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// cClientHandle.h
// Interfaces to the cClientHandle class representing a client connected to this server. The client need not be a player yet
#pragma once
#ifndef CCLIENTHANDLE_H_INCLUDED
#define CCLIENTHANDLE_H_INCLUDED
#include "packets/cPacket.h"
#include "Vector3d.h"
#include "cSocketThreads.h"
#include "cChunk.h"
#include "packets/cPacket_KeepAlive.h"
#include "packets/cPacket_PlayerPosition.h"
#include "packets/cPacket_Respawn.h"
#include "packets/cPacket_RelativeEntityMoveLook.h"
#include "packets/cPacket_Chat.h"
#include "packets/cPacket_Login.h"
#include "packets/cPacket_WindowClick.h"
#include "packets/cPacket_PlayerMoveLook.h"
#include "packets/cPacket_TimeUpdate.h"
#include "packets/cPacket_BlockDig.h"
#include "packets/cPacket_Handshake.h"
#include "packets/cPacket_PlayerLook.h"
#include "packets/cPacket_ArmAnim.h"
#include "packets/cPacket_BlockPlace.h"
#include "packets/cPacket_Flying.h"
#include "packets/cPacket_Disconnect.h"
#include "packets/cPacket_PickupSpawn.h"
#include "packets/cPacket_ItemSwitch.h"
#include "packets/cPacket_EntityEquipment.h"
#include "packets/cPacket_CreativeInventoryAction.h"
#include "packets/cPacket_NewInvalidState.h"
#include "packets/cPacket_UseEntity.h"
#include "packets/cPacket_WindowClose.h"
#include "packets/cPacket_UpdateSign.h"
#include "packets/cPacket_Ping.h"
#include "packets/cPacket_PlayerListItem.h"
class cPlayer;
class cRedstone;
class cClientHandle : // tolua_export
public cSocketThreads::cCallback
{ // tolua_export
public:
enum ENUM_PRIORITY
{
E_PRIORITY_LOW,
E_PRIORITY_NORMAL
};
static const int MAXBLOCKCHANGEINTERACTIONS = 10; // 5 didn't help, 10 seems to have done the trick
static const int DEFAULT_VIEW_DISTANCE = 9; // The default ViewDistance (used when no value is set in Settings.ini)
static const int MAX_VIEW_DISTANCE = 10;
static const int MIN_VIEW_DISTANCE = 4;
cClientHandle(const cSocket & a_Socket, int a_ViewDistance);
~cClientHandle();
const cSocket & GetSocket(void) const {return m_Socket; }
cSocket & GetSocket(void) {return m_Socket; }
cPlayer* GetPlayer() { return m_Player; } // tolua_export
void Kick(const AString & a_Reason); //tolua_export
void Authenticate(void); // Called by cAuthenticator when the user passes authentication
void StreamChunks(void);
// Removes the client from all chunks. Used when switching worlds or destroying the player
void RemoveFromAllChunks(void);
void ChunkJustSent(cChunk * a_ChunkSent); // Called by cChunk when it is loaded / generated and sent to all clients registered in it
inline bool IsLoggedIn(void) const { return m_State >= csAuthenticating; }
void Tick(float a_Dt);
bool IsDestroyed() { return m_bDestroyed; }
void Destroy();
void Send(const cPacket & a_Packet, ENUM_PRIORITY a_Priority = E_PRIORITY_NORMAL) { Send(&a_Packet, a_Priority); }
void Send(const cPacket * a_Packet, ENUM_PRIORITY a_Priority = E_PRIORITY_NORMAL);
static void SendThread( void *lpParam );
const AString & GetUsername(void) const;
inline short GetPing() { return m_Ping; }
void SetViewDistance(int a_ViewDistance);
private:
int m_ViewDistance; // Number of chunks the player can see in each direction; 4 is the minimum ( http://wiki.vg/Protocol_FAQ#.E2.80.A6all_connecting_clients_spasm_and_jerk_uncontrollably.21 )
static const int GENERATEDISTANCE = 2; // Server generates this many chunks AHEAD of player sight. 2 is the minimum, since foliage is generated 1 step behind chunk terrain generation
int m_ProtocolVersion;
AString m_Username;
AString m_Password;
AString m_ReceivedData; // Accumulator for the data received from the socket, waiting to be parsed; accessed from the cSocketThreads' thread only!
PacketList m_PendingNrmSendPackets;
PacketList m_PendingLowSendPackets;
cCriticalSection m_CSChunkLists;
cChunkCoordsList m_LoadedChunks; // Chunks that the player belongs to
cChunkCoordsList m_ChunksToSend; // Chunks that need to be sent to the player (queued because they weren't generated yet or there's not enough time to send them)
cThread * m_pSendThread;
cSocket m_Socket;
cCriticalSection m_CriticalSection;
cCriticalSection m_SendCriticalSection;
cSemaphore m_Semaphore;
Vector3d m_ConfirmPosition;
cPacket * m_PacketMap[256];
bool m_bDestroyed;
cPlayer * m_Player;
bool m_bKicking;
// Chunk position when the last StreamChunks() was called; used to avoid re-streaming while in the same chunk
int m_LastStreamedChunkX;
int m_LastStreamedChunkZ;
float m_TimeLastPacket;
short m_Ping;
int m_PingID;
long long m_PingStartTime;
long long m_LastPingTime;
static const unsigned short PING_TIME_MS = 1000; //minecraft sends 1 per 20 ticks (1 second or every 1000 ms)
enum eState
{
csConnected, // The client has just connected, waiting for their handshake / login
csAuthenticating, // The client has logged in, waiting for external authentication
csDownloadingWorld, // The client is waiting for chunks, we're waiting for the loader to provide and send them
csConfirmingPos, // The client has been sent the position packet, waiting for them to repeat the position back
csPlaying, // Normal gameplay
// TODO: Add Kicking and Destroyed here as well
} ;
eState m_State;
bool m_bKeepThreadGoing;
void HandlePacket(cPacket * a_Packet);
// Packets handled in csConnected:
void HandlePing (void);
void HandleHandshake (cPacket_Handshake * a_Packet);
void HandleLogin (cPacket_Login * a_Packet);
void HandleUnexpectedPacket(cPacket * a_Packet); // the default case -> kick
// Packets handled while in csConfirmingPos:
void HandleMoveLookConfirm(cPacket_PlayerMoveLook * a_Packet); // While !m_bPositionConfirmed
// Packets handled while in csPlaying:
void HandleCreativeInventory(cPacket_CreativeInventoryAction * a_Packet);
void HandlePlayerPos (cPacket_PlayerPosition * a_Packet);
void HandleBlockDig (cPacket_BlockDig * a_Packet);
void HandleBlockPlace (cPacket_BlockPlace * a_Packet);
void HandlePickupSpawn (cPacket_PickupSpawn * a_Packet);
void HandleChat (cPacket_Chat * a_Packet);
void HandlePlayerLook (cPacket_PlayerLook * a_Packet);
void HandlePlayerMoveLook (cPacket_PlayerMoveLook * a_Packet); // While m_bPositionConfirmed (normal gameplay)
void HandleAnimation (cPacket_ArmAnim * a_Packet);
void HandleItemSwitch (cPacket_ItemSwitch * a_Packet);
void HandleWindowClose (cPacket_WindowClose * a_Packet);
void HandleWindowClick (cPacket_WindowClick * a_Packet);
void HandleUpdateSign (cPacket_UpdateSign * a_Packet);
void HandleUseEntity (cPacket_UseEntity * a_Packet);
void HandleRespawn (void);
void HandleDisconnect (cPacket_Disconnect * a_Packet);
void HandleKeepAlive (cPacket_KeepAlive * a_Packet);
/// Returns true if the rate block interactions is within a reasonable limit (bot protection)
bool CheckBlockInteractionsRate(void);
/// Checks whether all loaded chunks have been sent to the client; if so, sends the position to confirm
void CheckIfWorldDownloaded(void);
/// Sends the PlayerMoveLook packet that the client needs to reply to for the game to start
void SendConfirmPosition(void);
/// Adds a single chunk to be streamed to the client; used by StreamChunks()
void StreamChunk(int a_ChunkX, int a_ChunkY, int a_ChunkZ);
// cSocketThreads::cCallback overrides:
virtual void DataReceived (const char * a_Data, int a_Size) override; // Data is received from the client
virtual void GetOutgoingData(AString & a_Data) override; // Data can be sent to client
virtual void SocketClosed (void) override; // The socket has been closed for any reason
}; // tolua_export
#endif // CCLIENTHANDLE_H_INCLUDED
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