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 UIKit
import SpriteKit

class 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 UIKit
import SpriteKit

class 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 UIKit
import SpriteKit

class 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 UIKit
import SpriteKit

class 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 UIKit
import SpriteKit

class 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)
}
}