I can't understand why the "strokeTexture" option isn't working on a SKShapeNode. Or, how can I do border with texture? Thanks in advance!
let shape = SKShapeNode(circleOfRadius: 100)
shape.position = CGPoint(x: 200, y: 400)
shape.fillColor = SKColor.white
shape.fillTexture = SKTexture(imageNamed: "test")
shape.lineWidth = 50
shape.strokeColor = SKColor.white
shape.strokeTexture = SKTexture(imageNamed: "test(5)")
Output:
Test image:
Test(5) image:
It doesn't work in Simulator!
Try it on your device.
I get the feeling this stroke might be being done with metal, whereas the fill is somehow not being done with metal, so is visible in the simulator.
The fill also doesn't rotate with the object on the device, but the stroke/outline and its texture do.
This would tend to indicate that an SKShapeNode without a fill might have reasonable performance.
Set the width and height of the texture, that is used to render the stroke, multiple of 8 pixels. In your case Test(5) has dimensions 100x100. If you change this texture for another one with dimensions, e.g. 96x96 pixels, the stroke will be rendered correctly and displayed. I don't know, why there are no reference to this fact in the official documentation.
Related
I have the problem that the images I add are distorted. I have created a pixel accurate background for the iPhone X at (1125 x 2436), so I don't have to use .aspectFill and .aspectFit because I want a screen without black borders.
I use the following code to create the images:
func animateDeck() {
let chip = SKSpriteNode(imageNamed: "Chip")
chip.position = CGPoint(x: 300, y: 400)
chip.zPosition = 2
chip.setScale(1)
gameScene2.addChild(chip)
print("test")
}
Is there a way to display the images in their correct size without using .aspectFit or .aspectFill?
now (left) and how it should be (right)
Thank you in advance!
Check out this project I just made to show you how to create a texture and apply it to a node. All you need should be in GameScene.swift.
Also, in your ViewController, make sure that your GameScene is initialised properly as shown in my project, or how you did it with this:
gameScene2 = GameScene(size: view, bounds: size)
I'm trying to add a label to an ARKit project, but it's rendering extremely blurry. See image below:
Here's my code:
let shapeNode = SKShapeNode(rectOf: CGSize(width: 30, height: 30))
shapeNode.name = "bar"
shapeNode.fillColor = UIColor.white
let labelNode = SKLabelNode(text: "Hello world")
labelNode.horizontalAlignmentMode = .left
labelNode.verticalAlignmentMode = .top
labelNode.fontColor = UIColor.black
labelNode.fontSize = 3
When you create a SKScene for display, you have to give it a size. This is the resolution of what will be rendered. It will then be scaled to the SKSceneView it appears in, according to how you set its scaleMode property. If the resolution of your SKScene is lower than the point size of the view it appears in, the output will be adjusted to fit using a standard scaling algorithm and will therefore be blurry.
Try increasing the size of your SKScene by a little bit and see if that helps. Note that you will likely also have to adjust the size and position of your nodes as these will appear to shrink as the scene gets larger.
Ok, so I've been trying to position a line on my iPhone 6s+ and my iPad 2. The line was added in an SKCamera (I don't know if that effects it or not). Here is the code for the line:
var leftWall = SKSpriteNode()
leftWall.size = CGSize(width: 1, height: 10000)
leftWall.position = CGPoint(x: 0, y: 0)
leftWall.color = UIColor.red
leftWall.physicsBody = SKPhysicsBody(rectangleOf: CGSize(width: leftWall.size.width, height: leftWall.size.height))
leftWall.physicsBody?.affectedByGravity = false
leftWall.physicsBody?.isDynamic = false
leftWall.physicsBody?.categoryBitMask = groundGroup
leftWall.physicsBody?.collisionBitMask = ballGroup
leftWall.physicsBody?.contactTestBitMask = 0
theCamera.addChild(leftWall)
Okay, so the x position is 0,0 right? Here is how it looks on my iPhone 6s+:
As you see, the line is in the middle?
Here is how it looks on my iPad 2:
I just don't understand why the position of the line is completely different.. Please help me!
You are not taking into account the cropping that happens on the iPad, or your scaleMode is all wrong
What you need to do is set all nodes anchor points (Including the scene) to (0.5,0.5), make sure your GameScene has a static size and not based on view.frame (750,1334 is a good one) and that your scale mode is set to .aspectFill. This makes (0,0) the center of the screen, and you will notice everything line up on all devices
Completely new to SpriteKit. Currently I have a UIView, and I want to add a sprite node to it (like a small UIImageView, but I want animation for it so using SpriteKit). Therefore I didn't initialize my project to be a game project, as found in almost all of tutorials for SpriteKit. I've found a note here: link and what I have now is sth like:
func initializeImage() {
let imageView = SKView()
imageView.frame = CGRect(x: self.frame.width / 2 - Constants.imageWidth / 2, y: self.frame.height - Constants.imageHeight, width: Constants.imageWidth, height: Constants.imageHeight)
// so place it somewhere in the bottom middle of the whole frame
let sheet = SpriteSheet(texture: ...)
let sprite = SKSpriteNode(texture: sheet.itemFor(column: 0, row: 0))
sprite.position = imageView.center //basically the same position as the imageView.frame's x and y value
let scene = SKScene(size: imageView.frame.size)
scene.backgroundColor = SKColor.clear
scene.addChild(sprite)
imageView.presentScene(scene)
self.frame.addSubview(imageView)
}
The SpriteSheet is similar to this: sprite sheet; it's essentially cutting an image atlas and divide it into smaller images. I tracked the process and this step is indeed giving the smaller image (the var 'sprite'). But if running I only have a black square now (should be the size as defined by Constants). If I set scene.backgroundColor to be white then it's white. May I know how I should proceed from here, as how should I make the sprite showing up?
All of your code looks good except for this:
sprite.position = imageView.center // basically the same position as the imageView.frame's x and y value
That is basically not the position you think it is. The coordinate system in SpriteKit is a) relative to the (SK)scene, not to whatever view the SKView is contained in, and b) flipped vertically relative to the UIKit coordinate system. If you want a sprite centered in the scene, you probably want to set its position based on the scene's size:
sprite.position = CGPoint(x: scene.size.width / 2, y: scene.size.height / 2)
By the way, the external SpriteSheet code might not be needed (and you're more likely to benefit from Apple's optimizations) if you slice up your sprite sheet and put it in an Xcode asset catalog.
I have an SKCropNode that is working fine except for one thing - all of the greyscale values in the mask image that are not black or white are getting set to solid white.
This means that all greyscale alpha values are not rendering with transparency, but are just being set to be fully opaque.
Here is my code:
let foregroundTexture = SKTexture(image: UIImage(contentsOfFile:NSBundle.mainBundle().resourcePath!.stringByAppendingPathComponent("P01_foreground.jpg"))!)
var foreground = SKSpriteNode(texture: foregroundTexture)
let maskTexture = SKTexture(image: UIImage(contentsOfFile:NSBundle.mainBundle().resourcePath!.stringByAppendingPathComponent("P01_mask.png"))!)
var mask = SKSpriteNode(texture: maskTexture)
var cropNode = SKCropNode()
cropNode.addChild(foreground)
cropNode.maskNode = mask
cropNode.position = CGPoint(x: device.x/2, y: device.y/2)
cropNode.zPosition = 2.0
self.addChild(cropNode)
Does anyone know why the greyscale areas are being set to white or how I can achieve the desired result? Thanks in advance!
Unfortunately it looks like you can't. SKCropNode currently only has one property, the maskNode itself. There are no additional settings available to do what you want.