Keydown not called for objects inside an SKScene - swift

Question

I was working on a little game when I ran into a problem. I made a little test project in order to isolate the problem.
I have the following class:
class Sprite: SKSpriteNode {
override var acceptsFirstResponder: Bool { get { return true } }
init() {
super.init(texture: nil, color: .blue, size: CGSize(width: 200, height: 100))
isUserInteractionEnabled = true
}
override func keyDown(with event: NSEvent) {
position.x += 100
print("keydown")
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
I create an instance of this class in the following scene:
class GameScene: SKScene {
override var acceptsFirstResponder: Bool { get { return true } }
let x = Sprite()
override func didMove(to view: SKView) {
anchorPoint = CGPoint(x: 0.5, y: 0.5)
isUserInteractionEnabled = true
addChild(x)
}
override func keyDown(with event: NSEvent) {
x.position.y += 50
}
}
As you can see, I have a keyDown method in both classes. The one in GameScene gets called as I can clearly see the sprite (x) move upwards. The keyDown method in my Sprite class however, never gets called. I have searched the web and the only answer I've really found is that acceptsFirstResponder must be overridden and return true, but this doesn't help in my case. Any suggestions?

Answer 1

Oh my... I found a simple solution and I certainly don't know how I didn't think of it before.
Since GameScene's keyDown method actually gets called, I just called the sprite's keyDown method from there and passed the argument:
class GameScene: SKScene {
let x = Sprite()
override func didMove(to view: SKView) {
anchorPoint = CGPoint(x: 0.5, y: 0.5)
addChild(x)
}
override func keyDown(with event: NSEvent) {
x.position.y += 50
x.keyDown(with: event)
}
}
And it didn't require me to override any variables (I guess it's set to first responder by default - please correct me if this is false).