Xcode Question posted in
Whether you're new to Xcode or an experienced developer, our archive has everything you need to know about this integrated development environment (IDE). From basic functionalities to advanced features, our archive covers a wide range of Xcode-related questions and answers. Browse our archive now and find solutions to your Xcode questions, and take your app development skills to the next level

Xcode – Did touch function not working in SpriteKit

import SpriteKit


class GameScene: SKScene {
    var cam: SKCameraNode?
    var player: SKSpriteNode?
    
    
    
    
    override func didMove(to view: SKView) {
       super.didMove(to: view)
       cam = SKCameraNode()
       self.camera = cam
       self.addChild(cam!)
        player = self.childNode(withName: "player") as? SKSpriteNode
    }
    
     func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
        let touch:UITouch = touches.anyObject() as! UITouch
        let touchLocation = touch.location(in: self)

        if touchLocation.x < self.frame.size.width / 2 {
            let moveRight = SKAction.moveBy(x: 300, y: 0, duration: 1)
            player?.run(moveRight)
        } else {
            let moveLeft = SKAction.moveBy(x: -300, y: 0, duration: 1)
            player?.run(moveLeft)
            
        }
    }
    
    
    override func update(_ currentTime: TimeInterval) {
        super.update(currentTime)
        if let camera = cam, let pl = player {
          camera.position = pl.position
        }
      }
    
    
}

That is my whole game scene and the sprites I have dragged and dropped onto the screen using the sk scene. I have added a camera to the scene if that affects anything. Thanks for any help.

Tags:

2

Answers


  1. Chosen as BEST ANSWER
    0 
    import SpriteKit


class GameScene: SKScene {
    var cam: SKCameraNode?
    var player: SKSpriteNode?
    
    
    
    
    override func didMove(to view: SKView) {
       super.didMove(to: view)
       cam = SKCameraNode()
       self.camera = cam
       self.addChild(cam!)
        player = self.childNode(withName: "player") as? SKSpriteNode
    }
    
    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
      for touch in touches {
      print("touch detected")
      let touchLocation = touch.location(in: self)

        if touchLocation.x < (player?.position.x)! {
           let moveRight = SKAction.moveBy(x: 300, y: 0, duration: 1)
        print("right")
           player?.run(moveRight)
       } else {
           let moveLeft = SKAction.moveBy(x: -300, y: 0, duration: 1)
        print("Left")
           player?.run(moveLeft)
       }
      }
     }
    
    override func update(_ currentTime: TimeInterval) {
        super.update(currentTime)
        if let camera = cam, let pl = player {
          camera.position = pl.position
        }
      }
    
    
}

    I figured it out with the help of JohnL. By adding if touchLocation.x < (player?.position.x)! instead of if touchLocation.x < self.frame.size.width / 2


  2. 0

    You need to override the touches began function. It also helps to put in a print statement to show that touches are being received.

    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
  for touch in touches {
  print("touch detected")
  let touchLocation = touch.location(in: self)

   if touchLocation.x < self.frame.size.width / 2 {
       let moveRight = SKAction.moveBy(x: 300, y: 0, duration: 1)
       player?.run(moveRight)
   } else {
       let moveLeft = SKAction.moveBy(x: -300, y: 0, duration: 1)
       player?.run(moveLeft)
   }
  }
 }
    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search