From 1d65b0d80296a672c8023293aee7d0a01bad4066 Mon Sep 17 00:00:00 2001
From: Robert Adams
Date: Thu, 18 Jul 2013 19:09:55 -0700
Subject: BulletSim: add position resetting for stationary avatars so they
 don't move around when standing on a stationary object. Create proper linkage
 between BSCharacter and its actor by generating a UpdatedProperties event the
 same way BSPrim does.

---
 .../Region/Physics/BulletSPlugin/BSActorAvatarMove.cs   | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

(limited to 'OpenSim/Region/Physics/BulletSPlugin/BSActorAvatarMove.cs')

diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSActorAvatarMove.cs b/OpenSim/Region/Physics/BulletSPlugin/BSActorAvatarMove.cs
index 928b350..0f11c4a 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSActorAvatarMove.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSActorAvatarMove.cs
@@ -130,6 +130,7 @@ public class BSActorAvatarMove : BSActor
             SetVelocityAndTarget(m_controllingPrim.RawVelocity, m_controllingPrim.TargetVelocity, true /* inTaintTime */);
 
             m_physicsScene.BeforeStep += Mover;
+            m_controllingPrim.OnPreUpdateProperty += Process_OnPreUpdateProperty;
 
             m_walkingUpStairs = 0;
         }
@@ -139,6 +140,7 @@ public class BSActorAvatarMove : BSActor
     {
         if (m_velocityMotor != null)
         {
+            m_controllingPrim.OnPreUpdateProperty -= Process_OnPreUpdateProperty;
             m_physicsScene.BeforeStep -= Mover;
             m_velocityMotor = null;
         }
@@ -197,7 +199,7 @@ public class BSActorAvatarMove : BSActor
             {
                 if (m_controllingPrim.Flying)
                 {
-                    // Flying and not collising and velocity nearly zero.
+                    // Flying and not colliding and velocity nearly zero.
                     m_controllingPrim.ZeroMotion(true /* inTaintTime */);
                 }
             }
@@ -266,6 +268,19 @@ public class BSActorAvatarMove : BSActor
         }
     }
 
+    // Called just as the property update is received from the physics engine.
+    // Do any mode necessary for avatar movement.
+    private void Process_OnPreUpdateProperty(ref EntityProperties entprop)
+    {
+        // Don't change position if standing on a stationary object.
+        if (m_controllingPrim.IsStationary)
+        {
+            entprop.Position = m_controllingPrim.RawPosition;
+            m_physicsScene.PE.SetTranslation(m_controllingPrim.PhysBody, entprop.Position, entprop.Rotation);
+        }
+
+    }
+
     // Decide if the character is colliding with a low object and compute a force to pop the
     //    avatar up so it can walk up and over the low objects.
     private OMV.Vector3 WalkUpStairs()
-- 
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