Update svn properties.

3 files changed, 378 insertions, 378 deletions

diff --git a/OpenSim/Region/Environment/Modules/Terrain/FloodBrushes/RevertArea.cs b/OpenSim/Region/Environment/Modules/Terrain/FloodBrushes/RevertArea.cs
index 856405a..027c6a1 100644
--- a/OpenSim/Region/Environment/Modules/Terrain/FloodBrushes/RevertArea.cs
+++ b/OpenSim/Region/Environment/Modules/Terrain/FloodBrushes/RevertArea.cs
@@ -1,60 +1,60 @@
-/*

-* Copyright (c) Contributors, http://opensimulator.org/

-* See CONTRIBUTORS.TXT for a full list of copyright holders.

-*

-* Redistribution and use in source and binary forms, with or without

-* modification, are permitted provided that the following conditions are met:

-*     * Redistributions of source code must retain the above copyright

-*       notice, this list of conditions and the following disclaimer.

-*     * Redistributions in binary form must reproduce the above copyright

-*       notice, this list of conditions and the following disclaimer in the

-*       documentation and/or other materials provided with the distribution.

-*     * Neither the name of the OpenSim Project nor the

-*       names of its contributors may be used to endorse or promote products

-*       derived from this software without specific prior written permission.

-*

-* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY

-* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

-* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

-* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY

-* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

-* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

-* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

-* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

-* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

-* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

-* 

-*/

-using OpenSim.Region.Environment.Interfaces;

-

-namespace OpenSim.Region.Environment.Modules.Terrain.FloodBrushes

-{

-    public class RevertArea : ITerrainFloodEffect

-    {

-        ITerrainChannel m_revertmap;

-

-        public RevertArea(ITerrainChannel revertmap)

-        {

-            m_revertmap = revertmap;

-        }

-

-        #region ITerrainFloodEffect Members

-

-        public void FloodEffect(ITerrainChannel map, bool[,] fillArea, double strength)

-        {

-            int x, y;

-            for (x = 0; x < map.Width; x++)

-            {

-                for (y = 0; y < map.Height; y++)

-                {

-                    if (fillArea[x, y] == true)

-                    {

-                        map[x, y] = (map[x, y] * (1.0 - strength)) + (m_revertmap[x, y] * strength);

-                    }

-                }

-            }

-        }

-

-        #endregion

-    }

-}

+/*
+* Copyright (c) Contributors, http://opensimulator.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+using OpenSim.Region.Environment.Interfaces;
+
+namespace OpenSim.Region.Environment.Modules.Terrain.FloodBrushes
+{
+    public class RevertArea : ITerrainFloodEffect
+    {
+        ITerrainChannel m_revertmap;
+
+        public RevertArea(ITerrainChannel revertmap)
+        {
+            m_revertmap = revertmap;
+        }
+
+        #region ITerrainFloodEffect Members
+
+        public void FloodEffect(ITerrainChannel map, bool[,] fillArea, double strength)
+        {
+            int x, y;
+            for (x = 0; x < map.Width; x++)
+            {
+                for (y = 0; y < map.Height; y++)
+                {
+                    if (fillArea[x, y] == true)
+                    {
+                        map[x, y] = (map[x, y] * (1.0 - strength)) + (m_revertmap[x, y] * strength);
+                    }
+                }
+            }
+        }
+
+        #endregion
+    }
+}
diff --git a/OpenSim/Region/Environment/Modules/Terrain/PaintBrushes/RevertSphere.cs b/OpenSim/Region/Environment/Modules/Terrain/PaintBrushes/RevertSphere.cs
index e7ce68e..9d9c462 100644
--- a/OpenSim/Region/Environment/Modules/Terrain/PaintBrushes/RevertSphere.cs
+++ b/OpenSim/Region/Environment/Modules/Terrain/PaintBrushes/RevertSphere.cs
@@ -1,75 +1,75 @@
-/*

-* Copyright (c) Contributors, http://opensimulator.org/

-* See CONTRIBUTORS.TXT for a full list of copyright holders.

-*

-* Redistribution and use in source and binary forms, with or without

-* modification, are permitted provided that the following conditions are met:

-*     * Redistributions of source code must retain the above copyright

-*       notice, this list of conditions and the following disclaimer.

-*     * Redistributions in binary form must reproduce the above copyright

-*       notice, this list of conditions and the following disclaimer in the

-*       documentation and/or other materials provided with the distribution.

-*     * Neither the name of the OpenSim Project nor the

-*       names of its contributors may be used to endorse or promote products

-*       derived from this software without specific prior written permission.

-*

-* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY

-* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

-* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

-* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY

-* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

-* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

-* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

-* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

-* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

-* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

-* 

-*/

-using System;

-using OpenSim.Region.Environment.Interfaces;

-

-namespace OpenSim.Region.Environment.Modules.Terrain.PaintBrushes

-{

-    public class RevertSphere : ITerrainPaintableEffect

-    {

-        ITerrainChannel m_revertmap;

-

-        public RevertSphere(ITerrainChannel revertmap)

-        {

-            m_revertmap = revertmap;

-        }

-

-        #region ITerrainPaintableEffect Members

-

-        public void PaintEffect(ITerrainChannel map, double rx, double ry, double strength, double duration)

-        {

-            int x, y;

-            for (x = 0; x < map.Width; x++)

-            {

-                // Skip everything unlikely to be affected

-                if (Math.Abs(x - rx) > strength * 1.1)

-                    continue;

-

-                for (y = 0; y < map.Height; y++)

-                {

-                    // Skip everything unlikely to be affected

-                    if (Math.Abs(y - ry) > strength * 1.1)

-                        continue;

-

-                    // Calculate a sphere and add it to the heighmap

-                    double z = strength;

-                    z *= z;

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

-

-                    if (z > 0.0)

-                    {

-                        z *= duration;

-                        map[x, y] += (map[x, y] * (1.0 - z)) + (m_revertmap[x, y] * z);

-                    }

-                }

-            }

-        }

-

-        #endregion

-    }

-}

+/*
+* Copyright (c) Contributors, http://opensimulator.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+using System;
+using OpenSim.Region.Environment.Interfaces;
+
+namespace OpenSim.Region.Environment.Modules.Terrain.PaintBrushes
+{
+    public class RevertSphere : ITerrainPaintableEffect
+    {
+        ITerrainChannel m_revertmap;
+
+        public RevertSphere(ITerrainChannel revertmap)
+        {
+            m_revertmap = revertmap;
+        }
+
+        #region ITerrainPaintableEffect Members
+
+        public void PaintEffect(ITerrainChannel map, double rx, double ry, double strength, double duration)
+        {
+            int x, y;
+            for (x = 0; x < map.Width; x++)
+            {
+                // Skip everything unlikely to be affected
+                if (Math.Abs(x - rx) > strength * 1.1)
+                    continue;
+
+                for (y = 0; y < map.Height; y++)
+                {
+                    // Skip everything unlikely to be affected
+                    if (Math.Abs(y - ry) > strength * 1.1)
+                        continue;
+
+                    // Calculate a sphere and add it to the heighmap
+                    double z = strength;
+                    z *= z;
+                    z -= ((x - rx) * (x - rx)) + ((y - ry) * (y - ry));
+
+                    if (z > 0.0)
+                    {
+                        z *= duration;
+                        map[x, y] += (map[x, y] * (1.0 - z)) + (m_revertmap[x, y] * z);
+                    }
+                }
+            }
+        }
+
+        #endregion
+    }
+}
diff --git a/OpenSim/Region/Environment/Modules/Terrain/PaintBrushes/WeatherSphere.cs b/OpenSim/Region/Environment/Modules/Terrain/PaintBrushes/WeatherSphere.cs
index bede47e..cac3d35 100644
--- a/OpenSim/Region/Environment/Modules/Terrain/PaintBrushes/WeatherSphere.cs
+++ b/OpenSim/Region/Environment/Modules/Terrain/PaintBrushes/WeatherSphere.cs
@@ -1,243 +1,243 @@
-/*

-* Copyright (c) Contributors, http://opensimulator.org/

-* See CONTRIBUTORS.TXT for a full list of copyright holders.

-*

-* Redistribution and use in source and binary forms, with or without

-* modification, are permitted provided that the following conditions are met:

-*     * Redistributions of source code must retain the above copyright

-*       notice, this list of conditions and the following disclaimer.

-*     * Redistributions in binary form must reproduce the above copyright

-*       notice, this list of conditions and the following disclaimer in the

-*       documentation and/or other materials provided with the distribution.

-*     * Neither the name of the OpenSim Project nor the

-*       names of its contributors may be used to endorse or promote products

-*       derived from this software without specific prior written permission.

-*

-* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY

-* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

-* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

-* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY

-* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

-* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

-* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

-* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

-* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

-* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

-* 

-*/

-using OpenSim.Region.Environment.Interfaces;

-

-namespace OpenSim.Region.Environment.Modules.Terrain.PaintBrushes

-{

-    /// <summary>

-    /// Thermal Weathering Paint Brush

-    /// </summary>

-    public class WeatherSphere : ITerrainPaintableEffect

-    {

-        NeighbourSystem type = NeighbourSystem.Moore; // Parameter

-        double talus = 0.2; // Number of meters max difference before stop eroding. Tweakage required.

-

-        #region Supporting Functions

-        private enum NeighbourSystem

-        {

-            Moore,

-            VonNeumann

-        } ;

-

-        private int[] Neighbours(NeighbourSystem type, int index)

-        {

-            int[] coord = new int[2];

-

-            index++;

-

-            switch (type)

-            {

-                case NeighbourSystem.Moore:

-                    switch (index)

-                    {

-                        case 1:

-                            coord[0] = -1;

-                            coord[1] = -1;

-                            break;

-

-                        case 2:

-                            coord[0] = -0;

-                            coord[1] = -1;

-                            break;

-

-                        case 3:

-                            coord[0] = +1;

-                            coord[1] = -1;

-                            break;

-

-                        case 4:

-                            coord[0] = -1;

-                            coord[1] = -0;

-                            break;

-

-                        case 5:

-                            coord[0] = -0;

-                            coord[1] = -0;

-                            break;

-

-                        case 6:

-                            coord[0] = +1;

-                            coord[1] = -0;

-                            break;

-

-                        case 7:

-                            coord[0] = -1;

-                            coord[1] = +1;

-                            break;

-

-                        case 8:

-                            coord[0] = -0;

-                            coord[1] = +1;

-                            break;

-

-                        case 9:

-                            coord[0] = +1;

-                            coord[1] = +1;

-                            break;

-

-                        default:

-                            break;

-                    }

-                    break;

-

-                case NeighbourSystem.VonNeumann:

-                    switch (index)

-                    {

-                        case 1:

-                            coord[0] = 0;

-                            coord[1] = -1;

-                            break;

-

-                        case 2:

-                            coord[0] = -1;

-                            coord[1] = 0;

-                            break;

-

-                        case 3:

-                            coord[0] = +1;

-                            coord[1] = 0;

-                            break;

-

-                        case 4:

-                            coord[0] = 0;

-                            coord[1] = +1;

-                            break;

-

-                        case 5:

-                            coord[0] = -0;

-                            coord[1] = -0;

-                            break;

-

-                        default:

-                            break;

-                    }

-                    break;

-            }

-

-            return coord;

-        }

-

-        private double SphericalFactor(double x, double y, double rx, double ry, double size)

-        {

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

-            return z;

-        }

-

-        private double GetBilinearInterpolate(double x, double y, ITerrainChannel map)

-        {

-            int w = map.Width;

-            int h = map.Height;

-

-            if (x > w - 2.0)

-                x = w - 2.0;

-            if (y > h - 2.0)

-                y = h - 2.0;

-            if (x < 0.0)

-                x = 0.0;

-            if (y < 0.0)

-                y = 0.0;

-

-            int stepSize = 1;

-            double h00 = map[(int)x, (int)y];

-            double h10 = map[(int)x + stepSize, (int)y];

-            double h01 = map[(int)x, (int)y + stepSize];

-            double h11 = map[(int)x + stepSize, (int)y + stepSize];

-            double h1 = h00;

-            double h2 = h10;

-            double h3 = h01;

-            double h4 = h11;

-            double a00 = h1;

-            double a10 = h2 - h1;

-            double a01 = h3 - h1;

-            double a11 = h1 - h2 - h3 + h4;

-            double partialx = x - (int)x;

-            double partialz = y - (int)y;

-            double hi = a00 + (a10 * partialx) + (a01 * partialz) + (a11 * partialx * partialz);

-            return hi;

-        }

-

-        #endregion

-

-        #region ITerrainPaintableEffect Members

-

-        public void PaintEffect(ITerrainChannel map, double rx, double ry, double strength, double duration)

-        {

-            int x, y;

-

-            for (x = 0; x < map.Width; x++)

-            {

-                for (y = 0; y < map.Height; y++)

-                {

-                    double z = SphericalFactor(x, y, rx, ry, strength);

-

-                    if (z > 0) // add in non-zero amount 

-                    {

-                        int NEIGHBOUR_ME = 4;

-

-                        int NEIGHBOUR_MAX = type == NeighbourSystem.Moore ? 9 : 5;

-

-                        for (int j = 0; j < NEIGHBOUR_MAX; j++)

-                        {

-                            if (j != NEIGHBOUR_ME)

-                            {

-                                int[] coords = Neighbours(type, j);

-

-                                coords[0] += x;

-                                coords[1] += y;

-

-                                if (coords[0] > map.Width - 1)

-                                    continue;

-                                if (coords[1] > map.Height - 1)

-                                    continue;

-                                if (coords[0] < 0)

-                                    continue;

-                                if (coords[1] < 0)

-                                    continue;

-

-                                double heightF = map[x, y];

-                                double target = map[coords[0], coords[1]];

-

-                                if (target > heightF + talus)

-                                {

-                                    double calc = duration * ((target - heightF) - talus) * z;

-                                    heightF += calc;

-                                    target -= calc;

-                                }

-

-                                map[x, y] = heightF;

-                                map[coords[0], coords[1]] = target;

-                            }

-                        }

-                    }

-                }

-            }

-        }

-

-        #endregion

-    }

-}

+/*
+* Copyright (c) Contributors, http://opensimulator.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+using OpenSim.Region.Environment.Interfaces;
+
+namespace OpenSim.Region.Environment.Modules.Terrain.PaintBrushes
+{
+    /// <summary>
+    /// Thermal Weathering Paint Brush
+    /// </summary>
+    public class WeatherSphere : ITerrainPaintableEffect
+    {
+        NeighbourSystem type = NeighbourSystem.Moore; // Parameter
+        double talus = 0.2; // Number of meters max difference before stop eroding. Tweakage required.
+
+        #region Supporting Functions
+        private enum NeighbourSystem
+        {
+            Moore,
+            VonNeumann
+        } ;
+
+        private int[] Neighbours(NeighbourSystem type, int index)
+        {
+            int[] coord = new int[2];
+
+            index++;
+
+            switch (type)
+            {
+                case NeighbourSystem.Moore:
+                    switch (index)
+                    {
+                        case 1:
+                            coord[0] = -1;
+                            coord[1] = -1;
+                            break;
+
+                        case 2:
+                            coord[0] = -0;
+                            coord[1] = -1;
+                            break;
+
+                        case 3:
+                            coord[0] = +1;
+                            coord[1] = -1;
+                            break;
+
+                        case 4:
+                            coord[0] = -1;
+                            coord[1] = -0;
+                            break;
+
+                        case 5:
+                            coord[0] = -0;
+                            coord[1] = -0;
+                            break;
+
+                        case 6:
+                            coord[0] = +1;
+                            coord[1] = -0;
+                            break;
+
+                        case 7:
+                            coord[0] = -1;
+                            coord[1] = +1;
+                            break;
+
+                        case 8:
+                            coord[0] = -0;
+                            coord[1] = +1;
+                            break;
+
+                        case 9:
+                            coord[0] = +1;
+                            coord[1] = +1;
+                            break;
+
+                        default:
+                            break;
+                    }
+                    break;
+
+                case NeighbourSystem.VonNeumann:
+                    switch (index)
+                    {
+                        case 1:
+                            coord[0] = 0;
+                            coord[1] = -1;
+                            break;
+
+                        case 2:
+                            coord[0] = -1;
+                            coord[1] = 0;
+                            break;
+
+                        case 3:
+                            coord[0] = +1;
+                            coord[1] = 0;
+                            break;
+
+                        case 4:
+                            coord[0] = 0;
+                            coord[1] = +1;
+                            break;
+
+                        case 5:
+                            coord[0] = -0;
+                            coord[1] = -0;
+                            break;
+
+                        default:
+                            break;
+                    }
+                    break;
+            }
+
+            return coord;
+        }
+
+        private double SphericalFactor(double x, double y, double rx, double ry, double size)
+        {
+            double z = size * size - ((x - rx) * (x - rx) + (y - ry) * (y - ry));
+            return z;
+        }
+
+        private double GetBilinearInterpolate(double x, double y, ITerrainChannel map)
+        {
+            int w = map.Width;
+            int h = map.Height;
+
+            if (x > w - 2.0)
+                x = w - 2.0;
+            if (y > h - 2.0)
+                y = h - 2.0;
+            if (x < 0.0)
+                x = 0.0;
+            if (y < 0.0)
+                y = 0.0;
+
+            int stepSize = 1;
+            double h00 = map[(int)x, (int)y];
+            double h10 = map[(int)x + stepSize, (int)y];
+            double h01 = map[(int)x, (int)y + stepSize];
+            double h11 = map[(int)x + stepSize, (int)y + stepSize];
+            double h1 = h00;
+            double h2 = h10;
+            double h3 = h01;
+            double h4 = h11;
+            double a00 = h1;
+            double a10 = h2 - h1;
+            double a01 = h3 - h1;
+            double a11 = h1 - h2 - h3 + h4;
+            double partialx = x - (int)x;
+            double partialz = y - (int)y;
+            double hi = a00 + (a10 * partialx) + (a01 * partialz) + (a11 * partialx * partialz);
+            return hi;
+        }
+
+        #endregion
+
+        #region ITerrainPaintableEffect Members
+
+        public void PaintEffect(ITerrainChannel map, double rx, double ry, double strength, double duration)
+        {
+            int x, y;
+
+            for (x = 0; x < map.Width; x++)
+            {
+                for (y = 0; y < map.Height; y++)
+                {
+                    double z = SphericalFactor(x, y, rx, ry, strength);
+
+                    if (z > 0) // add in non-zero amount 
+                    {
+                        int NEIGHBOUR_ME = 4;
+
+                        int NEIGHBOUR_MAX = type == NeighbourSystem.Moore ? 9 : 5;
+
+                        for (int j = 0; j < NEIGHBOUR_MAX; j++)
+                        {
+                            if (j != NEIGHBOUR_ME)
+                            {
+                                int[] coords = Neighbours(type, j);
+
+                                coords[0] += x;
+                                coords[1] += y;
+
+                                if (coords[0] > map.Width - 1)
+                                    continue;
+                                if (coords[1] > map.Height - 1)
+                                    continue;
+                                if (coords[0] < 0)
+                                    continue;
+                                if (coords[1] < 0)
+                                    continue;
+
+                                double heightF = map[x, y];
+                                double target = map[coords[0], coords[1]];
+
+                                if (target > heightF + talus)
+                                {
+                                    double calc = duration * ((target - heightF) - talus) * z;
+                                    heightF += calc;
+                                    target -= calc;
+                                }
+
+                                map[x, y] = heightF;
+                                map[coords[0], coords[1]] = target;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        #endregion
+    }
+}