CCTransitionPageTurn（场景切换特效之 ---翻页）

#ifndef __CCPAGE_TURN_TRANSITION_H__

#define __CCPAGE_TURN_TRANSITION_H__

#include "CCTransition.h"

NS_CC_BEGIN

/**

 * @addtogroup transition

 * @{

 */

/**

@brief A transition which peels back the bottom right hand corner of a scene

to transition to the scene beneath it simulating a page turn.

This uses a 3DAction so it's strongly recommended that depth buffering

is turned on in CCDirector using:

 CCDirector::sharedDirector()->setDepthBufferFormat(kDepthBuffer16);

 @since v0.8.2

*/

class CC_DLL CCTransitionPageTurn : public CCTransitionScene

{

protected:

    bool    m_bBack;

    

public:

    CCTransitionPageTurn();

    virtual ~CCTransitionPageTurn();

    /**

    * Creates a base transition with duration and incoming scene.

    * If back is true then the effect is reversed to appear as if the incoming 

    * scene is being turned from left over the outgoing scene.

    */

    static CCTransitionPageTurn* create(float t,CCScene* scene,bool backwards);

    /**

    * Creates a base transition with duration and incoming scene.

    * If back is true then the effect is reversed to appear as if the incoming 

    * scene is being turned from left over the outgoing scene.

    */

    virtual bool initWithDuration(float t,CCScene* scene,bool backwards);

    CCActionInterval* actionWithSize(const CCSize& vector);

    virtual void onEnter();

{

    CCTransitionScene::onEnter();

    CCSize s = CCDirector::sharedDirector()->getWinSize();

    int x,y;

    if (s.width > s.height)

    {

        x=16;

        y=12;

    }

    else

    {

        x=12;

        y=16;

    }

    CCActionInterval *action  = this->actionWithSize(CCSizeMake(x,y));

    if (! m_bBack )

    {

        m_pOutScene->runAction

        (

            CCSequence::create

            (

                action,

                CCCallFunc::create(this, callfunc_selector(CCTransitionScene::finish)),

                CCStopGrid::create(),

                NULL

            )

        );

    }

    else

    {

        // to prevent initial flicker

        m_pInScene->setVisible(false);

        m_pInScene->runAction

        (

            CCSequence::create

            (

                CCShow::create(),

                action,

                CCCallFunc::create(this, callfunc_selector(CCTransitionScene::finish)),

                CCStopGrid::create(),

                NULL

            )

        );

    }

}

protected:

    virtual void sceneOrder();

};

// end of transition group

/// @}

NS_CC_END

#endif // __CCPAGE_TURN_TRANSITION_H__