oasisframelistenersystembase.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    : oasisFramelistenerSystemBase.h
 * DESCRIPTION : Real framelistener system class
 * AUTHOR      : Zephie Greyvenstein
 *****************************************************************************/

/// Avoid double inclusion
#ifndef __FRAMELISTENERSYSTEMBASE_H__
#define __FRAMELISTENERSYSTEMBASE_H__

/// Include the common headers
#include "oasisCommon.h"

/// Include Ogre stuff
#include "OgreFrameListener.h"

namespace Oasis {
  /// Real frame listener system class
  class frameListenerSystemBase : public Ogre::FrameListener {  
  public:
    /// Constructor
    frameListenerSystemBase( );
    /// Destructor
    virtual ~frameListenerSystemBase( );
    
    /// 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: 
    /// Speed scale
    real timeScale;
   
    /// Set of frame listeners
    typedef std::set< frameListener* > frameListenerSet;

    /// All the frame listeners that are registered
    frameListenerSet listeners;
    
    /// We override the frameStarted function to control the system
    bool frameStarted( const Ogre::FrameEvent &evt );
    /// We override the frameEnded function to control the system
    bool frameEnded( const Ogre::FrameEvent &evt );
  };
};

#endif