rowExcavate

local tArgs = { ... }
local depth = 0

if #tArgs ~= 1 then
    print("Usage: rowExcavate <length>")
    return
end

length = tonumber(tArgs[1])
os.loadAPI("try")

for i = 1,length do
    while try.down() do
        depth = depth + 1
    end
    while depth ~= 0 do
        try.up()
        depth = depth - 1
    end
    if i ~= length then
        if not try.forward() then
            print("Cannot move forward! Exiting script!")
            return
        end
    end
end