A useful plugin for utility/moderation purposes that allows you to create a map corresponding to any image URL. Server needs internet on each startup for this to work, and needs to be able to access the image URL every time it starts.
The easy way: hold an empty map in your hand and run /mapimage with no arguments. A popup dialog (Minecraft 1.21.6+) opens where you paste the image URL and click "Create Map". On older clients the URL can be typed in chat instead (you have 30 seconds). Creating a map costs XP levels and consumes empty maps — one empty map per tile, so a 2x2 image needs 4 empty maps (max 64 maps, e.g. 8x8, configurable via max-maps). Both are only charged once the image has loaded successfully, so a bad URL costs you nothing.
You can also use arguments directly: /mapimage <image-url-or-filename> [rowsxcols]. Include https:// in URLs, or it will not work. rowsxcols customizes the size of the image (e.g. 2x4 = 2 maps high, 4 maps wide), useful for bigger images. The maps start from top left and go left to right on each row until bottom right.
xp-cost-levels: XP levels it costs to create an image map (default5, set0for free).require-empty-map: require an empty map in the player's hand (defaulttrue).max-maps: maximum number of maps (rows x cols) a single image may use (default64).chat-input-timeout-seconds: how long the chat URL fallback stays active after running/mapimagewith no arguments (default30).
mapimage.use is default to op, and corresponds to the /mapimage command. Using luckperms or another permissions updater you can change this, or just change the default in the source code and build.
Paper 1.21.6+ (the dialog popup needs Paper 1.21.7+; without it the chat fallback is used automatically).
Add me on Discord, 'tommustbe12', and tell me what you're confused on. Thanks!