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import SpriteKitclass Cat:SKSpriteNode{ //神经猫的纹理集 let dbAtlas = SKTextureAtlas(named: "db.atlas") //神经猫的纹理数组 var dbFrames = [SKTexture]() override init() { //获取纹理集的第一个纹理 let texture = dbAtlas.textureNamed("db_01") //获取纹理的尺寸 let size = texture.size() //执行父类的构造方法 super.init(texture:texture,color:SKColor.whiteColor(),size:size) var i:Int var tempName:String //从纹理集中获取纹理加入数组 for i=1 ; i <= dbAtlas.textureNames.count ; i++ { //%.2d表示两位整数。下面格式化完毕后便是db_01，db_02，db_03等 tempName = String(format:"db_%.2d",i) let dbTexture = dbAtlas.textureNamed(tempName) dbFrames.append( dbTexture ) } //设置中心点 self.anchorPoint = CGPointMake(0.5, 0.2) //播放动画 db() } required init(coder aDecoder: NSCoder) { fatalError("init(coder:) has not been implemented") } func db(){ //循环播放纹理动画 self.runAction(SKAction.repeatActionForever( SKAction.animateWithTextures(dbFrames, timePerFrame: 0.2))) }} |
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import SpriteKitclass GameScene: SKScene { //利用lazy关键字可以让实例化在第一次使用时才执行 lazy var cat = Cat() //当切换到这个场景视图后 override func didMoveToView(view: SKView) { cat.position = CGPoint(x:CGRectGetMidX(self.frame)-10, y:CGRectGetMidY(self.frame)-150); cat.zPosition = 20 self.addChild(cat) } //响应屏幕点击的方法 override func touchesBegan(touches: NSSet, withEvent event: UIEvent) { }} |
Swift - 使用atlas图集实现动画效果（SpriteKit游戏开发）
原文：http://www.cnblogs.com/Free-Thinker/p/4841094.html