I have spent some time to learn the box2d wrapper from libgdx.
I made a simple abstract class that I used for every object in the game.
But I realised that the creation-code was a bloat once-run code.
And luckly I remembered my scarse Design Pattern training and figured to make a Factory for the creation process.
Not only did I remove a lot of code that was in the way in the Player class, the code was reused much more efficient in the creation process :)
And thank Linus Torvalds for Git!
To try to refactor the code without knowing a easy way to restore it would be terrifying!
Know it was 3 clicks away.
But now it works, 2 players, simple attack and a simple projectile.
I also solved some rendering bloat.
I just hope that it won't lag when i start to do more.
I've also started to use Idea IntelliJ.
Coming from Eclipse and Netbeans, it's just a really powerful IDE for Java.
It analyzes my code-style and gives superb code completion.
Git integration ofcourse.
I'm also using gradle as a build tool now, perfect for building the project on new computers :D
Code away!