oasisframelistenersystem.h

使用stl技术,(还没看,是听说的)

/******************************************************************************
 * This source file is part of Bad Camel Gaming
 * Copyright (C) 2003  Zephie Greyvenstein
 * See Readme.html for acknowledgements
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *****************************************************************************/

/******************************************************************************
 * FILENAME    : oasisFramelistenerSystem.h
 * DESCRIPTION : Frame listener system class
 * AUTHOR      : Zephie Greyvenstein
 *****************************************************************************/

/// Avoid double inclusion
#ifndef __FRAMELISTENERSYSTEM_H__
#define __FRAMELISTENERSYSTEM_H__

/// Include common stuff
#include "oasisCommon.h"
/// Include the rest of the needed oasis stuff
#include "oasisSystem.h"
#include "oasisSingleton.h"

namespace Oasis {
  /// Forward declare the frame listener system base
  class frameListenerSystemBase;
  
  /// Framelistener system for per-frame events
  class _oasisExport frameListenerSystem : public system,
                              public singleton< frameListenerSystem > {  
  public:
    /// Constructor
    frameListenerSystem( );
    /// Destructor
    virtual ~frameListenerSystem( );    
   
    /// Get singleton
    static frameListenerSystem &get( void );
    /// Get singleton pointer
    static frameListenerSystem *getPtr( void );

    /// Reset this system
    void reset( void );
    /// Update this system
    void update( real time );  
    
    /// Set the time scale
    void setTimeScale( real scale );
    /// Get the time scale
    const real getTimeScale( void ) const;

    /// Add a framelistener
    void addFrameListener( frameListener *newFrameListener );
    /// Remove a framelistener
    void removeFrameListener( frameListener *oldFrameListener );
    
  private: 
    /// Handle to the framelistener system base
    frameListenerSystemBase *base;    
  };
};

#endif