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1/*
2* Copyright (c) Contributors, http://www.openmetaverse.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 libsecondlife;
30using libsecondlife.Packets;
31using System.Collections.Generic;
32using System.Text;
33using System.Reflection;
34using System.IO;
35using System.Threading;
36using OpenSim.Physics.Manager;
37using OpenSim.Framework.Interfaces;
38using OpenSim.Framework.Types;
39using OpenSim.Framework.Inventory;
40using OpenSim.Terrain;
41using OpenSim.Caches;
42
43namespace OpenSim.Region.Scenes
44{
45 public abstract class SceneBase : IWorld
46 {
47 public Dictionary<libsecondlife.LLUUID, Entity> Entities;
48 protected Dictionary<uint, IClientAPI> m_clientThreads;
49 protected ulong m_regionHandle;
50 protected string m_regionName;
51 protected RegionInfo m_regInfo;
52
53 public TerrainEngine Terrain;
54
55 public string m_datastore;
56 public ILocalStorage localStorage;
57
58 protected object m_syncRoot = new object();
59 private uint m_nextLocalId = 8880000;
60 protected AssetCache assetCache;
61
62 #region Update Methods
63 /// <summary>
64 /// Normally called once every frame/tick to let the world preform anything required (like running the physics simulation)
65 /// </summary>
66 public abstract void Update();
67
68 #endregion
69
70 #region Terrain Methods
71
72 /// <summary>
73 /// Loads the World heightmap
74 /// </summary>
75 public abstract void LoadWorldMap();
76
77 /// <summary>
78 /// Loads a new storage subsystem from a named library
79 /// </summary>
80 /// <param name="dllName">Storage Library</param>
81 /// <returns>Successful or not</returns>
82 public bool LoadStorageDLL(string dllName)
83 {
84 try
85 {
86 Assembly pluginAssembly = Assembly.LoadFrom(dllName);
87 ILocalStorage store = null;
88
89 foreach (Type pluginType in pluginAssembly.GetTypes())
90 {
91 if (pluginType.IsPublic)
92 {
93 if (!pluginType.IsAbstract)
94 {
95 Type typeInterface = pluginType.GetInterface("ILocalStorage", true);
96
97 if (typeInterface != null)
98 {
99 ILocalStorage plug = (ILocalStorage)Activator.CreateInstance(pluginAssembly.GetType(pluginType.ToString()));
100 store = plug;
101
102 store.Initialise(this.m_datastore);
103 break;
104 }
105
106 typeInterface = null;
107 }
108 }
109 }
110 pluginAssembly = null;
111 this.localStorage = store;
112 return (store == null);
113 }
114 catch (Exception e)
115 {
116 OpenSim.Framework.Console.MainLog.Instance.Warn("World.cs: LoadStorageDLL() - Failed with exception " + e.ToString());
117 return false;
118 }
119 }
120
121
122 /// <summary>
123 /// Send the region heightmap to the client
124 /// </summary>
125 /// <param name="RemoteClient">Client to send to</param>
126 public virtual void SendLayerData(IClientAPI RemoteClient)
127 {
128 RemoteClient.SendLayerData(Terrain.getHeights1D());
129 }
130
131 /// <summary>
132 /// Sends a specified patch to a client
133 /// </summary>
134 /// <param name="px">Patch coordinate (x) 0..16</param>
135 /// <param name="py">Patch coordinate (y) 0..16</param>
136 /// <param name="RemoteClient">The client to send to</param>
137 public virtual void SendLayerData(int px, int py, IClientAPI RemoteClient)
138 {
139 RemoteClient.SendLayerData(px, py, Terrain.getHeights1D());
140 }
141
142 #endregion
143
144 #region Add/Remove Agent/Avatar
145 /// <summary>
146 ///
147 /// </summary>
148 /// <param name="remoteClient"></param>
149 /// <param name="agentID"></param>
150 /// <param name="child"></param>
151 public abstract void AddNewClient(IClientAPI remoteClient, LLUUID agentID, bool child);
152
153 /// <summary>
154 ///
155 /// </summary>
156 /// <param name="agentID"></param>
157 public abstract void RemoveClient(LLUUID agentID);
158
159 #endregion
160
161 /// <summary>
162 ///
163 /// </summary>
164 /// <returns></returns>
165 public virtual RegionInfo RegionInfo
166 {
167 get { return this.m_regInfo; }
168 }
169
170 public object SyncRoot
171 {
172 get { return m_syncRoot; }
173 }
174
175 public uint NextLocalId
176 {
177 get { return m_nextLocalId++; }
178 }
179
180 #region Shutdown
181 /// <summary>
182 /// Tidy before shutdown
183 /// </summary>
184 public virtual void Close()
185 {
186 try
187 {
188 this.localStorage.ShutDown();
189 }
190 catch (Exception e)
191 {
192 OpenSim.Framework.Console.MainLog.Instance.WriteLine(OpenSim.Framework.Console.LogPriority.HIGH, "World.cs: Close() - Failed with exception " + e.ToString());
193 }
194 }
195
196 #endregion
197
198
199 }
200}