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cocos2d-x节点（CCActionProgressTimer.h)API

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//进度条

///cocos2d-x-3.0alpha0/cocos2dx/actions
//进度条

#ifndef __ACTION_CCPROGRESS_TIMER_H__
#define __ACTION_CCPROGRESS_TIMER_H__

#include "CCActionInterval.h"

NS_CC_BEGIN

/**
 * @addtogroup actions
 * @{
 */

/**
@brief Progress to percentage   //进度百分比
@since v0.99.1
*/
class CC_DLL ProgressTo : public ActionInterval
{
public:
    /** 使用 duration 、 percent 创建并初始化 */
    static ProgressTo* create(float duration, float fPercent);

    /** 使用 duration 、 percent 初始化 */
    bool initWithDuration(float duration, float fPercent);

    //
    // Overrides
    //
	virtual ProgressTo* clone() const override;
	virtual ProgressTo* reverse(void) const override;
    virtual void startWithTarget(Node *target) override;
    virtual void update(float time) override;

protected:
    float _to;
    float _from;
};

/**
@brief 从一个进度到另一个进度（百分比）
@since v0.99.1
*/
class CC_DLL ProgressFromTo : public ActionInterval
{
public:
    /** Creates and initializes the action with a duration, a "from" percentage and a "to" percentage */
    static ProgressFromTo* create(float duration, float fFromPercentage, float fToPercentage);

    /** Initializes the action with a duration, a "from" percentage and a "to" percentage */
    bool initWithDuration(float duration, float fFromPercentage, float fToPercentage);

    //
    // Overrides
    //
	virtual ProgressFromTo* clone() const override;
	virtual ProgressFromTo* reverse(void) const override;
    virtual void startWithTarget(Node *target) override;
    virtual void update(float time) override;

protected:
    float _to;
    float _from;
};

// end of actions group
/// @}

NS_CC_END

#endif // __ACTION_CCPROGRESS_TIMER_H__