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Diffstat (limited to 'src/Protocol/Protocol17x.cpp')
| -rw-r--r-- | src/Protocol/Protocol17x.cpp | 1944 |
1 files changed, 1944 insertions, 0 deletions
diff --git a/src/Protocol/Protocol17x.cpp b/src/Protocol/Protocol17x.cpp new file mode 100644 index 000000000..746e1c127 --- /dev/null +++ b/src/Protocol/Protocol17x.cpp @@ -0,0 +1,1944 @@ + +// 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/ExpOrb.h" +#include "../Entities/Minecart.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(Printf("{\"text\":\"%s\"}", EscapeString(a_Reason).c_str())); +} + + + + + +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_IsOnline ? a_Player.GetClientHandle()->GetPing() : 0); +} + + + + + +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.WriteVarInt(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::SendExperience (void) +{ + cPacketizer Pkt(*this, 0x1F); //Experience Packet + Pkt.WriteFloat(m_Client->GetPlayer()->GetXpPercentage()); + Pkt.WriteShort(m_Client->GetPlayer()->GetXpLevel()); + Pkt.WriteShort(m_Client->GetPlayer()->GetCurrentXp()); +} + + + + + +void cProtocol172::SendExperienceOrb(const cExpOrb & a_ExpOrb) +{ + cPacketizer Pkt(*this, 0x11); + Pkt.WriteVarInt(a_ExpOrb.GetUniqueID()); + Pkt.WriteInt((int) a_ExpOrb.GetPosX()); + Pkt.WriteInt((int) a_ExpOrb.GetPosY()); + Pkt.WriteInt((int) a_ExpOrb.GetPosZ()); + Pkt.WriteShort(a_ExpOrb.GetReward()); +} + + + + + +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); + Pkt.WriteByte(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.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) ? 1 : 2); // End rain / begin rain + Pkt.WriteFloat(0); // Unused for weather + } + + // TODO: Fade effect, somehow +} + + + + + +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; + } + } // 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); + m_Client->HandleUseEntity(EntityID, (MouseButton == 1)); +} + + + + + +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::etMinecart: + { + WriteByte(0x51); + + // The following expression makes Minecarts shake more with less health or higher damage taken + // It gets half the maximum health, and takes it away from the current health minus the half health: + /* Health: 5 | 3 - (5 - 3) = 1 (shake power) + Health: 3 | 3 - (3 - 3) = 3 + Health: 1 | 3 - (1 - 3) = 5 + */ + WriteInt((((a_Entity.GetMaxHealth() / 2) - (a_Entity.GetHealth() - (a_Entity.GetMaxHealth() / 2))) * ((const cMinecart &)a_Entity).LastDamage()) * 4); + WriteByte(0x52); + WriteInt(1); // Shaking direction, doesn't seem to affect anything + WriteByte(0x73); + WriteFloat((float)(((const cMinecart &)a_Entity).LastDamage() + 10)); // Damage taken / shake effect multiplyer + + if (((cMinecart &)a_Entity).GetPayload() == cMinecart::mpFurnace) + { + WriteByte(0x10); + WriteByte(((const cMinecartWithFurnace &)a_Entity).IsFueled() ? 1 : 0); + } + break; + } + case cEntity::etProjectile: + { + if (((cProjectileEntity &)a_Entity).GetProjectileKind() == cProjectileEntity::pkArrow) + { + WriteByte(0x10); + WriteByte(((const cArrowEntity &)a_Entity).IsCritical() ? 1 : 0); + } + break; + } + case cEntity::etMonster: + { + WriteMobMetadata((const cMonster &)a_Entity); + break; + } + } +} + + + + + +void cProtocol172::cPacketizer::WriteMobMetadata(const cMonster & a_Mob) +{ + switch (a_Mob.GetMobType()) + { + case cMonster::mtCreeper: + { + WriteByte(0x10); + WriteByte(((const cCreeper &)a_Mob).IsBlowing() ? 1 : -1); + WriteByte(0x11); + WriteByte(((const cCreeper &)a_Mob).IsCharged() ? 1 : 0); + break; + } + + case cMonster::mtBat: + { + WriteByte(0x10); + WriteByte(((const cBat &)a_Mob).IsHanging() ? 1 : 0); + break; + } + + case cMonster::mtPig: + { + WriteByte(0x10); + WriteByte(((const cPig &)a_Mob).IsSaddled() ? 1 : 0); + break; + } + + case cMonster::mtVillager: + { + WriteByte(0x50); + WriteInt(((const cVillager &)a_Mob).GetVilType()); + break; + } + + case cMonster::mtZombie: + { + WriteByte(0x0c); + WriteByte(((const cZombie &)a_Mob).IsBaby() ? 1 : 0); + WriteByte(0x0d); + WriteByte(((const cZombie &)a_Mob).IsVillagerZombie() ? 1 : 0); + WriteByte(0x0e); + WriteByte(((const cZombie &)a_Mob).IsConverting() ? 1 : 0); + break; + } + + case cMonster::mtGhast: + { + WriteByte(0x10); + WriteByte(((const cGhast &)a_Mob).IsCharging()); + break; + } + + case cMonster::mtWolf: + { + const cWolf & Wolf = (const cWolf &)a_Mob; + Byte WolfStatus = 0; + if (Wolf.IsSitting()) + { + WolfStatus |= 0x1; + } + if (Wolf.IsAngry()) + { + WolfStatus |= 0x2; + } + if (Wolf.IsTame()) + { + WolfStatus |= 0x4; + } + WriteByte(0x10); + WriteByte(WolfStatus); + + WriteByte(0x72); + WriteFloat((float)(a_Mob.GetHealth())); + WriteByte(0x13); + WriteByte(Wolf.IsBegging() ? 1 : 0); + WriteByte(0x14); + WriteByte(Wolf.GetCollarColor()); + break; + } + + case cMonster::mtSheep: + { + WriteByte(0x10); + Byte SheepMetadata = 0; + SheepMetadata = ((const cSheep &)a_Mob).GetFurColor(); + if (((const cSheep &)a_Mob).IsSheared()) + { + SheepMetadata |= 0x10; + } + WriteByte(SheepMetadata); + break; + } + + case cMonster::mtEnderman: + { + WriteByte(0x10); + WriteByte((Byte)(((const cEnderman &)a_Mob).GetCarriedBlock())); + WriteByte(0x11); + WriteByte((Byte)(((const cEnderman &)a_Mob).GetCarriedMeta())); + WriteByte(0x12); + WriteByte(((const cEnderman &)a_Mob).IsScreaming() ? 1 : 0); + break; + } + + case cMonster::mtSkeleton: + { + WriteByte(0x0d); + WriteByte(((const cSkeleton &)a_Mob).IsWither() ? 1 : 0); + break; + } + + case cMonster::mtWitch: + { + WriteByte(0x15); + WriteByte(((const cWitch &)a_Mob).IsAngry() ? 1 : 0); + break; + } + + case cMonster::mtSlime: + { + WriteByte(0x10); + WriteByte(((const cSlime &)a_Mob).GetSize()); + break; + } + + case cMonster::mtMagmaCube: + { + WriteByte(0x10); + WriteByte(((const cMagmaCube &)a_Mob).GetSize()); + break; + } + + case cMonster::mtHorse: + { + const cHorse & Horse = (const cHorse &)a_Mob; + int Flags = 0; + if (Horse.IsTame()) + { + Flags |= 0x02; + } + if (Horse.IsSaddled()) + { + Flags |= 0x04; + } + if (Horse.IsChested()) + { + Flags |= 0x08; + } + if (Horse.IsBaby()) + { + Flags |= 0x10; + } + if (Horse.IsEating()) + { + Flags |= 0x20; + } + if (Horse.IsRearing()) + { + Flags |= 0x40; + } + if (Horse.IsMthOpen()) + { + Flags |= 0x80; + } + WriteByte(0x50); // Int at index 16 + WriteInt(Flags); + WriteByte(0x13); // Byte at index 19 + WriteByte(Horse.GetHorseType()); + WriteByte(0x54); // Int at index 20 + int Appearance = 0; + Appearance = Horse.GetHorseColor(); + Appearance |= Horse.GetHorseStyle() << 8; + WriteInt(Appearance); + WriteByte(0x56); // Int at index 22 + WriteInt(Horse.GetHorseArmour()); + break; + } + } // switch (a_Mob.GetType()) +} + + + + + +void cProtocol172::cPacketizer::WriteEntityProperties(const cEntity & a_Entity) +{ + if (!a_Entity.IsMob()) + { + // No properties for anything else than mobs + WriteInt(0); + return; + } + const cMonster & Mob = (const cMonster &)a_Entity; + + // TODO: Send properties and modifiers based on the mob type + + WriteInt(0); // NumProperties +} + + + + |