学习笔记

• 获取屏幕大小（Visible）

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  1.<code class="perl">Size visibleSize = Director::getInstance()->getVisibleSize();

  2.Vec2 origin = Director::getInstance()->getVisibleOrigin();

  3.</code>

  打印调试（CCLOG）

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  1.<code class="perl"><code class="perl">CCLOG("Characters: %c %c", 'a', 65);

  2.CCLOG("Decimals: %d %ld", 1977, 650000L);

  3.CCLOG("Preceding with blanks: %10d", 1977);

  4.CCLOG("Preceding with zeros: %010d", 1977);

  5.CCLOG("Some different radixes: %d %x %o %#x %#o", 100, 100, 100, 100, 100);

  6.CCLOG("Floats: %4.2f %.0e %E", 3.1416, 3.1416, 3.1416);

  7.CCLOG("%s","A string");

  8.</code></code>

  创建菜单（Menu Item）

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  01.<code class="perl"><code class="perl"><code class="cpp">// 创建菜单

  02.auto menuItem = MenuItemImage::create( "MenuNormal.png",

  03."MenuSelected.png",

  04.CC_CALLBACK_1(HelloWorld::menuCallback, this) );

  05.// 设置坐标

  06.menuItem->setPosition( Vec2(x,y) );

  07.// 创建菜单

  08.auto menu = Menu::create(menuItem, NULL);

  09.menu->setPosition(Vec2::ZERO);

  10.this->addChild(menu, 1);

  11.</code></code></code>

  创建标签（Label）

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  1.<code class="perl"><code class="perl"><code class="cpp"><code class="perl">auto label = LabelTTF::create("Hello World", "Arial",24);

  2.label->setPosition(Vec2(x,y));

  3.this->addChild(label, 1);

  4.</code></code></code></code>

  添加精灵（Sprite）

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  1.<code class="perl"><code class="perl"><code class="cpp"><code class="perl"><code class="perl">auto sprite = Sprite::create("Me.jpg");

  2.sprite->setPosition(Vec2(visibleSize.width / 2 , visibleSize.height / 2));

  3.sprite->setAnchorPoint(Vec2(0.5,0.5));

  4.this->addChild(sprite, 0);

  5.</code></code></code></code></code>

  精灵动画（Action）

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  1.<code class="perl"><code class="cpp"><code class="perl"><code class="perl"><code class="sql">auto  actionBy = MoveBy::create(1, Point(100,100));

  2.auto  easeAction = EaseIn::create(actionBy, 2.5f);

  3.sprite->runAction(Repeat::create(easeAction, 5));

  4.</code></code></code></code></code>

  添加监听（Listener）

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  01.<code class="perl"><code class="cpp"><code class="perl"><code class="perl"><code class="sql"><code class="cpp">auto listener1 = EventListenerTouchOneByOne::create();

  02. 

  03.listener1->onTouchBegan = [](Touch* touch, Event* event){

  04.auto target = static_cast<Sprite*>(event->getCurrentTarget());

  05.Point locationInNode = target->convertToNodeSpace(touch->getLocation());

  06.Size s = target->getContentSize();

  07.Rect rect = Rect(0, 0, s.width, s.height);

  08.if (rect.containsPoint(locationInNode))

  09.{

  10.log("sprite began... x = %f, y = %f", locationInNode.x, locationInNode.y);

  11.target->setOpacity(180);

  12.return true;

  13.}

  14.return false;

  15.};

  16. 

  17.listener1->onTouchMoved = [](Touch* touch, Event* event){

  18.auto target = static_cast<Sprite*>(event->getCurrentTarget());

  19.target->setPosition(target->getPosition() + touch->getDelta());

  20.};

  21. 

  22.listener1->onTouchEnded = [=](Touch* touch, Event* event){

  23.auto target = static_cast<Sprite*>(event->getCurrentTarget());

  24.if (target == sprite)

  25.{

  26.log("Click on the sprite");

  27.}

  28.};

  29. 

  30._eventDispatcher->addEventListenerWithSceneGraphPriority(listener1, sprite);</code></code></code></code></code></code>