brought zircon branch into trunk

1 files changed, 0 insertions, 149 deletions

diff --git a/src/HeightMapGenHills.cs b/src/HeightMapGenHills.cs
deleted file mode 100644
index e7589af..0000000
--- a/src/HeightMapGenHills.cs
+++ /dev/null
@@ -1,149 +0,0 @@
-/*

-* Copyright (c) OpenSim project, http://sim.opensecondlife.org/

-*

-* 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 <organization> 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 <copyright holder> ``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 <copyright holder> 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;

-

-namespace OpenSim

-{

-    public class HeightmapGenHills

-    {

-        private Random Rand = new Random();

-        private int NumHills;

-        private float HillMin;

-        private float HillMax;

-        private bool Island;

-        private float[] heightmap;

-

-        public float[] GenerateHeightmap(int numHills, float hillMin, float hillMax, bool island)

-        {

-            NumHills = numHills;

-            HillMin = hillMin;

-            HillMax = hillMax;

-            Island = island;

-

-            heightmap = new float[256 * 256];

-

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

-            {

-                AddHill();

-            }

-

-            Normalize();

-

-            return heightmap;

-        }

-

-        private void AddHill()

-        {

-            float x, y;

-            float radius = RandomRange(HillMin, HillMax);

-

-            if (Island)

-            {

-                // Which direction from the center of the map the hill is placed

-                float theta = RandomRange(0, 6.28f);

-

-                // How far from the center of the map to place the hill. The radius

-                // is subtracted from the range to prevent any part of the hill from

-                // reaching the edge of the map

-                float distance = RandomRange(radius / 2.0f, 128.0f - radius);

-

-                x = 128.0f + (float)Math.Cos(theta) * distance;

-                y = 128.0f + (float)Math.Sin(theta) * distance;

-            }

-            else

-            {

-                x = RandomRange(-radius, 256.0f + radius);

-                y = RandomRange(-radius, 256.0f + radius);

-            }

-

-            float radiusSq = radius * radius;

-            float distSq;

-            float height;

-

-            int xMin = (int)(x - radius) - 1;

-            int xMax = (int)(x + radius) + 1;

-            if (xMin < 0) xMin = 0;

-            if (xMax > 255) xMax = 255;

-

-            int yMin = (int)(y - radius) - 1;

-            int yMax = (int)(y + radius) + 1;

-            if (yMin < 0) yMin = 0;

-            if (yMax > 255) yMax = 255;

-

-            // Loop through each affected cell and determine the height at that point

-            for (int v = yMin; v <= yMax; ++v)

-            {

-                float fv = (float)v;

-

-                for (int h = xMin; h <= xMax; ++h)

-                {

-                    float fh = (float)h;

-

-                    // Determine how far from the center of this hill this point is

-                    distSq = (x - fh) * (x - fh) + (y - fv) * (y - fv);

-                    height = radiusSq - distSq;

-

-                    // Don't add negative hill values

-                    if (height > 0.0f) heightmap[h + v * 256] += height;

-                }

-            }

-        }

-

-        private void Normalize()

-        {

-            float min = heightmap[0];

-            float max = heightmap[0];

-

-            for (int x = 0; x < 256; x++)

-            {

-                for (int y = 0; y < 256; y++)

-                {

-                    if (heightmap[x + y * 256] < min) min = heightmap[x + y * 256];

-                    if (heightmap[x + y * 256] > max) max = heightmap[x + y * 256];

-                }

-            }

-

-            // Avoid a rare divide by zero

-            if (min != max)

-            {

-                for (int x = 0; x < 256; x++)

-                {

-                    for (int y = 0; y < 256; y++)

-                    {

-                        heightmap[x + y * 256] = ((heightmap[x + y * 256] - min) / (max - min)) * (HillMax - HillMin);

-                    }

-                }

-            }

-        }

-

-        private float RandomRange(float min, float max)

-        {

-            return (float)Rand.NextDouble() * (max - min) + min;

-        }

-    }

-}