update_state: avoid division by zero
update_state: avoid division by zero

DeadDork/vimprobable2,hut/vimprobable,hut/vimprobable,fanglingsu/vimprobable,ThomasAdam/vimprobable,desyncr/vimprobable,fanglingsu/vimprobable,ThomasAdam/vimprobable,fanglingsu/vimprobable,ThomasAdam/vimprobable,DeadDork/vimprobable2,desyncr/vimprobable,DeadDork/vimprobable2,DeadDork/vimprobable2,desyncr/vimprobable,desyncr/vimprobable,hut/vimprobable