How to use EnvironmentObject in an init()

I am trying to use an EnvironmentObject in an init. I am aware that this is not possible because it hasn't been initialised yet.

But what is the solution? I have tried loading the scene.gameCenterManger in .onAppear but that doesn't seem to work.

I want to use @State for my gamescene variable, because SKScene will reset itself when the view does a refresh.

struct GameSceneView: View {

    @EnvironmentObject var gameCenterManager:GameCenterManager

@State var scene = GameScene()

    init() {
       scene.size = CGSize(width: 1000, height: 1800)
      scene.scaleMode = .aspectFill

      // doing it as below will throw an error.
      //scene.gameCenterManager = gameCenterManager

    }

    var body: some View {

        SpriteView(scene: scene )
            .environmentObject(gameCenterManager)
            .frame(width: UIScreen.main.bounds.size.width, height: UIScreen.main.bounds.size.height)
            .ignoresSafeArea()
            .overlay(ImageOverlay(), alignment: .bottomTrailing)
            .onAppear{ scene.gameCenterManager = gameCenterManager  }

    }
}