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game/shared/usermessages.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#ifndef USERMESSAGES_H
+#define USERMESSAGES_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include <utldict.h>
+#include <utlvector.h>
+#include <bitbuf.h>
+
+
+// Client dispatch function for usermessages
+typedef void (*pfnUserMsgHook)(bf_read &msg);
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+class CUserMessage
+{
+	public:
+		// byte size of message, or -1 for variable sized
+		int				size;	
+		const char		*name;
+		// Client only dispatch function for message
+		CUtlVector<pfnUserMsgHook>	clienthooks;
+};
+
+//-----------------------------------------------------------------------------
+// Purpose: Interface for registering and dispatching usermessages
+// Shred code creates same ordered list on client/server
+//-----------------------------------------------------------------------------
+class CUserMessages
+{
+public:
+	
+	CUserMessages();
+	~CUserMessages();
+	
+	// Returns -1 if not found, otherwise, returns appropriate index
+	int		LookupUserMessage( const char *name );
+	int		GetUserMessageSize( int index );
+	const char *GetUserMessageName( int index );
+	bool	IsValidIndex( int index );
+
+	// Server only
+	void	Register( const char *name, int size );
+
+	// Client only
+	void	HookMessage( const char *name, pfnUserMsgHook hook );
+	bool	DispatchUserMessage( int msg_type, bf_read &msg_data );
+
+private:
+
+	CUtlDict< CUserMessage*, int >	m_UserMessages;
+};
+
+extern CUserMessages *usermessages;
+
+#endif // USERMESSAGES_H