Testje

local Pos = {...}
masterServer = 0
dnsServer = 1
ID = os.getID()
label = os.getLabel
Pos.X, Pos.Y, Pos.Z = gps.locate()
if turtle then
    turtle.forward()
    X, Y, Z = gps.locate()
    if X>Pos.X then
        Pos.O = 1
    elseif X<Pos.X then
        Pos.O = 3
    elseif Z>Pos.Z then
        Pos.O = 2
    elseif Z<Pos.Z then
        Pos.O = 0
    end
    turtle.back()
end