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openspec/changes/enterprise-gaming-r3f-world/proposal.md

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+# OpenSpec Change: enterprise-gaming-r3f-world
+
+- **Change ID**: enterprise-gaming-r3f-world
+- **Package**: `@suaveplan/r3f-world`
+- **Category**: gaming/scene
+- **Target path**: `gaming/scene/r3f-world`
+- **Status**: PROPOSED
+- **Date**: 2026-04-24
+- **Reference spec**: `/mnt/s/web/suaveplan/enterprise/r3f-world.md`
+
+---
+
+## Summary
+
+Deliver `@suaveplan/r3f-world` on the genesis branch from scratch at enterprise quality. The package provides world management and scene composition for React Three Fiber. A `WorldManager` orchestrates scene layers (terrain, vegetation, water, buildings, NPCs, effects) in dependency order; a `SceneGraph` maintains a flat registry of mounted scene nodes with bounding volumes; a `WorldProvider` React context exposes the manager to all child R3F components. `useWorld()` accesses the context for scene queries and entity registration. Genesis adds structured errors, OTel scene-node gauge, and 100% coverage.
+
+---
+
+## Available workspace deps
+
+`@suaveplan/error`, `@suaveplan/types`, `@suaveplan/events`, `@suaveplan/spatial-hash`, `@suaveplan/ecs`, react, `@react-three/fiber`, `@react-three/drei`, three.
+
+---
+
+## Public API surface
+
+```ts
+function WorldProvider(props: WorldProviderProps): JSX.Element
+function useWorld(): WorldContext
+
+interface WorldContext {
+  register(node: SceneNode): () => void
+  query(bounds: AABB3): SceneNode[]
+  readonly nodeCount: number
+}
+
+// Components
+function World(props: WorldProps): JSX.Element   // root scene orchestrator
+```
+
+---
+
+## File layout
+
+```text
+gaming/scene/r3f-world/
+  package.json / tsconfig.json / vitest.config.ts
+  src/
+    index.ts / error-codes.ts / constants/index.ts
+    types/common.ts + md
+    core/
+      world-manager/ (ts + md + types + test + index)
+      scene-graph/ (ts + md + types + test + index)
+    context/
+      world-provider.tsx + md + test
+      use-world.ts + md + test
+    components/
+      World/ (tsx + md + test + stories + index)
+  tests/integration.test.ts
+```

openspec/changes/enterprise-gaming-r3f-world/tasks.md

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+# Tasks: enterprise-gaming-r3f-world
+
+## 0. Pre-flight (non-negotiable)
+
+- [ ] 0.1 Confirm clean working tree (`git status` reports nothing) and no in-flight worktrees with uncommitted work (`git worktree list` then `git status` in each)
+- [ ] 0.2 If any worktrees exist under `.claude/worktrees/`, account for each one: still-active agent, work-pending-merge, or stale-and-prune. Stale worktrees MUST be removed (`git worktree remove`) before opening a new one — code that has been lost twice on main is the failure mode this guards against.
+- [ ] 0.3 Confirm the package set in `MANIFEST.md` matches `find packages -maxdepth 3 -name package.json` count. Drift here means a prior change archived without regenerating the manifest.
+
+## Phase 1 — Scaffold
+
+- [ ] Create `gaming/scene/r3f-world/` (`@suaveplan/r3f-world`, `0.1.0`, `sideEffects: false`)
+
+## Phase 2 — Types + error codes
+
+- [ ] `src/types/common.ts` + `common.md`
+
+## Phase 3 — Scene graph
+
+- [ ] Flat registry with spatial-hash AABB queries
+- [ ] Tests + docs
+
+## Phase 4 — World manager
+
+- [ ] Layer ordering, mount/unmount lifecycle, OTel node gauge
+- [ ] Tests + docs
+
+## Phase 5 — Context + hook
+
+- [ ] `WorldProvider`, `useWorld`
+- [ ] Tests + docs
+
+## Phase 6 — `World` component + story
+
+- [ ] Tests + Storybook
+
+## Phase 7 — Pre-publish gate
+
+- [ ] `bunx turbo lint typecheck test --filter=@suaveplan/r3f-world` green
+- [ ] 100% coverage
+- [ ] Publish: `bun scripts/publish.ts --package @suaveplan/r3f-world`