From 5adafd538ae98073127f890d8a3db13745e6b716 Mon Sep 17 00:00:00 2001
From: Adam Frisby
Date: Sat, 20 Oct 2007 00:09:07 +0000
Subject: * Fixed an issue whereby avatar chat distances were being calculated
 against the region corner due to a zero vector. * Bonus Commit: Fixed the
 Raster class in libTerrain.

---
 OpenSim/Region/Environment/Modules/ChatModule.cs   | 12 ++++++-----
 .../libTerrainBSD/Bitmap/Bitmap.cs                 | 24 +++++++++++++++++++---
 2 files changed, 28 insertions(+), 8 deletions(-)

diff --git a/OpenSim/Region/Environment/Modules/ChatModule.cs b/OpenSim/Region/Environment/Modules/ChatModule.cs
index a438ae6..e1a591b 100644
--- a/OpenSim/Region/Environment/Modules/ChatModule.cs
+++ b/OpenSim/Region/Environment/Modules/ChatModule.cs
@@ -217,7 +217,8 @@ namespace OpenSim.Region.Environment.Modules
 
             if (avatar != null)
             {
-                fromPos = avatar.AbsolutePosition;
+                fromPos = avatar.AbsolutePosition;
+                fromRegionPos = fromPos + new LLVector3(e.Scene.RegionInfo.RegionLocX * 256, e.Scene.RegionInfo.RegionLocY * 256, 0);
                 fromName = avatar.Firstname + " " + avatar.Lastname;
                 fromAgentID = e.Sender.AgentId;
                 avatar = null;
@@ -271,12 +272,12 @@ namespace OpenSim.Region.Environment.Modules
                                                          int dis = -100000;
 
                                                          LLVector3 avatarRegionPos = presence.AbsolutePosition + new LLVector3(scene.RegionInfo.RegionLocX * 256, scene.RegionInfo.RegionLocY * 256, 0);
-                                                         dis = (int)avatarRegionPos.GetDistanceTo(fromRegionPos);
+                                                         dis = Math.Abs((int)avatarRegionPos.GetDistanceTo(fromRegionPos));
 
                                                          switch (e.Type)
                                                          {
                                                              case ChatTypeEnum.Whisper:
-                                                                 if ((dis < m_whisperdistance) && (dis > -m_whisperdistance))
+                                                                 if (dis < m_whisperdistance)
                                                                  {
                                                                      //should change so the message is sent through the avatar rather than direct to the ClientView
                                                                      presence.ControllingClient.SendChatMessage(message,
@@ -286,8 +287,9 @@ namespace OpenSim.Region.Environment.Modules
                                                                                                                 fromAgentID);
                                                                  }
                                                                  break;
+                                                             default:
                                                              case ChatTypeEnum.Say:
-                                                                 if ((dis < m_saydistance) && (dis > -m_saydistance))
+                                                                 if (dis < m_saydistance)
                                                                  {
                                                                      //Console.WriteLine("sending chat");
                                                                      presence.ControllingClient.SendChatMessage(message,
@@ -298,7 +300,7 @@ namespace OpenSim.Region.Environment.Modules
                                                                  }
                                                                  break;
                                                              case ChatTypeEnum.Shout:
-                                                                 if ((dis < m_shoutdistance) && (dis > -m_shoutdistance))
+                                                                 if (dis < m_shoutdistance)
                                                                  {
                                                                      presence.ControllingClient.SendChatMessage(message,
                                                                                                                 type,
diff --git a/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Bitmap/Bitmap.cs b/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Bitmap/Bitmap.cs
index 4f98af1..8359f8e 100644
--- a/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Bitmap/Bitmap.cs
+++ b/OpenSim/Region/Terrain.BasicTerrain/libTerrainBSD/Bitmap/Bitmap.cs
@@ -39,6 +39,11 @@ namespace libTerrain
         int h;
         Bitmap bmp;
 
+        /// <summary>
+        /// Creates a new Raster channel for use with bitmap or GDI functions
+        /// </summary>
+        /// <param name="width">Width in pixels</param>
+        /// <param name="height">Height in pixels</param>
         public Raster(int width, int height)
         {
             w = width;
@@ -46,6 +51,10 @@ namespace libTerrain
             bmp = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
         }
 
+        /// <summary>
+        /// Converts a raster image to a channel by averaging the RGB values to a single 0..1 heightmap
+        /// </summary>
+        /// <returns>A libTerrain Channel</returns>
         public Channel ToChannel()
         {
             Channel chan = new Channel(bmp.Width, bmp.Height);
@@ -63,12 +72,21 @@ namespace libTerrain
             return chan;
         }
 
+        /// <summary>
+        /// Draws a piece of text into the specified raster
+        /// </summary>
+        /// <param name="txt">The text string to print</param>
+        /// <param name="font">The font to use to draw the specified image</param>
+        /// <param name="size">Font size (points) to use</param>
         public void DrawText(string txt, string font, double size)
         {
-            Graphics gd = Graphics.FromImage(bmp);
-            //gd.DrawString(txt,
+            Rectangle area = new Rectangle(0, 0, 256, 256);
+            StringFormat sf = new StringFormat();
+            sf.Alignment = StringAlignment.Center;
+            sf.LineAlignment = StringAlignment.Center;
 
-            
+            Graphics gd = Graphics.FromImage(bmp);
+            gd.DrawString(txt, new Font(font, (float)size), new SolidBrush(Color.White), area, sf);
         }
     }
 }
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