**BREAKING CHANGE** Changing the way terrain is stored and used internally.

23 files changed, 299 insertions, 76 deletions

diff --git a/OpenSim.Config/SimConfigDb4o/obj/Debug/OpenSim.Config.SimConfigDb4o.dll b/OpenSim.Config/SimConfigDb4o/obj/Debug/OpenSim.Config.SimConfigDb4o.dll
new file mode 100644
index 0000000..ab27ace
--- /dev/null
+++ b/OpenSim.Config/SimConfigDb4o/obj/Debug/OpenSim.Config.SimConfigDb4o.dll
diff --git a/OpenSim.Config/SimConfigDb4o/obj/Debug/OpenSim.Config.SimConfigDb4o.pdb b/OpenSim.Config/SimConfigDb4o/obj/Debug/OpenSim.Config.SimConfigDb4o.pdb
new file mode 100644
index 0000000..d724d19
--- /dev/null
+++ b/OpenSim.Config/SimConfigDb4o/obj/Debug/OpenSim.Config.SimConfigDb4o.pdb
diff --git a/OpenSim.Config/SimConfigDb4o/obj/OpenSim.Config.SimConfigDb4o.csproj.FileList.txt b/OpenSim.Config/SimConfigDb4o/obj/OpenSim.Config.SimConfigDb4o.csproj.FileList.txt
new file mode 100644
index 0000000..2212b41
--- /dev/null
+++ b/OpenSim.Config/SimConfigDb4o/obj/OpenSim.Config.SimConfigDb4o.csproj.FileList.txt
@@ -0,0 +1,5 @@
+..\..\bin\OpenSim.Config.SimConfigDb4o.dll

+..\..\bin\OpenSim.Config.SimConfigDb4o.pdb

+obj\Debug\ResolveAssemblyReference.cache

+obj\Debug\OpenSim.Config.SimConfigDb4o.dll

+obj\Debug\OpenSim.Config.SimConfigDb4o.pdb

diff --git a/OpenSim.Framework/ILocalStorage.cs b/OpenSim.Framework/ILocalStorage.cs
index 2c45baa..bc11d8f 100644
--- a/OpenSim.Framework/ILocalStorage.cs
+++ b/OpenSim.Framework/ILocalStorage.cs
@@ -39,8 +39,8 @@ namespace OpenSim.Framework.Interfaces
         void StorePrim(PrimData prim);

         void RemovePrim(LLUUID primID);

         void LoadPrimitives(ILocalStorageReceiver receiver);

-        float[] LoadWorld();

-        void SaveMap(float[] heightmap);

+        float[,] LoadWorld();

+        void SaveMap(float[,] heightmap);

         void ShutDown();

     }

 

diff --git a/OpenSim.Physics/Manager/PhysicsScene.cs b/OpenSim.Physics/Manager/PhysicsScene.cs
index 0b3dfd2..25e2104 100644
--- a/OpenSim.Physics/Manager/PhysicsScene.cs
+++ b/OpenSim.Physics/Manager/PhysicsScene.cs
@@ -49,7 +49,7 @@ namespace OpenSim.Physics.Manager
 

         public abstract void GetResults();

 

-        public abstract void SetTerrain(float[] heightMap);

+        public abstract void SetTerrain(float[,] heightMap);

         

         public abstract void DeleteTerrain();

 

@@ -87,7 +87,7 @@ namespace OpenSim.Physics.Manager
             OpenSim.Framework.Console.MainConsole.Instance.WriteLine("NullPhysicsScene : GetResults()");

         }

 

-        public override void SetTerrain(float[] heightMap)

+        public override void SetTerrain(float[,] heightMap)

         {

             OpenSim.Framework.Console.MainConsole.Instance.WriteLine("NullPhysicsScene : SetTerrain({0} items)", heightMap.Length);

         }

diff --git a/OpenSim.Physics/OdePlugin/OdePlugin.cs b/OpenSim.Physics/OdePlugin/OdePlugin.cs
index 325e2fd..7c9c684 100644
--- a/OpenSim.Physics/OdePlugin/OdePlugin.cs
+++ b/OpenSim.Physics/OdePlugin/OdePlugin.cs
@@ -173,7 +173,7 @@ namespace OpenSim.Physics.OdePlugin
             }

         }

 

-        public override void SetTerrain(float[] heightMap)

+        public override void SetTerrain(float[,] heightMap)

         {

             for (int i = 0; i < 65536; i++)

             {

diff --git a/OpenSim.Physics/PhysXPlugin/PhysXPlugin.cs b/OpenSim.Physics/PhysXPlugin/PhysXPlugin.cs
index 10e92fe..74e7cb8 100644
--- a/OpenSim.Physics/PhysXPlugin/PhysXPlugin.cs
+++ b/OpenSim.Physics/PhysXPlugin/PhysXPlugin.cs
@@ -173,7 +173,7 @@ namespace OpenSim.Physics.PhysXPlugin
                         }

                 }

                 

-                public override void SetTerrain(float[] heightMap)

+                public override void SetTerrain(float[,] heightMap)

                 {

             if (this._heightMap != null)

             {

diff --git a/OpenSim.RegionServer/OpenSim.RegionServer.csproj b/OpenSim.RegionServer/OpenSim.RegionServer.csproj
index 73f523a..44d2635 100644
--- a/OpenSim.RegionServer/OpenSim.RegionServer.csproj
+++ b/OpenSim.RegionServer/OpenSim.RegionServer.csproj
@@ -1,4 +1,4 @@
-<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

   <PropertyGroup>

     <ProjectType>Local</ProjectType>

     <ProductVersion>8.0.50727</ProductVersion>

@@ -6,7 +6,8 @@
     <ProjectGuid>{632E1BFD-0000-0000-0000-000000000000}</ProjectGuid>

     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>

     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>

-    <ApplicationIcon></ApplicationIcon>

+    <ApplicationIcon>

+    </ApplicationIcon>

     <AssemblyKeyContainerName>

     </AssemblyKeyContainerName>

     <AssemblyName>OpenSim.RegionServer</AssemblyName>

@@ -15,9 +16,11 @@
     <DefaultTargetSchema>IE50</DefaultTargetSchema>

     <DelaySign>false</DelaySign>

     <OutputType>Library</OutputType>

-    <AppDesignerFolder></AppDesignerFolder>

+    <AppDesignerFolder>

+    </AppDesignerFolder>

     <RootNamespace>OpenSim.RegionServer</RootNamespace>

-    <StartupObject></StartupObject>

+    <StartupObject>

+    </StartupObject>

     <FileUpgradeFlags>

     </FileUpgradeFlags>

   </PropertyGroup>

@@ -28,7 +31,8 @@
     <ConfigurationOverrideFile>

     </ConfigurationOverrideFile>

     <DefineConstants>TRACE;DEBUG</DefineConstants>

-    <DocumentationFile></DocumentationFile>

+    <DocumentationFile>

+    </DocumentationFile>

     <DebugSymbols>True</DebugSymbols>

     <FileAlignment>4096</FileAlignment>

     <Optimize>False</Optimize>

@@ -37,7 +41,8 @@
     <RemoveIntegerChecks>False</RemoveIntegerChecks>

     <TreatWarningsAsErrors>False</TreatWarningsAsErrors>

     <WarningLevel>4</WarningLevel>

-    <NoWarn></NoWarn>

+    <NoWarn>

+    </NoWarn>

   </PropertyGroup>

   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">

     <AllowUnsafeBlocks>False</AllowUnsafeBlocks>

@@ -46,7 +51,8 @@
     <ConfigurationOverrideFile>

     </ConfigurationOverrideFile>

     <DefineConstants>TRACE</DefineConstants>

-    <DocumentationFile></DocumentationFile>

+    <DocumentationFile>

+    </DocumentationFile>

     <DebugSymbols>False</DebugSymbols>

     <FileAlignment>4096</FileAlignment>

     <Optimize>True</Optimize>

@@ -55,26 +61,27 @@
     <RemoveIntegerChecks>False</RemoveIntegerChecks>

     <TreatWarningsAsErrors>False</TreatWarningsAsErrors>

     <WarningLevel>4</WarningLevel>

-    <NoWarn></NoWarn>

+    <NoWarn>

+    </NoWarn>

   </PropertyGroup>

   <ItemGroup>

-    <Reference Include="System" >

+    <Reference Include="System">

       <HintPath>System.dll</HintPath>

       <Private>False</Private>

     </Reference>

-    <Reference Include="System.Xml" >

+    <Reference Include="System.Xml">

       <HintPath>System.Xml.dll</HintPath>

       <Private>False</Private>

     </Reference>

-    <Reference Include="libsecondlife.dll" >

+    <Reference Include="libsecondlife.dll">

       <HintPath>..\bin\libsecondlife.dll</HintPath>

       <Private>False</Private>

     </Reference>

-    <Reference Include="Axiom.MathLib.dll" >

+    <Reference Include="Axiom.MathLib.dll">

       <HintPath>..\bin\Axiom.MathLib.dll</HintPath>

       <Private>False</Private>

     </Reference>

-    <Reference Include="Db4objects.Db4o.dll" >

+    <Reference Include="Db4objects.Db4o.dll">

       <HintPath>..\bin\Db4objects.Db4o.dll</HintPath>

       <Private>False</Private>

     </Reference>

@@ -84,31 +91,35 @@
       <Name>OpenSim.Framework</Name>

       <Project>{8ACA2445-0000-0000-0000-000000000000}</Project>

       <Package>{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</Package>

-                        <Private>False</Private>

+      <Private>False</Private>

     </ProjectReference>

     <ProjectReference Include="..\OpenSim.Framework.Console\OpenSim.Framework.Console.csproj">

       <Name>OpenSim.Framework.Console</Name>

       <Project>{A7CD0630-0000-0000-0000-000000000000}</Project>

       <Package>{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</Package>

-                        <Private>False</Private>

+      <Private>False</Private>

     </ProjectReference>

     <ProjectReference Include="..\OpenSim.GenericConfig\Xml\OpenSim.GenericConfig.Xml.csproj">

       <Name>OpenSim.GenericConfig.Xml</Name>

       <Project>{E88EF749-0000-0000-0000-000000000000}</Project>

       <Package>{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</Package>

-                        <Private>False</Private>

+      <Private>False</Private>

     </ProjectReference>

     <ProjectReference Include="..\OpenSim.Physics\Manager\OpenSim.Physics.Manager.csproj">

       <Name>OpenSim.Physics.Manager</Name>

       <Project>{8BE16150-0000-0000-0000-000000000000}</Project>

       <Package>{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</Package>

-                        <Private>False</Private>

+      <Private>False</Private>

+    </ProjectReference>

+    <ProjectReference Include="..\OpenSim.Terrain.BasicTerrain\OpenSim.Terrain.BasicTerrain.csproj">

+      <Project>{FFD5951C-4002-4ACA-9ADF-68852357B94A}</Project>

+      <Name>OpenSim.Terrain.BasicTerrain</Name>

     </ProjectReference>

     <ProjectReference Include="..\Servers\OpenSim.Servers.csproj">

       <Name>OpenSim.Servers</Name>

       <Project>{8BB20F0A-0000-0000-0000-000000000000}</Project>

       <Package>{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</Package>

-                        <Private>False</Private>

+      <Private>False</Private>

     </ProjectReference>

   </ItemGroup>

   <ItemGroup>

@@ -222,4 +233,4 @@
     <PostBuildEvent>

     </PostBuildEvent>

   </PropertyGroup>

-</Project>

+</Project>
\ No newline at end of file
diff --git a/OpenSim.RegionServer/OpenSimMain.cs b/OpenSim.RegionServer/OpenSimMain.cs
index 7b0bd4b..b159af0 100644
--- a/OpenSim.RegionServer/OpenSimMain.cs
+++ b/OpenSim.RegionServer/OpenSimMain.cs
@@ -156,7 +156,7 @@ namespace OpenSim
 

             m_console.WriteLine("Main.cs:Startup() - Starting up messaging system");

             LocalWorld.PhysScene = this.physManager.GetPhysicsScene(this.m_physicsEngine); //should be reading from the config file what physics engine to use

-            LocalWorld.PhysScene.SetTerrain(LocalWorld.LandMap);

+            LocalWorld.PhysScene.SetTerrain(LocalWorld.Terrain.map);

 

             //should be passing a IGenericConfig object to these so they can read the config data they want from it

             GridServers.AssetServer.SetServerInfo(regionData.AssetURL, regionData.AssetSendKey);

diff --git a/OpenSim.RegionServer/world/Avatar.cs b/OpenSim.RegionServer/world/Avatar.cs
index 186fb5c..f507797 100644
--- a/OpenSim.RegionServer/world/Avatar.cs
+++ b/OpenSim.RegionServer/world/Avatar.cs
@@ -44,7 +44,7 @@ namespace OpenSim.world
             OpenSim.Framework.Console.MainConsole.Instance.WriteLine("Avatar.cs - Loading details from grid (DUMMY)");

             ControllingClient = TheClient;

             localid = 8880000 + (this.m_world._localNumber++);

-            Pos = new LLVector3(100.0f, 100.0f, m_world.LandMap[(int)Pos.Y * 256 + (int)Pos.X] + 1);

+            Pos = new LLVector3(100.0f, 100.0f, m_world.Terrain.map[(int)Pos.X, (int)Pos.Y] + 1.0f);

             visualParams = new byte[218];

             for (int i = 0; i < 218; i++)

             {

@@ -332,7 +332,7 @@ namespace OpenSim.world
 

         public override void LandRenegerated()

         {

-            Pos = new LLVector3(100.0f, 100.0f, this.m_world.LandMap[(int)Pos.Y * 256 + (int)Pos.X] + 50);

+            Pos = new LLVector3(100.0f, 100.0f, m_world.Terrain.map[(int)Pos.X, (int)Pos.Y] + 50.0f);

         }

     }

 

diff --git a/OpenSim.RegionServer/world/World.cs b/OpenSim.RegionServer/world/World.cs
index 5b7b3a1..c23ac2d 100644
--- a/OpenSim.RegionServer/world/World.cs
+++ b/OpenSim.RegionServer/world/World.cs
@@ -14,6 +14,7 @@ using OpenSim.Assets;
 using OpenSim.world.scripting;

 using OpenSim.RegionServer.world.scripting;

 using OpenSim.RegionServer.world.scripting.Scripts;

+using OpenSim.Terrain;

 

 namespace OpenSim.world

 {

@@ -23,8 +24,9 @@ namespace OpenSim.world
         public Dictionary<libsecondlife.LLUUID, Entity> Entities;

         public Dictionary<libsecondlife.LLUUID, Avatar> Avatars;

         public Dictionary<libsecondlife.LLUUID, Primitive> Prims;

-        public float[] LandMap;

+//        public float[] LandMap;

         public ScriptEngine Scripts;

+        public TerrainEngine Terrain; //TODO: Replace TerrainManager with this.

         public uint _localNumber = 0;

         private PhysicsScene phyScene;

         private float timeStep = 0.1f;

@@ -189,13 +191,13 @@ namespace OpenSim.world
 

         public void RegenerateTerrain()

         {

-            HeightmapGenHills hills = new HeightmapGenHills();

-            this.LandMap = hills.GenerateHeightmap(200, 4.0f, 80.0f, false);

+            Terrain.hills();

+

             lock (this.LockPhysicsEngine)

             {

-                this.phyScene.SetTerrain(this.LandMap);

+                this.phyScene.SetTerrain(Terrain.map);

             }

-            this.localStorage.SaveMap(this.LandMap);

+            this.localStorage.SaveMap(this.Terrain.map);

 

             foreach (SimClient client in m_clientThreads.Values)

             {

@@ -208,14 +210,14 @@ namespace OpenSim.world
             }

         }

 

-        public void RegenerateTerrain(float[] newMap)

+        public void RegenerateTerrain(float[,] newMap)

         {

-            this.LandMap = newMap;

+            this.Terrain.map = newMap;

             lock (this.LockPhysicsEngine)

             {

-                this.phyScene.SetTerrain(this.LandMap);

+                this.phyScene.SetTerrain(this.Terrain.map);

             }

-            this.localStorage.SaveMap(this.LandMap);

+            this.localStorage.SaveMap(this.Terrain.map);

 

             foreach (SimClient client in m_clientThreads.Values)

             {

@@ -234,9 +236,9 @@ namespace OpenSim.world
             {

                 lock (this.LockPhysicsEngine)

                 {

-                    this.phyScene.SetTerrain(this.LandMap);

+                    this.phyScene.SetTerrain(this.Terrain.map);

                 }

-                this.localStorage.SaveMap(this.LandMap);

+                this.localStorage.SaveMap(this.Terrain.map);

 

                 foreach (SimClient client in m_clientThreads.Values)

                 {

@@ -249,7 +251,7 @@ namespace OpenSim.world
 

         public void LoadWorldMap()

         {

-            LandMap = this.localStorage.LoadWorld();

+            Terrain.map = this.localStorage.LoadWorld();

         }

 

         public void LoadPrimsFromStorage()

@@ -288,7 +290,7 @@ namespace OpenSim.world
                     patches[2] = x + 2 + y * 16;

                     patches[3] = x + 3 + y * 16;

 

-                    Packet layerpack = TerrainManager.CreateLandPacket(LandMap, patches);

+                    Packet layerpack = TerrainManager.CreateLandPacket(Terrain.map, patches);

                     RemoteClient.OutPacket(layerpack);

                 }

             }

@@ -310,7 +312,7 @@ namespace OpenSim.world
             //patches[2] = patchx + 2 + patchy * 16;

             //patches[3] = patchx + 3 + patchy * 16;

 

-            Packet layerpack = TerrainManager.CreateLandPacket(LandMap, patches);

+            Packet layerpack = TerrainManager.CreateLandPacket(Terrain.map, patches);

             RemoteClient.OutPacket(layerpack);

         }

 

diff --git a/OpenSim.RegionServer/world/WorldPacketHandlers.cs b/OpenSim.RegionServer/world/WorldPacketHandlers.cs
index a155ffe..0643a4e 100644
--- a/OpenSim.RegionServer/world/WorldPacketHandlers.cs
+++ b/OpenSim.RegionServer/world/WorldPacketHandlers.cs
@@ -24,34 +24,16 @@ namespace OpenSim.world
                     // raise terrain

                     if (modify.ParcelData.Length > 0)

                     {

-                        int mody = (int)modify.ParcelData[0].North;

-                        int modx = (int)modify.ParcelData[0].West;

-                        lock (LandMap)

-                        {

-                            LandMap[(mody * 256) + modx - 1] += 0.05f;

-                            LandMap[(mody * 256) + modx] += 0.1f;

-                            LandMap[(mody * 256) + modx + 1] += 0.05f;

-                            LandMap[((mody + 1) * 256) + modx] += 0.05f;

-                            LandMap[((mody - 1) * 256) + modx] += 0.05f;

-                        }

-                        RegenerateTerrain(true, modx, mody);

+                        Terrain.raise(modify.ParcelData[0].North, modify.ParcelData[0].West, 10.0, 0.1);

+                        RegenerateTerrain(true, (int)modify.ParcelData[0].North, (int)modify.ParcelData[0].West);

                     }

                     break;

                 case 2:

                     //lower terrain

                     if (modify.ParcelData.Length > 0)

                     {

-                        int mody = (int)modify.ParcelData[0].North;

-                        int modx = (int)modify.ParcelData[0].West;

-                        lock (LandMap)

-                        {

-                            LandMap[(mody * 256) + modx - 1] -= 0.05f;

-                            LandMap[(mody * 256) + modx] -= 0.1f;

-                            LandMap[(mody * 256) + modx + 1] -= 0.05f;

-                            LandMap[((mody + 1) * 256) + modx] -= 0.05f;

-                            LandMap[((mody - 1) * 256) + modx] -= 0.05f;

-                        }

-                        RegenerateTerrain(true, modx, mody);

+                        Terrain.lower(modify.ParcelData[0].North, modify.ParcelData[0].West, 10.0, 0.1);

+                        RegenerateTerrain(true, (int)modify.ParcelData[0].North, (int)modify.ParcelData[0].West);

                     }

                     break;

             }

diff --git a/OpenSim.Terrain.BasicTerrain/Hills.cs b/OpenSim.Terrain.BasicTerrain/Hills.cs
new file mode 100644
index 0000000..40543a9
--- /dev/null
+++ b/OpenSim.Terrain.BasicTerrain/Hills.cs
@@ -0,0 +1,72 @@
+using System;

+using System.Collections.Generic;

+using System.Text;

+

+namespace OpenSim.Terrain.BasicTerrain

+{

+    static class Hills

+    {

+        /// <summary>

+        /// Generates a series of spheres which are then either max()'d or added together. Inspired by suggestion from jh.

+        /// </summary>

+        /// <remarks>3-Clause BSD Licensed</remarks>

+        /// <param name="number">The number of hills to generate</param>

+        /// <param name="scale_min">The minimum size of each hill</param>

+        /// <param name="scale_range">The maximum size of each hill</param>

+        /// <param name="island">Whether to bias hills towards the center of the map</param>

+        /// <param name="additive">Whether to add hills together or to pick the largest value</param>

+        /// <param name="noisy">Generates hill-shaped noise instead of consistent hills</param>

+        public static void hillsSpheres(float[,] map,int seed, int number, double scale_min, double scale_range, bool island, bool additive, bool noisy)

+        {

+            Random random = new Random(seed);

+            int w = map.GetLength(0);

+            int h = map.GetLength(1);

+            int x, y;

+            int i;

+

+            for (i = 0; i < number; i++)

+            {

+                double rx = Math.Min(255.0, random.NextDouble() * w);

+                double ry = Math.Min(255.0, random.NextDouble() * h);

+                double rand = random.NextDouble();

+

+                if (island)

+                {

+                    // Move everything towards the center

+                    rx -= w / 2;

+                    rx /= 2;

+                    rx += w / 2;

+

+                    ry -= h / 2;

+                    ry /= 2;

+                    ry += h / 2;

+                }

+

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

+                {

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

+                    {

+                        if (noisy)

+                            rand = random.NextDouble();

+

+                        double z = (scale_min + (scale_range * rand));

+                        z *= z;

+                        z -= ((x - rx) * (x - rx)) + ((y - ry) * (y - ry));

+

+                        if (z < 0)

+                            z = 0;

+

+                        if (additive)

+                        {

+                            map[x, y] += (float)z;

+                        }

+                        else

+                        {

+                            map[x, y] = (float)Math.Max(map[x, y], z);

+                        }

+                    }

+                }

+            }

+        }

+    }

+}

diff --git a/OpenSim.Terrain.BasicTerrain/OpenSim.Terrain.BasicTerrain.csproj b/OpenSim.Terrain.BasicTerrain/OpenSim.Terrain.BasicTerrain.csproj
index 4da1ede..2103902 100644
--- a/OpenSim.Terrain.BasicTerrain/OpenSim.Terrain.BasicTerrain.csproj
+++ b/OpenSim.Terrain.BasicTerrain/OpenSim.Terrain.BasicTerrain.csproj
@@ -33,7 +33,9 @@
     <Reference Include="System.Xml" />

   </ItemGroup>

   <ItemGroup>

-    <Compile Include="TerrainManager.cs" />

+    <Compile Include="Hills.cs" />

+    <Compile Include="RaiseLower.cs" />

+    <Compile Include="TerrainEngine.cs" />

     <Compile Include="Properties\AssemblyInfo.cs" />

   </ItemGroup>

   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />

diff --git a/OpenSim.Terrain.BasicTerrain/RaiseLower.cs b/OpenSim.Terrain.BasicTerrain/RaiseLower.cs
new file mode 100644
index 0000000..384bcc0
--- /dev/null
+++ b/OpenSim.Terrain.BasicTerrain/RaiseLower.cs
@@ -0,0 +1,91 @@
+using System;

+using System.Collections.Generic;

+using System.Text;

+

+namespace OpenSim.Terrain.BasicTerrain

+{

+    static class RaiseLower

+    {

+        /// <summary>

+        /// Raises land around the selection

+        /// </summary>

+        /// <param name="rx">The center the X coordinate of where you wish to raise the land</param>

+        /// <param name="ry">The center the Y coordinate of where you wish to raise the land</param>

+        /// <param name="size">The radius of the dimple</param>

+        /// <param name="amount">How much impact to add to the terrain (0..2 usually)</param>

+        public static void raise(float[,] map, double rx, double ry, double size, double amount)

+        {

+            raiseSphere(map, rx, ry, size, amount);

+        }

+

+        /// <summary>

+        /// Raises land in a sphere around the selection

+        /// </summary>

+        /// <param name="rx">The center the X coordinate of where you wish to raise the land</param>

+        /// <param name="ry">The center the Y coordinate of where you wish to raise the land</param>

+        /// <param name="size">The radius of the sphere dimple</param>

+        /// <param name="amount">How much impact to add to the terrain (0..2 usually)</param>

+        public static void raiseSphere(float[,] map, double rx, double ry, double size, double amount)

+        {

+            int x, y;

+            int w = map.GetLength(0);

+            int h = map.GetLength(1);

+

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

+            {

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

+                {

+                    double z = size;

+                    z *= z;

+                    z -= ((x - rx) * (x - rx)) + ((y - ry) * (y - ry));

+

+                    if (z < 0)

+                        z = 0;

+

+                    map[x, y] += (float)(z * amount);

+                }

+            }

+        }

+

+        /// <summary>

+        /// Lowers land in a sphere around the selection

+        /// </summary>

+        /// <param name="rx">The center the X coordinate of where you wish to lower the land</param>

+        /// <param name="ry">The center the Y coordinate of where you wish to lower the land</param>

+        /// <param name="size">The radius of the sphere dimple</param>

+        /// <param name="amount">How much impact to remove from the terrain (0..2 usually)</param>

+        public static void lower(float[,] map, double rx, double ry, double size, double amount)

+        {

+            lowerSphere(map, rx, ry, size, amount);

+        }

+

+        /// <summary>

+        /// Lowers land in a sphere around the selection

+        /// </summary>

+        /// <param name="rx">The center the X coordinate of where you wish to lower the land</param>

+        /// <param name="ry">The center the Y coordinate of where you wish to lower the land</param>

+        /// <param name="size">The radius of the sphere dimple</param>

+        /// <param name="amount">How much impact to remove from the terrain (0..2 usually)</param>

+        public static void lowerSphere(float[,] map, double rx, double ry, double size, double amount)

+        {

+            int x, y;

+            int w = map.GetLength(0);

+            int h = map.GetLength(1);

+

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

+            {

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

+                {

+                    double z = size;

+                    z *= z;

+                    z -= ((x - rx) * (x - rx)) + ((y - ry) * (y - ry));

+

+                    if (z < 0)

+                        z = 0;

+

+                    map[x, y] -= (float)(z * amount);

+                }

+            }

+        }

+    }

+}

diff --git a/OpenSim.Terrain.BasicTerrain/TerrainEngine.cs b/OpenSim.Terrain.BasicTerrain/TerrainEngine.cs
new file mode 100644
index 0000000..f805d18
--- /dev/null
+++ b/OpenSim.Terrain.BasicTerrain/TerrainEngine.cs
@@ -0,0 +1,64 @@
+using System;

+using System.Collections.Generic;

+using System.Text;

+using OpenSim.Terrain.BasicTerrain;

+

+namespace OpenSim.Terrain

+{

+    public class TerrainEngine

+    {

+        public float[,] map;

+        public float[,] water;

+        int w, h;

+

+        public TerrainEngine()

+        {

+            w = 256;

+            h = 256;

+            map = new float[w, h];

+            water = new float[w, h];

+

+        }

+

+        /// <summary>

+        /// Swaps the references between the height and water buffers to allow you to edit the water heightmap. Remember to swap back when you are done.

+        /// </summary>

+        public void swapWaterBuffer()

+        {

+            float[,] temp = map;

+            map = water;

+            water = temp;

+        }

+

+        /// <summary>

+        /// Raises land in a sphere around the specified coordinates

+        /// </summary>

+        /// <param name="rx">Center of the sphere on the X axis</param>

+        /// <param name="ry">Center of the sphere on the Y axis</param>

+        /// <param name="size">The radius of the sphere</param>

+        /// <param name="amount">Scale the height of the sphere by this amount (recommended 0..2)</param>

+        public void raise(double rx, double ry, double size, double amount)

+        {

+            lock (map)

+            {

+                RaiseLower.raiseSphere(this.map, rx, ry, size, amount);

+            }

+        }

+        public void lower(double rx, double ry, double size, double amount)

+        {

+            lock (map)

+            {

+                RaiseLower.lowerSphere(this.map, rx, ry, size, amount);

+            }

+        }

+

+        public void hills()

+        {

+            lock (map)

+            {

+                Hills.hillsSpheres(this.map, 1337, 200, 20, 40, true, true, false);

+            }

+        }

+

+    }

+}

diff --git a/OpenSim.Terrain.BasicTerrain/TerrainManager.cs b/OpenSim.Terrain.BasicTerrain/TerrainManager.cs
deleted file mode 100644
index 65880eb..0000000
--- a/OpenSim.Terrain.BasicTerrain/TerrainManager.cs
+++ /dev/null
@@ -1,11 +0,0 @@
-using System;

-using System.Collections.Generic;

-using System.Text;

-

-namespace OpenSim.Terrain

-{

-    public class TerrainManager

-    {

-

-    }

-}

diff --git a/OpenSim.Terrain.BasicTerrain/bin/Debug/OpenSim.Terrain.BasicTerrain.dll b/OpenSim.Terrain.BasicTerrain/bin/Debug/OpenSim.Terrain.BasicTerrain.dll
new file mode 100644
index 0000000..0cfa595
--- /dev/null
+++ b/OpenSim.Terrain.BasicTerrain/bin/Debug/OpenSim.Terrain.BasicTerrain.dll
diff --git a/OpenSim.Terrain.BasicTerrain/bin/Debug/OpenSim.Terrain.BasicTerrain.pdb b/OpenSim.Terrain.BasicTerrain/bin/Debug/OpenSim.Terrain.BasicTerrain.pdb
new file mode 100644
index 0000000..ce440c6
--- /dev/null
+++ b/OpenSim.Terrain.BasicTerrain/bin/Debug/OpenSim.Terrain.BasicTerrain.pdb
diff --git a/OpenSim.Terrain.BasicTerrain/obj/Debug/OpenSim.Terrain.BasicTerrain.dll b/OpenSim.Terrain.BasicTerrain/obj/Debug/OpenSim.Terrain.BasicTerrain.dll
new file mode 100644
index 0000000..0cfa595
--- /dev/null
+++ b/OpenSim.Terrain.BasicTerrain/obj/Debug/OpenSim.Terrain.BasicTerrain.dll
diff --git a/OpenSim.Terrain.BasicTerrain/obj/Debug/OpenSim.Terrain.BasicTerrain.pdb b/OpenSim.Terrain.BasicTerrain/obj/Debug/OpenSim.Terrain.BasicTerrain.pdb
new file mode 100644
index 0000000..ce440c6
--- /dev/null
+++ b/OpenSim.Terrain.BasicTerrain/obj/Debug/OpenSim.Terrain.BasicTerrain.pdb
diff --git a/OpenSim.Terrain.BasicTerrain/obj/OpenSim.Terrain.BasicTerrain.csproj.FileList.txt b/OpenSim.Terrain.BasicTerrain/obj/OpenSim.Terrain.BasicTerrain.csproj.FileList.txt
new file mode 100644
index 0000000..4728b51
--- /dev/null
+++ b/OpenSim.Terrain.BasicTerrain/obj/OpenSim.Terrain.BasicTerrain.csproj.FileList.txt
@@ -0,0 +1,5 @@
+bin\Debug\OpenSim.Terrain.BasicTerrain.dll

+bin\Debug\OpenSim.Terrain.BasicTerrain.pdb

+obj\Debug\ResolveAssemblyReference.cache

+obj\Debug\OpenSim.Terrain.BasicTerrain.dll

+obj\Debug\OpenSim.Terrain.BasicTerrain.pdb

diff --git a/bin/OpenSim.Terrain.BasicTerrain.dll b/bin/OpenSim.Terrain.BasicTerrain.dll
new file mode 100644
index 0000000..10061e0
--- /dev/null
+++ b/bin/OpenSim.Terrain.BasicTerrain.dll