weed

--- Weed. Get rid of flowers for 5 of 7

local tArgs = { ... }
if #tArgs ~= 2 then
    print( "Usage: weed <length> <width>" )
    return
end

local length  = tonumber( tArgs[1] )
local width  = tonumber( tArgs[2] )
local leftRight = 0
print ( "Farming"..length.."by "..width.."." )

--- move in a zig zag fashion around the weeds using nested loops

for w=1, width do
    for l=1, length do
        turtle.digDown()
        turtle.forward()
    end

    if leftRight == 0 then
        turtle.turnRight()
    else
        turtle.turnLeft()
    end

    turtle.forward()

    if(leftRight) == 0 then
        turtle.turnRight()
    else
        turtle.turnLeft()
    end

    if leftRight == 0 then
        leftRight = 1
    else
        leftRight = 0
    end
end

--- Get back to where you once belonged.
--- Need to code else for even numbered width later

    if width%2 ~= 0 then
        for n=1, length do
            turtle.forward()
        end

        turtle.turnRight()

        for n=1, width do
            turtle.forward()
        end
        turtle.turnRight()
    end