Barriers are building blocks, and I can make them whatever you like they will still work the same exact way because of Notrium's collision detection. You cannot do oblong shaped objects, well you can.. but the collision is still going to be a perfect radius. I don't think I'll change them, they're just there if you want to use them. I'll see if I can't make them a bit more useful though, probably through the use of quick key so you can quickly setup a perimeter when you need it. The main reason the barriers don't have a true usefulness is that you never really get swarmed THAT badly, but trust me when I say I will swarm you in the new version if I can and you WILL need every bit of protection you can get, or you could just run
Expect the level of difficulty to jack up a bit in the upcoming version, because for one enemies WILL have immunity to certain weapons so you'll have to be smart about your weapons and actually learn what works on what.
You'll find one of the most simple, yet useful additions is going to be the Quick Key. Currently it is restricted to actual letter keys, but that may change by the time the final version of 1.3 is released, which is what I'm hoping since only using letter keys does limit just how many quick keys you can use, especially when A,W,S,D and P are already used right off the bat, leaving you with only 21 Quick Keys.