آموزش 13: اشیاء قابل مشاهده و اشیاء محیط زیست در Swiftui

struct CounterView: View {
    @State private var count = 0

    var body: some View {
        VStack {
            Text("Count: \(count)")
            Button("Increment") {
                count += 1
            }
        }
    }
}

class CounterModel: ObservableObject {
    @Published var count = 0
}

struct CounterView: View {
    @ObservedObject var model = CounterModel()

    var body: some View {
        VStack {
            Text("Count: \(model.count)")
            Button("Increment") {
                model.count += 1
            }
        }
    }
}

class GameSettings: ObservableObject {
    @Published var score = 0
}

struct ScoreView: View {
    @EnvironmentObject var settings: GameSettings

    var body: some View {
        Text("Score: \(settings.score)")
    }
}

class GameModel: ObservableObject {
    @Published var score = 0
    @Published var position = CGPoint(x: 100, y: 100)
}

struct GameView: View {
    @EnvironmentObject var game: GameModel

    var body: some View {
        ZStack {
            Color.blue.edgesIgnoringSafeArea(.all)
            Circle()
                .fill(Color.red)
                .frame(width: 50, height: 50)
                .position(game.position)
                .onTapGesture {
                    game.score += 1
                    game.position = CGPoint(x: CGFloat.random(in: 50...350), y: CGFloat.random(in: 50...700))
                }

            VStack {
                Text("Score: \(game.score)")
                    .font(.largeTitle)
                    .padding()
                Spacer()
            }
        }
    }
}

@main
struct MyApp: App {
    @StateObject private var game = GameModel()

    var body: some Scene {
        WindowGroup {
            GameView()
                .environmentObject(game)
        }
    }
}