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2026-05-27 23:29:53 +01:00

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# 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`
---
## 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.
---
## Available workspace deps
`@suaveplan/error`, `@suaveplan/fsm`, `@suaveplan/r3f-character`, `@suaveplan/r3f-vehicle`, `@suaveplan/ik-solver`, react, `@react-three/fiber`, `@react-three/drei`, three.
---
## Public API surface
```ts
function CharacterVehicleSystem(props: CharacterVehicleSystemProps): JSX.Element
function useCharacterVehicle(): CharacterVehicleState
// state: 'on-foot' | 'entering' | 'driving' | 'exiting'
// nearestVehicle, activeVehicle
// enterVehicle(), exitVehicle()
```
---
## 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
```