class Baseball
  def initialize(count=3)
    @count = count
    setup
  end
 
  def setup
    random = (1..9).sort_by { rand }
    @computer = random[0...@count]
  end
 
  def get_score(u)
    s = b = 0
 
    (0...@count).each do |i|
      (0...@count).each do |j|
        (i == j) ? s += 1 : b += 1 if @computer[i] == u[j]
      end
    end
 
    return s, b
  end
 
  def play
    count = 0
    begin
      print "user #{@count} numbers: "
      user = gets.delete(" ").split("").map(&:to_i)
 
      if user[0] == 0
        print "Computer: "
        @computer.each { |x| print x, " " }
        puts
        break
      end
 
      s, b = get_score(user[0...@count])
      count += 1
 
      puts "(#{count}) Strike: #{s}, Ball: #{b}, Out: #{@count-s-b}"
    end until s == 3
 
    puts "You played #{count} times."
  end
end
 
b = Baseball.new
b.play
 
b = Baseball.new(5)
b.play

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