SheepFarm

t = turtle
while true do
    for i = 1,4 do
        t.turnRight()
        for i = 1,8 do
            while not t.forward() do t.attack() t.attackUp() end
            t.attack()
            t.attackUp()
            t.suck()
        end
    end

    for i = 16,1,-1 do
        t.select(i)
        t.drop()
    end

    while  t.getFuelLevel() < 100 and (t.suckUp() or (t.getFuelLevel() < 600)) do
        t.refuel()
        t.dropUp()
    end
end