OpenSim.Region.Framework.Scenes.ScenePresence.InTransit C# (CSharp) Method

        public void InTransit()
        {
            m_inTransit = true;

            if ((m_physicsActor != null) && m_physicsActor.Flying)
                m_AgentControlFlags |= AgentManager.ControlFlags.AGENT_CONTROL_FLY;
            else if ((m_AgentControlFlags & AgentManager.ControlFlags.AGENT_CONTROL_FLY) != 0)
                m_AgentControlFlags &= ~AgentManager.ControlFlags.AGENT_CONTROL_FLY;
        }

        public bool Cross(ScenePresence agent, bool isFlying)
        {
            Scene scene = agent.Scene;
            Vector3 pos = agent.AbsolutePosition;
            Vector3 newpos = new Vector3(pos.X, pos.Y, pos.Z);
            uint neighbourx = scene.RegionInfo.RegionLocX;
            uint neighboury = scene.RegionInfo.RegionLocY;
            const float boundaryDistance = 1.7f;
            Vector3 northCross = new Vector3(0, boundaryDistance, 0);
            Vector3 southCross = new Vector3(0, -1 * boundaryDistance, 0);
            Vector3 eastCross = new Vector3(boundaryDistance, 0, 0);
            Vector3 westCross = new Vector3(-1 * boundaryDistance, 0, 0);

            // distance to edge that will trigger crossing


            // distance into new region to place avatar
            const float enterDistance = 0.5f;

            if (scene.TestBorderCross(pos + westCross, Cardinals.W))
            {
                if (scene.TestBorderCross(pos + northCross, Cardinals.N))
                {
                    Border b = scene.GetCrossedBorder(pos + northCross, Cardinals.N);
                    neighboury += (uint)(int)(b.BorderLine.Z / (int)Constants.RegionSize);
                }
                else if (scene.TestBorderCross(pos + southCross, Cardinals.S))
                {
                    Border b = scene.GetCrossedBorder(pos + southCross, Cardinals.S);
                    if (b.TriggerRegionX == 0 && b.TriggerRegionY == 0)
                    {
                        neighboury--;
                        newpos.Y = Constants.RegionSize - enterDistance;
                    }
                    else
                    {
                        agent.InTransit();

                        neighboury = b.TriggerRegionY;
                        neighbourx = b.TriggerRegionX;

                        Vector3 newposition = pos;
                        newposition.X += (scene.RegionInfo.RegionLocX - neighbourx) * Constants.RegionSize;
                        newposition.Y += (scene.RegionInfo.RegionLocY - neighboury) * Constants.RegionSize;
                        agent.ControllingClient.SendAgentAlertMessage(
                            String.Format("Moving you to region {0},{1}", neighbourx, neighboury), false);
                        InformClientToInitateTeleportToLocation(agent, neighbourx, neighboury, newposition, scene);
                        return true;
                    }
                }

                Border ba = scene.GetCrossedBorder(pos + westCross, Cardinals.W);
                if (ba.TriggerRegionX == 0 && ba.TriggerRegionY == 0)
                {
                    neighbourx--;
                    newpos.X = Constants.RegionSize - enterDistance;
                }
                else
                {
                    agent.InTransit();

                    neighboury = ba.TriggerRegionY;
                    neighbourx = ba.TriggerRegionX;


                    Vector3 newposition = pos;
                    newposition.X += (scene.RegionInfo.RegionLocX - neighbourx) * Constants.RegionSize;
                    newposition.Y += (scene.RegionInfo.RegionLocY - neighboury) * Constants.RegionSize;
                    agent.ControllingClient.SendAgentAlertMessage(
                            String.Format("Moving you to region {0},{1}", neighbourx, neighboury), false);
                    InformClientToInitateTeleportToLocation(agent, neighbourx, neighboury, newposition, scene);


                    return true;
                }

            }
            else if (scene.TestBorderCross(pos + eastCross, Cardinals.E))
            {
                Border b = scene.GetCrossedBorder(pos + eastCross, Cardinals.E);
                neighbourx += (uint)(int)(b.BorderLine.Z / (int)Constants.RegionSize);
                newpos.X = enterDistance;

                if (scene.TestBorderCross(pos + southCross, Cardinals.S))
                {
                    Border ba = scene.GetCrossedBorder(pos + southCross, Cardinals.S);
                    if (ba.TriggerRegionX == 0 && ba.TriggerRegionY == 0)
                    {
                        neighboury--;
                        newpos.Y = Constants.RegionSize - enterDistance;
                    }
                    else
                    {
                        agent.InTransit();

                        neighboury = ba.TriggerRegionY;
                        neighbourx = ba.TriggerRegionX;
                        Vector3 newposition = pos;
                        newposition.X += (scene.RegionInfo.RegionLocX - neighbourx) * Constants.RegionSize;
                        newposition.Y += (scene.RegionInfo.RegionLocY - neighboury) * Constants.RegionSize;
                        agent.ControllingClient.SendAgentAlertMessage(
                            String.Format("Moving you to region {0},{1}", neighbourx, neighboury), false);
                        InformClientToInitateTeleportToLocation(agent, neighbourx, neighboury, newposition, scene);
                        return true;
                    }
                }
                else if (scene.TestBorderCross(pos + northCross, Cardinals.N))
                {
                    Border c = scene.GetCrossedBorder(pos + northCross, Cardinals.N);
                    neighboury += (uint)(int)(c.BorderLine.Z / (int)Constants.RegionSize);
                    newpos.Y = enterDistance;
                }


            }
            else if (scene.TestBorderCross(pos + southCross, Cardinals.S))
            {
                Border b = scene.GetCrossedBorder(pos + southCross, Cardinals.S);
                if (b.TriggerRegionX == 0 && b.TriggerRegionY == 0)
                {
                    neighboury--;
                    newpos.Y = Constants.RegionSize - enterDistance;
                }
                else
                {
                    agent.InTransit();

                    neighboury = b.TriggerRegionY;
                    neighbourx = b.TriggerRegionX;
                    Vector3 newposition = pos;
                    newposition.X += (scene.RegionInfo.RegionLocX - neighbourx) * Constants.RegionSize;
                    newposition.Y += (scene.RegionInfo.RegionLocY - neighboury) * Constants.RegionSize;
                    agent.ControllingClient.SendAgentAlertMessage(
                            String.Format("Moving you to region {0},{1}", neighbourx, neighboury), false);
                    InformClientToInitateTeleportToLocation(agent, neighbourx, neighboury, newposition, scene);
                    return true;
                }
            }
            else if (scene.TestBorderCross(pos + northCross, Cardinals.N))
            {

                Border b = scene.GetCrossedBorder(pos + northCross, Cardinals.N);
                neighboury += (uint)(int)(b.BorderLine.Z / (int)Constants.RegionSize);
                newpos.Y = enterDistance;
            }

            /*

            if (pos.X < boundaryDistance) //West
            {
                neighbourx--;
                newpos.X = Constants.RegionSize - enterDistance;
            }
            else if (pos.X > Constants.RegionSize - boundaryDistance) // East
            {
                neighbourx++;
                newpos.X = enterDistance;
            }

            if (pos.Y < boundaryDistance) // South
            {
                neighboury--;
                newpos.Y = Constants.RegionSize - enterDistance;
            }
            else if (pos.Y > Constants.RegionSize - boundaryDistance) // North
            {
                neighboury++;
                newpos.Y = enterDistance;
            }
            */

            ulong neighbourHandle = Utils.UIntsToLong((uint)(neighbourx * Constants.RegionSize), (uint)(neighboury * Constants.RegionSize));

            int x = (int)(neighbourx * Constants.RegionSize), y = (int)(neighboury * Constants.RegionSize);

            ExpiringCache<ulong, DateTime> r;
            DateTime banUntil;

            if (m_bannedRegions.TryGetValue(agent.ControllingClient.AgentId, out r))
            {
                if (r.TryGetValue(neighbourHandle, out banUntil))
                {
                    if (DateTime.Now < banUntil)
                        return false;
                    r.Remove(neighbourHandle);
                }
            }
            else
            {
                r = null;
            }

            GridRegion neighbourRegion = scene.GridService.GetRegionByPosition(scene.RegionInfo.ScopeID, (int)x, (int)y);

            string reason;
            string version;
            if (!scene.SimulationService.QueryAccess(neighbourRegion, agent.ControllingClient.AgentId, newpos, out version, out reason))
            {
                agent.ControllingClient.SendAlertMessage("Cannot region cross into banned parcel");
                if (r == null)
                {
                    r = new ExpiringCache<ulong, DateTime>();
                    r.Add(neighbourHandle, DateTime.Now + TimeSpan.FromSeconds(15), TimeSpan.FromSeconds(15));

                    m_bannedRegions.Add(agent.ControllingClient.AgentId, r, TimeSpan.FromSeconds(45));
                }
                else
                {
                    r.Add(neighbourHandle, DateTime.Now + TimeSpan.FromSeconds(15), TimeSpan.FromSeconds(15));
                }
                return false;
            }

            agent.InTransit();

            CrossAgentToNewRegionDelegate d = CrossAgentToNewRegionAsync;
            d.BeginInvoke(agent, newpos, neighbourx, neighboury, neighbourRegion, isFlying, version, CrossAgentToNewRegionCompleted, d);

            return true;
        }