Garden

tArgs = { ... }
width, height = tonumber(tArgs[1]), tonumber(tArgs[2])

fuel = 1
local function refuel()
    if turtle.getFuelLevel() < 100 then
        local prev = turtle.getSelectedSlot()
        turtle.select(1)
        if not turtle.refuel(1) then
            print('Need more fuel')
            while not turtle.refuel(1) do
                sleep(1)
            end
        end
        turtle.select(prev)
    end
end

local function tryForwards()
    if turtle.detect() then
        turtle.dig()
    end
    while not turtle.forward() do
        sleep(1)
    end
end

local function turn(i)
    if (width - i) % 2 == 0 then
        turtle.turnRight()
        tryForwards()
        turtle.turnRight()
    else
        turtle.turnLeft()
        tryForwards()
        turtle.turnLeft()
    end
end
local function dropAndTurn()
    for i = fuel + 1, 16, 1 do
        turtle.select(i)
        if turtle.getItemCount() > 0 and not turtle.drop() then
            turtle.turnLeft()
            turtle.drop()
            turtle.turnRight()
        end
    end
    turtle.turnRight()
    turtle.turnRight()
end
while true do
    tryForwards()
    for i = 1, width, 1 do
        for j = 1, height-1, 1 do
            refuel()
            tryForwards()
        end
        if i ~= width then
            turn(i)
        end
    end
    turtle.forward()
    turtle.turnRight()
    turtle.suck()
    turtle.turnLeft()

    dropAndTurn()
end