mineSides

--Local
local distance = 0 -- How Far Did User Pick
local torchDist = 7 -- When to Place Torch
local onlight = 0
local Fuel = 0 -- if 2 then it is unlimited no fuel needed
local NeedFuel = 0 -- If Fuel Need Then 1 if not Then 0
local Error = 0 -- 0 = No Error and 1 = Error

--Place torch
local function PlaceTorch()
    if useTorch == "y" then
        if onlight <= 0 then
            repeat
                if turtle.getItemCount(3) > 0 then
                    turtle.select(3)
                    turtle.placeDown()
                    turtle.select(4)
                    onlight = torchDist
                else
                    print("turtle run out of torchs")
                    sleep(10)
                end
            until onlight > 0
        else
            onlight = onlight - 1
        end
    end
end

--Empty slot 4 to 16 will go to chest
local function EmptyInventory()
    repeat
        if turtle.getItemCount(1) > 0 then
            turtle.digDown()
            turtle.select(1)
            turtle.placeDown()
            for slot = 4, 16 do
                turtle.select(slot)
                turtle.dropDown()
                sleep(0.5)
            end
            turtle.select(4)
        else
            print("turtle run out of chest")
            sleep(10)
        end
    until turtle.getItemCount(16) == 0
end

--Refueling
local function RefuelTurtle()
    if turtle.getFuelLevel() ~= "unlimited" and turtle.getFuelLevel() < 10 then
        repeat
            Needfuel = 1
            ItemFuel = turtle.getItemCount(2)
            if ItemFuel > 0 then
                turtle.select(2)
                turtle.refuel(1)
                turtle.select(4)
            else
                print("turtle run out of fuel")
                sleep(10)
            end
        until NeedFuel == 0
    end
end

--Move forward
local function Forward()
    repeat
        if turtle.getItemCount(16) > 0 then
            EmptyInventory()
        end
        if turtle.detect() then
            turtle.dig()
        end
        if turtle.forward() then -- sometimes sand and gravel and block and mix-up distance
            moves = moves - 1
        end
        if turtle.detectUp() then
            turtle.digUp()
        end
        if turtle.detectDown() then
            turtle.digDown()
        end
        PlaceTorch()
        RefuelTurtle()
    until moves <= 0
end

--Full mining cycle
function Mining()
    turtle.select(4)
    turtle.digUp()
    turtle.digDown()
    PlaceTorch()

    moves = distance / 2
    turtle.turnRight()
    Forward()

    sides = 3
    repeat
        turtle.turnLeft()
        moves = distance
        Forward()
        sides = sides - 1
    until sides == 0

    moves = distance / 2
    turtle.turnLeft()
    Forward()
end

--Start
print("Hi There Welcome to Mining Turtle Program")
print("Chest in slot 1")
print("Fuel in slot 2")
print("Torch in slot 3")
print("Use torches y/n")
useTorch = read()

print("How Far Will Turtle Go")
distance = tonumber(read()) - 1

Mining()
turtle.turnLeft()
EmptyInventory()

print("Done")