当我在层次结构中添加额外的SKNode子项时,SKCropNode失败

时间:2016-09-04 18:17:51

标签: ios swift cocoa-touch sprite-kit skcropnode

更新:看起来iOS 10已经解决了这个问题。我升级到Swift 3和Xcode 8,一切都按预期工作。

我现在已经遇到过这个问题了几次,我无法判断它是否是SKCropNode中的错误,或者我是否只是在滥用它。也许有一些文件我想要解释为什么会发生这种情况?

我有一个100x100矩形形状的裁剪节点作为遮罩。如果我在其中放置一个蓝色圆圈,它会被正确裁剪。

// Create a crope node with a small square.
let cropNode = SKCropNode()
let cropNodeMask = SKShapeNode(rect: CGRect(x: 0, y: 0, width: 100, height: 100))
cropNodeMask.fillColor = UIColor.whiteColor()
cropNode.maskNode = cropNodeMask
self.addChild(cropNode)

// Create a blue circle and put it in the crop node.
let blueCircle = SKShapeNode(circleOfRadius: 110)
blueCircle.fillColor = UIColor.blueColor()
blueCircle.strokeColor = UIColor.clearColor()
cropNode.addChild(blueCircle)

enter image description here

现在,当我将同一个圆放在一个空的SKNode中并将该容器放在同一个裁剪节点中时,裁剪失败。

// Create a crope node with a small square.
let cropNode = SKCropNode()
let cropNodeMask = SKShapeNode(rect: CGRect(x: 0, y: 0, width: 100, height: 100))
cropNodeMask.fillColor = UIColor.whiteColor()
cropNode.maskNode = cropNodeMask
self.addChild(cropNode)

// Create a container to hold the circle.
let container = SKNode()
cropNode.addChild(container)

// Create a blue circle and put it in the container.
let blueCircle = SKShapeNode(circleOfRadius: 110)
blueCircle.fillColor = UIColor.blueColor()
blueCircle.strokeColor = UIColor.clearColor()
container.addChild(blueCircle)

enter image description here

但同一个容器中的一个精灵似乎被裁掉了。

// Create a crope node with a small square.
let cropNode = SKCropNode()
let cropNodeMask = SKShapeNode(rect: CGRect(x: 0, y: 0, width: 100, height: 100))
cropNodeMask.fillColor = UIColor.whiteColor()
cropNode.maskNode = cropNodeMask
self.addChild(cropNode)

// Create a container to hold the sprite.
let container = SKNode()
cropNode.addChild(container)

// Create a spaceship and add it to the container.
let spaceshipNode = SKSpriteNode(imageNamed: "Spaceship")
spaceshipNode.anchorPoint = CGPointZero
container.addChild(spaceshipNode)

enter image description here

1 个答案:

答案 0 :(得分:4)

SKShapeNode有问题,最好不惜一切代价避免它。使用它来创建形状,然后将其转换为纹理以用于SKSpriteNode