From 4e7cddc6a8a764a76b270dbb7aeb3a16e2bff56c Mon Sep 17 00:00:00 2001
From: UbitUmarov <ajlduarte@sapo.pt>
Date: Thu, 7 Mar 2019 17:11:52 +0000
Subject: [PATCH] vegetation is special

---
 .../ClientStack/Linden/UDP/LLClientView.cs    | 99 +++++++++++++------
 1 file changed, 71 insertions(+), 28 deletions(-)

diff --git a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
index 171f8c61cc..f984009f5b 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
@@ -6241,20 +6241,6 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         {
             // prepare data
 
-            //NameValue and state
-            byte[] nv = null;
-            byte state;
-            if (part.ParentGroup.IsAttachment)
-            {
-                if (part.IsRoot)
-                    nv = Util.StringToBytes256("AttachItemID STRING RW SV " + part.ParentGroup.FromItemID);
-
-                int st = (int)part.ParentGroup.AttachmentPoint;
-                state = (byte)(((st & 0xf0) >> 4) + ((st & 0x0f) << 4)); ;
-            }
-            else
-                state = part.Shape.State; // not sure about this
-
             #region PrimFlags
             // prim/update flags
             PrimFlags primflags = (PrimFlags)m_scene.Permissions.GenerateClientFlags(part, sp);
@@ -6271,6 +6257,76 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             }
             #endregion PrimFlags
 
+            // data block
+            byte[] data = null;
+            byte state = part.Shape.State;
+            PCode pcode = (PCode)part.Shape.PCode;
+
+            //vegetation is special so just do it inline
+            if(pcode == PCode.Grass || pcode == PCode.Tree ||  pcode == PCode.NewTree)
+            {
+                zc.AddUInt(part.LocalId);
+                zc.AddByte(state); // state
+                zc.AddUUID(part.UUID);
+                zc.AddZeros(4); // crc unused
+                zc.AddByte((byte)pcode);
+                // material 1
+                // clickaction 1
+                zc.AddZeros(2);
+                zc.AddVector3(part.Shape.Scale);
+
+                // objectdata block
+                zc.AddByte(60); // fixed object block size
+                zc.AddVector3(part.RelativePosition);
+                zc.AddZeros(24);
+                Quaternion rot = part.RotationOffset;
+                rot.Normalize();
+                zc.AddNormQuat(rot);
+                zc.AddZeros(12);
+
+                zc.AddUInt(part.ParentID);
+                zc.AddUInt((uint)primflags); //update flags
+
+                //pbs volume data 23
+                //texture entry 2
+                //texture anim 1
+                //name value 2
+                zc.AddZeros(23 + 2 + 1 + 2);
+
+                //data
+                zc.AddByte(1);
+                zc.AddZeros(1);
+                zc.AddByte(state);
+
+                // text 5
+                // media url 1
+                // particle system 1
+                // Extraparams 1
+                // sound id 16
+                // ownwer 16
+                // sound gain 4
+                // sound flags 1
+                // sound radius 4
+                // jointtype 1
+                // joint pivot 12
+                // joint offset 12
+                zc.AddZeros(5 + 1 + 1 + 1 + 16 + 16 + 4 + 1 + 4 + 1 + 12 + 12);
+
+                return;
+            }
+
+            //NameValue and state
+            byte[] nv = null;
+            
+            if (part.ParentGroup.IsAttachment)
+            {
+                if (part.IsRoot)
+                    nv = Util.StringToBytes256("AttachItemID STRING RW SV " + part.ParentGroup.FromItemID);
+
+                int st = (int)part.ParentGroup.AttachmentPoint;
+                state = (byte)(((st & 0xf0) >> 4) + ((st & 0x0f) << 4)); ;
+            }
+
             // filter out mesh faces hack
             ushort profileBegin = part.Shape.ProfileBegin;
             ushort profileHollow = part.Shape.ProfileHollow;
@@ -6290,25 +6346,12 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                     pathScaleY = 150;
             }
 
-            // data block
-            byte[] data = null;
-            switch ((PCode)part.Shape.PCode)
-            {
-                case PCode.Grass:
-                case PCode.Tree:
-                case PCode.NewTree:
-                    data = new byte[] { part.Shape.State };
-                    break;
-                default:
-                    break;
-            }
-
             // do encode the things
             zc.AddUInt(part.LocalId);
             zc.AddByte(state); // state
             zc.AddUUID(part.UUID);
             zc.AddZeros(4); // crc unused
-            zc.AddByte(part.Shape.PCode);
+            zc.AddByte((byte)pcode);
             zc.AddByte(part.Material);
             zc.AddByte(part.ClickAction); // clickaction
             zc.AddVector3(part.Shape.Scale);