class Player
  def choose
    [:Rock, :Paper, :Scissors][rand(3)]
  end
end

class Game
  def initialize(player1 = Player.new, player2 = Player.new)
    @players = [player1, player2]
  end

  def run(num_rounds)
    @results = []
    num_rounds.times do
      choices = @players.map do |p| p.choose end
      if choices[0] == choices[1]
        @results << 0
      else
        case choices
        when [:Paper, :Rock], [:Rock, :Scissors], [:Scissors, :Paper]
          @results << 1
        else
          @results << 2
        end
      end
    end
  end

  def results
    wins, losses, draws = [], [], []
    @players.each_index do |i|
      wins[i] = @results.grep(1 + i).size
      draws[i] = @results.grep(0).size
      losses[i] = @results.grep(2 - i).size
      puts "Player #{i + 1}: won #{wins[i]}, lost #{losses[i]}, draw #{draws[i]}"
    end
    winner = wins[0] > wins[1] ? 1 : 2
    puts "Player #{winner} is the overall winner"
  end
end

game = Game.new
game.run(100)
game.results