gistfile1.rb

# ==================== Main Behavior ================================
RUBY_EXPERIENCE_POINT = 50

metaprogramming_classes.each_with_index do |klass, index|
  klass_day = index + 1
  author.publish_to_repo(klass.demo_code_snippets, klass_day)
  
  students.each do |student|
    code_snippets = student.refer_to_repo(klass, klass_day)
    student.run_and_understand(code_snippets, which_day)                 # gain some experience
    student.gain(RUBY_EXPERIENCE_POINT, which_day) if student.know_ruby? # Assuming Student gain 50 if he/she knows Ruby
    student.revise(klass_day) if student.interested?
  end
end