anchor.diff:      \ Completed homes
       5 0 do
           done i + c@ if
  -            homes i + c@ 40 63 sprite
  +            i homes 40 63 sprite
           then
       loop
   
  
positive.code:             \ GD.inputs.ptag cr .
              frogy @ 128 > if \ road section
                  touching if
                      die cr ." splat"
                  then
              else
                  frogy @ 40 > if \ river section
  
negative.code:     then
      r> drop
  
      dying @ if
          1 dying +!
          dying @ 64 = if
              -1 lives +!
              lives @ 0= time @ 0= or if
                  game_over
  