[Beatle's DLL]WPF & SimConnect

[Adraesh]

Hi everyone,

I have an issue, when I try to remove an AI aircraft. The creation works perfectly I also retrive the ObjectID to interact with this particular object later and try to remove it. But when I click on my button who trigger the AIRemoveObject method, sometimes my AI aicraft is deleted sometimes not. I don't understand why.

Let's see my code :

AI aicraft creation :

private void requestTanker(object sender, RoutedEventArgs e)
        {
            if (gConnected != false && gSimConnect != null)
            {
                if (gTanker == null)
                {
                    gSimConnect.AICreateEnrouteATCAircraft("Boeing 737-800", "N100", 100, Config.APPLICATION_PATH + "tanker/TANKER_FPLAN", 0.0f, false, RequestIDs.REQUEST_TANKER);
                }
            }

OnRecvAddRemove event :

private void SimConnect_OnRecvAddremove(SimConnect sender, SIMCONNECT_RECV_EVENT_OBJECT_ADDREMOVE data)
        {
            switch (data.uEventID)
            {
                case (uint)EventIDs.TANKER_ADDED:
                    if (data.dwData != 0 && gTanker == null)
                    {
                        gTanker = new Tanker(data.dwData);

                        gSimConnect.Text(SIMCONNECT_TEXT_TYPE.PRINT_BLUE, 0, RequestIDs.REQUEST_TEXT, "TANKER ENROUTE");

                        gSimConnect.RequestDataOnSimObject(RequestIDs.REQUEST_TANKER,
                            gTanker.ObjectID,
                            SIMCONNECT_PERIOD.VISUAL_FRAME,
                            SIMCONNECT_DATA_REQUEST_FLAG.CHANGED,
                            gTanker);
                    }
                    break;

                case (uint)EventIDs.TANKER_REMOVED:
                    gTanker = null;
                    break;
            }
        }

AI aicraft Removing :

private void releaseTanker(object sender, RoutedEventArgs e)
        {
            if (gConnected != false && gSimConnect != null)
            {
                if (gTanker != null)
                {
                    gSimConnect.AIRemoveObject(gTanker.ObjectID, RequestIDs.REQUEST_TANKER);
                }
            }
        }

The Tanker class :

using BeatlesBlog.SimConnect;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace VASF
{
    [DataStruct()]
    public class Tanker : System.ComponentModel.INotifyPropertyChanged
    {
        public Double PLANE_LATITUDE;
        public Double PLANE_LONGITUDE;
        public Int32 PLANE_ALTITUDE;
        public Int32 PLANE_ALT_ABOVE_GROUND;
        public Int32 VERTICAL_SPEED;
        public Int32 GROUND_VELOCITY;
        public Boolean SIM_ON_GROUND;

        private UInt32 eObjectID;

        public Tanker(UInt32 eObjectID)
        {
            this.eObjectID = eObjectID;
        }

        public Tanker()
        {
        }

        public UInt32 ObjectID
        {
            get
            {
                return eObjectID;
            }
            set
            {
                eObjectID = value;
            }
        }

        [DataItem("Plane Latitude", "degrees")]
        public Double LatitudeDegrees
        {
            get
            {
                return PLANE_LATITUDE;
            }
            set
            {
                PLANE_LATITUDE = value;
                RaisePropertyChanged("LatitudeDegrees");
            }
        }

        [DataItem("Plane Longitude", "degrees")]
        public Double LongitudeDegrees
        {
            get
            {
                return PLANE_LONGITUDE;
            }
            set
            {
                PLANE_LONGITUDE = value;
                RaisePropertyChanged("LongitudeDegrees");
            }
        }

        [DataItem("Plane Altitude", "feet")]
        public Double AltitudeFeet
        {
            get
            {
                return PLANE_ALTITUDE;
            }
            set
            {
                PLANE_ALTITUDE = (Int32)Math.Round(value);
                RaisePropertyChanged("AltitudeFeet");
            }
        }

        [DataItem("Plane Alt Above Ground", "feet")]
        public Double AltitudeAboveGroundFeet
        {
            get
            {
                return PLANE_ALT_ABOVE_GROUND;
            }
            set
            {
                PLANE_ALT_ABOVE_GROUND = (Int32)Math.Round(value);
                RaisePropertyChanged("AltitudeAboveGroundFeet");
            }
        }

        [DataItem("Vertical Speed", "feet")]
        public Double VerticalSpeedFeet
        {
            get
            {
                return VERTICAL_SPEED;
            }
            set
            {
                VERTICAL_SPEED = (Int32)Math.Round(value);
                RaisePropertyChanged("VerticalSpeedFeet");
            }
        }

        [DataItem("Ground Velocity", "knots")]
        public Double GroundVelocityKnots
        {
            get
            {
                return GROUND_VELOCITY;
            }
            set
            {
                GROUND_VELOCITY = (Int32)Math.Round(value);
                RaisePropertyChanged("GroundVelocityKnots");
            }
        }

        [DataItem("Sim On Ground", "bool")]
        public Boolean SimOnGroundBool
        {
            get
            {
                return SIM_ON_GROUND;
            }
            set
            {
                SIM_ON_GROUND = value;
                RaisePropertyChanged("SimOnGroundBool");
            }
        }

        #region INotifyPropertyChanged Members

        public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;

        private void RaisePropertyChanged(string propertyName)
        {
            if (this.PropertyChanged != null)
            {
                this.PropertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(propertyName));
            }
        }

        #endregion
    }
}

Thank you in advance and sorry for my bad english.

 

[Adraesh]

Hello,

I found a solution and it works perfectly. The only issue I have is in multiplayer mode.

In fact, the AI trafic is well deleted for me but for others players they still see it.

Have you some idea ?

Thank you.

 

[ollyau]

To help others, can you post your solution?

As far as I know, you can't delete AI from other users in multiplayer. All SimObjects are instantiated locally. Multiplayer is just a special case where FSX will automatically synchronize airplane and helicopter objects between clients.

 

[Adraesh]

Hello ollyau,

I will of course post my solution tonight after work.

For the delete action, I don't speak about AI created by other client, but I speak about one AI create by my client and when I delete it the other players (in multiplayer) still see this AI.

Thank you.

 

[ollyau]

Sorry, I suppose my sentence was ambiguous.

I meant to confirm the behavior you found: that the deletion of AI from the local computer doesn't propagate to other clients in multiplayer.

 

[Adraesh]

There is a solution to avoid this restriction ? Maybe there is a trick ? Not necessarily using SimConnect API but another thing I don't know ?

And using this method : http://www.fsdeveloper.com/forum/showpost.php?p=76378&postcount=7 will I get the same issue ? (I mean deleted AI Aircraft will always display for other users ?)

Thank you for you answer.