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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 System;
using System.Collections.Generic;
using libsecondlife;
using Nini.Config;
using OpenSim.Framework;
using OpenSim.Region.Environment.Interfaces;
using OpenSim.Region.Environment.Scenes;
namespace OpenSim.Region.Environment.Modules
{
public class SunModule : IRegionModule
{
//private static readonly log4net.ILog m_log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
private const double m_real_day = 24.0;
private const int m_default_frame = 100;
private int m_frame_mod;
private double m_day_length;
private int m_dilation;
private int m_frame;
private long m_start;
private Scene m_scene;
public void Initialise(Scene scene, IConfigSource config)
{
m_start = DateTime.Now.Ticks;
m_frame = 0;
// Just in case they don't have the stanzas
try
{
m_day_length = config.Configs["Sun"].GetDouble("day_length", m_real_day);
m_frame_mod = config.Configs["Sun"].GetInt("frame_rate", m_default_frame);
}
catch (Exception)
{
m_day_length = m_real_day;
m_frame_mod = m_default_frame;
}
m_dilation = (int) (m_real_day/m_day_length);
m_scene = scene;
scene.EventManager.OnFrame += SunUpdate;
scene.EventManager.OnNewClient += SunToClient;
}
public void PostInitialise()
{
}
public void Close()
{
}
public string Name
{
get { return "SunModule"; }
}
public bool IsSharedModule
{
get { return false; }
}
public void SunToClient(IClientAPI client)
{
client.SendSunPos(SunPos(HourOfTheDay()), new LLVector3(0, 0.0f, 10.0f));
}
public void SunUpdate()
{
if (m_frame < m_frame_mod)
{
m_frame++;
return;
}
// m_log.InfoFormat("[SUN]: I've got an update {0} => {1}", m_scene.RegionsInfo.RegionName, HourOfTheDay());
List<ScenePresence> avatars = m_scene.GetAvatars();
foreach (ScenePresence avatar in avatars)
{
avatar.ControllingClient.SendSunPos(SunPos(HourOfTheDay()), new LLVector3(0, 0.0f, 10.0f));
}
m_frame = 0;
}
// Hour of the Day figures out the hour of the day as a float.
// The intent here is that we seed hour of the day with real
// time when the simulator starts, then run time forward
// faster based on time dilation factor. This means that
// ticks don't get out of hand
private double HourOfTheDay()
{
long m_addticks = (DateTime.Now.Ticks - m_start)*m_dilation;
DateTime dt = new DateTime(m_start + m_addticks);
return (double) dt.Hour + ((double) dt.Minute/60.0);
}
private LLVector3 SunPos(double hour)
{
// now we have our radian position
double rad = (hour/m_real_day)*2*Math.PI - (Math.PI/2.0);
double z = Math.Sin(rad);
double x = Math.Cos(rad);
return new LLVector3((float) x, 0f, (float) z);
}
// TODO: clear this out. This is here so that I remember to
// figure out if we need those other packet fields that I've
// left out so far
//
// public void SendViewerTime(int phase)
// {
// Console.WriteLine("SunPhase: {0}", phase);
// SimulatorViewerTimeMessagePacket viewertime = new SimulatorViewerTimeMessagePacket();
// //viewertime.TimeInfo.SecPerDay = 86400;
// // viewertime.TimeInfo.SecPerYear = 31536000;
// viewertime.TimeInfo.SecPerDay = 1000;
// viewertime.TimeInfo.SecPerYear = 365000;
// viewertime.TimeInfo.SunPhase = 1;
// int sunPhase = (phase + 2)/2;
// if ((sunPhase < 6) || (sunPhase > 36))
// {
// viewertime.TimeInfo.SunDirection = new LLVector3(0f, 0.8f, -0.8f);
// Console.WriteLine("sending night");
// }
// else
// {
// if (sunPhase < 12)
// {
// sunPhase = 12;
// }
// sunPhase = sunPhase - 12;
//
// float yValue = 0.1f*(sunPhase);
// Console.WriteLine("Computed SunPhase: {0}, yValue: {1}", sunPhase, yValue);
// if (yValue > 1.2f)
// {
// yValue = yValue - 1.2f;
// }
// if (yValue > 1)
// {
// yValue = 1;
// }
// if (yValue < 0)
// {
// yValue = 0;
// }
// if (sunPhase < 14)
// {
// yValue = 1 - yValue;
// }
// if (sunPhase < 12)
// {
// yValue *= -1;
// }
// viewertime.TimeInfo.SunDirection = new LLVector3(0f, yValue, 0.3f);
// Console.WriteLine("sending sun update " + yValue);
// }
// viewertime.TimeInfo.SunAngVelocity = new LLVector3(0, 0.0f, 10.0f);
// viewertime.TimeInfo.UsecSinceStart = (ulong) Util.UnixTimeSinceEpoch();
// // OutPacket(viewertime);
// }
}
}
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