axmol/extensions/CCArmature/animation/CCTween.h

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#ifndef __CCTWEEN_H__
#define __CCTWEEN_H__

#include "CCProcessBase.h"
#include "../utils/CCTweenFunction.h"

namespace cocos2d { namespace extension { namespace armature {

class Bone;
class ArmatureAnimation;

class  Tween : public ProcessBase
{
public:
    /**
     * Create with a Bone
     * @param bone the Bone Tween will bind to
     */
    static Tween *create(Bone *bone);
public:
    Tween(void);
    virtual ~Tween(void);

    /**
     * Init with a Bone
     * @param bone the Bone Tween will bind to
     */
    virtual bool init(Bone *bone);

    /**
     * Start the Process
     *
     * @param  movementBoneData  the MovementBoneData include all frame datas
     * @param  durationTo the frames between two animation changing-over.
     *         It's meaning is changing to this animation need how many frames
     *
     *         -1 : use the value from MovementData get from flash design panel
     * @param  durationTween  the frame count you want to play in the game.
     *         if  _durationTween is 80, then the animation will played 80 frames in a loop
     *
     *         -1 : use the value from MovementData get from flash design panel
     *
     * @param  loop   whether the animation is loop
     *
     *         loop < 0 : use the value from MovementData get from flash design panel
     *         loop = 0 : this animation is not loop
     *         loop > 0 : this animation is loop
     *
     * @param  tweenEasing    tween easing is used for calculate easing effect
     *
     *         TWEEN_EASING_MAX : use the value from MovementData get from flash design panel
     *         -1 : fade out
     *         0  : line
     *         1  : fade in
     *         2  : fade in and out
     *
     */
    virtual void play(MovementBoneData *movementBoneData, int durationTo, int durationTween,  int loop, int tweenEasing);

	inline void setAnimation(ArmatureAnimation *animation) { _animation = animation; }
	inline ArmatureAnimation *getAnimation() const { return _animation; }
protected:

    /**
     * Update(float dt) will call this handler, you can handle your logic here
     */
    virtual void updateHandler();

    /**
     * Calculate which frame arrived, and if current frame have event, then call the event listener
     */
    virtual float updateFrameData(float currentPrecent, bool activeFrame = false);

    /**
     * Calculate the between value of _from and _to, and give it to between frame data
     */
    virtual void setBetween(FrameData *from, FrameData *to);

    /**
     * According to the percent to calculate current FrameData with tween effect
     */
    virtual FrameData *tweenNodeTo(float percent, FrameData *node = NULL);

    /**
     * Update display index and process the key frame event when arrived a key frame
     */
    virtual void arriveKeyFrame(FrameData *keyFrameData);
protected:
    //! A weak reference to the current MovementBoneData. The data is in the data pool
    CC_SYNTHESIZE(MovementBoneData *, _movementBoneData, MovementBoneData)

    FrameData *_tweenData;		//! The computational tween frame data, //! A weak reference to the Bone's tweenData
    FrameData *_from;				//! From frame data, used for calculate between value
    FrameData *_to;				//! To frame data, used for calculate between value
    FrameData *_between;			//! Between frame data, used for calculate current FrameData(_node) value

    FrameData *_currentKeyFrame;	//! A weak reference to the current FrameData. The data is in the data pool

    Bone *_bone;					//! A weak reference to the Bone

    TweenType _frameTweenEasing;	//! Dedermine which tween effect current frame use

    bool _isTweenKeyFrame;

    int betweenDuration;			//! Current key frame will last betweenDuration frames
    int _totalDuration;


    int _fromIndex;				//! The current frame index in FrameList of MovementBoneData, it's different from _frameIndex
    int _toIndex;					//! The next frame index in FrameList of MovementBoneData, it's different from _frameIndex

    ArmatureAnimation *_animation;
};

}}} // namespace cocos2d { namespace extension { namespace armature {

#endif /*__CCTWEEN_H__*/