1HEADmaster

1 files changed, 70 insertions, 0 deletions

diff --git a/game/shared/GameEventListener.h b/game/shared/GameEventListener.h
new file mode 100644
index 0000000..d77b809
--- /dev/null
+++ b/game/shared/GameEventListener.h
@@ -0,0 +1,70 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef GAME_EVENT_LISTENER_H
+#define GAME_EVENT_LISTENER_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "igameevents.h"
+extern IGameEventManager2 *gameeventmanager;
+
+// A safer method than inheriting straight from IGameEventListener2.
+// Avoids requiring the user to remove themselves as listeners in 
+// their deconstructor, and sets the serverside variable based on
+// our dll location.
+class CGameEventListener : public IGameEventListener2
+{
+public:
+	CGameEventListener() : m_bRegisteredForEvents(false)
+	{
+	}
+
+	~CGameEventListener()
+	{
+		StopListeningForAllEvents();
+	}
+
+	void ListenForGameEvent( const char *name )
+	{
+		m_bRegisteredForEvents = true;
+
+#ifdef CLIENT_DLL
+		bool bServerSide = false;
+#else
+		bool bServerSide = true;
+#endif
+		if ( gameeventmanager )
+		{
+			gameeventmanager->AddListener( this, name, bServerSide );
+		}
+		
+		AssertMsg1( gameeventmanager, "Failed to subscribe to event %s!", name );
+	}
+
+	void StopListeningForAllEvents()
+	{
+		// remove me from list
+		if ( m_bRegisteredForEvents )
+		{
+			if ( gameeventmanager )
+				gameeventmanager->RemoveListener( this );
+			m_bRegisteredForEvents = false;
+		}
+	}
+
+	// Intentionally abstract
+	virtual void FireGameEvent( IGameEvent *event ) = 0;
+
+private:
+
+	// Have we registered for any events?
+	bool m_bRegisteredForEvents;
+};
+
+#endif