/// <summary>
        /// Receive message from other agents
        /// </summary>
        /// <param name="from">Transmitter agent</param>
        /// <param name="target">Receiver agent type</param>
        /// <param name="msgText">Message text in string</param>
        /// <param name="info">Additional parameter</param>
        protected override void OnMessageReceived(object from, Type target, string msgText, params object[] info)
        {
            switch (msgText)
            {
            case "RequestStandBy":
                position = AMBULANCE_POSITION.StagingArea;
                break;

            case "DispatchAmbulance":     // Ambulance dispatch request from staging area to MCI field
                position = AMBULANCE_POSITION.Field;
                // Go to MCI field
                SendMessage(typeof(EMSVehicle), "FieldArrivalReport");
                break;

            case "RequestPatientTransfer":
                // Transport patient
                Patient p = (Patient)info[0];
                SendMessage(typeof(Hospital), "DispatchPatient", p);
                SendMessage(typeof(EMSVehicle), "TransferComplete");
                position = AMBULANCE_POSITION.StagingArea;
                break;

            default:
                break;
            }
        }
 /// <summary>
 /// Receive message from other agents
 /// </summary>
 /// <param name="from">Transmitter agent</param>
 /// <param name="target">Receiver agent type</param>
 /// <param name="msgText">Message text in string</param>
 /// <param name="info">Additional parameter</param>
 protected override void OnMessageReceived(object from, Type target, string msgText, params object[] info)
 {
     switch (msgText)
     {
         case "RequestStandBy":
             position = AMBULANCE_POSITION.StagingArea;
             break;
         case "DispatchAmbulance": // Ambulance dispatch request from staging area to MCI field
             position = AMBULANCE_POSITION.Field;
             // Go to MCI field
             SendMessage(typeof(EMSVehicle), "FieldArrivalReport");
             break;
         case "RequestPatientTransfer":
             // Transport patient
             Patient p = (Patient)info[0];
             SendMessage(typeof(Hospital), "DispatchPatient", p);
             SendMessage(typeof(EMSVehicle), "TransferComplete");
             position = AMBULANCE_POSITION.StagingArea;
             break;
         default:
             break;
     }
 }