swift 快速奔跑的兔几 本节的内容是：SpriteKit第二讲

补充一下，Sprite是精灵的意思喔～是不是感觉萌萌哒～～～～～
SpriteKit节点：
不同的节点做不同的事情：
SKSpriteNode：显示一个图像或者一个彩色矩形。
SKLabelNode：显示文本
SKShapeNode：显示任意UIBezierPath
SKEffectNode：向其所有子节点应用图像特效，比如模糊或者色移。
空的SKNode对象，可以将多个节点划分为一组。

下面是使用SKSpriteNode显示一个小黄人图片的栗子：

import UIKitimport SpriteKitclass GameScene: SKScene {    override func didMoveToView(view: SKView) {        // 当屏幕发生变化时的效果        self.scaleMode = .AspectFill        let label = SKLabelNode(text: "I am littleYellowMan")        label.position = CGPoint(x: size.width/2.0, y: size.height/2.0)        let spriteNode1 = SKSpriteNode(imageNamed: "littleYellowMan.jpg")        spriteNode1.position = CGPoint(x: size.width/2.0, y: size.height/3.5)        spriteNode1.size = CGSize(width: size.width, height: size.height/3)        self.addChild(spriteNode1)        self.addChild(label)    }}

import UIKitimport SpriteKitclass spriteKitViewController: UIViewController {    override func viewDidLoad() {        super.viewDidLoad()        let scene = GameScene(size:self.view.bounds.size)        scene.backgroundColor = UIColor.grayColor()        scene.scaleMode = .AspectFill        let skView = self.view as! SKView        //let transitionOne = SKTransition.moveInWithDirection(SKTransitionDirection.Right, duration: 0.5)        skView.presentScene(scene)    }}

ok,下面要来试一试接受点击事件：并且做场景切换，这一步需要3个文件咯，那个func touchesBegan负责处理点击事件咯～

import UIKitimport SpriteKitclass MenuScene: SKScene {    override func didMoveToView(view: SKView) {        let lableOfMenu = SKLabelNode(text: "welcome to YellowMoon!")        lableOfMenu.fontSize = 20        lableOfMenu.position = CGPoint(x: size.width/2.0, y: size.height/2.0)        self.addChild(lableOfMenu)    }    override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {        let showSprite = GameScene(size:self.size)        let transitionFromHere = SKTransition.moveInWithDirection(SKTransitionDirection.Right, duration: 0.5)        self.view?.presentScene(showSprite, transition: transitionFromHere)    }}

import UIKitimport SpriteKitclass GameScene: SKScene {    override func didMoveToView(view: SKView) {        // 当屏幕发生变化时的效果        self.scaleMode = .AspectFill        let label = SKLabelNode(text: "I am littleYellowMan")        label.position = CGPoint(x: size.width/2.0, y: size.height/2.0)        let spriteNode1 = SKSpriteNode(imageNamed: "littleYellowMan.jpg")        spriteNode1.position = CGPoint(x: size.width/2.0, y: size.height/3.5)        spriteNode1.size = CGSize(width: size.width, height: size.height/3)        self.addChild(spriteNode1)        self.addChild(label)    }}

import UIKitimport SpriteKitclass spriteKitViewController: UIViewController {    override func viewDidLoad() {        super.viewDidLoad()        let scene = MenuScene(size:self.view.bounds.size)        scene.backgroundColor = UIColor.grayColor()        scene.scaleMode = .AspectFill        let skView = self.view as! SKView        //let transitionOne = SKTransition.moveInWithDirection(SKTransitionDirection.Right, duration: 0.5)        skView.presentScene(scene)    }}