static bool Prefix(int idx, MechDef mech, bool active, bool forcePlacement, bool displayMechPopup,
                           string mechAddedHeader, SimGameState __instance)
        {
            Logger.Debug("AddMech Prefix Patch Installed");
            if (displayMechPopup)
            {
                if (string.IsNullOrEmpty(mech.GUID))
                {
                    mech.SetGuid(__instance.GenerateSimGameUID());
                }

                var companyStats = Traverse.Create(__instance).Field("companyStats").GetValue <StatCollection>();
                companyStats.ModifyStat <int>("Mission", 0, "COMPANY_MechsAdded", StatCollection.StatOperation.Int_Add, 1, -1, true);
                if (string.IsNullOrEmpty(mechAddedHeader))
                {
                    mechAddedHeader = "'Mech Chassis Complete";
                    int num = (int)WwiseManager.PostEvent <AudioEventList_ui>(AudioEventList_ui.ui_sim_popup_newChassis, WwiseManager.GlobalAudioObject, (AkCallbackManager.EventCallback)null, (object)null);
                }

                mechAddedHeader += ": {0}";

                __instance.GetInterruptQueue().QueuePauseNotification(
                    string.Format(mechAddedHeader, (object)mech.Description.UIName), mech.Chassis.YangsThoughts,
                    __instance.GetCrewPortrait(SimGameCrew.Crew_Yang), "notification_mechreadycomplete", (Action)(() =>
                {
                    int firstFreeMechBay = __instance.GetFirstFreeMechBay();
                    if (firstFreeMechBay >= 0)
                    {
                        __instance.ActiveMechs[firstFreeMechBay] = mech;
                        SortMechLabMechs(__instance.GetMaxActiveMechs(), __instance.ActiveMechs,
                                         __instance.ReadyingMechs);
                    }
                    else
                    {
                        __instance.CreateMechPlacementPopup(mech);
                    }
                }), "Continue", (Action)null, (string)null);
                return(false);
            }

            return(true);
        }