Organizing Your Elixir Code: Modules, Separation, and the Art of Not Making a Mess

Your game already works. You can buy, sell, and travel from IEx. But IEx isn&rsquo;t exactly a polished user experience. Players deserve a real interface — status displays, market listings, menus, and prompts. The key insight: we don&rsquo;t touch the game logic. We build a UI layer on top of the pure functions from ch3. This separation — game logic vs. presentation — is the foundation of…