ContentView.swift

struct ContentView: View {
    @State private var amplitude = 10.0
    @State private var frequency = 0.1

    var body: some View {
        ZStack {
            Wave(amplitude: amplitude, frequency: frequency)
                .fill(Color.blue)
                .frame(height: 300.0)
                .animation(.easeInOut(duration: 3))
            Button(action: toggleAnimation, label: {
                Text("Animate")
            })
            .padding(4)
            .background(Color.red)
            .cornerRadius(8)
            .foregroundColor(.white)
        }
    }

    func toggleAnimation() {
        amplitude = amplitude <= 15.0 ? Double.random(in: 30.0...60.0) : Double.random(in: 5.0...15.0)
        frequency = frequency <= 0.2 ? Double.random(in: 0.2...0.4) : Double.random(in: 0.05...0.2)
    }
}