Road Decider: Jev Mode
A racing demo compares Jev and d1 lane choices on the same road.
Added to Jevfast
How it uses Jev
In the Jev vs d1 race mode, Jev uses a Choice question to select the safest of three lanes from the current lane and a compact summary of obstacles ahead. The selected lane moves the AI car; the surrounding game tracks its confidence.
What Jev decides
Choose a lane for the road aheadExample answers · not a recorded Jev response · Source ↗
Question 1 · lane
YOUR APP
INSTRUCTION
Pick the safest lane; row 1 is most urgent and prefer the current lane when equally safe.
STATE
Source-defined example state: current lane plus each lane clear or the first obstacle row within look-ahead. The README illustrates center current lane, left obstacle at row 2, center clear, right obstacle row 4.
JEV · CHOICE
- left
- center
- right
App workflow
- Summarize the road
Read current lane and first obstacle row for each lane in the look-ahead window.
- Request a lane
Send that state and the fixed left, center, right Choice question to the selected racer endpoint.
- Validate and move
Validate the returned lane, move the AI car, and update the confidence display.
Why it is interesting
The example demonstrates that a structured decision can run inside a fast game loop: code compresses the road into per-lane obstacle distances and Jev picks from a fixed set of lanes.