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openspec/archive/2026-05-12-enterprise-gaming-r3f-networking/proposal.md

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+# OpenSpec Change: enterprise-gaming-r3f-networking
+
+- **Change ID**: enterprise-gaming-r3f-networking
+- **Package**: `@suaveplan/r3f-networking`
+- **Category**: gaming/gameplay
+- **Target path**: `gaming/gameplay/r3f-networking`
+- **Status**: SUPERSEDED-BY-GENESIS-WAVE
+- **Date**: 2026-04-24
+
+---
+
+## Summary
+
+Deliver `@suaveplan/r3f-networking` on the genesis branch from scratch at enterprise quality. The package provides multiplayer state synchronization for React Three Fiber: `NetworkedTransform` component applying snapshot interpolation (lerp/slerp per-axis with configurable extrapolation buffer), `NetworkedAnimator` syncing animation state across clients, `ClientPrediction` applying local-authoritative input with server reconciliation, `LagCompensation` utility for rollback-based hit detection, and `useNetworkPing` hook for RTT display. Built on WebSocket transport from `@suaveplan/game-server`. Genesis adds 100% coverage and Storybook stories.
+
+---
+
+## Available workspace deps
+
+`@suaveplan/game-server`, `@suaveplan/game-state-schemas`, `@suaveplan/error`, `@suaveplan/types`, `@suaveplan/timing`, react, `@react-three/fiber`, three.
+
+---
+
+## Public API surface
+
+```ts
+function NetworkProvider(props: NetworkProviderProps): JSX.Element
+// url, tickRate, interpolationDelay, onConnect, onDisconnect
+
+function NetworkedTransform(props: NetworkedTransformProps): JSX.Element
+// networkId, interpolation: 'lerp' | 'hermite', extrapolate
+
+function NetworkedAnimator(props: NetworkedAnimatorProps): JSX.Element
+// networkId, mixer
+
+function ClientPrediction(props: ClientPredictionProps): JSX.Element
+// networkId, applyInput, rollback
+
+function useNetworkPing(): { ping: number; jitter: number }
+function useNetworkProvider(): NetworkContext
+// send(msg), latency, connected, tick
+```
+
+---
+
+## File layout
+
+```text
+gaming/gameplay/r3f-networking/
+  package.json / tsconfig.json / vitest.config.ts
+  src/
+    index.ts / error-codes.ts
+    types/common.ts + md
+    context/network-provider.tsx + md + test
+    interpolation/ (snapshot-buffer.ts + md + test, hermite.ts + md + test)
+    hooks/use-network-ping.ts + md + test
+    components/
+      NetworkedTransform/ (tsx + md + test + stories + index)
+      NetworkedAnimator/ (tsx + md + test + stories + index)
+      ClientPrediction/ (tsx + md + test + stories + index)
+  tests/integration.test.ts
+```