void main()
{
    object oPC = GetEnteringObject();
    object oDoor = GetNearestObjectByTag("NK_FP_DOOR01", OBJECT_SELF, 1);
    if (GetIsPC(oPC))
    {
        SetLocked(oDoor, 0);
        ActionOpenDoor(oDoor);
        PlaySound("as_sw_stonplate1");
        SendMessageToPC(oPC, "You hear the rumbling sound of a door opening not too far away.");
    }
}