Cocos2d_code fragment(1)

来源：互联网发布：连接阿里云服务器编辑：程序博客网时间：2024/06/05 11:39

等待场景 LoadingScene

LoadingScene.h

typedef enum

{

TargetSceneINVALID = 0,

TargetSceneFirstScene,

TargetSceneOtherScence,

TargetSceneMAX,

}

@interface LoadingScene : CCScene

{

TargetScenes targetScene_;

}

+( id) SceneWithTargetScene : (TargetScenes) targetScene;

-( id) initWithTargetScene : (TargetScenes) targetScene;

@end

LoadingScene.m

+( id) SceneWithTargetScene : (TargetScenes) targetScene

{

return [[self alloc] initWithTargetScene : targetScene ] autorelease];

}

-( id) initWithTargetScene : (TargetScenes) targetScene

{

        if((self = [super init]))
         {
                targetScene_ = targetScene;
              CClabel *label = [CClabel labelWithString:@"Loading ..."
                                                              fontName:@"Marker Felt"
                                                            fontSize:32];
               CGSize size = [[CCDirector shareDirector]winSize];
                  Label.position = CGPointMake (size.width *0.5, size.height * 0.5);
                  [self addChild :label];

                  //下一帧才加载目标场景
                 [self scheduleUpdate];
        }
return self;
}

-(void ) update: (ccTime)delta
{
        [self unscheduleAllSelectors];
        switch (targetScene_)
       {
                 case TargetSceneFirstScene:
                           [[CCDirector sharedDirector] replaceScene:[FirstScene scene]];
                        break;

                 case TargetSceneOtherScene:
                          [[CCDirector sharedDirector] replaceScene:[OtherScene scene]];
                        break;

default:

                          //如果使用没有指定的枚举类型，发出警告
                          NSAssert(nil,@"%@: unsupported TargetScene %i",NSStringFromSelector(_cmd),targetScene_);
                        break;
}