Update svn properties.

1 files changed, 339 insertions, 339 deletions

diff --git a/OpenSim/Region/Environment/Modules/Terrain/PaintBrushes/ErodeSphere.cs b/OpenSim/Region/Environment/Modules/Terrain/PaintBrushes/ErodeSphere.cs
index 804c642..d6f666d 100644
--- a/OpenSim/Region/Environment/Modules/Terrain/PaintBrushes/ErodeSphere.cs
+++ b/OpenSim/Region/Environment/Modules/Terrain/PaintBrushes/ErodeSphere.cs
@@ -1,339 +1,339 @@
-/*

-* 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;

-using System;

-

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

-{

-    /// <summary>

-    /// Hydraulic Erosion Brush

-    /// </summary>

-    public class ErodeSphere : ITerrainPaintableEffect

-    {

-        NeighbourSystem type = NeighbourSystem.Moore; // Parameter

-

-        double rainHeight = 1.0;

-        int rounds = 10;

-        double waterSaturation = 0.01; // Can carry 1% of water in height

-

-        #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;

-            // Using one 'rain' round for this, so skipping a useless loop

-            // Will need to adapt back in for the Flood brush

-

-            ITerrainChannel water = new TerrainChannel(map.Width, map.Height);

-            ITerrainChannel sediment = new TerrainChannel(map.Width, map.Height);

-

-            // Fill with rain

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

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

-                    water[x, y] = Math.Max(0.0, SphericalFactor(x, y, rx, ry, strength) * rainHeight * duration);

-

-            for (int i = 0; i < rounds; i++)

-            {

-                // Erode underlying terrain

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

-                {

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

-                    {

-                        double solConst = (1.0 / rounds);

-                        double sedDelta = water[x, y] * solConst;

-                        map[x, y] -= sedDelta;

-                        sediment[x, y] += sedDelta;

-                    }

-                }

-

-                // Move water

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

-                {

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

-                    {

-                        if (water[x, y] <= 0)

-                            continue;

-

-                        // Step 1. Calculate average of neighbours

-

-                        int neighbours = 0;

-                        double altitudeTotal = 0.0;

-                        double altitudeMe = map[x, y] + water[x, y];

-

-                        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;

-

-                                // Calculate total height of this neighbour

-                                double altitudeNeighbour = water[coords[0], coords[1]] + map[coords[0], coords[1]];

-

-                                // If it's greater than me...

-                                if (altitudeNeighbour - altitudeMe > 0)

-                                {

-                                    // Add it to our calculations

-                                    neighbours++;

-                                    altitudeTotal += altitudeNeighbour;

-                                }

-                            }

-                        }

-

-                        if (neighbours == 0)

-                            continue;

-

-                        double altitudeAvg = altitudeTotal / neighbours;

-

-                        // Step 2. Allocate water to neighbours.

-                        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;

-

-                                // Calculate our delta average

-                                double altitudeDelta = altitudeMe - altitudeAvg;

-

-                                // Calculate how much water we can move

-                                double waterDelta = Math.Min(water[x, y], altitudeDelta)

-                                    * (water[coords[0], coords[1]] + map[coords[0], coords[1]])

-                                    / altitudeTotal;

-

-                                double sedimentDelta = sediment[x, y] * (waterDelta / water[x, y]);

-

-                                if (sedimentDelta > 0)

-                                {

-                                    sediment[x, y] -= sedimentDelta;

-                                    sediment[coords[0], coords[1]] += sedimentDelta;

-                                }

-                            }

-                        }

-                    }

-                }

-

-                // Evaporate

-

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

-                {

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

-                    {

-                        water[x, y] *= 1.0 - (rainHeight / rounds);

-

-                        double waterCapacity = waterSaturation * water[x, y];

-

-                        double sedimentDeposit = Math.Max(0, sediment[x, y] - waterCapacity);

-                        sediment[x, y] -= sedimentDeposit;

-                        map[x, y] += sedimentDeposit;

-                    }

-                }

-            }

-

-            // Deposit any remainder (should be minimal)

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

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

-                    if (sediment[x, y] > 0)

-                        map[x, y] += sediment[x, y];

-        }

-

-        #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;
+using System;
+
+namespace OpenSim.Region.Environment.Modules.Terrain.PaintBrushes
+{
+    /// <summary>
+    /// Hydraulic Erosion Brush
+    /// </summary>
+    public class ErodeSphere : ITerrainPaintableEffect
+    {
+        NeighbourSystem type = NeighbourSystem.Moore; // Parameter
+
+        double rainHeight = 1.0;
+        int rounds = 10;
+        double waterSaturation = 0.01; // Can carry 1% of water in height
+
+        #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;
+            // Using one 'rain' round for this, so skipping a useless loop
+            // Will need to adapt back in for the Flood brush
+
+            ITerrainChannel water = new TerrainChannel(map.Width, map.Height);
+            ITerrainChannel sediment = new TerrainChannel(map.Width, map.Height);
+
+            // Fill with rain
+            for (x = 0; x < water.Width; x++)
+                for (y = 0; y < water.Height; y++)
+                    water[x, y] = Math.Max(0.0, SphericalFactor(x, y, rx, ry, strength) * rainHeight * duration);
+
+            for (int i = 0; i < rounds; i++)
+            {
+                // Erode underlying terrain
+                for (x = 0; x < water.Width; x++)
+                {
+                    for (y = 0; y < water.Height; y++)
+                    {
+                        double solConst = (1.0 / rounds);
+                        double sedDelta = water[x, y] * solConst;
+                        map[x, y] -= sedDelta;
+                        sediment[x, y] += sedDelta;
+                    }
+                }
+
+                // Move water
+                for (x = 0; x < water.Width; x++)
+                {
+                    for (y = 0; y < water.Height; y++)
+                    {
+                        if (water[x, y] <= 0)
+                            continue;
+
+                        // Step 1. Calculate average of neighbours
+
+                        int neighbours = 0;
+                        double altitudeTotal = 0.0;
+                        double altitudeMe = map[x, y] + water[x, y];
+
+                        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;
+
+                                // Calculate total height of this neighbour
+                                double altitudeNeighbour = water[coords[0], coords[1]] + map[coords[0], coords[1]];
+
+                                // If it's greater than me...
+                                if (altitudeNeighbour - altitudeMe > 0)
+                                {
+                                    // Add it to our calculations
+                                    neighbours++;
+                                    altitudeTotal += altitudeNeighbour;
+                                }
+                            }
+                        }
+
+                        if (neighbours == 0)
+                            continue;
+
+                        double altitudeAvg = altitudeTotal / neighbours;
+
+                        // Step 2. Allocate water to neighbours.
+                        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;
+
+                                // Calculate our delta average
+                                double altitudeDelta = altitudeMe - altitudeAvg;
+
+                                // Calculate how much water we can move
+                                double waterDelta = Math.Min(water[x, y], altitudeDelta)
+                                    * (water[coords[0], coords[1]] + map[coords[0], coords[1]])
+                                    / altitudeTotal;
+
+                                double sedimentDelta = sediment[x, y] * (waterDelta / water[x, y]);
+
+                                if (sedimentDelta > 0)
+                                {
+                                    sediment[x, y] -= sedimentDelta;
+                                    sediment[coords[0], coords[1]] += sedimentDelta;
+                                }
+                            }
+                        }
+                    }
+                }
+
+                // Evaporate
+
+                for (x = 0; x < water.Width; x++)
+                {
+                    for (y = 0; y < water.Height; y++)
+                    {
+                        water[x, y] *= 1.0 - (rainHeight / rounds);
+
+                        double waterCapacity = waterSaturation * water[x, y];
+
+                        double sedimentDeposit = Math.Max(0, sediment[x, y] - waterCapacity);
+                        sediment[x, y] -= sedimentDeposit;
+                        map[x, y] += sedimentDeposit;
+                    }
+                }
+            }
+
+            // Deposit any remainder (should be minimal)
+            for (x = 0; x < water.Width; x++)
+                for (y = 0; y < water.Height; y++)
+                    if (sediment[x, y] > 0)
+                        map[x, y] += sediment[x, y];
+        }
+
+        #endregion
+    }
+}