sprite-kit

问题 Basically what it says in the title. Is there a way to change the font and or location of SpriteKit debug data? The data that we set in the viewController: skView.showsFPS = YES; skView.showsNodeCount = YES; skView.showsDrawCount = YES; 回答1: You can add such debugging information to the scene by yourself: https://developer.apple.com/library/ios/documentation/GraphicsAnimation/Conceptual/SpriteKit_PG/Actions/Actions.html Example: Adding a Debugging Overlay section. 回答2: No. Those are all part

问题 I used a relatively small image (44pixel tall) and scaled it up to have a pixel art look. I tried to change the filtering mode to nearest so the anti-aliasing would disappear but it didn't. It appears with blurry edges. I tried the same with a background getting the same result. let myNode = SKSpriteNode() class GameScene: SKScene { func makeNode() { myNode.position = CGPoint(x: self.frame.size.width/2, y: self.frame.size.height/2) myNode.size = CGSize(width: 200, height: 200) myNode.texture

问题 Creating a game with SpriteKit and its actually working out very well. I am using physics and having the ability to see actually where my bodies are because I might have some alpha inside of my sprites will really be helpful. This will also be helpful for creating more precise bodies. In the documentation for SpriteKit they talk about a debugOverlay but the only example they give is to draw the direction of gravity. Here is the link: https://developer.apple.com/library/ios/documentation

问题 My app crashes on devices with 0.5GB memory. However, profiling memory usage in Xcode - it rarely goes above 140MB. I've used instruments to check leaks and there are none that are significant. However, when I run my app, the memory used by 'Other Processes' is always very high. This is the resting state after launching: I added a 1 second delay in each cycle of a loop in my code, and discovered that on each loop, the 'other processes' increases memory usage by about 3MB per object, until on

问题 I am trying to learn the Swift language, and I followed a lot of tutorials on Youtube. Since most of them are for iOS, I wanted to make the OSX version of this one: https://www.youtube.com/watch?v=8PrVHrs10to (SideScroller game) I followed it carefully but I am stuck at about 22 minutes of the video when I have to update the player position. My first problem was to get the pressed keys. I come from C# language, so I wanted to find something like If(Keyboard.GetState().IsKeyDown(Keys.Right))

问题 I create my SKPhysicsBody with rectangle from size, I set it to size of the node, but the collision detection does not work on good portion of the node. How do I draw the red frame around physics body? I tried using precise collision detection, but it doesn't help. I have checked some debug library but it draws only direct descendants of the scene, and my nodes are few levels deep. Author apparently doesn't know what recursion is. How do I draw red frame around physics body if my body is

问题 I need to check if a CGPoint is inside a SKSpriteNode. After a little research, CGPathContainsPoint seems appropriated for my purpose. if CGPathContainsPoint(my_sprite_path, nil, my_point, false) { } But Xcode alerts me: Use of unresolved identifier CGPathContainsPoint I tried to import : import UIKit import CoreGraphics I'm using Xcode 8.0 beta 6. Did I miss anything? 回答1: As of Swift 3, many Core Graphics functions are now methods on the corresponding type. In your example: if my_sprite

问题 I have been trying to reset the GameScene by creating a new duplicate of the GameScene, which works. However, the problem is that the scene doesn't deallocate, which is definitely an issue since I profiled my app with Allocations and saw that the memory was 'clogging' and 'piling' up. This is my code for my GameViewController and my GameScene: import UIKit import SpriteKit import GameplayKit var screenSize = CGSize() class GameViewController: UIViewController { override func viewDidLoad() {

问题 I am trying to play a video, showing transparency in an ARSCNView . A SCNPlane is used as a projection space for the video and I am trying to color key this video with GPUImage . I followed this example here. Unfortunately, I have not found a way to project that video back on my videoSpriteKitNode . Because the filter is rendered in a GPUImageView , and the SKVideoNode takes a AVPlayer . I am not sure if it is possible at all, what I am trying to do, so if anyone could share their insight I'd

问题 UIInterpolatingMotionEffect is intended for use with UIView, but is there a possibility to use it within SpriteKit on a node ? If not, does someone has an idea to realize the effect another way. Thanks in advance 回答1: Creating a parallax effect in Sprite Kit can be achieved by creating a set of SKNode layers, adding sprites to the layers, and then moving each layer by a different amount when the user tilts the device. You can optionally scale the layers to give the illusion of depth. Here's