Cocos2d-x_位置和锚点

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  1. bool HelloWorld::init()
  2. {
  3. if ( !CCLayer::init() )
  4. {
  5. return false;
  6. }
  7. CCSize winSize = CCDirector::sharedDirector()->getWinSize();
  8.  
  9. // (position)位置和(anchorpoint)锚点,这两个东西必定是重合的,首先是根据setPosition设置好在父节点的位置,锚点再根据位置进行重合旋转
  10. CCSprite *pSpr = CCSprite::create("Icon-57.png");
  11. pSpr->setPosition(ccp(winSize.width/2.0,winSize.height/2.0));
  12. pSpr->setAnchorPoint(ccp(0.5,0.5));
  13. this->addChild(pSpr);
  14. CCLabelTTF *pPositonTTF = CCLabelTTF::create("","Arial",20);
  15. pPositonTTF->setPosition(ccp(winSize.width/2.0,winSize.height/2.0/2.0));
  16. this->addChild(pPositonTTF);
  17. CCLabelTTF *pAnchorPointTTF = CCLabelTTF::create("",20);
  18. pAnchorPointTTF->setPosition(ccp(winSize.width/2.0,winSize.height/2.0/2.0-30));
  19. this->addChild(pAnchorPointTTF);
  20. CCPoint position = pSpr->getPosition();
  21. CCString *strPosition = CCString::createWithFormat("Position: x:%.1f,y:%.1f",position.x,position.y);
  22. pPositonTTF->setString(strPosition->getCString());
  23. CCPoint anchor = pSpr->getAnchorPoint();
  24. CCString *strAnchor = CCString::createWithFormat("AnchorPoint: x:%.1f,anchor.x,anchor.y);
  25. pAnchorPointTTF->setString(strAnchor->getCString());
  26. return true;
  27. }


效果图如下:





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