Inventory!

Well, my semester is almost over. I've turned in all of my projects and all that's left is exams. As far as this project goes, I've been fussing with inventory commands and such. Agents can now properly move items from one spot on their person to another, which properly costs TUs and such.They can pick things up off of the ground, drop them to the ground. The only thing missing is the ability to load/unload ammo from a weapon. It won't take me long to include this, just saying where I'm at.
The inventory screen functions are kind of neat, because depending on which command you're using, and which item you've selected, it actually shows you where you can and can't put the item, related to how much space is free and how many TUs you have. You can still try to put it in invalid spots, but it will just say that it can't. I'm doing this, partly, because it's not graphical, so you can't see at-a-glance where things will fit. It's also very modular, with the names of the compartments and ordering of the compartments being defined by the species.
This means that an alien soldier could have the same amount of personal spots to carry things as an X-Com soldier, while an alien engineer might only have its hands and pockets, or an 8-armed alien could theoretically weild 8 weapons. I think the only bit I need to change for loading/unloading, is to have something that defines which 'compartments' are effectively hands. Because it doesn't make sense to unload a weapon that's in a backpack, when your hands are full.
As I was doing this stuff, I realized that I've been lax about having functions declare what is happening, such as, "Unable to move: Not enough TUs" So I'll try to do as much of that as I can. I also had an idea, such that opening and closing doors would open every '+' that is adjacent to the one you opened, which would allow for those double-doors and even wider ones, like what you'd find on a garage/carport. (perhaps doors wider than 2 '+' would take longer to open/cost more TU)
I've started poking around with recursive ways to generate levels. One I'm working with right now should break it down into smaller and smaller rectangles of various sizes, which will be expanded to allow for non-rectangular shapes. I've also got a few articles about recursive level generation to read.

Quick question to anyone that deals with Java. Is there any sort of built-in way to sort a linked list? I know that you can sort a 'plain' List object, but I can't seem to figure out how to do it with a LL. I might just do a manual sort that runs every time something is added to the LL, but I was hoping for there to already be a framework for it. Oh well.