mining

function select(info)
    if info == "ladder" then
        turtle.select(1)
    elseif info == "torch" then
        turtle.select(2)
   elseif info == "cobblestone" then
        turtle.select(4)
    end
end
function place(direction)
    if direction == "front" then
        turtle.place()
    elseif direction == "around" then
        turn("around")
        turtle.place()
    elseif direction == "left" then
        turn("left")
        turtle.place()
    elseif direction == "right" then
        turn("right")
        turtle.place()
    elseif direction == "up" then
        turtle.placeUp()
    elseif direction == "down" then
        turtle.placeDown()
    end
    reStock("cobblestone")
end

function reStock(info)
    note = ""
    if info == "torch" then
        select("torch")
        if turtle.compareTo(3) then
            note = turtle.getItemSpace(turtle.getSelectedSlot())
            turtle.select(3)
            turtle.transferTo(2,64-note)
        end
    elseif info == "cobblestone" then
        index = 4
        fill = false
        while not fill or index <= 16 do
            if turtle.compare(index) then
                note = turtle.getItemCount(turtle.getSelectedSlot())
                turtle.select(index)
                turtle.transferTo(4,64-note)
                select("cobblestone")
            end
            if turtle.getItemSpace(turtle.getSelectedSlot()) == 64 then
                fill = true
            end
            i = i + 1
        end

    end
end

function digging(direction)
    if direction == "up" then
        turtle.digUp()
    elseif direction == "down" then
        turtle.digDown()
    elseif direction == "left" then
        turn("left")
        turtle.dig()
    elseif direction == "around" then
        turn("around")
        turtle.dig()
    elseif direction == "right" then
        turn("right")
        turtle.dig()
    elseif direction == "front" then
        turtle.dig()
    end
end

function move(direction)
    if direction == "down" then
        turtle.down()
    elseif direction == "up" then
        turtle.up()
    elseif direction == "forward" then
        turtle.forward()
    elseif direction == "around" then
        turn("around")
        turtle.forward()
    elseif direction == "right" then
        turn("right")
        turtle.forward()
    elseif direction == "left" then
        turn("left")
        turtle.forward()
    end
    refueling()
end

function turn(direction)
    if direction == "right" then
        turtle.turnRight()
    elseif direction == "left" then
        turtle.turnLeft()
        elseif direction == "around" then
        for i = 1,2 do
            turtle.turnRight()
        end
    end
end

function torch()
    select("torch")
    turn("around")
    turtle.place()
    reStock("torch")
    turn("around")
end

function ladder()
    select("ladder")
    turtle.placeUp()
    reStock("ladder")
end

function refueling()
    if turtle.getFuelLevel() < 100 then
        for i = 1,16 do
            turtle.select(i)
            if turtle.refuel(0) then
                turtle.refuel(1)
            end
        end
    end
end
function checkSides()
    for i = 0,3 do
        turtle.turnRight()
        if i < 3 then
            select("cobblestone")
            place("front")
        end
  end
end
function ladderProgram(currentLayer,desiredLayer)
    print("Beginning the ladderProgram")
    index = currentLayer
    digging("front")
    while index > desiredLayer do
        digging("down")
        checkSides()
        move("down")
        ladder()
    end
end


function branch(length)
    t = 8
    for i = 1,2 do
        for i = 0,length do
            while turtle.detect() do
                digging("front")
                os.sleep(0.5)
            end
            if not turtle.detectDown() then
                select("cobblestone")
                place("down")
            end
            move("front")
            t = t - 1
            if t == 0 then
                torch()
                t = 8
            end
        end
        turn("around")

        for i = 0,length do
            move("front")
        end
    end
    turn("right")
end


function nextBranch(length)
    for i = 1,3 do
        if i == 1 then
            torch()
        end
        for j = 1,3 do
            digging("front")
            move("forward")
            digging("up")
            if not turtle.detectDown() then
                select("cobblestone")
                place("down")
                restock("cobblestone")
            end
        end
        turn("left")
        branch(length)
    end
end

function mining(length)
    print("Beginning the miningProgram")
    while true do
        nextBranch(length)
    end
end

function main()
    print("write one of the things below for what action i should do")
    print("ladder")
    print("mining")
    local input = read()
    print("you entered: ", input)
    if input == "ladder" then
        print("what layer am I on?")
        local input2 = tonumber(read())
        print ("where should I go down to?")
        local input3 = tonumber(read())
        print("gimme: ", input2 - input3 - 1, " of Ladders")
        local input4 = read()
        print ("going down to layer: ", input3, "from: ", input2)
        ladderProgram(input2,input3)
    elseif input == "mining" then
        print("what length should the branch be?")
        local length = read()
        print(" naow gimme torches on position 2 and 3!!")
        print("some fuel like charcoal/coal or lava bucket would be nice")
        print("waiting for the - go - command")
        local input = read()
        if input == "go" then
            mining(length)
        end
    end
end
refueling()
main()