Download image tiles from Wplace. Uses wget and imagemagick.

wplace.sh

#!/usr/bin/env bash
set -euo pipefail

# How to use:
# Look at network requests for s0/tiles, then first number is latitude, second is longitude.
[[ $# -ne 5 ]] && { echo "Usage: $0 <dir> <lat_start> <lat_end> <lon_start> <lon_end>"; exit 1; }

dir="$1"
lat_start="$2"
lat_end="$3"
lon_start="$4"
lon_end="$5"

lat_num=$((lat_end - lat_start + 1))
lon_num=$((lon_end - lon_start + 1))

mkdir -p "$dir/out"

for lat in $(seq $lat_start $lat_end); do
	for lon in $(seq $lon_start $lon_end); do

		file="$dir/$lon-$lat.png"
		# Naming files lon-lat aligns bash's * globbing with the order used by imagemagick

		if [ -f "$file" ]; then
			if [[ ! -s "$file" ]]; then
				echo "$file is empty, re-downloading."
			else
				echo "$file already downloaded."
				continue
			fi
		fi
		wget "https://backend.wplace.live/files/s0/tiles/$lat/$lon.png" -O "$file"

		[[ $? -ne 0 ]] && { echo "Rate limit at latitude $lat and longitude $lon"; exit 1; }
	done
done
echo "Creating ${lat_num}x${lon_num} montage..."

files=$(eval echo "$dir/{$lon_start..$lon_end}-{$lat_start..$lat_end}.png")

magick montage -background none -alpha on -geometry +0+0 -tile ${lat_num}x${lon_num} $files "$dir/out/$lat_start-$lat_end-$lon_start-$lon_end.png"

hi, this looks good but how do you get the long and lat?

@TomW1605 look at network requests for "https :// backend.wplace.live/files/s0/tiles/$lat/$lon.png" while dragging the map zoomed in around that area

thanks