MiningTool

function Excavate(length, width)
    turnRight = false
    while(GetBlockUnderneath)
        turtle.digDown()
        turtle.down()
        turtle.digDown()
        turtle.down()
        for j=1,width do
            for i=1,length do
                turtle.digDown()
                turtle.digUp()
                turtle.dig()
                turtle.forward()
            end
            if(turnRight) then
                turtle.digDown()
                turtle.digUp()
                turtle.turnRight()
                turtle.dig()
                turtle.forward()
                turtle.turnRight()
                turnRight = false
            else
                turtle.digDown()
                turtle.digUp()
                turtle.turnLeft()
                turtle.dig()
                turtle.forward()
                turtle.turnLeft()
                turnRight = true
            end
        end
    end
end

function GetBlockUnderneath()
    if(turtle.inspectDown() == 7) then
        return false
    else
        return true
    end
end

function Tunnel()
    while(true) do
        TunnelLeftToRight()
        TunnelRightToLeft()
    end
end

function TunnelRightToLeft()
    turtle.dig()
    turtle.forward()
    turtle.digUp()
    turtle.digDown()
    turtle.turnLeft()
    turtle.dig()
    turtle.forward()
    turtle.digUp()
    turtle.digDown()
    turtle.dig()
    turtle.forward()
    turtle.digUp()
    turtle.digDown()
    turtle.turnRight()
end

function TunnelLeftToRight()
    turtle.dig()
    turtle.forward()
    turtle.digUp()
    turtle.digDown()
    turtle.turnRight()
    turtle.dig()
    turtle.forward()
    turtle.digUp()
    turtle.digDown()
    turtle.dig()
    turtle.forward()
    turtle.digUp()
    turtle.digDown()
    turtle.turnLeft()
end


function Refuel()
    for i = 1, 16 do
        turtle.select(i)
            turtle.refuel()
    end
end


function Menu()
    Refuel()
    print("Mining by Keokix_")
    print("Select mode:")
    print("1: Strip mining, 3x1 and every 3rd block, 3 in each side")
    print("2: Excavate - Are is adjustable when selecting this")
    print("3: Tunnel - 3x3 Tunnel")

    print("Please select a mode:")

    input = io.read()

    if(input == "1") then
        StripMining()
    elseif(input == "2") then
        print("Please define the length in front direction: ")
        length = io.read()
        print("Please define the width (going in right direction):")
        width = io.read()
        Excavate(length, width)
    elseif(input == "3") then
        Tunnel()
    else
        print("Invalid input, Try again!")
        Menu()
    end
end

Menu()