clockwerk-opensim-stable – Blame information for rev 1

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1 vero 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 OpenSimulator 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  
28 using System;
29 using System.Collections.Generic;
30 using System.Reflection;
31  
32 using OpenSim.Framework;
33 using OpenSim.Region.Framework.Scenes;
34 using OpenSim.Services.Interfaces;
35 using GridRegion = OpenSim.Services.Interfaces.GridRegion;
36  
37 using OpenMetaverse;
38 using log4net;
39  
40 namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Grid
41 {
42 public class RegionCache
43 {
44 private static readonly ILog m_log =
45 LogManager.GetLogger(
46 MethodBase.GetCurrentMethod().DeclaringType);
47  
48 private Scene m_scene;
49 private Dictionary<ulong, GridRegion> m_neighbours = new Dictionary<ulong, GridRegion>();
50  
51 public string RegionName
52 {
53 get { return m_scene.RegionInfo.RegionName; }
54 }
55  
56 public RegionCache(Scene s)
57 {
58 m_scene = s;
59 m_scene.EventManager.OnRegionUp += OnRegionUp;
60 }
61  
62 private void OnRegionUp(GridRegion otherRegion)
63 {
64 // This shouldn't happen
65 if (otherRegion == null)
66 return;
67  
68 m_log.DebugFormat("[REGION CACHE]: (on region {0}) Region {1} is up @ {2}-{3}",
69 m_scene.RegionInfo.RegionName, otherRegion.RegionName, otherRegion.RegionLocX / Constants.RegionSize, otherRegion.RegionLocY / Constants.RegionSize);
70  
71 m_neighbours[otherRegion.RegionHandle] = otherRegion;
72 }
73  
74 public void Clear()
75 {
76 m_scene.EventManager.OnRegionUp -= OnRegionUp;
77 m_neighbours.Clear();
78 }
79  
80 public List<GridRegion> GetNeighbours()
81 {
82 return new List<GridRegion>(m_neighbours.Values);
83 }
84  
85 public GridRegion GetRegionByPosition(int x, int y)
86 {
87 uint xsnap = (uint)(x / Constants.RegionSize) * Constants.RegionSize;
88 uint ysnap = (uint)(y / Constants.RegionSize) * Constants.RegionSize;
89 ulong handle = Utils.UIntsToLong(xsnap, ysnap);
90  
91 if (m_neighbours.ContainsKey(handle))
92 return m_neighbours[handle];
93  
94 return null;
95 }
96 }
97 }