entityMap|0|type|LINK|mutability|MUTABLE|data|url|https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIPanGestureRecognizer_Class/#//apple_ref/occ/instm/UIPanGestureRecognizer/translationInView:|1|https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIPanGestureRecognizer_Class/#//apple_ref/occ/instp/UIPanGestureRecognizer/maximumNumberOfTouches|2|https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIPanGestureRecognizer_Class/#//apple_ref/occ/instp/UIPanGestureRecognizer/minimumNumberOfTouches|blocks|key|7qagr|text|首先，您必须创建UIPanGestureRecognizer。然后将其添加到场景的视图中。在手势识别器的action方法中，可以使用translationInView:。在此基础上，您可以修改摄像头的position。|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|2gsss|此外，在创建手势识别器时，您可以通过maximumNumberOfTouches:和minimumNumberOfTouches:配置触摸次数。|d70qm^0|8|M|1G|6|2S|8|1U|I|0|0|I|N|1|16|N|2|0^^$0|$1|$2|3|4|5|6|$7|8]]|9|$2|3|4|5|6|$7|A]]|B|$2|3|4|5|6|$7|C]]]|D|@$E|F|G|H|2|I|J|T|K|@$L|U|M|V|N|O]|$L|W|M|X|N|O]|$L|Y|M|Z|N|O]]|P|@$L|10|M|11|E|12]]|6|$]]|$E|Q|G|R|2|I|J|13|K|@]|P|@$L|14|M|15|E|16]|$L|17|M|18|E|19]]|6|$]]|$E|S|G|-4|2|I|J|1A|K|@]|P|@]|6|$]]]]

First you have to create <code>UIPanGestureRecognizer</code>. Then add it to the view of your scene. In your <code>action</code> method of the gesture recognizer you could use <a href="https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIPanGestureRecognizer_Class/#//apple_ref/occ/instm/UIPanGestureRecognizer/translationInView:" rel="nofollow">translationInView:</a>. Based on that you can modify <code>position</code> of the camera.

Also while creating the gesture recognizer you can configure number of touches by <a href="https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIPanGestureRecognizer_Class/#//apple_ref/occ/instp/UIPanGestureRecognizer/maximumNumberOfTouches" rel="nofollow">maximumNumberOfTouches:</a> and <a href="https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIPanGestureRecognizer_Class/#//apple_ref/occ/instp/UIPanGestureRecognizer/minimumNumberOfTouches" rel="nofollow">minimumNumberOfTouches:</a>.

entityMap|blocks|key|421ft|text|作为@Kris的解决方案(基于UIKit)的替代方案，您还可以使用您的SKScene子类监控Sprite+Kit中的触摸。我写了一个小样本，它应该会给你指明正确的方向。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1ilm0|class+YourSceneSubclass+:+SKScene
{++
++override+func+touchesMoved(touches:+Set<UITouch>,+withEvent+event:+UIEvent?)+{
++++guard+let+touch+=+touches.first+else+{
++++++return
++++}

++++let+location+=+touch.locationInNode(self)
++++let+previousLocation+=+touch.previousLocationInNode(self)

++++camera?.position.x+%2B=+location.x+-+previousLocation.x
++++camera?.position.y+%2B=+location.y+-+previousLocation.y
++}
}|code-block|syntax|javascript|3drku|这不是我写的，只是在操场上写的。还要注意，如果您还想处理其他点击/手势，您将必须编写额外的代码，以确保识别在所有预期的场景中都能很好地工作。|567l8^0|0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|K|9|@]|A|@]|B|$]]|$2|C|4|D|6|E|8|L|9|@]|A|@]|B|$F|G]]|$2|H|4|I|6|7|8|M|9|@]|A|@]|B|$]]|$2|J|4|-4|6|7|8|N|9|@]|A|@]|B|$]]]]

As an alternative to @Kris's solution (which is based in UIKit), you can also monitor touches in Sprite Kit with your SKScene subclass. I wrote a small sample which should point you in the right direction.

<pre><code>class YourSceneSubclass : SKScene
{ 
 override func touchesMoved(touches: Set&lt;UITouch&gt;, withEvent event: UIEvent?) {
 guard let touch = touches.first else {
 return
 }

 let location = touch.locationInNode(self)
 let previousLocation = touch.previousLocationInNode(self)

 camera?.position.x += location.x - previousLocation.x
 camera?.position.y += location.y - previousLocation.y
 }
}
</code></pre>

I didn't run this, just wrote it in a playground. Also note that if you want to handle other taps/gestures as well you will have to write additional code making sure the recognition works well for all your intended scenarios.

entityMap|blocks|key|3ggnv|text|如果你发现你的水平移动与你期望的相反，尝试以下方法(Swift+3)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2nk3h|let+panGesture+=+UIPanGestureRecognizer()++++
var+previousPoint+=+CGPoint.zero

func++addPanGesture()
++++{
++++++++self.panGesture.addTarget(self,+action:#selector(BaseScene.pannedView(_:)+))
++++++++self.panGesture.delegate+=+self

++++++++self.view?.addGestureRecognizer(self.panGesture)
++++}
func+gestureRecognizerShouldBegin(_+gestureRecognizer:+UIGestureRecognizer)+->+Bool
{
++++self.previousPoint+=+self.camera.position

++++return+true
}


func+pannedView(_+sender:UIPanGestureRecognizer)
{
++++let+transPoint+=+sender.translation(in:+self.view)

++++let+newPosition+=+self.previousPoint+%2B+(CGPoint(x:+transPoint.x+*+-1.0,+y:+transPoint.y+*+1.0))

++++self.camera.position+=+newPosition
}|code-block|syntax|javascript|2mgbc^0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|I|9|@]|A|@]|B|$]]|$2|C|4|D|6|E|8|J|9|@]|A|@]|B|$F|G]]|$2|H|4|-4|6|7|8|K|9|@]|A|@]|B|$]]]]

If you find that your horizontal movement is opposite than your desired expectation, try the following (Swift 3):

<pre><code>let panGesture = UIPanGestureRecognizer() 
var previousPoint = CGPoint.zero

func addPanGesture()
 {
 self.panGesture.addTarget(self, action:#selector(BaseScene.pannedView(_:) ))
 self.panGesture.delegate = self

 self.view?.addGestureRecognizer(self.panGesture)
 }
func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -&gt; Bool
{
 self.previousPoint = self.camera.position

 return true
}


func pannedView(_ sender:UIPanGestureRecognizer)
{
 let transPoint = sender.translation(in: self.view)

 let newPosition = self.previousPoint + (CGPoint(x: transPoint.x * -1.0, y: transPoint.y * 1.0))

 self.camera.position = newPosition
}
</code></pre>

entityMap|blocks|key|6rm52|text|如果有人需要它，这里有一个一体化的解决方案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|agtgk|class+GameScene:+SKScene+{

++var+previousCameraPoint+=+CGPoint.zero

++override+func+didMove(to+view:+SKView)+{
++++let+panGesture+=+UIPanGestureRecognizer()
++++panGesture.addTarget(self,+action:+#selector(panGestureAction(_:)))
++++view?.addGestureRecognizer(panGesture)
++}

++@objc+func+panGestureAction(_+sender:+UIPanGestureRecognizer)+{
++++//+The+camera+has+a+weak+reference,+so+test+it
++++guard+let+camera+=+self.camera+else+{
++++++return
++++}
++++//+If+the+movement+just+began,+save+the+first+camera+position
++++if+sender.state+==+.began+{
++++++previousCameraPoint+=+camera.position
++++}
++++//+Perform+the+translation
++++let+translation+=+sender.translation(in:+self.view)
++++let+newPosition+=+CGPoint(
++++++x:+previousCameraPoint.x+%2B+translation.x+*+-1,
++++++y:+previousCameraPoint.y+%2B+translation.y
++++)
++++camera.position+=+newPosition
++}

}|code-block|syntax|javascript|40rh1^0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|I|9|@]|A|@]|B|$]]|$2|C|4|D|6|E|8|J|9|@]|A|@]|B|$F|G]]|$2|H|4|-4|6|7|8|K|9|@]|A|@]|B|$]]]]

If anybody needs it, here is an all-in-one solution:

<pre><code>class GameScene: SKScene {

 var previousCameraPoint = CGPoint.zero

 override func didMove(to view: SKView) {
 let panGesture = UIPanGestureRecognizer()
 panGesture.addTarget(self, action: #selector(panGestureAction(_:)))
 view?.addGestureRecognizer(panGesture)
 }

 @objc func panGestureAction(_ sender: UIPanGestureRecognizer) {
 // The camera has a weak reference, so test it
 guard let camera = self.camera else {
 return
 }
 // If the movement just began, save the first camera position
 if sender.state == .began {
 previousCameraPoint = camera.position
 }
 // Perform the translation
 let translation = sender.translation(in: self.view)
 let newPosition = CGPoint(
 x: previousCameraPoint.x + translation.x * -1,
 y: previousCameraPoint.y + translation.y
 )
 camera.position = newPosition
 }

}
</code></pre>

I am creating a game in sprite kit using swift, and I am trying to be able to move the SKScene around with a finger because not all of the nodes fit within the scene. I have already created world, overlay, and camera nodes with this code.

<pre><code> override func didMoveToView(view: SKView) {
 world = self.childNodeWithName("world")!

 if !isCreated {
 isCreated = true

 // Camera setup
 self.anchorPoint = CGPoint(x: 0.5, y: 0.5)
 self.world = SKNode()
 self.world.name = "world"
 addChild(self.world)

 self.cam = SKNode()
 self.cam.name = "camera"
 self.world.addChild(self.cam)

 // UI setup
 self.overlay = SKNode()
 self.overlay.zPosition = 10
 self.overlay.name = "overlay"
 addChild(self.overlay)
 }
</code></pre>

I would like to be able to move the camera around by using a pan gesture with a single finger. How would I do this? Any help would be appreciated.

Moving Camera in SpriteKit Swift

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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 我正在使用swift在精灵工具包中创建一个游戏，并且我试图能够用手指移动SKScene，因为并不是所有的节点都适合场景。我已经用这段代码创建了world、overlay和camera节点。         override func didMoveToView(view: SKView) {    world = s...

问在SpriteKit Swift中移动摄像机
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