Clone it, Luke

What this design-patterns C++ interview question tests

This is a hard design-patterns question that asks you to recognize and name a structural or creational pattern in working code. It tests whether you can identify which of the Gang of Four patterns a real implementation follows — a skill that matters for code review, refactoring, and communicating with teammates in large codebases.

The question presents code from a game engine context (a 3D maze game) and requires you to spot the pattern's intent, structure, and key participants. Strong answers name the pattern precisely, explain why the co-worker chose it for this use case, and can point to the code elements that make it recognizable.

• Structural vs. creational pattern families
• Intent and participants of Gang of Four patterns
• Trade-offs between patterns that solve similar problems
• When to apply patterns in game engines and graphics code