1.3 beta

big update, i would say this marks general gameplay compatiblity
removed barrier blocks, now everything uses the same voxel collision system (torches, redstone, water and sand work on it)
fixed mob pathfinding on slopes
fixed projectiles falling through the ground, they now properly collide with the halfsword fences and the ground/foor
added proper support for abyss. you shouldnt fall through the map anymore but if you do you will get teleported back
added water, lava and powder snow effects on fighters (slowing, currents, choking, burning, freezing)
added spear charge support (m2 works properly based on velocity same as regular mc)
fighters can now break blocks (/hs mining on to turn it on, /hs mining off to turn it off, /hs mining number to adjust how much damage they do to blocks per hit)

KNOWN BUG: switching back to your fighter with F9 can dislocate limbs, fix being worked on.