farm

local m = require("blib")
m.map = {x = 1, y = 1, z = 1, xf = 0, yf = 1}
local Length
local Width

function isWaterBlock()
    if m.map.x % 9 == 5  and m.map.y % 9 == 5 then
        return true
    end
end

function PlaceDirtBlock()
    if m.SelectItem("minecraft:dirt") then
        turtle.digDown()
        turtle.placeDown()
        return true
    end
    return false

end

function Start()

    for x = 1, Width do                         -- starting length cuts one turn off, but not one column off. see below

        for y = 1, Length - 1 do                -- width cuts one length down off the next

            -- check for fuel
            if(not m.CheckFuel(10)) then
                return Shutdown("Out of Fuel!")
            end

            if not isWaterBlock() then
                PlaceDirtBlock()
            else
                turtle.digDown()
            end
            m.MapForward()
        end

        PlaceDirtBlock() -- Place block on turns

        if( Width - x ~= 0) then -- Technically on the last column, we want to continue forward so we can't do 'Width - 1', but don't turn into the next column
            if(lastTurn == "Right") then -- if we're on an even column, turn left
                m.MapTurnLeft()
                m.MapForward()
                m.MapTurnLeft()
                lastTurn = "Left"
            else -- odd columns (start is 1 btw) turn right!
                m.MapTurnRight()
                m.MapForward()
                m.MapTurnRight()
                lastTurn = "Right"
            end
        end

    end


end

function Main()
    local response
    print("Welcome to the Minecraft farm plot builder!")
    print("please enter how many plots LONG you want to build!")
    local plotsLong = read()
    Length = 9 * plotsLong
    print("please enter how many plots WIDE you want to build!")
    local plotsWide = read()
    Width = 9 * plotsWide

    Start()

    print("Finished!")
end
Main()