Cocos2d JS 之消灭星星(三) 进入游戏过渡场景

 1 /*

 2  * 游戏过渡场景,主要作用是在每次进入游戏或者进入下一关卡时进行过渡,显示当前的关卡以及通过该关卡要达到的分数;

 3  */

 4 var TransitionScene = ccui.Layout.extend(

 5 {

 6     size:null,

 7     ctor:function(isNewGame)

 8     {

 9         this._super();

10         this.isNewGame = isNewGame;

11         this.zinit();

12         this.setLabel();

13         this.gotoGameMainScene();

14     },

15     //设置显示文本(当前关卡数,通过关卡分数)

16     setLabel:function()

17     {

18         //当前进入关卡

19         var currentLevel = new myText("level "+this.levelNumber.toString(),white, 20);

20         currentLevel.x = this.size.width - currentLevel.width >> 1;//居中

21         currentLevel.y = 500;

22         this.addChild(currentLevel, 1);

23         

24         var targetTxt = new myText("target score is", white, 20);

25         targetTxt.x = this.size.width - targetTxt.width >> 1;

26         targetTxt.y = currentLevel.y - targetTxt.height - 10;

27         this.addChild(targetTxt, 1);

28         //通关分数

29         var targetScore = new myText(this.standardScore.toString(), white, 20);

30         targetScore.x = this.size.width - targetScore.width >> 1;

31         targetScore.y = targetTxt.y - targetScore.height - 10;

32         this.addChild(targetScore, 1);

33     },

34     //进入游戏主场景

35     gotoGameMainScene:function()

36     {

37         //两秒后进入游戏主界面

38         this.scheduleOnce(function()

39         {

40             var gMainScene = GameMainScene.createScene();

41             cc.director.runScene(cc.TransitionFade.create(1, gMainScene));

42         }, 2);

43     },

44     //初始化

45     zinit:function()

46     {

47         //设置布局大小

48         this.size = cc.size(480, 800);

49         this.setSize(this.size);

50         //实例化背景图片

51         var backGround = new myImage(res.mainbacktop);

52         backGround.y = this.size.height - backGround.height;

53         this.addChild(backGround, 0);

54         var backGround1 = new myImage(res.mainbackbottom);

55         this.addChild(backGround1, 0);

56         

57         //初始化玩家信息

58         if(this.isNewGame == true)

59         {

60             PlayerLocalData.deleteItem();

61         }

62         this.playerGameData = PlayerLocalData.getItem();

63         //这里要注意,第一次进入游戏时,this.playerGameData是一个数组,之后就变成对象了,这里确保游戏中统一用对象

64         if(this.playerGameData.length == true)

65         {

66             this.playerGameData = this.playerGameData[0];

67         }

68         else

69         {

70             this.playerGameData = this.playerGameData;

71         }

72         this.levelNumber = this.playerGameData.currentLevel;//当前关卡数字

73         //获得当前关卡的目标分数

74         for(var i = 0; i < levelData.length; i++)

75         {

76             if(this.levelNumber == levelData[i].level)

77             {

78                 this.standardScore = levelData[i].standards;

79                 break;

80             }

81         }

82     }

83 });

84 //实例化场景

85 TransitionScene.createScene = function(isNewGame)

86 {

87     var tScene = cc.Scene.create();

88     var tLayout = new TransitionScene(isNewGame);

89     tScene.addChild(tLayout);

90     return tScene;

91 };

 

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