LayerAnchorPoint
#include “cocos2d.h”
USING_NS_CC;
class T01LayerAnchorPoint:public CCLayer
{
public:
static T01LayerAnchorPoint * create();
bool init();
static CCScene *scene();
void draw();
void mySchedule(float dt);
CCSprite *spr;
};
#endif
#include “T01LayerAnchorPoint.h”
T01LayerAnchorPoint * T01LayerAnchorPoint::create()
{
创建对象
T01LayerAnchorPoint *pRet = new T01LayerAnchorPoint();
初始化和内存托管
if (pRet && pRet->init())
{
pRet->autorelease();
}
else
{
delete pRet;
pRet = NULL;
}
return pRet;
}
初始化
bool T01LayerAnchorPoint::init()
{
if (!CCLayer::init())
{
return false;
}
获取位置
//get windows size form director
CCSize winSize = CCDirector::sharedDirector()->getWinSize();
创建sprite
CCSprite *spr =CCSprite::create(“anchor3.png”);
//spr = CCSprite::create(“anchor1.png”);
设置锚点位置
spr->setAnchorPoint(ccp(0.65, 0.5)); //锚点
忽略锚点
//spr->ignoreAnchorPointForPosition(true); // 忽略锚点 默认的是sprite 锚点至为 （0，0）
设置位置
spr->setPosition(ccp(winSize.width / 2,winSize.height / 2)); //位置
放大
spr->setScale(1.0); //放大
定时器
//schedule(schedule_selector(T01LayerAnchorPoint::mySchedule),1); // 定时器 函数回调
添加sprite到cclayer
this->addChild(spr);
return true;
}
回调函数
//定时器
void T01LayerAnchorPoint::mySchedule(float dt)
{
static float ro = 0; //每次调用旋转的度数
ro += 6;
spr->setRotation(ro);
}
创建scene
CCScene *T01LayerAnchorPoint::scene()
{
CCScene *scene = CCScene::create();
//scene->setAnchorPoint(ccp(0,0));
创建layer
T01LayerAnchorPoint *layer =T01LayerAnchorPoint::create();
//CCLog(“x = %f ,y = %f “,layer->getPositionX(), layer->getPositionY());
//layer->ignoreAnchorPointForPosition(false);
添加layer到scene
scene->addChild(layer);
return scene;
}
//over load 画直线
void T01LayerAnchorPoint::draw()
{
CCSize winSize =CCDirector::sharedDirector()->getWinSize();
设置直线的颜色
ccDrawColor4B(255,0,0,255);
两个坐标划线
ccDrawLine(ccp(0,winSize.height/2),ccp(winSize.width,winSize.height/2));
ccDrawLine(ccp(winSize.width/2, 0),ccp(winSize.width/2, winSize.height ));
}