1 files changed, 72 insertions, 11 deletions

diff --git a/OpenSim/Region/Framework/Scenes/ScenePresence.cs b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
index c553ca0..d0c20ff 100644
--- a/OpenSim/Region/Framework/Scenes/ScenePresence.cs
+++ b/OpenSim/Region/Framework/Scenes/ScenePresence.cs
@@ -1660,16 +1660,27 @@ namespace OpenSim.Region.Framework.Scenes
                 }
                                 // part.GetWorldRotation()   is the rotation of the object being sat on
                                 // Rotation  is the sittiing Av's rotation
-                                
-                                Quaternion wr = Quaternion.Inverse(Quaternion.Inverse(Rotation) * Quaternion.Inverse(part.GetWorldRotation())); // world or. of the av
-                                Vector3 so = new Vector3(1.0f, 0f, 0f) * wr;            // 1M infront of av
-                                Vector3 wso = so + part.GetWorldPosition() + ( m_pos * part.GetWorldRotation());                        // + av sit offset!
+
+                        Quaternion partRot;
+                    if (part.LinkNum == 1)
+                    {                           // Root prim of linkset
+                        partRot = part.ParentGroup.RootPart.RotationOffset;
+                    }
+                    else
+                    {                           // single or child prim
+                        partRot = part.GetWorldRotation();
+                    }                       
+                    Quaternion partIRot = Quaternion.Inverse(partRot);
+
+                                Quaternion avatarRot = Quaternion.Inverse(Quaternion.Inverse(Rotation) * partIRot); // world or. of the av
+                                Vector3 avStandUp = new Vector3(1.0f, 0f, 0f) * avatarRot;              // 1M infront of av
+                                Vector3 avWorldStandUp = avStandUp + part.GetWorldPosition() + ( m_pos * partRot);                      // + av sit offset!
 
                 if (m_physicsActor == null)
                 {
                     AddToPhysicalScene(false);
                 }
-                        AbsolutePosition = wso;                  //KF: Fix stand up.
+                        AbsolutePosition = avWorldStandUp;                       //KF: Fix stand up.
                 m_parentPosition = Vector3.Zero;
                                 m_parentID = 0;
                 part.IsOccupied = false;
@@ -1752,8 +1763,17 @@ namespace OpenSim.Region.Framework.Scenes
             Quaternion avSitOrientation = part.SitTargetOrientation;
 
             bool SitTargetisSet = (Vector3.Zero != avSitOffSet);                //NB Latest SL Spec shows Sit Rotation setting is ignored.
-                Quaternion partIRot = Quaternion.Inverse(part.GetWorldRotation());
-                       
+   //           Quaternion partIRot = Quaternion.Inverse(part.GetWorldRotation());
+                Quaternion partRot;
+            if (part.LinkNum == 1)
+            {                           // Root prim of linkset
+                partRot = part.ParentGroup.RootPart.RotationOffset;
+            }
+            else
+            {                           // single or child prim
+                partRot = part.GetWorldRotation();
+            }                       
+                Quaternion partIRot = Quaternion.Inverse(partRot);
 //Console.WriteLine("SendSitResponse offset=" + offset + "  Occup=" + part.IsOccupied + "    TargSet=" + SitTargetisSet);
                         // Sit analysis rewritten by KF 091125 
             if (SitTargetisSet)                 // scipted sit
@@ -1800,6 +1820,8 @@ namespace OpenSim.Region.Framework.Scenes
             cameraAtOffset = part.GetCameraAtOffset();
             cameraEyeOffset = part.GetCameraEyeOffset();
             forceMouselook = part.GetForceMouselook();
+            if(cameraAtOffset == Vector3.Zero) cameraAtOffset =  new Vector3(0f, 0f, 0.1f); // 
+            if(cameraEyeOffset == Vector3.Zero) cameraEyeOffset =  new Vector3(0f, 0f, 0.1f); // 
 
             if (m_physicsActor != null)
             {
@@ -1823,7 +1845,29 @@ namespace OpenSim.Region.Framework.Scenes
             }
             else return;    // physactor is null! 
 
-                        Vector3 offsetr = offset * partIRot;            
+                        Vector3 offsetr; // = offset * partIRot;        
+                        // KF: In a linkset, offsetr needs to be relative to the group root!  091208    
+        //              offsetr = (part.OffsetPosition * Quaternion.Inverse(part.ParentGroup.RootPart.RotationOffset)) + (offset * partIRot);
+            if (part.LinkNum < 2)
+            {                           // Single, or Root prim of linkset, target is ClickOffset * RootRot
+                offsetr = offset * partIRot;
+            }
+            else
+            {   // Child prim, offset is (ChildOffset * RootRot) + (ClickOffset * ChildRot)
+                offsetr = //(part.OffsetPosition * Quaternion.Inverse(part.ParentGroup.RootPart.RotationOffset)) +      
+                                        (offset * partRot);
+            }
+
+Console.WriteLine(" ");
+Console.WriteLine("link number ={0}", part.LinkNum);            
+Console.WriteLine("Prim offset ={0}", part.OffsetPosition );                    
+Console.WriteLine("Root Rotate ={0}", part.ParentGroup.RootPart.RotationOffset);
+Console.WriteLine("Click offst ={0}", offset);
+Console.WriteLine("Prim Rotate ={0}", part.GetWorldRotation());
+Console.WriteLine("offsetr     ={0}", offsetr);
+Console.WriteLine("Camera At   ={0}", cameraAtOffset);
+Console.WriteLine("Camera Eye  ={0}", cameraEyeOffset);
+
             ControllingClient.SendSitResponse(part.UUID, offsetr, sitOrientation, autopilot, cameraAtOffset, cameraEyeOffset, forceMouselook);
             m_requestedSitTargetUUID = part.UUID;               //KF: Correct autopilot target
             // This calls HandleAgentSit twice, once from here, and the client calls
@@ -2142,13 +2186,20 @@ namespace OpenSim.Region.Framework.Scenes
                     }
                     else
                     {
-//Console.WriteLine("NON Scripted Sit");
                                                 // if m_avUnscriptedSitPos is zero then Av sits above center
                                                 // Else Av sits at m_avUnscriptedSitPos                                         
                                                 
                         // Non-scripted sit by Kitto Flora 21Nov09
                         // Calculate angle of line from prim to Av
-                        Quaternion partIRot = Quaternion.Inverse(part.GetWorldRotation());
+                        Quaternion partIRot;
+                        if (part.LinkNum == 1)
+                        {                               // Root prim of linkset
+                                partIRot = Quaternion.Inverse(part.ParentGroup.RootPart.RotationOffset);
+                        }
+                        else
+                        {                               // single or child prim
+                                partIRot = Quaternion.Inverse(part.GetWorldRotation());
+                        }
                         Vector3 sitTargetPos= part.AbsolutePosition + m_avUnscriptedSitPos;
                                 float y_diff = (m_avInitialPos.Y - sitTargetPos.Y);
                         float x_diff = ( m_avInitialPos.X - sitTargetPos.X);
@@ -2203,11 +2254,21 @@ namespace OpenSim.Region.Framework.Scenes
                                 // collisionPoint = spot on prim where we want to sit
                                 // collisionPoint.Z = global sit surface height
                                 SceneObjectPart part = m_scene.GetSceneObjectPart(localid);
-                                Quaternion partIRot = Quaternion.Inverse(part.GetWorldRotation());
+                                Quaternion partIRot;
+                    if (part.LinkNum == 1)
+                {                               // Root prim of linkset
+                    partIRot = Quaternion.Inverse(part.ParentGroup.RootPart.RotationOffset);
+                }
+                else
+                {                               // single or child prim
+                    partIRot = Quaternion.Inverse(part.GetWorldRotation());
+                }                       
                                 float offZ = collisionPoint.Z - m_initialSitTarget.Z;
                                 Vector3 offset = new Vector3(0.0f, 0.0f, offZ) * partIRot; // Altitude correction
 //Console.WriteLine("sitPoint={0},  offset={1}",  sitPoint,  offset);
                                 m_pos += offset;
+  ControllingClient.SendClearFollowCamProperties(part.UUID);
+                                
                         }
                 } // End SitAltitudeCallback  KF.