Mining turtle (3 direction) + fuel algoritm

local lefele = 0
local jobbra = 0
local elore = 0
local y = 0
local x = 0
local z = 0
local fakja = 0

local c = turtle.compare()
local cu = turtle.compareUp()
local cd = turtle.compareDown()


function refuel()
 local fuel = turtle.getFuelLevel()
 local uthossz = jobbra + lefele + elore * 2
 if fuel - 10 < uthossz then
  print("keves az uzemanyag az utra")
  print("uzemanyag: ", fuel)
  sleep(1)
 end
 while fuel < 1 do
  print("keves az uzemanyag: ", fuel)
  for i = 1, 16 do
   turtle.select(i)
   if turtle.refuel(1) then
    print("tankoltam ennyituzemanyagot: ", turtle.getFuelLevel()) sleep(1)
    return
   else
    if i == 16 then
     print("nem volt mit tankolni") sleep(1)
    end
   end
  end
 end
end

refuel()

function install()
if not fs.exists("/z") then
    iteminstall()
    print("/x2 file letrehozasa")
    sleep(.2)
    file = fs.open("/x2","w")
    file.writeLine("0")
    file.close()
    print("kesz")
    sleep(.6)

    print("/y2 file letrehozasa")
    sleep(.2)
    file = fs.open("/y2","w")
    file.writeLine("0")
    file.close()
    print("kesz")
    sleep(.6)

    print("/z2 file letrehozasa")
    sleep(.2)
    file = fs.open("/z2","w")
    file.writeLine("0")
    file.close()
    print("kesz")
    sleep(.6)

    print("/x file letrehozasa")
    sleep(.2)
    file = fs.open("/x","w")
    file.writeLine("0")
    file.close()
    print("kesz")
    sleep(.6)

    print("/y file letrehozasa")
    sleep(.2)
    file = fs.open("/y","w")
    file.writeLine("0")
    file.close()
    print("kesz")
    sleep(.6)

    print("/z file letrehozasa")
    sleep(.2)
    file = fs.open("/z","w")
    file.writeLine("0")
    file.close()
    print("kesz")
    sleep(.6)
    return miner()
    else
    miner()
    end
end

function iteminstall()
local fakjadarab = turtle.getItemCount(1)
    while fakjadarab < 16 do
        cls()
        fakjadarab = turtle.getItemCount(1)
        fakjakell = 16 - fakjadarab
        print("Elso sor, elso slotba, rakj 16db fakjat.")
        print("Meg ennyi kell: ".. fakjakell)
        print("Ha beraktad, folytatodik a program")
        sleep(0.4)
        cls()
    end
end

function load()
    file = fs.open("z2", "r")
    if file then
        jobbra = file.readLine()
        file.close()
        print("z2: ", jobbra)
        sleep(.2)
    jobbra = jobbra + 0
    end

    file = fs.open("x2", "r")
    if file then
        elore = file.readLine()
        file.close()
        print("x2: ", elore)
        sleep(.2)
    elore = elore + 0
    end

    file = fs.open("y2", "r")
    if file then
        lefele = file.readLine()
        file.close()
        print("y2: ", lefele)
        sleep(.2)
        lefele = lefele + 0
    end

    file = fs.open("x", "r")
    if file then
        x = file.readLine()
        file.close()
        print("x: ", x)
        sleep(.2)
        x = x + 0
    end

    file = fs.open("y", "r")
    if file then
        y = file.readLine()
        file.close()
        print("y: ", y)
        sleep(.2)
        y = y + 0
    end

    file = fs.open("z", "r")
    if file then
        z = file.readLine()
        file.close()
        print("z: ", z)
        sleep(.2)
        z = z + 0
    end
end

function cls()
term.clear()
term.setCursorPos(1,1)
end

function dropall()              --Chestnel minden slotot kiurit kiveve az egyest.
 for i = 4, 16 do
  turtle.select(i)
  turtle.drop()
 end
end

function kiut()
refuel()
 if turtle.compare(2) then
  local slot = turtle.getSelectedSlot()
  turtle.select(3)
  while turtle.getItemCount(3) > 1 do
   turtle.drop(1)
  end
  turtle.select(slot)
 end
turtle.select(2)
turtle.dig()
turtle.digUp()
turtle.digDown()
if fakja==16 then
turtle.select(1)
turtle.placeDown()
turtle.select(2)
fakja = 0
end
fakja = fakja + 1
end

function zback()
 refuel()
    while not turtle.forward() do
        if turtle.detect() == true then
        cls()
        print("blokkot talaltam")
        turtle.dig()
        else
        refuel()
        print("mob van elottem. Tamadok!")
        turtle.attack()
        end
    end
end

function digdown()
 refuel()
 while not turtle.down() do
  if turtle.detectDown() then
   if turtle.digDown() then
    cls()
    print("blokkot talaltam alattam")
   else
    cls()
    print("bedrockba utkoztem")
   end
  else
   refuel()
   print("mob van alattam")
  end
 end
end


function digforward()
 refuel()
    while not turtle.forward() do
        if turtle.detect() == true then
        cls()
        print("blokkot talaltam")
        kiut()
        else
        refuel()
        print("mob van elottem. Tamadok!")
        turtle.attack()
        end
    end
end

function back()
 refuel()
    while not turtle.forward() do
        if turtle.detect() == true then
        cls()
        print("blokkot talaltam")
        kiut()
        else
        refuel()
        print("mob van elottem. Tamadok!")
        turtle.attack()
        end
    end
end

function digup()
 refuel()
    while not turtle.up() do
        if turtle.detectUp() == true then
        cls()
        print("blokk van felettem")
        turtle.digUp()
        else
        refuel()
        print("mob van felettem")
        end
    end
end

function miner()
load()
cls()
if jobbra<1 and lefele<1 and elore<1 and x<1 and y<1 and z<1 then
print("mennyit menjek jobbra")
jobbra = tonumber(read())
if jobbra == nil then
cls()
print("Jobbra csak szamot lehet megadni!")
return miner()
end
if jobbra<2 then
print("min 2")
sleep(1)
return miner()
end
if jobbra>50 then
print("max 50")
sleep(1)
return miner()
end
file = fs.delete("z2")
file = fs.open("/z2","w")
file.writeLine(jobbra)
file.close()
jobbra = jobbra + 0
end
if jobbra>0 and lefele<1 and elore<1 then
print("mennyit menjek le")
lefele = tonumber(read())
if lefele == nil then
cls()
print("lefele csak szamot lehet megadni!")
return miner()
end
if lefele>60 then
print("max 60")
sleep(1)
return miner()
end
file = fs.delete("y2")
file = fs.open("/y2","w")
file.writeLine(lefele)
file.close()
lefele = lefele + 0
end
if jobbra>0 and lefele>0 and elore<1 then
cls()
print("mennyit menjek elore")
elore = tonumber(read())
if elore == nil then
cls()
print("Elore csak szamot lehet megadni!")
return miner()
end
if elore>50 then
print("max 50")
sleep(1)
return miner()
end
file = fs.delete("x2")
file = fs.open("/x2","w")
file.writeLine(elore)
file.close()
elore = elore + 0
end

if jobbra>0 and lefele >0 and elore >0 then
turtle.select(1)
    if z<1 and x<1 and y<1 then
    local fakjadarab = turtle.getItemCount(1)
        while fakjadarab < 16 do
                cls()
                fakjadarab = turtle.getItemCount(1)
                fakjakell = 16 - fakjadarab
                print("Elso sor, elso slotba, rakj 16db fakjat.")
                print("Meg ennyi kell: ".. fakjakell)
                print("Ha beraktad, folytatodik a program")
                sleep(0.4)
                cls()
        end
    end
for i = 1, jobbra do
    if z<1 then
    turtle.turnRight()
    end
digforward()
jobbra = jobbra - 1
file = fs.delete("z2")
file = fs.open("/z2","w")
file.writeLine(jobbra)
file.close()
z = z + 1
file = fs.delete("z")
file = fs.open("/z","w")
file.writeLine(z)
file.close()
print("z:", z)
end
end


if jobbra<1 and lefele>0 then
for i = 1, lefele do
    if y<1 then
    turtle.turnLeft()
    end
digdown()
lefele = lefele - 1
file = fs.delete("y2")
file = fs.open("/y2","w")
file.writeLine(lefele)
file.close()
y = y + 1
file = fs.delete("y")
file = fs.open("/y","w")
file.writeLine(y)
file.close()
print("lefele: ", lefele)
print("y:", y)
end
end


if lefele<1 and elore>0 then
for i = 1, elore do
digforward()
elore = elore - 1
file = fs.delete("x2")
file = fs.open("/x2","w")
file.writeLine(elore)
file.close()
x = x + 1
file = fs.delete("x")
file = fs.open("/x","w")
file.writeLine(x)
file.close()
print("elore", elore)
print("x:", x)
end
turtle.turnLeft()
turtle.turnLeft()
end


if elore<1 and x>0 then
for i = 1, x do
back()
x = x - 1
file = fs.delete("x")
file = fs.open("/x","w")
file.writeLine(x)
file.close()
print("x", x)
end
end


if x<1 and y>0 then
for i = 1, y do
digup()
y = y - 1
file = fs.delete("y")
file = fs.open("/y","w")
file.writeLine(y)
file.close()
print("y:", y)
end
if y<1 and z>0 then
turtle.turnRight()
end
end

if y<1 and z>0 then
for i = 1, z do
zback()
z = z - 1
file = fs.delete("z")
file = fs.open("/z","w")
file.writeLine(z)
file.close()
print("z:", z)
if z<1 then
dropall()
turtle.turnRight()
end
end
end


end

while true do
install()
sleep(.1)
end