limit number of prims on physical objects. Not all cases covered still

OpenSim/Region/Framework/Scenes/Scene.Inventory.cs

@@ -2705,12 +2705,17 @@ namespace OpenSim.Region.Framework.Scenes
                 return;
             }
 
+            bool oldUsePhysics = (root.Flags & PrimFlags.Physics) != 0;
             m_sceneGraph.LinkObjects(root, children);
 
             ScenePresence sp;
             if (TryGetScenePresence(agentId, out sp))
             {
                 root.SendPropertiesToClient(sp.ControllingClient);
+                if (oldUsePhysics && (root.Flags & PrimFlags.Physics) == 0)
+                {
+                    sp.ControllingClient.SendAlertMessage("Object physics canceled");
+                }
             }
         }
 

OpenSim/Region/Framework/Scenes/Scene.cs

@@ -204,6 +204,12 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         public int m_linksetCapacity = 0;
 
+        /// <summary>
+        /// Max prims an Physical object will hold
+        /// </summary>
+        /// 
+        public int m_linksetPhysCapacity = 5;
+
         public bool m_clampPrimSize;
         public bool m_trustBinaries;
         public bool m_allowScriptCrossings;
@@ -901,6 +907,9 @@ namespace OpenSim.Region.Framework.Scenes
                     m_linksetCapacity = RegionInfo.LinksetCapacity;
                 }
 
+                m_linksetPhysCapacity = startupConfig.GetInt("LinksetPhysPrims", m_linksetPhysCapacity);
+
+
                 SpawnPointRouting = startupConfig.GetString("SpawnPointRouting", "closest");
                 TelehubAllowLandmarks = startupConfig.GetBoolean("TelehubAllowLandmark", false);
 

OpenSim/Region/Framework/Scenes/SceneGraph.cs

@@ -1547,6 +1547,7 @@ namespace OpenSim.Region.Framework.Scenes
                     // VolumeDetect can't be set via UI and will always be off when a change is made there
                     // now only change volume dtc if phantom off
 
+                    bool wantedPhys = UsePhysics;
                     if (PhysData.PhysShapeType == PhysShapeType.invalid) // check for extraPhysics data
                     {
                         bool vdtc;
@@ -1563,10 +1564,17 @@ namespace OpenSim.Region.Framework.Scenes
                         if (part != null)
                         {
                             part.UpdateExtraPhysics(PhysData);
-                            if (part.UpdatePhysRequired)
+                            if (part.UpdatePhysRequired && remoteClient != null)
                                 remoteClient.SendPartPhysicsProprieties(part);
                         }
                     }
+
+                    if (wantedPhys != group.UsesPhysics && remoteClient != null)
+                    {
+                        remoteClient.SendAlertMessage("Object physics canceled because exceeds the limit of " +
+                            m_parentScene.m_linksetPhysCapacity + " physical prims with shape type not set to None");
+                        group.RootPart.ScheduleFullUpdate();
+                    }
                 }
             }
         }

OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs

@@ -1712,7 +1712,9 @@ namespace OpenSim.Region.Framework.Scenes
             m_rootPart.SetParentLocalId(0);
             AttachmentPoint = (byte)0;
             // must check if buildind should be true or false here
-            m_rootPart.ApplyPhysics(m_rootPart.GetEffectiveObjectFlags(), m_rootPart.VolumeDetectActive,false);
+//            m_rootPart.ApplyPhysics(m_rootPart.GetEffectiveObjectFlags(), m_rootPart.VolumeDetectActive,false);
+            ApplyPhysics();
+
             HasGroupChanged = true;
             RootPart.Rezzed = DateTime.Now;
             RootPart.RemFlag(PrimFlags.TemporaryOnRez);
@@ -2879,6 +2881,33 @@ namespace OpenSim.Region.Framework.Scenes
                 return;
             }
 
+            // physical prims count limit
+            // not very eficient :(
+
+            if (UsesPhysics && m_scene.m_linksetPhysCapacity > 0 && (PrimCount + objectGroup.PrimCount) >
+                    m_scene.m_linksetPhysCapacity)
+            {
+                int cntr = 0;
+                foreach (SceneObjectPart part in Parts)
+                {
+                    if (part.PhysicsShapeType != (byte)PhysicsShapeType.None)
+                        cntr++;
+                }
+                foreach (SceneObjectPart part in objectGroup.Parts)
+                {
+                    if (part.PhysicsShapeType != (byte)PhysicsShapeType.None)
+                        cntr++;
+                }
+
+                if (cntr > m_scene.m_linksetPhysCapacity)
+                {
+                    // cancel physics
+                    RootPart.Flags &= ~PrimFlags.Physics;
+                    ApplyPhysics();
+                }
+            }
+
+
             // 'linkPart' == the root of the group being linked into this group
             SceneObjectPart linkPart = objectGroup.m_rootPart;
 
@@ -3477,8 +3506,12 @@ namespace OpenSim.Region.Framework.Scenes
             {
                 SceneObjectPart[] parts = m_parts.GetArray();
                 
-                if (Scene != null)
+                if (Scene != null && UsePhysics)               
                 {
+                    int maxprims = m_scene.m_linksetPhysCapacity;
+                    bool checkShape = (maxprims > 0 &&
+                             parts.Length > maxprims);
+
                     for (int i = 0; i < parts.Length; i++)
                     {
                         SceneObjectPart part = parts[i];
@@ -3489,6 +3522,15 @@ namespace OpenSim.Region.Framework.Scenes
                             UsePhysics = false; // Reset physics
                             break;
                         }
+
+                        if (checkShape && part.PhysicsShapeType != (byte)PhysicsShapeType.None)
+                        {
+                            if (--maxprims < 0)
+                            {
+                                UsePhysics = false;
+                                break;
+                            }
+                        }
                     }
                 }
 

OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs

@@ -1400,6 +1400,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     SceneObjectGroup group = m_host.ParentGroup;
                     bool allow = true;
 
+                    int maxprims = World.m_linksetPhysCapacity;
+                    bool checkShape = (maxprims > 0 && group.PrimCount > maxprims);
+
                     foreach (SceneObjectPart part in group.Parts)
                     {
                         if (part.Scale.X > World.m_maxPhys || part.Scale.Y > World.m_maxPhys || part.Scale.Z > World.m_maxPhys)
@@ -1407,6 +1410,14 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                             allow = false;
                             break;
                         }
+                        if (checkShape && part.PhysicsShapeType != (byte)PhysicsShapeType.None)
+                        {
+                            if (--maxprims < 0)
+                            {
+                                allow = false;
+                                break;
+                            }
+                        }
                     }
 
                     if (!allow)