OgreAnimation.h

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/*
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This source file is part of OGRE
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Copyright (c) 2000-2011 Torus Knot Software Ltd

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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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*/

#ifndef __Animation_H__
#define __Animation_H__

#include "OgrePrerequisites.h"
#include "OgreString.h"
#include "OgreIteratorWrappers.h"
#include "OgreAnimable.h"
#include "OgreAnimationTrack.h"
#include "OgreAnimationState.h"

namespace Ogre {
    class _OgreExport Animation : public AnimationAlloc
    {

    public:
        enum InterpolationMode
        {
            IM_LINEAR,
            IM_SPLINE
        };

        enum RotationInterpolationMode
        {
            RIM_LINEAR,
            RIM_SPHERICAL
        };
        Animation(const String& name, Real length);
        virtual ~Animation();

        const String& getName(void) const;

        Real getLength(void) const;

        void setLength(Real len);

        NodeAnimationTrack* createNodeTrack(unsigned short handle);

        NumericAnimationTrack* createNumericTrack(unsigned short handle);

        VertexAnimationTrack* createVertexTrack(unsigned short handle, VertexAnimationType animType);

        NodeAnimationTrack* createNodeTrack(unsigned short handle, Node* node);

        NumericAnimationTrack* createNumericTrack(unsigned short handle, 
            const AnimableValuePtr& anim);

        VertexAnimationTrack* createVertexTrack(unsigned short handle, 
            VertexData* data, VertexAnimationType animType);

        unsigned short getNumNodeTracks(void) const;

        NodeAnimationTrack* getNodeTrack(unsigned short handle) const;

        bool hasNodeTrack(unsigned short handle) const;

        unsigned short getNumNumericTracks(void) const;

        NumericAnimationTrack* getNumericTrack(unsigned short handle) const;

        bool hasNumericTrack(unsigned short handle) const;

        unsigned short getNumVertexTracks(void) const;

        VertexAnimationTrack* getVertexTrack(unsigned short handle) const;

        bool hasVertexTrack(unsigned short handle) const;
        
        void destroyNodeTrack(unsigned short handle);

        void destroyNumericTrack(unsigned short handle);

        void destroyVertexTrack(unsigned short handle);

        void destroyAllTracks(void);

        void destroyAllNodeTracks(void);
        void destroyAllNumericTracks(void);
        void destroyAllVertexTracks(void);

        void apply(Real timePos, Real weight = 1.0, Real scale = 1.0f);

        void applyToNode(Node* node, Real timePos, Real weight = 1.0, Real scale = 1.0f);

        void apply(Skeleton* skeleton, Real timePos, Real weight = 1.0, Real scale = 1.0f);

        void apply(Skeleton* skeleton, Real timePos, float weight,
          const AnimationState::BoneBlendMask* blendMask, Real scale);

        void apply(Entity* entity, Real timePos, Real weight, bool software, 
            bool hardware);

        void applyToAnimable(const AnimableValuePtr& anim, Real timePos, Real weight = 1.0, Real scale = 1.0f);

        void applyToVertexData(VertexData* data, Real timePos, Real weight = 1.0);

        void setInterpolationMode(InterpolationMode im);

        InterpolationMode getInterpolationMode(void) const;
        void setRotationInterpolationMode(RotationInterpolationMode im);

        RotationInterpolationMode getRotationInterpolationMode(void) const;

        // Methods for setting the defaults
        static void setDefaultInterpolationMode(InterpolationMode im);

        static InterpolationMode getDefaultInterpolationMode(void);

        static void setDefaultRotationInterpolationMode(RotationInterpolationMode im);

        static RotationInterpolationMode getDefaultRotationInterpolationMode(void);

        typedef map<unsigned short, NodeAnimationTrack*>::type NodeTrackList;
        typedef ConstMapIterator<NodeTrackList> NodeTrackIterator;

        typedef map<unsigned short, NumericAnimationTrack*>::type NumericTrackList;
        typedef ConstMapIterator<NumericTrackList> NumericTrackIterator;

        typedef map<unsigned short, VertexAnimationTrack*>::type VertexTrackList;
        typedef ConstMapIterator<VertexTrackList> VertexTrackIterator;

        const NodeTrackList& _getNodeTrackList(void) const;

        NodeTrackIterator getNodeTrackIterator(void) const
        { return NodeTrackIterator(mNodeTrackList.begin(), mNodeTrackList.end()); }
        
        const NumericTrackList& _getNumericTrackList(void) const;

        NumericTrackIterator getNumericTrackIterator(void) const
        { return NumericTrackIterator(mNumericTrackList.begin(), mNumericTrackList.end()); }

        const VertexTrackList& _getVertexTrackList(void) const;

        VertexTrackIterator getVertexTrackIterator(void) const
        { return VertexTrackIterator(mVertexTrackList.begin(), mVertexTrackList.end()); }

        void optimise(bool discardIdentityNodeTracks = true);

        typedef set<ushort>::type TrackHandleList;

        void _collectIdentityNodeTracks(TrackHandleList& tracks) const;

        void _destroyNodeTracks(const TrackHandleList& tracks);

        Animation* clone(const String& newName) const;
        
        void _keyFrameListChanged(void) { mKeyFrameTimesDirty = true; }

        TimeIndex _getTimeIndex(Real timePos) const;

    protected:
        NodeTrackList mNodeTrackList;
        NumericTrackList mNumericTrackList;
        VertexTrackList mVertexTrackList;
        String mName;

        Real mLength;

        InterpolationMode mInterpolationMode;
        RotationInterpolationMode mRotationInterpolationMode;

        static InterpolationMode msDefaultInterpolationMode;
        static RotationInterpolationMode msDefaultRotationInterpolationMode;

        typedef vector<Real>::type KeyFrameTimeList;
        mutable KeyFrameTimeList mKeyFrameTimes;
        mutable bool mKeyFrameTimesDirty;

        void optimiseNodeTracks(bool discardIdentityTracks);
        void optimiseVertexTracks(void);

        void buildKeyFrameTimeList(void) const;
    };

}


#endif