3 files changed, 105 insertions, 10 deletions

diff --git a/OpenSim/Region/OptionalModules/Scripting/ExtendedPhysics/ExtendedPhysics.cs b/OpenSim/Region/OptionalModules/Scripting/ExtendedPhysics/ExtendedPhysics.cs
index 4455df4..decb61a 100755
--- a/OpenSim/Region/OptionalModules/Scripting/ExtendedPhysics/ExtendedPhysics.cs
+++ b/OpenSim/Region/OptionalModules/Scripting/ExtendedPhysics/ExtendedPhysics.cs
@@ -61,6 +61,10 @@ public class ExtendedPhysics : INonSharedRegionModule
     // Per prim functions. See BSPrim.
     public const string PhysFunctGetLinksetType = "BulletSim.GetLinksetType";
     public const string PhysFunctSetLinksetType = "BulletSim.SetLinksetType";
+    public const string PhysFunctChangeLinkFixed = "BulletSim.ChangeLinkFixed";
+    public const string PhysFunctChangeLinkHinge = "BulletSim.ChangeLinkHinge";
+    public const string PhysFunctChangeLinkSpring = "BulletSim.ChangeLinkSpring";
+    public const string PhysFunctChangeLinkSlider = "BulletSim.ChangeLinkSlider";
 
     // =============================================================
 
@@ -250,7 +254,6 @@ public class ExtendedPhysics : INonSharedRegionModule
     public int physGetLinksetType(UUID hostID, UUID scriptID)
     {
         int ret = -1;
-
         if (!Enabled) return ret;
 
         // The part that is requesting the change.
@@ -287,5 +290,82 @@ public class ExtendedPhysics : INonSharedRegionModule
         }
         return ret;
     }
+
+    [ScriptInvocation]
+    public int physChangeLinkFixed(UUID hostID, UUID scriptID, int linkNum)
+    {
+        int ret = -1;
+        if (!Enabled) return ret;
+
+        // The part that is requesting the change.
+        SceneObjectPart requestingPart = BaseScene.GetSceneObjectPart(hostID);
+
+        if (requestingPart != null)
+        {
+            // The type is is always on the root of a linkset.
+            SceneObjectGroup containingGroup = requestingPart.ParentGroup;
+            SceneObjectPart rootPart = containingGroup.RootPart;
+
+            if (rootPart != null)
+            {
+                Physics.Manager.PhysicsActor rootPhysActor = rootPart.PhysActor;
+                if (rootPhysActor != null)
+                {
+                    SceneObjectPart linkPart = containingGroup.GetLinkNumPart(linkNum);
+                    if (linkPart != null)
+                    {
+                        Physics.Manager.PhysicsActor linkPhysActor = linkPart.PhysActor;
+                        if (linkPhysActor != null)
+                        {
+                            ret = (int)rootPhysActor.Extension(PhysFunctChangeLinkFixed, linkNum, linkPhysActor);
+                        }
+                        else
+                        {
+                            m_log.WarnFormat("{0} physChangeLinkFixed: Link part has no physical actor. rootName={1}, hostID={2}, linknum={3}",
+                                                LogHeader, rootPart.Name, hostID, linkNum);
+                        }
+                    }
+                    else
+                    {
+                        m_log.WarnFormat("{0} physChangeLinkFixed: Could not find linknum part. rootName={1}, hostID={2}, linknum={3}",
+                                            LogHeader, rootPart.Name, hostID, linkNum);
+                    }
+                }
+                else
+                {
+                    m_log.WarnFormat("{0} physChangeLinkFixed: Root part does not have a physics actor. rootName={1}, hostID={2}",
+                                        LogHeader, rootPart.Name, hostID);
+                }
+            }
+            else
+            {
+                m_log.WarnFormat("{0} physChangeLinkFixed: Root part does not exist. RequestingPartName={1}, hostID={2}",
+                                    LogHeader, requestingPart.Name, hostID);
+            }
+        }
+        else
+        {
+            m_log.WarnFormat("{0} physGetLinsetType: cannot find script object in scene. hostID={1}", LogHeader, hostID);
+        }
+        return ret;
+    }
+
+    [ScriptInvocation]
+    public int physChangeLinkHinge(UUID hostID, UUID scriptID, int linkNum)
+    {
+        return 0;
+    }
+
+    [ScriptInvocation]
+    public int physChangeLinkSpring(UUID hostID, UUID scriptID, int linkNum)
+    {
+        return 0;
+    }
+
+    [ScriptInvocation]
+    public int physChangeLinkSlider(UUID hostID, UUID scriptID, int linkNum)
+    {
+        return 0;
+    }
 }
 }
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPrimLinkable.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPrimLinkable.cs
index fc639ad..77d8246 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSPrimLinkable.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSPrimLinkable.cs
@@ -60,10 +60,7 @@ public class BSPrimLinkable : BSPrimDisplaced
 
         Linkset = BSLinkset.Factory(PhysScene, this);
 
-        PhysScene.TaintedObject("BSPrimLinksetCompound.Refresh", delegate()
-        {
-            Linkset.Refresh(this);
-        });
+        Linkset.Refresh(this);
     }
 
     public override void Destroy()
@@ -82,7 +79,7 @@ public class BSPrimLinkable : BSPrimDisplaced
 
             Linkset = parent.Linkset.AddMeToLinkset(this);
 
-            DetailLog("{0},BSPrimLinkset.link,call,parentBefore={1}, childrenBefore=={2}, parentAfter={3}, childrenAfter={4}",
+            DetailLog("{0},BSPrimLinkable.link,call,parentBefore={1}, childrenBefore=={2}, parentAfter={3}, childrenAfter={4}",
                 LocalID, parentBefore.LocalID, childrenBefore, Linkset.LinksetRoot.LocalID, Linkset.NumberOfChildren);
         }
         return;
@@ -98,7 +95,7 @@ public class BSPrimLinkable : BSPrimDisplaced
 
         Linkset = Linkset.RemoveMeFromLinkset(this, false /* inTaintTime*/);
 
-        DetailLog("{0},BSPrimLinkset.delink,parentBefore={1},childrenBefore={2},parentAfter={3},childrenAfter={4}, ",
+        DetailLog("{0},BSPrimLinkable.delink,parentBefore={1},childrenBefore={2},parentAfter={3},childrenAfter={4}, ",
             LocalID, parentBefore.LocalID, childrenBefore, Linkset.LinksetRoot.LocalID, Linkset.NumberOfChildren);
         return;
     }
@@ -110,7 +107,7 @@ public class BSPrimLinkable : BSPrimDisplaced
         set
         {
             base.Position = value;
-            PhysScene.TaintedObject("BSPrimLinkset.setPosition", delegate()
+            PhysScene.TaintedObject("BSPrimLinkable.setPosition", delegate()
             {
                 Linkset.UpdateProperties(UpdatedProperties.Position, this);
             });
@@ -124,7 +121,7 @@ public class BSPrimLinkable : BSPrimDisplaced
         set
         {
             base.Orientation = value;
-            PhysScene.TaintedObject("BSPrimLinkset.setOrientation", delegate()
+            PhysScene.TaintedObject("BSPrimLinkable.setOrientation", delegate()
             {
                 Linkset.UpdateProperties(UpdatedProperties.Orientation, this);
             });
@@ -242,7 +239,7 @@ public class BSPrimLinkable : BSPrimDisplaced
         bool ret = false;
         if (LinksetType != newType)
         {
-            DetailLog("{0},BSPrimLinkset.ConvertLinkset,oldT={1},newT={2}", LocalID, LinksetType, newType);
+            DetailLog("{0},BSPrimLinkable.ConvertLinkset,oldT={1},newT={2}", LocalID, LinksetType, newType);
 
             // Set the implementation type first so the call to BSLinkset.Factory gets the new type.
             this.LinksetType = newType;
@@ -288,12 +285,14 @@ public class BSPrimLinkable : BSPrimDisplaced
         object ret = null;
         switch (pFunct)
         {
+            // physGetLinksetType();
             case BSScene.PhysFunctGetLinksetType:
             {
                 ret = (object)LinksetType;
                 m_log.DebugFormat("{0} Extension.physGetLinksetType, type={1}", LogHeader, ret);
                 break;
             }
+            // physSetLinksetType(type);
             case BSScene.PhysFunctSetLinksetType:
             {
                 if (pParams.Length > 0)
@@ -313,6 +312,18 @@ public class BSPrimLinkable : BSPrimDisplaced
                 }
                 break;
             }
+            // physChangeLinkFixed(linknum);
+            // Params: int linkNum, PhysActor linkedPrim
+            case BSScene.PhysFunctChangeLinkFixed:
+            {
+                if (pParams.Length > 1)
+                {
+                    int linkNum = (int)pParams[0];
+                    Manager.PhysicsActor linkActor = (Manager.PhysicsActor)pParams[1];
+                    Linkset.Refresh(this);
+                }
+                break;
+            }
             default:
                 ret = base.Extension(pFunct, pParams);
                 break;
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs b/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs
index 88d50b4..b451129 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs
@@ -875,6 +875,10 @@ public sealed class BSScene : PhysicsScene, IPhysicsParameters
     // Per prim functions. See BSPrim.
     public const string PhysFunctGetLinksetType = "BulletSim.GetLinksetType";
     public const string PhysFunctSetLinksetType = "BulletSim.SetLinksetType";
+    public const string PhysFunctChangeLinkFixed = "BulletSim.ChangeLinkFixed";
+    public const string PhysFunctChangeLinkHinge = "BulletSim.ChangeLinkHinge";
+    public const string PhysFunctChangeLinkSpring = "BulletSim.ChangeLinkSpring";
+    public const string PhysFunctChangeLinkSlider = "BulletSim.ChangeLinkSlider";
     // =============================================================
 
     public override object Extension(string pFunct, params object[] pParams)