title: Scala Enumeration Compare Order
body: <pre><code>object CardNum extends Enumeration
  {
      type CardNum = Value;
      val THREE, FOUR, FIVE, SIX, SEVEN, EIGHT, NINE,
      TEN, JACK, QUEEN, KING, ACE, TWO = Value
  }
  </code></pre>
  
  <p>Above shows my enumeration. I want to compare the ordering of the enumeration such as checking whether it is following the order defined in my enumeration. I tried with the compareTo() method but it will only return the value of -1, 0, or 1. Unlike Java which will return the distance between the enumeration. For example i used this code.</p>
  
  <pre><code>1 - println(CardNum.FIVE.compareTo(CardNum.EIGHT))
  2 - println(CardNum.SEVEN.compareTo(CardNum.EIGHT))
  </code></pre>
  
  <p>Both sentence 1 and sentence 2 gave me the same result of -1, which makes me unable to detect if the user is following the order of the enumeration. In Java there will be no problem, as sentence 1 will give me the result -3 and sentence 2 -1. Is there method to do so in Scala? Sorry I am quite inexperience in Scala.</p>