Okay, running 1.13.2 , hosted on my own machine, it's the latest spigot MC and a handful of plugins, but that's not important. my problem is a vanilla problem
it's a survival world, with economy, and land claims, quest adventures, and all that stuff. theres about 90 players registered, 30 or so active, 6 months of existence, about 3 GB of mapdata. so not huge, but definitely a lot of stuff we dont want to abandon, and we've spent a long week upgrading it from 1.12.2 to 1.13.2 overall pretty successful.
then i did a dumb thing, combined with a really stupid thing.
the dumb thing was trying to fix some /execute and /kill command strings in a worldguarded adventure map. i'd been having problems with the new command structures working right with the plugins, and what the heck i went and did a /kill @e[type=!player,distance=..99] from the server console which then killed about 700 entities, not at all what i wanted to happen. dumb, right?
the stupid thing i did was not backup my world for a week. i dont have a good reason. stupid. stupid. stupid.
here's my problem: many of these entities are item frames for multiple player shops, and a huge recently-constructed world map, and of course everyones pets and farms and stuff. that's gonna hugely people off to replace. but if i used the old back up from a week ago, I've undone everything everyones been doing for the past week, which is quite a lot of work.
HERE IS MY IDEA. I dont know if it will work.
Can i use the "region" .mca data from the "world" folder, from the old backup, to retrieve those deleted entities, and put them into the current world/region data? I can figure out how to edit the .mca files, i just dont know if this is even possible so i want to get your opinions or suggestions before i start.
thanks for considering