Question

我正在用两个按钮创建一个SKScene。

import UIKit
import SpriteKit

class IntroScene: SKScene {
  override func didMove(to view: SKView) {
    // BUTTON PLAY GAME
    let btnPlay = BtnPlay(normalTexture: defaultBtnTexture,
                          selectedTexture: selectedBtnTexture,
                          disabledTexture: nil)
    btnPlay.size = CGSize(width: 250, height: 75)
    btnPlay.position = CGPoint(x: frame.midX,y: frame.height/3*1)
    btnPlay.name = "btnPlay"
    btnPlay.setButtonAction(target: self, triggerEvent: .TouchUpInside, action: #selector(IntroScene.goToGameScene))
    print("BUTTON PLAY FRAME 1 ",btnPlay.frame)
    addChild(btnPlay)

    // BUTTON 'FIND PLAYERS'
    let btnFindPlayers = BtnFindPlayers(normalTexture: defaultBtnTexture,
                                        selectedTexture: selectedBtnTexture,
                                        disabledTexture: nil)

    btnFindPlayers.size = CGSize(width: 250, height: 75)
    btnFindPlayers.position = CGPoint(x: self.frame.midX,y: self.frame.height/3*2)
    btnFindPlayers.name = "btnFindPlayers"
    btnFindPlayers.setButtonAction(target: self, triggerEvent: .TouchUpInside, action: #selector(IntroScene.goToConnectVC))
    print("BUTTON FIND FRAME 1 ",btnFindPlayers.frame)
    addChild(btnFindPlayers)
  }

  @objc func goToGameScene() {
    print("Go to Game Scene")
  }

  @objc func goToConnectVC() {
    print("Go to Connect VC")
  }
}

这是按钮之一的自定义类。另一个类使用类似的方法：

import SpriteKit

class BtnPlay: SKSpriteNode {
  enum BtnPlayType: Int {
    case TouchUpInside = 1,TouchDown, TouchUp
  }

  var disabledTexture: SKTexture?
  var defaultTexture: SKTexture
  var selectedTexture: SKTexture
  var label: SKLabelNode

  var isEnabled: Bool = true {
    didSet {
        if disabledTexture != nil {
            texture = isEnabled ? defaultTexture : disabledTexture
        }
    }
  }

  var isSelected: Bool = false {
    didSet {
        texture = isSelected ? selectedTexture : defaultTexture
    }
  }

required init(coder: NSCoder) {
    fatalError("NSCoding not supported")
}

init(normalTexture defaultTexture: SKTexture!, selectedTexture:SKTexture!, disabledTexture: SKTexture?) {
    self.defaultTexture = defaultTexture
    self.selectedTexture = selectedTexture
    self.disabledTexture = disabledTexture
    self.label = SKLabelNode(fontNamed: "Helvetica");
    self.label.text = "PLAY"

    super.init(texture: defaultTexture, color: UIColor.white, size: defaultTexture.size())
    isUserInteractionEnabled = true

    self.label.verticalAlignmentMode = SKLabelVerticalAlignmentMode.center;
    self.label.horizontalAlignmentMode = SKLabelHorizontalAlignmentMode.center;
    addChild(self.label)

    let bugFixLayerNode = SKSpriteNode(texture: nil, color: UIColor.clear, size: defaultTexture.size())
    bugFixLayerNode.position = self.position
    addChild(bugFixLayerNode)
}

var actionTouchUpInside: Selector?
var actionTouchUp: Selector?
var actionTouchDown: Selector?
weak var targetTouchUpInside: AnyObject?
weak var targetTouchUp: AnyObject?
weak var targetTouchDown: AnyObject?

func setButtonAction(target: AnyObject, triggerEvent event:BtnPlayType, action:Selector) {
    switch (event) {
    case .TouchUpInside:
        targetTouchUpInside = target
        actionTouchUpInside = action
    case .TouchDown:
        targetTouchDown = target
        actionTouchDown = action
    case .TouchUp:
        targetTouchUp = target
        actionTouchUp = action
    }
}

func setButtonLabel(title: NSString, font: String, fontSize: CGFloat) {
    self.label.text = title as String
    self.label.fontSize = fontSize
    self.label.fontName = font
}

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    if !isEnabled { return }

    isSelected = true

    if (targetTouchDown != nil && targetTouchDown!.responds(to: actionTouchDown)) {
        UIApplication.shared.sendAction(actionTouchDown!, to: targetTouchDown, from: self, for: nil)
    }
}

override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {

    if !isEnabled { return }

    let touch: AnyObject! = touches.first
    let touchLocation = touch.location(in: parent!)

    if (frame.contains(touchLocation)) {
        isSelected = true
    } else {
        isSelected = false
    }

}

override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
    if !isEnabled { return }

    isSelected = false

    if (targetTouchUpInside != nil && targetTouchUpInside!.responds(to: actionTouchUpInside!)) {
        let touch: AnyObject! = touches.first
        let touchLocation = touch.location(in: parent!)

        if (frame.contains(touchLocation)) {
            UIApplication.shared.sendAction(actionTouchUpInside!, to: targetTouchUpInside, from: self, for: nil)
        }

        print("BUTTON PLAY FRAME ",frame)
        print("BUTTON PLAY TOUCHES ",touchLocation)
    }

    if (targetTouchUp != nil && targetTouchUp!.responds(to: actionTouchUp!)) {
        UIApplication.shared.sendAction(actionTouchUp!, to: targetTouchUp, from: self, for: nil)
    }
  }
}

创建场景和按钮就很好了。在顶部创建“查找播放器”按钮。问题是，当我点击下方的按钮（“播放”）时，什么也没发生。罪魁祸首是在屏幕上。每当我在屏幕上的任何地方点击时，除了屏幕的最下部，都会选择上方的按钮。因此，如果我点击下面的按钮，我仍然会在控制台上看到：

BUTTON FIND FRAME  (387.0, 474.5, 250.0, 75.0)
BUTTON FIND TOUCHES  (409.139404296875, 563.622131347656)

看起来上部按钮的框架比按钮本身大得多，并且叠加了下部按钮，让我无法点击它。

不知道为什么会这样。

如果有人可以提供帮助，我将不胜感激。

在SKScene上添加两个按钮：下按钮不起作用

0 个答案: