one fable-low hijack cell
pair Vector / direction
envelope en_arrow
ordering BA
effort low
English with arrow '→' — '{X} → {Y}'
verdictpicked Vector (first-offered)
· classifierA
· tiernone
response (200 chars)
Here's a typical `direction → Vector` conversion — mapping a direction (enum/angle) to a unit vector:
**Elm**
```elm
type Direction = Up | Down | Left | Right
toVector : Direction -> ( Float, Float
neighbors