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# OgreFrameListener.h

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    00001 /*
    00002 -----------------------------------------------------------------------------
    00003 This source file is part of OGRE
    00004     (Object-oriented Graphics Rendering Engine)
    00005 For the latest info, see http://www.ogre3d.org/
    00006
    00007 Copyright © 2000-2002 The OGRE Team
    00008 Also see acknowledgements in Readme.html
    00009
    00010 This program is free software; you can redistribute it and/or modify it under
    00011 the terms of the GNU Lesser General Public License as published by the Free Software
    00012 Foundation; either version 2 of the License, or (at your option) any later
    00013 version.
    00014
    00015 This program is distributed in the hope that it will be useful, but WITHOUT
    00016 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    00017 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
    00018
    00019 You should have received a copy of the GNU Lesser General Public License along with
    00020 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
    00021 Place - Suite 330, Boston, MA 02111-1307, USA, or go to
    00022 http://www.gnu.org/copyleft/lesser.txt.
    00023 -----------------------------------------------------------------------------
    00024 */
    00025 #ifndef __FrameListener_H__
    00026 #define __FrameListener_H__
    00027
    00028
    00029 #include "OgrePrerequisites.h"
    00030
    00031 namespace Ogre {
    00032
    00035     struct FrameEvent
    00036     {
    00044         Real timeSinceLastEvent;
    00051         Real timeSinceLastFrame;
    00052     };
    00053
    00054
    00073     class _OgreExport FrameListener
    00074     {
    00075         /*
    00076         Note that this could have been an abstract class, but I made
    00077         the explicit choice not to do this, because I wanted to give
    00078         people the option of only implementing the methods they wanted,
    00079         rather than having to create 'do nothing' implementations for
    00080         those they weren't interested in. As such this class follows
    00081         the 'Adapter' classes in Java rather than pure interfaces.
    00082         */
    00083     public:
    00089         virtual bool frameStarted(const FrameEvent& evt) { return true; }
    00095         virtual bool frameEnded(const FrameEvent& evt) { return true; }
    00096
    00097         virtual ~FrameListener() {}
    00098
    00099     };
    00100 }
    00101
    00102 #endif

Copyright © 2002-2003 by The OGRE Team
Last modified Sun Nov 28 19:48:24 2004