From 569ba9eb9acb9f024060a41ee4188a11aafa3fa7 Mon Sep 17 00:00:00 2001
From: Adam Frisby
Date: Tue, 25 Sep 2007 11:48:43 +0000
Subject: Terrain: * Attempted fix for lag/pause when doing lots of updates. *
 Some naming fixes to libTerrain. * Refactored terrain bitmap generation into
 a common call for both world map and export.

General:
* Switched some calls to Console.WriteLine to use MainLog.Warn/Verbose/Notice.


---
 .../Region/Terrain.BasicTerrain/TerrainEngine.cs   | 92 +++++++++++-----------
 1 file changed, 47 insertions(+), 45 deletions(-)

(limited to 'OpenSim/Region/Terrain.BasicTerrain/TerrainEngine.cs')

diff --git a/OpenSim/Region/Terrain.BasicTerrain/TerrainEngine.cs b/OpenSim/Region/Terrain.BasicTerrain/TerrainEngine.cs
index c3c4935..d010a03 100644
--- a/OpenSim/Region/Terrain.BasicTerrain/TerrainEngine.cs
+++ b/OpenSim/Region/Terrain.BasicTerrain/TerrainEngine.cs
@@ -81,6 +81,11 @@ namespace OpenSim.Region.Terrain
         /// </summary>
         public double minLower = 500.0;
 
+        /// <summary>
+        /// The last time the terrain was edited
+        /// </summary>
+        public DateTime lastEdit = DateTime.Now;
+
 
         /// <summary>
         /// Whether or not the terrain has been modified since it was last saved and sent to the Physics engine.
@@ -120,6 +125,16 @@ namespace OpenSim.Region.Terrain
             return (tainted != 0);
         }
 
+        public bool StillEditing()
+        {
+            TimeSpan gap = DateTime.Now - lastEdit;
+
+            if (gap.TotalSeconds <= 2.0)
+                return true;
+
+            return false;
+        }
+
         public bool Tainted(int x, int y)
         {
             return (heightmap.diff[x / 16, y / 16] != 0);
@@ -197,6 +212,8 @@ namespace OpenSim.Region.Terrain
                 }
             }
 
+            lastEdit = DateTime.Now;
+
             return;
         }
 
@@ -1172,28 +1189,7 @@ namespace OpenSim.Region.Terrain
         {
             try
             {
-                Bitmap gradientmapLd = new Bitmap(gradientmap);
-
-                int pallete = gradientmapLd.Height;
-
-                Bitmap bmp = new Bitmap(heightmap.w, heightmap.h);
-                Color[] colours = new Color[pallete];
-
-                for (int i = 0; i < pallete; i++)
-                {
-                    colours[i] = gradientmapLd.GetPixel(0, i);
-                }
-
-                Channel copy = heightmap.Copy();
-                for (int y = 0; y < copy.h; y++)
-                {
-                    for (int x = 0; x < copy.w; x++)
-                    {
-                        // 512 is the largest possible height before colours clamp
-                        int colorindex = (int)(Math.Max(Math.Min(1.0, copy.Get(x, y) / 512.0), 0.0) * (pallete - 1));
-                        bmp.SetPixel(x, y, colours[colorindex]);
-                    }
-                }
+                Bitmap bmp = TerrainToBitmap(gradientmap);
 
                 bmp.Save(filename, ImageFormat.Png);
             }
@@ -1212,30 +1208,8 @@ namespace OpenSim.Region.Terrain
             byte[] imageData = null;
             try
             {
-                Bitmap gradientmapLd = new Bitmap(gradientmap);
-
-                int pallete = gradientmapLd.Height;
-
-                Bitmap bmp = new Bitmap(heightmap.w, heightmap.h);
-                Color[] colours = new Color[pallete];
+                Bitmap bmp = TerrainToBitmap(gradientmap);
 
-                for (int i = 0; i < pallete; i++)
-                {
-                    colours[i] = gradientmapLd.GetPixel(0, i);
-                }
-
-                Channel copy = heightmap.Copy();
-                for (int y = 0; y < copy.h; y++)
-                {
-                    for (int x = 0; x < copy.w; x++)
-                    {
-                        // 512 is the largest possible height before colours clamp
-                        int colorindex = (int)(Math.Max(Math.Min(1.0, copy.Get(x, copy.h - y) / 512.0), 0.0) * (pallete - 1));
-                        bmp.SetPixel(x, y, colours[colorindex]);
-                    }
-                }
-
-                //bmp.Save(filename, System.Drawing.Imaging.ImageFormat.Png);
                 imageData = OpenJPEG.EncodeFromImage(bmp, true );
                 
             }
@@ -1246,5 +1220,33 @@ namespace OpenSim.Region.Terrain
 
             return imageData;
         }
+
+        private Bitmap TerrainToBitmap(string gradientmap)
+        {
+            Bitmap gradientmapLd = new Bitmap(gradientmap);
+
+            int pallete = gradientmapLd.Height;
+
+            Bitmap bmp = new Bitmap(heightmap.w, heightmap.h);
+            Color[] colours = new Color[pallete];
+
+            for (int i = 0; i < pallete; i++)
+            {
+                colours[i] = gradientmapLd.GetPixel(0, i);
+            }
+
+            Channel copy = heightmap.Copy();
+            for (int y = 0; y < copy.h; y++)
+            {
+                for (int x = 0; x < copy.w; x++)
+                {
+                    // 512 is the largest possible height before colours clamp
+                    int colorindex = (int)(Math.Max(Math.Min(1.0, copy.Get(x, y) / 512.0), 0.0) * (pallete - 1));
+                    bmp.SetPixel(x, y, colours[colorindex]);
+                }
+            }
+            return bmp;
+        }
+
     }
 }
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