Guess The Flag - Day 24 Challenge

import SwiftUI

struct FlagImage: View {

    var someImage: String

    var body: some View {
        Image(someImage)
            .renderingMode(.original)
            .clipShape(Capsule())
            .overlay(Capsule().stroke(Color.black, lineWidth: 1))
            .shadow(color: .black, radius: 2)    }
}



struct ContentView: View {

    @State private var countries = ["Estonia", "France", "Germany", "Ireland", "Italy", "Nigeria", "Poland", "Russia", "Spain", "UK", "US"].shuffled()

    @State private var correctAnswer = Int.random(in: 0...2)

    @State private var showingScore = false
    @State private var scoreTitle = ""

    @State private var score = 0

    var body: some View {

        ZStack {

            LinearGradient(gradient: Gradient(colors: [.blue, .black]), startPoint: .top, endPoint: .bottom)
                .edgesIgnoringSafeArea(.all)

            VStack(spacing: 30) {

                VStack {
                    Text("Tap the flag of")
                        .foregroundColor(.white)
                    Text(countries[correctAnswer])
                        .foregroundColor(.white)
                        .font(.largeTitle)
                        .fontWeight(.black)
                }

                ForEach(0..<3) { number in
                    Button(action: {
                        self.flagTapped(number)
                    }) {
                        FlagImage(someImage: self.countries[number])
                    }
                }

                Text("Your score is: \(score)")
                    .font(.largeTitle)
                    .foregroundColor(Color.white)

                Spacer()
            }
        }
        .alert(isPresented: $showingScore) {
            Alert(title: Text(scoreTitle), message: Text("Your score is \(score)"), dismissButton: .default(Text("Continue")) {
                self.askQuestion()
                })
        }

    }

    func flagTapped(_ number: Int) {
        if number == correctAnswer {
            scoreTitle = "Correct"
            score += 1
        } else {
            scoreTitle = "Wrong, that's the flag of \(countries[number])"
            score -= 1
        }

        showingScore = true
    }

    func askQuestion() {
        countries.shuffle()
        correctAnswer = Int.random(in: 0...2)
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}