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       int LastAnnounce = 0;
                if (CityTimerMinutesGone == 60)
                {
                    SendAIMessage("One hour have passed since shield was put down by " + CityShieldWho + ". It can now be put up again.", 3);
                    Bot.SendPrivateMessage(CityShieldWho, "Alien Invasion »» One hour have passed since you turned down cloak, remember to activate it again.");
                    LastAnnounce = CityTimerMinutesGone;
                }
                else
                {
                    if ((LastAnnounce + 60) == CityTimerMinutesGone)
                    {
                        SendAIMessage("More then one hour have passed since shield was put down by " + CityShieldWho + ". It can now be put up again.", 3);
                        LastAnnounce = CityTimerMinutesGone;
                    }
                }