cocos2d-x 卡牌翻牌效果的实现

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原文地址: http://www.cocos2dev.com/?p=428

刚有人问我cocos2dx能否实现卡牌的翻牌效果，其实cocos2dx有个action就是这个效果，晚上随便写了个效果。需要的可以看看。



上面的效果图是ipad模拟器，所以帧率只有30，实际是60.

这个能实现翻牌的action就是CCOrbitCamera。

static CCOrbitCamera* create(float t, float radius, float deltaRadius, float angleZ, float deltaAngleZ, float angleX, float deltaAngleX);

参数分别为旋转的时间，起始半径，半径差，起始z角，旋转z角差，起始x角，旋转x角差

下面是我封装的cardSprite，

请自己加入自己的工程，

用法：

//创建翻牌sprite, 参数：卡片里面的图，卡片的封面，翻牌所花时间

CardSprite* card = CardSprite::create("1.png", "2.png", 2);

card->setPosition(ccp(size.width * .5, size.height * .5));

addChild(card);

card->openCard();//开始翻牌

CardSprite.h

//
//  CardSprite.h
//  Cocos2dev.com
//
//  Created by LiuYanghui on 13-6-17.
//
//

#ifndef __Test__CardSprite__
#define __Test__CardSprite__

#include "cocos2d.h"
USING_NS_CC;

class CardSprite : public CCSprite
{
public:
CardSprite();
~CardSprite();
static CardSprite* create(const char* inCardImageName, const char* outCardImageName, float duration);
virtual bool init(const char* inCardImageName, const char* outCardImageName, float duration);

private:
bool m_isOpened;
CCActionInterval* m_openAnimIn;
CCActionInterval* m_openAnimOut;

void initData(const char* inCardImageName, const char* outCardImageName, float duration);

public:
void openCard();
};

#endif /* defined(__Test__CardSprite__) */

CardSprite.cpp

//
//  CardSprite.cpp
//  Cocos2dev.com
//
//  Created by LiuYanghui on 13-6-17.
//
//

#include "CardSprite.h"

#define kInAngleZ        270 //里面卡牌的起始Z轴角度
#define kInDeltaZ        90  //里面卡牌旋转的Z轴角度差

#define kOutAngleZ       0   //封面卡牌的起始Z轴角度
#define kOutDeltaZ       90  //封面卡牌旋转的Z轴角度差

enum {
tag_inCard = 1,
tag_outCard
};

CardSprite::CardSprite()
{

}

CardSprite::~CardSprite()
{
m_openAnimIn->release();
m_openAnimOut->release();
}

CardSprite* CardSprite::create(const char* inCardImageName, const char* outCardImageName, float duration)
{
CardSprite *pSprite = new CardSprite();
if (pSprite && pSprite->init(inCardImageName, outCardImageName, duration))
{
pSprite->autorelease();
return pSprite;
}
CC_SAFE_DELETE(pSprite);
return NULL;
}

bool CardSprite::init(const char* inCardImageName, const char* outCardImageName, float duration)
{
if (!CCSprite::init())
{
return false;
}
initData(inCardImageName, outCardImageName, duration);
return true;
}

#pragma mark - initData
void CardSprite::initData(const char* inCardImageName, const char* outCardImageName, float duration)
{
m_isOpened = false;

CCSprite* inCard = CCSprite::create(inCardImageName);
inCard->setPosition(CCPointZero);
inCard->setVisible(false);
inCard->setTag(tag_inCard);
addChild(inCard);

CCSprite* outCard = CCSprite::create(outCardImageName);
outCard->setPosition(CCPointZero);
outCard->setTag(tag_outCard);
addChild(outCard);

m_openAnimIn = (CCActionInterval*)CCSequence::create(CCDelayTime::create(duration * .5),
CCShow::create(),
CCOrbitCamera::create(duration * .5, 1, 0, kInAngleZ, kInDeltaZ, 0, 0),
NULL);
m_openAnimIn->retain();

m_openAnimOut = (CCActionInterval *)CCSequence::create(CCOrbitCamera::create(duration * .5, 1, 0, kOutAngleZ, kOutDeltaZ, 0, 0),
CCHide::create(),
CCDelayTime::create(duration * .5),
NULL);
m_openAnimOut->retain();
}

#pragma mark - public func
void CardSprite::openCard()
{
CCSprite* inCard = (CCSprite*)getChildByTag(tag_inCard);
CCSprite* outCard = (CCSprite*)getChildByTag(tag_outCard);
inCard->runAction(m_openAnimIn);
outCard->runAction(m_openAnimOut);
}