cocos2d-x 動畫CCAnimation

原創

2020-02-22 06:40

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

1.在init（）函數中添加如下代碼：

CCSprite* sprite2 = CCSprite::create("animation.png",CCRectMake(1,1,200,285));

sprite2->setPosition(ccp(200,150));
this->addChild(sprite2,4);
sprite2->runAction(createAnimation());

CCRectMake功能是在該圖片資源中截取某一部分。

2.createAnimation()函數的創建

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;
}

創建動畫，過程中使用CCSpriteFrame幀控制，再由幀創建出CCAnimation（名詞），要想動起來，還得創建動作（也就是動詞）CCAnimate，對於內存中的優化，在上述代碼中使用的是CCSpritebatchNode，也可使用精靈幀緩存類CCSpriteFrameCache，如上一篇中所描述，要有plist文件。

參考代碼：

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;
}