Question

我目前正在使用cocos2d开发iphone的纸牌游戏。我目前需要一个标签视图，每个标签代表一个玩家和他/她的一组牌。目前我只有一个代表一个玩家的视图。似乎cocos2d并没有真正构建，确实有多个视图，要做到这一点，它需要对代码进行大量的黑客攻击。什么是最有效的方法来实现这一目标？

你能在这里发现任何明显错误吗？我创建了一个名为PlayerController的新类（来自apps委托） app委托调用场景方法，随后用两个“手”对象填充一个数组并调用initWithPlayerHands（我知道它不应该在这里，但我只想让事情先工作）。我还硬编码moveToPlayerHand指向元素0

-(CCScene *) scene
{
    // 'scene' is an autorelease object.
    CCScene *scene = [CCScene node];
    // 'layer' is an autorelease object.
    PlayerController *layer = [PlayerController node];

    // add layer as a child to scene
    [scene addChild: layer];

    HelloWorldLayer *layer1 = [[HelloWorldLayer alloc] init];
    HelloWorldLayer *layer2 = [[HelloWorldLayer alloc] init];

    allLayers = [[NSMutableArray alloc] initWithCapacity:6];
    [allLayers addObject:layer1];
    [allLayers addObject:layer2];   
    [self initWithPlayerHands:allLayers];

    // return the scene
    return scene;
}

-(id)initWithPlayerHands:(NSMutableArray *)layers
{
    NSMutableArray *allPlayers;

    if ( (self = [super init]) )    
    {
        currentScreen = 1;
        [[CCTouchDispatcher sharedDispatcher] addTargetedDelegate:self priority:-1 swallowsTouches:NO];
        [self setIsTouchEnabled:YES];
        scrollWidth = [[CCDirector sharedDirector] winSize].width;
        scrollHeight = [[CCDirector sharedDirector] winSize].height;
        startWidth = scrollWidth;
        startHeight = scrollHeight;

        allPlayers = [[NSMutableArray array] retain];
        int count = [layers count];
        int i = 0;

        for (CCLayer *l in layers)
        {
            l.anchorPoint = ccp(0,0);
            l.position = ccp((i*scrollWidth),0);
            [self addChild:l ];
            i=i+1;
            count-=1;
        }
        totalScreens = i;       
    }       
    return self;
}

-(void) moveToPlayerHand:(int)hand //this represents the layer you want to move to
{
    float dest = /*((currentScreen-1)*scrollHeight);*/ 0;
    id changeHand = [CCEaseBounce actionWithAction:[CCMoveTo actionWithDuration:0.2 position:ccp(0,dest)]];
    [self runAction:changeHand];
    currentScreen = hand;   
}

Answer 1

我使用cocos2d（具有不同的视图）做了类似的事情。我通过使用容纳2层（或更多层）的scrollIng CCLayer解决了这个问题。此滚动图层是场景的一部分，其上方有另一个控制图层（较高的z）。如果您将不同的玩家手作为滚动图层中的图层然后使用高于具有2个精灵的滚动条的单独图层，或者通过2个按钮告诉滚动图层滚动到哪个内部图层，则可以实现相同的操作。滚动层和控制层可以使用它们都在的共享CCScene进行通信。

对不起，我想我的回答并不完全清楚。这些方法应该放在CCLayer的子类中，因此myScrollerLayer：CCLayer应该是接口。场景应该创建数组，并创建scrolllerLayer将创建的数组传递给它。因此，您可以在场景中引用控制层和scrollerLayer，您可以将消息传递给每个层。

以下是滚动图层的代码，首先应创建代表玩家手的2个图层，然后通过将图层数组传递给它来启动新的滚动图层：

-(id) initWithPlayerHands:(NSMutableArray *)layers
{

    if ( (self = [super init]) )
    {

        // Make sure the layer accepts touches
        [[CCTouchDispatcher sharedDispatcher] addTargetedDelegate:self priority:-1 swallowsTouches:NO];
        [self setIsTouchEnabled:YES];

        // Set up the starting variables
        currentScreen = 1;
        scrollWidth = [[CCDirector sharedDirector] winSize].width;
        scrollHeight = [[CCDirector sharedDirector] winSize].height;
        startWidth = scrollWidth;
        startHeight = scrollHeight;

        allPlayers = [[NSMutableArray array] retain]; //iVar that holds the layers that represent the players hands.
        // Loop through the array and add the screens
        int count = [layers count];
        int i = 0;
        for (CCLayer *l in layers)
        {

            l.anchorPoint = ccp(0,0);
            l.position = ccp((i*scrollWidth),0);
            //Add them with inverse levels so that the touches can pass through all of the board layers (This is something I did special for my project, I don't think you have to)
            [self addChild:l z:count];
            [allLayers addObject:l];
            i=i+1;
            count-=1;

        }

        // Setup a count of the available screens
        totalScreens = i;

    }
    return self;

}

以下是如何转移到球员手中：

-(void) moveToPlayerHand:(int)hand //this represents the layer you want to move to
{

    id changeHand = [CCEaseBounce actionWithAction:[CCMoveTo actionWithDuration:0.3 position:ccp(-((page-1)*scrollWidth),0)]];
    [self runAction:changeHand];
    currentScreen = hand;

}

我希望这能让你走上正轨，如果你想看看这对我有什么影响，你可以查看我个人资料中的链接。页面中间有一个显示滚动的视频。

多播放器的cocos2d选项卡视图

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