Notes

Locating A Lost Minecraft Base - Edunham

I manage a small, mostly-vanilla Minecraft server. I was playing with friends at an isolated location in the middle of nowhere on another day. I slept on a bed at the base, thinking that would be enough to bring me back later.



After returning to the spawn area, installing a warp plugin (and discovering that /warp is from Essentials), rebooting the server, and then teleporting to another coordinate to install their warps I tried killing my avatar in order to return it to its bed. It got up at spawn instead of returning to its bed. My friends had signed off for the night, so I couldn't simply teleport there. I also hadn't recorded the coordinates of the base. So little time How can I find my base's coordinates?



A quick search in the manuals revealed that there is no console command that could give a server to reveal the last-viewed location or the bed location of a player to an admin. But, the server needs to have some information about the players since it will typically keep track of the location of their beds when they rejoin the game.



There is a directory named world/playerdataon the server, which includes one file for each player the server has ever seen. These are the players UUIDs. You can copy them into this tool to make them usernames. I decided to avoid the tool because the last modified timestamps revealed the files belonged to my friends who were both at our base. I copied a.dat file that seemed to correspond to a player's place of residence or bed. The running file on the file pointed out that it was gzipped but unzipping it and checking the result for anything relevant with strings produced nothing that was understandable.



The Wikipedia reminded me that .dat was encoded with NBT. The recommended NBT Explorer tool appeared to require a bunch of Mono runtime stuff to be compatible with Linux So I downloaded some code that claimed to be a Python NBT wrapper to see if it could provide any useful information.


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