=begin
Generates an array which contains 2..14 four times with a..d appended to each integer.to_s like so: ["2a","2b","2c","2d"..."14a","14b","14c","14d"]
=end

arr = ((2..14).to_a * 4).sort

meta_deck = arr.map.with_index do |x,y|
    if y % 4 == 0
        x.to_s + "a"
    elsif (y-1) % 4 == 0
        x.to_s + "b"
    elsif (y-2) % 4 == 0
        x.to_s + "c"
    else
        x.to_s + "d"
    end
end



# shuffles the deck for play

deck = meta_deck.shuffle



# your dealt cards from the shuffled deck (for 5-card stud)

my_holdings = [deck.pop, deck.pop, deck.pop, deck.pop, deck.pop]


#method for determining whether 5 card combo is a straight

def is_straight?(cards)

    number_rep = cards.map { |x|
        x.slice(0..-2).to_i
    }.sort

    if number_rep[3] - number_rep[2] == 1 && number_rep[2] - number_rep[1] == 1 && number_rep[1] - number_rep[0] == 1 && number_rep[0] - number_rep[4] == -12 && number_rep[4] == 14
        true
    elsif number_rep[4] - number_rep[3] == 1 && number_rep[3] - number_rep[2] == 1 && number_rep[2] - number_rep[1] == 1 && number_rep[1] - number_rep[0] == 1
        true
    else false
    end

end

is_straight?(["2a", "5c", "14b", "4d", "3a"]) # >> true