Code:

1. 
   
2. #nof.rb
3. require 'ruby-processing'
4. 
   
5. require 'rubygems'
6. Gem.clear_paths
7. ENV['GEM_HOME'] = '/usr/local/jruby-1.5.1/lib/ruby/gems/1.8'
8. ENV['GEM_PATH'] = '/usr/local/jruby-1.5.1/lib/ruby/gems/1.8'
9. 
   
10. require 'xxx'
11. 
    
12. class Sketch < Processing::App
13.   load_libraries :opengl, :boids
14.   # We need the OpenGL classes to be included here.
15.   include_package "processing.opengl"
16. 
    
17.   
18.   # Code goes here . . .
19. end