Re: Euchre Hands (#55)


#1

Because I’m an idiot and didn’t read the quiz spec properly, or test my
code properly - I left aces low, and expected all the number cards in
there, and made a couple of other typos. I also made it faster by
calculating things only once in the initialize instead of constantly in
the sort_value method.

Fixed now:

class Card
attr_reader :suite, :value
def initialize(string)
@value = string[0…-2].upcase
@suite = string[-1…-1].downcase
end
def to_i
%w{9 T J Q K A}.index(@value)
end
def to_s
@value + @suite
end
end
class EuchreHand
def initialize(trump, cards)
@trump_string = trump
@trump = trump[0…0].downcase
@cards = cards
same, opposite = [[‘h’,‘d’],[‘c’,‘s’]].partition {|x|
x.include?(@trump)}
same[0].delete(@trump)
@same = same[0][0]
@suite_order = [@trump, opposite[0][0], same, opposite[0][1]]
end
def to_s
([@trump_string] +sorted_cards).join("\n")
end
def sorted_cards
@cards.sort_by {|c| sort_value©}
end
private
#there are 6 sections of the sort: jack1, jack2, trump, opp1, same,
opp2
def sort_value(card)
return [0] if card.value == ‘J’ && card.suite == @trump
return [1] if card.value == ‘J’ && card.suite == @same
return [2+@suite_order.index(card.suite),-card.to_i]
end
end

cards = ARGF.readlines
puts EuchreHand.new(cards.shift, cards.map {|s| Card.new(s)})

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