I am trying to save a simple piece of information using NSUserdefaults. I am trying to save a SKSprite to have an alpha of 1. Here is how I am doing it.
First scene: Level select (sprite alpha is 0.2)
When user completes Level: (edit sprite in Level Select to equal one)
GameViewController:
override func viewDidLoad() {
super.viewDidLoad()
if let view = self.view as! SKView? {
// Load the SKScene from 'GameScene.sks'
if let scene = levelselectscene {
// Set the scale mode to scale to fit the window
scene.scaleMode = .fill
// Present the scene
view.presentScene(scene)
}
view.ignoresSiblingOrder = true
view.showsFPS = true
view.showsNodeCount = true
}
}
override var shouldAutorotate: Bool {
return true
}
Level Select:
override func didMove(to view: SKView) {
if unlockLevelTwoButton == true {
levelselectscene?.childNode(withName: "LevelTwoButton")?.alpha = 1
UserDefaults.standard.set(unlockLevelTwoButton, forKey: "LevelTwoUnlocked")
print("I got this far")
}
}
Level One:
func didBegin(_ contact: SKPhysicsContact) {
var bodyA = contact.bodyA
var bodyB = contact.bodyB
let threeStars = SKScene(fileNamed: "LevelCompleted3Star")
let fadeAction = SKAction.fadeAlpha(by: 1, duration: 0.45)
if bodyA.categoryBitMask == 1 && bodyB.categoryBitMask == 2 || bodyA.categoryBitMask == 2 && bodyB.categoryBitMask == 1{
print("TEST")
levelOneCompleted() //islevelonecompleted
unlockLevelTwoButton = true
//3 stars
threeStars?.scaleMode = .fill
self.view?.presentScene(threeStars!, transition: .fade(withDuration: 0.3))
}
3 Stars:
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
if isLevelOneCompleted == true{
unlockLevelTwoButton = true
UserDefaults.standard.set(isLevelOneCompleted, forKey: "LevelOne")
UserDefaults.standard.synchronize()
levelselectscene?.scaleMode = .fill
levelselectscene?.childNode(withName: "levelTwoButton")?.alpha = 1
self.view?.presentScene(levelselectscene)
}
To me, it looks like the information should save. What am I doing wrong? I also have the keys set to retrieve:
if let z = UserDefaults.standard.object(forKey: "LevelTwoButton")
{
unlockLevelTwoButton = z as! Bool
}
Can't figure out why it's not saving!
Based on the code you've shown, you are saving it with one name, and retrieving it with a different name (LevelTwoUnlocked) vs (LevelTwoButton)
Related
I am classifying images per frame from ARSession delegate by Vision framework and CoreML in an Augmented Reality app, with ARKit and RealityKit. While processing a frame.capturedImage I am not requesting another frame.capturedImage for performance.
The camera is not giving smooth experience, it gets stuck time to time. Seems like a frame loss.
And I am getting this Warning:
[Session] ARSession <0x122cc3710>: ARSessionDelegate is retaining 14 ARFrames. This can lead to future camera frames being dropped.
My Codes:
import Foundation
import SwiftUI
import RealityKit
import ARKit
import CoreML
struct ARViewContainer: UIViewRepresentable {
var errorFunc: ()->Void
var frameUpdateFunc: ()->Void
#Binding var finalLabel:String
func makeUIView(context: Context) -> ARView {
let arView = ARView(frame: .zero)
let config = ARWorldTrackingConfiguration()
config.planeDetection = [.horizontal,.vertical]
config.environmentTexturing = .automatic
if ARWorldTrackingConfiguration.supportsSceneReconstruction(.mesh){
config.sceneReconstruction = .mesh
}
arView.session.delegate = context.coordinator
arView.session.run(config)
context.coordinator.myView = arView
return arView
}
func updateUIView(_ uiView: ARView, context: Context) {
}
func makeCoordinator() -> Coordinator {
Coordinator(finalLabel: $finalLabel, self, funct: self.errorFunc, frameUpdateFunc: self.frameUpdateFunc)
}
class Coordinator: NSObject, ARSessionDelegate {
var objectDetectionService = ObjectDetectionService()
var myView:ARView?
#Binding var finalLabel:String
var parent: ARViewContainer
var efunc:()->Void
var frameUpdateFunc:()->Void
var isLoopShouldContinue = true
var lastLocation: SCNVector3?
//let model = try? MobileNetV2(configuration: .init())
private let classifier = VisionClasifier(mlModel: try? MobileNetV2(configuration: .init()).model)
private var currentBuffer: CVPixelBuffer? = nil
init(finalLabel:Binding<String>,_ arView: ARViewContainer,funct: #escaping ()->Void, frameUpdateFunc:#escaping ()->Void) {
parent = arView
self.efunc = funct
self.frameUpdateFunc = frameUpdateFunc
_finalLabel = finalLabel
}
func session(_ session: ARSession, didFailWithError error: Error) {
//print("Error Tanvir: ",error)
self.efunc()
}
func session(_ session: ARSession, didUpdate frame: ARFrame) {
if isLoopShouldContinue{
self.classifyFrame(currentFrame: frame)
}
let transform = SCNMatrix4(frame.camera.transform)
let orientation = SCNVector3(-transform.m31, -transform.m32, transform.m33)
let location = SCNVector3(transform.m41, transform.m42, transform.m43)
let currentPositionOfCamera = orientation + location
if let lastLocation = lastLocation {
let speed = (lastLocation - currentPositionOfCamera).length()
isLoopShouldContinue = speed < 0.0025
}
lastLocation = currentPositionOfCamera
}
// When ARKit detects a new anchor, it will add it to the ARSession
// Whenever there is a newly added ARAnchor, you will get that anchor here.
// In this short tutorial, we will target the ARPlaneAnchor, and use the information stored
// in that anchor for visualization.
func session(_ session: ARSession, didAdd anchors: [ARAnchor]) {
guard let myView = myView else {
return
}
for anchor in anchors {
if anchor is ARPlaneAnchor {
let planeAnchor = anchor as! ARPlaneAnchor
//addPlaneEntity(with: planeAnchor, to: myView)
}
}
}
// ARKit will automatically track and update the ARPlaneAnchor.
// We use that anchor to update the `skin` of the plane.
func session(_ session: ARSession, didUpdate anchors: [ARAnchor]) {
guard let myView = myView else {
return
}
for anchor in anchors {
if anchor is ARPlaneAnchor {
let planeAnchor = anchor as! ARPlaneAnchor
//updatePlaneEntity(with: planeAnchor, in: myView)
}
}
}
// When ARKit remove an anchor from the ARSession, you will get the removed
// anchor here.
func session(_ session: ARSession, didRemove anchors: [ARAnchor]) {
guard let myView = myView else {
return
}
for anchor in anchors {
if anchor is ARPlaneAnchor {
let planeAnchor = anchor as! ARPlaneAnchor
//removePlaneEntity(with: planeAnchor, from: myView)
}
}
}
func addAnnotation(rectOfInterest rect: CGRect, text: String,width:Float,height:Float) {
let point = CGPoint(x: rect.midX, y: rect.midY)
print("point:", point)
//let scnHitTestResults = myView.hitTest(point,
// options: [SCNHitTestOption.searchMode: SCNHitTestSearchMode.all.rawValue])
//guard !scnHitTestResults.contains(where: { $0.node.name == BubbleNode.name }) else { return }
let raycastResult = myView!.raycast(from: point, allowing: .estimatedPlane, alignment: .any)
// guard let raycastQuery = myView!.raycastQuery(from: point,
// allowing: .existingPlaneInfinite,
// alignment: .horizontal),
// let raycastResult = myView.session.raycast(raycastQuery).first else { return }
guard let raycastResult = raycastResult.first else{
print("raycast result failed")
return
}
let anchorExists = myView!.scene.anchors.contains(where: {$0.name == text})
guard anchorExists == false else{
print("anchor Already exists")
return
}
let position = raycastResult.worldTransform.columns.3
let myEntity = create2dEntity(with: position, boundingBox: rect, raycastResult: raycastResult,width:width ,height:height)
let planeAnchorEntity = AnchorEntity()
planeAnchorEntity.name = text
planeAnchorEntity.position = simd_make_float3(position)
planeAnchorEntity.addChild(myEntity)
// Finally, add the entity to scene.
myView!.scene.addAnchor(planeAnchorEntity)
print("anchor added: ", planeAnchorEntity.name)
}
func classifyFrame(currentFrame:ARFrame){
//let currentImageName = photos[currentIndex]
// 2
// 3
print("inside Classify")
//print("CurrentBuffer", currentBuffer)
guard self.currentBuffer == nil else {
//print("CurrentBuffer: ",currentBuffer)
//self.finalLabel = "current buffer problem"
return
}
self.currentBuffer = currentFrame.capturedImage
// guard let model = self.model else {
// return "Model not Found."
// }
let img = CIImage(cvImageBuffer: currentFrame.capturedImage)
let cgImage = convertCIImageToCGImage(inputImage: img)
guard let cgImage = cgImage else{
print("can not convert CGImage")
self.finalLabel = "can not convert CGImage"
return
}
objectDetectionService.detect(on: .init(pixelBuffer: currentFrame.capturedImage)) { [weak self] result in
guard let self = self else { return }
switch result {
case .success(let response):
self.finalLabel = response.classification.description
print("Real Width: ",response.boundingBox.width)
let rectOfInterest = VNImageRectForNormalizedRect(
response.boundingBox,
Int(self.myView!.bounds.width),
Int(self.myView!.bounds.height))
self.addAnnotation(rectOfInterest: rectOfInterest, text: response.classification.description,width: Float(response.boundingBox.width),height: Float(response.boundingBox.height))
print("Success:",response.classification.description)
self.currentBuffer = nil
case .failure(let error):
self.finalLabel = "Detection Failed"
print("Detection failure: ",error.localizedDescription)
self.currentBuffer = nil
break
}
}
}
}
}
func convertCIImageToCGImage(inputImage: CIImage) -> CGImage? {
let context = CIContext(options: nil)
if let cgImage = context.createCGImage(inputImage, from: inputImage.extent) {
return cgImage
}
return nil
}
// The ARPlaneAnchor contains the information we need to create the `skin` of the plane.
func addPlaneEntity(with anchor: ARPlaneAnchor, to view: ARView) {
let planeAnchorEntity = AnchorEntity(.plane([.any],
classification: [.any],
minimumBounds: [0.01, 0.01]))
let planeModelEntity = createPlaneModelEntity(with: anchor)
// Give Entity a name for tracking.
planeAnchorEntity.name = anchor.identifier.uuidString + "_anchor"
planeModelEntity.name = anchor.identifier.uuidString + "_model"
// Add ModelEntity as a child of AnchorEntity.
// AnchorEntity handles `position` of the plane.
// ModelEntity handles the `skin` of the plane.
planeAnchorEntity.addChild(planeModelEntity)
// Finally, add the entity to scene.
view.scene.addAnchor(planeAnchorEntity)
}
func create2dEntity(with position: simd_float4, boundingBox: CGRect, raycastResult:ARRaycastResult, width:Float,height:Float ) -> ModelEntity{
var planeMesh: MeshResource
var color: UIColor
print("horizotal plane")
color = UIColor.red.withAlphaComponent(0.5)
print("Constant width: 0.1 but BoundingBox Width: ",boundingBox.width)
planeMesh = .generatePlane(width: 0.1, height: 0.1)
return ModelEntity(mesh: planeMesh, materials: [SimpleMaterial(color: color, roughness: 0.25, isMetallic: false)])
}
func createPlaneModelEntity(with anchor: ARPlaneAnchor) -> ModelEntity {
var planeMesh: MeshResource
var color: UIColor
if anchor.alignment == .horizontal {
print("horizotal plane")
color = UIColor.blue.withAlphaComponent(0.5)
planeMesh = .generatePlane(width: anchor.extent.x, depth: anchor.extent.z)
} else if anchor.alignment == .vertical {
print("vertical plane")
color = UIColor.yellow.withAlphaComponent(0.5)
planeMesh = .generatePlane(width: anchor.extent.x, height: anchor.extent.z)
} else {
fatalError("Anchor is not ARPlaneAnchor")
}
return ModelEntity(mesh: planeMesh, materials: [SimpleMaterial(color: color, roughness: 0.25, isMetallic: false)])
}
func removePlaneEntity(with anchor: ARPlaneAnchor, from arView: ARView) {
guard let planeAnchorEntity = arView.scene.findEntity(named: anchor.identifier.uuidString+"_anchor") else { return }
arView.scene.removeAnchor(planeAnchorEntity as! AnchorEntity)
}
func updatePlaneEntity(with anchor: ARPlaneAnchor, in view: ARView) {
var planeMesh: MeshResource
guard let entity = view.scene.findEntity(named: anchor.identifier.uuidString+"_model") else { return }
let modelEntity = entity as! ModelEntity
if anchor.alignment == .horizontal {
planeMesh = .generatePlane(width: anchor.extent.x, depth: anchor.extent.z)
} else if anchor.alignment == .vertical {
planeMesh = .generatePlane(width: anchor.extent.x, height: anchor.extent.z)
} else {
fatalError("Anchor is not ARPlaneAnchor")
}
modelEntity.model!.mesh = planeMesh
}
import SceneKit
extension SCNVector3 {
func length() -> Float {
return sqrtf(x * x + y * y + z * z)
}
}
func -(l: SCNVector3, r: SCNVector3) -> SCNVector3 {
return SCNVector3Make(l.x - r.x, l.y - r.y, l.z - r.z)
}
func +(l: SCNVector3, r: SCNVector3) -> SCNVector3 {
return SCNVector3(l.x + r.x, l.y + r.y, l.z + r.z)
}
func /(l: SCNVector3, r: Float) -> SCNVector3 {
return SCNVector3(l.x / r, l.y / r, l.z / r)
}
Detection: (Here is the problem, I guess, in detect method)
import Foundation
import UIKit
import CoreML
import Vision
import SceneKit
class ObjectDetectionService {
var mlModel = try! VNCoreMLModel(for: YOLOv3Int8LUT().model)
//let model = try? YOLOv3Int8LUT(configuration: .init())
lazy var coreMLRequest: VNCoreMLRequest = {
return VNCoreMLRequest(model: mlModel,
completionHandler: self.coreMlRequestHandler)
}()
private var completion: ((Result<Response, Error>) -> Void)?
func detect(on request: Request, completion: #escaping (Result<Response, Error>) -> Void) {
self.completion = completion
//let orientation = .up
let imageRequestHandler = VNImageRequestHandler(cvPixelBuffer: request.pixelBuffer)
do {
try imageRequestHandler.perform([coreMLRequest])
} catch {
self.complete(.failure(error))
return
}
}
}
private extension ObjectDetectionService {
func coreMlRequestHandler(_ request: VNRequest?, error: Error?) {
if let error = error {
complete(.failure(error))
return
}
guard let request = request, let results = request.results as? [VNRecognizedObjectObservation] else {
complete(.failure(RecognitionError.resultIsEmpty))
return
}
guard let result = results.first(where: { $0.confidence > 0.8 }),
let classification = result.labels.first else {
complete(.failure(RecognitionError.lowConfidence))
return
}
let response = Response(boundingBox: result.boundingBox,
classification: classification.identifier)
complete(.success(response))
}
func complete(_ result: Result<Response, Error>) {
DispatchQueue.main.async {
self.completion?(result)
self.completion = nil
}
}
}
enum RecognitionError: Error {
case unableToInitializeCoreMLModel
case resultIsEmpty
case lowConfidence
}
extension ObjectDetectionService {
struct Request {
let pixelBuffer: CVPixelBuffer
}
struct Response {
let boundingBox: CGRect
let classification: String
}
}
Why am I getting this warning, and How to get the camera smooth experience?
The session(_ session: ARSession, didUpdate frame: ARFrame) delegate method is called very frequently: many times per second. If your classifyFrame method is doing too much work, it will retain the ARFrame object until after the next frame is delivered to the delegate.
ARKit will warn you when too many frames are retained, typically because a queue is blocked in your delegate.
I'm trying to present a UI of a title/less window when a mouse leaves a window's title or contentview, but not when moving from one to the other; in essence have the two tracking areas function as one (I resorted to this as I couldn't figure out how to create a single area when the title view is hidden):
override func mouseEntered(with theEvent: NSEvent) {
let hideTitle = (doc?.settings.autoHideTitle.value == true)
if theEvent.modifierFlags.contains(.shift) {
NSApp.activate(ignoringOtherApps: true)
}
switch theEvent.trackingNumber {
case closeTrackingTag:
Swift.print("close entered")
closeButton?.image = closeButtonImage
break
default:
Swift.print(String(format: "%# entered",
(theEvent.trackingNumber == titleTrackingTag
? "title" : "view")))
let lastMouseOver = mouseOver
mouseOver = true
updateTranslucency()
// view or title entered
if hideTitle && (lastMouseOver != mouseOver) {
updateTitleBar(didChange: !lastMouseOver)
}
}
}
override func mouseExited(with theEvent: NSEvent) {
let hideTitle = (doc?.settings.autoHideTitle.value == true)
switch theEvent.trackingNumber {
case closeTrackingTag:
Swift.print("close exited")
closeButton?.image = nullImage
break
default:
Swift.print(String(format: "%# exited",
(theEvent.trackingNumber == titleTrackingTag
? "title" : "view")))
let lastMouseOver = mouseOver
mouseOver = false
updateTranslucency()
if hideTitle && (lastMouseOver != mouseOver) {
updateTitleBar(didChange: lastMouseOver)
}
}
}
Additionally, there's a tracking rect on the close button to appear only when over. Anyway, from my tracer output I see the issue - mouse over window from beneath to over its title:
view entered
updateTitleBar
**view entered**
view exited
updateTitleBar
title entered
updateTitleBar
title exited
Note sure why I'm getting a second view entered event (view entered), but the movement out of the view and onto the adjacent title each triggers an updateTilebar() call which is visually stuttering - not remedied so far with animation:
fileprivate func docIconToggle() {
let docIconButton = panel.standardWindowButton(.documentIconButton)
if settings.autoHideTitle.value == false || mouseOver {
if let doc = self.document {
docIconButton?.image = (doc as! Document).displayImage
}
else
{
docIconButton?.image = NSApp.applicationIconImage
}
docIconButton?.isHidden = false
self.synchronizeWindowTitleWithDocumentName()
}
else
{
docIconButton?.isHidden = true
}
}
#objc func updateTitleBar(didChange: Bool) {
if didChange {
Swift.print("updateTitleBar")
if settings.autoHideTitle.value == true && !mouseOver {
NSAnimationContext.runAnimationGroup({ (context) -> Void in
context.duration = 1.0
panel.animator().titleVisibility = NSWindowTitleVisibility.hidden
panel.animator().titlebarAppearsTransparent = true
panel.animator().styleMask.formUnion(.fullSizeContentView)
}, completionHandler: {
self.docIconToggle()
})
} else {
NSAnimationContext.runAnimationGroup({ (context) -> Void in
context.duration = 1.0
panel.animator().titleVisibility = NSWindowTitleVisibility.visible
panel.animator().titlebarAppearsTransparent = false
panel.animator().styleMask.formSymmetricDifference(.fullSizeContentView)
}, completionHandler: {
self.docIconToggle()
})
}
}
}
So my question is about how to defer the actions when areas are adjacent.
They (titlebar & content view) are not siblings of each other so didn't think a hitTest() was doable but basically if I could tell if I was moving into the adjacent tracking area, I'd like it to be a no-op.
Any help with why animation isn't working would be a plus.
Not a true answer, but if you know the adjacent view's rect you can use the event's location to probe whether you'd want to ignore movements among adjacent views:
override func mouseExited(with theEvent: NSEvent) {
let hideTitle = (doc?.settings.autoHideTitle.value == true)
let location : NSPoint = theEvent.locationInWindow
switch theEvent.trackingNumber {
case closeTrackingTag:
Swift.print("close exited")
closeButton?.image = nullImage
break
default:
let vSize = self.window?.contentView?.bounds.size
// If we exit to the title bar area we're still "inside"
// and visa-versa, leaving title to content view.
if theEvent.trackingNumber == titleTrackingTag, let tSize = titleView?.bounds.size {
if location.x >= 0.0 && location.x <= (vSize?.width)! && location.y < ((vSize?.height)! + tSize.height) {
Swift.print("title -> view")
return
}
}
else
if theEvent.trackingNumber == viewTrackingTag {
if location.x >= 0.0 && location.x <= (vSize?.width)! && location.y > (vSize?.height)! {
Swift.print("view -> title")
return
}
}
mouseOver = false
updateTranslucency()
if hideTitle {
updateTitleBar(didChange: true)
}
Swift.print(String(format: "%# exited",
(theEvent.trackingNumber == titleTrackingTag
? "title" : "view")))
}
}
I have added some annotationViews at Map with init method (initialised by there id). Now I want to update specific id annotation view on click button from navigation bar.
Suppose I have added 5 annotation with ids (1, 2, 3, 4, and 5)
Added from VC:
let annotation = MapPinAnnotation(title: storeItem.name!, location: CLLocationCoordinate2DMake(Double(lat), Double(long)), id: storeItem.storeId!)
self.mapview.addAnnotation(annotation)
Initialised AnnotationView:
class MapPinAnnotation: NSObject, MKAnnotation {
var title:String?
var id:String?
private(set) var coordinate = CLLocationCoordinate2D()
init(title newTitle: String, location: CLLocationCoordinate2D, id: String) {
super.init()
self.title = newTitle
self.coordinate = location
self.id = id
}
}
ViewFor annotation method:
func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
if (annotation is MKUserLocation) {
return nil
}
if (annotation is MapPinAnnotation) {
let pinLocation = annotation as? MapPinAnnotation
// Try to dequeue an existing pin view first.
var annotationView: MKAnnotationView? = mapView.dequeueReusableAnnotationView(withIdentifier: "MapPinAnnotationView")
if annotationView == nil {
annotationView?.image = UIImage(named: Constants.Assets.PinGreen)
}
else {
annotationView?.annotation = annotation
}
return annotationView
}
return nil
}
Now I want to change image of annotation view(id 4) on click button from navigation bar.
How can I update? Please help.
Thanks in advance.
You can get specific MKAnnotationView with view(for: ) method. Try the following code:
func clickButton() {
for annotation in self.mapView.annotations {
if annotation.id == 4 {
let annotationView = self.mapView.view(for: annotation)
annotationView?.image = UIImage(named: "Image name here")
}
}
}
I'm new to Swift SpriteKit, I want to make a game like a virtual joystick and two buttons(two nodes), I've enabled the multi-touch. However, whenever I move both virtual joystick and attack Spritenode, the virtual joystick of the button seems to be Jagging. How am I gonna separate the touches of virtual joystick from touches attackbutton
class GameScene: SKScene {
var defend : Bool = false
var attack : Bool = false
var stickMove : Bool = false
var stickEnd:Bool = false
var moveattack:Bool = false
var movedefend:Bool = false
var playermovement:Bool = true
let vj1 = SKSpriteNode(imageNamed: "vj1")
let vj2 = SKSpriteNode(imageNamed: "vj2")
let player = SKSpriteNode(imageNamed: "player")
let rotationSpeed :CGFloat = CGFloat(M_PI)
let rotationOffSet : CGFloat = -CGFloat(M_PI/2.0)
let attackvj = SKSpriteNode(imageNamed: "attackvj")
let defendvj = SKSpriteNode(imageNamed: "defendvj")
private var touchPosition: CGFloat = 0
private var targetZRotation: CGFloat = 0
override func didMove(to view: SKView) {
self.view?.isMultipleTouchEnabled = true
self.backgroundColor = SKColor.black
//position of joystick
vj1.zPosition = 1
vj1.xScale = 1.5
vj1.yScale = 1.5
self.addChild(vj1)
vj1.position = CGPoint(x: self.size.width*15/100, y:self.size.height*30/100)
vj2.zPosition = 1
vj2.xScale = 1.5
vj2.yScale = 1.5
self.addChild(vj2)
vj2.position = vj1.position
player.zPosition = 0
player.physicsBody = SKPhysicsBody(rectangleOf: player.size)
player.physicsBody!.affectedByGravity = false
player.position = CGPoint(x: self.size.width/2, y:self.size.height/2)
self.addChild(player)
attackvj.anchorPoint = CGPoint(x: 0.5, y:0.5)
attackvj.position = CGPoint(x: self.size.width*80/100, y:self.size.height*30/100)
attackvj.xScale = 2.0
attackvj.yScale = 2.0
self.addChild(attackvj)
defendvj.anchorPoint = CGPoint(x: 0.5, y:0.5)
defendvj.position = CGPoint(x: self.size.width*90/100, y:self.size.height*50/100)
defendvj.xScale = 2.0
defendvj.yScale = 2.0
self.addChild(defendvj)
vj1.alpha = 0.4
vj2.alpha = 0.4
attackvj.alpha = 0.4
defendvj.alpha = 0.4
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
for touch in (touches){
let location = touch.location(in: self)
if vj2.contains(location){
stickEnd = false
stickMove = true
}
if defendvj.contains(location){
defend = true
}
if attackvj.contains(location){
attack = true
attackvj.xScale = 2.5
attackvj.yScale = 2.5
}
if(stickMove == true && attack == true){
moveattack = true
}
if(stickMove == true && defend == true){
movedefend = true
}
}
}
override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
for touch in (touches){
let location = touch.location(in: self)
let previousLocation = touch.previousLocation(in: self)
let v = CGVector(dx: location.x - vj1.position.x, dy: location.y - vj1.position.y)
print("locationsss" , location , "previouslocationsss", previousLocation)
let angle = atan2(v.dy, v.dx)
targetZRotation = angle + rotationOffSet
let length:CGFloat = vj1.frame.size.height / 2
let xDist:CGFloat = sin(angle - 1.57079633) * length
let yDist:CGFloat = cos(angle - 1.57079633) * length
if(stickMove == true){
if(vj1.frame.contains(location)){
vj2.position = location
}
else{
vj2.position = CGPoint(x: vj1.position.x - xDist, y: vj1.position.y + yDist)
}
if(attackvj.frame.contains(location)){//How am I gonna make this location in attackvj, not to influence my joystick location?
}
}
}
}
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
if(stickMove == true && attack == false && defend == false){
let move:SKAction = SKAction.move(to: vj1.position, duration: 0.2)
move.timingMode = .easeOut
vj2.run(move)
stickEnd = true
stickMove = false
}
if(attack == true){
attack = false
attackvj.xScale = 2.0
attackvj.yScale = 2.0
moveattack = false
}
if(defend == true){
defend = false
movedefend = false
}
}
override func update(_ currentTime: TimeInterval) {
//rotation
if (stickEnd == false) {
var angularDisplacement = targetZRotation - player.zRotation
if angularDisplacement > CGFloat(M_PI) {
angularDisplacement = (angularDisplacement - CGFloat(M_PI)*2)
}
else if angularDisplacement < -CGFloat(M_PI) {
angularDisplacement = (angularDisplacement + CGFloat(M_PI)*2)
}
if abs(angularDisplacement) > rotationSpeed*(1.0/60.0){
let angularVelocity = angularDisplacement < 0 ? -rotationSpeed : rotationSpeed
player.physicsBody!.angularVelocity = angularVelocity
} else {
player.physicsBody!.angularVelocity = 0
player.zPosition = targetZRotation
}
}
else{
player.physicsBody!.angularVelocity = 0
}
//movement but use attack button to testing
if (attack == true)
{
player.position = CGPoint(x:player.position.x + cos(player.zRotation + 1.57079633),y:player.position.y + sin(player.zRotation + 1.57079633))
}
}
The problem you are facing is that you are mixing the contexts for your touches. This is making things more difficult and complicated than they need to be.
The easiest thing to do would be to make your virtual joystick a separate SKSpriteNode class that tracks its own touches and reports them. Same with the buttons - they track their own touches and report their state.
But if you want to continue with your current approach of having a high-level object track multiple touches, what you want to do is capture the context that each touch is associated with in touchesBegan, and then just update things on touchesMoved as necessary, canceling the touches in touchesEnded.
For instance, you want to associate a particular touch with the virtual joystick, because you don't want weirdness if they drag their finger off of it and over to the button, say. And you want to know exactly which touch is lifted off when the user lifts a finger.
Here's some sample code that should illustrate the process:
//
// This scene lets the user drag a red and a blue box
// around the scene. In the .sks file (or in the didMove
// function), add two sprites and name them "red" and "blue".
//
import SpriteKit
import GameplayKit
class GameScene: SKScene {
private var redTouch:UITouch?
private var blueTouch:UITouch?
override func didMove(to view: SKView) {
super.didMove(to: view)
isUserInteractionEnabled = true
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
// Grab some references to the red and blue sprites.
// (They must be direct children of the scene, or the
// paths must be amended.)
guard let redBox = childNode(withName: "red") else { return }
guard let blueBox = childNode(withName: "blue") else { return }
for touch in touches {
// Get the location of the touch in SpriteKit Scene space.
let touchLocation = touch.location(in: self)
// Check to see if the user is touching one of the boxes.
if redBox.contains( touchLocation ) {
// If we already have a touch in the red box, do nothing.
// Otherwise, make this our new red touch.
redTouch = touch
} else if blueBox.contains( touchLocation ) {
// If we already have a touch in the blue box, do nothing.
// Otherwise, make this our new blue touch.
blueTouch = touch
}
}
}
override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
// We have already established which touches are active,
// and we have already tied them to the two contexts, so
// we just need to read their current location and update
// the location of the red and blue boxes for the touches
// that are active.
if let redTouch = redTouch {
guard let redBox = childNode(withName: "red") else { return }
let location = redTouch.location(in:self)
redBox.position = location
}
if let blueTouch = blueTouch {
guard let blueBox = childNode(withName: "blue") else { return }
let location = blueTouch.location(in:self)
blueBox.position = location
}
}
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
// The parameter touches contains a list of ending touches,
// so we check the touches we are currently tracking to
// see if they are newly lifted. If so, we cancel them.
if let touch = redTouch {
if touches.contains( touch ) {
redTouch = nil
}
}
if let touch = blueTouch {
if touches.contains( touch ) {
blueTouch = nil
}
}
}
}
In the above code, we have separated out the touches on the red box and the blue box. We always know which touch is dragging the red box around and which touch is dragging the blue box around, if any. This is a simple example, but it's generalizable to your situation, where you'd have touches for the virtual joystick and each individual button.
Note that this approach works well for multitouch elements, too. If you have a map that you want to be zoomable, you can keep track of two touches so that you can compare them for pinch gestures. That way, if your pinch gesture accidentally strays over a button, you've already marked it as part of the pinch gesture, and know not to start triggering that button.
But again, a better approach would be to have a separate SKSpriteNode subclass that just tracks the joystick touches and reports its state to some higher-level manager class. You already know everything you need to know to do this - it's like what you have without all the extra checking to see if there are other buttons pressed. Same with the buttons. The only new part would be messaging "up the chain" to a manager, and that's pretty straightforward to deal with.
I'm trying to solving a problem where a sprite node can jump up through a platform but cannot jump back down. I tried using this code:
override func didMove(to view: SKView) {
if (thePlayer.position.y > stonePlatform1.position.y) == true {
stonePlatform1.physicsBody = SKPhysicsBody(rectangleOf: CGSize(width: stonePlatform.size.width * 0.9, height: stonePlatform.size.height * 0.75))
stonePlatform1.physicsBody!.isDynamic = false
stonePlatform1.physicsBody!.affectedByGravity = false
stonePlatform1.physicsBody!.categoryBitMask = BodyType.object.rawValue
stonePlatform1.physicsBody!.contactTestBitMask = BodyType.object.rawValue
stonePlatform1.physicsBody!.restitution = 0.4
}
}
The idea was to turn on the physics body of the platform on when the player is above the platform. However, the physics doesn't work at all when I use this code. In fact I tried using this code:
override func didMove(to view: SKView) {
if (thePlayer.position.y < stonePlatform1.position.y) == true {
stonePlatform1.physicsBody = SKPhysicsBody(rectangleOf: CGSize(width: stonePlatform.size.width * 0.9, height: stonePlatform.size.height * 0.75))
stonePlatform1.physicsBody!.isDynamic = false
stonePlatform1.physicsBody!.affectedByGravity = false
stonePlatform1.physicsBody!.categoryBitMask = BodyType.object.rawValue
stonePlatform1.physicsBody!.contactTestBitMask = BodyType.object.rawValue
stonePlatform1.physicsBody!.restitution = 0.4
}
}
and the physics doesn't turn on either. If the IF statement isn't there, the physics does work all of the time.
You can use the node velocity for this platforms, like this:
SpriteKit - Swift 3 code:
private var up1 : SKSpriteNode!
private var down1 : SKSpriteNode!
private var down2 : SKSpriteNode!
private var player : SKSpriteNode!
override func didMove(to view: SKView) {
up1 = self.childNode(withName: "up1") as! SKSpriteNode
down1 = self.childNode(withName: "down1") as! SKSpriteNode
down2 = self.childNode(withName: "down2") as! SKSpriteNode
player = self.childNode(withName: "player") as! SKSpriteNode
up1.physicsBody?.categoryBitMask = 0b0001 // Mask for UoPlatforms
down1.physicsBody?.categoryBitMask = 0b0010 // Mask for downPlatforms
down2.physicsBody?.categoryBitMask = 0b0010 // Same mask
}
override func update(_ currentTime: TimeInterval) {
player.physicsBody?.collisionBitMask = 0b0000 // Reset the mask
// For UP only Platform
if (player.physicsBody?.velocity.dy)! < CGFloat(0.0) {
player.physicsBody?.collisionBitMask |= 0b0001 // The pipe | operator adds the mask by binary operations
}
// For Down only platforms
if (player.physicsBody?.velocity.dy)! > CGFloat(0.0) {
player.physicsBody?.collisionBitMask |= 0b0010 // The pipe | operator adds the mask by binary operations
}
}
Source code with example here: https://github.com/Maetschl/SpriteKitExamples/tree/master/PlatformTest
The example show this:
Green platforms -> Down Only
Red platforms -> Up only
You could try just starting with the physics body as nil and then set the physics values to it after the player is above it. Also, this kind of code should be in the update function. Having it in didMove only lets it get called once.
override func update(_ currentTime: TimeInterval){
if (thePlayer.position.y < stonePlatform1.position.y) && stonePlatform1.physicsBody != nil {
stonePlatform1.physicsBody = nil
}else if (thePlayer.position.y > stonePlatform1.position.y) && stonePlatform1.physicsBody == nil{
setPhysicsOnPlatform(stonePlatform1)
}
}
func setPhysicsOnPlatform(_ platform: SKSpriteNode){
platform.physicsBody = SKPhysicsBody(rectangleOf: CGSize(width: stonePlatform.size.width * 0.9, height: stonePlatform.size.height * 0.75))
...
//the rest of your physics settings
}
You should also do some handling for the height of the player and your anchorPoint. Otherwise if your anchorPoint is (0,0) and the player is halfway through the platform, the physics will be applied and a undesirable result will occur.