1 files changed, 125 insertions, 0 deletions

diff --git a/OpenSim/Region/CoreModules/World/Terrain/Effects/CookieCutter.cs b/OpenSim/Region/CoreModules/World/Terrain/Effects/CookieCutter.cs
new file mode 100644
index 0000000..cb8112c
--- /dev/null
+++ b/OpenSim/Region/CoreModules/World/Terrain/Effects/CookieCutter.cs
@@ -0,0 +1,125 @@
+/*
+ * 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.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+using OpenSim.Region.CoreModules.World.Terrain.PaintBrushes;
+
+namespace OpenSim.Region.CoreModules.World.Terrain.Effects
+{
+    internal class CookieCutter : ITerrainEffect
+    {
+        #region ITerrainEffect Members
+
+        public void RunEffect(ITerrainChannel map)
+        {
+            ITerrainPaintableEffect eroder = new WeatherSphere();
+
+            bool[,] cliffMask = new bool[map.Width,map.Height];
+            bool[,] channelMask = new bool[map.Width,map.Height];
+            bool[,] smoothMask = new bool[map.Width,map.Height];
+            bool[,] allowMask = new bool[map.Width,map.Height];
+
+            Console.WriteLine("S1");
+
+            // Step one, generate rough mask
+            int x, y;
+            for (x = 0; x < map.Width; x++)
+            {
+                for (y = 0; y < map.Height; y++)
+                {
+                    Console.Write(".");
+                    smoothMask[x, y] = true;
+                    allowMask[x,y] = true;
+
+                    // Start underwater
+                    map[x, y] = TerrainUtil.PerlinNoise2D(x, y, 3, 0.25) * 5;
+                    // Add a little height. (terrain should now be above water, mostly.)
+                    map[x, y] += 20;
+
+                    const int channelsX = 4;
+                    int channelWidth = (map.Width / channelsX / 4);
+                    const int channelsY = 4;
+                    int channelHeight = (map.Height / channelsY / 4);
+
+                    SetLowerChannel(map, cliffMask, channelMask, x, y, channelsX, channelWidth, map.Width, x);
+                    SetLowerChannel(map, cliffMask, channelMask, x, y, channelsY, channelHeight, map.Height, y);
+                }
+            }
+
+            Console.WriteLine("S2");
+            //smooth.FloodEffect(map, smoothMask, 4.0);
+
+            Console.WriteLine("S3");
+            for (x = 0; x < map.Width; x++)
+            {
+                for (y = 0; y < map.Height; y++)
+                {
+                    if (cliffMask[x, y])
+                        eroder.PaintEffect(map, allowMask, x, y, -1, 4, 0.1);
+                }
+            }
+
+            for (x = 0; x < map.Width; x += 2)
+            {
+                for (y = 0; y < map.Height; y += 2)
+                {
+                    if (map[x, y] < 0.1)
+                        map[x, y] = 0.1;
+                    if (map[x, y] > 256)
+                        map[x, y] = 256;
+                }
+            }
+            //smooth.FloodEffect(map, smoothMask, 4.0);
+        }
+
+        #endregion
+
+        private static void SetLowerChannel(ITerrainChannel map, bool[,] cliffMask, bool[,] channelMask, int x, int y, int numChannels, int channelWidth,
+                                            int mapSize, int rp)
+        {
+            for (int i = 0; i < numChannels; i++)
+            {
+                double distanceToLine = Math.Abs(rp - ((mapSize / numChannels) * i));
+
+                if (distanceToLine < channelWidth)
+                {
+                    if (channelMask[x, y])
+                        return;
+
+                    // Remove channels
+                    map[x, y] -= 10;
+                    channelMask[x, y] = true;
+                }
+                if (distanceToLine < 1)
+                {
+                    cliffMask[x, y] = true;
+                }
+            }
+        }
+    }
+}