protected override void ServerRead(VRage.Library.Collections.BitStream stream, ulong clientId,uint timestamp)
        {
            base.ServerRead(stream, clientId, timestamp);
            if (stream.ReadBool())
            {
                if (m_grid != null)
                {
                    bool isStatic = stream.ReadBool();
                    if (isStatic == false)
                    {
                        if (stream.ReadBool())
                        {
                            long entityId = stream.ReadInt64();
                            Vector2 rotation = new Vector2();
                            rotation.X = stream.ReadFloat();
                            rotation.Y = stream.ReadFloat();

                            float roll = stream.ReadHalf();

                            Vector3 move = new Vector3();
                            move.X = stream.ReadHalf();
                            move.Y = stream.ReadHalf();
                            move.Z = stream.ReadHalf();

                            MyShipController controller;
                            if (MyEntities.TryGetEntityById<MyShipController>(entityId, out controller))
                            {
                                controller.CacheMoveAndRotate(ref move, ref rotation, roll);
                            }
                        }
                    }
                }
            }
        }
        protected override void ServerRead(VRage.Library.Collections.BitStream stream, ulong clientId,uint timestamp)
        {
            base.ServerRead(stream, clientId, timestamp);
            if (stream.ReadBool())
            {
                if (m_grid != null)
                {
                    bool isStatic = stream.ReadBool();
                    if (isStatic == false)
                    {
                        if (stream.ReadBool())
                        {
                            long entityId = stream.ReadInt64();
                            Vector2 rotation = new Vector2();
                            rotation.X = stream.ReadFloat();
                            rotation.Y = stream.ReadFloat();

                            float roll = stream.ReadHalf();

                            Vector3 move = new Vector3();
                            move.X = stream.ReadHalf();
                            move.Y = stream.ReadHalf();
                            move.Z = stream.ReadHalf();

                            Vector3D gridPos = Vector3D.Zero;
                            MyShipController controller;
                            if (MyEntities.TryGetEntityById<MyShipController>(entityId, out controller))
                            {
                                controller.CacheMoveAndRotate(ref move, ref rotation, roll);
                                gridPos = controller.CubeGrid.PositionComp.GetPosition();
                            }

                            MyGridPhysicsStateGroup.ReadSubGrids(stream, timestamp,true,m_lowPositionOrientation,ref gridPos);
                        }
                    }
                }
            }
        }
        protected override void CustomClientRead(uint timeStamp, ref MyTransformD serverPositionAndOrientation, VRage.Library.Collections.BitStream stream)
        {
            bool hasSupport = stream.ReadBool();

            if (hasSupport)
            {
                long entityId = stream.ReadInt64();

                Vector3D serverSupportPos = stream.ReadVector3D();

                if (!MyEntities.EntityExists(entityId))
                    return;

                MyEntity support = MyEntities.GetEntityById(entityId);

                MyTimeStampValues? clientTransform = m_timestamp.GetTransform(timeStamp);

                Vector3D clientPosition = Vector3D.Zero;
                Vector3D clientSupportPosition = Vector3D.Zero;
                Quaternion rotationComp = Quaternion.Identity;

                if (clientTransform != null)
                {
                    if(m_supportTimeStamp == null)
                    {
                        return;
                    }

                    MyTimeStampValues? supportTransform = m_supportTimeStamp.GetTransform(timeStamp);
                    Vector3D supportPosition = support.PositionComp.WorldMatrix.Translation;

                    if (supportTransform.HasValue)
                    {
                        supportPosition = supportTransform.Value.Transform.Position;

                        if(supportTransform.Value.EntityId != entityId)
                        {
                            return;
                        }
                    }

                    clientPosition = clientTransform.Value.Transform.Position;
                    clientSupportPosition = supportPosition;
                    rotationComp = Quaternion.Inverse(clientTransform.Value.Transform.Rotation);
                }
                else
                {
                    m_character.PositionComp.SetWorldMatrix(serverPositionAndOrientation.TransformMatrix, null, true);
                    return;
                }

                MyTransformD delta = new MyTransformD();

                delta.Rotation = Quaternion.Identity;

                Vector3D characterDelta = serverPositionAndOrientation.Position - clientPosition;
                Vector3D supportDelta = serverSupportPos - clientSupportPosition;

                delta.Position = characterDelta - supportDelta;           
                m_character.CacheMoveDelta(ref delta.Position);
                m_timestamp.UpdateDeltaPosition(timeStamp, ref delta);
            }
            else
            {
                base.CustomClientRead(timeStamp, ref serverPositionAndOrientation, stream);
            }
        }
        protected override void ServerRead(VRage.Library.Collections.BitStream stream, ulong clientId, uint timestamp)
        {       
            base.ServerRead(stream, clientId, timestamp);
            bool clientHasCharacter = stream.ReadBool();
            if (clientHasCharacter)
            {
                MyEntity support;
                bool hasSupport = stream.ReadBool();
                Vector3D supportPosition = Vector3D.Zero;

                if (m_character != null)
                {
                    var physGroup = MyExternalReplicable.FindByObject(m_character).FindStateGroup<MyCharacterPhysicsStateGroup>();
                    if (physGroup != null)
                    {
                        m_support = MySupportHelper.FindSupportForCharacterAABB(m_character);
                        physGroup.SetSupport(MySupportHelper.FindPhysics(m_support));
                    }
                }

                 if (hasSupport)
                 {
                     long supportId = stream.ReadInt64();
                     bool apply = MyEntities.TryGetEntityById(supportId, out support);
                     supportPosition = stream.ReadVector3D();
                 }


                if(m_additionalServerClientData == null)
                {
                    m_additionalServerClientData = new Dictionary<ulong, ClientData>();
                }

                m_additionalServerClientData[clientId] = new ClientData() { HasSupport = hasSupport, SupportPosition = supportPosition };

                Vector3 move = new Vector3();
                move.X = stream.ReadHalf();
                move.Y = stream.ReadHalf();
                move.Z = stream.ReadHalf();

                Vector2 rotate = new Vector2();
                rotate.X = stream.ReadFloat();
                rotate.Y = stream.ReadFloat();

                float roll = stream.ReadFloat();

                MyCharacterMovementEnum MovementState = (MyCharacterMovementEnum)stream.ReadUInt16();
                MyCharacterMovementFlags MovementFlag = (MyCharacterMovementFlags)stream.ReadUInt16();

                bool Jetpack = stream.ReadBool();
                bool Dampeners = stream.ReadBool();
                bool Lights = stream.ReadBool(); // TODO: Remove
                bool Ironsight = stream.ReadBool();
                bool Broadcast = stream.ReadBool(); // TODO: Remove
                bool TargetFromCamera = stream.ReadBool();
                float headXAngle = stream.ReadFloat();
                float headYAngle = stream.ReadFloat();

                if(m_character == null)
                {
                    return;
                }

                if (m_character.IsUsing != null)
                {
                    return;
                }

                var jetpack = m_character.JetpackComp;
                if (jetpack != null)
                {
                    if (Jetpack != jetpack.TurnedOn)
                    {
                        jetpack.TurnOnJetpack(Jetpack, true);
                    }
                    if (Dampeners != jetpack.DampenersTurnedOn)
                    {
                        jetpack.EnableDampeners(Dampeners, false);
                    }
                }

                if (Lights != m_character.LightEnabled)
                {
                    m_character.EnableLights(Lights);
                }

                if (m_character.RadioBroadcaster != null && Broadcast != m_character.RadioBroadcaster.Enabled)
                {
                    m_character.EnableBroadcasting(Broadcast);
                }

                m_character.TargetFromCamera = TargetFromCamera;

                // Set client movement state directly and don't perform other operations
                // that may have side-effects to let server side Character.UpdateAfterSimulation()
                // perform exactly same operations as on client
                m_character.MovementFlags = MovementFlag;
                if (m_character.IsDead == false)
                {
                    m_character.SetCurrentMovementState(MovementState);
                }
                m_character.HeadLocalXAngle = headXAngle;
                m_character.HeadLocalYAngle = headYAngle;
                if (m_commandsApplied == null)
                {
                    m_commandsApplied = new Dictionary<ulong, bool>();
                }

                if (Vector3.IsZero(move, 0.01f) == false || Vector2.IsZero(ref rotate, 0.01f) == false || Math.Abs(roll - 0.0) > 0.01f)
                {            
                    m_commandsApplied[clientId] = true;
                }

                m_character.CacheMove(ref move, ref rotate, ref roll);
            }    
        }
        protected override void CustomClientRead(uint timeStamp, ref MyTimeStampValues serverPositionAndOrientation, VRage.Library.Collections.BitStream stream)
        {
            bool hasSupport = stream.ReadBool();

            if (hasSupport)
            {
                long entityId = stream.ReadInt64();

                Vector3D serverDelta = stream.ReadVector3D();
                Vector3D serverSupportPos = stream.ReadVector3D();

                if (!MyEntities.EntityExists(entityId))
                    return;

                MyEntity support = MyEntities.GetEntityById(entityId);

                MyTimeStampValues? clientTransform = m_timestamp.GetTransform(timeStamp);

                Vector3D clientDelta = Vector3.Zero;
                Vector3D clientVelocity = Vector3D.Zero;
                Quaternion rotationComp = Quaternion.Identity;

                if (clientTransform != null)
                {
                    if(m_supportTimeStamp == null)
                    {
                        return;
                    }
                    MyTimeStampValues? supportTransform = m_supportTimeStamp.GetTransform(timeStamp);

                    Vector3D supportPosition = support.PositionComp.WorldMatrix.Translation;

                    if (supportTransform.HasValue)
                    {
                        supportPosition = supportTransform.Value.Transform.Position;

                        if(supportTransform.Value.EntityId != entityId)
                        {
                            supportPosition = serverSupportPos;
                            return;
                        }
                    }
   
                    clientDelta = supportPosition - clientTransform.Value.Transform.Position;
                    clientVelocity = clientTransform.Value.LinearVelocity;
                    rotationComp = Quaternion.Inverse(clientTransform.Value.Transform.Rotation);
                }
                else
                {
                    m_character.PositionComp.SetWorldMatrix(serverPositionAndOrientation.Transform.TransformMatrix, null, true);
                    return;
                }

                MyTimeStampValues delta = new MyTimeStampValues();
            
                Quaternion.Multiply(ref serverPositionAndOrientation.Transform.Rotation, ref rotationComp, out delta.Transform.Rotation);

                delta.Transform.Position = clientDelta - serverDelta;
                delta.LinearVelocity = serverPositionAndOrientation.LinearVelocity - clientVelocity;

                double deltaL = delta.Transform.Position.Length();

                //if difference is more than 
                if (deltaL < (MyGridPhysics.ShipMaxLinearVelocity() * Sync.RelativeSimulationRatio))
                {
                    delta.Transform.Position = delta.Transform.Position * 0.2;
                    delta.Transform.Rotation = Quaternion.Slerp(delta.Transform.Rotation,Quaternion.Identity,0.2f);
                }

               
                Quaternion normalized = delta.Transform.Rotation;
                normalized.Normalize();
                delta.Transform.Rotation = normalized;
                normalized = serverPositionAndOrientation.Transform.Rotation;
                normalized.Normalize();
                serverPositionAndOrientation.Transform.Rotation = normalized;

                Quaternion clientNormalized = clientTransform.Value.Transform.Rotation;
                clientNormalized.Normalize();

                double eps = 0.001;
                bool hasJetpack = m_character.JetpackComp != null;
                if (hasJetpack && m_character.JetpackComp.TurnedOn && m_character.IsDead == false)
                {
                    if (Math.Abs(Quaternion.Dot(serverPositionAndOrientation.Transform.Rotation, clientNormalized)) < 1 - eps )
                    {
                        Quaternion currentOrientation = Quaternion.CreateFromForwardUp(m_character.WorldMatrix.Forward, m_character.WorldMatrix.Up);
                        Quaternion.Multiply(ref delta.Transform.Rotation, ref currentOrientation, out currentOrientation);

                        MatrixD matrix = MatrixD.CreateFromQuaternion(currentOrientation);
                        MatrixD currentMatrix = m_character.PositionComp.WorldMatrix;
                        currentMatrix.Translation = Vector3D.Zero;

                        if (currentMatrix.EqualsFast(ref matrix) == false)
                        {
                            if (m_character.Physics.CharacterProxy != null)
                            {
                                m_character.Physics.CharacterProxy.Forward = matrix.Forward;
                                m_character.Physics.CharacterProxy.Up = matrix.Up;
                            }
                        }
                    }
                }

                if (deltaL > (MyGridPhysics.ShipMaxLinearVelocity() * Sync.RelativeSimulationRatio))
                {
                 
                    m_character.PositionComp.SetPosition(serverPositionAndOrientation.Transform.Position);
                    m_character.Physics.LinearVelocity = serverPositionAndOrientation.LinearVelocity;
                    m_timestamp.OverwriteServerPosition(timeStamp, ref serverPositionAndOrientation);
                    return;
                   
                }
                else if (deltaL > 5.0f*MyTimestampHelper.POSITION_TOLERANCE)
                {
                    m_character.CacheMoveDelta(ref delta.Transform.Position);
                }

                m_character.Physics.LinearVelocity += delta.LinearVelocity;

                m_timestamp.UpdateDeltaPosition(timeStamp, ref delta);
            }
            else
            {
                base.CustomClientRead(timeStamp, ref serverPositionAndOrientation, stream);
            }
        }
        protected override void ServerRead(VRage.Library.Collections.BitStream stream, ulong clientId, uint timestamp)
        {       
            base.ServerRead(stream, clientId, timestamp);
            bool clientHasCharacter = stream.ReadBool();
            if (clientHasCharacter)
            {
                MyEntity support;
                if (stream.ReadBool())
                {
                    bool apply = MyEntities.TryGetEntityById(stream.ReadInt64(), out support);

                    if (m_character != null)
                    {

                        var physGroup = MyExternalReplicable.FindByObject(m_character).FindStateGroup<MyCharacterPhysicsStateGroup>();
                        if (physGroup != null && apply)
                        {
                            physGroup.SetSupport(MySupportHelper.FindPhysics(support));
                        }
                    }
                }
               

                Vector3 move = new Vector3();
                move.X = stream.ReadHalf();
                move.Y = stream.ReadHalf();
                move.Z = stream.ReadHalf();

                Vector2 rotate = new Vector2();
                rotate.X = stream.ReadFloat();
                rotate.Y = stream.ReadFloat();

                float roll = stream.ReadFloat();

                MyCharacterMovementEnum MovementState = (MyCharacterMovementEnum)stream.ReadUInt16();
                MyCharacterMovementFlags MovementFlag = (MyCharacterMovementFlags)stream.ReadUInt16();

                bool Jetpack = stream.ReadBool();
                bool Dampeners = stream.ReadBool();
                bool Lights = stream.ReadBool(); // TODO: Remove
                bool Ironsight = stream.ReadBool();
                bool Broadcast = stream.ReadBool(); // TODO: Remove
                bool TargetFromCamera = stream.ReadBool();
                float headXAngle = stream.ReadFloat();
                float headYAngle = stream.ReadFloat();

                Quaternion rotation = Quaternion.Identity;

                if (Jetpack == false)
                {
                    rotation = stream.ReadQuaternionNorm();
                }

                if(m_character == null)
                {
                    return;
                }

                if (m_character.IsDead || m_character.IsUsing != null)
                {
                    return;
                }

                var jetpack = m_character.JetpackComp;
                if (jetpack != null)
                {
                    if (Jetpack != jetpack.TurnedOn)
                    {
                        jetpack.TurnOnJetpack(Jetpack, true);
                    }
                    if (Dampeners != jetpack.DampenersTurnedOn)
                    {
                        jetpack.EnableDampeners(Dampeners, false);
                    }
                }
                if (Lights != m_character.LightEnabled)
                {
                    m_character.EnableLights(Lights);
                }

                if (m_character.RadioBroadcaster != null && Broadcast != m_character.RadioBroadcaster.Enabled)
                {
                    m_character.EnableBroadcasting(Broadcast);
                }

                m_character.TargetFromCamera = TargetFromCamera;

                // Set client movement state directly and don't perform other operations
                // that may have side-effects to let server side Character.UpdateAfterSimulation()
                // perform exactly same operations as on client
                m_character.MovementFlags = MovementFlag;
                m_character.SetCurrentMovementState(MovementState);
                m_character.HeadLocalXAngle = headXAngle;
                m_character.HeadLocalYAngle = headYAngle;

               
                m_character.CacheMove(ref move, ref rotate, ref roll);

                if (Jetpack == false)
                {
                    m_character.CacheRotation(ref rotation);
                }


            }    
        }