From f87af983f393526ab6cebfbd711abdacd979a6ff Mon Sep 17 00:00:00 2001
From: UbitUmarov <ajlduarte@sapo.pt>
Date: Tue, 18 Dec 2012 00:50:36 +0000
Subject: [PATCH] fix

---
 .../Region/Physics/Manager/PhysicsScene.cs    |  2 +-
 .../UbitOdePlugin/ODERayCastRequestManager.cs | 14 ++++++++++++++
 .../Physics/UbitOdePlugin/ODESitAvatar.cs     | 19 ++++++++++++-------
 3 files changed, 27 insertions(+), 8 deletions(-)

diff --git a/OpenSim/Region/Physics/Manager/PhysicsScene.cs b/OpenSim/Region/Physics/Manager/PhysicsScene.cs
index a442cf0970..86e07133a8 100644
--- a/OpenSim/Region/Physics/Manager/PhysicsScene.cs
+++ b/OpenSim/Region/Physics/Manager/PhysicsScene.cs
@@ -353,7 +353,7 @@ namespace OpenSim.Region.Physics.Manager
 
         public virtual void RaycastActor(PhysicsActor actor, Vector3 position, Vector3 direction, float length, RaycastCallback retMethod){}
         public virtual void RaycastActor(PhysicsActor actor, Vector3 position, Vector3 direction, float length, int Count, RayCallback retMethod) { }
-        public virtual List<ContactResult> RaycastActor(PhysicsActor actor, Vector3 position, Vector3 direction, float length, int Count)
+        public virtual List<ContactResult> RaycastActor(PhysicsActor actor, Vector3 position, Vector3 direction, float length, int Count, RayFilterFlags flags)
         {
             return new List<ContactResult>();
         }
diff --git a/OpenSim/Region/Physics/UbitOdePlugin/ODERayCastRequestManager.cs b/OpenSim/Region/Physics/UbitOdePlugin/ODERayCastRequestManager.cs
index 561ab1c0aa..54a83c2de4 100644
--- a/OpenSim/Region/Physics/UbitOdePlugin/ODERayCastRequestManager.cs
+++ b/OpenSim/Region/Physics/UbitOdePlugin/ODERayCastRequestManager.cs
@@ -199,6 +199,20 @@ namespace OpenSim.Region.Physics.OdePlugin
             m_PendingRequests.Enqueue(req);
         }
 
+        public void QueueRequest(IntPtr geom, Vector3 position, Vector3 direction, float length, int count,RayFilterFlags flags, RayCallback retMethod)
+        {
+            ODERayRequest req = new ODERayRequest();
+            req.geom = geom;
+            req.callbackMethod = retMethod;
+            req.length = length;
+            req.Normal = direction;
+            req.Origin = position;
+            req.Count = count;
+            req.filter = flags;
+
+            m_PendingRequests.Enqueue(req);
+        }
+
         public void QueueRequest(Vector3 position, Vector3 direction, float length, int count, RaycastCallback retMethod)
         {
             ODERayRequest req = new ODERayRequest();
diff --git a/OpenSim/Region/Physics/UbitOdePlugin/ODESitAvatar.cs b/OpenSim/Region/Physics/UbitOdePlugin/ODESitAvatar.cs
index c1a0ca9581..fd3a3ba8ce 100644
--- a/OpenSim/Region/Physics/UbitOdePlugin/ODESitAvatar.cs
+++ b/OpenSim/Region/Physics/UbitOdePlugin/ODESitAvatar.cs
@@ -52,6 +52,7 @@ namespace OpenSim.Region.Physics.OdePlugin
         }
 
         private static Vector3 SitAjust = new Vector3(0, 0, 0.4f);
+        private const RayFilterFlags RaySitFlags = RayFilterFlags.AllPrims | RayFilterFlags.ClosestHit;
 
         public void Sit(PhysicsActor actor, Vector3 avPos, Vector3 avCameraPosition, Vector3 offset, Vector3 avOffset, SitAvatarCallback PhysicsSitResponse)
         {
@@ -96,7 +97,7 @@ namespace OpenSim.Region.Physics.OdePlugin
             raylen += 30f; // focal point may be far
             List<ContactResult> rayResults;
 
-            rayResults = m_scene.RaycastActor(actor, avCameraPosition, rayDir , raylen, 1);
+            rayResults = m_scene.RaycastActor(actor, avCameraPosition, rayDir, raylen, 1, RaySitFlags);
             if (rayResults.Count == 0 || rayResults[0].ConsumerID != actor.LocalID)
             {
                 d.GeomGetAABB(geom,out aabb);
@@ -108,6 +109,7 @@ namespace OpenSim.Region.Physics.OdePlugin
                 return;
             }
 
+
             offset = rayResults[0].Pos - geopos;
             double ang;
             float s;
@@ -156,13 +158,16 @@ namespace OpenSim.Region.Physics.OdePlugin
                 return;
             }
 
-            Vector3 norm = rayResults[0].Normal;
+/*
+                // contact normals aren't reliable on meshs or sculpts it seems
+                Vector3 norm = rayResults[0].Normal;
 
-            if (norm.Z < 0)
-            {
-                PhysicsSitResponse(0, actor.LocalID, offset, Quaternion.Identity);
-                return;
-            }
+                if (norm.Z < 0)
+                {
+                    PhysicsSitResponse(0, actor.LocalID, offset, Quaternion.Identity);
+                    return;
+                }
+*/
 
             ang = Math.Atan2(-rayDir.Y, -rayDir.X);
             ang *= 0.5d;