if you ever will make an new AI for the mobs it doesn't need to be a good AI. it can also be the old AI from before 1.2 (i liked that one more
) i don't know of it is very difficult to make a new AI (it probably is) but if they walk normal (so no teleports anymore) then it is fine 
) i don't know of it is very difficult to make a new AI (it probably is) but if they walk normal (so no teleports anymore) then it is fine