axmol/cocos2dx/layers_scenes_transitions_nodes/CCScene.h

/****************************************************************************
Copyright (c) 2010-2011 cocos2d-x.org
Copyright (c) 2008-2010 Ricardo Quesada
Copyright (c) 2011      Zynga Inc.

http://www.cocos2d-x.org

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#ifndef __CCSCENE_H__
#define __CCSCENE_H__

#include "CCNode.h"

NS_CC_BEGIN

/** @brief CCScene is a subclass of CCNode that is used only as an abstract concept.

CCScene an CCNode are almost identical with the difference that CCScene has it's
anchor point (by default) at the center of the screen.

For the moment CCScene has no other logic than that, but in future releases it might have
additional logic.

It is a good practice to use and CCScene as the parent of all your nodes.
*/
class CC_DLL CCScene : public CCNode
{
public:
    CCScene();
    virtual ~CCScene();
    bool init();
    static CCScene *node(void);
};

NS_CC_END

// for the subclass of CCScene, each has to implement the static "node" method 
#define SCENE_NODE_FUNC(scene) \
static scene* node() \
{ \
    scene *pRet = new scene(); \
    if (pRet && pRet->init()) \
    { \
        pRet->autorelease(); \
        return pRet; \
    } \
    else \
    { \
        delete pRet; \
        pRet = NULL; \
        return NULL; \
    } \
}; 

#define SCENE_FUNC_PARAM(__TYPE__,__PARAMTYPE__,__PARAM__) \
    static cocos2d::CCScene* node(__PARAMTYPE__ __PARAM__) \
    { \
        cocos2d::CCScene * scene = NULL; \
        do  \
        { \
            scene = cocos2d::CCScene::node(); \
            CC_BREAK_IF(! scene); \
            __TYPE__ *layer = __TYPE__::node(__PARAM__); \
            CC_BREAK_IF(! layer); \
            scene->addChild(layer); \
        } while (0); \
        return scene; \
    }


#endif // __CCSCENE_H__