214 lines
7.2 KiB
C#
214 lines
7.2 KiB
C#
/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSimulator Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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using System.Collections.Generic;
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using Nini.Config;
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using OpenMetaverse;
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using OpenSim.Framework;
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using OpenSim.Region.Framework.Interfaces;
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using OpenSim.Region.Framework.Scenes;
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namespace OpenSim.Region.CoreModules
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{
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public class CloudModule : ICloudModule
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{
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// private static readonly log4net.ILog m_log
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// = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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private uint m_frame = 0;
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private int m_frameUpdateRate = 1000;
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private Random m_rndnums = new Random(Environment.TickCount);
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private Scene m_scene = null;
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private bool m_ready = false;
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private bool m_enabled = false;
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private float m_cloudDensity = 1.0F;
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private float[] cloudCover = new float[16 * 16];
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public void Initialise(Scene scene, IConfigSource config)
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{
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IConfig cloudConfig = config.Configs["Cloud"];
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if (cloudConfig != null)
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{
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m_enabled = cloudConfig.GetBoolean("enabled", false);
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m_cloudDensity = cloudConfig.GetFloat("density", 0.5F);
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m_frameUpdateRate = cloudConfig.GetInt("cloud_update_rate", 1000);
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}
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if (m_enabled)
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{
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m_scene = scene;
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scene.EventManager.OnNewClient += CloudsToClient;
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scene.RegisterModuleInterface<ICloudModule>(this);
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scene.EventManager.OnFrame += CloudUpdate;
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GenerateCloudCover();
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m_ready = true;
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}
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}
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public void PostInitialise()
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{
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}
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public void Close()
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{
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if (m_enabled)
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{
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m_ready = false;
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// Remove our hooks
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m_scene.EventManager.OnNewClient -= CloudsToClient;
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m_scene.EventManager.OnFrame -= CloudUpdate;
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}
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}
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public string Name
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{
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get { return "CloudModule"; }
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}
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public bool IsSharedModule
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{
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get { return false; }
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}
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public float CloudCover(int x, int y, int z)
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{
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float cover = 0f;
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x /= 16;
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y /= 16;
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if (x < 0) x = 0;
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if (x > 15) x = 15;
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if (y < 0) y = 0;
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if (y > 15) y = 15;
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if (cloudCover != null)
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{
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cover = cloudCover[y * 16 + x];
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}
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return cover;
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}
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private void UpdateCloudCover()
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{
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float[] newCover = new float[16 * 16];
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int rowAbove = new int();
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int rowBelow = new int();
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int columnLeft = new int();
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int columnRight = new int();
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for (int x = 0; x < 16; x++)
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{
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if (x == 0)
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{
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columnRight = x + 1;
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columnLeft = 15;
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}
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else if (x == 15)
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{
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columnRight = 0;
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columnLeft = x - 1;
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}
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else
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{
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columnRight = x + 1;
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columnLeft = x - 1;
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}
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for (int y = 0; y< 16; y++)
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{
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if (y == 0)
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{
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rowAbove = y + 1;
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rowBelow = 15;
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}
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else if (y == 15)
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{
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rowAbove = 0;
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rowBelow = y - 1;
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}
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else
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{
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rowAbove = y + 1;
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rowBelow = y - 1;
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}
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float neighborAverage = (cloudCover[rowBelow * 16 + columnLeft] +
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cloudCover[y * 16 + columnLeft] +
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cloudCover[rowAbove * 16 + columnLeft] +
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cloudCover[rowBelow * 16 + x] +
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cloudCover[rowAbove * 16 + x] +
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cloudCover[rowBelow * 16 + columnRight] +
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cloudCover[y * 16 + columnRight] +
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cloudCover[rowAbove * 16 + columnRight] +
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cloudCover[y * 16 + x]) / 9;
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newCover[y * 16 + x] = ((neighborAverage / m_cloudDensity) + 0.175f) % 1.0f;
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newCover[y * 16 + x] *= m_cloudDensity;
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}
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}
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Array.Copy(newCover, cloudCover, 16 * 16);
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}
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private void CloudUpdate()
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{
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if (((m_frame++ % m_frameUpdateRate) != 0) || !m_ready || (m_cloudDensity == 0))
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{
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return;
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}
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UpdateCloudCover();
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}
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public void CloudsToClient(IClientAPI client)
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{
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if (m_ready)
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{
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client.SendCloudData(cloudCover);
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}
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}
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/// <summary>
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/// Calculate the cloud cover over the region.
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/// </summary>
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private void GenerateCloudCover()
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{
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for (int y = 0; y < 16; y++)
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{
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for (int x = 0; x < 16; x++)
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{
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cloudCover[y * 16 + x] = (float)(m_rndnums.NextDouble()); // 0 to 1
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cloudCover[y * 16 + x] *= m_cloudDensity;
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}
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}
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}
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}
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}
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