217 lines
7.9 KiB
C++
217 lines
7.9 KiB
C++
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// Protocol.h
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// Interfaces to the cProtocol class representing the generic interface that a protocol
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// parser and serializer must implement
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#pragma once
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#include "../Defines.h"
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#include "../Endianness.h"
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class cPlayer;
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class cEntity;
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class cWindow;
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class cInventory;
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class cPawn;
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class cPickup;
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class cMonster;
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class cChunkDataSerializer;
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class cWorld;
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class cFallingBlock;
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typedef unsigned char Byte;
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class cProtocol
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{
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public:
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cProtocol(cClientHandle * a_Client) :
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m_Client(a_Client)
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{
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}
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virtual ~cProtocol() {}
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/// Called when client sends some data
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virtual void DataReceived(const char * a_Data, int a_Size) = 0;
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// Sending stuff to clients (alphabetically sorted):
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virtual void SendAttachEntity (const cEntity & a_Entity, const cEntity * a_Vehicle) = 0;
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virtual void SendBlockAction (int a_BlockX, int a_BlockY, int a_BlockZ, char a_Byte1, char a_Byte2, BLOCKTYPE a_BlockType) = 0;
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virtual void SendBlockBreakAnim (int a_EntityID, int a_BlockX, int a_BlockY, int a_BlockZ, char a_Stage) = 0;
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virtual void SendBlockChange (int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) = 0;
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virtual void SendBlockChanges (int a_ChunkX, int a_ChunkZ, const sSetBlockVector & a_Changes) = 0;
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virtual void SendChat (const AString & a_Message) = 0;
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virtual void SendChunkData (int a_ChunkX, int a_ChunkZ, cChunkDataSerializer & a_Serializer) = 0;
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virtual void SendCollectPickup (const cPickup & a_Pickup, const cPlayer & a_Player) = 0;
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virtual void SendDestroyEntity (const cEntity & a_Entity) = 0;
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virtual void SendDisconnect (const AString & a_Reason) = 0;
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virtual void SendEditSign (int a_BlockX, int a_BlockY, int a_BlockZ) = 0; ///< Request the client to open up the sign editor for the sign (1.6+)
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virtual void SendEntityEquipment (const cEntity & a_Entity, short a_SlotNum, const cItem & a_Item) = 0;
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virtual void SendEntityHeadLook (const cEntity & a_Entity) = 0;
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virtual void SendEntityLook (const cEntity & a_Entity) = 0;
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virtual void SendEntityMetadata (const cEntity & a_Entity) = 0;
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virtual void SendEntityProperties (const cEntity & a_Entity) = 0;
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virtual void SendEntityRelMove (const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ) = 0;
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virtual void SendEntityRelMoveLook (const cEntity & a_Entity, char a_RelX, char a_RelY, char a_RelZ) = 0;
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virtual void SendEntityStatus (const cEntity & a_Entity, char a_Status) = 0;
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virtual void SendEntityVelocity (const cEntity & a_Entity) = 0;
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virtual void SendExplosion (double a_BlockX, double a_BlockY, double a_BlockZ, float a_Radius, const cVector3iArray & a_BlocksAffected, const Vector3d & a_PlayerMotion) = 0;
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virtual void SendGameMode (eGameMode a_GameMode) = 0;
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virtual void SendHealth (void) = 0;
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virtual void SendInventorySlot (char a_WindowID, short a_SlotNum, const cItem & a_Item) = 0;
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virtual void SendKeepAlive (int a_PingID) = 0;
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virtual void SendLogin (const cPlayer & a_Player, const cWorld & a_World) = 0;
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virtual void SendPickupSpawn (const cPickup & a_Pickup) = 0;
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virtual void SendPlayerAbilities (void) = 0;
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virtual void SendPlayerAnimation (const cPlayer & a_Player, char a_Animation) = 0;
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virtual void SendPlayerListItem (const cPlayer & a_Player, bool a_IsOnline) = 0;
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virtual void SendPlayerMaxSpeed (void) = 0; ///< Informs the client of the maximum player speed (1.6.1+)
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virtual void SendPlayerMoveLook (void) = 0;
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virtual void SendPlayerPosition (void) = 0;
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virtual void SendPlayerSpawn (const cPlayer & a_Player) = 0;
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virtual void SendRespawn (void) = 0;
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virtual void SendSoundEffect (const AString & a_SoundName, int a_SrcX, int a_SrcY, int a_SrcZ, float a_Volume, float a_Pitch) = 0; // a_Src coords are Block * 8
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virtual void SendSoundParticleEffect (int a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data) = 0;
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virtual void SendSpawnFallingBlock (const cFallingBlock & a_FallingBlock) = 0;
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virtual void SendSpawnMob (const cMonster & a_Mob) = 0;
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virtual void SendSpawnObject (const cEntity & a_Entity, char a_ObjectType, int a_ObjectData, Byte a_Yaw, Byte a_Pitch) = 0;
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virtual void SendSpawnVehicle (const cEntity & a_Vehicle, char a_VehicleType, char a_VehicleSubType) = 0;
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virtual void SendTabCompletionResults(const AStringVector & a_Results) = 0;
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virtual void SendTeleportEntity (const cEntity & a_Entity) = 0;
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virtual void SendThunderbolt (int a_BlockX, int a_BlockY, int a_BlockZ) = 0;
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virtual void SendTimeUpdate (Int64 a_WorldAge, Int64 a_TimeOfDay) = 0;
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virtual void SendUnloadChunk (int a_ChunkX, int a_ChunkZ) = 0;
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virtual void 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) = 0;
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virtual void SendUseBed (const cEntity & a_Entity, int a_BlockX, int a_BlockY, int a_BlockZ ) = 0;
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virtual void SendWeather (eWeather a_Weather) = 0;
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virtual void SendWholeInventory (const cInventory & a_Inventory) = 0;
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virtual void SendWholeInventory (const cWindow & a_Window) = 0;
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virtual void SendWindowClose (const cWindow & a_Window) = 0;
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virtual void SendWindowOpen (char a_WindowID, char a_WindowType, const AString & a_WindowTitle, char a_NumSlots) = 0;
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virtual void SendWindowProperty (const cWindow & a_Window, short a_Property, short a_Value) = 0;
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/// Returns the ServerID used for authentication through session.minecraft.net
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virtual AString GetAuthServerID(void) = 0;
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protected:
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cClientHandle * m_Client;
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cCriticalSection m_CSPacket; //< Each SendXYZ() function must acquire this CS in order to send the whole packet at once
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/// A generic data-sending routine, all outgoing packet data needs to be routed through this so that descendants may override it
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virtual void SendData(const char * a_Data, int a_Size) = 0;
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/// Called after writing each packet, enables descendants to flush their buffers
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virtual void Flush(void) {};
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// Helpers for writing partial packet data, write using SendData()
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void WriteByte(Byte a_Value)
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{
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SendData((const char *)&a_Value, 1);
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}
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void WriteShort(short a_Value)
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{
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a_Value = htons(a_Value);
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SendData((const char *)&a_Value, 2);
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}
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/*
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void WriteShort(unsigned short a_Value)
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{
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a_Value = htons(a_Value);
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SendData((const char *)&a_Value, 2);
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}
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*/
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void WriteInt(int a_Value)
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{
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a_Value = htonl(a_Value);
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SendData((const char *)&a_Value, 4);
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}
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void WriteUInt(unsigned int a_Value)
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{
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a_Value = htonl(a_Value);
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SendData((const char *)&a_Value, 4);
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}
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void WriteInt64 (Int64 a_Value)
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{
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a_Value = HostToNetwork8(&a_Value);
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SendData((const char *)&a_Value, 8);
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}
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void WriteFloat (float a_Value)
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{
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unsigned int val = HostToNetwork4(&a_Value);
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SendData((const char *)&val, 4);
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}
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void WriteDouble(double a_Value)
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{
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unsigned long long val = HostToNetwork8(&a_Value);
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SendData((const char *)&val, 8);
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}
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void WriteString(const AString & a_Value)
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{
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AString UTF16;
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UTF8ToRawBEUTF16(a_Value.c_str(), a_Value.length(), UTF16);
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WriteShort((unsigned short)(UTF16.size() / 2));
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SendData(UTF16.data(), UTF16.size());
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}
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void WriteBool(bool a_Value)
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{
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WriteByte(a_Value ? 1 : 0);
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}
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void WriteVectorI(const Vector3i & a_Vector)
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{
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WriteInt(a_Vector.x);
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WriteInt(a_Vector.y);
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WriteInt(a_Vector.z);
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}
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void WriteVarInt(UInt32 a_Value)
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{
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// A 32-bit integer can be encoded by at most 5 bytes:
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unsigned char b[5];
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int idx = 0;
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do
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{
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b[idx] = (a_Value & 0x7f) | ((a_Value > 0x7f) ? 0x80 : 0x00);
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a_Value = a_Value >> 7;
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idx++;
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} while (a_Value > 0);
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SendData((const char *)b, idx);
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}
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void WriteVarUTF8String(const AString & a_String)
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{
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WriteVarInt(a_String.size());
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SendData(a_String.data(), a_String.size());
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}
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} ;
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