Add the menacePlayer function to the KotlinInvadersView class.

KotlinInvadersView.kt

private fun menacePlayer() {
    if (uhOrOh) {
        // Play Uh
        soundPlayer.playSound(SoundPlayer.uhID)

    } else {
        // Play Oh
        soundPlayer.playSound(SoundPlayer.ohID)
    }

    // Reset the last menace time
    lastMenaceTime = System.currentTimeMillis()
    // Alter value of uhOrOh
    uhOrOh = !uhOrOh

}