# BonePose

> Talos 0.7 · Since 0.7

Where a bone is, as {@link Animator.bone} reports it.

## Signature

```ts
export interface BonePose {
  /** World position, metres. */
  position: Vec3
  /** World rotation, as a quaternion [x, y, z, w]. */
  rotation: [number, number, number, number]
}
```

Import: `import type { BonePose } from "@argus/api"`

## Members

| Member | Signature | Description |
|---|---|---|
| `position` | `position: Vec3` | World position, metres. |
| `rotation` | `rotation: [number, number, number, number]` | World rotation, as a quaternion [x, y, z, w]. |

## Example

The tested fixture `fixtures/host/door.ts`.

```ts
import type { Behavior } from "@argus/api"
// docs/API.md, "Joints": a door on a hinge that swings open while the player is near and closes
// behind them. Typechecked by packages/api's tests.
export default {
  update(ctx) {
    const player = ctx.world.find("player")
    const near = player !== null && ctx.entity.distanceTo(player) < 2
    ctx.joint?.setMotor(near ? Math.PI / 2 : 0, { mode: "position", maxForce: 200 })
  },
} satisfies Behavior
```