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212 lines
9.1 KiB
212 lines
9.1 KiB
/*==LICENSE==* |
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CyanWorlds.com Engine - MMOG client, server and tools |
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Copyright (C) 2011 Cyan Worlds, Inc. |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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Additional permissions under GNU GPL version 3 section 7 |
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If you modify this Program, or any covered work, by linking or |
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combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK, |
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NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent |
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JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK |
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(or a modified version of those libraries), |
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containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA, |
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PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG |
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JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the |
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licensors of this Program grant you additional |
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permission to convey the resulting work. Corresponding Source for a |
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non-source form of such a combination shall include the source code for |
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the parts of OpenSSL and IJG JPEG Library used as well as that of the covered |
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work. |
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You can contact Cyan Worlds, Inc. by email legal@cyan.com |
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or by snail mail at: |
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Cyan Worlds, Inc. |
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14617 N Newport Hwy |
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Mead, WA 99021 |
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*==LICENSE==*/ |
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#ifndef plMessage_inc |
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#define plMessage_inc |
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#include "pnFactory/plCreatable.h" |
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#include "pnKeyedObject/plKey.h" |
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#include "hsTemplates.h" |
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#include "hsStlUtils.h" |
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class plKey; |
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class hsStream; |
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// Base class for messages only has enough info to route it |
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// and send it over the wire (Read/Write). |
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class plMessage : public plCreatable |
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{ |
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public: |
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typedef UInt16 plStrLen; |
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enum plBCastFlags { |
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kBCastNone = 0x0, |
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kBCastByType = 0x1, // To everyone registered for this msg type or msgs this is derived from |
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kBCastUNUSED_0 = 0x2, // Obsolete option (never used). Was BCastBySender |
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kPropagateToChildren = 0x4, // Propagate down through SceneObject heirarchy |
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kBCastByExactType = 0x8, // To everyone registered for this exact msg type. |
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kPropagateToModifiers = 0x10, // Send the msg to an object and all its modifier |
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kClearAfterBCast = 0x20, // Clear registration for this type after sending this msg |
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kNetPropagate = 0x40, // Propagate this message over the network (remotely) |
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kNetSent = 0x80, // Internal use-This msg has been sent over the network |
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kNetUseRelevanceRegions = 0x100, // Used along with NetPropagate to filter the msg bcast using relevance regions |
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kNetForce = 0x200, // Used along with NetPropagate to force the msg to go out (ie. ignore cascading rules) |
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kNetNonLocal = 0x400, // Internal use-This msg came in over the network (remote msg) |
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kLocalPropagate = 0x800, // Propagate this message locally (ON BY DEFAULT) |
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kNetNonDeterministic = kNetForce, // This msg is a non-deterministic response to another msg |
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kMsgWatch = 0x1000, // Debug only - will break in dispatch before sending this msg |
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kNetStartCascade = 0x2000, // Internal use-msg is non-local and initiates a cascade of net msgs. This bit is not inherited or computed, it's a property. |
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kNetAllowInterAge = 0x4000, // If rcvr is online but not in current age, they will receive msg courtesy of pls routing. |
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kNetSendUnreliable = 0x8000, // Don't use reliable send when net propagating |
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kCCRSendToAllPlayers = 0x10000, // CCRs can send a plMessage to all online players. |
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kNetCreatedRemotely = 0x20000, // kNetSent and kNetNonLocal are inherited by child messages sent off while processing a net-propped |
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// parent. This flag ONLY gets sent on the actual message that went across the wire. |
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}; |
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private: |
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bool dispatchBreak; |
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friend class plDispatch; |
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friend class plDispatchLog; |
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protected: |
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plKey fSender; |
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hsTArray<plKey> fReceivers; |
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double fTimeStamp; |
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UInt32 fBCastFlags; |
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std::vector<UInt32>* fNetRcvrPlayerIDs; |
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void IMsgRead(hsStream* stream, hsResMgr* mgr); // default read implementation |
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void IMsgWrite(hsStream* stream, hsResMgr* mgr); // default write implementation |
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void IMsgReadVersion(hsStream* stream, hsResMgr* mgr); |
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void IMsgWriteVersion(hsStream* stream, hsResMgr* mgr); |
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public: |
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plMessage(); |
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plMessage(const plKey &s, |
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const plKey &r, |
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const double* t); |
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virtual ~plMessage(); |
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CLASSNAME_REGISTER( plMessage ); |
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GETINTERFACE_ANY( plMessage, plCreatable ); |
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// These must be implemented by all derived message classes (hence pure). |
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// Derived classes should call the base-class default read/write implementation, |
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// so the derived Read() should call plMessage::IMsgRead(). |
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virtual void Read(hsStream* stream, hsResMgr* mgr) = 0; |
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virtual void Write(hsStream* stream, hsResMgr* mgr) = 0; |
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const plKey GetSender() const { return fSender; } |
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plMessage& SetSender(const plKey &s) { fSender = s; return *this; } |
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plMessage& SetNumReceivers(int n); |
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UInt32 GetNumReceivers() const ; |
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const plKey& GetReceiver(int i) const; |
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plMessage& RemoveReceiver(int i); |
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plMessage& ClearReceivers(); |
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plMessage& AddReceiver(const plKey &r); |
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plMessage& AddReceivers(const hsTArray<plKey>& rList); |
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hsBool Send(const plKey r=nil, hsBool async=false); // Message will self-destruct after send. |
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hsBool SendAndKeep(const plKey r=nil, hsBool async=false); // Message won't self-destruct after send. |
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const double GetTimeStamp() const { return fTimeStamp; } |
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plMessage& SetTimeStamp(double t) { fTimeStamp = t; return *this; } |
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hsBool HasBCastFlag(UInt32 f) const { return 0 != (fBCastFlags & f); } |
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plMessage& SetBCastFlag(UInt32 f, hsBool on=true) { if( on )fBCastFlags |= f; else fBCastFlags &= ~f; return *this; } |
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void SetAllBCastFlags(UInt32 f) { fBCastFlags=f; } |
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UInt32 GetAllBCastFlags() const { return fBCastFlags; } |
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void AddNetReceiver( UInt32 plrID ); |
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void AddNetReceivers( const std::vector<UInt32> & plrIDs ); |
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std::vector<UInt32>* GetNetReceivers() const { return fNetRcvrPlayerIDs; } |
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// just before dispatching this message, drop into debugger |
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void SetBreakBeforeDispatch (bool on) { dispatchBreak = on; } |
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bool GetBreakBeforeDispatch () const { return dispatchBreak; } |
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}; |
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///////////////////////////////////////////////////////////////// |
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// Helpers for reading/writing these types: |
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// std::string |
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// xtl::istring |
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// c strings (char *) |
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// c arrays (type []) |
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///////////////////////////////////////////////////////////////// |
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// reads/writes your std::string field |
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struct plMsgStdStringHelper |
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{ |
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static int Poke(const std::string & stringref, hsStream* stream, const UInt32 peekOptions=0); |
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static int PokeBig(const std::string & stringref, hsStream* stream, const UInt32 peekOptions=0); |
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static int Poke(const char * buf, UInt32 bufsz, hsStream* stream, const UInt32 peekOptions=0); |
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static int PokeBig(const char * buf, UInt32 bufsz, hsStream* stream, const UInt32 peekOptions=0); |
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static int Peek(std::string & stringref, hsStream* stream, const UInt32 peekOptions=0); |
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static int PeekBig(std::string & stringref, hsStream* stream, const UInt32 peekOptions=0); |
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}; |
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///////////////////////////////////////////////////////////////// |
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// reads/writes your xtl::istring field |
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struct plMsgXtlStringHelper |
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{ |
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static int Poke(const xtl::istring & stringref, hsStream* stream, const UInt32 peekOptions=0); |
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static int Peek(xtl::istring & stringref, hsStream* stream, const UInt32 peekOptions=0); |
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}; |
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///////////////////////////////////////////////////////////////// |
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// reads/writes your char * field |
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struct plMsgCStringHelper |
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{ |
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static int Poke(const char * str, hsStream* stream, const UInt32 peekOptions=0); |
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// deletes str and reallocates. you must delete [] str; |
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static int Peek(char *& str, hsStream* stream, const UInt32 peekOptions=0); |
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}; |
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///////////////////////////////////////////////////////////////// |
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// reads/writes your type [] field |
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// don't use with byte ordered types like Int16,32. |
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// fine for Int8, char, and IEEE formatted types like float, double. |
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struct plMsgCArrayHelper |
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{ |
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static int Poke(const void * buf, UInt32 bufsz, hsStream* stream, const UInt32 peekOptions=0); |
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static int Peek(void * buf, UInt32 bufsz, hsStream* stream, const UInt32 peekOptions=0); |
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}; |
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#endif // plMessage_inc
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