嘿，我有一款3D游戏还不是游戏。但是它有一个SceneKit 3D场景和一个用于HUD / Controls的overlayskscene。 “base”是操纵杆的基础，而球是手柄，问题是操纵杆根本不移动，除非scnView.allowsCameraControl = true。我觉得很奇怪。这是我的整个视图控制器代码，所以没有遗漏，如果你想，你可以直接复制并粘贴到Xcode中，看看我在说什么。有帮助吗？ 代码：
import iAd
import UIKit
import GameKit
import SceneKit
import StoreKit
import SpriteKit
import QuartzCore
import Foundation
import AVFoundation
import AudioToolbox
class GameViewController: UIViewController, ADBannerViewDelegate, SKPhysicsContactDelegate, SKSceneDelegate, SCNSceneRendererDelegate, SCNPhysicsContactDelegate{
var stickActive:Bool = false
let base = SKSpriteNode(imageNamed:"VirtualJoystickBase")
let ball = SKSpriteNode(imageNamed:"VirtualJoyStickHandle")
let ship = SKSpriteNode(imageNamed:"Ship")
var ButtonA = SKSpriteNode(imageNamed:"GreenAButton")
var ButtonO = SKSpriteNode(imageNamed:"CircleButton")
var ButtonY = SKSpriteNode(imageNamed:"YellowYButton")
var ButtonSquare = SKSpriteNode(imageNamed:"BlueSquareButton")
let FieldScene = SCNScene(named: "art.scnassets/TesingCampusField.dae")!
let GuyScene = SCNScene(named: "art.scnassets/Guy.dae")!
let overlayScene = SKScene(size: CGSizeMake(100, 100))
override func viewDidLoad() {
super.viewDidLoad()
let scnView = self.view as! SCNView
scnView.overlaySKScene = overlayScene
scnView.backgroundColor = UIColor.whiteColor()
scnView.scene = FieldScene
scnView.delegate = self
scnView.overlaySKScene!.delegate = self
scnView.overlaySKScene!.anchorPoint = CGPointMake(0, 0)
scnView.overlaySKScene!.physicsWorld.contactDelegate = self
scnView.overlaySKScene!.physicsWorld.gravity = CGVectorMake(0.0, 0.0)
scnView.allowsCameraControl = true
scnView.showsStatistics = false
let Guy1: SCNNode = GuyScene.rootNode.childNodeWithName("Bob_014", recursively: true)!
FieldScene.rootNode.addChildNode(Guy1)
//----Positioning-the-Base-of-the-Joystick-----------
base.size = CGSize(width: 14, height: 24)
base.position = CGPointMake(15, 19)
base.zPosition = 0
overlayScene.addChild(base)
//----Positing-the-Ball/Joystick-----------
ball.size = CGSize(width: 10, height: 17)
ball.position = base.position
ball.zPosition = 1
overlayScene.addChild(ball)
//----A-Button--Creation -------------------
ButtonA.size = CGSize(width: 6, height: 9)
ButtonA.anchorPoint = CGPointMake(-13.3, -0.5)
ButtonA.zPosition = 0
overlayScene.addChild(ButtonA)
//----B-Button--Creation -------------------
ButtonO.size = CGSize(width: 6, height: 9)
ButtonO.anchorPoint = CGPointMake(-14.4, -1.7)
ButtonO.zPosition = 0
overlayScene.addChild(ButtonO)
//----C-Button--Creation -------------------
ButtonSquare.size = CGSize(width: 6, height: 9)
ButtonSquare.anchorPoint = CGPointMake(-12.2, -1.7)
ButtonSquare.zPosition = 0
overlayScene.addChild(ButtonSquare)
//----C-Button--Creation -------------------
ButtonY.size = CGSize(width: 6, height: 9)
ButtonY.anchorPoint = CGPointMake(-13.3, -2.7)
ButtonY.zPosition = 0
overlayScene.addChild(ButtonY)
//---Setting-Up-Ships-Position/PhysicsBody---------------------
ship.position = CGPointMake(0, 100)
ship.size = CGSize(width: 80, height: 80)
ship.physicsBody?.dynamic = true
ship.physicsBody?.allowsRotation = true
ship.physicsBody?.affectedByGravity = true
ship.physicsBody = SKPhysicsBody(texture: SKTexture(imageNamed: "Ship"), size: ship.size)
ship.physicsBody!.friction = 0
ship.physicsBody!.restitution = 0
ship.physicsBody!.linearDamping = 0
ship.physicsBody!.angularDamping = 0
//--------------------------
let cameraNode = SCNNode()
cameraNode.camera = SCNCamera()
GuyScene.rootNode.addChildNode(cameraNode)
cameraNode.position = SCNVector3(x: 0, y: 5, z: 15)
//-----------------------------------------------
let lightNode = SCNNode()
lightNode.light = SCNLight()
lightNode.light!.type = SCNLightTypeOmni
lightNode.position = SCNVector3(x: 0, y: 10, z: 10)
FieldScene.rootNode.addChildNode(lightNode)
//-----------------------------------------------
let ambientLightNode = SCNNode()
ambientLightNode.light = SCNLight()
ambientLightNode.light!.type = SCNLightTypeAmbient
ambientLightNode.light!.color = UIColor.darkGrayColor()
FieldScene.rootNode.addChildNode(ambientLightNode)
//----------------------------------------------
}
func YButtonPressed() {
let YButtonPressed = SKTexture(imageNamed: "YellowYButtonPressed")
let OrignalButtonY = SKTexture(imageNamed:"YellowYButton")
let YButtonPressedAnimation = SKAction.animateWithTextures([YButtonPressed, OrignalButtonY], timePerFrame: 0.2)
let RunYButtonPressedAnimation = SKAction.repeatAction(YButtonPressedAnimation, count: 1)
ButtonY.runAction(RunYButtonPressedAnimation)
}
func OButtonPressed() {
let OButtonPressed = SKTexture(imageNamed: "CircleButtonPressed")
let OrignalButtonO = SKTexture(imageNamed:"CircleButton")
let OButtonPressedAnimation = SKAction.animateWithTextures([OButtonPressed, OrignalButtonO], timePerFrame: 0.2)
let RunOButtonPressedAnimation = SKAction.repeatAction(OButtonPressedAnimation, count: 1)
ButtonO.runAction(RunOButtonPressedAnimation)
}
func SquareButtonPressed() {
let SquareButtonPressed = SKTexture(imageNamed: "BlueSquareButtonPressed")
let OrignalButtonSquare = SKTexture(imageNamed:"BlueSquareButton")
let SquareButtonPressedAnimation = SKAction.animateWithTextures([SquareButtonPressed, OrignalButtonSquare], timePerFrame: 0.2)
let RunSquareButtonPressedAnimation = SKAction.repeatAction(SquareButtonPressedAnimation, count: 1)
ButtonSquare.runAction(RunSquareButtonPressedAnimation)
}
func AButtonPressed() {
let AButtonPressed = SKTexture(imageNamed: "GreenAButtonPressed")
let OrignalButtonA = SKTexture(imageNamed:"GreenAButton")
let AButtonPressedAnimation = SKAction.animateWithTextures([AButtonPressed, OrignalButtonA], timePerFrame: 0.2)
let RunAButtonPressedAnimation = SKAction.repeatAction(AButtonPressedAnimation, count: 1)
ButtonA.runAction(RunAButtonPressedAnimation)
}
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
/* Called when a touch begins */
for touch: AnyObject in touches {
let location = touch.locationInNode(self.overlayScene)
if (CGRectContainsPoint(base.frame, location)) {
print("stickActive = true")
stickActive = true
} else {
print("stickActive = false")
stickActive = false
}
}
for touch: AnyObject in touches {
let location1 = touch.locationInNode(self.overlayScene)
if self.overlayScene.nodeAtPoint(location1) == self.ButtonA {
AButtonPressed()
print("AButtonPressed")
}
}
for touch: AnyObject in touches {
let location2 = touch.locationInNode(self.overlayScene)
if self.overlayScene.nodeAtPoint(location2) == self.ButtonO {
OButtonPressed()
print("OButtonPressed")
}
}
for touch: AnyObject in touches {
let location3 = touch.locationInNode(self.overlayScene)
if self.overlayScene.nodeAtPoint(location3) == self.ButtonY {
YButtonPressed()
print("YButtonPressed")
}
}
for touch: AnyObject in touches {
let location4 = touch.locationInNode(self.overlayScene)
if self.overlayScene.nodeAtPoint(location4) == self.ButtonSquare {
SquareButtonPressed()
print("SquarButtonPressed")
}
}
}
override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {
for touch: AnyObject in touches {
let location = touch.locationInNode(self.overlayScene)
if self.overlayScene.nodeAtPoint(location) == self.ball {
if (stickActive == true) {
let v = CGVector(dx: location.x - base.position.x, dy: location.y - base.position.y)
let angle = atan2(v.dy, v.dx)
//println( deg + 180)
let length:CGFloat = base.frame.size.height / 2
let xDist:CGFloat = sin(angle - 1.57879633) * length
let yDist:CGFloat = cos(angle - 1.57879633) * length
if (CGRectContainsPoint(base.frame, location)) {
ball.position = location
} else {
ball.position = CGPointMake( base.position.x - xDist, base.position.y + yDist)
}
ship.zRotation = angle - 1.57879633
let calcRotation : Float = Float(angle - 1.57879633) + Float(M_PI_2);
let intensity : CGFloat = 200.0 // put your value
let xVelocity = intensity * CGFloat(cosf(calcRotation))
let yVelocity = intensity * CGFloat(sinf(calcRotation))
let vector : CGVector = CGVectorMake(xVelocity, yVelocity)
//Apply force to spaceship
ship.physicsBody?.applyForce(vector)
// ends stackActive
}
}
}
}
override func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {
for touch: AnyObject in touches {
let location = touch.locationInNode(self.overlayScene)
if self.overlayScene.nodeAtPoint(location) == self.ball {
if (stickActive == true) {
let move:SKAction = SKAction.moveTo(base.position, duration: 0.05)
move.timingMode = .EaseOut
ball.runAction(move)
}
}
}
}
//====================================================================
override func shouldAutorotate() -> Bool {
return true
}
//====================================================================
override func prefersStatusBarHidden() -> Bool {
return true
}
//====================================================================
override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
if UIDevice.currentDevice().userInterfaceIdiom == .Phone {
return .AllButUpsideDown
} else {
return .All
}
}
//====================================================================
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Release any cached data, images, etc that aren't in use.
}
}
答案 0 :(得分：1)
在SceneKit中存在一个问题，即在2D场景中进行更改但不改变3D场景时，SpriteKit叠加层不会自动重绘。换句话说，仅在需要重绘3D视图时才重绘2D覆盖。
您可以将playing的{{1}}属性设置为SCNView来解决此问题。或者，只要您对叠加层场景进行更改，就可以致电YES。