1 // 2 // MainScene.cpp 3 // helloworld 4 // 5 // Created by apple on 16/11/8. 6 // 7 // 8 9 #include "MainScene.hpp" 10 Scene * MainScene::createScene() 11 { 12 auto scene = Scene::create(); //创建层 13 MainScene *layer = MainScene::create(); 14 scene->addChild(layer); 15 return scene; 16 } 17 bool MainScene::init(){ 18 if (!Layer::init()) { 19 return false; 20 } 21 22 23 // MoveTo：把某一Sprite移动到某个位置 24 // MoveBy:把某一Sprite移动一段距离,它有一个方法reverse，它让对象按原路径返回 25 26 27 /* 28 *@MoveTo,移动到某个Point 29 */ 30 Size size = Director::getInstance()->getWinSize(); 31 Sprite *spriteMoveTo = Sprite::create("snow.png"); 32 spriteMoveTo->setPosition(Vec2(size.width / 2.0f, size.height / 2.0f)); 33 this->addChild(spriteMoveTo, 1); 34 35 ActionInterval *forward = MoveTo::create(4, Vec2(300, 300)); 36 spriteMoveTo->runAction(forward); 37 38 39 /* 40 *MoveBy,移动一段距离 41 */ 42 Sprite *spriteMoveBy = Sprite::create("snow.png"); 43 spriteMoveBy->setPosition(Vec2(size.width / 4.0f, size.height / 4.0f)); 44 this->addChild(spriteMoveBy, 1); 45 46 ActionInterval *forwardBy = MoveBy::create(2, Vec2(200, 300)); 47 ActionInterval *backBy = forwardBy->reverse(); 48 Action *action = Repeat::create(dynamic_cast<FiniteTimeAction *>(Sequence::create(forwardBy, backBy, NULL)), 4); 49 spriteMoveBy->runAction(action); 50 51 52 53 return true; 54 }