The final boss fight

Identifying design patterns in game-engine code

This easy question tests your ability to recognize a structural or behavioural design pattern from a concrete C++ code snippet. It's the kind of pattern-recognition task that comes up in game-engine and systems-design interviews, especially at studios and firms that care about maintainable, extensible architecture.

The question asks you to read working code and name the pattern it exemplifies—a skill that separates developers who can talk about patterns from those who can spot them in the wild. You'll need to identify the key structural relationships: which classes collaborate, what role each plays, and what problem the arrangement solves.

• Structural vs. behavioural patterns
• Class hierarchies and delegation
• The Gang of Four pattern catalogue
• Trade-offs between flexibility and simplicity