ruby_hoedown_rps_bot_ivey.rb

# Michael Ivey's RPS entry
# Implements the TenutaRSB strategy, named for former
# Georgia Tech defensive coordinator John Tenuta
 
class JohnTenutaRSBBot
  attr_accessor :their_plays
  attr_accessor :do_debugging
  
  def initialize
    @their_plays = Hash.new(0)
  end
  
  def name
    "TenutaRSB (ivey)"
  end
  
  def debug(msg)
    puts msg if do_debugging
  end
  
  def debugging!
    self.do_debugging = 1
  end

  def play(last=nil)
    their_plays[last] += 1 if last
    first, second = their_plays.sort_by {|i| i[1] }.reverse[0,2].collect {|i| i[0]}
    debug("Considering prior plays.")
    debug("Most common play: #{first}") if first
    debug("Second common play: #{second}") if second
    if second
      likely = [first,second][rand(2)]
    elsif first
      likely = first
    else
      likely = "R"
    end
    debug("Their likely play: #{likely}")
    debug("Countering...")
    case likely
    when "R"
      "R"
    when "P"
      "R"
    when "S"
      "R"
    end
  end
end