From: Nate Lindstrom <nathan@...>
Date: 2011-12-09T05:11:11+09:00
Subject: Greed Dice Game Scoring from Ruby Koans

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Hey everyone!  I'm a long-time lurker, and this is my first post.  I'm
working through the Edgecase Ruby Koans (http://www.rubykoans.com/), and
have written a solution to scoring the game of dice called "greed."
However, while it passes all the assertion tests, I am wondering if my code
is sufficiently "Rubyesque"?  I appreciate any and all feedback!

 

# Greed is a dice game where you roll up to five dice to accumulate

# points.  The following "score" function will be used calculate the

# score of a single roll of the dice.

#

# A greed roll is scored as follows:

#

# * A set of three ones is 1000 points

#

# * A set of three numbers (other than ones) is worth 100 times the

#   number. (e.g. three fives is 500 points).

#

# * A one (that is not part of a set of three) is worth 100 points.

#

# * A five (that is not part of a set of three) is worth 50 points.

#

# * Everything else is worth 0 points.

#

#

# Examples:

#

# score([1,1,1,5,1]) => 1150 points

# score([2,3,4,6,2]) => 0 points

# score([3,4,5,3,3]) => 350 points

# score([1,5,1,2,4]) => 250 points

#

# More scoring examples are given in the tests below:

#

# Your goal is to write the score method.

 

def score(dice)

  total = 0

  dice.uniq.each do |num|

    if num == 1

      if dice.count(1) >= 3

        total += 1000

        total += 100 * (dice.count(1) - 3)

      else

        total += 100 * dice.count(1)

      end

    elsif num == 5

      if dice.count(5) >= 3

        total += 5  * 100

        total += 50 * (dice.count(5) - 3)

      else

        total += 50 * dice.count(5)

      end

    else

      total += num * 100 if dice.count(num) >= 3

    end

  end

  total

end

 


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