在SKScene中设置按钮
我发现UIButtons与SKScene的效果不佳，所以我试图将SKNode子类化为SpriteKit中的按钮。
我希望它的工作方式是，如果我在SKScene中初始化按钮并启用触摸事件，则按下该按钮将在SKScene中调用方法。
我很感激任何可以帮助我找到解决这个问题的建议。感谢。
17 个答案:
答案 0 :(得分：102)
您可以使用SKSpriteNode作为按钮，然后当用户触摸时，检查这是否是触摸的节点。使用SKSpriteNode的name属性来标识节点：
//fire button
- (SKSpriteNode *)fireButtonNode
{
SKSpriteNode *fireNode = [SKSpriteNode spriteNodeWithImageNamed:@"fireButton.png"];
fireNode.position = CGPointMake(fireButtonX,fireButtonY);
fireNode.name = @"fireButtonNode";//how the node is identified later
fireNode.zPosition = 1.0;
return fireNode;
}
将节点添加到场景中：
[self addChild: [self fireButtonNode]];
处理触摸：
//handle touch events
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [touches anyObject];
CGPoint location = [touch locationInNode:self];
SKNode *node = [self nodeAtPoint:location];
//if fire button touched, bring the rain
if ([node.name isEqualToString:@"fireButtonNode"]) {
//do whatever...
}
}
答案 1 :(得分：52)
我已经制作了自己的Button-Class，我正在使用它。 SKButton.h：
#import <SpriteKit/SpriteKit.h>
@interface SKButton : SKSpriteNode
@property (nonatomic, readonly) SEL actionTouchUpInside;
@property (nonatomic, readonly) SEL actionTouchDown;
@property (nonatomic, readonly) SEL actionTouchUp;
@property (nonatomic, readonly, weak) id targetTouchUpInside;
@property (nonatomic, readonly, weak) id targetTouchDown;
@property (nonatomic, readonly, weak) id targetTouchUp;
@property (nonatomic) BOOL isEnabled;
@property (nonatomic) BOOL isSelected;
@property (nonatomic, readonly, strong) SKLabelNode *title;
@property (nonatomic, readwrite, strong) SKTexture *normalTexture;
@property (nonatomic, readwrite, strong) SKTexture *selectedTexture;
@property (nonatomic, readwrite, strong) SKTexture *disabledTexture;
- (id)initWithTextureNormal:(SKTexture *)normal selected:(SKTexture *)selected;
- (id)initWithTextureNormal:(SKTexture *)normal selected:(SKTexture *)selected disabled:(SKTexture *)disabled; // Designated Initializer
- (id)initWithImageNamedNormal:(NSString *)normal selected:(NSString *)selected;
- (id)initWithImageNamedNormal:(NSString *)normal selected:(NSString *)selected disabled:(NSString *)disabled;
/** Sets the target-action pair, that is called when the Button is tapped.
"target" won't be retained.
*/
- (void)setTouchUpInsideTarget:(id)target action:(SEL)action;
- (void)setTouchDownTarget:(id)target action:(SEL)action;
- (void)setTouchUpTarget:(id)target action:(SEL)action;
@end
SKButton.m：
#import "SKButton.h"
#import <objc/message.h>
@implementation SKButton
#pragma mark Texture Initializer
/**
* Override the super-classes designated initializer, to get a properly set SKButton in every case
*/
- (id)initWithTexture:(SKTexture *)texture color:(UIColor *)color size:(CGSize)size {
return [self initWithTextureNormal:texture selected:nil disabled:nil];
}
- (id)initWithTextureNormal:(SKTexture *)normal selected:(SKTexture *)selected {
return [self initWithTextureNormal:normal selected:selected disabled:nil];
}
/**
* This is the designated Initializer
*/
- (id)initWithTextureNormal:(SKTexture *)normal selected:(SKTexture *)selected disabled:(SKTexture *)disabled {
self = [super initWithTexture:normal color:[UIColor whiteColor] size:normal.size];
if (self) {
[self setNormalTexture:normal];
[self setSelectedTexture:selected];
[self setDisabledTexture:disabled];
[self setIsEnabled:YES];
[self setIsSelected:NO];
_title = [SKLabelNode labelNodeWithFontNamed:@"Arial"];
[_title setVerticalAlignmentMode:SKLabelVerticalAlignmentModeCenter];
[_title setHorizontalAlignmentMode:SKLabelHorizontalAlignmentModeCenter];
[self addChild:_title];
[self setUserInteractionEnabled:YES];
}
return self;
}
#pragma mark Image Initializer
- (id)initWithImageNamedNormal:(NSString *)normal selected:(NSString *)selected {
return [self initWithImageNamedNormal:normal selected:selected disabled:nil];
}
- (id)initWithImageNamedNormal:(NSString *)normal selected:(NSString *)selected disabled:(NSString *)disabled {
SKTexture *textureNormal = nil;
if (normal) {
textureNormal = [SKTexture textureWithImageNamed:normal];
}
SKTexture *textureSelected = nil;
if (selected) {
textureSelected = [SKTexture textureWithImageNamed:selected];
}
SKTexture *textureDisabled = nil;
if (disabled) {
textureDisabled = [SKTexture textureWithImageNamed:disabled];
}
return [self initWithTextureNormal:textureNormal selected:textureSelected disabled:textureDisabled];
}
#pragma -
#pragma mark Setting Target-Action pairs
- (void)setTouchUpInsideTarget:(id)target action:(SEL)action {
_targetTouchUpInside = target;
_actionTouchUpInside = action;
}
- (void)setTouchDownTarget:(id)target action:(SEL)action {
_targetTouchDown = target;
_actionTouchDown = action;
}
- (void)setTouchUpTarget:(id)target action:(SEL)action {
_targetTouchUp = target;
_actionTouchUp = action;
}
#pragma -
#pragma mark Setter overrides
- (void)setIsEnabled:(BOOL)isEnabled {
_isEnabled = isEnabled;
if ([self disabledTexture]) {
if (!_isEnabled) {
[self setTexture:_disabledTexture];
} else {
[self setTexture:_normalTexture];
}
}
}
- (void)setIsSelected:(BOOL)isSelected {
_isSelected = isSelected;
if ([self selectedTexture] && [self isEnabled]) {
if (_isSelected) {
[self setTexture:_selectedTexture];
} else {
[self setTexture:_normalTexture];
}
}
}
#pragma -
#pragma mark Touch Handling
/**
* This method only occurs, if the touch was inside this node. Furthermore if
* the Button is enabled, the texture should change to "selectedTexture".
*/
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
if ([self isEnabled]) {
objc_msgSend(_targetTouchDown, _actionTouchDown);
[self setIsSelected:YES];
}
}
/**
* If the Button is enabled: This method looks, where the touch was moved to.
* If the touch moves outside of the button, the isSelected property is restored
* to NO and the texture changes to "normalTexture".
*/
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
if ([self isEnabled]) {
UITouch *touch = [touches anyObject];
CGPoint touchPoint = [touch locationInNode:self.parent];
if (CGRectContainsPoint(self.frame, touchPoint)) {
[self setIsSelected:YES];
} else {
[self setIsSelected:NO];
}
}
}
/**
* If the Button is enabled AND the touch ended in the buttons frame, the
* selector of the target is run.
*/
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [touches anyObject];
CGPoint touchPoint = [touch locationInNode:self.parent];
if ([self isEnabled] && CGRectContainsPoint(self.frame, touchPoint)) {
objc_msgSend(_targetTouchUpInside, _actionTouchUpInside);
}
[self setIsSelected:NO];
objc_msgSend(_targetTouchUp, _actionTouchUp);
}
示例：要初始化按钮，请编写以下行：
SKButton *backButton = [[SKButton alloc] initWithImageNamedNormal:@"buttonNormal" selected:@"buttonSelected"];
[backButton setPosition:CGPointMake(100, 100)];
[backButton.title setText:@"Button"];
[backButton.title setFontName:@"Chalkduster"];
[backButton.title setFontSize:20.0];
[backButton setTouchUpInsideTarget:self action:@selector(buttonAction)];
[self addChild:backButton];
此外，您需要在班级中使用'buttonAction'方法。 *不保证本课程在每种情况下都能正常使用。我对Objective-c还很新。 *
如果您认为必须这样做是烦人且毫无意义的，您可以通过设置“启用严格检查objc_msgSend Calls'至No”
答案 2 :(得分：19)
对于在Swift中编写游戏的人们！ 我已经将格拉夫解决方案的基本部分重写为快速课程。希望它有所帮助：
import Foundation
import SpriteKit
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
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
super.init(texture: defaultTexture, color: UIColor.whiteColor(), size: defaultTexture.size())
userInteractionEnabled = true
// 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: nil, 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
}
}
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: NSSet!, withEvent event: UIEvent!) {
let touch: AnyObject! = touches.anyObject()
let touchLocation = touch.locationInNode(parent)
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: NSSet!, withEvent event: UIEvent!) {
if (!isEnabled) {
return
}
let touch: AnyObject! = touches.anyObject()
let touchLocation = touch.locationInNode(parent)
if (CGRectContainsPoint(frame, touchLocation)) {
isSelected = true
} else {
isSelected = false
}
}
override func touchesEnded(touches: NSSet!, withEvent event: UIEvent!) {
if (!isEnabled) {
return
}
isSelected = false
if (targetTouchUpInside != nil && targetTouchUpInside!.respondsToSelector(actionTouchUpInside!)) {
let touch: AnyObject! = touches.anyObject()
let touchLocation = touch.locationInNode(parent)
if (CGRectContainsPoint(frame, touchLocation) ) {
UIApplication.sharedApplication().sendAction(actionTouchUpInside!, to: targetTouchUpInside, from: self, forEvent: nil)
}
}
if (targetTouchUp != nil && targetTouchUp!.respondsToSelector(actionTouchUp!)) {
UIApplication.sharedApplication().sendAction(actionTouchUp!, to: targetTouchUp, from: self, forEvent: nil)
}
}
}
答案 3 :(得分：5)
如果您愿意，可以使用UIButton（或任何其他UIView）。
创建SKScene时，SKView中尚不存在didMoveToView:。您应该在SKScene子类上实现SKView。此时，您可以访问放置场景的UIKit，并可以向其添加- (void)didMoveToView:(SKView *)view {
UIView *b = [self _createButton]; // <-- performs [self.view addSubview:button]
// create other UI elements, also add them to the list to remove …
self.customSubviews = @[b];
b.alpha = 0;
[UIView animateWithDuration:0.4
delay:2.4
options:UIViewAnimationOptionCurveEaseIn
animations:^{
b.alpha = 1;
} completion:^(BOOL finished) {
;
}];
}
个对象。为了美观，我褪色了......
- (void)removeCustomSubviews {
for (UIView *v in self.customSubviews) {
[UIView animateWithDuration:0.2
delay:0
options:UIViewAnimationOptionCurveEaseIn
animations:^{
v.alpha = 0;
} completion:^(BOOL finished) {
[v removeFromSuperview];
}];
}
}
当你过渡时，你需要故意将它们从场景中移除，除非它们完全有意义留在那里。
UIButton对于那些不熟悉以编程方式创建- (UIButton *)_createButton {
UIButton *b = [UIButton buttonWithType:UIButtonTypeCustom];
[b setTitle:@"Continue" forState:UIControlStateNormal];
[b setBackgroundImage:[UIImage imageNamed:@"GreenButton"] forState:UIControlStateNormal];
[b setBackgroundImage:[UIImage imageNamed:@"GreenButtonSelected"] forState:UIControlStateHighlighted];
b.titleLabel.adjustsFontSizeToFitWidth = YES;
b.titleLabel.font = [UIFont fontWithName:@"HelveticaNeue-Bold" size:36];
b.frame = CGRectMake(self.size.width * .7, self.size.height * .2, self.size.width * .2, self.size.height * .1);
[b addTarget:self action:@selector(continuePlay) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:b];
return b;
}
的人，这里有一个例子（你可以在这里做100件事）......
UIView提醒：SKScene来源位于左上方，{{1}}来源位于左下方。
答案 4 :(得分：3)
我在Graf使用了SKButton类。
我使用SKButton进行场景导航。即当用户按下SKButton时出现另一个场景。我在EXC_BAD_ACCESS处收到touchesEnded->[self setIsSelected:NO]错误。这种情况在最新的具有快速CPU的iPad上经常发生。
在检查和排除故障后，我意识到在调用setIsSelected函数时，SKButton对象已经“解除分配”。这是因为我使用SKButton导航到下一个场景，这也意味着可以随时取消分配当前场景。
我通过将setIsSelected放在“else”部分中进行了一些小改动，如下所示。
希望这对其他也看到相同错误的开发人员有帮助。
(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [touches anyObject];
CGPoint touchPoint = [touch locationInNode:self.parent];
if ([self isEnabled] && CGRectContainsPoint(self.frame, touchPoint)) {
objc_msgSend(_targetTouchUpInside, _actionTouchUpInside);
} else {
[self setIsSelected:NO];
}
objc_msgSend(_targetTouchUp, _actionTouchUp);
}
答案 5 :(得分：2)
编辑：我已经为我的SKButtonNode创建了一个github repo，我希望能够保持最新状态并快速进化！
不幸的是，我还没有评论菲利普在Swift中迅速实施SKButton。非常高兴他在Swift中做到了这一点！但是，我注意到他没有包含向按钮添加文本的功能。这对我来说是一个巨大的功能，因此您不必为每个按钮创建单独的资源，而只需为背景创建单独的资源并添加动态文本。
我添加了一个简单的函数来向SKButton添加文本标签。它可能并不完美 - 我和其他人一样对Swift很新！随意评论，并帮助我尽可能地更新这个。希望你们喜欢！
//Define label with the textures
var defaultTexture: SKTexture
var selectedTexture: SKTexture
//New defining of label
var label: SKLabelNode
//Updated init() function:
init(normalTexture defaultTexture: SKTexture!, selectedTexture:SKTexture!, disabledTexture: SKTexture?) {
self.defaultTexture = defaultTexture
self.selectedTexture = selectedTexture
self.disabledTexture = disabledTexture
//New initialization of label
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: nil, size: defaultTexture.size())
bugFixLayerNode.position = self.position
addChild(bugFixLayerNode)
}
/*
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) {
var title = title
var font = font
var fontSize = fontSize
self.label.text = title
self.label.fontSize = fontSize
self.label.fontName = font
}
创建按钮示例：
var buttonTexture = SKTexture(imageNamed: "Button");
var buttonPressedTexture = SKTexture(imageNamed: "Button Pressed");
var button = SKButton(normalTexture:buttonTexture, selectedTexture:buttonPressedTexture, disabledTexture:buttonPressedTexture);
button.setButtonLabel(title: "Play",font: "Helvetica",fontSize: 40);
button.position = CGPointMake(self.frame.size.width/2, self.frame.size.height/2);
self.addChild(button);
下面列出的全班：
import Foundation
import SpriteKit
class SKButton: 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
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: nil, 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
}
}
func setButtonLabel(#title: NSString, font: String, fontSize: CGFloat) {
var title = title;
var font = font;
var fontSize = fontSize;
self.label.text = title;
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: NSSet!, withEvent event: UIEvent!) {
let touch: AnyObject! = touches.anyObject()
let touchLocation = touch.locationInNode(parent)
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: NSSet!, withEvent event: UIEvent!) {
if (!isEnabled) {
return
}
let touch: AnyObject! = touches.anyObject()
let touchLocation = touch.locationInNode(parent)
if (CGRectContainsPoint(frame, touchLocation)) {
isSelected = true
} else {
isSelected = false
}
}
override func touchesEnded(touches: NSSet!, withEvent event: UIEvent!) {
if (!isEnabled) {
return
}
isSelected = false
if (targetTouchUpInside != nil && targetTouchUpInside!.respondsToSelector(actionTouchUpInside!)) {
let touch: AnyObject! = touches.anyObject()
let touchLocation = touch.locationInNode(parent)
if (CGRectContainsPoint(frame, touchLocation) ) {
UIApplication.sharedApplication().sendAction(actionTouchUpInside!, to: targetTouchUpInside, from: self, forEvent: nil)
}
}
if (targetTouchUp != nil && targetTouchUp!.respondsToSelector(actionTouchUp!)) {
UIApplication.sharedApplication().sendAction(actionTouchUp!, to: targetTouchUp, from: self, forEvent: nil)
}
}
}
答案 6 :(得分：2)
这是另一个基于Filip的Swift代码的版本。我只是将它简化了一点，并允许它采用块而不是仅选择器：
import Foundation
import SpriteKit
enum FTButtonTarget {
case aSelector(Selector, AnyObject)
case aBlock(() -> Void)
}
class FTButtonNode: SKSpriteNode {
var actionTouchUp : FTButtonTarget?
var actionTouchUpInside : FTButtonTarget?
var actionTouchDown : FTButtonTarget?
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
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
super.init(texture: defaultTexture, color: UIColor.whiteColor(), size: defaultTexture.size())
userInteractionEnabled = true
// 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: nil, size: defaultTexture.size())
bugFixLayerNode.position = self.position
addChild(bugFixLayerNode)
}
var disabledTexture: SKTexture?
func callTarget(buttonTarget:FTButtonTarget) {
switch buttonTarget {
case let .aSelector(selector, target):
if target.respondsToSelector(selector) {
UIApplication.sharedApplication().sendAction(selector, to: target, from: self, forEvent: nil)
}
case let .aBlock(block):
block()
}
}
override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
let touch: AnyObject! = touches.anyObject()
let touchLocation = touch.locationInNode(parent)
if (!isEnabled) {
return
}
isSelected = true
if let act = actionTouchDown {
callTarget(act)
}
}
override func touchesMoved(touches: NSSet, withEvent event: UIEvent) {
if (!isEnabled) {
return
}
let touch: AnyObject! = touches.anyObject()
let touchLocation = touch.locationInNode(parent)
if (CGRectContainsPoint(frame, touchLocation)) {
isSelected = true
} else {
isSelected = false
}
}
override func touchesEnded(touches: NSSet, withEvent event: UIEvent) {
if (!isEnabled) {
return
}
isSelected = false
let touch: AnyObject! = touches.anyObject()
let touchLocation = touch.locationInNode(parent)
if (CGRectContainsPoint(frame, touchLocation) ) {
if let act = actionTouchUpInside {
callTarget(act)
}
}
if let act = actionTouchUp {
callTarget(act)
}
}
}
像这样使用：
aFTButton.actionTouchUpInside = FTButtonTarget.aBlock({ () -> Void in
println("button touched")
})
希望这有帮助。
答案 7 :(得分：2)
这个问题有很多很棒的解决方案！对于那些能够实现这一目标的硬核卷轴，您可以享受一下！我已经将SKScene子类化了，它需要一个函数调用来注册ANY节点，就像UIButton一样！这是班级：
class KCScene : SKScene {
//------------------------------------------------------------------------------------
//This function is the only thing you use in this class!!!
func addButton(_ node:SKNode, withCompletionHandler handler: @escaping ()->()) {
let data = ButtonData(button: node, actionToPerform: handler)
eligibleButtons.append(data)
}
//------------------------------------------------------------------------------------
private struct ButtonData {
//TODO: make a dictionary with ()->() as the value and SKNode as the key.
//Then refactor this class!
let button:SKNode
let actionToPerform:()->()
}
private struct TouchTrackingData {
//this will be in a dictionary with a UITouch object as the key
let button:SKNode
let originalButtonFrame:CGRect
}
private var eligibleButtons = [ButtonData]()
private var trackedTouches = [UITouch:TouchTrackingData]()
//------------------------------------------------------------------------------------
//TODO: make these functions customizable,
//with these implementations as defaults.
private func applyTouchedDownEffectToNode(node:SKNode) {
node.alpha = 0.5
node.xScale = 0.8
node.yScale = 0.8
}
private func applyTouchedUpEffectToNode(node:SKNode) {
node.alpha = 1
node.xScale = 1
node.yScale = 1
}
//------------------------------------------------------------------------------------
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
for touch in touches {
let touchLocation = touch.location(in: self)
let touchedNode = atPoint(touchLocation)
for buttonData in eligibleButtons {
if touchedNode === buttonData.button {
//then this touch needs to be tracked, as it touched down on an eligible button!
for (t, bD) in trackedTouches {
if bD.button === buttonData.button {
//then this button was already being tracked by a previous touch, disable the previous touch
trackedTouches[t] = nil
}
}
//start tracking this touch
trackedTouches[touch] = TouchTrackingData(button: touchedNode, originalButtonFrame: touchedNode.frameInScene)
applyTouchedDownEffectToNode(node: buttonData.button)
}
}
}
}
//------------------------------------------------------------------------------------
override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
for touch in touches {
if trackedTouches[touch] == nil {continue}
//Now we know this touch is being tracked...
let touchLocation = touch.location(in: self)
//TODO: implement an isBeingTouched property on TouchTrackingData, so
//applyTouchedDown(Up)Effect doesn't have to be called EVERY move the touch makes
if trackedTouches[touch]!.originalButtonFrame.contains(touchLocation) {
//if this tracked touch is touching its button
applyTouchedDownEffectToNode(node: trackedTouches[touch]!.button)
} else {
applyTouchedUpEffectToNode(node: trackedTouches[touch]!.button)
}
}
}
//------------------------------------------------------------------------------------
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
for touch in touches {
if trackedTouches[touch] == nil {continue}
//Now we know this touch is being tracked...
let touchLocation = touch.location(in: self)
if trackedTouches[touch]!.originalButtonFrame.contains(touchLocation) {
applyTouchedUpEffectToNode(node: trackedTouches[touch]!.button)
for buttonData in eligibleButtons {
if buttonData.button === trackedTouches[touch]!.button {
buttonData.actionToPerform()
}
}
}
trackedTouches[touch] = nil
}
}
//------------------------------------------------------------------------------------
override func touchesCancelled(_ touches: Set<UITouch>?, with event: UIEvent?) {
for touch in touches! {
if trackedTouches[touch] == nil {continue}
//Now we know this touch is being tracked...
//Since this touch was cancelled, it will not be activating a button,
//and it is not worth checking where the touch was
//we will simply apply the touched up effect regardless and remove the touch from being tracked
applyTouchedUpEffectToNode(node: trackedTouches[touch]!.button)
trackedTouches[touch] = nil
}
}
//------------------------------------------------------------------------------------
}
它包含了我尚未实现的许多想法以及代码的一些解释，但只需将其复制并粘贴到您的项目中，您就可以在自己的场景中使用它。以下是一个完整的示例用法：
class GameScene : KCScene {
var playButton:SKSpriteNode
override init(size:CGSize) {
playButton = SKSpriteNode(color: SKColor.red, size: CGSize(width:200,height:200))
playButton.position.x = size.width/2
playButton.position.y = size.height*0.75
super.init(size: size)
}
override func didMove(to view: SKView) {
addChild(playButton)
addButton(playButton, withCompletionHandler: playButtonPushed)
}
func playButtonPushed() {
let scene = GameScene(size: CGSize(width: 768, height: 1024))
scene.scaleMode = .aspectFill
view!.presentScene(scene)
}
}
唯一需要注意的是，如果您实施touchesBegan，touchesMoved，touchesEnded和/或touchesCancelled，您必须致电！否则它将无效。
请注意，在该示例中，您只需要一行代码即可提供任何节点UIButton特征！就是这条线：
addButton(playButton, withCompletionHandler: playButtonPushed)
我总是乐于接受想法和建议。在评论和快乐编码中留下＆＃39;
哎呀，我忘了提到我使用这个漂亮的扩展。您可以将其从扩展中取出（因为您可能不需要在每个节点中使用它）并将其放入我的课程中。我只在一个地方使用它。extension SKNode {
var frameInScene:CGRect {
if let scene = scene, let parent = parent {
let rectOriginInScene = scene.convert(frame.origin, from: parent)
return CGRect(origin: rectOriginInScene, size: frame.size)
}
return frame
}
}
答案 8 :(得分：1)
我的解决方案是使用闭包完全在SWIFT中编写的。
它非常简单易用！ https://github.com/txaidw/TWControls
class Test {
var testProperty = "Default String"
init() {
let control = TWButton(normalColor: SKColor.blueColor(), highlightedColor: SKColor.redColor(), size: CGSize(width: 160, height: 80))
control.position = CGPoint(x: CGRectGetMidX(self.frame), y: CGRectGetMidY(self.frame))
control.position.allStatesLabelText = "PLAY"
control.addClosureFor(.TouchUpInside, target: self, closure: { (scene, sender) -> () in
scene.testProperty = "Changed Property"
})
}
deinit { println("Class Released..") }
}
答案 9 :(得分：0)
这是用现代Swift（4.1.2）编写的简单按钮
功能
- 它接受2个图像名称，其中1个为默认状态，一个为活动状态
- 开发人员可以设置
touchBeganCallback和touchEndedCallback闭包以添加自定义行为
代码
import SpriteKit
class SpriteKitButton: SKSpriteNode {
private let textureDefault: SKTexture
private let textureActive: SKTexture
init(defaultImageNamed: String, activeImageNamed:String) {
textureDefault = SKTexture(imageNamed: defaultImageNamed)
textureActive = SKTexture(imageNamed: activeImageNamed)
super.init(texture: textureDefault, color: .clear, size: textureDefault.size())
self.isUserInteractionEnabled = true
}
required init?(coder aDecoder: NSCoder) {
fatalError("Not implemented")
}
var touchBeganCallback: (() -> Void)?
var touchEndedCallback: (() -> Void)?
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
self.texture = textureActive
touchBeganCallback?()
}
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
self.texture = textureDefault
touchEndedCallback?()
}
}
使用方法
class GameScene: SKScene {
override func didMove(to view: SKView) {
// 1. create the button
let button = SpriteKitButton(defaultImageNamed: "default", activeImageNamed: "active")
// 2. write what should happen when the button is tapped
button.touchBeganCallback = {
print("Touch began")
}
// 3. write what should happen when the button is released
button.touchEndedCallback = {
print("Touch ended")
}
// 4. add the button to the scene
addChild(button)
}
}
答案 10 :(得分：0)
不幸的是SpriteKit没有按钮节点，我不知道为什么，因为它是非常有用的控件。所以我决定创建自己的并通过CocoaPods分享，请使用它OOButtonNode。
按钮可以使用用Swift 4编写的文本/背景或图像。
答案 11 :(得分：0)
我不相信上述任何选项，因此基于我创建的最新Swift4 
。
答案 12 :(得分：0)
实际上这在 Xcode 7.3
Swift 2.2 上工作得很好我喜欢 FTButtonNode （richy486/FTButtonNode.swift ），但是在初始化期间无法直接指定其他尺寸（而不是默认纹理尺寸），所以我添加了这个简单的方法：
您必须在官方自定义init方法下复制它（类似于此），以便您使用另一个init方法：
init(normalTexture defaultTexture: SKTexture!, selectedTexture:SKTexture!, disabledTexture: SKTexture?, size:CGSize) {
self.defaultTexture = defaultTexture
self.selectedTexture = selectedTexture
self.disabledTexture = disabledTexture
self.label = SKLabelNode(fontNamed: "Helvetica");
super.init(texture: defaultTexture, color: UIColor.whiteColor(), size: 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: size)
bugFixLayerNode.position = self.position
addChild(bugFixLayerNode)
}
另一个重要的事情是＆＃34;选择时间＆＃34;我已经看到在touchesBegan和touchesEnded之间的某个时间新设备（iPhone 6）中很快，您看不到defaultTexture和selectedTexture之间的变化。
使用此功能：
func dispatchDelay(delay:Double, closure:()->()) {
dispatch_after(
dispatch_time(
DISPATCH_TIME_NOW,
Int64(delay * Double(NSEC_PER_SEC))
),
dispatch_get_main_queue(), closure)
}
您可以重新编写touchesEnded方法以正确显示纹理变化：
override func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {
if (!isEnabled) {
return
}
dispatchDelay(0.2) {
self.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, from: self, forEvent: nil)
}
}
if (targetTouchUp != nil && targetTouchUp!.respondsToSelector(actionTouchUp!)) {
UIApplication.sharedApplication().sendAction(actionTouchUp!, to: targetTouchUp, from: self, forEvent: nil)
}
}
答案 13 :(得分：0)
格拉夫的解决方案有一个问题。 例如：
self.pauseButton = [[AGSKBButtonNode alloc] initWithImageNamed:@"ButtonPause"];
self.pauseButton.position = CGPointMake(0, 0);
[self.pauseButton setTouchUpInsideTarget:self action:@selector(pauseButtonPressed)];
[_hudLayer addChild:_pauseButton];
_hudLayer是一个SKNode，是我场景的属性。所以，你会得到例外，因为SKButton中的方法touchesEnded。它将调用[SKSpriteNode pauseButtonPressed]，而不是场景。
将self.parent更改为触摸目标的解决方案：
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [touches anyObject];
CGPoint touchPoint = [touch locationInNode:self.parent];
if ([self isEnabled] && CGRectContainsPoint(self.frame, touchPoint)) {
if (_actionTouchUpInside){
[_targetTouchUpInside performSelectorOnMainThread:_actionTouchUpInside withObject:_targetTouchUpInside waitUntilDone:YES];
}
}
[self setIsSelected:NO];
if (_actionTouchUp){
[_targetTouchUp performSelectorOnMainThread:_actionTouchUp withObject:_targetTouchUp waitUntilDone:YES];
}}
答案 14 :(得分：0)
我已经将SKScene类子类化，并解决了在这个项目中解决按钮点击的问题。
https://github.com/Prasad9/SpriteKitButton
在其中，应该命名在点击时必须知道的所有节点。
除了检测按钮点击之外，该项目还可以检测特定节点上的触摸是否已经开始或结束。
要获取点按操作，请在场景文件中覆盖以下方法。
- (void)touchUpInsideOnNodeName:(NSString *)nodeName atPoint:(CGPoint)touchPoint {
// Your code here.
}
要了解特定身体的触摸开始，请在场景文件中覆盖以下方法。
- (void)touchBeginOnNodeName:(NSString *)nodeName {
// Your code here.
}
要了解特定正文的触摸结束，请在Scene文件中覆盖以下方法。
- (void)touchEndedOnNodeName:(NSString *)nodeName {
// Your code here.
}
答案 15 :(得分：0)
由于我们所有人都没有针对iOS，这里是我编写的用于处理Mac鼠标交互的一些代码的开头。
大师的问题：MacOS在使用触控板时是否提供触控事件？或者这些是作为鼠标事件发送到SpriteKit的？
大师们的另一个问题，不应该将这个类称为SKButton Node 吗？
无论如何，试试这个......
#if os(iOS)
override func touchesBegan(touches: NSSet!, withEvent event: UIEvent!) {
let touch: AnyObject! = touches.anyObject()
let touchLocation = touch.locationInNode(parent)
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: NSSet!, withEvent event: UIEvent!) {
if (!isEnabled) { return }
let touch: AnyObject! = touches.anyObject()
let touchLocation = touch.locationInNode(parent)
if (CGRectContainsPoint(frame, touchLocation)) {
isSelected = true
} else {
isSelected = false
}
}
override func touchesEnded(touches: NSSet!, withEvent event: UIEvent!) {
if (!isEnabled) { return }
isSelected = false
if (targetTouchUpInside != nil && targetTouchUpInside!.respondsToSelector(actionTouchUpInside!)) {
let touch: AnyObject! = touches.anyObject()
let touchLocation = touch.locationInNode(parent)
if (CGRectContainsPoint(frame, touchLocation) ) {
UIApplication.sharedApplication().sendAction(actionTouchUpInside!, to: targetTouchUpInside, from: self, forEvent: nil)
}
}
if (targetTouchUp != nil && targetTouchUp!.respondsToSelector(actionTouchUp!)) {
UIApplication.sharedApplication().sendAction(actionTouchUp!, to: targetTouchUp, from: self, forEvent: nil)
}
}
#else
// FIXME: needs support for mouse enter and leave, turning on and off selection
override func mouseDown(event: NSEvent) {
if (!isEnabled) { return }
if (targetTouchDown != nil && targetTouchDown!.respondsToSelector(actionTouchDown!)) {
NSApplication.sharedApplication().sendAction(actionTouchDown!, to: targetTouchDown, from: self)
}
}
override func mouseUp(event: NSEvent) {
if (!isEnabled) { return }
if (targetTouchUpInside != nil && targetTouchUpInside!.respondsToSelector(actionTouchUpInside!)) {
let touchLocation = event.locationInNode(parent)
if (CGRectContainsPoint(frame, touchLocation) ) {
NSApplication.sharedApplication().sendAction(actionTouchUpInside!, to: targetTouchUpInside, from: self)
}
}
if (targetTouchUp != nil && targetTouchUp!.respondsToSelector(actionTouchUp!)) {
NSApplication.sharedApplication().sendAction(actionTouchUp!, to: targetTouchUp, from: self)
}
}
#endif
答案 16 :(得分：0)
我刚刚创建了一个使用SKSpriteNode作为按钮的类。你可以在GitHub上找到它。
它的实现基于UIButton，所以如果你已经熟悉iOS，你会发现它很容易使用。
按下按钮时，也可以指定要执行的块或SKAction。
它还包括一种设置标签的方法。
按钮通常会这样声明：
AGSpriteButton *button = [AGSpriteButton buttonWithColor:[UIColor redColor] andSize:CGSizeMake(300, 100)];
[button setLabelWithText:@"Button Text" andFont:nil withColor:nil];
button.position = CGPointMake(self.size.width / 2, self.size.height / 3);
[button addTarget:self selector:@selector(someSelector) withObject:nil forControlEvent:AGButtonControlEventTouchUpInside];
[self addChild:button];
就是这样。你很高兴。
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