Code examples for "Welcome to my world!" - http://localhost:3000/mist/posts/welcome-to-my-world

dice.rb

class Dice
  def initialize(count, sides)
    @count, @sides = count, sides
  end
    
  def roll
    @count.times.inject(0) { |a,i| a + rand(sides) }
  end
end
    
class Fixnum
  [1, 2, 4, 6, 8, 10, 12, 20].each do |sides|
    define_method :"d#{sides}" do
      Dice.new(self, sides).roll
    end
  end
end

test.rb

2.d4  #=> rand(4) + rand(4)
3.d6  #=> rand(6) + rand(6) + rand(6)