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engine/LocalNetworkBackdoor.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#ifndef LOCALNETWORKBACKDOOR_H
+#define LOCALNETWORKBACKDOOR_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "quakedef.h"
+#include "cl_localnetworkbackdoor.h"
+#include "icliententitylist.h"
+#include "LocalNetworkBackdoor.h"
+#include "iclientnetworkable.h"
+#include "basehandle.h"
+#include "client_class.h"
+#include "dt_localtransfer.h"
+#include "client.h"
+#include "cdll_engine_int.h"
+#include "datacache/imdlcache.h"
+#include "sys_dll.h"
+#include "utllinkedlist.h"
+#include "edict.h"
+#include "server.h"
+
+
+class SendTable;
+
+class CLocalNetworkBackdoor
+{
+public:
+	
+	void StartEntityStateUpdate();
+	void EndEntityStateUpdate();
+
+	void EntityDormant( int iEnt, int iSerialNum );
+	void AddToPendingDormantEntityList( unsigned short iEdict );
+	void ProcessDormantEntities();
+
+	void NotifyEdictFlagsChange( int iEdict )
+	{
+		// If they newly added the dontsend flag, then we need to run it through EntityDormant.
+		if ( sv.edicts[iEdict].m_fStateFlags & FL_EDICT_DONTSEND )
+			AddToPendingDormantEntityList( iEdict );
+	}
+
+	
+	void EntState( 
+		int iEnt, 
+		int iSerialNum, 
+		int iClass, 
+		const SendTable *pSendTable, 
+		const void *pSourceEnt,
+		bool bChanged,
+		bool bShouldTransmit );
+
+	void ClearState();
+	void StartBackdoorMode();
+	void StopBackdoorMode();
+
+	
+	// This is called when the client DLL is loaded to precalculate data to let it copy data faster.
+	static void InitFastCopy();
+
+
+private:
+	// Temporarily built up while processing a frame.
+	CBitVec<MAX_EDICTS> m_EntsAlive;
+	
+	// This should correspond to which m_CachedEntState entries have a non-null m_pNetworkable pointer.
+	CBitVec<MAX_EDICTS> m_PrevEntsAlive;
+
+	// Entities that get created during a frame are remembered here.
+	unsigned short m_EntsCreatedIndices[MAX_EDICTS];
+	int m_nEntsCreated;
+
+	// Entities that changed but weren't created go here.	
+	unsigned short m_EntsChangedIndices[MAX_EDICTS];
+	int m_nEntsChanged;
+
+	// Tell the client DLL about entities that need to be notified about being dormant.
+	// Anything that EntityDormant() would care about needs to get added to this list.
+	CUtlLinkedList<unsigned short,unsigned short> m_PendingDormantEntities;
+
+	// This data is cached in here so we don't have to call a lot of virtuals to get it from the client DLL.
+	class CCachedEntState
+	{
+	public:
+		CCachedEntState()
+		{
+			m_iSerialNumber = -1;
+		}
+
+		bool	m_bDormant;
+		int		m_iSerialNumber;
+		void	*m_pDataPointer;
+		IClientNetworkable *m_pNetworkable;
+	};
+	
+	CCachedEntState 	m_CachedEntState[MAX_EDICTS];
+};
+
+
+// The client will set this if it decides to use the fast path.
+extern CLocalNetworkBackdoor *g_pLocalNetworkBackdoor;
+
+
+#endif // LOCALNETWORKBACKDOOR_H