Cocos2d-x 3.2 学习笔记

Cocos2d-x 基础教程

最新推荐文章于 2017-04-21 17:00:00 发布

转载最新推荐文章于 2017-04-21 17:00:00 发布 · 616 阅读

文章标签：

#Cocos2d-x3.2 #学习笔记

本文介绍如何使用 Cocos2d-x 游戏引擎进行游戏开发的基础操作，包括获取屏幕尺寸、创建菜单项、添加精灵及动画、设置触摸监听等。

获取屏幕大小（Visible）

<code class="perl">Size visibleSize = Director::getInstance()->getVisibleSize();
Vec2 origin = Director::getInstance()->getVisibleOrigin();
</code>

打印调试（CCLOG）

<code class="perl">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");
</code>

<code class="cpp">// 创建菜单
auto menuItem = MenuItemImage::create(
"MenuNormal.png",
                                       "MenuSelected.png",
                                       CC_CALLBACK_1(HelloWorld::menuCallback,
this) );
// 设置坐标
menuItem->setPosition( Vec2(x,y) );
// 创建菜单
auto menu = Menu::create(menuItem, NULL);
menu->setPosition(Vec2::ZERO);
this->addChild(menu,
1);
</code>

创建标签（Label）

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

添加精灵（Sprite）

<code class="perl">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);
</code>

精灵动画（Action）

<code class="sql">auto  actionBy = MoveBy::create(1,
 Point(100,100));
auto  easeAction = EaseIn::create(actionBy,
2.5f);
sprite->runAction(Repeat::create(easeAction,
5));
</code>

添加监听（Listener）

<code class="cpp">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);</