Quarry zwischen Bereich

local depth = ll
local collected = 0

local function collect()
    collected = collected + 1
    if math.fmod(collected, 25) == 0 then
        print( "Mined "..collected.." items." )
    end
end

local function tryDig()
    while turtle.detect() do
        if turtle.dig() then
            collect()
            sleep(0.5)
        else
            return false
        end
    end
    return true
end

local function tryDigUp()
    while turtle.detectUp() do
        if turtle.digUp() then
            collect()
            sleep(0.5)
        else
            return false
        end
    end
    return true
end

local function tryDigDown()
        while turtle.detectDown() do
                if turtle.digDown() then
                        collect()
                        sleep(0.5)
                else
                        return false
                end
        end
        return true
end

local function refuel()
    local fuelLevel = turtle.getFuelLevel()
    if fuelLevel == "unlimited" or fuelLevel > 0 then
        return
    end

    local function tryRefuel()
        for n=1,16 do
            if turtle.getItemCount(n) > 0 then
                turtle.select(n)
                if turtle.refuel(1) then
                    turtle.select(1)
                    return true
                end
            end
        end
        turtle.select(1)
        return false
    end

    if not tryRefuel() then
        print( "Add more fuel to continue." )
        while not tryRefuel() do
            sleep(1)
        end
        print( "Resuming Tunnel." )
    end
end

local function tryUp()
    refuel()
    while not turtle.up() do
        if turtle.detectUp() then
            if not tryDigUp() then
                return false
            end
        elseif turtle.attackUp() then
            collect()
        else
            sleep( 0.5 )
        end
    end
    return true
end

local function tryBack()
        refuel()
        while not turtle.back() do
                if turtle.detect() then
                        if not tryDig() then
                                return false
                        end
                elseif turtle.attack() then
                        collect()
                else
                        sleep( 0.5 )
                end
        end
        return true
end

local function tryDown()
    refuel()
    while not turtle.down() do
        if turtle.detectDown() then
            if not turtle.digDown() then
                return false
            end
        elseif turtle.attackDown() then
            collect()
        else
            sleep( 0.5 )
        end
    end
    return true
end

local function tryForward()
    refuel()
    while not turtle.forward() do
        if turtle.detect() then
            if not tryDig() then
                return false
            end
        elseif turtle.attack() then
            collect()
        else
            sleep( 0.5 )
        end
    end
    return true
end
print("Wie lang ist der Bereich?")
ll=io.read()
print("Wie tief ist der Bereich")
tt=io.read()
tt=tt-1

print( "Tunnelling..." )

for n=1,ll do
        for x1=1,tt do
        tryDigDown()
            tryDown()
    end
        turtle.turnRight()
    tryDig()
    tryForward()
    for x2=1,tt do
            tryDigUp()
            tryUp()
        end
    tryBack()
        turtle.turnLeft()
    tryDig()
    tryForward()

--  if n < ll then
--      tryDig()
--      if not tryForward() then
--          print( "Aborting Tunnel." )
--          break
--      end
--  else
--      print( "Tunnel complete." )
--  end

end


print( "Returning to start..." )

-- Return to where we started
turtle.turnLeft()
turtle.turnLeft()
while depth > 1 do
    if tryForward() then
        depth = depth - 1
    else
        turtle.dig()
    end
end
turtle.turnRight()
turtle.turnRight()


print( "Tunnel complete." )
print( "Mined "..collected.." items total." )