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/godot-adapt-single-to-multiplayer

@9d6e91e
by Divergent AIthedivergentai/gd-agentic-skills783 stars
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Expert patterns for adding multiplayer to single-player games including client-server architecture, authoritative server design, MultiplayerSynchronizer, lag compensation (client prediction, server reconciliation), input buffering, and anti-cheat measures. Use when retrofitting multiplayer, porting to online play, or designing networked gameplay. Trigger keywords: MultiplayerPeer, ENetMultiplayerPeer, SceneMultiplayer, MultiplayerSynchronizer, rpc, rpc_id, multiplayer_authority, client_prediction, server_reconciliation, lag_compensation, rollback.

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Use this Skill: https://skilld.dev/gh/thedivergentai/gd-agentic-skills/godot-adapt-single-to-multiplayer

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referenceslatency-testing.md

≈453 tokens on demand. Your agent reads this file only when SKILL.md points to it.

Latency Testing (Local Multiplayer)

Use this reference when stressing a single-player→multiplayer migration. Keep SKILL.md as the architecture router; load this file when wiring net_latency_simulator.gd.

When to load

  • After host/join and authority paths work on localhost
  • Before claiming reconciliation / interpolation are "done"
  • Any time you change RPC reliability or sync intervals

Golden path

  1. MANDATORY load scripts/net_latency_simulator.gd and insert it on the multiplayer peer path (editor/debug builds only).
  2. Start two clients (or host + client) against the same scene.
  3. Apply a profile: 150 ms RTT, 1–3% packet loss, optional jitter ±30 ms.
  4. Watch scripts/net_debug_overlay_monitor.gd for RTT / loss / jitter while playing the critical loop (move, shoot, interact).
  5. Confirm server authority still rejects forged RPCs (net_auth_server_validator.gd / rpc_bridge.gd).

Pass / fail gates

Gate Pass condition
Feel Local input still predicts; remotes interpolate without rubber-band spikes
Authority Illegal speed/position RPCs rejected on server
Late join Mid-session join receives snapshot (net_lobby_late_join_sync.gd)
Bandwidth Interest / delta compression still under budget with loss enabled

Do NOT

  • Ship the latency simulator in release exports
  • Treat 0 ms localhost success as multiplayer validation
  • Raise sync rates to "hide" lag without measuring bandwidth

Related scripts

  • net_latency_simulator.gd — inject delay/loss
  • net_debug_overlay_monitor.gd — on-screen RTT/loss
  • net_prediction_reconciliation.gd / net_snapshot_interpolation.gd — fix feel after simulator fails
  • multiplayer_sync.gd / rpc_bridge.gd — authority + transport bridges

Source: SKILL.md on GitHub

Third-party checks

2 warnings16d4 checks · Risk SAFE
  • Gen Agent Trust Hub16d

    The skill provides expert patterns for Godot multiplayer networking, including security measures like server-side validation and RPC rate limiting. It contains a standard attack surface related to processing data from remote network peers.

  • Socket16d

    No alerts

  • Snyk16d

    Risk: MEDIUM · 1 issue

  • Runlayer7mo

    3/3 files flagged

Provenance

Signed by skilld at 9d6e91e. This ties the file your Agent reads to that commit on GitHub. It does not review the instructions.

Last checked against GitHub 3 weeks ago.

Activeupdated 2 months ago

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