SnakeApp.swift

import SwiftUI

@main
struct SnakeApp:App {
    var body:some Scene {
        WindowGroup {
            ZStack {
                Color.black
                    .edgesIgnoringSafeArea(.all)
                ContentView(state:ViewState(
                    game:createGame(size: (90,50))),
                            pixelFactor:5.0)
            }
        }
    }
}

final class ViewState:ObservableObject {
    @Published var game:Game
    @Published var target:Coordinate?

    init(game g:Game) {
        game = g
        game.register { self.game = g }
    }
}