checkDirection

local currentDirection = nil

function getCurrentDirection()
    local blockStatus, blockData = turtle.inspect()
    if (blockStatus == false)
    then
        local tp1X, tp1Y, tp1Z = gps.locate()
        turtle.forward()
        local tp2X, tp2Y, tp2Z = gps.locate()
        turtle.back()

        if (tp1X == tp2X)
        then
            if (tp1Z < tp2Z)
            then
                currentDirection = "South"
            else
                currentDirection = "North"
            end
        else
            if (tp1X < tp2X)
            then
                currentDirection = "East"
            else
                currentDirection = "West"
            end
        end
    else
        turnLeft()
        getCurrentDirection()
    end
end

getCurrentDirection()
print("Direction: "..currentDirection)