每个CCMenuItem的cocos2d

Question

我正在设置一个CCMenu，其中的菜单项如下：

    CCLabelTTF *label1 = [CCLabelTTF labelWithString:@"level 1" fontName:@"Marker Felt" fontSize:32];
    CCLabelTTF *label2 = [CCLabelTTF labelWithString:@"level 2" fontName:@"Marker Felt" fontSize:32];
    CCLabelTTF *label3 = [CCLabelTTF labelWithString:@"level 3" fontName:@"Marker Felt" fontSize:32];
    CCLabelTTF *label4 = [CCLabelTTF labelWithString:@"level 4" fontName:@"Marker Felt" fontSize:32];

    CCMenuItem *level1 = [CCMenuItemLabel itemWithLabel:label1 target:self selector:@selector(levelSelect:)];
    level1.tag = 1;
    CCMenuItem *level2 = [CCMenuItemLabel itemWithLabel:label2 target:self selector:@selector(levelSelect:)];
    level2.tag = 2;
    CCMenuItem *level3 = [CCMenuItemLabel itemWithLabel:label3 target:self selector:@selector(levelSelect:)];
    level3.tag = 3;
    CCMenuItem *level4 = [CCMenuItemLabel itemWithLabel:label4 target:self selector:@selector(levelSelect:)];
    level4.tag = 4;
    CCMenu *menu = [CCMenu menuWithItems:level1, level2, level3, level4, nil];
    [menu alignItemsVerticallyWithPadding:20];

有没有一种方法可以缝合一个for循环来遍历每个CCMenuItem？如果它的标签小于其他值，我想基本上将enabled设置为no。例如：

for (ALL MENU ITEMS) {
    if (THAT MENU ITEM.tag < 4) {
        THAT MENU ITEM.enabled = NO;
    }
}

提前感谢

Answer 1

CCMenuItems被添加为您的CCMenu的子级，所以为了遍历它们，您可以这样做。

for (CCMenuItem *item in [menu children]) {
    if (item.tag < 4) {
        item.enabled = NO;
    }
}