# OpenSpec Change: enterprise-gaming-r3f-character-vehicle

- **Change ID**: enterprise-gaming-r3f-character-vehicle
- **Package**: `@suaveplan/r3f-character-vehicle`
- **Category**: gaming/character
- **Target path**: `gaming/character/r3f-character-vehicle`
- **Status**: PROPOSED
- **Date**: 2026-04-24
- **Reference spec**: `/mnt/s/web/suaveplan/enterprise/r3f-character-vehicle.md`

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## Summary

Deliver `@suaveplan/r3f-character-vehicle` on the genesis branch from scratch at enterprise quality. The package provides character-vehicle integration for React Three Fiber: enter/exit interactions (proximity detection → mount/dismount animation → authority transfer), smooth camera transition between character and vehicle modes, and driver pose IK (hands to steering wheel). A `CharacterVehicleSystem` FSM manages the `on-foot | entering | driving | exiting` state machine; `useCharacterVehicle()` exposes current state. Genesis adds structured errors, OTel state-change counter, and 100% coverage.

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## Available workspace deps

`@suaveplan/error`, `@suaveplan/fsm`, `@suaveplan/r3f-character`, `@suaveplan/r3f-vehicle`, `@suaveplan/ik-solver`, react, `@react-three/fiber`, `@react-three/drei`, three.

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## Public API surface

```ts
function CharacterVehicleSystem(props: CharacterVehicleSystemProps): JSX.Element

function useCharacterVehicle(): CharacterVehicleState
// state: 'on-foot' | 'entering' | 'driving' | 'exiting'
// nearestVehicle, activeVehicle
// enterVehicle(), exitVehicle()
```

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## File layout

```text
gaming/character/r3f-character-vehicle/
  package.json / tsconfig.json / vitest.config.ts
  src/
    index.ts / error-codes.ts
    types/common.ts + md
    core/fsm/ (ts + md + types + test + index)
    context/character-vehicle-provider.tsx + md + test
    hooks/use-character-vehicle.ts + md + test
    components/
      CharacterVehicleSystem/ (tsx + md + test + stories + index)
  tests/integration.test.ts
```