[1.8] Saving and accessing rectangular regions?

[Guest]

I need to save information about the position and dimensions of rectangular regions and then later access the saved data so that I can, for example, check if a certain block from a BreakEvent lies within one of the rectangular regions.

 

What is the best way to accomplish this? Is there some way to use NBT or edit the world save? Or will I have to come up with some other solution like storing the region data in a json/yaml file and reading that file when necessary?

[Guest]

WorldSavedData. See an example here.

This is what I was looking for. Thanks.