Question

所以我得到了我的游戏，它有4个车道，从下到上，其中头盔在很长一段时间内永远产生。
我想检查产生的4个头盔中是否至少有一个包含我给他的物体这是我在Lane.swift中产生泳道的代码：

private func spawnRandomHelmet(){
        let helmet = HelmetNode(fruit: .random())
        helmet.delegate = self
        helmet.position = CGPoint(x: 0, y: 0 - helmet.size.height)
        addChild(helmet)

        let moveHelmetUp = SKAction.moveTo(y: self.size.height - 285 - (helmet.size.height - 100), duration: self.config.helmetSpeed)
        helmet.run(moveHelmetUp) {
            let moveHelmetToScreenEnd = SKAction.moveTo(y: self.size.height + helmet.size.height, duration: 0.5)
            let fadeOutHelmet = SKAction.fadeOut(withDuration: 0.5)
            let moveAndFadeOut = SKAction.group([moveHelmetToScreenEnd, fadeOutHelmet])
            helmet.run(moveAndFadeOut) {
                helmet.removeFromParent()
                self.delegate?.removed(helmet.fruit)
            }
        }
    }

    public func startSpawning() {
        let wait = SKAction.wait(forDuration: config.delayDuration, withRange: config.delayVariance)
        let spawnHelmet = SKAction.run(spawnRandomHelmet)
        let spawnSequence = SKAction.sequence([wait, spawnHelmet])
        let spawnForever = SKAction.repeatForever(spawnSequence)
        run(spawnForever)
    }

我在我的类GameScene.swift中调用该函数：

private func setUpLanes() {
    //Remove lanes from latest round
    for lane in [firstLane, secondLane, thirdLane, fourthLane] {
        lane.removeFromParent()
    }
    //Add lanes for current round
    for lane in [firstLane, secondLane, thirdLane, fourthLane] {
        lane.delegate = self
        addChild(lane)
        lane.startSpawning()
    }
}

如果一个头盔包含我正在寻找的对象，我不知道如何检查。每个产卵都有一个随机给头盔的物体这就是我将对象添加到头盔的方式：

class HelmetNode: SKSpriteNode {
weak var delegate: HelmetNodeDelegate?
let fruit: Fruit

init(fruit: Fruit) {
    self.fruit = fruit
    let texture = SKTexture(imageNamed: "helmet \(fruit.name)")
    let size = CGSize(width: 150, height: 250)
    super.init(texture: texture, color: .clear, size: size)
    isUserInteractionEnabled = true
    zPosition = 2
    anchorPoint = CGPoint(x: 0, y: 0)
}

required init?(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}

static func random(count: Int = 4) -> [HelmetNode] {
    var helmets: [HelmetNode] = []
    for _ in 1...count  {
        helmets.append(HelmetNode(fruit: .random()))
    }
    return helmets
}

Answer 1

如果要将对象添加为头盔的子项，请为对象添加名称

object.name = “special object”

然后运行：

for child in self.children {
    print(child.name)
}

当头盔产生时（但应在添加物体后）

影响随机产卵

1 个答案: