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我是Cocos2d-x的新手，我正在使用數組來保存圖層上的字符精靈列表。未裝入數組 - 「索引超出objectAtIndex（）範圍」
characterArr = CCArray::createWithCapacity(NUMBER_CHARACTERS/NUMBER_CHARACTERS_PER_SCENE);
for (int i = 1; i <= NUMBER_CHARACTERS/NUMBER_CHARACTERS_PER_SCENE; ++i)
{
CCLayer* characterLayer = CCLayer::create();
for (int j = 1; j <= NUMBER_CHARACTERS_PER_SCENE; ++j)
{
int characterID = j + NUMBER_CHARACTERS_PER_SCENE*(i - 1);
CCString* characterName = (CCString::createWithFormat("ChooseCharacterScene/c%i.png", characterID));
CCSprite* character = CCSprite::create(characterName->getCString());
CCMenuItemSprite* characterItem = CCMenuItemSprite::create(character,
character,
this,
menu_selector(ChooseCharacterScene::CharacterTouched));enter code here`
characterItem->setTag(characterID);
CCMenu* menu = CCMenu::create(characterItem, NULL);
characterLayer->addChild(menu, GR_FOREGROUND);
characterArr->addObject(characterLayer);
然後在menu_selector功能，我使用功能objectAtIndex（）函數來得到層的哪個球員感動的指數，但是當我測試，有時它的工作，有時，字符數組是空的。任何人都可以幫我解決這個問題嗎？謝謝。
int layerIndex = characterTouchedID/NUMBER_CHARACTERS_PER_SCENE;
if (characterTouchedID % NUMBER_CHARACTERS_PER_SCENE == 0) {
layerIndex--;
}
((CCLayer*)characterArr->objectAtIndex(layerIndex))->addChild(character, GR_MIDDLEGROUND);