5.cocos2d锚点

创建一个层T1LayerAnchorPoint

• AppDelegate.cpp

   1 bool AppDelegate::applicationDidFinishLaunching() {
   2     // initialize director
   3     auto director = Director::getInstance();
   4     auto glview = director->getOpenGLView();
   5     if(!glview) {
   6         glview = GLViewImpl::createWithRect("MyLayer", Rect(0, 0, 960, 640));
   7         director->setOpenGLView(glview);
   8     }
   9 
  10     director->getOpenGLView()->setDesignResolutionSize(960, 640, ResolutionPolicy::SHOW_ALL);
  11 
  12     // turn on display FPS
  13     director->setDisplayStats(true);
  14 
  15     // set FPS. the default value is 1.0/60 if you don't call this
  16     director->setAnimationInterval(1.0 / 60);
  17 
  18     FileUtils::getInstance()->addSearchPath("res");
  19 
  20     // create a scene. it's an autorelease object
  21     //auto scene = HelloWorld::createScene();
  22 
  23     //CCScene *pScene = MyScene::create();
  24     CCScene *pScene = T1LayerAnchorPoint::scene();
  25 
  26     // run
  27     director->runWithScene(pScene);
  28 
  29     return true;
  30 }

   

• T1LayerAnchorPoint.h

   1 #pragma once
   2 #include "cocos2d.h"
   3 USING_NS_CC;
   4 
   5 class T1LayerAnchorPoint:public CCLayer
   6 {
   7 public:
   8     //create->init
   9     static T1LayerAnchorPoint*create();
  10     bool init();
  11     static CCScene *scene();
  12 
  13     //画线
  14     virtual void draw(cocos2d::Renderer *renderer, const cocos2d::Mat4& transform, uint32_t flags);
  15 };

   

• T1LayerAnchorPoint.cpp

   1 #include "T1LayerAnchorPoint.h"
   2 
   3 //创建层
   4 T1LayerAnchorPoint*T1LayerAnchorPoint::create()
   5 {
   6     T1LayerAnchorPoint *pRet = new T1LayerAnchorPoint();
   7     if (pRet && pRet->init())
   8     {
   9         pRet->autorelease();
  10     }
  11     else
  12     {
  13         delete pRet;
  14         pRet = NULL;
  15     }
  16     return pRet;
  17 
  18 }
  19 
  20 //初始化层
  21 bool T1LayerAnchorPoint::init()
  22 {
  23     CCLayer::init();
  24 
  25     CCSize winSize = CCDirector::sharedDirector()->getWinSize();
  26     CCSprite *spr = CCSprite::create("anchor3.png");
  27     //设置锚点
  28     spr->setAnchorPoint(ccp(0, 0));
  29     spr->setPosition(ccp(winSize.width / 2, winSize.height / 2));
  30     addChild(spr);
  31     return true;
  32 }
  33 
  34 CCScene *T1LayerAnchorPoint::scene()
  35 {
  36     CCScene *scene = CCScene::create();
  37     T1LayerAnchorPoint *layer = T1LayerAnchorPoint::create();
  38     scene->addChild(layer);
  39     return scene;
  40 }
  41 
  42 void T1LayerAnchorPoint::draw(cocos2d::Renderer *renderer, const cocos2d::Mat4& transform, uint32_t flags)
  43 {
  44     CCSize winSize = CCDirector::sharedDirector()->getWinSize();
  45     ccDrawColor4B(255, 0, 0, 255);
  46 
  47     ccDrawLine(ccp(0, winSize.height / 2), ccp(winSize.width, winSize.height / 2));
  48     ccDrawLine(ccp(winSize.width / 2, 0), ccp(winSize.width / 2, winSize.height));
  49 }

   

转载于:https://www.cnblogs.com/xiaochi/p/8342593.html