source-engine/game/shared/GameEventListener.h
2022-03-01 23:00:42 +03:00

67 lines
1.4 KiB
C++

//========= 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 );
}
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