Vibe codingMediumvc-g013

Subject Ai prompt specLevel Mid–Senior~18 minCommon in Algorithms & data structures interviewsIndustries Computer games, Software development

Question

You're building a 2D spatial-hash collision system in C++ for a game's update loop and want an AI agent to write it. Write the spec so the result is correct AND fast enough for a 60fps loop. What performance and correctness constraints must you pin down, and what does a generic 'write a collision detection function' prompt get wrong?

What a strong answer looks like

Treat the AI’s output as a draft to verify, not an answer to trust. Name the specific flaw and the input that triggers it, say how you’d catch it — tests, edge cases, reading critically — and how you’d re-prompt or decompose to get it right.

Learn the concepts

Describe your solution

Vibe coding: describe the solution in plain language (or narrate it) and the coach grades your approach. Generating runnable code from your description is coming next.

Run or narrate your approach, then ask the coach.