I seem to have omitted the particular ruby file which directly
generated the error:

thufir@arrakis ~/rubyCode/creatures5 $
thufir@arrakis ~/rubyCode/creatures5 $
thufir@arrakis ~/rubyCode/creatures5 $ ruby creatures.rb
creatures.rb:14: undefined local variable or method `creaturs' for
main:Object (NameError)
thufir@arrakis ~/rubyCode/creatures5 $
thufir@arrakis ~/rubyCode/creatures5 $ cat creatures.rb
require 'ArrayOfCreatures'
require 'MakeCreature'
require 'Location'

include MakeCreature

NumOfCreatures=2
creatures = ArrayOfCreatures.instance

NumOfCreatures.times do |i|
        creatures[i]=Dragon.new
end

creaturs[0].location.x = 3
thufir@arrakis ~/rubyCode/creatures5 $
thufir@arrakis ~/rubyCode/creatures5 $ date
Mon Nov 12 22:28:42 PST 2007
thufir@arrakis ~/rubyCode/creatures5 $
thufir@arrakis ~/rubyCode/creatures5 $



-Thufir