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-rw-r--r--OpenSim/Region/Environment/Modules/SunModule.cs195
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diff --git a/OpenSim/Region/Environment/Modules/SunModule.cs b/OpenSim/Region/Environment/Modules/SunModule.cs
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1/*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSim Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28using System;
29using System.Collections.Generic;
30using libsecondlife;
31using Nini.Config;
32using OpenSim.Framework;
33using OpenSim.Region.Environment.Interfaces;
34using OpenSim.Region.Environment.Scenes;
35
36namespace OpenSim.Region.Environment.Modules
37{
38 public class SunModule : IRegionModule
39 {
40 //private static readonly log4net.ILog m_log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
41
42 private const double m_real_day = 24.0;
43 private const int m_default_frame = 100;
44 private int m_frame_mod;
45 private double m_day_length;
46 private int m_dilation;
47 private int m_frame;
48 private long m_start;
49
50 private Scene m_scene;
51
52 public void Initialise(Scene scene, IConfigSource config)
53 {
54 m_start = DateTime.Now.Ticks;
55 m_frame = 0;
56
57 // Just in case they don't have the stanzas
58 try
59 {
60 m_day_length = config.Configs["Sun"].GetDouble("day_length", m_real_day);
61 m_frame_mod = config.Configs["Sun"].GetInt("frame_rate", m_default_frame);
62 }
63 catch (Exception)
64 {
65 m_day_length = m_real_day;
66 m_frame_mod = m_default_frame;
67 }
68
69 m_dilation = (int) (m_real_day/m_day_length);
70 m_scene = scene;
71 scene.EventManager.OnFrame += SunUpdate;
72 scene.EventManager.OnNewClient += SunToClient;
73 }
74
75 public void PostInitialise()
76 {
77 }
78
79 public void Close()
80 {
81 }
82
83 public string Name
84 {
85 get { return "SunModule"; }
86 }
87
88 public bool IsSharedModule
89 {
90 get { return false; }
91 }
92
93 public void SunToClient(IClientAPI client)
94 {
95 client.SendSunPos(SunPos(HourOfTheDay()), new LLVector3(0, 0.0f, 10.0f));
96 }
97
98 public void SunUpdate()
99 {
100 if (m_frame < m_frame_mod)
101 {
102 m_frame++;
103 return;
104 }
105 // m_log.InfoFormat("[SUN]: I've got an update {0} => {1}", m_scene.RegionsInfo.RegionName, HourOfTheDay());
106 List<ScenePresence> avatars = m_scene.GetAvatars();
107 foreach (ScenePresence avatar in avatars)
108 {
109 avatar.ControllingClient.SendSunPos(SunPos(HourOfTheDay()), new LLVector3(0, 0.0f, 10.0f));
110 }
111 // set estate settings for region access to sun position
112 m_scene.RegionInfo.EstateSettings.sunPosition = SunPos(HourOfTheDay());
113
114 m_frame = 0;
115 }
116
117 // Hour of the Day figures out the hour of the day as a float.
118 // The intent here is that we seed hour of the day with real
119 // time when the simulator starts, then run time forward
120 // faster based on time dilation factor. This means that
121 // ticks don't get out of hand
122 private double HourOfTheDay()
123 {
124 long m_addticks = (DateTime.Now.Ticks - m_start)*m_dilation;
125 DateTime dt = new DateTime(m_start + m_addticks);
126 return (double) dt.Hour + ((double) dt.Minute/60.0);
127 }
128
129 private LLVector3 SunPos(double hour)
130 {
131 // now we have our radian position
132 double rad = (hour/m_real_day)*2*Math.PI - (Math.PI/2.0);
133 double z = Math.Sin(rad);
134 double x = Math.Cos(rad);
135 return new LLVector3((float) x, 0f, (float) z);
136 }
137
138 // TODO: clear this out. This is here so that I remember to
139 // figure out if we need those other packet fields that I've
140 // left out so far
141 //
142 // public void SendViewerTime(int phase)
143 // {
144 // Console.WriteLine("SunPhase: {0}", phase);
145 // SimulatorViewerTimeMessagePacket viewertime = new SimulatorViewerTimeMessagePacket();
146 // //viewertime.TimeInfo.SecPerDay = 86400;
147 // // viewertime.TimeInfo.SecPerYear = 31536000;
148 // viewertime.TimeInfo.SecPerDay = 1000;
149 // viewertime.TimeInfo.SecPerYear = 365000;
150 // viewertime.TimeInfo.SunPhase = 1;
151 // int sunPhase = (phase + 2)/2;
152 // if ((sunPhase < 6) || (sunPhase > 36))
153 // {
154 // viewertime.TimeInfo.SunDirection = new LLVector3(0f, 0.8f, -0.8f);
155 // Console.WriteLine("sending night");
156 // }
157 // else
158 // {
159 // if (sunPhase < 12)
160 // {
161 // sunPhase = 12;
162 // }
163 // sunPhase = sunPhase - 12;
164 //
165 // float yValue = 0.1f*(sunPhase);
166 // Console.WriteLine("Computed SunPhase: {0}, yValue: {1}", sunPhase, yValue);
167 // if (yValue > 1.2f)
168 // {
169 // yValue = yValue - 1.2f;
170 // }
171 // if (yValue > 1)
172 // {
173 // yValue = 1;
174 // }
175 // if (yValue < 0)
176 // {
177 // yValue = 0;
178 // }
179 // if (sunPhase < 14)
180 // {
181 // yValue = 1 - yValue;
182 // }
183 // if (sunPhase < 12)
184 // {
185 // yValue *= -1;
186 // }
187 // viewertime.TimeInfo.SunDirection = new LLVector3(0f, yValue, 0.3f);
188 // Console.WriteLine("sending sun update " + yValue);
189 // }
190 // viewertime.TimeInfo.SunAngVelocity = new LLVector3(0, 0.0f, 10.0f);
191 // viewertime.TimeInfo.UsecSinceStart = (ulong) Util.UnixTimeSinceEpoch();
192 // // OutPacket(viewertime);
193 // }
194 }
195}
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