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Vibe codingHardvc-g357
Subject Ai code reviewLevel Senior–Staff~19 minCommon in Algorithms & data structures interviewsIndustries Computer games, Software development

Question

An AI agent wrote the client-side network sync for a co-op game. Remote players 'rubber-band' and snap between positions on anything but a perfect LAN. Review the client update and explain what naive netcode is missing.

javascript
socket.on('stateUpdate', (state) => {  for (const p of state.players) {    const ghost = remotePlayers[p.id];    // apply the server position immediately    ghost.position.set(p.x, p.y, p.z);    ghost.rotation.set(p.rx, p.ry, p.rz);  }}); function render() {  drawPlayers(remotePlayers);   // 60fps, but updates arrive ~15/s}
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.