1 files changed, 45 insertions, 20 deletions

diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
index fff807a..ab7abbe 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
@@ -493,8 +493,8 @@ namespace OpenSim.Region.Framework.Scenes
 
         public Vector3 GroupScale()
         {
-            Vector3 minScale = new Vector3(Constants.RegionSize,Constants.RegionSize,Constants.RegionSize);
-            Vector3 maxScale = new Vector3(0f,0f,0f);
+            Vector3 minScale = new Vector3(Constants.RegionSize, Constants.RegionSize, Constants.RegionSize);
+            Vector3 maxScale = Vector3.Zero;
             Vector3 finalScale = new Vector3(0.5f, 0.5f, 0.5f);
 
             lock (m_parts)
@@ -577,7 +577,6 @@ namespace OpenSim.Region.Framework.Scenes
             {
                 foreach (SceneObjectPart part in m_parts.Values)
                 {
-
                     Vector3 worldPos = part.GetWorldPosition();
                     Vector3 offset = worldPos - AbsolutePosition;
                     Quaternion worldRot;
@@ -1182,8 +1181,8 @@ namespace OpenSim.Region.Framework.Scenes
                 {
 //                    part.Inventory.RemoveScriptInstances();
 
-                    List<ScenePresence> avatars = Scene.GetScenePresences();
-                    for (int i = 0; i < avatars.Count; i++)
+                    ScenePresence[] avatars = Scene.GetScenePresences();
+                    for (int i = 0; i < avatars.Length; i++)
                     {
                         if (avatars[i].ParentID == LocalId)
                         {
@@ -1335,7 +1334,7 @@ namespace OpenSim.Region.Framework.Scenes
                                 (parcel.LandData.GroupID != GroupID ||
                                 parcel.LandData.GroupID == UUID.Zero))
                         {
-                            if ((DateTime.Now - RootPart.Rezzed).TotalMinutes >
+                            if ((DateTime.UtcNow - RootPart.Rezzed).TotalMinutes >
                                     parcel.LandData.OtherCleanTime)
                             {
                                 DetachFromBackup();
@@ -1480,8 +1479,8 @@ namespace OpenSim.Region.Framework.Scenes
                 dupe.RootPart.PhysActor = m_scene.PhysicsScene.AddPrimShape(
                     dupe.RootPart.Name,
                     pbs,
-                    new PhysicsVector(dupe.RootPart.AbsolutePosition.X, dupe.RootPart.AbsolutePosition.Y, dupe.RootPart.AbsolutePosition.Z),
-                    new PhysicsVector(dupe.RootPart.Scale.X, dupe.RootPart.Scale.Y, dupe.RootPart.Scale.Z),
+                    dupe.RootPart.AbsolutePosition,
+                    dupe.RootPart.Scale,
                     dupe.RootPart.RotationOffset,
                     dupe.RootPart.PhysActor.IsPhysical);
 
@@ -1596,7 +1595,7 @@ namespace OpenSim.Region.Framework.Scenes
             */
         }
 
-        public void applyImpulse(PhysicsVector impulse)
+        public void applyImpulse(Vector3 impulse)
         {
             // We check if rootpart is null here because scripts don't delete if you delete the host.
             // This means that unfortunately, we can pass a null physics actor to Simulate!
@@ -1623,7 +1622,7 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
-        public void applyAngularImpulse(PhysicsVector impulse)
+        public void applyAngularImpulse(Vector3 impulse)
         {
             // We check if rootpart is null here because scripts don't delete if you delete the host.
             // This means that unfortunately, we can pass a null physics actor to Simulate!
@@ -1642,7 +1641,7 @@ namespace OpenSim.Region.Framework.Scenes
             }
         }
 
-        public void setAngularImpulse(PhysicsVector impulse)
+        public void setAngularImpulse(Vector3 impulse)
         {
             // We check if rootpart is null here because scripts don't delete if you delete the host.
             // This means that unfortunately, we can pass a null physics actor to Simulate!
@@ -1673,8 +1672,8 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     if (!IsAttachment)
                     {
-                        PhysicsVector torque = rootpart.PhysActor.Torque;
-                        return new Vector3(torque.X, torque.Y, torque.Z);
+                        Vector3 torque = rootpart.PhysActor.Torque;
+                        return torque;
                     }
                 }
             }
@@ -1707,7 +1706,7 @@ namespace OpenSim.Region.Framework.Scenes
                 {
                     if (rootpart.PhysActor != null)
                     {
-                        rootpart.PhysActor.PIDTarget = new PhysicsVector(target.X, target.Y, target.Z);
+                        rootpart.PhysActor.PIDTarget = target;
                         rootpart.PhysActor.PIDTau = tau;
                         rootpart.PhysActor.PIDActive = true;
                     }
@@ -2414,7 +2413,7 @@ namespace OpenSim.Region.Framework.Scenes
                     if (m_rootPart.PhysActor.IsPhysical)
                     {
                         Vector3 llmoveforce = pos - AbsolutePosition;
-                        PhysicsVector grabforce = new PhysicsVector(llmoveforce.X, llmoveforce.Y, llmoveforce.Z);
+                        Vector3 grabforce = llmoveforce;
                         grabforce = (grabforce / 10) * m_rootPart.PhysActor.Mass;
                         m_rootPart.PhysActor.AddForce(grabforce,true);
                         m_scene.PhysicsScene.AddPhysicsActorTaint(m_rootPart.PhysActor);
@@ -2519,7 +2518,7 @@ namespace OpenSim.Region.Framework.Scenes
                           rotationAxis.Normalize();
 
                           //m_log.Error("SCENE OBJECT GROUP]: rotation axis is " + rotationAxis);
-                          PhysicsVector spinforce = new PhysicsVector(rotationAxis.X, rotationAxis.Y, rotationAxis.Z);
+                          Vector3 spinforce = new Vector3(rotationAxis.X, rotationAxis.Y, rotationAxis.Z);
                           spinforce = (spinforce/8) * m_rootPart.PhysActor.Mass; // 8 is an arbitrary torque scaling factor
                           m_rootPart.PhysActor.AddAngularForce(spinforce,true);
                           m_scene.PhysicsScene.AddPhysicsActorTaint(m_rootPart.PhysActor);
@@ -2746,8 +2745,7 @@ namespace OpenSim.Region.Framework.Scenes
                         if (scale.Z > m_scene.m_maxPhys)
                             scale.Z = m_scene.m_maxPhys;
                     }
-                    part.PhysActor.Size =
-                        new PhysicsVector(scale.X, scale.Y, scale.Z);
+                    part.PhysActor.Size = scale;
                     m_scene.PhysicsScene.AddPhysicsActorTaint(part.PhysActor);
                 }
                 //if (part.UUID != m_rootPart.UUID)
@@ -2891,8 +2889,7 @@ namespace OpenSim.Region.Framework.Scenes
 
                 if (part.PhysActor != null)
                 {
-                    part.PhysActor.Size =
-                        new PhysicsVector(prevScale.X, prevScale.Y, prevScale.Z);
+                    part.PhysActor.Size = prevScale;
                     m_scene.PhysicsScene.AddPhysicsActorTaint(part.PhysActor);
                 }
 
@@ -3405,6 +3402,8 @@ namespace OpenSim.Region.Framework.Scenes
                     return GetPriorityByDistance(client);
                 case Scene.UpdatePrioritizationSchemes.SimpleAngularDistance:
                     return GetPriorityBySimpleAngularDistance(client);
+                case Scenes.Scene.UpdatePrioritizationSchemes.FrontBack:
+                    return GetPriorityByFrontBack(client);
                 default:
                     throw new InvalidOperationException("UpdatePrioritizationScheme not defined");
             }
@@ -3437,6 +3436,16 @@ namespace OpenSim.Region.Framework.Scenes
             return double.NaN;
         }
 
+        private double GetPriorityByFrontBack(IClientAPI client)
+        {
+            ScenePresence presence = Scene.GetScenePresence(client.AgentId);
+            if (presence != null)
+            {
+                return GetPriorityByFrontBack(presence.CameraPosition, presence.CameraAtAxis);
+            }
+            return double.NaN;
+        }
+
         public double GetPriorityByDistance(Vector3 position)
         {
             return Vector3.Distance(AbsolutePosition, position);
@@ -3466,5 +3475,21 @@ namespace OpenSim.Region.Framework.Scenes
             else
                 return double.MinValue;
         }
+
+        public double GetPriorityByFrontBack(Vector3 camPosition, Vector3 camAtAxis)
+        {
+            // Distance
+            double priority = Vector3.Distance(camPosition, AbsolutePosition);
+
+            // Scale
+            //priority -= GroupScale().Length();
+
+            // Plane equation
+            float d = -Vector3.Dot(camPosition, camAtAxis);
+            float p = Vector3.Dot(camAtAxis, AbsolutePosition) + d;
+            if (p < 0.0f) priority *= 2.0f;
+
+            return priority;
+        }
     }
 }