guybrush / graffitiwallpainter

graffitiwallpainter

graffitiwallpainter will periodically fetch the current graffitiwall from beaconcha.in and check which pixels need to be painted to draw the given image on the graffitiwall and updates a graffiti-file.

beaconcha.in/graffitiwall -> graffitiwallpainter -> graffiti.yml -> validator
                             ^
                             |
/path/to/image.png ----------+

usage

# install the binary
go install github.com/guybrush/graffitiwallpainter@latest
# offset x:10 y:10 only fetch once
graffitiwallpainter -image /path/to/image.png -graffiti /path/to/graffiti-file.yml -x 10 -y 10 -once
# draw on pyrmont-graffitiwall
graffitiwallpainter -url https://pyrmont.beaconcha.in/api/v1/graffitiwall -image /path/to/image.png -graffiti /path/to/graffiti-file.yml -x 10 -y 10 -once

# run with docker (it will update the file every minute)
docker run -v $PWD:/v guybrush/graffitiwallpainter -image /v/image.png -graffiti /v/graffiti.yml -x 100 -y 100

graffitiwallpainter -h

Usage of graffitiwallpainter:
  -graffiti string
        path to graffiti-file (default "graffiti.txt")
  -image string
        path to image (default "image.png")
  -interval duration
        interval in which the graffiti-file will be updated (default 6m24s)
  -max int
        if set to >0, only N pixels will be writen to file
  -once
        if set, write all pixels to file and exit
  -url string
        url to graffitiwall page of explorer (default "https://beaconcha.in/api/v1/graffitiwall")
  -x int
        offset x
  -y int
        offset y