dvander@592: /**
ds@653:  * vim: set ts=4 :
ds@1330:  * =============================================================================
dvander@1231:  * SourceMod
ds@1947:  * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.
ds@1330:  * =============================================================================
ds@653:  *
ds@1330:  * This program is free software; you can redistribute it and/or modify it under
ds@1330:  * the terms of the GNU General Public License, version 3.0, as published by the
ds@1330:  * Free Software Foundation.
dvander@1231:  * 
ds@1330:  * This program is distributed in the hope that it will be useful, but WITHOUT
ds@1330:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
ds@1330:  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
ds@1330:  * details.
dvander@1231:  *
ds@1330:  * You should have received a copy of the GNU General Public License along with
ds@1330:  * this program.  If not, see <http://www.gnu.org/licenses/>.
dvander@1231:  *
ds@1330:  * As a special exception, AlliedModders LLC gives you permission to link the
ds@1330:  * code of this program (as well as its derivative works) to "Half-Life 2," the
ds@1330:  * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
ds@1330:  * by the Valve Corporation.  You must obey the GNU General Public License in
ds@1330:  * all respects for all other code used.  Additionally, AlliedModders LLC grants
ds@1330:  * this exception to all derivative works.  AlliedModders LLC defines further
ds@1330:  * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
ds@1330:  * or <http://www.sourcemod.net/license.php>.
ds@653:  *
ds@653:  * Version: $Id$
ds@653:  */
dvander@592: 
dvander@592: #ifndef _INCLUDE_SOURCEMOD_CUSERMESSAGES_H_
dvander@592: #define _INCLUDE_SOURCEMOD_CUSERMESSAGES_H_
dvander@592: 
dvander@592: #include "ShareSys.h"
dvander@592: #include <IUserMessages.h>
dvander@592: #include "sourcemm_api.h"
dvander@592: #include "sm_trie.h"
dvander@592: #include "CellRecipientFilter.h"
dvander@592: 
dvander@592: using namespace SourceHook;
dvander@592: using namespace SourceMod;
dvander@592: 
dvander@592: #define INVALID_MESSAGE_ID -1
dvander@592: 
faluco@593: struct ListenerInfo
faluco@593: {
faluco@593: 	IUserMessageListener *Callback;
faluco@593: 	bool IsHooked;
faluco@593: 	bool KillMe;
dvander@2636: 	bool IsNew;
faluco@593: };
faluco@593: 
faluco@593: typedef List<ListenerInfo *> MsgList;
faluco@593: typedef List<ListenerInfo *>::iterator MsgIter;
dvander@592: 
dvander@616: class UserMessages : 
dvander@592: 	public IUserMessages,
dvander@592: 	public SMGlobalClass
dvander@592: {
dvander@592: public:
dvander@616: 	UserMessages();
dvander@616: 	~UserMessages();
dvander@592: public: //SMGlobalClass
ds@765: 	void OnSourceModStartup(bool late);
dvander@592: 	void OnSourceModAllInitialized();
dvander@592: 	void OnSourceModAllShutdown();
dvander@592: public: //IUserMessages
dvander@592: 	int GetMessageIndex(const char *msg);
ds@765: 	bool GetMessageName(int msgid, char *buffer, size_t maxlength) const;
dvander@592: 	bool HookUserMessage(int msg_id, IUserMessageListener *pListener, bool intercept=false);
dvander@592: 	bool UnhookUserMessage(int msg_id, IUserMessageListener *pListener, bool intercept=false);
dvander@1690: 	bf_write *StartMessage(int msg_id, const cell_t players[], unsigned int playersNum, int flags);
dvander@592: 	bool EndMessage();
dvander@2636: 	bool HookUserMessage2(int msg_id,
dvander@2636: 		IUserMessageListener *pListener,
dvander@2636: 		bool intercept=false);
dvander@2636: 	bool UnhookUserMessage2(int msg_id,
dvander@2636: 		IUserMessageListener *pListener,
dvander@2636: 		bool intercept=false);
dvander@592: public:
fyrenmoo@2847: #if (SOURCE_ENGINE == SE_LEFT4DEAD) || (SOURCE_ENGINE == SE_LEFT4DEAD2)
ds@2400: 	bf_write *OnStartMessage_Pre(IRecipientFilter *filter, int msg_type, const char *msg_name);
ds@2400: 	bf_write *OnStartMessage_Post(IRecipientFilter *filter, int msg_type, const char *msg_name);
ds@2400: #else
dvander@592: 	bf_write *OnStartMessage_Pre(IRecipientFilter *filter, int msg_type);
dvander@592: 	bf_write *OnStartMessage_Post(IRecipientFilter *filter, int msg_type);
ds@2400: #endif
dvander@592: 	void OnMessageEnd_Pre();
dvander@592: 	void OnMessageEnd_Post();
dvander@592: private:
dvander@2636: 	bool InternalHook(int msg_id, IUserMessageListener *pListener, bool intercept, bool isNew);
dvander@2636: 	bool InternalUnhook(int msg_id, IUserMessageListener *pListener, bool intercept, bool isNew);
faluco@593: 	void _DecRefCounter();
faluco@593: private:
faluco@593: 	List<ListenerInfo *> m_msgHooks[255];
faluco@593: 	List<ListenerInfo *> m_msgIntercepts[255];
faluco@593: 	CStack<ListenerInfo *> m_FreeListeners;
dvander@592: 	unsigned char m_pBase[2500];
dvander@592: 	IRecipientFilter *m_CurRecFilter;
dvander@592: 	bf_write m_InterceptBuffer;
dvander@592: 	bf_write *m_OrigBuffer;
dvander@592: 	bf_read m_ReadBuffer;
dvander@592: 	size_t m_HookCount;
dvander@592: 	bool m_InHook;
faluco@597: 	bool m_BlockEndPost;
ds@765: 	bool m_FallbackSearch;
dvander@592: 
dvander@592: 	Trie *m_Names;
dvander@592: 	CellRecipientFilter m_CellRecFilter;
dvander@592: 	bool m_InExec;
dvander@592: 	int m_CurFlags;
dvander@592: 	int m_CurId;
dvander@592: };
dvander@592: 
dvander@616: extern UserMessages g_UserMsgs;
dvander@592: 
dvander@592: #endif //_INCLUDE_SOURCEMOD_CUSERMESSAGES_H_