Fix llRegionSayTo the right way

OpenSim/Framework/OSChatMessage.cs

@@ -51,6 +51,7 @@ namespace OpenSim.Framework
         protected object m_senderObject;
         protected ChatTypeEnum m_type;
         protected UUID m_fromID;
+        protected UUID m_destination = UUID.Zero;
 
         public OSChatMessage()
         {
@@ -131,6 +132,12 @@ namespace OpenSim.Framework
             set { m_fromID = value; }
         }
 
+        public UUID Destination
+        {
+            get { return m_destination; }
+            set { m_destination = value; }
+        }
+
         /// <summary>
         ///
         /// </summary>

OpenSim/Region/CoreModules/Avatar/Chat/ChatModule.cs

@@ -199,6 +199,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
             UUID fromID = UUID.Zero;
             string message = c.Message;
             IScene scene = c.Scene;
+            UUID destination = c.Destination;
             Vector3 fromPos = c.Position;
             Vector3 regionPos = new Vector3(scene.RegionInfo.RegionLocX * Constants.RegionSize,
                                             scene.RegionInfo.RegionLocY * Constants.RegionSize, 0);
@@ -222,6 +223,7 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
                 {
                     fromNamePrefix = m_adminPrefix;
                 }
+                destination = UUID.Zero; // Avatars cant "SayTo"
                 break;
 
             case ChatSourceType.Object:
@@ -244,9 +246,13 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
             {
                 // This should use ForEachClient, but clients don't have a position.
                 // If camera is moved into client, then camera position can be used
+                // MT: No, it can't, as chat is heard from the avatar position, not
+                // the camera position.
                 s.ForEachRootScenePresence(
                     delegate(ScenePresence presence)
                     {
+                        if (destination != UUID.Zero && presence.UUID != destination)
+                            return;
                         ILandObject Presencecheck = s.LandChannel.GetLandObject(presence.AbsolutePosition.X, presence.AbsolutePosition.Y);
                         if (Presencecheck != null)
                         {
@@ -346,8 +352,9 @@ namespace OpenSim.Region.CoreModules.Avatar.Chat
                                                   UUID fromAgentID, string fromName, ChatTypeEnum type,
                                                   string message, ChatSourceType src)
         {
-            // don't send stuff to child agents
-            if (presence.IsChildAgent) return false;
+            // don't send llRegionSay to child agents. Send normal chat because you
+            // can't talk across sim borders if it's not done
+            if (type == ChatTypeEnum.Broadcast && presence.IsChildAgent) return false;
 
             Vector3 fromRegionPos = fromPos + regionPos;
             Vector3 toRegionPos = presence.AbsolutePosition +

OpenSim/Region/CoreModules/Scripting/WorldComm/WorldCommModule.cs

@@ -90,6 +90,8 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
         // private static readonly ILog m_log =
         //     LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
+        private const int DEBUG_CHANNEL = 2147483647;
+
         private ListenerManager m_listenerManager;
         private Queue m_pending;
         private Queue m_pendingQ;
@@ -311,6 +313,10 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
         public bool DeliverMessageTo(UUID target, int channel, Vector3 pos, string name, UUID id, string msg, out string error)
         {
             error = null;
+
+            if (channel == DEBUG_CHANNEL)
+                return true;
+
             // Is id an avatar?
             ScenePresence sp = m_scene.GetScenePresence(target);
 
@@ -319,7 +325,9 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
                 // Send message to avatar
                 if (channel == 0)
                 {
-                    m_scene.SimChatBroadcast(Utils.StringToBytes(msg), ChatTypeEnum.Broadcast, 0, pos, name, id, false);
+                    // Channel 0 goes to viewer ONLY
+                    m_scene.SimChat(Utils.StringToBytes(msg), ChatTypeEnum.Broadcast, 0, pos, name, id, false, false, target);
+                    return true;
                 }
 
                 List<SceneObjectGroup> attachments = sp.GetAttachments();
@@ -351,12 +359,9 @@ namespace OpenSim.Region.CoreModules.Scripting.WorldComm
                 return true;
             }
 
-            // Need to toss an error here
-            if (channel == 0)
-            {
-                error = "Cannot use llRegionSayTo to message objects on channel 0";
-                return false;
-            }
+            SceneObjectPart part = m_scene.GetSceneObjectPart(target);
+            if (part == null) // Not even an object
+                return true; // No error
 
             foreach (ListenerInfo li in m_listenerManager.GetListeners(UUID.Zero, channel, name, id, msg))
             {

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

@@ -38,8 +38,8 @@ namespace OpenSim.Region.Framework.Scenes
 {
     public partial class Scene
     {
-        protected void SimChat(byte[] message, ChatTypeEnum type, int channel, Vector3 fromPos, string fromName,
-                               UUID fromID, bool fromAgent, bool broadcast)
+        public void SimChat(byte[] message, ChatTypeEnum type, int channel, Vector3 fromPos, string fromName,
+                               UUID fromID, bool fromAgent, bool broadcast, UUID destination)
         {
             OSChatMessage args = new OSChatMessage();
 
@@ -49,6 +49,7 @@ namespace OpenSim.Region.Framework.Scenes
             args.Position = fromPos;
             args.SenderUUID = fromID;
             args.Scene = this;
+            args.Destination = destination;
 
             if (fromAgent)
             {
@@ -71,6 +72,12 @@ namespace OpenSim.Region.Framework.Scenes
                 EventManager.TriggerOnChatFromWorld(this, args);
         }
         
+        protected void SimChat(byte[] message, ChatTypeEnum type, int channel, Vector3 fromPos, string fromName,
+                               UUID fromID, bool fromAgent, bool broadcast)
+        {
+            SimChat(message, type, channel, fromPos, fromName, fromID, fromAgent, broadcast, UUID.Zero);
+        }
+
         /// <summary>
         ///
         /// </summary>