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 (c) 2000-2006 Torus Knot Software Ltd 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 You may alternatively use this source under the terms of a specific version of 00025 the OGRE Unrestricted License provided you have obtained such a license from 00026 Torus Knot Software Ltd. 00027 ----------------------------------------------------------------------------- 00028 */ 00029 #ifndef __Controller_H__ 00030 #define __Controller_H__ 00031 00032 #include "OgrePrerequisites.h" 00033 00034 #include "OgreSharedPtr.h" 00035 00036 namespace Ogre { 00037 00038 00039 00040 00050 template <typename T> 00051 class ControllerFunction : public ControllerAlloc 00052 { 00053 protected: 00055 bool mDeltaInput; 00056 T mDeltaCount; 00057 00060 T getAdjustedInput(T input) 00061 { 00062 if (mDeltaInput) 00063 { 00064 mDeltaCount += input; 00065 // Wrap 00066 while (mDeltaCount >= 1.0) 00067 mDeltaCount -= 1.0; 00068 while (mDeltaCount < 0.0) 00069 mDeltaCount += 1.0; 00070 00071 return mDeltaCount; 00072 } 00073 else 00074 { 00075 return input; 00076 } 00077 } 00078 00079 public: 00085 ControllerFunction(bool deltaInput) 00086 { 00087 mDeltaInput = deltaInput; 00088 mDeltaCount = 0; 00089 } 00090 00091 virtual ~ControllerFunction() {} 00092 00093 virtual T calculate(T sourceValue) = 0; 00094 }; 00095 00096 00099 template <typename T> 00100 class ControllerValue : public ControllerAlloc 00101 { 00102 00103 public: 00104 virtual ~ControllerValue() { } 00105 virtual T getValue(void) const = 0; 00106 virtual void setValue(T value) = 0; 00107 00108 }; 00109 00130 template <typename T> 00131 class Controller : public ControllerAlloc 00132 { 00133 protected: 00135 SharedPtr< ControllerValue<T> > mSource; 00137 SharedPtr< ControllerValue<T> > mDest; 00139 SharedPtr< ControllerFunction<T> > mFunc; 00141 bool mEnabled; 00142 00143 00144 public: 00145 00151 Controller(const SharedPtr< ControllerValue<T> >& src, 00152 const SharedPtr< ControllerValue<T> >& dest, const SharedPtr< ControllerFunction<T> >& func) 00153 : mSource(src), mDest(dest), mFunc(func) 00154 { 00155 mEnabled = true; 00156 } 00157 00160 virtual ~Controller() {} 00161 00162 00164 void setSource(const SharedPtr< ControllerValue<T> >& src) 00165 { 00166 mSource = src; 00167 } 00169 const SharedPtr< ControllerValue<T> >& getSource(void) const 00170 { 00171 return mSource; 00172 } 00174 void setDestination(const SharedPtr< ControllerValue<T> >& dest) 00175 { 00176 mDest = dest; 00177 } 00178 00180 const SharedPtr< ControllerValue<T> >& getDestination(void) const 00181 { 00182 return mDest; 00183 } 00184 00186 bool getEnabled(void) const 00187 { 00188 return mEnabled; 00189 } 00190 00192 void setEnabled(bool enabled) 00193 { 00194 mEnabled = enabled; 00195 } 00196 00199 void setFunction(const SharedPtr< ControllerFunction<T> >& func) 00200 { 00201 mFunc = func; 00202 } 00203 00206 const SharedPtr< ControllerFunction<T> >& getFunction(void) const 00207 { 00208 return mFunc; 00209 } 00210 00216 void update(void) 00217 { 00218 if(mEnabled) 00219 mDest->setValue(mFunc->calculate(mSource->getValue())); 00220 } 00221 00222 }; 00223 00224 00225 } 00226 00227 #endif
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Last modified Sun Sep 27 22:02:22 2009