opensim-development – Blame information for rev 1
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| Rev | Author | Line No. | Line |
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| 1 | eva | 1 | /* |
| 2 | * Copyright (c) Contributors, http://opensimulator.org/ |
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| 3 | * See CONTRIBUTORS.TXT for a full list of copyright holders. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions are met: |
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| 7 | * * Redistributions of source code must retain the above copyright |
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| 8 | * notice, this list of conditions and the following disclaimer. |
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| 9 | * * Redistributions in binary form must reproduce the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer in the |
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| 11 | * documentation and/or other materials provided with the distribution. |
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| 12 | * * Neither the name of the OpenSimulator Project nor the |
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| 13 | * names of its contributors may be used to endorse or promote products |
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| 14 | * derived from this software without specific prior written permission. |
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| 15 | * |
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| 16 | * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY |
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| 17 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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| 18 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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| 19 | * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY |
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| 20 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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| 21 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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| 22 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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| 23 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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| 25 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 26 | */ |
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| 27 | |||
| 28 | using System; |
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| 29 | using System.Collections.Generic; |
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| 30 | using System.Reflection; |
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| 31 | |||
| 32 | using OpenSim.Framework; |
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| 33 | using OpenSim.Region.Framework.Scenes; |
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| 34 | using OpenSim.Services.Interfaces; |
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| 35 | using GridRegion = OpenSim.Services.Interfaces.GridRegion; |
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| 36 | |||
| 37 | using OpenMetaverse; |
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| 38 | using log4net; |
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| 39 | |||
| 40 | namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Grid |
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| 41 | { |
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| 42 | public class RegionCache |
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| 43 | { |
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| 44 | private static readonly ILog m_log = |
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| 45 | LogManager.GetLogger( |
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| 46 | MethodBase.GetCurrentMethod().DeclaringType); |
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| 47 | |||
| 48 | private Scene m_scene; |
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| 49 | private Dictionary<ulong, GridRegion> m_neighbours = new Dictionary<ulong, GridRegion>(); |
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| 50 | |||
| 51 | public string RegionName |
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| 52 | { |
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| 53 | get { return m_scene.RegionInfo.RegionName; } |
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| 54 | } |
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| 55 | |||
| 56 | public RegionCache(Scene s) |
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| 57 | { |
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| 58 | m_scene = s; |
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| 59 | m_scene.EventManager.OnRegionUp += OnRegionUp; |
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| 60 | } |
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| 61 | |||
| 62 | private void OnRegionUp(GridRegion otherRegion) |
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| 63 | { |
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| 64 | // This shouldn't happen |
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| 65 | if (otherRegion == null) |
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| 66 | return; |
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| 67 | |||
| 68 | m_log.DebugFormat("[REGION CACHE]: (on region {0}) Region {1} is up @ {2}-{3}", |
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| 69 | m_scene.RegionInfo.RegionName, otherRegion.RegionName, Util.WorldToRegionLoc((uint)otherRegion.RegionLocX), Util.WorldToRegionLoc((uint)otherRegion.RegionLocY)); |
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| 70 | |||
| 71 | m_neighbours[otherRegion.RegionHandle] = otherRegion; |
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| 72 | } |
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| 73 | |||
| 74 | public void Clear() |
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| 75 | { |
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| 76 | m_scene.EventManager.OnRegionUp -= OnRegionUp; |
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| 77 | m_neighbours.Clear(); |
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| 78 | } |
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| 79 | |||
| 80 | public List<GridRegion> GetNeighbours() |
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| 81 | { |
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| 82 | return new List<GridRegion>(m_neighbours.Values); |
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| 83 | } |
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| 84 | |||
| 85 | // Get a region given its base coordinates (in meters). |
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| 86 | // NOTE: this is NOT 'get a region by some point in the region'. The coordinate MUST |
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| 87 | // be the base coordinate of the region. |
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| 88 | // The snapping is technically unnecessary but is harmless because regions are always |
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| 89 | // multiples of the legacy region size (256). |
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| 90 | public GridRegion GetRegionByPosition(int x, int y) |
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| 91 | { |
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| 92 | uint xsnap = (uint)(x / Constants.RegionSize) * Constants.RegionSize; |
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| 93 | uint ysnap = (uint)(y / Constants.RegionSize) * Constants.RegionSize; |
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| 94 | ulong handle = Util.RegionWorldLocToHandle(xsnap, ysnap); |
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| 95 | |||
| 96 | if (m_neighbours.ContainsKey(handle)) |
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| 97 | return m_neighbours[handle]; |
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| 98 | |||
| 99 | return null; |
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| 100 | } |
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| 101 | } |
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| 102 | } |