/****************************************************************************
Copyright (c) 2013 cocos2d-x.org

http://www.cocos2d-x.org

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.

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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/


#ifndef __CCTWEEN_H__
#define __CCTWEEN_H__

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

NS_CC_EXT_BEGIN

class CCBone;
class CCArmatureAnimation;
/**
*   @js  NA
*   @lua NA
*/
class  CCTween : public CCProcessBase
{
public:
    /**
     * Create with a CCBone
     * @param bone the CCBone CCTween will bind to
     */
    static CCTween *create(CCBone *bone);
public:
    CCTween(void);
    virtual ~CCTween(void);

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

    using CCProcessBase::play;
    /**
     * Start the Process
     *
     * @param  movementBoneData  the CCMovementBoneData include all CCFrameData
     * @param  durationTo the number of frames changing to this animation needs.
     * @param  durationTween  the number of frames this animation actual last.
     *
     * @param  loop   whether the animation is loop
     *
     *         loop < 0 : use the value from CCMovementData get from Action Editor
     *         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 CCMovementData get from Action Editor
     *         -1 : fade out
     *         0  : line
     *         1  : fade in
     *         2  : fade in and out
     *
     */
    virtual void play(CCMovementBoneData *movementBoneData, int durationTo, int durationTween,  int loop, int tweenEasing);

    virtual void gotoAndPlay(int frameIndex);
    virtual void gotoAndPause(int frameIndex);

    inline void setAnimation(CCArmatureAnimation *animation) { m_pAnimation = animation; }
    inline CCArmatureAnimation *getAnimation() const { return m_pAnimation; }
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 currentPercent);

    /**
     * Calculate the between value of _from and _to, and give it to between frame data
     */
    virtual void setBetween(CCFrameData *from, CCFrameData *to, bool limit = true);

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

    /**
     * According to the percent to calculate current color with tween effect
     */
    virtual void tweenColorTo(float percent, CCFrameData *node);

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

    CCFrameData *m_pTweenData;		//! The computational tween frame data, //! A weak reference to the CCBone's tweenData
    CCFrameData *m_pFrom;				//! From frame data, used for calculate between value
    CCFrameData *m_pTo;				//! To frame data, used for calculate between value
    CCFrameData *m_pBetween;			//! Between frame data, used for calculate current CCFrameData(m_pNode) value


    CCBone *m_pBone;					//! A weak reference to the CCBone

    CCTweenType m_eFrameTweenEasing;	//! Dedermine which tween effect current frame use

    int m_iBetweenDuration;			//! Current key frame will last m_iBetweenDuration frames
    int m_iTotalDuration;


    int m_iFromIndex;				//! The current frame index in FrameList of CCMovementBoneData, it's different from m_iFrameIndex
    int m_iToIndex;					//! The next frame index in FrameList of CCMovementBoneData, it's different from m_iFrameIndex

    CCArmatureAnimation *m_pAnimation;

    bool m_bPassLastFrame;
};

NS_CC_EXT_END

#endif /*__CCTWEEN_H__*/