startup

    --VARIABLES

local line                                      --line inside file
local stringQuestionAsked                       --Question for the Menu
local x,y = term.getSize()                      --Size of the screen
local highlighted = 1                           --Chosen Element inside menu
local choices = {}                              --Table of choices inside menu
local chosenOne                                 --Chosen element of the menu
local success, data
local i
local m
local n

    --FILES

    --Names

local turtleDataFile = "turtleDataFile"         --Name of the File that saves 1: X coordinate, 2: Z coordinate, 3: Rotation, 4: Number of Holes
local overseerIDFile = "overseerID"             --Name of the File that saves the IDs of every Overseer
local trashBlockFile = "trashBlock"             --Name of the File that saves every Block that the Turtle shouldn't mine
local trackingBlockFile = "trackingBlock"       --Name of the File that saves the Blocks that are supposed to be tracked
local blockStatsFile = "BlockStats"             --Name of the File that keeps track of the number of Blocks mined of the Blocks it should keep track of

    --Tables

local turtleData = {}                           --Table to save the Data inside the turtleDataFile
local overseerID = {}                           --Table to save the Data inside the overseerIDFile
local trashBlock = {}                           --Table to save the Data inside the trachBlockFile
local newTrashBlock = {}                        --Table to save the new Data of Trash Blocks
local nameTrashBlock = {}
local trackingBlock = {}                        --Table to save the Data inside the trackingBlockFile
local blockStats = {}                           --Table to save the Data inside the blockStatsFile

    --FUNKTIONS

function load(fileName,arrayName)               --Loading data that is inside File
    file = fs.open("Data/"..fileName,"r") -- Open a file for reading.
    line = file.readLine() -- This function reads the next line in the file, until the end.
    repeat -- Start a loop which will read lines into a table until no lines are left.
        table.insert(arrayName,line) -- Puts the value of the current line into the table we have.
        line = file.readLine() -- read the next line
    until line == nil -- readLine() returns nil when the end of the file is reached.
    file.close() -- Close up the file ready for use again.
end

function createFile(File)                   --Function that is used for the sole purpose of creating a file without editing it
    local file = fs.open("Data/"..File,"a")
    file.close()
end

function resetScreen()
    term.clear()
    term.setCursorPos(1,1)
end

    --MENU

function writeChoices()         --writes the choices down made for the menu
    for i=1,#choices do
        if i == highlighted then
            term.setCursorPos(((x/2)-(("<| "..choices[i].." |>"):len()/2)),i + 2)
            term.clearLine()
            term.write("<| "..choices[i].." |>")
        else
            term.setCursorPos(((x/2)-(choices[i]:len()/2)),i + 2)
            term.clearLine()
            term.write(choices[i])
        end
    end
end

function menuSelection()                            --waits for key input and changes the highlighted menuElemnt
    while true do
        writeChoices()
        local event, key = os.pullEvent( "key" )
        if key == keys.down then
            highlighted = highlighted + 1
        end
        if key == keys.up then
            highlighted = highlighted - 1
        end
        if key == keys.enter then
            chosenOne = choices[highlighted]
            break
        end
        if highlighted == 0 then
            highlighted = #choices
        end
        if highlighted == #choices + 1 then
            highlighted = 1
        end
    end
end

function Menu()                                     --Creates a menu
    term.clear()
    term.setCursorPos(math.ceil((x/2)-(stringQuestionAsked:len()/2)),1)
    term.write(stringQuestionAsked)
    menuSelection()
end


    --CODE

    --VOID START

fs.makeDir("Data")
createFile(turtleDataFile)
createFile(overseerIDFile)
createFile(trashBlockFile)
createFile(trackingBlockFile)
createFile(blockStatsFile)

load(turtleDataFile,turtleData)
load(overseerIDFile,overseerID)
load(trashBlockFile,trashBlock)
load(trackingBlockFile,trackingBlock)
load(blockStatsFile,blockStats)

turtleData = {}
load(turtleDataFile,turtleData)

if turtleData[1] == nil then        --TurtleData first time installation

    while true do                   --Turtles X Coordinate
        resetScreen()
        term.write("What is the turtles X Coordinate?")
        term.setCursorPos(1,2)
        term.write("X: ")
        local x = read()
        highlighted = 1
        stringQuestionAsked = "Is the X Coordinate really: "..x.."?"
        choices ={"Yes it is","No it's not"}
        Menu()
        if choices[1] == chosenOne then
            table.insert(turtleData,1,x)
            break
        end
    end

    while true do                   --Turtles Z Coordinate
        resetScreen()
        term.write("What is the turtles Z Coordinate?")
        term.setCursorPos(1,2)
        term.write("Z: ")
        local x = read()
        stringQuestionAsked = "Is the Z Coordinate really: "..x.."?"
        highlighted = 1
        Menu()
        if choices[1] == chosenOne then
            table.insert(turtleData,2,x)
            break
        end
    end

    while true do                   --Turtles Rotation
        resetScreen()
        stringQuestionAsked = "Which way is the turtle Facing?"
        choices = {"North","East","South","West"}
        highlighted = 1
        Menu()
        local x = chosenOne
        stringQuestionAsked = "You sure the turtle is facing "..x.."?"
        choices = {"Yes I am","No I'm not"}
        highlighted = 1
        Menu()
        if choices[1] == chosenOne then
            if x == "North" then
                x = "1"
            elseif x == "East" then
                x = "2"
            elseif x == "South" then
                x = "3"
            elseif x == "West" then
                x = "4"
            end

            table.insert(turtleData,3,x)
            break
        end
    end

    table.insert(turtleData,4,"0")
    local file = fs.open("Data/"..turtleDataFile,"a")
    for i=1, #turtleData, 1 do
        file.writeLine(turtleData[i])
    end
    file.close()
end

overseerID = {}
load(overseerIDFile,overseerID)
if overseerID[1] == nil then
    while true do
        resetScreen()
        term.write("What is the overseer's ID?")
        term.setCursorPos(1,2)
        term.write("Command: os.getComputerID()")
        term.setCursorPos(1,3)
        term.write("ID: ")
        local x = read()
        stringQuestionAsked = "Are you sure this is the ID "..x.."?"
        choices = {"Yes I am","No I'm not"}
        highlighted = 1
        Menu()
        if choices[1] == chosenOne then
        local add = true
        load(overseerIDFile,overseerID)
            for i=1, #overseerID, 1 do
                if x == overseerID[i] then
                    add = false
                end
            end
            if add == true then
                local file = fs.open("Data/"..overseerIDFile,"a")
                file.writeLine(x)
                file.close()
            else
                resetScreen()
                term.write("That Overseer has already been added")
                os.sleep(1)
            end
            stringQuestionAsked = "Do you want to add another overseer?"
            choices = {"Yes I do","No I don't"}
            highlighted = 1
            Menu()
            if choices[2] == chosenOne then
                break
            end
        end
    end
end

trashBlock = {}
load(trashBlockFile,trashBlock)
if trashBlock[1] == nil then
    while true do
        stringQuestionAsked = "Add a new Block to ignore"
        choices = {"Type in Code","Place block in front","Banned Blocks","Quit","Tutorial [start]"}
        highlighted = 1
        Menu()
        if choices[1] == chosenOne then --Type in Code
            while true do
                resetScreen()
                print("Type in the code of the Block")
                print("for example minecraft:stone")
                term.write("Code: ")
                local x = read()
                stringQuestionAsked = "Is "..x.." correct?"
                choices = {"Yes it is", "No it isn't"}
                highlighted = 1
                Menu()
                if choices[1] == chosenOne then
                    local add = true
                    trashBlock = {}
                    load(trashBlockFile,trashBlock)
                    for i = 1,#trashBlock,1 do
                        if trashBlock[i] == x then
                            add = false
                        end
                    end
                    if add == true then
                        local file = fs.open("Data/"..trashBlockFile,"a")
                        file.writeLine(x)
                        file.close()
                        resetScreen()
                        print(x.." won't get mined any more.")
                        os.sleep(2)
                    else
                        resetScreen()
                        term.write("That Block has already been added")
                        os.sleep(2)
                    end
                    break
                end
            end
        elseif choices[2] == chosenOne then --Place a Block in front of turtle
            while true do
                success, data = turtle.inspect()
                if data.name == nil then
                    resetScreen()
                    print("You have to place a Block in front of the turtle before starting this function!")
                    os.sleep(3)
                    break
                end
                stringQuestionAsked = "Is "..data.name.." correct?"
                choices = {"Yes it is", "No it isn't"}
                highlighted = 1
                Menu()
                if choices[1] == chosenOne then
                    local add = true
                    trashBlock = {}
                    load(trashBlockFile,trashBlock)
                    for i = 1,#trashBlock,1 do
                        if trashBlock[i] == data.name then
                            add = false
                        end
                    end
                    if add == true then
                        local file = fs.open("Data/"..trashBlockFile,"a")
                        file.writeLine(data.name)
                        file.close()
                        resetScreen()
                        print(data.name.." won't get mined any more.")
                        os.sleep(2)
                        break
                    else
                        resetScreen()
                        term.write("That Block has already been added")
                        os.sleep(2)
                        break
                    end
                end
            end
        elseif choices[3] == chosenOne then --Remove Block from List
            trashBlock = {}
            newTrashBlock = {}
            load(trashBlockFile,trashBlock)
            newTrashBlock = trashBlock
            for i=1,#trashBlock do
                stringQuestionAsked = "Remove "..nameTrashBlock[i].."?"
                choices = {"Yes I will","No I won't"}
                highlighted = 2
                Menu()
                if choices[1] == chosenOne then
                    table.remove(newTrashBlock,i)
                end
            end
            trashBlock = newTrashBlock
            resetScreen()
            print(#trashBlock)
            os.sleep(5)
            local file = fs.open("Data/"..trashBlockFile,"w")
            for n=1,#trashBlock,1 do
                file.writeLine(trashBlock[n])
            end
            file.close()

        elseif choices[4] == chosenOne then --Quit
        trashBlock = {}
        load(trashBlockFile,trashBlock)
            if trashBlock[1] == nil then
                local file = fs.open("Data/"..trashBlockFile,"a")
                file.writeLine(1)
                file.close()
            end
            break
        elseif choices[5] == chosenOne then --Tutorial
            while true do
                stringQuestionAsked = "Tutorial"
                choices = {"Type in Code","Place block in front","Banned Blocks","Quit","Tutorial [stop]"}
                highlighted = 1
                Menu()
                if choices[1] == chosenOne then
                    resetScreen()
                    print("Type in Code:")
                    print("You will be able to type in a code id for any block in the game that the turtle is not supposed to mine. You will have to know the Code though. For example minecraft:stone for stone.")
                    os.sleep(8)
                elseif choices[2] == chosenOne then
                    resetScreen()
                    print("Place block in front:")
                    print("First Place the Block you want to add in front of the Turtle then Select this Button. This will add that Block to the list of Blocks that it won't mine")
                    os.sleep(4)
                elseif choices[3] == chosenOne then
                    resetScreen()
                    print("Let's you remove previously added Blocks")
                    os.sleep(2)
                elseif choices[4] == chosenOne then
                    resetScreen()
                    print("Quit:")
                    term.write("Quits the Add new Block Menu")
                    os.sleep(3)
                elseif choices[5] == chosenOne then
                    print("Banned Blocks:")
                    print("Displays a list of all of the Blocks that have been banned by the system")
                    os.sleep(3)
                elseif choices[5] == chosenOne then
                    break
                end
            end
        end

    end
end

if trackingBlock[1] == nil then
    while true do
        stringQuestionAsked = "Add a new Block to Track"
        choices = {"Type in Code","Place block in front","Quit"}
        highlighted = 1
        Menu()
        if choices[1] == chosenOne then
            while true do
                resetScreen()
                print("Type in the code of the Block")
                print("for example minecraft: minecraft:diamond_ore")
                term.write("Code: ")
                local x = read()
                stringQuestionAsked = "Is "..x.." correct?"
                choices = {"Yes it is", "No it isn't"}
                highlighted = 1
                Menu()
                if choices[1] == chosenOne then
                    local add = true
                    load(trackingBlockFile,trackingBlock)
                    for i = 1,#trackingBlock,1 do
                        if trackingBlock[i] == x then
                            add = false
                        end
                    end
                    if add == true then
                        local file = fs.open("Data/"..trackingBlockFile,"a")
                        file.writeLine(x)
                        file.close()
                        resetScreen()
                        print(x.." will be tracked.")
                        os.sleep(2)
                    else
                        resetScreen()
                        term.write("That Block has already been added")
                        os.sleep(2)
                    end
                    break
                end
            end
        elseif choices[2] == chosenOne then
            while true do
                success, data = turtle.inspect()
                if data.name == nil then
                    resetScreen()
                    print("You have to place a Block in front of the turtle before starting this function!")
                    os.sleep(3)
                    break
                end
                stringQuestionAsked = "Is "..data.name.." correct?"
                choices = {"Yes it is", "No it isn't"}
                highlighted = 1
                Menu()
                if choices[1] == chosenOne then
                    local add = true
                    load(trackingBlockFile,trackingBlock)
                    for i = 1,#trackingBlock,1 do
                        if trackingBlock[i] == data.name then
                            add = false
                        end
                    end
                    if add == true then
                        local file = fs.open("Data/"..trackingBlockFile,"a")
                        file.writeLine(data.name)
                        file.close()
                        resetScreen()
                        print(data.name.." will be tracked.")
                        os.sleep(2)
                        break
                    else
                        resetScreen()
                        term.write("That Block has already been added")
                        os.sleep(2)
                        break
                    end
                end
            end
        elseif choices[3] == chosenOne then
        load(trackingBlockFile,trackingBlock)
            if trackingBlock[1] == nil then
                local file = fs.open("Data/"..trackingBlockFile,"a")
                file.writeLine(1)
                file.close()
            end
            break
        end

    end
end
turtleData={}
load(turtleDataFile,turtleData)
resetScreen()
print(table.getn(turtleData))
print(#turtleData)