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- /*
- * 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.World.Terrain.PaintBrushes
- {
- public class FlattenSphere : ITerrainPaintableEffect
- {
- #region ITerrainPaintableEffect Members
- public void PaintEffect(ITerrainChannel map, double rx, double ry, double strength, double duration)
- {
- strength = TerrainUtil.MetersToSphericalStrength(strength);
- int x, y;
- double[,] tweak = new double[map.Width,map.Height];
- double area = strength;
- double step = strength / 4.0;
- double sum = 0.0;
- double step2 = 0.0;
- double avg = 0.0;
- // compute delta map
- 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
- {
- sum += map[x, y] * z;
- step2 += z;
- }
- }
- }
- avg = sum / step2;
- // blend in map
- for (x = 0; x < map.Width; x++)
- {
- for (y = 0; y < map.Height; y++)
- {
- double z = SphericalFactor(x, y, rx, ry, strength) * duration;
- if (z > 0) // add in non-zero amount
- {
- if (z > 1.0)
- z = 1.0;
- map[x, y] = (map[x, y] * (1.0 - z)) + (avg * z);
- }
- }
- }
- }
- #endregion
- 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;
- }
- }
- }
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