3 files changed, 64 insertions, 0 deletions

diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
index bd6369c..e84ab05 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
@@ -4236,6 +4236,56 @@ namespace OpenSim.Region.Framework.Scenes
             ScheduleFullUpdate();
         }
 
+        public void UpdateSlice(float begin, float end)
+        {
+            if (end < begin)
+            {
+                float temp = begin;
+                begin = end;
+                end = temp;
+            }
+            end = Math.Min(1f, Math.Max(0f, end));
+            begin = Math.Min(Math.Min(1f, Math.Max(0f, begin)), end - 0.02f);
+            if (begin < 0.02f && end < 0.02f)
+            {
+                begin = 0f;
+                end = 0.02f;
+            }
+
+            ushort uBegin = (ushort)(50000.0 * begin);
+            ushort uEnd = (ushort)(50000.0 * (1f - end));
+            bool updatePossiblyNeeded = false;
+            if (GetPrimType() == PrimType.SPHERE)
+            {
+                if (m_shape.ProfileBegin != uBegin || m_shape.ProfileEnd != uEnd)
+                {
+                    m_shape.ProfileBegin = uBegin;
+                    m_shape.ProfileEnd = uEnd;
+                    updatePossiblyNeeded = true;
+                }
+            }
+            else if (m_shape.PathBegin != uBegin || m_shape.PathEnd != uEnd)
+            {
+                m_shape.PathBegin = uBegin;
+                m_shape.PathEnd = uEnd;
+                updatePossiblyNeeded = true;
+            }
+
+            if (updatePossiblyNeeded && ParentGroup != null)
+            {
+                ParentGroup.HasGroupChanged = true;
+            }
+            if (updatePossiblyNeeded && PhysActor != null)
+            {
+                PhysActor.Shape = m_shape;
+                ParentGroup.Scene.PhysicsScene.AddPhysicsActorTaint(PhysActor);
+            }
+            if (updatePossiblyNeeded)
+            {
+                ScheduleFullUpdate();
+            }
+        }
+
         /// <summary>
         /// If the part is a sculpt/mesh, retrieve the mesh data and reinsert it into the shape so that the physics
         /// engine can use it.
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 255fc8e..75491da 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -7666,6 +7666,12 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                             LSL_Float gain = rules.GetLSLFloatItem(idx++);
                             TargetOmega(part, axis, (double)spinrate, (double)gain);
                             break;
+                        case (int)ScriptBaseClass.PRIM_SLICE:
+                            if (remain < 1)
+                                return;
+                            LSL_Vector slice = rules.GetVector3Item(idx++);
+                            part.UpdateSlice((float)slice.x, (float)slice.y);
+                            break;
                         case (int)ScriptBaseClass.PRIM_LINK_TARGET:
                             if (remain < 3) // setting to 3 on the basis that parsing any usage of PRIM_LINK_TARGET that has nothing following it is pointless.
                                 return null;
@@ -8340,6 +8346,13 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     case (int)ScriptBaseClass.PRIM_POS_LOCAL:
                         res.Add(new LSL_Vector(GetPartLocalPos(part)));
                         break;
+                    case (int)ScriptBaseClass.PRIM_SLICE:
+                        res.Add(new LSL_Vector(
+                            (part.GetPrimType() == PrimType.SPHERE ? part.Shape.ProfileBegin : part.Shape.PathBegin) / 50000.0,
+                            1 - (part.GetPrimType() == PrimType.SPHERE ? part.Shape.ProfileEnd : part.Shape.PathEnd) / 50000.0,
+                            0
+                        ));
+                        break;
                 }
             }
             return res;
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
index e1c054d..cad8518 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
@@ -328,6 +328,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int PRIM_OMEGA = 32;
         public const int PRIM_POS_LOCAL = 33;
         public const int PRIM_LINK_TARGET = 34;
+        public const int PRIM_SLICE = 35;
         public const int PRIM_TEXGEN_DEFAULT = 0;
         public const int PRIM_TEXGEN_PLANAR = 1;