text: /*
  -----------------------------------------------------------------------------
  This source file is part of OGRE
      (Object-oriented Graphics Rendering Engine)
  For the latest info, see http://www.ogre3d.org/
  
  Copyright (c) 2000-2014 Torus Knot Software Ltd
  
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:
  
  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  THE SOFTWARE.
  -----------------------------------------------------------------------------
  */
  #include "OgreStableHeaders.h"
  #include "OgreAnimation.h"
  #include "OgreKeyFrame.h"
  #include "OgreException.h"
  #include "OgreSkeleton.h"
  #include "OgreBone.h"
  #include "OgreEntity.h"
  #include "OgreSubEntity.h"
  #include "OgreMesh.h"
  #include "OgreSubMesh.h"
  #include "OgreStringConverter.h"
  
  namespace Ogre {
  
      Animation::InterpolationMode Animation::msDefaultInterpolationMode = Animation::IM_LINEAR;
      Animation::RotationInterpolationMode 
          Animation::msDefaultRotationInterpolationMode = Animation::RIM_LINEAR;
      //---------------------------------------------------------------------
      Animation::Animation(const String& name, Real length)
          : mName(name)
          , mLength(length)
          , mInterpolationMode(msDefaultInterpolationMode)
          , mRotationInterpolationMode(msDefaultRotationInterpolationMode)
          , mKeyFrameTimesDirty(false)
  		, mUseBaseKeyFrame(false)
  		, mBaseKeyFrameTime(0.0f)
  		, mBaseKeyFrameAnimationName(StringUtil::BLANK)
  		, mContainer(0)
      {
      }
      //---------------------------------------------------------------------
      Animation::~Animation()
      {
          destroyAllTracks();
      }
      //---------------------------------------------------------------------
      Real Animation::getLength(void) const
      {
          return mLength;
      }
  	//---------------------------------------------------------------------
  	void Animation::setLength(Real len)
  	{
  		mLength = len;
  	}
      //---------------------------------------------------------------------
      NodeAnimationTrack* Animation::createNodeTrack(unsigned short handle)
      {
          if (hasNodeTrack(handle))
          {
              OGRE_EXCEPT(Exception::ERR_DUPLICATE_ITEM, 
                  "Node track with the specified handle " +
                  StringConverter::toString(handle) + " already exists",
                  "Animation::createNodeTrack");
          }
  
          NodeAnimationTrack* ret = OGRE_NEW NodeAnimationTrack(this, handle);
  
          mNodeTrackList[handle] = ret;
          return ret;
      }
      //---------------------------------------------------------------------
      NodeAnimationTrack* Animation::createNodeTrack(unsigned short handle, Node* node)
      {
          NodeAnimationTrack* ret = createNodeTrack(handle);
  
          ret->setAssociatedNode(node);
  
          return ret;
      }
      //---------------------------------------------------------------------
      unsigned short Animation::getNumNodeTracks(void) const
      {
          return (unsigned short)mNodeTrackList.size();
      }
  	//---------------------------------------------------------------------
  	bool Animation::hasNodeTrack(unsigned short handle) const
  	{
  		return (mNodeTrackList.find(handle) != mNodeTrackList.end());
  	}
      //---------------------------------------------------------------------
      NodeAnimationTrack* Animation::getNodeTrack(unsigned short handle) const
      {
          NodeTrackList::const_iterator i = mNodeTrackList.find(handle);
  
          if (i == mNodeTrackList.end())
          {
              OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, 
                  "Cannot find node track with the specified handle " +
                  StringConverter::toString(handle),
                  "Animation::getNodeTrack");
          }
  
          return i->second;
  
      }
      //---------------------------------------------------------------------
      void Animation::destroyNodeTrack(unsigned short handle)
      {
          NodeTrackList::iterator i = mNodeTrackList.find(handle);
  
  		if (i != mNodeTrackList.end())
  		{
  			OGRE_DELETE i->second;
  			mNodeTrackList.erase(i);
              _keyFrameListChanged();
  		}
      }
      //---------------------------------------------------------------------
      void Animation::destroyAllNodeTracks(void)
      {
          NodeTrackList::iterator i;
          for (i = mNodeTrackList.begin(); i != mNodeTrackList.end(); ++i)
          {
              OGRE_DELETE i->second;
          }
          mNodeTrackList.clear();
          _keyFrameListChanged();
      }
  	//---------------------------------------------------------------------
  	NumericAnimationTrack* Animation::createNumericTrack(unsigned short handle)
  	{
          if (hasNumericTrack(handle))
          {
              OGRE_EXCEPT(Exception::ERR_DUPLICATE_ITEM, 
                  "Numeric track with the specified handle " +
                  StringConverter::toString(handle) + " already exists",
                  "Animation::createNumericTrack");
          }
  
  		NumericAnimationTrack* ret = OGRE_NEW NumericAnimationTrack(this, handle);
  
  		mNumericTrackList[handle] = ret;
  		return ret;
  	}
  	//---------------------------------------------------------------------
  	NumericAnimationTrack* Animation::createNumericTrack(unsigned short handle, 
  		const AnimableValuePtr& anim)
  	{
  		NumericAnimationTrack* ret = createNumericTrack(handle);
  
  		ret->setAssociatedAnimable(anim);
  
  		return ret;
  	}
  	//---------------------------------------------------------------------
  	unsigned short Animation::getNumNumericTracks(void) const
  	{
  		return (unsigned short)mNumericTrackList.size();
  	}
  	//---------------------------------------------------------------------
  	bool Animation::hasNumericTrack(unsigned short handle) const
  	{
  		return (mNumericTrackList.find(handle) != mNumericTrackList.end());
  	}
  	//---------------------------------------------------------------------
  	NumericAnimationTrack* Animation::getNumericTrack(unsigned short handle) const
  	{
  		NumericTrackList::const_iterator i = mNumericTrackList.find(handle);
  
  		if (i == mNumericTrackList.end())
  		{
  			OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, 
  				"Cannot find numeric track with the specified handle " +
                  StringConverter::toString(handle),
  				"Animation::getNumericTrack");
  		}
  
  		return i->second;
  
  	}
  	//---------------------------------------------------------------------
  	void Animation::destroyNumericTrack(unsigned short handle)
  	{
  		NumericTrackList::iterator i = mNumericTrackList.find(handle);
  
  		if (i != mNumericTrackList.end())
  		{
  			OGRE_DELETE i->second;
  			mNumericTrackList.erase(i);
              _keyFrameListChanged();
  		}
  	}
  	//---------------------------------------------------------------------
  	void Animation::destroyAllNumericTracks(void)
  	{
  		NumericTrackList::iterator i;
  		for (i = mNumericTrackList.begin(); i != mNumericTrackList.end(); ++i)
  		{
  			OGRE_DELETE i->second;
  		}
  		mNumericTrackList.clear();
          _keyFrameListChanged();
  	}
  	//---------------------------------------------------------------------
  	VertexAnimationTrack* Animation::createVertexTrack(unsigned short handle, 
  		VertexAnimationType animType)
  	{
          if (hasVertexTrack(handle))
          {
              OGRE_EXCEPT(Exception::ERR_DUPLICATE_ITEM, 
                  "Vertex track with the specified handle " +
                  StringConverter::toString(handle) + " already exists",
                  "Animation::createVertexTrack");
          }
  
  		VertexAnimationTrack* ret = OGRE_NEW VertexAnimationTrack(this, handle, animType);
  
  		mVertexTrackList[handle] = ret;
  		return ret;
  
  	}
  	//---------------------------------------------------------------------
  	VertexAnimationTrack* Animation::createVertexTrack(unsigned short handle, 
  		VertexData* data, VertexAnimationType animType)
  	{
  		VertexAnimationTrack* ret = createVertexTrack(handle, animType);
  
  		ret->setAssociatedVertexData(data);
  
  		return ret;
  	}
  	//---------------------------------------------------------------------
  	unsigned short Animation::getNumVertexTracks(void) const
  	{
  		return (unsigned short)mVertexTrackList.size();
  	}
  	//---------------------------------------------------------------------
  	bool Animation::hasVertexTrack(unsigned short handle) const
  	{
  		return (mVertexTrackList.find(handle) != mVertexTrackList.end());
  	}
  	//---------------------------------------------------------------------
  	VertexAnimationTrack* Animation::getVertexTrack(unsigned short handle) const
  	{
  		VertexTrackList::const_iterator i = mVertexTrackList.find(handle);
  
  		if (i == mVertexTrackList.end())
  		{
  			OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, 
  				"Cannot find vertex track with the specified handle " +
                  StringConverter::toString(handle),
  				"Animation::getVertexTrack");
  		}
  
  		return i->second;
  
  	}
  	//---------------------------------------------------------------------
  	void Animation::destroyVertexTrack(unsigned short handle)
  	{
  		VertexTrackList::iterator i = mVertexTrackList.find(handle);
  
  		if (i != mVertexTrackList.end())
  		{
  			OGRE_DELETE  i->second;
  			mVertexTrackList.erase(i);
              _keyFrameListChanged();
  		}
  	}
  	//---------------------------------------------------------------------
  	void Animation::destroyAllVertexTracks(void)
  	{
  		VertexTrackList::iterator i;
  		for (i = mVertexTrackList.begin(); i != mVertexTrackList.end(); ++i)
  		{
  			OGRE_DELETE  i->second;
  		}
  		mVertexTrackList.clear();
          _keyFrameListChanged();
  	}
  	//---------------------------------------------------------------------
  	void Animation::destroyAllTracks(void)
  	{
  		destroyAllNodeTracks();
  		destroyAllNumericTracks();
  		destroyAllVertexTracks();
  	}
      //---------------------------------------------------------------------
      const String& Animation::getName(void) const
      {
          return mName;
      }
      //---------------------------------------------------------------------
  	void Animation::apply(Real timePos, Real weight, Real scale)
      {
  		_applyBaseKeyFrame();
  
          // Calculate time index for fast keyframe search
          TimeIndex timeIndex = _getTimeIndex(timePos);
  
          NodeTrackList::iterator i;
          for (i = mNodeTrackList.begin(); i != mNodeTrackList.end(); ++i)
          {
              i->second->apply(timeIndex, weight, scale);
          }
  		NumericTrackList::iterator j;
  		for (j = mNumericTrackList.begin(); j != mNumericTrackList.end(); ++j)
  		{
  			j->second->apply(timeIndex, weight, scale);
  		}
  		VertexTrackList::iterator k;
  		for (k = mVertexTrackList.begin(); k != mVertexTrackList.end(); ++k)
  		{
  			k->second->apply(timeIndex, weight, scale);
  		}
  
      }
      //---------------------------------------------------------------------
  	void Animation::applyToNode(Node* node, Real timePos, Real weight, Real scale)
      {
  		_applyBaseKeyFrame();
  
          // Calculate time index for fast keyframe search
          TimeIndex timeIndex = _getTimeIndex(timePos);
  
          NodeTrackList::iterator i;
          for (i = mNodeTrackList.begin(); i != mNodeTrackList.end(); ++i)
          {
              i->second->applyToNode(node, timeIndex, weight, scale);
          }
      }
      //---------------------------------------------------------------------
      void Animation::apply(Skeleton* skel, Real timePos, Real weight, 
  		Real scale)
      {
  		_applyBaseKeyFrame();
  
          // Calculate time index for fast keyframe search
          TimeIndex timeIndex = _getTimeIndex(timePos);
  
          NodeTrackList::iterator i;
          for (i = mNodeTrackList.begin(); i != mNodeTrackList.end(); ++i)
          {
              // get bone to apply to 
              Bone* b = skel->getBone(i->first);
              i->second->applyToNode(b, timeIndex, weight, scale);
          }
  
  
      }
      //---------------------------------------------------------------------
      void Animation::apply(Skeleton* skel, Real timePos, float weight,
        const AnimationState::BoneBlendMask* blendMask, Real scale)
      {
  		_applyBaseKeyFrame();
  
  		// Calculate time index for fast keyframe search
        TimeIndex timeIndex = _getTimeIndex(timePos);
  
        NodeTrackList::iterator i;
        for (i = mNodeTrackList.begin(); i != mNodeTrackList.end(); ++i)
        {
          // get bone to apply to 
          Bone* b = skel->getBone(i->first);
  		i->second->applyToNode(b, timeIndex, (*blendMask)[b->getHandle()] * weight, scale);
        }
      }
  	//---------------------------------------------------------------------
  	void Animation::apply(Entity* entity, Real timePos, Real weight, 
  		bool software, bool hardware)
  	{
  		_applyBaseKeyFrame();
  
          // Calculate time index for fast keyframe search
          TimeIndex timeIndex = _getTimeIndex(timePos);
  
  		VertexTrackList::iterator i;
  		for (i = mVertexTrackList.begin(); i != mVertexTrackList.end(); ++i)
  		{
  			unsigned short handle = i->first;
  			VertexAnimationTrack* track = i->second;
  
  			VertexData* swVertexData;
  			VertexData* hwVertexData;
  			if (handle == 0)
  			{
  				// shared vertex data
  				swVertexData = entity->_getSoftwareVertexAnimVertexData();
  				hwVertexData = entity->_getHardwareVertexAnimVertexData();
  				entity->_markBuffersUsedForAnimation();
  			}
  			else
  			{
  				// sub entity vertex data (-1)
  				SubEntity* s = entity->getSubEntity(handle - 1);
  				// Skip this track if subentity is not visible
  				if (!s->isVisible())
  					continue;
  				swVertexData = s->_getSoftwareVertexAnimVertexData();
  				hwVertexData = s->_getHardwareVertexAnimVertexData();
  				s->_markBuffersUsedForAnimation();
  			}
  			// Apply to both hardware and software, if requested
  			if (software)
  			{
  				track->setTargetMode(VertexAnimationTrack::TM_SOFTWARE);
  				track->applyToVertexData(swVertexData, timeIndex, weight, 
  					&(entity->getMesh()->getPoseList()));
  			}
  			if (hardware)
  			{
  				track->setTargetMode(VertexAnimationTrack::TM_HARDWARE);
  				track->applyToVertexData(hwVertexData, timeIndex, weight, 
  					&(entity->getMesh()->getPoseList()));
  			}
  		}
  
  	}
      //---------------------------------------------------------------------
  	void Animation::applyToAnimable(const AnimableValuePtr& anim, Real timePos, Real weight, Real scale)
      {
  		_applyBaseKeyFrame();
  
          // Calculate time index for fast keyframe search
          _getTimeIndex(timePos);
  
  		NumericTrackList::iterator j;
  		for (j = mNumericTrackList.begin(); j != mNumericTrackList.end(); ++j)
  		{
  			j->second->applyToAnimable(anim, timePos, weight, scale);
  		}
     }
      //---------------------------------------------------------------------
  	void Animation::applyToVertexData(VertexData* data, Real timePos, Real weight)
      {
  		_applyBaseKeyFrame();
  		
          // Calculate time index for fast keyframe search
          TimeIndex timeIndex = _getTimeIndex(timePos);
  
  		VertexTrackList::iterator k;
  		for (k = mVertexTrackList.begin(); k != mVertexTrackList.end(); ++k)
  		{
  			k->second->applyToVertexData(data, timeIndex, weight);
  		}
      }
      //---------------------------------------------------------------------
      void Animation::setInterpolationMode(InterpolationMode im)
      {
          mInterpolationMode = im;
      }
      //---------------------------------------------------------------------
      Animation::InterpolationMode Animation::getInterpolationMode(void) const
      {
          return mInterpolationMode;
      }
      //---------------------------------------------------------------------
      void Animation::setDefaultInterpolationMode(InterpolationMode im)
      {
          msDefaultInterpolationMode = im;
      }
      //---------------------------------------------------------------------
      Animation::InterpolationMode Animation::getDefaultInterpolationMode(void)
      {
          return msDefaultInterpolationMode;
      }
      //---------------------------------------------------------------------
      const Animation::NodeTrackList& Animation::_getNodeTrackList(void) const
      {
          return mNodeTrackList;
  
      }
  	//---------------------------------------------------------------------
  	const Animation::NumericTrackList& Animation::_getNumericTrackList(void) const
  	{
  		return mNumericTrackList;
  	}
      //---------------------------------------------------------------------
      const Animation::VertexTrackList& Animation::_getVertexTrackList(void) const
      {
          return mVertexTrackList;
      }
      //---------------------------------------------------------------------
      void Animation::setRotationInterpolationMode(RotationInterpolationMode im)
      {
          mRotationInterpolationMode = im;
      }
      //---------------------------------------------------------------------
      Animation::RotationInterpolationMode Animation::getRotationInterpolationMode(void) const
      {
          return mRotationInterpolationMode;
      }
      //---------------------------------------------------------------------
      void Animation::setDefaultRotationInterpolationMode(RotationInterpolationMode im)
      {
          msDefaultRotationInterpolationMode = im;
      }
      //---------------------------------------------------------------------
      Animation::RotationInterpolationMode Animation::getDefaultRotationInterpolationMode(void)
      {
          return msDefaultRotationInterpolationMode;
      }
      //---------------------------------------------------------------------
  	void Animation::optimise(bool discardIdentityNodeTracks)
  	{
  		optimiseNodeTracks(discardIdentityNodeTracks);
  		optimiseVertexTracks();
  		
  	}
  	//-----------------------------------------------------------------------
      void Animation::_collectIdentityNodeTracks(TrackHandleList& tracks) const
      {
  		NodeTrackList::const_iterator i, iend;
          iend = mNodeTrackList.end();
  		for (i = mNodeTrackList.begin(); i != iend; ++i)
  		{
  			const NodeAnimationTrack* track = i->second;
  			if (track->hasNonZeroKeyFrames())
  			{
                  tracks.erase(i->first);
              }
  		}
      }
  	//-----------------------------------------------------------------------
      void Animation::_destroyNodeTracks(const TrackHandleList& tracks)
      {
          TrackHandleList::const_iterator t, tend;
          tend = tracks.end();
  		for (t = tracks.begin(); t != tend; ++t)
  		{
  			destroyNodeTrack(*t);
  		}
      }
  	//-----------------------------------------------------------------------
  	void Animation::optimiseNodeTracks(bool discardIdentityTracks)
  	{
  		// Iterate over the node tracks and identify those with no useful keyframes
  		list<unsigned short>::type tracksToDestroy;
  		NodeTrackList::iterator i;
  		for (i = mNodeTrackList.begin(); i != mNodeTrackList.end(); ++i)
  		{
  			NodeAnimationTrack* track = i->second;
  			if (discardIdentityTracks && !track->hasNonZeroKeyFrames())
  			{
  				// mark the entire track for destruction
  				tracksToDestroy.push_back(i->first);
  			}
  			else
  			{
  				track->optimise();
  			}
  
  		}
  
  		// Now destroy the tracks we marked for death
  		for(list<unsigned short>::type::iterator h = tracksToDestroy.begin();
  			h != tracksToDestroy.end(); ++h)
  		{
  			destroyNodeTrack(*h);
  		}
  	}
  	//-----------------------------------------------------------------------
  	void Animation::optimiseVertexTracks(void)
  	{
  		// Iterate over the node tracks and identify those with no useful keyframes
  		list<unsigned short>::type tracksToDestroy;
  		VertexTrackList::iterator i;
  		for (i = mVertexTrackList.begin(); i != mVertexTrackList.end(); ++i)
  		{
  			VertexAnimationTrack* track = i->second;
  			if (!track->hasNonZeroKeyFrames())
  			{
  				// mark the entire track for destruction
  				tracksToDestroy.push_back(i->first);
  			}
  			else
  			{
  				track->optimise();
  			}
  
  		}
  
  		// Now destroy the tracks we marked for death
  		for(list<unsigned short>::type::iterator h = tracksToDestroy.begin();
  			h != tracksToDestroy.end(); ++h)
  		{
  			destroyVertexTrack(*h);
  		}
  
  	}
  	//-----------------------------------------------------------------------
  	Animation* Animation::clone(const String& newName) const
  	{
  		Animation* newAnim = OGRE_NEW Animation(newName, mLength);
          newAnim->mInterpolationMode = mInterpolationMode;
          newAnim->mRotationInterpolationMode = mRotationInterpolationMode;
  		
  		// Clone all tracks
  		for (NodeTrackList::const_iterator i = mNodeTrackList.begin();
  			i != mNodeTrackList.end(); ++i)
  		{
  			i->second->_clone(newAnim);
  		}
  		for (NumericTrackList::const_iterator i = mNumericTrackList.begin();
  			i != mNumericTrackList.end(); ++i)
  		{
  			i->second->_clone(newAnim);
  		}
  		for (VertexTrackList::const_iterator i = mVertexTrackList.begin();
  			i != mVertexTrackList.end(); ++i)
  		{
  			i->second->_clone(newAnim);
  		}
  
          newAnim->_keyFrameListChanged();
  		return newAnim;
  
  	}
      //-----------------------------------------------------------------------
      TimeIndex Animation::_getTimeIndex(Real timePos) const
      {
          // Uncomment following statement for work as previous
          //return timePos;
  
          // Build keyframe time list on demand
          if (mKeyFrameTimesDirty)
          {
              buildKeyFrameTimeList();
          }
  
          // Wrap time
          Real totalAnimationLength = mLength;
  
          if( timePos > totalAnimationLength && totalAnimationLength > 0.0f )
  			timePos = fmod( timePos, totalAnimationLength );
  
          // Search for global index
          KeyFrameTimeList::iterator it =
              std::lower_bound(mKeyFrameTimes.begin(), mKeyFrameTimes.end(), timePos);
  
          return TimeIndex(timePos, static_cast<uint>(std::distance(mKeyFrameTimes.begin(), it)));
      }
      //-----------------------------------------------------------------------
      void Animation::buildKeyFrameTimeList(void) const
      {
          NodeTrackList::const_iterator i;
  		NumericTrackList::const_iterator j;
  		VertexTrackList::const_iterator k;
  
          // Clear old keyframe times
          mKeyFrameTimes.clear();
  
          // Collect all keyframe times from each track
          for (i = mNodeTrackList.begin(); i != mNodeTrackList.end(); ++i)
          {
              i->second->_collectKeyFrameTimes(mKeyFrameTimes);
          }
  		for (j = mNumericTrackList.begin(); j != mNumericTrackList.end(); ++j)
  		{
              j->second->_collectKeyFrameTimes(mKeyFrameTimes);
  		}
  		for (k = mVertexTrackList.begin(); k != mVertexTrackList.end(); ++k)
  		{
              k->second->_collectKeyFrameTimes(mKeyFrameTimes);
  		}
  
          // Build global index to local index map for each track
          for (i = mNodeTrackList.begin(); i != mNodeTrackList.end(); ++i)
          {
              i->second->_buildKeyFrameIndexMap(mKeyFrameTimes);
          }
  		for (j = mNumericTrackList.begin(); j != mNumericTrackList.end(); ++j)
  		{
              j->second->_buildKeyFrameIndexMap(mKeyFrameTimes);
  		}
  		for (k = mVertexTrackList.begin(); k != mVertexTrackList.end(); ++k)
  		{
              k->second->_buildKeyFrameIndexMap(mKeyFrameTimes);
  		}
  
          // Reset dirty flag
          mKeyFrameTimesDirty = false;
      }
      //-----------------------------------------------------------------------
  	void Animation::setUseBaseKeyFrame(bool useBaseKeyFrame, Real keyframeTime, const String& baseAnimName)
  	{
  		if (useBaseKeyFrame != mUseBaseKeyFrame ||
  			keyframeTime != mBaseKeyFrameTime ||
  			baseAnimName != mBaseKeyFrameAnimationName)
  		{
  			mUseBaseKeyFrame = useBaseKeyFrame;
  			mBaseKeyFrameTime = keyframeTime;
  			mBaseKeyFrameAnimationName = baseAnimName;
  		}
  	}
      //-----------------------------------------------------------------------
  	bool Animation::getUseBaseKeyFrame() const
  	{
  		return mUseBaseKeyFrame;
  	}
      //-----------------------------------------------------------------------
  	Real Animation::getBaseKeyFrameTime() const
  	{
  		return mBaseKeyFrameTime;
  	}
      //-----------------------------------------------------------------------
  	const String& Animation::getBaseKeyFrameAnimationName() const
  	{
  		return mBaseKeyFrameAnimationName;
  	}
      //-----------------------------------------------------------------------
  	void Animation::_applyBaseKeyFrame()
  	{
  		if (mUseBaseKeyFrame)
  		{
  			Animation* baseAnim = this;
  			if (mBaseKeyFrameAnimationName != StringUtil::BLANK && mContainer)
  				baseAnim = mContainer->getAnimation(mBaseKeyFrameAnimationName);
  			
  			if (baseAnim)
  			{
  				for (NodeTrackList::iterator i = mNodeTrackList.begin(); i != mNodeTrackList.end(); ++i)
  				{
  					NodeAnimationTrack* track = i->second;
  					
  					NodeAnimationTrack* baseTrack;
  					if (baseAnim == this)
  						baseTrack = track;
  					else
  						baseTrack = baseAnim->getNodeTrack(track->getHandle());
  					
  					TransformKeyFrame kf(baseTrack, mBaseKeyFrameTime);
  					baseTrack->getInterpolatedKeyFrame(baseAnim->_getTimeIndex(mBaseKeyFrameTime), &kf);
  					track->_applyBaseKeyFrame(&kf);
  				}
  				
  				for (VertexTrackList::iterator i = mVertexTrackList.begin(); i != mVertexTrackList.end(); ++i)
  				{
  					VertexAnimationTrack* track = i->second;
  					
  					if (track->getAnimationType() == VAT_POSE)
  					{
  						VertexAnimationTrack* baseTrack;
  						if (baseAnim == this)
  							baseTrack = track;
  						else
  							baseTrack = baseAnim->getVertexTrack(track->getHandle());
  						
  						VertexPoseKeyFrame kf(baseTrack, mBaseKeyFrameTime);
  						baseTrack->getInterpolatedKeyFrame(baseAnim->_getTimeIndex(mBaseKeyFrameTime), &kf);
  						track->_applyBaseKeyFrame(&kf);
  						
  					}
  				}
  				
  			}
  			
  			// Re-base has been done, this is a one-way translation
  			mUseBaseKeyFrame = false;
  		}
  		
  	}
      //-----------------------------------------------------------------------
  	void Animation::_notifyContainer(AnimationContainer* c)
  	{
  		mContainer = c;
  	}
  	//-----------------------------------------------------------------------
  	AnimationContainer* Animation::getContainer()
  	{
  		return mContainer;
  	}
  	
  
  }
  
  
  