我想在SpriteKit或SKScene中创建一个按钮,将视图发送到另一个视图控制器.
我尝试使用“performSegue with identifier”,但显然SKScene不支持此功能.
如何使用SpriteKit创建一个将视图发送到另一个视图的按钮？
这是我尝试用来执行此操作的代码.
带有“HomeButton.prepareForSegueWithIdentifier()”的行只是一个例子.它实际上不会让我添加“prepareForSegue”部分,它不支持它< ---我的意思是,当我去添加它时,它是无法识别的.
class GameOverScene: SKScene {
var HomeButton: SKNode! = nil
init(size: CGSize,won: Bool) {
super.init(size: size)
backgroundColor = SKColor.whiteColor()
HomeButton = SKSpriteNode(color: SKColor.blueColor(),size: CGSize(width: 100,height: 100))
HomeButton.position = CGPointMake(CGRectGetMidX(self.frame),CGRectGetMidY(self.frame))
HomeButton.userInteractionEnabled = true
self.addChild(HomeButton)
let message = won ? "You Won!" : "You Lose!"
let label = SKLabelNode(fontNamed: "Title 1")
label.text = message
label.fontSize = 40
label.fontColor = SKColor.blackColor()
label.position = CGPoint(x: size.width/2,y: size.height/2)
addChild(label)
runAction(SKAction.sequence([SKAction.waitForDuration(3.0),SKAction.runBlock() {
let reveal = SKTransition.flipHorizontalWithDuration(0.5)
let scene = GameScene(size: size)
self.view?.presentScene(scene,transition: reveal)
}
]))
}
override func touchesEnded(touches: Set<UITouch>,withEvent event: UIEvent?) {
for touch: AnyObject in touches {
let location = touch.locationInNode(self)
if HomeButton.containsPoint(location) {
HomeButton.prepareForSegueWithIdentifier()
}
}
}
注意：我尝试过使用按钮,但它们不适用于SKScene.
如果有任何混淆,我会回应.
解决方法
如果你需要在SpriteKit中创建一个按钮,我认为这个按钮必须有所有或部分可用的动作来做任何你想做的事情(就像UIButton所做的那样)
在这里,您可以找到一个构建SpriteKit按钮的简单类,称为FTButtonNode：
class FTButtonNode: SKSpriteNode {
enum FTButtonActionType: Int {
case TouchUpInside = 1,TouchDown,TouchUp
}
var isEnabled: Bool = true {
didSet {
if (disabledTexture != nil) {
texture = isEnabled ? defaultTexture : disabledTexture
}
}
}
var isSelected: Bool = false {
didSet {
texture = isSelected ? selectedTexture : defaultTexture
}
}
var defaultTexture: SKTexture
var selectedTexture: SKTexture
var label: SKLabelNode
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");
super.init(texture: defaultTexture,color: UIColor.whiteColor(),size: defaultTexture.size())
userInteractionEnabled = true
//Creating and adding a blank label,centered on the button
self.label.verticalAlignmentMode = SKLabelVerticalAlignmentMode.Center;
self.label.horizontalAlignmentMode = SKLabelHorizontalAlignmentMode.Center;
addChild(self.label)
// Adding this node as an empty layer. Without it the touch functions are not being called
// The reason for this is unknown when this was implemented...?
let bugFixLayerNode = SKSpriteNode(texture: nil,color: UIColor.clearColor(),size: defaultTexture.size())
bugFixLayerNode.position = self.position
addChild(bugFixLayerNode)
}
/**
* Taking a target object and adding an action that is triggered by a button event.
*/
func setButtonAction(target: AnyObject,triggerEvent event:FTButtonActionType,action:Selector) {
switch (event) {
case .TouchUpInside:
targetTouchUpInside = target
actionTouchUpInside = action
case .TouchDown:
targetTouchDown = target
actionTouchDown = action
case .TouchUp:
targetTouchUp = target
actionTouchUp = action
}
}
/*
New function for setting text. Calling function multiple times does
not create a ton of new labels,just updates existing label.
You can set the title,font type and font size with this function
*/
func setButtonLabel(title: NSString,font: String,fontSize: CGFloat) {
self.label.text = title as String
self.label.fontSize = fontSize
self.label.fontName = font
}
var disabledTexture: SKTexture?
var actionTouchUpInside: Selector?
var actionTouchUp: Selector?
var actionTouchDown: Selector?
weak var targetTouchUpInside: AnyObject?
weak var targetTouchUp: AnyObject?
weak var targetTouchDown: AnyObject?
override func touchesBegan(touches: Set<UITouch>,withEvent event: UIEvent?) {
if (!isEnabled) {
return
}
isSelected = true
if (targetTouchDown != nil && targetTouchDown!.respondsToSelector(actionTouchDown!)) {
UIApplication.sharedApplication().sendAction(actionTouchDown!,to: targetTouchDown,from: self,forEvent: nil)
}
}
override func touchesMoved(touches: Set<UITouch>,withEvent event: UIEvent?) {
if (!isEnabled) {
return
}
let touch: AnyObject! = touches.first
let touchLocation = touch.locationInNode(parent!)
if (CGRectContainsPoint(frame,touchLocation)) {
isSelected = true
} else {
isSelected = false
}
}
override func touchesEnded(touches: Set<UITouch>,withEvent event: UIEvent?) {
if (!isEnabled) {
return
}
isSelected = false
if (targetTouchUpInside != nil && targetTouchUpInside!.respondsToSelector(actionTouchUpInside!)) {
let touch: AnyObject! = touches.first
let touchLocation = touch.locationInNode(parent!)
if (CGRectContainsPoint(frame,touchLocation) ) {
UIApplication.sharedApplication().sendAction(actionTouchUpInside!,to: targetTouchUpInside,forEvent: nil)
}
}
if (targetTouchUp != nil && targetTouchUp!.respondsToSelector(actionTouchUp!)) {
UIApplication.sharedApplication().sendAction(actionTouchUp!,to: targetTouchUp,forEvent: nil)
}
}
}
该来源于this Gist年提供
用法：
let backTexture: SKTexture! = SKTexture(image:"backBtn.png")
let backTextureSelected: SKTexture! = SKTexture(image:"backSelBtn.png")
let backBtn = FTButtonNode(normalTexture: backTexture,selectedTexture: backTextureSelected,disabledTexture: backTexture,size:backTexture.size())
backBtn.setButtonAction(self,triggerEvent: .TouchUpInside,action: #selector(GameScene.backBtnTap))
backBtn.position = CGPointMake(CGRectGetMidX(self.frame),CGRectGetMidY(self.frame))
backBtn.zPosition = 1
backBtn.name = "backBtn"
self.addChild(backBtn)
func backBtnTap() {
print("backBtnTap tapped")
// Here for example you can do:
let transition = SKTransition.fadeWithDuration(0.5)
let nextScene = MenuScene(size: self.scene!.size)
nextScene.scaleMode = .ResizeFill
self.scene?.view?.presentScene(nextScene,transition: transition)
}