view not changing until next button press - swift

Question

I'm trying to change views after an array goes unchanged for one iteration cycle. However, it takes one extra button press to change views.
import SwiftUI
struct ContentView: View {
#State private var numbers: [String] = ["4", "1", "2", "5", "3"]
#State private var numbersCheck: [String] = []
#State private var index: Int = 0
#State private var done: Bool = false
var body: some View {
if done {
DoneView()
} else {
HStack {
Button(action: {
click(swap: false)
}) {
Text(numbers[index])
}
Button(action: {
click(swap: true)
}) {
Text(numbers[index + 1])
}
}
}
}
func click(swap: Bool) {
if index == 0 {
numbersCheck = numbers
}
if swap {
numbers.swapAt(index, index + 1)
}
if index < numbers.count - 2 {
index += 1
} else {
if numbersCheck != numbers {
index = 0
} else {
done = true
}
}
}
}
struct DoneView: View {
var body: some View {
Text("Done!")
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
I've tried different approaches to changing views (e.g. different structs, one struct/different view bodies, binding variables, etc.), but nothing's working.