lighttroupe/luz-next

class VariableInputButtonPair < VariableInput
    title                "Button Pair"
    description "Activation rises when one button is pressed, lowers when a different button is pressed, and stays steady when neither (or both) are pressed."

    categories :button

    setting 'button_on', :button, :summary => '% on'
    setting :on_time, :timespan
    setting 'button_off', :button, :summary => '% off'
    setting :off_time, :timespan

    setting 'starting_value', :float, :simple => true, :range => 0.0..1.0, :default => 0.0..1.0

    def value
        return starting_value if first_frame?

        on = $engine.button_down?(button_on)
        off = $engine.button_down?(button_off)

        if on && off
            last_value
        elsif on
            return 1.0 if on_time.instant?
            last_value + ($env[:frame_time_delta] / on_time.to_seconds)
        elsif off
            return 0.0 if off_time.instant?
            last_value - ($env[:frame_time_delta] / off_time.to_seconds)
        else
            last_value
        end
    end
end