State Toggle Button

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• using { /Fortnite.com/UI }
  using { /UnrealEngine.com/Temporary/UI }
  
  StateButtonDefaultText<public><localizes>:message="Default Text"
  
  state_button_option<public> := interface<castable>:
      Title<public>:message
      GetTitle<public>():message=
          Title
  
  state_button_default_option<public> := class(state_button_option):
      Title<override>:message = StateButtonDefaultText
  
  state_button_base<public> := class<abstract>:
      Button<public>:text_button_base
      Options<public>:[]state_button_option
  
      var<private> CurrentOptionIndex<public>:int = 0
  
      GetWidget<public>():widget=
          Update()
          Button
  
      Update<public>():void=
          ActiveIndex := Clamp(CurrentOptionIndex, 0, Options.Length - 1)
          if:
              TargetOption := Options[ActiveIndex]
          then:
              Button.SetText(TargetOption.GetTitle())
  
      SetOption<public>(Index:int):void=
          set CurrentOptionIndex = Clamp(Index, 0, Options.Length - 1)
          Update()