rools_example.rb

require 'rools'

class User 
	attr_accessor :bankroll, :ready_to_quit
	
	def initialize
		@bankroll = bankroll = 1000
		@ready_to_quit = ready_to_quit = false
	end
	
	def add_bonus!(n)
		@bankroll = @bankroll + n
		puts "A bonus of $#{n}.00 has been awarded."
	end
end

rules = Rools::RuleSet.new do	
	rule 'Bonus' do
		parameter User, :ready_to_quit
		condition { user.ready_to_quit == true }
		consequence { user.add_bonus!(11) }
	end
end

user = User.new
user.ready_to_quit = true

rules.assert user
puts "Current user's bankroll is #{user.bankroll}."