关于Cocos2d-x中根据分数增加游戏难度的方法

1.GameScene.h中声明一些分数边界值

    //level提升所需的分数
    enum LevelUp_Score
    {
        Level1Up_Score = 5,
        Level2Up_Score = 10,
        Level3Up_Score = 15,
        Level4Up_Score = 20
    };

　　

2.在移动的Baby对象类的.cpp文件的update方法中写，每一帧都会执行update方法

　　

//让生成的Baby实例对象不断地往左边移动，超出屏幕就消失，好像有了这个就不用再在Block和Star的定义下面写一个用来消失的update函数了
void Baby::update(float dt){
    //log("wo zai baby update limian1");
    m_score=GameScene::sharedGameLayer()->getScore();
    //log("wo zai baby update limian2");
    //m_score=GameScene::getScore();
    //根据到达的分数，设置LEVEL
    if (m_score > GameScene::LevelUp_Score::Level1Up_Score && m_score < GameScene::LevelUp_Score::Level2Up_Score)
    {
        //m_level = LEVEL2;
        setPositionX(getPositionX() - 6);
    }
    else if (m_score > GameScene::LevelUp_Score::Level2Up_Score && m_score < GameScene::LevelUp_Score::Level3Up_Score)
    {
        //m_level = LEVEL3;
        setPositionX(getPositionX() - 8);
    }
    else if (m_score > GameScene::LevelUp_Score::Level3Up_Score && m_score < GameScene::LevelUp_Score::Level4Up_Score)
    {
        //m_level = LEVEL4;
        setPositionX(getPositionX() - 10);
    }
    else if (m_score > GameScene::LevelUp_Score::Level4Up_Score)
    {
        //m_level = LEVEL5;
        setPositionX(getPositionX() - 12);
    }
    else
    {
        setPositionX(getPositionX() - 6);
        //setPositionX(getPositionX() - 6);
    }

    if (getPositionX()<-this->getContentSize().width) {
            unscheduleUpdate();
            removeFromParent();
        }
}