Quarry 3

--Quarry a function by Maximumrider999

file = io.open("variables.txt", "rb")

local lines = {}

for line in io.lines("variables.txt") do
    local words = {}
    for word in line:gmatch("%w+") do
        table.insert(words, word)
    end
  table.insert(lines, words)
end


local loops = 15
local j = tonumber(lines[2][1])
local position1 = tonumber(lines[3][1])
local position2 = tonumber(lines[4][1])
local position3 = tonumber(lines[5][1])
local currentK = tonumber(lines[6][1])
local currentLoop = tonumber(lines[7][1])
local heading = tonumber(lines[8][1])
local torch = 2
local fuel = 1
local chest = 3

--Vars
local tArgs = {...}
if tArgs[1] ~= nul then
    print("test")
    local loops = tonumber(tArgs[1])
    local torch = 2
    local fuel = 1
    local chest = 3
    local j = 0
    local position1 = 1
    local position2 = 1
    local position3 = 1
    local currentk = 0
    local currentLoop = 0
    local heading = 0
end
--Functions

function Edit(changeNumber, change)

    file = io.open("variables.txt", "r")
    local fileContent = {}
    for line in file:lines() do
        table.insert (fileContent, line)
    end
    io.close(file)

    fileContent[changeNumber] = change

    file = io.open("variables.txt", 'w')
    for index, value in ipairs(fileContent) do
        file:write(value..'\n')
    end
    io.close(file)
end

--Edit(1, loops)

function tfuel(amount)
    if turtle.getFuelLevel() < amount then do
        turtle.select(fuel)
        turtle.refuel()
    end
end
end

function digForward(amount, p, i2)
    if  amount < 1 then
        amount = 1
    end
    for i = 1, amount do
        while turtle.detect() == true do
            turtle.dig()
        end
        turtle.forward()
        if heading == 1 or heading == 2 then
            Edit(p,i2)
        end
        turtle.select(16)
        if turtle.getItemCount() > 0 then
            if heading == 1 then
                turtle.turnLeft()
                heading = 3
                Edit(8, heading)
                turtle.select(chest)
                turtle.place()
                for i = 4, 16 do
                    turtle.select(i)
                    turtle.drop()
                end
                turtle.turnRight()
                heading = 1
                Edit(8, heading)
            end
            if heading == 2 then
                turtle.turnRight()
                heading = 3
                Edit(8, heading)
                turtle.select(chest)
                turtle.place()
                for i = 4, 16 do
                    turtle.select(i)
                    turtle.drop()
                end
                turtle.turnLeft()
                heading = 2
                Edit(8, heading)
            end
        end
        turtle.select(1)
        turtle.digUp()
        turtle.digDown()
    end
end

function placeTorch()
    turtle.select(torch)
    turtle.placeDown()
end

function turnAround()
    turtle.turnLeft()
    turtle.turnLeft()
end

--Main
 for i = currentLoop, loops do
    Edit(7, i)
    if heading == 0 and position1 == 1 then
        if j == 3 then
            j = 0
        else
            j = j + 1
            Edit(2, j)
        end
    end
    for k = currentK,2 do
        Edit(6, k)
        tfuel(1000)
        if position1 == 1 then
            --[[turtle.select(16)
            if turtle.getItemCount() > 0 then
                if heading == 0 then
                    turnAround()
                end
                turtle.select(chest)
                turtle.place()
                for i = 4, 16 do
                    turtle.select(i)
                    turtle.drop()
                end
                turnAround()
                heading = 0
                Edit(8, heading)
            end]]
            turtle.select(1)
            digForward(1)
            turtle.turnLeft()
            heading = 1
            Edit(8, heading)
        end
        if heading == 3 then
            if position2 == 7 then
                turtle.turnLeft()
                heading = 2
                Edit(8, heading)
            else
                turtle.turnRight()
                heading = 1
                Edit(8, heading)
            end
        end
        if heading == 1 then
            print("test")
            for i = position1,5 do
                Edit(3, i)
                digForward(1,3,i+1)
                --Edit(3, i+1)
            end
            print("test2")
            Edit(3,6)
            if j == 3 and k == 0 then
                placeTorch()
            end
            for i = position2,6 do
                Edit(4, i)
                digForward(1,4,i+1)
                --Edit(4, i+1)
            end
            print("test3")
            Edit(4,7)
            if j == 3 and k == 0 then
                placeTorch()
            end
            turtle.turnRight()
            heading = 0
            Edit(8, heading)
        end
        if heading == 0 then
            digForward(1)
            turtle.turnRight()
            heading = 2
            Edit(8, heading)
        end
        if heading == 2 then
            for i = position3,11 do
                Edit(5, i)
                digForward(1,5,i+1)
                --Edit(5, i+1)
            end
            Edit(5,12)
            turtle.turnLeft()
            heading = 0
            Edit(8, heading)
        end
        if j == 3 and k == 0 then
            placeTorch()
        end
        turtle.digUp()
        turtle.digDown()
        if k ~= 2 then
            turtle.back()
            turtle.back()
            turtle.digUp()
            turtle.up()
            turtle.digUp()
            turtle.up()
            turtle.digUp()
            turtle.up()
        end
        position1 = 1
        position2 = 1
        position3 = 1
        Edit(3,1)
        Edit(4,1)
        Edit(5,1)
    end
    for i = 1,6 do
        turtle.down()
    end
    Edit(6,0)
    currentK = 0
 end