tobias.swift

import SwiftUI

final class Ticks: ObservableObject {
    @Published var seconds: Int = 58
    func start() {
        Timer.scheduledTimer(withTimeInterval: 1, repeats: true, block: { [unowned self] _ in
            
            withAnimation(.easeInOut) { self.seconds += 1 }
            if self.seconds == 60 {
                DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + .milliseconds(350)) {
                    withAnimation(.none) { self.seconds = 0 }
                }
            }
        })
    }
}

struct ContentView: View {
    @ObservedObject var ticks = Ticks()
    var body: some View {
        return ZStack {
            Rectangle()
                .frame(width: 2, height: 50)
                .offset(y: -25)
                .rotationEffect(Angle(degrees: Double(ticks.seconds) * 6))
                .onAppear {
                    self.ticks.start()
                }
            Circle().frame(width: 5, height: 5)
        }
    }
}