有没有办法让SKSpriteNode圆形走投无路?我正在尝试用颜色填充的SKSpriteNode创建一个Tile likesqaure块:
SKSpriteNode *tile = [SKSpriteNode spriteNodeWithColor:[UIColor colorWithRed:0.0/255.0
green:128.0/255.0
blue:255.0/255.0
alpha:1.0] size:CGSizeMake(30, 30)];
我怎样才能绕过角落?
谢谢!
答案 0 :(得分:47)
要获得圆角节点,您可以使用2种方法,每种方法都需要使用SKShapeNode。
第一种方法是使用SKShapeNode并将其路径设置为圆角矩形,如下所示:
SKShapeNode* tile = [SKShapeNode node];
[tile setPath:CGPathCreateWithRoundedRect(CGRectMake(-15, -15, 30, 30), 4, 4, nil)];
tile.strokeColor = tile.fillColor = [UIColor colorWithRed:0.0/255.0
green:128.0/255.0
blue:255.0/255.0
alpha:1.0];
另一个使用sprite节点,crop节点和带圆角矩形的SKShapeNode作为裁剪节点掩码:
SKSpriteNode *tile = [SKSpriteNode spriteNodeWithColor:[UIColor colorWithRed:0.0/255.0
green:128.0/255.0
blue:255.0/255.0
alpha:1.0] size:CGSizeMake(30, 30)];
SKCropNode* cropNode = [SKCropNode node];
SKShapeNode* mask = [SKShapeNode node];
[mask setPath:CGPathCreateWithRoundedRect(CGRectMake(-15, -15, 30, 30), 4, 4, nil)];
[mask setFillColor:[SKColor whiteColor]];
[cropNode setMaskNode:mask];
[cropNode addChild:tile];
如果你的瓷砖是一种纯色,我建议你选择第一种方法。
答案 1 :(得分:13)
在Swift 3中,您可以创建:
let tile = SKShapeNode(rect: CGRect(x: 0, y: 0, width: 30, height: 30), cornerRadius: 10)
答案 2 :(得分:6)
希望这会有所帮助:
SKSpriteNode *make_rounded_rectangle(UIColor *color, CGSize size, float radius)
{
UIGraphicsBeginImageContext(size);
[color setFill];
CGRect rect = CGRectMake(0, 0, size.width, size.height);
UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:rect cornerRadius:radius];
[path fill];
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
SKTexture *texture = [SKTexture textureWithImage:image];
return [SKSpriteNode spriteNodeWithTexture:texture];
}
答案 3 :(得分:4)
class YourSprite: SKSpriteNode {
func yourSetupFunction() {
texture = SKTexture( image: UIImage(named: "cat")!.circleMasked! )
除此之外别无其他。
就是这么简单。使用SKShapeNode是一个疯狂的性能影响,它不是正确的解决方案,它毫无意义,SKShapeNode的目的与此问题无关。
看看他们所有小猫!
circleMasked的代码很简单:
(所有处理图片的项目无论如何都需要这个。)
extension UIImage {
var isPortrait: Bool { return size.height > size.width }
var isLandscape: Bool { return size.width > size.height }
var breadth: CGFloat { return min(size.width, size.height) }
var breadthSize: CGSize { return CGSize(width: breadth, height: breadth) }
var breadthRect: CGRect { return CGRect(origin: .zero, size: breadthSize) }
var circleMasked: UIImage? {
UIGraphicsBeginImageContextWithOptions(breadthSize, false, scale)
defer { UIGraphicsEndImageContext() }
guard let cgImage = cgImage?.cropping(to: CGRect(origin:
CGPoint(
x: isLandscape ? floor((size.width - size.height) / 2) : 0,
y: isPortrait ? floor((size.height - size.width) / 2) : 0),
size: breadthSize))
else { return nil }
UIBezierPath(ovalIn: breadthRect).addClip()
UIImage(cgImage: cgImage, scale: 1, orientation: imageOrientation)
.draw(in: breadthRect)
return UIGraphicsGetImageFromCurrentImageContext()
}
// classic 'circleMasked' stackoverflow fragment
// courtesy Leo Dabius /a/29047372/294884
}
这就是它的全部内容。
答案 4 :(得分:3)
这很大程度上受到了已接受的答案的启发,但它使用了一种更易读的方式来创建SKShapeNode
并修复了裁剪周围恼人的像素线。看起来像一个小细节,但它可能花费几分钟。
CGFloat cornerRadius = 15;
SKCropNode *cropNode = [SKCropNode node];
SKShapeNode *maskNode = [SKShapeNode shapeNodeWithRectOfSize:scoreNode.size cornerRadius:cornerRadius];
[maskNode setLineWidth:0.0];
[maskNode setFillColor:[UIColor whiteColor]];
[cropNode setMaskNode:maskNode];
[cropNode addChild:scoreNode];
答案 5 :(得分:2)
在您将精灵添加到其父级之前,可以创建一个很好的解决方案,我已经为您提供了一个可以根据需要进行更正的扩展:
extension SKSpriteNode {
func addTo(parent:SKNode?, withRadius:CGFloat) {
guard parent != nil else { return }
guard withRadius>0.0 else {
parent!.addChild(self)
return
}
let radiusShape = SKShapeNode.init(rect: CGRect.init(origin: CGPoint.zero, size: size), cornerRadius: withRadius)
radiusShape.position = CGPoint.zero
radiusShape.lineWidth = 2.0
radiusShape.fillColor = UIColor.red
radiusShape.strokeColor = UIColor.red
radiusShape.zPosition = 2
radiusShape.position = CGPoint.zero
let cropNode = SKCropNode()
cropNode.position = self.position
cropNode.zPosition = 3
cropNode.addChild(self)
cropNode.maskNode = radiusShape
parent!.addChild(cropNode)
}
}
let rootNode = SKSpriteNode(color: .white, size: self.size)
rootNode.alpha = 1.0
rootNode.anchorPoint = CGPoint.zero
rootNode.position = CGPoint.zero
rootNode.zPosition = 1
rootNode.name = "rootNode"
rootNode.addTo(parent: self, withRadius: 40.0)
答案 6 :(得分:1)
来自班级参考:
“SKSpriteNode是绘制纹理图像,彩色方块或与颜色混合的纹理图像的节点。”
似乎最简单的方法是绘制一个带圆角的块,然后使用以下类方法之一:
答案 7 :(得分:0)
这是一个基于接受答案的第二个解决方案的Swift 3片段。
func createPlayerRoundedNode(){
let tile = SKSpriteNode(color: .white, size: CGSize(width: 30, height: 30))
tile.zPosition = 3
tile.name = "tile node"
let cropNode = SKCropNode()
cropNode.zPosition = 2
cropNode.name = "crop node"
let mask = SKShapeNode(rect: CGRect(x: 0, y: 0, width: 30, height: 30), cornerRadius: 10)
mask.fillColor = SKColor.darkGray
mask.zPosition = 2
mask.name = "mask node"
cropNode.maskNode = mask
self.addChild(cropNode)
cropNode.addChild(tile)
}