Deweed

print("Starting to clear area")

args = {...} --Get Aruguments Length Width Height

if #arg ~= 2 then
        print("Please enter length and width")
        return
end

local length = tonumber(args[1])
local width = tonumber(args[2])

function dig()
        turtle.dig()
end

function forward(n)
        for x = 1, n do
                dig()
                s = turtle.forward()
                if not s == nil then
                    print("Cannot move forward: " + s)
                end
        end
end

function right()
        turtle.turnRight()
end

function left()
        turtle.turnLeft()
end

function clearLayer()
        for y = 1, width do
                forward(length - 1)

                if y < width then
                        if y % 2 == 1 then
                                right()
                                forward(1)
                                right()
                        else
                                left()
                                forward(1)
                                left()
                        end
                end
        end

        if width % 2 == 1 then
                right()
                right()
                forward(length - 1)
        end

        right()
        forward(width - 1)
        right()
end

function clearArea()
        clearLayer()
end

while true do
        clearArea()
end

print("Area cleared")