_RemainingBytes);
m_ReceivedData.CommitRead();
return;
}
Int64 Timestamp;
m_ReceivedData.ReadBEInt64(Timestamp);
m_ReceivedData.CommitRead();
cPacketizer Pkt(*this, 0x01); // Ping packet
Pkt.WriteInt64(Timestamp);
}
void cProtocol172::HandlePacketStatusRequest(UInt32 a_RemainingBytes)
{
// No more bytes in this packet
ASSERT(a_RemainingBytes == 0);
m_ReceivedData.CommitRead();
// Send the response:
AString Response = "{\"version\":{\"name\":\"1.7.2\",\"protocol\":4},\"players\":{";
AppendPrintf(Response, "\"max\":%u,\"online\":%u,\"sample\":[]},",
cRoot::Get()->GetServer()->GetMaxPlayers(),
cRoot::Get()->GetServer()->GetNumPlayers()
);
AppendPrintf(Response, "\"description\":{\"text\":\"%s\"}",
cRoot::Get()->GetServer()->GetDescription().c_str()
);
Response.append("}");
cPacketizer Pkt(*this, 0x00); // Response packet
Pkt.WriteString(Response);
}
void cProtocol172::HandlePacketLoginEncryptionResponse(UInt32 a_RemainingBytes)
{
// TODO: Add protocol encryption
}
void cProtocol172::HandlePacketLoginStart(UInt32 a_RemainingBytes)
{
AString Username;
m_ReceivedData.ReadVarUTF8String(Username);
// TODO: Protocol encryption should be set up here if not localhost / auth
// Send login success:
{
cPacketizer Pkt(*this, 0x02); // Login success packet
Pkt.WriteString(Printf("%d", m_Client->GetUniqueID())); // TODO: proper UUID
Pkt.WriteString(Username);
}
m_State = 3; // State = Game
m_Client->HandleLogin(4, Username);
}
void cProtocol172::HandlePacketAnimation(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadBEInt, int, EntityID);
HANDLE_READ(ReadByte, Byte, Animation);
m_Client->HandleAnimation(Animation);
}
void cProtocol172::HandlePacketBlockDig(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadByte, Byte, Status);
HANDLE_READ(ReadBEInt, int, BlockX);
HANDLE_READ(ReadByte, Byte, BlockY);
HANDLE_READ(ReadBEInt, int, BlockZ);
HANDLE_READ(ReadByte, Byte, Face);
m_Client->HandleLeftClick(BlockX, BlockY, BlockZ, Face, Status);
}
void cProtocol172::HandlePacketBlockPlace(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadBEInt, int, BlockX);
HANDLE_READ(ReadByte, Byte, BlockY);
HANDLE_READ(ReadBEInt, int, BlockZ);
HANDLE_READ(ReadByte, Byte, Face);
HANDLE_READ(ReadByte, Byte, CursorX);
HANDLE_READ(ReadByte, Byte, CursorY);
HANDLE_READ(ReadByte, Byte, CursorZ);
m_Client->HandleRightClick(BlockX, BlockY, BlockZ, Face, CursorX, CursorY, CursorZ, m_Client->GetPlayer()->GetEquippedItem());
}
void cProtocol172::HandlePacketChatMessage(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadVarUTF8String, AString, Message);
m_Client->HandleChat(Message);
}
void cProtocol172::HandlePacketClientSettings(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadVarUTF8String, AString, Locale);
HANDLE_READ(ReadByte, Byte, ViewDistance);
HANDLE_READ(ReadByte, Byte, ChatFlags);
HANDLE_READ(ReadByte, Byte, Unused);
HANDLE_READ(ReadByte, Byte, Difficulty);
HANDLE_READ(ReadByte, Byte, ShowCape);
// TODO: handle in m_Client
}
void cProtocol172::HandlePacketClientStatus(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadByte, Byte, ActionID);
switch (ActionID)
{
case 0:
{
// Respawn
m_Client->HandleRespawn();
break;
}
case 1:
{
// Request stats
// TODO
break;
}
case 2:
{
// Open Inventory achievement
// TODO
break;
}
}
}
void cProtocol172::HandlePacketCreativeInventoryAction(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadBEShort, short, SlotNum);
cItem Item;
if (!ReadItem(Item))
{
return;
}
m_Client->HandleCreativeInventory(SlotNum, Item);
}
void cProtocol172::HandlePacketEntityAction(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadBEInt, int, PlayerID);
HANDLE_READ(ReadByte, Byte, Action);
HANDLE_READ(ReadBEInt, int, JumpBoost);
m_Client->HandleEntityAction(PlayerID, Action);
}
void cProtocol172::HandlePacketKeepAlive(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadBEInt, int, KeepAliveID);
m_Client->HandleKeepAlive(KeepAliveID);
}
void cProtocol172::HandlePacketPlayer(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadBool, bool, IsOnGround);
// TODO: m_Client->HandlePlayerOnGround(IsOnGround);
}
void cProtocol172::HandlePacketPlayerAbilities(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadByte, Byte, Flags);
HANDLE_READ(ReadBEFloat, float, FlyingSpeed);
HANDLE_READ(ReadBEFloat, float, WalkingSpeed);
// TODO: m_Client->HandlePlayerAbilities();
}
void cProtocol172::HandlePacketPlayerLook(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadBEFloat, float, Yaw);
HANDLE_READ(ReadBEFloat, float, Pitch);
HANDLE_READ(ReadBool, bool, IsOnGround);
m_Client->HandlePlayerLook(Yaw, Pitch, IsOnGround);
}
void cProtocol172::HandlePacketPlayerPos(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadBEDouble, double, PosX);
HANDLE_READ(ReadBEDouble, double, PosY);
HANDLE_READ(ReadBEDouble, double, Stance);
HANDLE_READ(ReadBEDouble, double, PosZ);
HANDLE_READ(ReadBool, bool, IsOnGround);
m_Client->HandlePlayerPos(PosX, PosY, PosZ, Stance, IsOnGround);
}
void cProtocol172::HandlePacketPlayerPosLook(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadBEDouble, double, PosX);
HANDLE_READ(ReadBEDouble, double, PosY);
HANDLE_READ(ReadBEDouble, double, Stance);
HANDLE_READ(ReadBEDouble, double, PosZ);
HANDLE_READ(ReadBEFloat, float, Yaw);
HANDLE_READ(ReadBEFloat, float, Pitch);
HANDLE_READ(ReadBool, bool, IsOnGround);
m_Client->HandlePlayerMoveLook(PosX, PosY, PosZ, Stance, Yaw, Pitch, IsOnGround);
}
void cProtocol172::HandlePacketPluginMessage(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadVarUTF8String, AString, Channel);
HANDLE_READ(ReadBEShort, short, Length);
AString Data;
m_ReceivedData.ReadString(Data, Length);
// TODO: m_Client->HandlePluginMessage(Channel, Data);
}
void cProtocol172::HandlePacketSlotSelect(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadBEShort, short, SlotNum);
m_Client->HandleSlotSelected(SlotNum);
}
void cProtocol172::HandlePacketSteerVehicle(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadBEFloat, float, Forward);
HANDLE_READ(ReadBEFloat, float, Sideways);
HANDLE_READ(ReadBool, bool, ShouldJump);
HANDLE_READ(ReadBool, bool, ShouldUnmount);
if (ShouldUnmount)
{
m_Client->HandleUnmount();
}
else
{
m_Client->HandleSteerVehicle(Forward, Sideways);
}
}
void cProtocol172::HandlePacketTabComplete(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadVarUTF8String, AString, Text);
m_Client->HandleTabCompletion(Text);
}
void cProtocol172::HandlePacketUpdateSign(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadBEInt, int, BlockX);
HANDLE_READ(ReadBEShort, short, BlockY);
HANDLE_READ(ReadBEInt, int, BlockZ);
HANDLE_READ(ReadVarUTF8String, AString, Line1);
HANDLE_READ(ReadVarUTF8String, AString, Line2);
HANDLE_READ(ReadVarUTF8String, AString, Line3);
HANDLE_READ(ReadVarUTF8String, AString, Line4);
m_Client->HandleUpdateSign(BlockX, BlockY, BlockZ, Line1, Line2, Line3, Line4);
}
void cProtocol172::HandlePacketUseEntity(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadBEInt, int, EntityID);
HANDLE_READ(ReadByte, Byte, MouseButton);
// TODO: Verify that this works, wiki.vg has no info on the MouseButton values
m_Client->HandleUseEntity(EntityID, (MouseButton == 0));
}
void cProtocol172::HandlePacketWindowClick(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadChar, char, WindowID);
HANDLE_READ(ReadBEShort, short, SlotNum);
HANDLE_READ(ReadByte, Byte, Button);
HANDLE_READ(ReadBEShort, short, TransactionID);
HANDLE_READ(ReadByte, Byte, Mode);
cItem Item;
ReadItem(Item);
// Convert Button, Mode, SlotNum and HeldItem into eClickAction:
eClickAction Action;
switch ((Mode << 8) | Button)
{
case 0x0000: Action = (SlotNum != -999) ? caLeftClick : caLeftClickOutside; break;
case 0x0001: Action = (SlotNum != -999) ? 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 0x0300: Action = caMiddleClick; break;
case 0x0400: Action = (SlotNum == -999) ? caLeftClickOutsideHoldNothing : caDropKey; break;
case 0x0401: Action = (SlotNum == -999) ? caRightClickOutsideHoldNothing : caCtrlDropKey; break;
case 0x0500: Action = (SlotNum == -999) ? caLeftPaintBegin : caUnknown; break;
case 0x0501: Action = (SlotNum != -999) ? caLeftPaintProgress : caUnknown; break;
case 0x0502: Action = (SlotNum == -999) ? caLeftPaintEnd : caUnknown; break;
case 0x0504: Action = (SlotNum == -999) ? caRightPaintBegin : caUnknown; break;
case 0x0505: Action = (SlotNum != -999) ? caRightPaintProgress : caUnknown; break;
case 0x0506: Action = (SlotNum == -999) ? caRightPaintEnd : caUnknown; break;
case 0x0600: Action = caDblClick; break;
}
m_Client->HandleWindowClick(WindowID, SlotNum, Action, Item);
}
void cProtocol172::HandlePacketWindowClose(UInt32 a_RemainingBytes)
{
HANDLE_READ(ReadChar, char, WindowID);
m_Client->HandleWindowClose(WindowID);
}
void cProtocol172::WritePacket(cByteBuffer & a_Packet)
{
cCSLock Lock(m_CSPacket);
AString Pkt;
a_Packet.ReadAll(Pkt);
WriteVarInt(Pkt.size());
SendData(Pkt.data(), Pkt.size());
Flush();
}
void cProtocol172::SendData(const char * a_Data, int a_Size)
{
if (m_IsEncrypted)
{
byte Encrypted[8192]; // Larger buffer, we may be sending lots of data (chunks)
while (a_Size > 0)
{
int NumBytes = (a_Size > sizeof(Encrypted)) ? sizeof(Encrypted) : a_Size;
m_Encryptor.ProcessData(Encrypted, (byte *)a_Data, NumBytes);
m_Client->SendData((const char *)Encrypted, NumBytes);
a_Size -= NumBytes;
a_Data += NumBytes;
}
}
else
{
m_Client->SendData(a_Data, a_Size);
}
}
bool cProtocol172::ReadItem(cItem & a_Item)
{
HANDLE_PACKET_READ(ReadBEShort, short, 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(ReadChar, char, ItemCount);
HANDLE_PACKET_READ(ReadBEShort, short, ItemDamage);
a_Item.m_ItemCount = ItemCount;
a_Item.m_ItemDamage = ItemDamage;
if (ItemCount <= 0)
{
a_Item.Empty();
}
HANDLE_PACKET_READ(ReadBEShort, short, MetadataLength);
if (MetadataLength <= 0)
{
return true;
}
// Read the metadata
AString Metadata;
if (!m_ReceivedData.ReadString(Metadata, MetadataLength))
{
return false;
}
ParseItemMetadata(a_Item, Metadata);
return true;
}
void cProtocol172::ParseItemMetadata(cItem & a_Item, const AString & a_Metadata)
{
// Uncompress the GZIPped data:
AString Uncompressed;
if (UncompressStringGZIP(a_Metadata.data(), a_Metadata.size(), Uncompressed) != Z_OK)
{
AString HexDump;
CreateHexDump(HexDump, a_Metadata.data(), a_Metadata.size(), 16);
LOGWARNING("Cannot unGZIP item metadata (%u bytes):\n%s", a_Metadata.size(), HexDump.c_str());
return;
}
// Parse into NBT:
cParsedNBT NBT(Uncompressed.data(), Uncompressed.size());
if (!NBT.IsValid())
{
AString HexDump;
CreateHexDump(HexDump, Uncompressed.data(), Uncompressed.size(), 16);
LOGWARNING("Cannot parse NBT item metadata: (%u bytes)\n%s", Uncompressed.size(), HexDump.c_str());
return;
}
// Load enchantments from the NBT:
for (int tag = NBT.GetFirstChild(NBT.GetRoot()); tag >= 0; tag = NBT.GetNextSibling(tag))
{
if (
(NBT.GetType(tag) == TAG_List) &&
(
(NBT.GetName(tag) == "ench") ||
(NBT.GetName(tag) == "StoredEnchantments")
)
)
{
a_Item.m_Enchantments.ParseFromNBT(NBT, tag);
}
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// cProtocol172::cPacketizer:
cProtocol172::cPacketizer::~cPacketizer()
{
AString DataToSend;
// Send the packet length
UInt32 PacketLen = m_Out.GetUsedSpace();
m_Protocol.m_OutPacketLenBuffer.WriteVarInt(PacketLen);
m_Protocol.m_OutPacketLenBuffer.ReadAll(DataToSend);
m_Protocol.SendData(DataToSend.data(), DataToSend.size());
m_Protocol.m_OutPacketLenBuffer.CommitRead();
// Send the packet data:
m_Out.ReadAll(DataToSend);
m_Protocol.SendData(DataToSend.data(), DataToSend.size());
m_Out.CommitRead();
}
void cProtocol172::cPacketizer::WriteItem(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())
{
WriteShort(-1);
return;
}
WriteShort(ItemType);
WriteByte (a_Item.m_ItemCount);
WriteShort(a_Item.m_ItemDamage);
if (a_Item.m_Enchantments.IsEmpty())
{
WriteShort(-1);
return;
}
// Send the enchantments:
cFastNBTWriter Writer;
const char * TagName = (a_Item.m_ItemType == E_ITEM_BOOK) ? "StoredEnchantments" : "ench";
a_Item.m_Enchantments.WriteToNBTCompound(Writer, TagName);
Writer.Finish();
AString Compressed;
CompressStringGZIP(Writer.GetResult().data(), Writer.GetResult().size(), Compressed);
WriteShort(Compressed.size());
WriteBuf(Compressed.data(), Compressed.size());
}
void cProtocol172::cPacketizer::WriteByteAngle(double a_Angle)
{
WriteByte((char)(255 * a_Angle / 360));
}
void cProtocol172::cPacketizer::WriteFPInt(double a_Value)
{
int Value = (int)(a_Value * 32);
WriteInt(Value);
}
void cProtocol172::cPacketizer::WriteEntityMetadata(const cEntity & a_Entity)
{
// Common metadata:
Byte Flags = 0;
if (a_Entity.IsOnFire())
{
Flags |= 0x01;
}
if (a_Entity.IsCrouched())
{
Flags |= 0x02;
}
if (a_Entity.IsSprinting())
{
Flags |= 0x08;
}
if (a_Entity.IsRclking())
{
Flags |= 0x10;
}
if (a_Entity.IsInvisible())
{
Flags |= 0x20;
}
WriteByte(0); // Byte(0) + index 0
WriteByte(Flags);
switch (a_Entity.GetEntityType())
{
case cEntity::etPlayer: break; // TODO?
case cEntity::etPickup:
{
WriteByte((5 << 5) | 10); // Slot(5) + index 10
WriteItem(((const cPickup &)a_Entity).GetItem());
break;
}
case cEntity::etMonster:
{
WriteMobMetadata((const cMonster &)a_Entity);
break;
}
// TODO: Other types
}
}
void cProtocol172::cPacketizer::WriteMobMetadata(const cMonster & a_Mob)
{
// TODO
}
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