[FTB] [Mining-Turtle] 2x3-Tunnel mit Rails & Fackeln

local torches=true --Fackeln an/aus (true/false)
local rails=false --Schienen an/aus (true/false)
local tl=100 --Tunnellaenge
local fuelcheck=true --Turtles brauchen Fuel an/aus

local pos=0
local sr=true

local function forward()
while turtle.forward()==false do
    turtle.dig()
    turtle.attack()
    turtle.suck()
    sleep(.6)
end
end

local function up()
while turtle.up()==false do
    turtle.digUp()
    turtle.attackUp()
    turtle.suckUp()
    sleep(.6)
end
end

local function down()
while turtle.down()==false do
    turtle.digDown()
    turtle.attackDown()
    turtle.suckDown()
    sleep(.6)
end
end

local function zurueck()
    if sr==false then
        turtle.turnLeft()
        forward()
        turtle.turnLeft()
        down()
    else
        turtle.turnLeft()
        turtle.turnLeft()
        down()
    end
    for i=pos, 1, -1 do
        forward()
    end
end

local function kceuruz()
        turtle.turnRight()
        turtle.turnRight()
        for i=1, pos, 1 do
            forward()
        end
        if sr==false then
            up()
            turtle.turnRight()
            forward()
            turtle.turnLeft()
        else
            up()
        end
end

local function check()
if torches==true then
    if turtle.getItemCount(1)<=1 then
        if pos>0 then
            zurueck()
        end
        print("Keine Fackeln mehr. Bitte Fackeln in Slot 1 geben und [Enter] druecken")
        io.read()
            if pos>0 then
                kceuruz()
            end
    end
    if rails==true then
    if turtle.getItemCount(2)<=1 then
        if pos>0 then
            zurueck()
        end
        print("Keine Schienen mehr. Bitte Schienen in Slot 2 geben und [Enter] druecken")
        io.read()
        if pos>0 then
            kceuruz()
        end
    end
    end
end
end

local function unload()
    if turtle.getItemCount(16)>0 then
        zurueck()
        local sn=3
        repeat
            turtle.select(sn)
            turtle.drop()
            sn=sn+1
        until sn==17
        turtle.select(1)
        kceuruz()
    end
end

local function fuel()
    if turtle.getFuelLevel()<=pos+3 then
        zurueck()
        turtle.select(3)
        print("Kein Treibstoff mehr. Bitte Treibstoff in Slot 3 geben und [Enter] druecken.")
        io.read()
        turtle.refuel()
        turtle.select(1)
        kceuruz()
    end
end


local function schicht()
    check()
    unload()
    if fuelcheck==true then
    fuel()
    end
    if sr==true then
        turtle.dig()
        forward()
        turtle.digUp()
        turtle.digDown()
        turtle.turnRight()
        turtle.dig()
        forward()
        turtle.digUp()
        turtle.digDown()
        if rails==true then
            turtle.select(2)
            turtle.placeDown()
        end
        turtle.turnLeft()
    elseif sr==false then
        turtle.dig()
        forward()
        turtle.digUp()
        turtle.digDown()
        if rails==true then
            turtle.select(2)
            turtle.placeDown()
        end
        turtle.turnLeft()
        turtle.dig()
        forward()
        turtle.digUp()
        turtle.digDown()
        turtle.turnRight()
    end
    sr=not sr
    pos=pos+1
end

local function fackel()
    if torches==true then
        turtle.select(1)
        turtle.turnRight()
        turtle.place()
        turtle.turnLeft()

    end
end

local function start()
        check()
        turtle.digUp()
        up()
        if tl>=4 then
            for i=1, 4, 1 do
                schicht()
            end
                fackel()
                tl=tl-4
        end
end

-----------------------------------

start()
for i=tl, 0, -1 do
    if i>=8 then
        for i=1, 8, 1 do
            schicht()
        end
        fackel()
    else
        schicht()
    end
end
zurueck()
turtle.turnLeft()
turtle.turnLeft()
print("Bau des Tunnels scheint beendet.")