farm.lua

local InputArgs = {...}

if #InputArgs ~= 1 then
    print("Usage: farm <size>")
    return
end

local function checkToPlace()
    for i = 1, 16 do
       local slotName = turtle.getItemDetail(i).name
       if slotName:match("seed") then
           return i
       end
    end
    return false
end

for i = 1, InputArgs[1] do
    for j = 1, InputArgs[1] do
        turtle.dig()
        local slotWSeeds = checkToPlace()
        if slotWSeeds then

        end
        turtle.forward()
    end
    turtle.left()
    turtle.forward()
    turtle.left()
end