Camera won't follow sprite

Question

I am trying to make a game on swift SpriteKit (an RPG more specifically). I am having an issue with making the camera follow my character. So far all that happens is the camera appears off screen and you can't even see the character. Thanks!

import SpriteKit

class GameScene: SKScene {
     let cam = SKCameraNode()
     let james = SKSpriteNode()
     override func didMove(to view: SKView) {
          self.anchorPoint = .zero
          var background = SKSpriteNode(imageNamed: "image-3")
          background.size = CGSize(width: 1500, height: 1000);
          background.position = CGPoint(x: frame.size.width / 2, y: frame.size.height / 2)
          addChild(background)
          view.ignoresSiblingOrder = false

          self.camera = cam

          let james = Player()
          james.size = CGSize(width: 40, height: 40)
          james.position = CGPoint(x: self.size.width / 2, y: self.size.height / 2)
          james.zPosition = 1

          self.addChild(james)

          }
    override func didSimulatePhysics() {
         self.camera!.position = james.position
    }
}

Answer 1

I don't see any physics happening in the code you pasted. So likely didSimulatePhysics isn't getting called. try moving the self.camera!.position = james.position to the update function.

edit

a lot of trouble lately seems to stem from the fact that the scene is being paused by default. try setting...

self.isPaused = false

inside

override func didMove(to view: SKView)

and putting abreak point on

self.camera!.position = james.position

to ensure that it is getting called

Answer 2

You need to add camera to your scene. I would recommend making camera a child of James so that it always follows James

import SpriteKit

class GameScene: SKScene {
     let cam = SKCameraNode()
     let james = SKSpriteNode()
     override func didMove(to view: SKView) {
          self.anchorPoint = .zero
          var background = SKSpriteNode(imageNamed: "image-3")
          background.size = CGSize(width: 1500, height: 1000);
          background.position = CGPoint(x: frame.size.width / 2, y: frame.size.height / 2)
          addChild(background)
          view.ignoresSiblingOrder = false

          self.camera = cam

          let james = Player()
          james.size = CGSize(width: 40, height: 40)
          james.position = CGPoint(x: self.size.width / 2, y: self.size.height / 2)
          james.zPosition = 1
          James.addChild(cam)
          self.addChild(james)

     }

}