I am running minecraft forge 1.8. I am working on a PvP mod that features an arena system. It has an ArrayList<Arena> that stores the arenas. This part is working just fine, but it is not saved with the world. The arena holds a lot of NBT data, so I was thinking that I should you a custom arenas.dat file to store the NBT in. I have looked everywhere for a tutorial on this, but I have not found anything. If someone could explain how or link me to a tutorial, I would be very appreciative.
Thanks in advance.
