Sprite（精灵）&& 三个特殊的层Layer

用来作为以后复习使用。

 1 #include "ScenceScend.h"

 CCScene* ScenceScend::scene()
 {
     CCScene* s = CCScene::create();
     ScenceScend* layer = ScenceScend::create();
     s->addChild(layer);
     return s;

 }
 bool ScenceScend::init()
 {
     CCLayer::init();
     //1.通过文件直接创建精灵
     //CCSprite* sprite = CCSprite::create();
     //CCSprite* sprite = CCSprite::create(filename,CCRect);
     //CCSprite* sprite = CCSprite::create(filename);

     //2.通过纹理去创建精灵

     //CCTexture2D* texture = CCTextureCache::sharedTextureCache()->addImage("filename");
     //CCSprite* sprite = CCSprite::createWithTexture(texture);
     //CCSprite* sprite = CCSprite::createWithTexture(texture,CCRect);也可取图片局部
     //addChild(sprite);
     //3通过精灵帧来创建
     /*
     CCSize size = CCDirector::sharedDirector()->getWinSize();

     CCTexture2D* texture = CCTextureCache::sharedTextureCache()->addImage("HelloWorld.png");
     CCSize size2 = texture->getContentSize();
     CCSpriteFrame* frame =
         CCSpriteFrame::createWithTexture(texture, CCRectMake(size2.height / 4, size2.width / 4, size2.width / 2, size2.width / 2));
     CCSprite* sprite = CCSprite::createWithSpriteFrame(frame);
     sprite->setPosition(size.width/2,size.height/2);
     addChild(sprite);
     */

     //4.通过精灵帧缓存 去创建精灵

     CCSize size = CCDirector::getInstance()->getWinSize();
     //CCTexture2D 贴图类
     CCTexture2D* texture = CCTextureCache::sharedTextureCache()->addImage("HelloWorld.png");
     CCSize size2 = texture->getContentSize();
     CCSpriteFrame* frame =
         CCSpriteFrame::createWithTexture(texture, CCRectMake(size2.height / , size2.width / , size2.width / , size2.width / ));
     CCSpriteFrameCache::sharedSpriteFrameCache()->addSpriteFrame(frame,"HXL");
     CCSprite* sprite = CCSprite::createWithSpriteFrameName("HXL");
     sprite->setPosition(size.width / , size.height / );
     addChild(sprite);

     /*
     //调用父类的初始化。因此这里是 子类方法覆盖父类了。
     CCLayer::init();
     CCLabelTTF *label = CCLabelTTF::create("hxltom","Arial",36);
     label->setPosition(CCPoint(100,200));
     addChild(label);
     */

     return true;
 }

三个特殊的层。

 #include "example2.h"

 CCScene* example2::scene()
 {
     CCScene* s = CCScene::create();
     example2* layer = example2::create();
     s->addChild(layer);
     return s;

 }
 bool example2::init()
 {
     //CCLayerColor::init();
     CCLayerColor::initWithColor(ccc4(,,,));
     //CCLayerColor::init();默认也是黑色

     //三个特殊的层。
     /*
     1.CCLayerColor 可改变layer的背景,设置层的大小
     2.CCLayerGradient 有渐变效果的层
     3.CCLayerMultiplex

     CCLayerColor::create(ccColor4B（）);
     ccColor4B（）这个类封装了颜色，里面有4个参数 r g b o  o代表透明度
     CCLayerColor::create(ccc4(255,0,0,255)); 红,绿,蓝，透明度

     CCLayerGradient
     */

 #if 0
     //CCLayerColor !!!!!!!!!!!!
     CCSize size = CCDirector::getInstance()->getWinSize();
     CCLayerColor* layer = CCLayerColor::create(
         ccc4(,,,),size.width/,size.height/
         );
     addChild(layer);
 #endif

 #if 0
     //CCLayerGradient 有渐变效果的层,透明度也可以渐变，渐变方向（第三个参数）
     //渐变默认从上往下。cp(0,1)从底下往上渐变 cp(1,1)左下角到右上角
     //CCLayerGradient* layer = CCLayerGradient::create(ccc4(255,0,0,255),ccc4(255,0,255,255));
     //一开始设置渐变方向
     CCLayerGradient* layer = CCLayerGradient::create(
         ccc4(, , , ), ccc4(, , , ),
         ccp(,)
         );
     /*
    //生成之后改变渐变方向 (两种方式等价的)
     CCLayerGradient* layer = CCLayerGradient::create(ccc4(255, 0, 0, 255), ccc4(255, 0, 255, 255));
     layer->setVector(ccp(0,1));
     addChild(layer);
     */

 #endif

     //CCLayerMultiplex可以包含好几个层，但是只是显示其中一个
     CCSize size = CCDirector::getInstance()->getWinSize();
     CCLayerColor* layer1 = CCLayerColor::create(ccc4(,,,),size.width/,size.height/);
     CCLayerGradient* layer2 = CCLayerGradient::create(ccc4(, , , ), ccc4(, , , ));
     CCLayerMultiplex* layer = CCLayerMultiplex::create(layer1, layer2, NULL);

     layer->switchTo();//设置显示第一个
     addChild(layer);

     setTouchEnabled(true);
     setTouchMode(kCCTouchesOneByOne);
     return true;
 }