[Cocos2d-x]Cocos2d-x 3.2 學習筆記

擷取螢幕大小（Visible）

Size visibleSize = Director::getInstance()->getVisibleSize();Vec2 origin = Director::getInstance()->getVisibleOrigin();

列印調試（CCLOG）

CCLOG("Characters: %c %c", 'a', 65);CCLOG("Decimals: %d %ld", 1977, 650000L);CCLOG("Preceding with blanks: %10d", 1977);CCLOG("Preceding with zeros: %010d", 1977);CCLOG("Some different radixes: %d %x %o %#x %#o", 100, 100, 100, 100, 100);CCLOG("Floats: %4.2f %.0e %E", 3.1416, 3.1416, 3.1416);CCLOG("%s","A string");

建立菜單（Menu Item）

// 建立菜單auto menuItem = MenuItemImage::create( "MenuNormal.png",                                       "MenuSelected.png",                                       CC_CALLBACK_1(HelloWorld::menuCallback, this) );// 設定座標menuItem->setPosition( Vec2(x,y) );// 建立菜單auto menu = Menu::create(menuItem, NULL);menu->setPosition(Vec2::ZERO);this->addChild(menu, 1);

建立標籤（Label）

auto label = LabelTTF::create("Hello World", "Arial", 24);label->setPosition(Vec2(x,y));this->addChild(label, 1);

添加精靈（Sprite）

auto sprite = Sprite::create("Me.jpg");sprite->setPosition(Vec2(visibleSize.width / 2 , visibleSize.height / 2));sprite->setAnchorPoint(Vec2(0.5,0.5));this->addChild(sprite, 0);

精靈動畫（Action）

auto  actionBy = MoveBy::create(1, Point(100,100));auto  easeAction = EaseIn::create(actionBy, 2.5f);sprite->runAction(Repeat::create(easeAction, 5));

添加監聽（Listener）

auto listener1 = EventListenerTouchOneByOne::create();listener1->onTouchBegan = [](Touch* touch, Event* event){    auto target = static_cast<Sprite*>(event->getCurrentTarget());    Point locationInNode = target->convertToNodeSpace(touch->getLocation());    Size s = target->getContentSize();    Rect rect = Rect(0, 0, s.width, s.height);            if (rect.containsPoint(locationInNode))    {        log("sprite began... x = %f, y = %f", locationInNode.x, locationInNode.y);        target->setOpacity(180);        return true;    }    return false;};listener1->onTouchMoved = [](Touch* touch, Event* event){    auto target = static_cast<Sprite*>(event->getCurrentTarget());    target->setPosition(target->getPosition() + touch->getDelta());};listener1->onTouchEnded = [=](Touch* touch, Event* event){    auto target = static_cast<Sprite*>(event->getCurrentTarget());    if (target == sprite)    {        log("Click on the sprite");    }};_eventDispatcher->addEventListenerWithSceneGraphPriority(listener1, sprite);