Refactoring Game Menus and Module Structures in Carpinchos-Invasores

The Problem

As the Carpinchos-Invasores project grew, our main menu implementation became increasingly difficult to manage. The codebase suffered from tightly coupled logic, where navigation states were mixed with game initialization, making it hard to track where specific game modules were being invoked.

The Approach

We decided to decouple the menu system from the underlying engine modules. Think of this like organizing a messy kitchen: instead of keeping every utensil in one drawer, we created dedicated compartments for each tool.

Phase 1: Modularizing the Backend

We moved away from monolithic script files. By grouping functionality into discrete Python modules, we achieved a clearer separation of concerns. This allows us to load specific game assets only when needed.

# Example of our new modular pattern
class MenuManager:
    def __init__(self):
        self.active_module = None

    def switch_to(self, module_name):
        self.active_module = self._load_module(module_name)
        self.active_module.initialize()

# Usage
menu = MenuManager()
menu.switch_to("level_one")

Phase 2: Streamlining the Navigation

With the backend organized, we simplified the menu interface logic. We implemented a state-based approach to replace the previous messy conditional checks. This ensures that the user interface always reflects the current state of the application without manual state synchronization.

Final Numbers

Key Insight

By prioritizing modularity, we transformed a rigid menu system into a flexible framework. The biggest takeaway here is to always keep your entry points (menus) thin and your business logic (modules) separated. If you find your main file growing beyond a few hundred lines, it is time to break it down into smaller, domain-specific modules.

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