# billboard

Public pixel-canvas / message billboard. Runs at https://billboard.pinkro.se

## API

Palette colors are indices 0–15 (standard ANSI colors). Origin is top-left.

```sh
# place one pixel
curl -X POST localhost:8080/api/pixel -d '{"x":10,"y":5,"color":3}'

# place many pixels atomically (1-2048 per request, fails as a whole if any is invalid)
curl -X POST localhost:8080/api/pixels -d '{"pixels":[{"x":1,"y":1,"color":3},{"x":2,"y":1,"color":4}]}'

# stamp a full image (max 32x32) at offset x,y; edges clip
curl -X POST localhost:8080/api/image -d '{"x":20,"y":8,"pixels":[[0,4,4,0],[4,4,4,4],[4,0,0,4],[0,4,4,0]]}'

# post a message (max 140 chars, last 50 kept)
curl -X POST localhost:8080/api/message -d '{"text":"hello billboard"}'

# full state snapshot
curl localhost:8080/api/state

# live event stream
curl -N localhost:8080/api/events
```

![amogus](https://stuff.pinkro.se/amogi.png)