DX Mining Front

--// turtle-slot [1] Item
--// turtle-slot [2] Coal
--// turtle-slot [3] Wireless Modem
-------------------------------------------------------------------------------------------------------------------------
--CODE-------------------------------------------------------------------------------------------------------------------
-------------------------------------------------------------------------------------------------------------------------
--Start height
    local args = {...}
    a = args[1]-1           --Height
    b = args[2]             --Mining Times
    c = a/2
    d = 0           --help

--Startcheck: Fuel-------------------------------------------------------------------------------------------------------
function Start()
    while turtle.getFuelLevel()<(2*a+1000) do
                turtle.select(2)
        turtle.dig()
        turtle.place()
        turtle.suck()
        shell.run("refuel all")
        turtle.select(2)
        turtle.dig()
        end


        print(" ")
        print("--------------------------------")
        print("Starting Quarry!")
    print("Height: ",a+1)
    print("Times:  ",b)
        print("--------------------------------")
end



--Items to Ender-Chest---------------------------------------------------------------------------------------------------
function Item()
        turtle.dig()
        turtle.select(1)
        turtle.place()
        for i=4,16,1 do
                turtle.select(i)
                turtle.drop()
        sleep(0.5)
        end
        turtle.select(1)
        turtle.dig()
end


--Mining actions---------------------------------------------------------------------------------------------------------
function forward()
    while turtle.forward()==false do
        sleep(0.5)
        turtle.dig()
        attack()
    end
end

function up()
    while turtle.up()==false do
        sleep(0.5)
        attackUp()
    end
end

function down()
    while turtle.down()==false do
        sleep(0.5)
        turtle.digDown()
        attackDown()
    end
end

--Attack actions---------------------------------------------------------------------------------------------------------
function attack()
    turtle.select(3)
    turtle.equipLeft()
    turtle.attack()
    turtle.equipLeft()
end

function attackUp()
    turtle.select(3)
    turtle.equipLeft()
    turtle.attackUp()
    turtle.equipLeft()
end

function attackDown()
    turtle.select(3)
    turtle.equipLeft()
    turtle.attackDown()
    turtle.equipLeft()
end


--Mining Forms-----------------------------------------------------------------------------------------------------------
function Mine()
    Start()
    turtle.digDown()
    turtle.turnRight()
    turtle.dig()
    turtle.turnLeft()
    turtle.dig()
    turtle.turnLeft()
    turtle.dig()
    for o=1,c,1 do
        turtle.digDown()
        down()
        turtle.dig()
        turtle.turnRight()
        turtle.dig()
        turtle.turnRight()
        turtle.dig()
        turtle.digDown()
        down()
        turtle.dig()
        turtle.turnLeft()
        turtle.dig()
        turtle.turnLeft()
        turtle.dig()
    end
    turtle.digDown()
    turtle.down()
    if turtle.down()==true then
        d=1
    end
    turtle.dig()
    turtle.turnRight()
    turtle.dig()
    turtle.turnRight()
    turtle.dig()
    turtle.turnLeft()
    if d==1 then
        up()
    end
    for p=1,c*2,1 do
        up()
    end
    Item()
end

function Next()
    up()
    for i=1,16,1 do
        while turtle.forward()==false do
            sleep(1)
        end
    end
    down()
end

-------------------------------------------------------------------------------------------------------------------------
--Actions----------------------------------------------------------------------------------------------------------------
-------------------------------------------------------------------------------------------------------------------------
for t=1,b,1 do
    Mine()
    Next()
end