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OgreAnimationTrack.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 
00026 #ifndef __AnimationTrack_H__
00027 #define __AnimationTrack_H__
00028 
00029 #include "OgrePrerequisites.h"
00030 #include "OgreSimpleSpline.h"
00031 #include "OgreRotationalSpline.h"
00032 
00033 namespace Ogre 
00034 {
00050     class _OgreExport AnimationTrack
00051     {
00052     public:
00054         AnimationTrack(Animation* parent);
00056         AnimationTrack(Animation* parent, Node* targetNode);
00057 
00058         virtual ~AnimationTrack();
00059 
00061         unsigned short getNumKeyFrames(void) const;
00062 
00064         KeyFrame* getKeyFrame(unsigned short index) const;
00065 
00087         Real getKeyFramesAtTime(Real timePos, KeyFrame** keyFrame1, KeyFrame** keyFrame2,
00088             unsigned short* firstKeyIndex = 0) const;
00089 
00097         KeyFrame* createKeyFrame(Real timePos);
00098 
00100         void removeKeyFrame(unsigned short index);
00101 
00103         void removeAllKeyFrames(void);
00104 
00105 
00117         KeyFrame getInterpolatedKeyFrame(Real timeIndex) const;
00118 
00127         void apply(Real timePos, Real weight = 1.0, bool accumulate = false);
00128 
00130         Node* getAssociatedNode(void) const;
00131 
00133         void setAssociatedNode(Node* node);
00134 
00136         void applyToNode(Node* node, Real timePos, Real weight = 1.0, bool accumulate = false);
00137 
00138 
00139     protected:
00140         typedef std::vector<KeyFrame*> KeyFrameList;
00141         KeyFrameList mKeyFrames;
00142         Real mMaxKeyFrameTime;
00143         Animation* mParent;
00144         Node* mTargetNode;
00145 
00146         // Flag indicating we need to rebuild the splines next time
00147         void buildInterpolationSplines(void) const;
00148 
00149         // Prebuilt splines, must be mutable since lazy-update in const method
00150         mutable bool mSplineBuildNeeded;
00151         mutable SimpleSpline mPositionSpline;
00152         mutable SimpleSpline mScaleSpline;
00153         mutable RotationalSpline mRotationSpline;
00154       
00155 
00156     };
00157 }
00158 
00159 #endif

Copyright © 2002 by The OGRE Team