Swift 检测 SKNode 是否是自定义 class 的属性

Question

您好，我有一个自定义 class，Ship，它有一个属性 'Parrent'，它是一个 SKNode。当 class 被初始化时，一堆节点被添加到 'Parrent' 中，构成了 class 飞船的外观。 'Ship' 有一种方法 'Explode' 可以向不同方向射击所有节点。这部分效果很好，关于我的问题。

我试图让飞船在我接触到它们时爆炸，但我无法通过 'Ship' 爆炸。现在，当我触摸时，我使用 nodeAtPoint 但这只会让我成为外观节点之一。从那里我需要一种方法将父节点向上移动到 'Parrent' 节点，然后从那里向上移动到整个 Ship 对象。

AKA touch->nodeAtPoint->Appearance node->.parrent->'Parrent'->（卡在这里）->Ship->Ship.explode

我希望我正在努力完成的事情有意义，感谢您的帮助。

飞船class：

class Ship: NSObject {
var Position: CGPoint!
var Scene: SKNode!
var Parrent = SKNode();
let Parts = [
    SKSpriteNode(imageNamed: "Ship/Ship1.png"),
    SKSpriteNode(imageNamed: "Ship/Ship2.png"),
    SKSpriteNode(imageNamed: "Ship/Ship3.png"),
    SKSpriteNode(imageNamed: "Ship/Ship4.png"),
    SKSpriteNode(imageNamed: "Ship/Ship5.png"),
    SKSpriteNode(imageNamed: "Ship/Ship6.png"),
];

init(position : CGPoint, parrent : SKNode, scaleFactor: CGFloat) {
    self.Position = position;
    self.Scene =  parrent;

    self.Parrent.position = self.Position
    var x = 0;
    for part in Parts {
        x++;
        part.xScale = scaleFactor
        part.yScale = abs(scaleFactor)
        part.physicsBody = SKPhysicsBody(texture: SKTexture(imageNamed: "Ship/Ship\(x).png"), size: part.size)
        part.physicsBody?.collisionBitMask = PhysicsCategory.Ship
        part.physicsBody?.categoryBitMask = PhysicsCategory.Something
        part.position = CGPoint(x: 0, y: 0)
        self.Parrent.addChild(part)
    }
    self.Scene.addChild(self.Parrent)
}

//other functions including explode
}

触摸开始于 SKScene

override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {

    for touch: AnyObject in touches {
        let location = touch.locationInNode(self)
        let targetShip = nodeAtPoint(location)
        let targetParrent = targetShip.parent
        //decide if it is a 'Ship' here
    }
}

谢谢！我非常感谢任何帮助！

Answer 1

这终于奏效了。我将飞船 class 更改为从 SKNode 继承并开始编辑触摸：

override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {

    for touch: AnyObject in touches {
        let location = touch.locationInNode(self)
        let targetShip = nodeAtPoint(location)
        if targetShip.isMemberOfClass(Ship){
            print("Ship")
            Ship1.shootLazer(targetShip as! Ship)
        }else if targetShip.parent!.isMemberOfClass(Ship){
            print("Ship parrent")
            Ship1.shootLazer(targetShip.parent! as! Ship)
        }
    }
}

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