Question

Can some one help me understand how ‘endertromb’ is being used or where I can get it for this guide?
http://poignant.guide/book/chapter-5.html

Why has 2 examples where he is trying to teach a concept about instance variables but he seems to be requesting a file endertromb.rb and using it. Am I missing something? what/how can I get this file so that I don’t get errors. I’ve tried to Google but got nothing at all.
Heres example code of how he used it:

require 'endertromb'
 class WishMaker
   def initialize
     @energy = rand( 6 )
   end
   def grant( wish )
     if wish.length > 10 or wish.include? ' '
       raise ArgumentError, "Bad wish." 
     end
     if @energy.zero?
       raise Exception, "No energy left." 
     end
     @energy -= 1
     Endertromb::make( wish )
   end
 end

Answer 1

Endertromb is just a class defined in another file, and thats all you need to know. As stated by _why himself in this guide:

Both the wish maker and the mind
reader refer to a class named
Endertromb. This class is stored in a
file endertromb.rb, which is loaded
with the code: require ‘endertromb’.

and

The Endertromb class which contained
the mysteries of this planet’s powers.