I am trying to teach myself Ruby.  So i have decided to make an RPG
Sword and sorcery type.  my question is can classes contain classes.

for example

Module World
     class Map
            class Make_land
                 def landmass
                   # generate land mass, mountain ranges, etc.
                  end
              end
              class Make_Seas
                    #generate ocean and lakes
               end
        #etc ad infinitum
  end