Xcode Swift iOS - GameScene没有一个名为

Question

的会员请任何人都可以帮我重新安置一些代码，我知道这个事件可能需要移动，但我不知道在哪里。我已经找到了答案，但我无法看到任何特定于我的问题。

该错误是

'GameScene' 没有一个名为构件 'spawnCrow'

下面是代码（第1行错误）....

var spawn = SKAction.runBlock({() in self.spawnCrow()}) //THIS IS WHERE THE ERROR IS 
    var delay = SKAction.waitForDuration(NSTimeInterval(2.0)) 
    var spawnThenDelay = SKAction.sequence([spawn, delay]) 
    var spawnThenDelayForever = SKAction.repeatActionForever(spawnThenDelay) 
    self.runAction(spawnThenDelayForever) 

    self.addChild(crow) 

    func spawnCrow() { 

请让我知道是否需要更多的代码，我会很乐意分享。

func yourMethod() { 
    var spawn = SKAction.runBlock({() in self.spawnCrow()}) 
} 

func spawnCrow() { 
    // do some spawning 
} 

或删除self，并继续有定义：

与整个代码

import SpriteKit 

class GameScene: SKScene { 


var cat = SKSpriteNode() 
var crow = SKSpriteNode() 
var crowTexture1 = SKTexture() 
var skyColor = SKColor() 
var moveAndRemoveCrow = SKAction() 


override func didMoveToView(view: SKView) { 
    /* Setup your scene here */ 

    self.physicsWorld.gravity = CGVectorMake(0.0, -4.0) 

    skyColor = SKColor(red:113.0/255.0, green:197.0/255.0, blue:207.0/255.0, alpha:1.0) 
    self.backgroundColor = skyColor 

    var catTexture1 = SKTexture(imageNamed: "Cat1") 
    catTexture1.filteringMode = SKTextureFilteringMode.Nearest 
    var catTexture2 = SKTexture(imageNamed: "Cat2") 
    catTexture2.filteringMode = SKTextureFilteringMode.Nearest 

    var anim = SKAction.animateWithTextures([catTexture1, catTexture2], timePerFrame: 0.2) 
    var run = SKAction.repeatActionForever(anim) 

    cat = SKSpriteNode(texture: catTexture1) 
    cat.position = CGPoint(x: self.frame.size.width/2.2, y: self.frame.size.height/7.0) 
    cat.runAction(run) 

    cat.physicsBody = SKPhysicsBody(circleOfRadius: cat.size.height/2.0) 
    cat.physicsBody!.dynamic = true 
    cat.physicsBody!.allowsRotation = false 

    self.addChild(cat) 

    // start of crow test 


    var crowTexture1 = SKTexture(imageNamed: "crow") 
    crowTexture1.filteringMode = SKTextureFilteringMode.Nearest 

    crow = SKSpriteNode(texture: crowTexture1) 
    crow.position = CGPoint(x: self.frame.size.width/1.8, y: self.frame.size.height/1.2) 

    // crow test 2 spawn 

    var distanceToMove = CGFloat(self.frame.size.width + 2 * crowTexture1.size().width); 
    var moveCrow = SKAction.moveByX(-distanceToMove, y:0, duration:NSTimeInterval(0.01 * distanceToMove)); 
    var removeCrow = SKAction.removeFromParent(); 
    moveAndRemoveCrow = SKAction.sequence([moveCrow, removeCrow]); 

    var spawn = SKAction.runBlock({() in self.spawnCrow()}) 
    var delay = SKAction.waitForDuration(NSTimeInterval(2.0)) 
    var spawnThenDelay = SKAction.sequence([spawn, delay]) 
    var spawnThenDelayForever = SKAction.repeatActionForever(spawnThenDelay) 
    self.runAction(spawnThenDelayForever) 

    self.addChild(crow) 

    // end of crow test 

    // crow func start 

    func spawnCrow() { 

     var crow = SKSpriteNode(texture: crowTexture1) 
     crow.position = CGPointMake(self.frame.size.width + crowTexture1.size().width * 2, 0); 
     crow.zPosition = 0; // previous value -10; 

     var height = UInt32(self.frame.size.height/3) 
     var y = arc4random() % height; 

     crow.position = CGPointMake(0.0, CGFloat(y)) 
     crow.physicsBody = SKPhysicsBody(circleOfRadius: 2.0) 
     crow.physicsBody!.dynamic = false 

     crow.addChild(crow) 

     crow.runAction(moveAndRemoveCrow) 

     crow.addChild(crow) 
    } 

    // crow func end 

    var groundTexture = SKTexture(imageNamed: "Ground") 
    groundTexture.filteringMode = SKTextureFilteringMode.Nearest 

    var moveGroundSprite = SKAction.moveByX(-groundTexture.size().width, y: 0, duration: NSTimeInterval(0.01 * groundTexture.size().width)) 
    var resetGroundSprite = SKAction.moveByX(groundTexture.size().width, y: 0, duration: 0.0) 
    var moveGroundSpritesForever = SKAction.repeatActionForever(SKAction.sequence([moveGroundSprite,resetGroundSprite])) 

    for var i:CGFloat = 0; i < 2 + self.frame.size.width/(groundTexture.size().width); ++i { 
     var sprite = SKSpriteNode(texture: groundTexture) 
     sprite.position = CGPointMake(i * sprite.size.width, sprite.size.height/2) 
     sprite.runAction(moveGroundSpritesForever) 
     self.addChild(sprite) 
    } 

    var dummy = SKNode() 
    dummy.position = CGPointMake(0, groundTexture.size().height/2) 
    dummy.physicsBody = SKPhysicsBody(rectangleOfSize: CGSizeMake(self.frame.size.width, groundTexture.size().height)) 
    dummy.physicsBody!.dynamic = false 
    self.addChild(dummy) 

     var skylineTexture = SKTexture(imageNamed: "Skyline") 
     skylineTexture.filteringMode = SKTextureFilteringMode.Nearest 

     var moveSkylineSprite = SKAction.moveByX(-skylineTexture.size().width, y: 0, duration: NSTimeInterval(0.1 * skylineTexture.size().width)) 
     var resetSkylineSprite = SKAction.moveByX(skylineTexture.size().width, y: 0, duration: 0.0) 
     var moveSkylineSpritesForever = SKAction.repeatActionForever(SKAction.sequence([moveSkylineSprite,resetSkylineSprite])) 

     for var i:CGFloat = 0; i < 2 + self.frame.size.width/(skylineTexture.size().width); ++i { 
      var sprite = SKSpriteNode(texture: skylineTexture) 
      sprite.zPosition = -20; 
      sprite.position = CGPointMake(i * sprite.size.width, sprite.size.height/2 + groundTexture.size().height) 
      sprite.runAction(moveSkylineSpritesForever) 
      self.addChild(sprite) 
    } 
} 

override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) { 
    /* Called when a touch begins */ 

    cat.physicsBody!.velocity = CGVectorMake(0, 0) 
    cat.physicsBody!.applyImpulse(CGVectorMake(0, 15)) 

} 

    func clamp(min: CGFloat, max: CGFloat, value: CGFloat) -> CGFloat { 
     if(value > max) { 
      return max; 
     } else if(value < min) { 
      return min; 
     } else { 
      return value; 
     } 

    } 


    override func update(currentTime: CFTimeInterval) { 
     /* Called before each frame is rendered */ 

    cat.zRotation = self.clamp(-1, max: 0.5, value: cat.physicsBody!.velocity.dy * (cat.physicsBody!.velocity.dy < 0 ? 0.003 : 0.001)); 
} 

}

Answer 1

上移声明spawnCrow外的当前功能方面的更新的内功能：

func yourMethod() { 
    func spawnCrow() { 

    } 

    var spawn = SKAction.runBlock({() in spawnCrow()}) 
} 

请注意，您实际上可以在两种情况下一起移除() in。