5x5farm

-- Script by zortag - The turtle reach the starting position from everywhere and face correctly, farm a 5x5 field then drop in a
-- chest, come back to starting point, check fuel and refuel if needed. The script automatically skips useless steps
-- This script needs this other script to work pastebin.com/UYfrBtbj named "moveto"
-- This script needs a GPS tower (www.computercraft.info/forums2/index.php?/topic/3088-how-to-guide-gps-global-position-system/)
-- It is better to configure the GPS tower coordinates with the real position where computers are, so it is easier configure the
-- turtle starting point using real coordinates. Rename the script "startup" (it auto resume from averywhere)
-- The turtle needs an hoe and a wireless modem installed
-- You have to configure the coordinates for the turtle (press F3 and use feet position):
-- Starting point: line 123
-- Align point: line 124 (same as starting coordinates but +2 at the facing axis)
-- Starting point check: line 195 (same as starting point, be sure axis are correct)
-- Field design (image at i.imgur.com/hvtTQNV.jpg)
-- H = dirt, W = water, S = starting point, D = drop point
-- fuel pickup is 1 block under the starting position (can be a chest under the turtle)
-- drop chest is at the same level the turtle is
--
--      HHHHH
--      HHHHH
--      HHWHH
--      HHHHH
--      HHHHH
--          S
--          |
--          +---D

function dig()
    turtle.digDown()
    turtle.forward()
    turtle.digDown()
    turtle.forward()
    turtle.digDown()
    turtle.forward()
    turtle.digDown()
    turtle.forward()
    turtle.digDown()
end

function left()
    turtle.turnLeft()
    turtle.forward()
    turtle.turnLeft()
end

function right()
    turtle.turnRight()
    turtle.forward()
    turtle.turnRight()
end

function left2()
    turtle.turnLeft()
    turtle.turnLeft()
end

function place()
    turtle.select(1)
    turtle.placeDown()
    turtle.forward()
    turtle.placeDown()
    turtle.forward()
    turtle.placeDown()
    turtle.forward()
    turtle.placeDown()
    turtle.forward()
    turtle.placeDown()
end

function fuel()
    term.setCursorPos(1, 1)
    write("Fuel left ")
    write(turtle.getFuelLevel())
end

function eat()
    if turtle.getFuelLevel() < 1000 then
    term.clear()
    term.setCursorPos(1, 1)
    print("Refuelling...")
    turtle.select(16)
    turtle.suckDown()
    turtle.refuel()
    term.clear()
    term.setCursorPos(1, 1)
    print("Done!")
    sleep(2)
    else
    term.clear()
    term.setCursorPos(1, 1)
    print("I'm fine, let's go working!")
    sleep(2)
    end
end

function sleeping()
    local w = 0
    while w <= 40 do
        if w == 0 then
        term.clear()
        term.setCursorPos(1, 1)
        fuel()
        term.setCursorPos(1, 2)
        print("Waiting 40 minutes")
        sleep(60)
        w = w + 1
        elseif w ==40 then
        print("Restarting...")
        sleep(2)
        break
        else
    term.setCursorPos(1, 1)
    fuel()
    term.setCursorPos(1, 3)
    print(w, " minutes passed")
    sleep(60)
    w = w + 1
        end
    end
end

function gohome()
    term.clear()
    write("Positioning...")
    shell.run("moveto", 335,66,15)
    shell.run("moveto", 335,66,13)
    turtle.back()
    turtle.back()
    turtle.down()
    term.setCursorPos(1,2)
    term.write("I'm at home")
    sleep(2)
end

function job()
    term.clear()
    fuel()
    term.setCursorPos(1, 2)
    write("Farming...")
    turtle.select(1)
    turtle.up()
    turtle.forward()
    dig()
    left()
    dig()
    right()
    dig()
    left()
    dig()
    right()
    dig()
    left2()
    place()
    left()
    place()
    right()
    place()
    left()
    place()
    right()
    place()
        turtle.forward()
        turtle.forward()
        turtle.forward()
        turtle.turnLeft()
        turtle.forward()
        turtle.forward()
        turtle.forward()
        turtle.forward()

            term.clear()
            fuel()
            term.setCursorPos(1, 2)
            write("Dropping...")
function dropItems()
    for slot = 2, 15 do
        turtle.select(slot)
        turtle.dropDown()
end
    end
        dropItems()
        left2()
        turtle.forward()
        turtle.forward()
        turtle.forward()
        turtle.forward()
        turtle.turnRight()
        turtle.forward()
        turtle.forward()
        turtle.down()
        sleeping()
end
while true do

local x, y, z = gps.locate(5)

    if x == 335 and y == 65 and z == 15 then
    job()
        else
        gohome()
    end
    eat()
end