Follow 在地图中使地图和人物一起运动
Follow 在地图中使地图和人物一起运动
1 bool HelloWorld::init() 2 { 3 ////////////////////////////// 4 // 1. super init first 5 if ( !Layer::init() ) 6 { 7 return false; 8 } 9 10 Size visibleSize = Director::getInstance()->getVisibleSize(); 11 Vec2 origin = Director::getInstance()->getVisibleOrigin(); 12 13 // add "HelloWorld" splash screen" 14 auto sprite = Sprite::create("HelloWorld.png"); 15 16 // position the sprite on the center of the screen 17 sprite->setPosition(Vec2(visibleSize.width/2 + origin.x, visibleSize.height/2 + origin.y)); 18 19 // add the sprite as a child to this layer 20 this->addChild(sprite, 0); 21 22 23 ///////// Follow 在地图中使地图和人物一起运动 ////////// 24 25 26 Sprite* sprite1 = Sprite::create("button.png"); 27 sprite1->setPosition(Vec2(visibleSize.width * 0.2, visibleSize.height * 0.5)); 28 this->addChild(sprite1); 29 30 Sprite* sprite2 = Sprite::create("CloseNormal.png"); 31 sprite2->setPosition(Vec2(visibleSize.width * 0.8, visibleSize.height * 0.8)); 32 this->addChild(sprite2); 33 34 ActionInterval *move = MoveTo::create(2, Vec2(visibleSize.width * 0.4, visibleSize.height * 0.5)); 35 36 // 参数(跟随的节点，跟随的范围)(sprite1:跟随精灵, CCRectZero:一直跟随); 37 Follow *follow = Follow::create(sprite1, CCRectZero); 38 39 log("sprite1 %f, %f", sprite1->getPositionX(), sprite1->getPositionY()); 40 log("sprite2 %f, %f", sprite2->getPositionX(), sprite2->getPositionY()); 41 42 ActionInstant *funcN = CallFuncN::create(this, callfuncN_selector(HelloWorld::funcNCallBack)); 43 //sprite1->setTag(111); 44 sprite1->runAction(Sequence::create(move ,funcN,nullptr)); 45 46 sprite2->runAction(follow); 47 48 ///////// follow 在地图中使地图和人物一起运动 ////////// 49 50 return true; 51 } 52 53 54 // 获取精灵的回调函数;精灵变大 3 倍 55 void HelloWorld::funcNCallBack(Node *pSender){ 56 57 Sprite* sprite = (Sprite*)pSender; 58 ActionInterval *scale = ScaleTo::create(1.0f, 3.0f); 59 sprite->runAction(scale); 60 61 log("sprite %f, %f", sprite->getPositionX(), sprite->getPositionY()); 62 63 }
控制台显示内容
sprite1 192.000000, 320.000000
sprite2 768.000000, 512.000000
sprite1 384.000000, 320.000000
