Bugfixing + Performance + Tweaking

In this update I would start with a bugfixing, there are 2 bugs that I want to fix now: first is when player is moving and has a lot od upgrades he is moving faster than is own fired bullet so I need to make bullet speed dependent on player movement speed. The next bug is that UI has bad positions on released builds but in editor there are ok. I noticed that I had bad resolution settings in editor so in editor I see the UI in different positions because of this so I changed it.

After this I worked on performance improving, game starting to feel little bit laggy around +- 20 zombies now.

Also did little bit of balancing and there was a problem that zombies sometimes got stuck aroudn the corner I rewrited the in sigh of line checkign so it takes linecast between each corner of zombie and player. Also graph got little less heavy on edges so the zombie bottleneck is probably little bigger now.