五毛的cocos2d-x学习笔记08-动画

一个例子就够了，单击文本标签，执行动画。我也是小白，写这个demo的时候遇到了问题，单击文本标签游戏就死掉了。今天为了解决这个问题也是一晚没睡，到学习群里问大神，经过大神的指点解决了问题。原来是Animation和Animate的生命周期的关系。先记下。

bool HelloWorld::init()
{
    //////////////////////////////
    // 1. super init first
    if ( !Layer::init() )
    {
        return false;
    }

    SpriteFrameCache *cache = SpriteFrameCache::getInstance();
    cache->addSpriteFramesWithFile("a6.plist");

    Vector<SpriteFrame*> vec;
    char name[15];
    memset(name, 0, 15);

    for (int i = 1; i <=7; i++){
        sprintf(name, "a6_%02d.png", i);
        vec.pushBack(cache->getSpriteFrameByName(name));
    }

    Animation *animation = Animation::createWithSpriteFrames(vec, 0.1f, 1);
    
    Animate *animate = Animate::create(animation);

    auto sprite = Sprite::create();
    addChild(sprite);
    sprite->setPosition(Vec2(200, 200));
    //sprite->runAction(RepeatForever::create(animate));

    auto label = LabelTTF::create("Touch", "Courier", 30);
    label->setPosition(Vec2(500, 500));
    addChild(label);

    int i = 10;

    EventListenerTouchOneByOne *listener = EventListenerTouchOneByOne::create();
    listener->onTouchBegan = [=](Touch *t, Event *e){
    if (label->getBoundingBox().containsPoint(t->getLocation())){
        //notification: pay attention to the life cycle of Animation and Animate
        Animation *animation = Animation::createWithSpriteFrames(vec, 0.1f, 1);
        Animate *animate = Animate::create(animation);
        sprite->runAction(animate);
        log("i=%d", i);
        return true;
    }
    return false;
    };
    //notifation:here is "this" not "label" because if here is "label", Touch *t equals to "label"
    Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraphPriority(listener,this);
    return true;
}

运行效果：