Minecraft CC Auto-Farm Def-16x16

--Config
local dwidth = 16
local ddepth = 16
local dtimer = 24 -- In minutes (Crops should grow in like 24 min)
local seeds = {"seed","cotton"} -- Insert seed names here (For example Wheat Seed has 'seed' in it, so you don't need to add it)

--Setting variables to defaults
local width = dwidth
local depth = ddepth
local dtimer = dtimer

--Argument Handling
local args = {...}
print("Auto-Farm:")
if args[1] and tonumber(args[1]) ~= nil then
    width = tonumber(args[1])
    print("X:",args[2])
else
    print("X:",dwidth,"(Default)")
end
if args[2] and tonumber(args[2]) ~= nil then
    depth = tonumber(args[2])
    print("Z:",args[2])
else
    print("Z:",ddepth,"(Default)")
end
if args[3] and tonumber(args[3]) ~= nil then
    timer = tonumber(args[3])
    print("Timer:",tonumber(args[3]))
else
    print("Timer:",dtimer,"(Default)")
end

-- Edited built in functions
local turt = {
    forward = function()
        local fueltypes = {"coal","charcoal","lava"}
        if turtle.getFuelLevel() <= 0 then
            print("Panik! No Fuel!")
        end
        while true do
            if turtle.getFuelLevel() > 0 then
                break
            end
            for i=1,16 do
                local data = turtle.getItemDetail(i)
                for ind=1,#fueltypes do
                    if data and string.find(data.name,fueltypes[ind]) then
                        turtle.select(ind)
                        turtle.refuel(turtle.getItemCount(ind))
                    end
                end
            end
        end
        while not turtle.forward() do
            turtle.dig()
        end
    end,
    lookFor = function(list)
        if not list then error("Table required for argument 2") end
        for i=1,16 do
            local data = turtle.getItemDetail(i)
            for ind=1,#list do
                if data and string.find(data.name,list[ind]) then
                    return ind
                end
            end
        end
    end
}

local function placeSeed()
    local seedslot = turt.lookFor(seeds)
    if seedslot and seedslot ~= turtle.getSelectedSlot() then
        print(seedslot)
        turtle.select(seedslot)
    elseif not seedslot then
        print("Panik! No Seeds!")
        while not turt.lookFor(seeds) do
            sleep(1)
        end
        turtle.select(turt.lookFor(seeds))
    end
    turtle.placeDown()
    turtle.suckDown()
end

--Farm Circuit
local function farmCircuit()
    turtle.up()
    turt.forward()
    turtle.digDown()
    turtle.suckDown()
    placeSeed()
    turtle.turnRight()
    for z=1,depth do
        for x=1,width-1 do
            turt.forward()
            turtle.digDown()
            turtle.suckDown()
            placeSeed()
        end
        if z ~= depth then
            if z % 2 == 0 and  then
                turtle.turnRight()
                turt.forward()
                turtle.turnRight()
            else
                turtle.turnLeft()
                turt.forward()
                turtle.turnLeft()
            end
            turtle.digDown()
            turtle.suckDown()
            placeSeed()
        else

        end
    end

end

--Checking for an instant start arg or not
if args[4] then
    while true do
        farmCircuit()
        sleep(dtimer*60)
    end
else
    while sleep(dtimer*60) do
        farmCircuit()
    end
end