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OgreController.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://ogre.sourceforge.net/
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 __Controller_H__
00026 #define __Controller_H__
00027 
00028 #include "OgrePrerequisites.h"
00029 
00030 #include "OgreFrameListener.h"
00031 
00032 namespace Ogre {
00033 
00043     class _OgreExport ControllerFunction
00044     {
00045     protected:
00047         bool mDeltaInput;
00048         Real mDeltaCount;
00049 
00052         Real getAdjustedInput(Real input)
00053         {
00054             if (mDeltaInput)
00055             {
00056                 mDeltaCount += input;
00057                 // Wrap
00058                 while (mDeltaCount >= 1.0)
00059                     mDeltaCount -= 1.0;
00060 
00061                 return mDeltaCount;
00062             }
00063             else
00064             {
00065                 return input;
00066             }
00067         }
00068 
00069     public:
00075         ControllerFunction(bool deltaInput)
00076         {
00077             mDeltaInput = deltaInput;
00078             mDeltaCount = 0;
00079         }
00080 
00081         virtual Real calculate(Real sourceValue) = 0;
00082     };
00083 
00084 
00087     class _OgreExport ControllerValue
00088     {
00089 
00090     public:
00091         virtual Real getValue(void) = 0;
00092         virtual void setValue(Real value) = 0;
00093 
00094     };
00095 
00116     class _OgreExport Controller
00117     {
00118     protected:
00120         ControllerValue *mSource;
00122         ControllerValue *mDest;
00124         ControllerFunction* mFunc;
00126         bool mEnabled;
00127 
00128 
00129     public:
00130 
00139         Controller(ControllerValue* src, ControllerValue* dest, ControllerFunction* func);
00140 
00143         virtual ~Controller();
00144 
00145         void setSource(ControllerValue* src);
00146         ControllerValue* getSource(void);
00147         void setDestination(ControllerValue* dest);
00148         ControllerValue* getDestination(void);
00149 
00151         bool getEnabled(void) const;
00153         void setEnabled(bool enabled);
00154 
00155 
00158         void setFunction(ControllerFunction* func);
00159 
00162         ControllerFunction* getFunction(void);
00163 
00164         void update(void);
00165     };
00166 
00167 
00168 }
00169 
00170 #endif

Copyright © 2002 by The OGRE Team