initial commit

rank.rb

@@ -0,0 +1,70 @@
+#!/usr/bin/env ruby
+
+class Array
+	def combinations n
+		result = Array.new
+		if n > 0
+			(0 .. self.length - n).each do |i|
+				combs = self[i + 1 .. -1].combinations(n - 1)
+				combs = [[]] if combs.empty?
+				combs.collect {|comb| [self[i]] + comb}.each {|x| result << x}
+			end
+		end
+		return result
+	end
+end
+
+require 'card'
+
+def score5(hand,verbose=false)
+	# reject illegal hands (hands with duplicate cards)
+	return nil if hand.sort.uniq.size < 5
+	return 0
+end
+
+def score10(hand,verbose=false)
+	# reject illegal hands (hands with duplicate cards)
+	return nil if hand.sort.uniq.size < 10
+
+	# count number of suits
+	suits = Hash.new(0)
+	ranks = Hash.new(0)
+	hand.each { |c| ranks[c[0]] += 1 }
+	hand.each { |c| suits[c[1]] += 1 }
+
+	puts ranks.inspect
+	puts suits.inspect
+	
+	return 0
+end
+
+
+def score(hand_string)
+	# split into Cards
+	cards = hand_string.scan(/../).collect { |s| Card.new(s) }.sort
+	puts cards.inspect
+
+	# create all permutations of two 5 card hands
+	hand_scores = Hash.new
+	cards.combinations(5).each do |c|
+		other = cards - c
+		hand_scores[ [c.sort,other.sort].sort ] = nil
+	end
+
+	puts hand_scores.inspect
+	puts hand_scores.size
+
+	# now score each set of two 5 card hands
+	hand_scores.each do |k,v|
+		score_a = score5(k[0])
+		score_b = score5(k[1])
+		hand_scores[k] = score_a + score_b unless score_a.nil? || score_b.nil?
+	end
+
+	# score the 10 card hand
+	hand_scores[ cards.sort ] = score10(cards)
+end
+
+#score('tsjsqsksastcjcqckcac')
+
+