Beta v2.0 build 18

This update addresses the fish, of lack of them being caught. I've fixed some bugs in the fish AI that was stopping them taking your bait. They're now much easier to catch, too easy in fact. This is so i can gather your feedback on the playing, landing and releasing of the fish.

The image FX are also a work in progress, some like it, some don't so I'll include options to turn it on or off in the options menu. Turning it off should also improve performance a little for those playing on laptops.