Cocos2dx之CCLayer层

最新推荐文章于 2022-02-09 21:16:28 发布

CCDreamOldBoys

最新推荐文章于 2022-02-09 21:16:28 发布

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分类专栏： Cocos2d-x

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本文详细介绍了 Cocos2d-x 游戏开发框架中的层概念，包括 CCScene、CCLayer 和精灵之间的关系。具体分析了 CCLayerColor、CCLayerGradient 和 CCLayerMultiplex 的用法及实现示例。

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一、层的概念

我们从Cocosd2x框架中可以看出，它分为导演-->场景--->层-->精灵，并且为树状结构；一个导演可以包含多个场景、一个场景可以包含多个层。那当然，一个层可以包含多个精灵，他们相当于一个容器，子容器中设置我们要显示的东西。

二、CClayerColor类

#ifndef __T06CCLayers_H__
#define __T06CCLayers_H__
#include "cocos2d.h"
#include "f:\cocos2dx\cocos2d-x-2.2.6\cocos2dx\layers_scenes_transitions_nodes\cclayer.h"
USING_NS_CC;
class T06CCLayers :
	public CCLayer
{
public:
	T06CCLayers(void);
	~T06CCLayers(void);
	static CCScene* scene();
	CREATE_FUNC(T06CCLayers);
	bool init();
};
#endif

<pre name="code" class="cpp">#include "T06CCLayers.h"


T06CCLayers::T06CCLayers(void)
{
}


T06CCLayers::~T06CCLayers(void)
{
}


CCScene* T06CCLayers::scene()
{
	CCScene* scene = CCScene::create();
	T06CCLayers* layer = T06CCLayers::create();
	scene->addChild(layer);
	return scene;
}

bool T06CCLayers::init()
{
	CCLayer::init();

	CCSize size = CCDirector::sharedDirector()->sharedDirector()->getWinSize();
	CCLayerColor* layer = CCLayerColor::create(ccc4(255, 0, 0, 255), size.width / 2, size.height / 2);
	addChild(layer);
	return true;
}

三、 CCLayerGradient类

CCLayerGradient* layer = CCLayerGradient::create(ccc4(255, 0, 0, 255), ccc4(0, 255, 0, 255),ccp(1, 1));

四、CCLayerMutiplex

#include "T06CCLayers.h"


T06CCLayers::T06CCLayers(void)
{
}


T06CCLayers::~T06CCLayers(void)
{
}


CCScene* T06CCLayers::scene()
{
	CCScene* scene = CCScene::create();
	T06CCLayers* layer = T06CCLayers::create();
	scene->addChild(layer);
	return scene;
}

bool T06CCLayers::init()
{
	CCLayer::init();

	CCSize size = CCDirector::sharedDirector()->sharedDirector()->getWinSize();
	CCLayerColor* layer1 = CCLayerColor::create(ccc4(255, 0, 0, 255), size.width / 2, size.height / 2);

	CCLayerGradient* layer2 = CCLayerGradient::create(ccc4(255, 0, 0, 255), ccc4(0, 255, 0, 255),ccp(1, 1));
	CCLayerMultiplex* layer = CCLayerMultiplex::create(layer1, layer2, NULL); 
	_id = 0;
	
	setTouchEnabled(true);
	_layer = layer;
	addChild(layer);
	return true;
}

void T06CCLayers::ccTouchesBegan(CCSet *pTouches, CCEvent *pEvent)
{
	_id = 1 - _id;
	_layer ->switchTo(_id);
}