关于Cocos2d-x中根据分数增加游戏难度的方法

1     //level提升所需的分数
2     enum LevelUp_Score
3     {
4         Level1Up_Score = 5,
5         Level2Up_Score = 10,
6         Level3Up_Score = 15,
7         Level4Up_Score = 20
8     };

 1 //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
 2 void Baby::update(float dt){
 3     //log("wo zai baby update limian1");
 4     m_score=GameScene::sharedGameLayer()->getScore();
 5     //log("wo zai baby update limian2");
 6     //m_score=GameScene::getScore();
 7     //根据到达的分数，设置LEVEL
 8     if (m_score > GameScene::LevelUp_Score::Level1Up_Score && m_score < GameScene::LevelUp_Score::Level2Up_Score)
 9     {
10         //m_level = LEVEL2;
11         setPositionX(getPositionX() - 6);
12     }
13     else if (m_score > GameScene::LevelUp_Score::Level2Up_Score && m_score < GameScene::LevelUp_Score::Level3Up_Score)
14     {
15         //m_level = LEVEL3;
16         setPositionX(getPositionX() - 8);
17     }
18     else if (m_score > GameScene::LevelUp_Score::Level3Up_Score && m_score < GameScene::LevelUp_Score::Level4Up_Score)
19     {
20         //m_level = LEVEL4;
21         setPositionX(getPositionX() - 10);
22     }
23     else if (m_score > GameScene::LevelUp_Score::Level4Up_Score)
24     {
25         //m_level = LEVEL5;
26         setPositionX(getPositionX() - 12);
27     }
28     else
29     {
30         setPositionX(getPositionX() - 6);
31         //setPositionX(getPositionX() - 6);
32     }
33 
34     if (getPositionX()<-this->getContentSize().width) {
35             unscheduleUpdate();
36             removeFromParent();
37         }
38 }