I wanted a fresh start on my dev setup so I deleted my old forge setup and attempted to re-run the exact same zip I used to install it originally and what do you know, it now gives me a failed hash check error. I imagine Lex Manos, in his utter insanity, decided to remove even the choice of allowing us to use the old setup. I have over 2 years of Java coding under my belt but I am new to modding and I used that code as a tutorial and to edit vanilla mechanics. So, my question is how can I edit Vanilla classes now? Before you all start yelling at me, as far as I know, I absolutely have to edit them in order to make my mod (e.g removing gravity through the EntityLivingBase.class). So:
1. How/Can I get the old style environment back?
2. If not, how/can I edit vanilla classes now?
3. If not, how/can I edit vanilla mechanics then (e.g. EntityLivingBase.onUpdate())?