cocos代码研究（1）sprite学习笔记

    //图片创建法 参数一：图片资源路径 参数二：Rect选区
    auto sprite = Sprite::create("Images/grossini_dance_atlas.png", Rect(x, y, 85, 121));
    addChild(sprite);

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    //BatchNode类纹理创建法 
    //参数一：纹理图片 参数二：容量（子节点数量上限）
    auto batchNode = SpriteBatchNode::create("Images/grossini_dance_atlas.png", 50);
    //参数一：获取纹理 参数二：Rect选区
    auto sprite = Sprite::createWithTexture(batchNode->getTexture(), Rect(x, y, 85, 121));
    batchNode->addChild(sprite);
    addChild(batchNode);

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    //精灵帧缓存SpriteFrameCache创建法 
    SpriteFrameCache::getInstance()->addSpriteFramesWithFile("animations/ghosts.plist", "animations/ghosts.png");
    auto sprite = Sprite::createWithSpriteFrameName("father.gif");
    addChild(sprite);

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    //BatchNode + SpriteFrameCache + Sprite 组合使用
    SpriteFrameCache::getInstance()->addSpriteFramesWithFile("animations/ghosts.plist", "animations/ghosts.png");
    auto batchNode = SpriteBatchNode::create("animations/ghosts.png");
    auto sprite = Sprite::createWithSpriteFrameName("father.gif");
    batchNode->addChild(sprite);
    addChild(batchNode);

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    //纹理创建法
    auto texture = Director::getInstance()->getTextureCache()->addImage("animations/dragon_animation.png");
    auto frame = SpriteFrame::createWithTexture(texture, Rect(132 * 0, 132 * 0, 132, 132));
    auto sprite = Sprite::createWithSpriteFrame(frame);

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    //SpriteFrameCache创建动画法
    auto cache = SpriteFrameCache::getInstance();
    cache->addSpriteFramesWithFile("animations/grossini-aliases.plist", "animations/grossini-aliases.png");
    auto sprite = Sprite::createWithSpriteFrameName("grossini_dance_01.png");
    
    Vector<SpriteFrame*> animFrames(15);
    char str[100] = { 0 };
    for (int i = 1; i < 15; i++)
    {
        sprintf(str, "grossini_dance_%02d.png", i);
        auto frame = cache->getSpriteFrameByName(str);
        animFrames.pushBack(frame);
    }

    auto animation = Animation::createWithSpriteFrames(animFrames, 0.3f);
    sprite->runAction(RepeatForever::create(Animate::create(animation)));

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    //AnimationCache加载animation创建动画法
    auto animationCache = AnimationCache::getInstance();
    auto animation = Animation::createWithSpriteFrames(animFrames, 0.2f);
    //参数一:animation  参数二：绑定别名
    animationCache->addAnimation(animation, "dance_blue");
    auto dance_blue = animationCache->getAnimation("dance_blue");

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    //AnimationCache加载plist文件创建动画法
    auto frameCache = SpriteFrameCache::getInstance();
    frameCache->addSpriteFramesWithFile("animations/grossini.plist");
    auto animationCache = AnimationCache::getInstance();
    animationCache->addAnimationsWithFile("animations/animations.plist");
    auto normal = animationCache->getAnimation("dance_1");

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    //动态加载纹理方法
    std::string plist_content;  //plist文件数据
    {
        std::string fullPath = FileUtils::getInstance()->fullPathForFilename("animations/grossini.plist");
        Data data = FileUtils::getInstance()->getDataFromFile(fullPath);
        if (!data.isNull())
            plist_content.assign((const char*)data.getBytes(), data.getSize());
    }
    std::string image_content; //图片文件数据
    {
        std::string fullPath = FileUtils::getInstance()->fullPathForFilename("animations/grossini.png");
        Data data = FileUtils::getInstance()->getDataFromFile(fullPath);
        if (!data.isNull())
            image_content.assign((const char*)data.getBytes(), data.getSize());
    }
    Image image;
    image.initWithImageData((const uint8_t*)image_content.c_str(), image_content.size());
    Texture2D* texture = new (std::nothrow) Texture2D();
    texture->initWithImage(&image);
    texture->autorelease();

    auto cache = SpriteFrameCache::getInstance();
    cache->addSpriteFramesWithFileContent(plist_content, texture);