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cuberite-2a/source/Protocol/Protocol125.cpp
madmaxoft f08d78c887 Fixed rounding errors in cProtocol125::SendExplosion(). 
This should fix #129.
2013-09-19 22:03:02 +02:00

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// Protocol125.cpp
// Implements the cProtocol125 class representing the release 1.2.5 protocol (#29)
/*
Documentation:
- protocol: http://wiki.vg/wiki/index.php?title=Protocol&oldid=2513
- session handling: http://wiki.vg/wiki/index.php?title=Session&oldid=2262
- slot format: http://wiki.vg/wiki/index.php?title=Slot_Data&oldid=2152
*/
#include "Globals.h"
#include "Protocol125.h"
#include "../ClientHandle.h"
#include "../World.h"
#include "ChunkDataSerializer.h"
#include "../Entities/Entity.h"
#include "../Mobs/Monster.h"
#include "../Entities/Pickup.h"
#include "../Entities/Player.h"
#include "../ChatColor.h"
#include "../UI/Window.h"
#include "../Root.h"
#include "../Server.h"
#include "../Entities/FallingBlock.h"
enum
{
PACKET_KEEP_ALIVE = 0x00,
PACKET_LOGIN = 0x01,
PACKET_HANDSHAKE = 0x02,
PACKET_CHAT = 0x03,
PACKET_UPDATE_TIME = 0x04,
PACKET_ENTITY_EQUIPMENT = 0x05,
PACKET_USE_ENTITY = 0x07,
PACKET_UPDATE_HEALTH = 0x08,
PACKET_RESPAWN = 0x09,
PACKET_PLAYER_ON_GROUND = 0x0a,
PACKET_PLAYER_POS = 0x0b,
PACKET_PLAYER_LOOK = 0x0c,
PACKET_PLAYER_MOVE_LOOK = 0x0d,
PACKET_BLOCK_DIG = 0x0e,
PACKET_BLOCK_PLACE = 0x0f,
PACKET_SLOT_SELECTED = 0x10,
PACKET_USE_BED = 0x11,
PACKET_ANIMATION = 0x12,
PACKET_PACKET_ENTITY_ACTION = 0x13,
PACKET_PLAYER_SPAWN = 0x14,
PACKET_PICKUP_SPAWN = 0x15,
PACKET_COLLECT_PICKUP = 0x16,
PACKET_SPAWN_OBJECT = 0x17,
PACKET_SPAWN_MOB = 0x18,
PACKET_ENTITY_VELOCITY = 0x1c,
PACKET_DESTROY_ENTITY = 0x1d,
PACKET_ENTITY = 0x1e,
PACKET_ENT_REL_MOVE = 0x1f,
PACKET_ENT_LOOK = 0x20,
PACKET_ENT_REL_MOVE_LOOK = 0x21,
PACKET_ENT_TELEPORT = 0x22,
PACKET_ENT_HEAD_LOOK = 0x23,
PACKET_ENT_STATUS = 0x26,
PACKET_ATTACH_ENTITY = 0x27,
PACKET_METADATA = 0x28,
PACKET_PRE_CHUNK = 0x32,
PACKET_MAP_CHUNK = 0x33,
PACKET_MULTI_BLOCK = 0x34,
PACKET_BLOCK_CHANGE = 0x35,
PACKET_BLOCK_ACTION = 0x36,
PACKET_EXPLOSION = 0x3C,
PACKET_SOUND_EFFECT = 0x3e,
PACKET_SOUND_PARTICLE_EFFECT = 0x3d,
PACKET_CHANGE_GAME_STATE = 0x46,
PACKET_THUNDERBOLT = 0x47,
PACKET_WINDOW_OPEN = 0x64,
PACKET_WINDOW_CLOSE = 0x65,
PACKET_WINDOW_CLICK = 0x66,
PACKET_INVENTORY_SLOT = 0x67,
PACKET_INVENTORY_WHOLE = 0x68,
PACKET_WINDOW_PROPERTY = 0x69,
PACKET_CREATIVE_INVENTORY_ACTION = 0x6B,
PACKET_UPDATE_SIGN = 0x82,
PACKET_PLAYER_LIST_ITEM = 0xC9,
PACKET_PLAYER_ABILITIES = 0xca,
PACKET_PLUGIN_MESSAGE = 0xfa,
PACKET_PING = 0xfe,
PACKET_DISCONNECT = 0xff
} ;
#define HANDLE_PACKET_READ(Proc, Type, Var) \
Type Var; \
{ \
if (!m_ReceivedData.Proc(Var)) \
{ \
m_ReceivedData.CheckValid(); \
return PARSE_INCOMPLETE; \
} \
m_ReceivedData.CheckValid(); \
}
typedef unsigned char Byte;
cProtocol125::cProtocol125(cClientHandle * a_Client) :
super(a_Client),
m_ReceivedData(32 KiB)
{
}
void cProtocol125::SendAttachEntity(const cEntity & a_Entity, const cEntity * a_Vehicle)
{
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_ATTACH_ENTITY);
WriteInt(a_Entity.GetUniqueID());
WriteInt((a_Vehicle == NULL) ? -1 : a_Vehicle->GetUniqueID());
Flush();
}
void cProtocol125::SendBlockAction(int a_BlockX, int a_BlockY, int a_BlockZ, char a_Byte1, char a_Byte2, BLOCKTYPE a_BlockType)
{
UNUSED(a_BlockType);
cCSLock Lock(m_CSPacket);
WriteByte (PACKET_BLOCK_ACTION);
WriteInt (a_BlockX);
WriteShort((short)a_BlockY);
WriteInt (a_BlockZ);
WriteByte (a_Byte1);
WriteByte (a_Byte2);
Flush();
}
void cProtocol125::SendBlockBreakAnim(int a_entityID, int a_BlockX, int a_BlockY, int a_BlockZ, char stage)
{
// Not supported in this protocol version
}
void cProtocol125::SendBlockChange(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta)
{
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_BLOCK_CHANGE);
WriteInt (a_BlockX);
WriteByte((unsigned char)a_BlockY);
WriteInt (a_BlockZ);
WriteByte(a_BlockType);
WriteByte(a_BlockMeta);
Flush();
}
void cProtocol125::SendBlockChanges(int a_ChunkX, int a_ChunkZ, const sSetBlockVector & a_Changes)
{
cCSLock Lock(m_CSPacket);
if (a_Changes.size() == 1)
{
// Special packet for single-block changes
const sSetBlock & blk = a_Changes.front();
SendBlockChange(a_ChunkX * cChunkDef::Width + blk.x, blk.y, a_ChunkZ * cChunkDef::Width + blk.z, blk.BlockType, blk.BlockMeta);
return;
}
WriteByte (PACKET_MULTI_BLOCK);
WriteInt (a_ChunkX);
WriteInt (a_ChunkZ);
WriteShort((unsigned short)a_Changes.size());
WriteUInt (sizeof(int) * a_Changes.size());
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);
WriteUInt(Coords << 16 | Blocks);
}
Flush();
}
void cProtocol125::SendChat(const AString & a_Message)
{
cCSLock Lock(m_CSPacket);
WriteByte (PACKET_CHAT);
WriteString(a_Message);
Flush();
}
void cProtocol125::SendChunkData(int a_ChunkX, int a_ChunkZ, cChunkDataSerializer & a_Serializer)
{
cCSLock Lock(m_CSPacket);
// Send the pre-chunk:
SendPreChunk(a_ChunkX, a_ChunkZ, true);
// Send the chunk data:
AString Serialized = a_Serializer.Serialize(cChunkDataSerializer::RELEASE_1_2_5);
WriteByte(PACKET_MAP_CHUNK);
WriteInt (a_ChunkX);
WriteInt (a_ChunkZ);
SendData(Serialized.data(), Serialized.size());
Flush();
}
void cProtocol125::SendCollectPickup(const cPickup & a_Pickup, const cPlayer & a_Player)
{
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_COLLECT_PICKUP);
WriteInt (a_Pickup.GetUniqueID());
WriteInt (a_Player.GetUniqueID());
Flush();
}
void cProtocol125::SendDestroyEntity(const cEntity & a_Entity)
{
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_DESTROY_ENTITY);
WriteInt (a_Entity.GetUniqueID());
Flush();
}
void cProtocol125::SendDisconnect(const AString & a_Reason)
{
cCSLock Lock(m_CSPacket);
WriteByte ((unsigned char)PACKET_DISCONNECT);
WriteString(a_Reason);
Flush();
}
void cProtocol125::SendEditSign(int a_BlockX, int a_BlockY, int a_BlockZ)
{
// This protocol version doesn't support this packet, sign editor is invoked by the client automatically
UNUSED(a_BlockX);
UNUSED(a_BlockY);
UNUSED(a_BlockZ);
}
void cProtocol125::SendEntityEquipment(const cEntity & a_Entity, short a_SlotNum, const cItem & a_Item)
{
cCSLock Lock(m_CSPacket);
WriteByte (PACKET_ENTITY_EQUIPMENT);
WriteInt (a_Entity.GetUniqueID());
WriteShort(a_SlotNum);
WriteShort(a_Item.m_ItemType);
WriteShort(a_Item.m_ItemDamage);
Flush();
}
void cProtocol125::SendEntityHeadLook(const cEntity & a_Entity)
{
ASSERT(a_Entity.GetUniqueID() != m_Client->GetPlayer()->GetUniqueID()); // Must not send for self
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_ENT_HEAD_LOOK);
WriteInt (a_Entity.GetUniqueID());
WriteByte((char)((a_Entity.GetHeadYaw() / 360.f) * 256));
Flush();
}
void cProtocol125::SendEntityLook(const cEntity & a_Entity)
{
ASSERT(a_Entity.GetUniqueID() != m_Client->GetPlayer()->GetUniqueID()); // Must not send for self
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_ENT_LOOK);
WriteInt (a_Entity.GetUniqueID());
WriteByte((char)((a_Entity.GetRotation() / 360.f) * 256));
WriteByte((char)((a_Entity.GetPitch() / 360.f) * 256));
Flush();
}
void cProtocol125::SendEntityMetadata(const cEntity & a_Entity)
{
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_METADATA);
WriteInt (a_Entity.GetUniqueID());
AString MetaData = GetEntityMetaData(a_Entity);
SendData(MetaData.data(), MetaData.size());
Flush();
}
void cProtocol125::SendEntityProperties(const cEntity & a_Entity)
{
// Not supported in this protocol version
}
void cProtocol125::SendEntityRelMove(const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ)
{
ASSERT(a_Entity.GetUniqueID() != m_Client->GetPlayer()->GetUniqueID()); // Must not send for self
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_ENT_REL_MOVE);
WriteInt (a_Entity.GetUniqueID());
WriteByte(a_RelX);
WriteByte(a_RelY);
WriteByte(a_RelZ);
Flush();
}
void cProtocol125::SendEntityRelMoveLook(const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ)
{
ASSERT(a_Entity.GetUniqueID() != m_Client->GetPlayer()->GetUniqueID()); // Must not send for self
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_ENT_REL_MOVE_LOOK);
WriteInt (a_Entity.GetUniqueID());
WriteByte(a_RelX);
WriteByte(a_RelY);
WriteByte(a_RelZ);
WriteByte((char)((a_Entity.GetRotation() / 360.f) * 256));
WriteByte((char)((a_Entity.GetPitch() / 360.f) * 256));
Flush();
}
void cProtocol125::SendEntityStatus(const cEntity & a_Entity, char a_Status)
{
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_ENT_STATUS);
WriteInt (a_Entity.GetUniqueID());
WriteByte(a_Status);
Flush();
}
void cProtocol125::SendEntityVelocity(const cEntity & a_Entity)
{
ASSERT(a_Entity.GetUniqueID() != m_Client->GetPlayer()->GetUniqueID()); // Must not send for self
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_ENTITY_VELOCITY);
WriteInt (a_Entity.GetUniqueID());
WriteShort((short) (a_Entity.GetSpeedX() * 400)); //400 = 8000 / 20
WriteShort((short) (a_Entity.GetSpeedY() * 400));
WriteShort((short) (a_Entity.GetSpeedZ() * 400));
Flush();
}
void cProtocol125::SendExplosion(double a_BlockX, double a_BlockY, double a_BlockZ, float a_Radius, const cVector3iArray & a_BlocksAffected, const Vector3d & a_PlayerMotion)
{
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_EXPLOSION);
WriteDouble (a_BlockX);
WriteDouble (a_BlockY);
WriteDouble (a_BlockZ);
WriteFloat (a_Radius);
WriteInt (a_BlocksAffected.size());
int BlockX = (int)a_BlockX;
int BlockY = (int)a_BlockY;
int BlockZ = (int)a_BlockZ;
for (cVector3iArray::const_iterator itr = a_BlocksAffected.begin(); itr != a_BlocksAffected.end(); ++itr)
{
WriteByte((Byte)(itr->x - BlockX));
WriteByte((Byte)(itr->y - BlockY));
WriteByte((Byte)(itr->z - BlockZ));
}
WriteFloat((float)a_PlayerMotion.x);
WriteFloat((float)a_PlayerMotion.y);
WriteFloat((float)a_PlayerMotion.z);
Flush();
}
void cProtocol125::SendGameMode(eGameMode a_GameMode)
{
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_CHANGE_GAME_STATE);
WriteByte(3);
WriteByte((char)a_GameMode);
Flush();
}
void cProtocol125::SendHandshake(const AString & a_ConnectionHash)
{
cCSLock Lock(m_CSPacket);
WriteByte (PACKET_HANDSHAKE);
WriteString(a_ConnectionHash);
Flush();
}
void cProtocol125::SendHealth(void)
{
cCSLock Lock(m_CSPacket);
WriteByte (PACKET_UPDATE_HEALTH);
WriteShort((short)m_Client->GetPlayer()->GetHealth());
WriteShort(m_Client->GetPlayer()->GetFoodLevel());
WriteFloat((float)m_Client->GetPlayer()->GetFoodSaturationLevel());
Flush();
}
void cProtocol125::SendInventorySlot(char a_WindowID, short a_SlotNum, const cItem & a_Item)
{
cCSLock Lock(m_CSPacket);
WriteByte (PACKET_INVENTORY_SLOT);
WriteByte (a_WindowID);
WriteShort(a_SlotNum);
WriteItem (a_Item);
Flush();
}
void cProtocol125::SendKeepAlive(int a_PingID)
{
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_KEEP_ALIVE);
WriteInt (a_PingID);
Flush();
}
void cProtocol125::SendLogin(const cPlayer & a_Player, const cWorld & a_World)
{
UNUSED(a_World);
cCSLock Lock(m_CSPacket);
WriteByte (PACKET_LOGIN);
WriteInt (a_Player.GetUniqueID()); // EntityID of the player
WriteString(""); // Username, not used
WriteString("default"); // Level type
WriteInt ((int)a_Player.GetGameMode());
WriteInt ((int)(a_World.GetDimension()));
WriteByte (2); // TODO: Difficulty
WriteByte (0); // Unused
WriteByte (60); // Client list width or something
Flush();
}
void cProtocol125::SendPickupSpawn(const cPickup & a_Pickup)
{
cCSLock Lock(m_CSPacket);
WriteByte (PACKET_PICKUP_SPAWN);
WriteInt (a_Pickup.GetUniqueID());
WriteShort (a_Pickup.GetItem().m_ItemType);
WriteByte (a_Pickup.GetItem().m_ItemCount);
WriteShort (a_Pickup.GetItem().m_ItemDamage);
WriteVectorI((Vector3i)(a_Pickup.GetPosition() * 32));
WriteByte ((char)(a_Pickup.GetSpeed().x * 8));
WriteByte ((char)(a_Pickup.GetSpeed().y * 8));
WriteByte ((char)(a_Pickup.GetSpeed().z * 8));
Flush();
}
void cProtocol125::SendPlayerAnimation(const cPlayer & a_Player, char a_Animation)
{
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_ANIMATION);
WriteInt (a_Player.GetUniqueID());
WriteByte(a_Animation);
Flush();
}
void cProtocol125::SendPlayerListItem(const cPlayer & a_Player, bool a_IsOnline)
{
cCSLock Lock(m_CSPacket);
AString PlayerName(a_Player.GetColor());
PlayerName.append(a_Player.GetName());
if (PlayerName.length() > 14)
{
PlayerName.erase(14);
}
PlayerName += cChatColor::White;
WriteByte ((unsigned char)PACKET_PLAYER_LIST_ITEM);
WriteString(PlayerName);
WriteBool (a_IsOnline);
WriteShort (a_IsOnline ? a_Player.GetClientHandle()->GetPing() : 0);
Flush();
}
void cProtocol125::SendPlayerMaxSpeed(void)
{
// Not supported by this protocol version
}
void cProtocol125::SendPlayerMoveLook(void)
{
cCSLock Lock(m_CSPacket);
/*
LOGD("Sending PlayerMoveLook: {%0.2f, %0.2f, %0.2f}, stance %0.2f, OnGround: %d",
m_Player->GetPosX(), m_Player->GetPosY(), m_Player->GetPosZ(), m_Player->GetStance(), m_Player->IsOnGround() ? 1 : 0
);
*/
WriteByte (PACKET_PLAYER_MOVE_LOOK);
cPlayer * Player = m_Client->GetPlayer();
WriteDouble(Player->GetPosX());
WriteDouble(Player->GetStance() + 0.03); // Add a small amount so that the player doesn't start inside a block
WriteDouble(Player->GetPosY() + 0.03); // Add a small amount so that the player doesn't start inside a block
WriteDouble(Player->GetPosZ());
WriteFloat ((float)(Player->GetRotation()));
WriteFloat ((float)(Player->GetPitch()));
WriteBool (Player->IsOnGround());
Flush();
}
void cProtocol125::SendPlayerPosition(void)
{
cCSLock Lock(m_CSPacket);
LOGD("Ignore send PlayerPos"); // PlayerPos is a C->S packet only now
}
void cProtocol125::SendPlayerSpawn(const cPlayer & a_Player)
{
const cItem & HeldItem = a_Player.GetEquippedItem();
cCSLock Lock(m_CSPacket);
WriteByte (PACKET_PLAYER_SPAWN);
WriteInt (a_Player.GetUniqueID());
WriteString(a_Player.GetName());
WriteInt ((int)(a_Player.GetPosX() * 32));
WriteInt ((int)(a_Player.GetPosY() * 32));
WriteInt ((int)(a_Player.GetPosZ() * 32));
WriteByte ((char)((a_Player.GetRot().x / 360.f) * 256));
WriteByte ((char)((a_Player.GetRot().y / 360.f) * 256));
WriteShort (HeldItem.IsEmpty() ? 0 : HeldItem.m_ItemType);
Flush();
}
void cProtocol125::SendRespawn(void)
{
cCSLock Lock(m_CSPacket);
WriteByte (PACKET_RESPAWN);
WriteInt ((int)(m_Client->GetPlayer()->GetWorld()->GetDimension()));
WriteByte (2); // TODO: Difficulty; 2 = Normal
WriteByte ((char)m_Client->GetPlayer()->GetGameMode());
WriteShort (256); // Current world height
WriteString("default");
}
void cProtocol125::SendSoundEffect(const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch)
{
// Not needed in this protocol version
}
void cProtocol125::SendSoundParticleEffect(int a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data)
{
// Not implemented in this protocol version
}
void cProtocol125::SendSpawnFallingBlock(const cFallingBlock & a_FallingBlock)
{
// This protocol version implements falling blocks using the spawn object / vehicle packet:
SendSpawnObject(a_FallingBlock, 70, a_FallingBlock.GetBlockType(), 0, 0);
}
void cProtocol125::SendSpawnMob(const cMonster & a_Mob)
{
cCSLock Lock(m_CSPacket);
WriteByte (PACKET_SPAWN_MOB);
WriteInt (a_Mob.GetUniqueID());
WriteByte (a_Mob.GetMobType());
WriteVectorI((Vector3i)(a_Mob.GetPosition() * 32));
WriteByte (0);
WriteByte (0);
WriteByte (0);
AString MetaData = GetEntityMetaData(a_Mob);
SendData (MetaData.data(), MetaData.size());
Flush();
}
void cProtocol125::SendSpawnObject(const cEntity & a_Entity, char a_ObjectType, int a_ObjectData, Byte a_Yaw, Byte a_Pitch)
{
UNUSED(a_Yaw);
UNUSED(a_Pitch);
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_SPAWN_OBJECT);
WriteInt (a_Entity.GetUniqueID());
WriteByte(a_ObjectType);
WriteInt ((int)(a_Entity.GetPosX() * 32));
WriteInt ((int)(a_Entity.GetPosY() * 32));
WriteInt ((int)(a_Entity.GetPosZ() * 32));
WriteByte(a_Pitch);
WriteByte(a_Yaw);
WriteInt (a_ObjectData);
if (a_ObjectData != 0)
{
WriteShort((short)(a_Entity.GetSpeedX() * 400));
WriteShort((short)(a_Entity.GetSpeedY() * 400));
WriteShort((short)(a_Entity.GetSpeedZ() * 400));
}
Flush();
}
void cProtocol125::SendSpawnVehicle(const cEntity & a_Vehicle, char a_VehicleType, char a_VehicleSubType)
{
cCSLock Lock(m_CSPacket);
WriteByte (PACKET_SPAWN_OBJECT);
WriteInt (a_Vehicle.GetUniqueID());
WriteByte (a_VehicleType);
WriteInt ((int)(a_Vehicle.GetPosX() * 32));
WriteInt ((int)(a_Vehicle.GetPosY() * 32));
WriteInt ((int)(a_Vehicle.GetPosZ() * 32));
WriteByte ((Byte)((a_Vehicle.GetPitch() / 360.f) * 256));
WriteByte ((Byte)((a_Vehicle.GetRotation() / 360.f) * 256));
WriteInt (a_VehicleSubType);
if (a_VehicleSubType != 0)
{
WriteShort((short)(a_Vehicle.GetSpeedX() * 400));
WriteShort((short)(a_Vehicle.GetSpeedY() * 400));
WriteShort((short)(a_Vehicle.GetSpeedZ() * 400));
}
Flush();
}
void cProtocol125::SendTabCompletionResults(const AStringVector & a_Results)
{
// This protocol version doesn't support tab completion
UNUSED(a_Results);
}
void cProtocol125::SendTeleportEntity(const cEntity & a_Entity)
{
cCSLock Lock(m_CSPacket);
WriteByte (PACKET_ENT_TELEPORT);
WriteInt (a_Entity.GetUniqueID());
WriteInt ((int)(floor(a_Entity.GetPosX() * 32)));
WriteInt ((int)(floor(a_Entity.GetPosY() * 32)));
WriteInt ((int)(floor(a_Entity.GetPosZ() * 32)));
WriteByte ((char)((a_Entity.GetRotation() / 360.f) * 256));
WriteByte ((char)((a_Entity.GetPitch() / 360.f) * 256));
Flush();
}
void cProtocol125::SendThunderbolt(int a_BlockX, int a_BlockY, int a_BlockZ)
{
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_THUNDERBOLT);
WriteInt (0x7fffffff); // Entity ID of the thunderbolt; we use a constant one
WriteBool(true); // Unknown bool
WriteInt (a_BlockX * 32);
WriteInt (a_BlockY * 32);
WriteInt (a_BlockZ * 32);
Flush();
}
void cProtocol125::SendTimeUpdate(Int64 a_WorldAge, Int64 a_TimeOfDay)
{
cCSLock Lock(m_CSPacket);
WriteByte (PACKET_UPDATE_TIME);
// Use a_WorldAge for daycount, and a_TimeOfDay for the proper time of day:
WriteInt64((24000 * (a_WorldAge / 24000)) + (a_TimeOfDay % 24000));
Flush();
}
void cProtocol125::SendUnloadChunk(int a_ChunkX, int a_ChunkZ)
{
cCSLock Lock(m_CSPacket);
SendPreChunk(a_ChunkX, a_ChunkZ, false);
}
void cProtocol125::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
)
{
cCSLock Lock(m_CSPacket);
WriteByte ((unsigned char)PACKET_UPDATE_SIGN);
WriteInt (a_BlockX);
WriteShort ((short)a_BlockY);
WriteInt (a_BlockZ);
WriteString(a_Line1);
WriteString(a_Line2);
WriteString(a_Line3);
WriteString(a_Line4);
Flush();
}
void cProtocol125::SendUseBed(const cEntity & a_Entity, int a_BlockX, int a_BlockY, int a_BlockZ )
{
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_USE_BED);
WriteInt (a_Entity.GetUniqueID());
WriteByte(0); // Unknown byte only 0 has been observed
WriteInt (a_BlockX);
WriteByte(a_BlockY);
WriteInt (a_BlockZ);
Flush();
}
void cProtocol125::SendWeather(eWeather a_Weather)
{
cCSLock Lock(m_CSPacket);
switch( a_Weather )
{
case eWeather_Sunny:
{
WriteByte(PACKET_CHANGE_GAME_STATE);
WriteByte(2); // Stop rain
WriteByte(0); // Unused
Flush();
break;
}
case eWeather_Rain:
case eWeather_ThunderStorm:
{
WriteByte(PACKET_CHANGE_GAME_STATE);
WriteByte(1); // Begin rain
WriteByte(0); // Unused
Flush();
break;
}
}
}
void cProtocol125::SendWholeInventory(const cInventory & a_Inventory)
{
SendWholeInventory(*(a_Inventory.GetOwner().GetWindow()));
}
void cProtocol125::SendWholeInventory(const cWindow & a_Window)
{
cCSLock Lock(m_CSPacket);
cItems Slots;
a_Window.GetSlots(*(m_Client->GetPlayer()), Slots);
SendWindowSlots(a_Window.GetWindowID(), Slots.size(), &(Slots[0]));
}
void cProtocol125::SendWindowClose(const cWindow & a_Window)
{
if (a_Window.GetWindowType() == cWindow::Inventory)
{
// Do not send inventory-window-close
return;
}
cCSLock Lock(m_CSPacket);
WriteByte(PACKET_WINDOW_CLOSE);
WriteByte(a_Window.GetWindowID());
Flush();
}
void cProtocol125::SendWindowOpen(char a_WindowID, char a_WindowType, const AString & a_WindowTitle, char a_NumSlots)
{
if (a_WindowType < 0)
{
// Do not send for inventory windows
return;
}
cCSLock Lock(m_CSPacket);
WriteByte (PACKET_WINDOW_OPEN);
WriteByte (a_WindowID);
WriteByte (a_WindowType);
WriteString(a_WindowTitle);
WriteByte (a_NumSlots);
Flush();
}
void cProtocol125::SendWindowProperty(const cWindow & a_Window, short a_Property, short a_Value)
{
cCSLock Lock(m_CSPacket);
WriteByte (PACKET_WINDOW_PROPERTY);
WriteByte (a_Window.GetWindowID());
WriteShort(a_Property);
WriteShort(a_Value);
Flush();
}
AString cProtocol125::GetAuthServerID(void)
{
// http://wiki.vg/wiki/index.php?title=Session&oldid=2262
// The server generates a random hash and that is used for all clients, unmodified
return cRoot::Get()->GetServer()->GetServerID();
}
void cProtocol125::SendData(const char * a_Data, int a_Size)
{
m_Client->SendData(a_Data, a_Size);
}
void cProtocol125::DataReceived(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;
}
// Parse and handle all complete packets in m_ReceivedData:
while (m_ReceivedData.CanReadBytes(1))
{
unsigned char PacketType;
m_ReceivedData.ReadByte(PacketType);
switch (ParsePacket(PacketType))
{
case PARSE_UNKNOWN:
{
// An unknown packet has been received, notify the client and abort:
m_Client->PacketUnknown(PacketType);
return;
}
case PARSE_ERROR:
{
// An error occurred while parsing a known packet, notify the client and abort:
m_Client->PacketError(PacketType);
return;
}
case PARSE_INCOMPLETE:
{
// Incomplete packet, bail out and process with the next batch of data
m_ReceivedData.ResetRead();
return;
}
default:
{
// Packet successfully parsed, commit the read data and try again one more packet
m_ReceivedData.CommitRead();
break;
}
}
}
}
int cProtocol125::ParsePacket(unsigned char a_PacketType)
{
switch (a_PacketType)
{
default: return PARSE_UNKNOWN;
case PACKET_ANIMATION: return ParseArmAnim();
case PACKET_BLOCK_DIG: return ParseBlockDig();
case PACKET_BLOCK_PLACE: return ParseBlockPlace();
case PACKET_CHAT: return ParseChat();
case PACKET_CREATIVE_INVENTORY_ACTION: return ParseCreativeInventoryAction();
case PACKET_DISCONNECT: return ParseDisconnect();
case PACKET_HANDSHAKE: return ParseHandshake();
case PACKET_KEEP_ALIVE: return ParseKeepAlive();
case PACKET_LOGIN: return ParseLogin();
case PACKET_PACKET_ENTITY_ACTION: return ParseEntityAction();
case PACKET_PING: return ParsePing();
case PACKET_PLAYER_ABILITIES: return ParsePlayerAbilities();
case PACKET_PLAYER_LOOK: return ParsePlayerLook();
case PACKET_PLAYER_MOVE_LOOK: return ParsePlayerMoveLook();
case PACKET_PLAYER_ON_GROUND: return ParsePlayerOnGround();
case PACKET_PLAYER_POS: return ParsePlayerPosition();
case PACKET_PLUGIN_MESSAGE: return ParsePluginMessage();
case PACKET_RESPAWN: return ParseRespawn();
case PACKET_SLOT_SELECTED: return ParseSlotSelected();
case PACKET_UPDATE_SIGN: return ParseUpdateSign();
case PACKET_USE_ENTITY: return ParseUseEntity();
case PACKET_WINDOW_CLICK: return ParseWindowClick();
case PACKET_WINDOW_CLOSE: return ParseWindowClose();
}
}
#define HANDLE_PACKET_PARSE(Packet) \
{ \
int res = Packet.Parse(m_ReceivedData); \
if (res < 0) \
{ \
return res; \
} \
}
int cProtocol125::ParseArmAnim(void)
{
HANDLE_PACKET_READ(ReadBEInt, int, EntityID);
HANDLE_PACKET_READ(ReadChar, char, Animation);
m_Client->HandleAnimation(Animation);
return PARSE_OK;
}
int cProtocol125::ParseBlockDig(void)
{
HANDLE_PACKET_READ(ReadChar, char, Status);
HANDLE_PACKET_READ(ReadBEInt, int, PosX);
HANDLE_PACKET_READ(ReadByte, Byte, PosY);
HANDLE_PACKET_READ(ReadBEInt, int, PosZ);
HANDLE_PACKET_READ(ReadChar, char, BlockFace);
m_Client->HandleLeftClick(PosX, PosY, PosZ, BlockFace, Status);
return PARSE_OK;
}
int cProtocol125::ParseBlockPlace(void)
{
HANDLE_PACKET_READ(ReadBEInt, int, PosX);
HANDLE_PACKET_READ(ReadByte, Byte, PosY);
HANDLE_PACKET_READ(ReadBEInt, int, PosZ);
HANDLE_PACKET_READ(ReadChar, char, BlockFace);
cItem HeldItem;
int res = ParseItem(HeldItem);
if (res < 0)
{
return res;
}
// 1.2.5 didn't have any cursor position, so use 8, 8, 8, so that halfslabs and stairs work correctly and the special value is recognizable.
m_Client->HandleRightClick(PosX, PosY, PosZ, BlockFace, 8, 8, 8, HeldItem);
return PARSE_OK;
}
int cProtocol125::ParseChat(void)
{
HANDLE_PACKET_READ(ReadBEUTF16String16, AString, Message);
m_Client->HandleChat(Message);
return PARSE_OK;
}
int cProtocol125::ParseCreativeInventoryAction(void)
{
HANDLE_PACKET_READ(ReadBEShort, short, SlotNum);
cItem HeldItem;
int res = ParseItem(HeldItem);
if (res < 0)
{
return res;
}
m_Client->HandleCreativeInventory(SlotNum, HeldItem);
return PARSE_OK;
}
int cProtocol125::ParseDisconnect(void)
{
HANDLE_PACKET_READ(ReadBEUTF16String16, AString, Reason);
m_Client->HandleDisconnect(Reason);
return PARSE_OK;
}
int cProtocol125::ParseEntityAction(void)
{
HANDLE_PACKET_READ(ReadBEInt, int, EntityID);
HANDLE_PACKET_READ(ReadChar, char, ActionID);
m_Client->HandleEntityAction(EntityID, ActionID);
return PARSE_OK;
}
int cProtocol125::ParseHandshake(void)
{
HANDLE_PACKET_READ(ReadBEUTF16String16, AString, Username);
AStringVector UserData = StringSplit(Username, ";"); // "FakeTruth;localhost:25565"
if (UserData.empty())
{
m_Client->Kick("Did not receive username");
return PARSE_OK;
}
m_Username = UserData[0];
LOGD("HANDSHAKE %s", Username.c_str());
if (!m_Client->HandleHandshake( m_Username ))
{
return PARSE_OK; // Player is not allowed into the server
}
SendHandshake(cRoot::Get()->GetServer()->GetServerID());
LOGD("User \"%s\" was sent a handshake response", m_Username.c_str());
return PARSE_OK;
}
int cProtocol125::ParseKeepAlive(void)
{
HANDLE_PACKET_READ(ReadBEInt, int, KeepAliveID);
m_Client->HandleKeepAlive(KeepAliveID);
return PARSE_OK;
}
int cProtocol125::ParseLogin(void)
{
HANDLE_PACKET_READ(ReadBEInt, int, ProtocolVersion);
HANDLE_PACKET_READ(ReadBEUTF16String16, AString, Username);
HANDLE_PACKET_READ(ReadBEUTF16String16, AString, LevelType);
HANDLE_PACKET_READ(ReadBEInt, int, ServerMode);
HANDLE_PACKET_READ(ReadBEInt, int, Dimension);
HANDLE_PACKET_READ(ReadChar, char, Difficulty);
HANDLE_PACKET_READ(ReadByte, Byte, WorldHeight);
HANDLE_PACKET_READ(ReadByte, Byte, MaxPlayers);
if (ProtocolVersion < 29)
{
m_Client->Kick("Your client is outdated!");
return PARSE_OK;
}
else if (ProtocolVersion > 29)
{
m_Client->Kick("Your client version is higher than the server!");
return PARSE_OK;
}
if (m_Username.compare(Username) != 0)
{
LOGWARNING("Login Username (\"%s\") does not match Handshake username (\"%s\") for client @ \"%s\", kicking",
Username.c_str(),
m_Username.c_str(),
m_Client->GetIPString().c_str()
);
m_Client->Kick("Hacked client"); // Don't tell them why we don't want them
return PARSE_OK;
}
m_Client->HandleLogin(ProtocolVersion, Username);
return PARSE_OK;
}
int cProtocol125::ParsePing(void)
{
// Packet has no more data
m_Client->HandlePing();
return PARSE_OK;
}
int cProtocol125::ParsePlayerAbilities(void)
{
HANDLE_PACKET_READ(ReadBool, bool, Invulnerable);
HANDLE_PACKET_READ(ReadBool, bool, IsFlying);
HANDLE_PACKET_READ(ReadBool, bool, CanFly);
HANDLE_PACKET_READ(ReadBool, bool, InstaMine);
// TODO: m_Client->HandlePlayerAbilities(...);
return PARSE_OK;
}
int cProtocol125::ParsePlayerLook(void)
{
HANDLE_PACKET_READ(ReadBEFloat, float, Rotation);
HANDLE_PACKET_READ(ReadBEFloat, float, Pitch);
HANDLE_PACKET_READ(ReadBool, bool, IsOnGround);
m_Client->HandlePlayerLook(Rotation, Pitch, IsOnGround);
return PARSE_OK;
}
int cProtocol125::ParsePlayerMoveLook(void)
{
HANDLE_PACKET_READ(ReadBEDouble, double, PosX);
HANDLE_PACKET_READ(ReadBEDouble, double, PosY);
HANDLE_PACKET_READ(ReadBEDouble, double, Stance);
HANDLE_PACKET_READ(ReadBEDouble, double, PosZ);
HANDLE_PACKET_READ(ReadBEFloat, float, Rotation);
HANDLE_PACKET_READ(ReadBEFloat, float, Pitch);
HANDLE_PACKET_READ(ReadBool, bool, IsOnGround);
// LOGD("Recv PML: {%0.2f, %0.2f, %0.2f}, Stance %0.2f, Gnd: %d", PosX, PosY, PosZ, Stance, IsOnGround ? 1 : 0);
m_Client->HandlePlayerMoveLook(PosX, PosY, PosZ, Stance, Rotation, Pitch, IsOnGround);
return PARSE_OK;
}
int cProtocol125::ParsePlayerOnGround(void)
{
HANDLE_PACKET_READ(ReadBool, bool, IsOnGround);
// TODO: m_Client->HandleFlying(IsOnGround);
return PARSE_OK;
}
int cProtocol125::ParsePlayerPosition(void)
{
HANDLE_PACKET_READ(ReadBEDouble, double, PosX);
HANDLE_PACKET_READ(ReadBEDouble, double, PosY);
HANDLE_PACKET_READ(ReadBEDouble, double, Stance);
HANDLE_PACKET_READ(ReadBEDouble, double, PosZ);
HANDLE_PACKET_READ(ReadBool, bool, IsOnGround);
m_Client->HandlePlayerPos(PosX, PosY, PosZ, Stance, IsOnGround);
return PARSE_OK;
}
int cProtocol125::ParsePluginMessage(void)
{
HANDLE_PACKET_READ(ReadBEUTF16String16, AString, ChannelName);
HANDLE_PACKET_READ(ReadBEShort, short, Length);
AString Data;
if (!m_ReceivedData.ReadString(Data, Length))
{
m_ReceivedData.CheckValid();
return PARSE_INCOMPLETE;
}
m_ReceivedData.CheckValid();
// TODO: Process the data
LOGD("Received %d bytes of plugin data on channel \"%s\".", Length, ChannelName.c_str());
return PARSE_OK;
}
int cProtocol125::ParseRespawn(void)
{
HANDLE_PACKET_READ(ReadBEInt, int, Dimension);
HANDLE_PACKET_READ(ReadChar, char, Difficulty);
HANDLE_PACKET_READ(ReadChar, char, CreativeMode);
HANDLE_PACKET_READ(ReadBEShort, short, WorldHeight);
HANDLE_PACKET_READ(ReadBEUTF16String16, AString, LevelType);
m_Client->HandleRespawn();
return PARSE_OK;
}
int cProtocol125::ParseSlotSelected(void)
{
HANDLE_PACKET_READ(ReadBEShort, short, SlotNum);
m_Client->HandleSlotSelected(SlotNum);
return PARSE_OK;
}
int cProtocol125::ParseUpdateSign(void)
{
HANDLE_PACKET_READ(ReadBEInt, int, BlockX);
HANDLE_PACKET_READ(ReadBEShort, short, BlockY);
HANDLE_PACKET_READ(ReadBEInt, int, BlockZ);
HANDLE_PACKET_READ(ReadBEUTF16String16, AString, Line1);
HANDLE_PACKET_READ(ReadBEUTF16String16, AString, Line2);
HANDLE_PACKET_READ(ReadBEUTF16String16, AString, Line3);
HANDLE_PACKET_READ(ReadBEUTF16String16, AString, Line4);
m_Client->HandleUpdateSign(BlockX, BlockY, BlockZ, Line1, Line2, Line3, Line4);
return PARSE_OK;
}
int cProtocol125::ParseUseEntity(void)
{
HANDLE_PACKET_READ(ReadBEInt, int, SourceEntityID);
HANDLE_PACKET_READ(ReadBEInt, int, TargetEntityID);
HANDLE_PACKET_READ(ReadBool, bool, IsLeftClick);
m_Client->HandleUseEntity(TargetEntityID, IsLeftClick);
return PARSE_OK;
}
int cProtocol125::ParseWindowClick(void)
{
HANDLE_PACKET_READ(ReadChar, char, WindowID);
HANDLE_PACKET_READ(ReadBEShort, short, SlotNum);
HANDLE_PACKET_READ(ReadBool, bool, IsRightClick);
HANDLE_PACKET_READ(ReadBEShort, short, TransactionID);
HANDLE_PACKET_READ(ReadBool, bool, IsShiftPressed);
cItem HeldItem;
int res = ParseItem(HeldItem);
if (res < 0)
{
return res;
}
// Convert IsShiftPressed, IsRightClick, SlotNum and HeldItem into eClickAction used in the newer protocols:
eClickAction Action;
if (IsRightClick)
{
if (IsShiftPressed)
{
Action = caShiftRightClick;
}
else
{
if (SlotNum == -999)
{
Action = (HeldItem.IsEmpty()) ? caRightClickOutsideHoldNothing : caRightClickOutside;
}
else
{
Action = caRightClick;
}
}
}
else
{
// IsLeftClick
if (IsShiftPressed)
{
Action = caShiftLeftClick;
}
else
{
if (SlotNum == -999)
{
Action = (HeldItem.IsEmpty()) ? caLeftClickOutsideHoldNothing : caRightClickOutside;
}
else
{
Action = caLeftClick;
}
}
}
m_Client->HandleWindowClick(WindowID, SlotNum, Action, HeldItem);
return PARSE_OK;
}
int cProtocol125::ParseWindowClose(void)
{
HANDLE_PACKET_READ(ReadChar, char, WindowID);
m_Client->HandleWindowClose(WindowID);
return PARSE_OK;
}
void cProtocol125::SendPreChunk(int a_ChunkX, int a_ChunkZ, bool a_ShouldLoad)
{
WriteByte(PACKET_PRE_CHUNK);
WriteInt (a_ChunkX);
WriteInt (a_ChunkZ);
WriteBool(a_ShouldLoad);
Flush();
}
void cProtocol125::SendWindowSlots(char a_WindowID, int a_NumItems, const cItem * a_Items)
{
WriteByte (PACKET_INVENTORY_WHOLE);
WriteByte (a_WindowID);
WriteShort((short)a_NumItems);
for (int j = 0; j < a_NumItems; j++)
{
WriteItem(a_Items[j]);
}
Flush();
}
void cProtocol125::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;
}
WriteShort(ItemType);
if (a_Item.IsEmpty())
{
return;
}
WriteByte (a_Item.m_ItemCount);
WriteShort(a_Item.m_ItemDamage);
if (cItem::IsEnchantable(a_Item.m_ItemType))
{
// TODO: Implement enchantments
WriteShort(-1);
}
}
int cProtocol125::ParseItem(cItem & a_Item)
{
HANDLE_PACKET_READ(ReadBEShort, short, ItemType);
if (ItemType <= -1)
{
a_Item.Empty();
return PARSE_OK;
}
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();
}
if (!cItem::IsEnchantable(ItemType))
{
return PARSE_OK;
}
HANDLE_PACKET_READ(ReadBEShort, short, EnchantNumBytes);
if (EnchantNumBytes <= 0)
{
return PARSE_OK;
}
// TODO: Enchantment not implemented yet!
if (!m_ReceivedData.SkipRead(EnchantNumBytes))
{
return PARSE_INCOMPLETE;
}
return PARSE_OK;
}
AString cProtocol125::GetEntityMetaData(const cEntity & a_Entity)
{
// We should send all the metadata here
AString MetaData;
// Common metadata (index 0, byte):
MetaData.push_back(0);
MetaData.push_back(GetEntityMetadataFlags(a_Entity));
// TODO: Add more entity-specific metadata
MetaData.push_back(0x7f); // End metadata
return MetaData;
}
char cProtocol125::GetEntityMetadataFlags(const cEntity & a_Entity)
{
char Flags = 0;
if (a_Entity.IsOnFire())
{
Flags |= 1;
}
if (a_Entity.IsCrouched())
{
Flags |= 2;
}
if (a_Entity.IsRiding())
{
Flags |= 4;
}
if (a_Entity.IsSprinting())
{
Flags |= 8;
}
if (a_Entity.IsRclking())
{
Flags |= 16;
}
return Flags;
}
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