Sprite（精灵）&& 三个特殊的层Layer

用来作为以后复习使用。

 1 #include "ScenceScend.h"

 2 

 3 CCScene* ScenceScend::scene()

 4 {

 5     CCScene* s = CCScene::create();

 6     ScenceScend* layer = ScenceScend::create();

 7     s->addChild(layer);

 8     return s;

 9 

10 }

11 bool ScenceScend::init()

12 {

13     CCLayer::init();

14     //1.通过文件直接创建精灵

15     //CCSprite* sprite = CCSprite::create();

16     //CCSprite* sprite = CCSprite::create(filename,CCRect);

17     //CCSprite* sprite = CCSprite::create(filename);

18 

19 

20     //2.通过纹理去创建精灵

21 

22     //CCTexture2D* texture = CCTextureCache::sharedTextureCache()->addImage("filename");

23     //CCSprite* sprite = CCSprite::createWithTexture(texture);

24     //CCSprite* sprite = CCSprite::createWithTexture(texture,CCRect);也可取图片局部

25     //addChild(sprite);

26     //3通过精灵帧来创建

27     /*

28     CCSize size = CCDirector::sharedDirector()->getWinSize();

29     

30     CCTexture2D* texture = CCTextureCache::sharedTextureCache()->addImage("HelloWorld.png");

31     CCSize size2 = texture->getContentSize();

32     CCSpriteFrame* frame =

33         CCSpriteFrame::createWithTexture(texture, CCRectMake(size2.height / 4, size2.width / 4, size2.width / 2, size2.width / 2));

34     CCSprite* sprite = CCSprite::createWithSpriteFrame(frame);

35     sprite->setPosition(size.width/2,size.height/2);

36     addChild(sprite);

37     */

38 

39     //4.通过精灵帧缓存 去创建精灵

40 

41     CCSize size = CCDirector::getInstance()->getWinSize();

42     //CCTexture2D 贴图类

43     CCTexture2D* texture = CCTextureCache::sharedTextureCache()->addImage("HelloWorld.png");

44     CCSize size2 = texture->getContentSize();

45     CCSpriteFrame* frame =

46         CCSpriteFrame::createWithTexture(texture, CCRectMake(size2.height / 4, size2.width / 4, size2.width / 2, size2.width / 2));

47     CCSpriteFrameCache::sharedSpriteFrameCache()->addSpriteFrame(frame,"HXL");

48     CCSprite* sprite = CCSprite::createWithSpriteFrameName("HXL");

49     sprite->setPosition(size.width / 2, size.height / 2);

50     addChild(sprite);

51 

52     /*

53     //调用父类的初始化。因此这里是 子类方法覆盖父类了。

54     CCLayer::init();

55     CCLabelTTF *label = CCLabelTTF::create("hxltom","Arial",36);

56     label->setPosition(CCPoint(100,200));

57     addChild(label);

58     */

59 

60     return true;

61 }

 

 

三个特殊的层。

 1 #include "example2.h"

 2 

 3 CCScene* example2::scene()

 4 {

 5     CCScene* s = CCScene::create();

 6     example2* layer = example2::create();

 7     s->addChild(layer);

 8     return s;

 9 

10 }

11 bool example2::init()

12 {

13     //CCLayerColor::init();

14     CCLayerColor::initWithColor(ccc4(255,0,0,255));

15     //CCLayerColor::init();默认也是黑色

16 

17 

18     //三个特殊的层。

19     /*

20     1.CCLayerColor 可改变layer的背景,设置层的大小

21     2.CCLayerGradient 有渐变效果的层

22     3.CCLayerMultiplex

23 

24     CCLayerColor::create(ccColor4B（）);

25     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

26     CCLayerColor::create(ccc4(255,0,0,255)); 红,绿,蓝，透明度

27 

28     CCLayerGradient

29     */

30     

31 #if 0 

32     //CCLayerColor !!!!!!!!!!!!

33     CCSize size = CCDirector::getInstance()->getWinSize();

34     CCLayerColor* layer = CCLayerColor::create(

35         ccc4(200,200,200,255),size.width/2,size.height/2

36         ); 

37     addChild(layer);

38 #endif

39 

40 #if 0

41     //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）

42     //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

43     //CCLayerGradient* layer = CCLayerGradient::create(ccc4(255,0,0,255),ccc4(255,0,255,255));

44     //一开始设置渐变方向

45     CCLayerGradient* layer = CCLayerGradient::create(

46         ccc4(255, 0, 0, 255), ccc4(255, 0, 255, 255),

47         ccp(0,1)

48         );

49     /*

50    //生成之后改变渐变方向 (两种方式等价的)

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

52     layer->setVector(ccp(0,1));

53     addChild(layer);

54     */

55 

56 #endif

57 

58     //CCLayerMultiplex可以包含好几个层，但是只是显示其中一个

59     CCSize size = CCDirector::getInstance()->getWinSize();

60     CCLayerColor* layer1 = CCLayerColor::create(ccc4(255,255,0,255),size.width/2,size.height/2);

61     CCLayerGradient* layer2 = CCLayerGradient::create(ccc4(255, 0, 0, 255), ccc4(255, 0, 255, 255));

62     CCLayerMultiplex* layer = CCLayerMultiplex::create(layer1, layer2, NULL);

63 

64     layer->switchTo(0);//设置显示第一个

65     addChild(layer);

66 

67     setTouchEnabled(true);

68     setTouchMode(kCCTouchesOneByOne);

69     return true;

70 }