* Committing file loaders - forgot yesterday.

1 files changed, 89 insertions, 0 deletions

diff --git a/OpenSim/Region/Environment/Modules/Terrain/FileLoaders/Terragen.cs b/OpenSim/Region/Environment/Modules/Terrain/FileLoaders/Terragen.cs
new file mode 100644
index 0000000..2443173
--- /dev/null
+++ b/OpenSim/Region/Environment/Modules/Terrain/FileLoaders/Terragen.cs
@@ -0,0 +1,89 @@
+using System;

+using System.Collections.Generic;

+using System.Text;

+using System.IO;

+using OpenSim.Region.Environment.Modules.Terrain;

+using OpenSim.Region.Environment.Interfaces;

+

+namespace OpenSim.Region.Environment.Modules.Terrain.FileLoaders

+{

+    /// <summary>

+    /// Terragen File Format Loader

+    /// Built from specification at

+    /// http://www.planetside.co.uk/terragen/dev/tgterrain.html

+    /// </summary>

+    class Terragen : ITerrainLoader

+    {

+        private static readonly log4net.ILog m_log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

+

+        #region ITerrainLoader Members

+

+        public ITerrainChannel LoadFile(string filename)

+        {

+            TerrainChannel retval = new TerrainChannel();

+

+            FileInfo file = new FileInfo(filename);

+            FileStream s = file.Open(FileMode.Open, FileAccess.Read);

+            BinaryReader bs = new BinaryReader(s);

+

+            bool eof = false;

+

+            if (ASCIIEncoding.ASCII.GetString(bs.ReadBytes(16)) == "TERRAGENTERRAIN")

+            {

+                // Terragen file

+                while (eof == false)

+                {

+                    int w = 256;

+                    int h = 256;

+                    string tmp = ASCIIEncoding.ASCII.GetString(bs.ReadBytes(4));

+                    switch (tmp)

+                    {

+                        case "SIZE":

+                            int sztmp = bs.ReadInt16() + 1;

+                            w = sztmp;

+                            h = sztmp;

+                            bs.ReadInt16();

+                            break;

+                        case "XPTS":

+                            w = bs.ReadInt16();

+                            bs.ReadInt16();

+                            break;

+                        case "YPTS":

+                            h = bs.ReadInt16();

+                            bs.ReadInt16();

+                            break;

+                        case "ALTW":

+                            eof = true;

+                            Int16 heightScale = bs.ReadInt16();

+                            Int16 baseHeight = bs.ReadInt16();

+                            retval = new TerrainChannel(w, h);

+                            int x, y;

+                            for (x = 0; x < w; x++)

+                            {

+                                for (y = 0; y < h; y++)

+                                {

+                                    retval[x, y] = (double)baseHeight + (double)bs.ReadInt16() * (double)heightScale / 65536.0;

+                                }

+                            }

+                            break;

+                        default:

+                            bs.ReadInt32();

+                            break;

+                    }

+                }

+            }

+

+            bs.Close();

+            s.Close();

+

+            return retval;

+        }

+

+        public void SaveFile(string filename)

+        {

+            throw new NotImplementedException();

+        }

+

+        #endregion

+    }

+}