cocos2d-x 动画CCAnimation

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http://download.csdn.net/detail/wu_123_456/7615263

1.在init（）函数中添加如下代码：

CCSprite* sprite2 = CCSprite::create("animation.png",CCRectMake(1,1,200,285));sprite2->setPosition(ccp(200,150));this->addChild(sprite2,4);sprite2->runAction(createAnimation());

CCRectMake功能是在该图片资源中截取某一部分。

2.createAnimation()函数的创建

CCAction* NodeHelloWorld::createAnimation(){CCSpriteBatchNode *bathnode = CCSpriteBatchNode::create("animation.png");int iFrameNum = 4;CCSpriteFrame* frame = NULL;CCArray* frameArray = CCArray::create();for (int i = 0; i < iFrameNum ;++i){int x = i*200+1;int y = 1;frame = CCSpriteFrame::createWithTexture(bathnode->getTexture(),CCRectMake(x,y,200,285));frameArray->addObject(frame);}CCAnimation* animation = CCAnimation::createWithSpriteFrames(frameArray);animation->setLoops(-1);animation->setDelayPerUnit(0.5f);CCAction* action = CCAnimate::create(animation);return action;}

创建动画，过程中使用CCSpriteFrame帧控制，再由帧创建出CCAnimation（名词），要想动起来，还得创建动作（也就是动词）CCAnimate，对于内存中的优化，在上述代码中使用的是CCSpritebatchNode，也可使用精灵帧缓存类CCSpriteFrameCache，如上一篇中所描述，要有plist文件。

参考代码：

CCAction* TollgateScene::createAnimation(){CCSpriteFrameCache *boysCache = CCSpriteFrameCache::sharedSpriteFrameCache();boysCache->addSpriteFramesWithFile("boys.plist","boys.png");CCSpriteFrame *frame = NULL;CCArray* framearray = CCArray::create();for (int i = 1; i <= MAX_BOYS_COUNTS;++i){CCString *str = CCString::createWithFormat("run%d.png",i);frame = boysCache->spriteFrameByName(str->getCString());framearray->addObject(frame);}CCAnimation*  animation = CCAnimation::createWithSpriteFrames(framearray);animation->setLoops(-1);animation->setDelayPerUnit(0.03f);CCAction* action = CCAnimate::create(animation);return action;}

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