/* * 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 OpenSimulator 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 System.Collections.Generic; using OpenMetaverse; using Mono.Addins; using OpenSim.Region.Framework.Interfaces; namespace OpenSim.Region.CoreModules.World.Wind.Plugins { [Extension(Path = "/OpenSim/WindModule", NodeName = "WindModel", Id = "SimpleRandomWind")] class SimpleRandomWind : Mono.Addins.TypeExtensionNode, IWindModelPlugin { private Vector2[] m_windSpeeds = new Vector2[16 * 16]; private float m_strength = 1.0f; private Random m_rndnums = new Random(Environment.TickCount); #region IPlugin Members public string Version { get { return "1.0.0.0"; } } public string Name { get { return "SimpleRandomWind"; } } public void Initialise() { } #endregion #region IDisposable Members public void Dispose() { m_windSpeeds = null; } #endregion #region IWindModelPlugin Members public void WindConfig(OpenSim.Region.Framework.Scenes.Scene scene, Nini.Config.IConfig windConfig) { if (windConfig != null) { if (windConfig.Contains("strength")) { m_strength = windConfig.GetFloat("strength", 1.0F); } } } public void WindUpdate(uint frame) { //Make sure our object is valid (we haven't been disposed of yet) if (m_windSpeeds != null) { for (int y = 0; y < 16; y++) { for (int x = 0; x < 16; x++) { m_windSpeeds[y * 16 + x].X = (float)(m_rndnums.NextDouble() * 2d - 1d); // -1 to 1 m_windSpeeds[y * 16 + x].Y = (float)(m_rndnums.NextDouble() * 2d - 1d); // -1 to 1 m_windSpeeds[y * 16 + x].X *= m_strength; m_windSpeeds[y * 16 + x].Y *= m_strength; } } } } public Vector3 WindSpeed(float fX, float fY, float fZ) { Vector3 windVector = new Vector3(0.0f, 0.0f, 0.0f); int x = (int)fX / 16; int y = (int)fY / 16; if (x < 0) x = 0; if (x > 15) x = 15; if (y < 0) y = 0; if (y > 15) y = 15; if (m_windSpeeds != null) { windVector.X = m_windSpeeds[y * 16 + x].X; windVector.Y = m_windSpeeds[y * 16 + x].Y; } return windVector; } public Vector2[] WindLLClientArray() { return m_windSpeeds; } public string Description { get { return "Provides a simple wind model that creates random wind of a given strength in 16m x 16m patches."; } } public System.Collections.Generic.Dictionary WindParams() { Dictionary Params = new Dictionary(); Params.Add("strength", "wind strength"); return Params; } public void WindParamSet(string param, float value) { switch (param) { case "strength": m_strength = value; break; } } public float WindParamGet(string param) { switch (param) { case "strength": return m_strength; default: throw new Exception(String.Format("Unknown {0} parameter {1}", this.Name, param)); } } #endregion } }