SpriteKit：如何创建与设备屏幕大小相同的区域？

如何解决SpriteKit：如何创建与设备屏幕大小相同的区域？

我正在SpriteKit中工作，我需要创建一个“可玩区域”，该区域与设备屏幕大小相同，以便阻止播放器移出屏幕。

我正在使用以下代码行：

var playableRect: CGRect = UIScreen.main.bounds

但是最终得到的矩形大约是设备屏幕的四分之一，该矩形的一个角位于屏幕的中心。而且设备方向不会改变这一点。

我已经尽力想了一切。什么都没用。

如何创建与设备屏幕大小相同的矩形？

在更改为包含Gene的建议后，这是我的完整编码。我通过在didMove方法中修改playableRect来合并Gene的建议。但是结果与该编码相同。

import SpriteKit
import GameplayKit
import CoreMotion

@objcmembers
class GameSceneUsingTilt: SKScene {
  
  let player = SKSpriteNode(imageNamed: "player-motorbike")
  let motionManager = cmmotionmanager()
  
  var playableRect = UIScreen.main.bounds
  
  override func didMove(to view: SKView) {
    
    let background = SKSpriteNode(imageNamed: "road")
    background.zPosition = -1
    addChild(background)
    
    if let particles = SKEmitterNode(fileNamed: "Mud") {
      let farRightPt = frame.maxX // start the emitter at the far right x-point of the view
      particles.advanceSimulationTime(10)
      particles.position.x = farRightPt
      addChild(particles)
    }
    
    let nearLeftPt = frame.minX * 3 / 4 // start the player at a quarter of the way to the far left x-point of the view
    
    player.position.x = nearLeftPt
    
    player.zPosition = 1
    
    addChild(player)
    
    motionManager.startAccelerometerUpdates()
    
    // coding below shows outline of playableRect
    
          let bounds = UIScreen.main.bounds
          let scale = UIScreen.main.scale
          // let size = CGSize(width: bounds.size.width * scale,height: bounds.size.height * scale)
    
    playableRect = CGRect(x: 0,y: 0,width: bounds.size.width * scale,height: bounds.size.height * scale)
    
    
    drawPlayableRect(rect: playableRect)
    
  }
  
  override func touchesBegan(_ touches: Set<UITouch>,with event: UIEvent?) {
    
  }
  
  override func touchesMoved(_ touches: Set<UITouch>,with event: UIEvent?) {
    
  }
  
  override func touchesEnded(_ touches: Set<UITouch>,with event: UIEvent?) {
    
  }
  
  func boundsCheck() {
    
    let playableRect = CGRect(x: frame.minX,y: frame.minY,width: frame.width,height: frame.height)
    
    let bottomLeft = CGPoint(x: playableRect.minX,y: playableRect.minY)
    let topRight = CGPoint(x: playableRect.maxX,y: playableRect.maxY)
    
    if player.position.x <= bottomLeft.x {
      player.position.x = bottomLeft.x
    }
    
    if player.position.x >= topRight.x {
      player.position.x = topRight.x
    }
    
    if player.position.y <= bottomLeft.y {
      player.position.y = bottomLeft.y
    }
    
    if player.position.y >= topRight.y {
      player.position.y = topRight.y
    }
    
  }
  
  override func update(_ currentTime: TimeInterval) {
    
    if let accelerometerData = motionManager.accelerometerData {
      
      // note that since the game will be running in landscape mode,up and down movement is controlled by the x axis and right to left movement is controlled by the y-axis...so this is the inverse of what you'd normally think.
      
      let changeX = CGFloat(accelerometerData.acceleration.y) * 4
      let changeY = CGFloat(accelerometerData.acceleration.x) * 4
      
      // you have to subtract from x position and add to the y position because device is rotated so the axises aren't what you would normally expect.
      
      player.position.x -= changeX
      player.position.y += changeY
      
      // check to make sure position isn't outside payable area:
      
      boundsCheck()
      
    }  
    
  }
  
  // function below shows outline of playableRect
  
  func drawPlayableRect(rect: CGRect) {
    let shape = SKShapeNode()
    let path = CGMutablePath()
    path.addRect(rect)
    shape.path = path
    shape.strokeColor = .red
    shape.linewidth = 4.0
    addChild(shape)
  }

}

解决方法

使用：UIScreen.main.nativeBounds