594 lines
20 KiB
C#
594 lines
20 KiB
C#
/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSimulator Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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using System.Collections.Generic;
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using System.Reflection;
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using System.Threading;
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using OpenMetaverse;
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using log4net;
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using Nini.Config;
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using OpenSim.Framework;
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using OpenSim.Framework.Console;
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using OpenSim.Region.Framework.Interfaces;
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using GridRegion = OpenSim.Services.Interfaces.GridRegion;
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namespace OpenSim.Region.Framework.Scenes
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{
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public abstract class SceneBase : IScene
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{
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protected static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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protected static readonly string LogHeader = "[SCENE]";
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#region Events
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public event restart OnRestart;
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#endregion
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#region Fields
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public string Name { get { return RegionInfo.RegionName; } }
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public IConfigSource Config
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{
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get { return GetConfig(); }
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}
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protected virtual IConfigSource GetConfig()
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{
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return null;
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}
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/// <value>
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/// All the region modules attached to this scene.
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/// </value>
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public Dictionary<string, IRegionModuleBase> RegionModules
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{
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get { return m_regionModules; }
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}
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private Dictionary<string, IRegionModuleBase> m_regionModules = new Dictionary<string, IRegionModuleBase>();
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/// <value>
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/// The module interfaces available from this scene.
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/// </value>
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protected Dictionary<Type, List<object>> ModuleInterfaces = new Dictionary<Type, List<object>>();
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protected Dictionary<string, object> ModuleAPIMethods = new Dictionary<string, object>();
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/// <value>
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/// The module commanders available from this scene
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/// </value>
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protected Dictionary<string, ICommander> m_moduleCommanders = new Dictionary<string, ICommander>();
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/// <value>
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/// Registered classes that are capable of creating entities.
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/// </value>
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protected Dictionary<PCode, IEntityCreator> m_entityCreators = new Dictionary<PCode, IEntityCreator>();
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/// <summary>
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/// The last allocated local prim id. When a new local id is requested, the next number in the sequence is
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/// dispensed.
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/// </summary>
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protected uint m_lastAllocatedLocalId = 720000;
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private readonly Mutex _primAllocateMutex = new Mutex(false);
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protected readonly ClientManager m_clientManager = new ClientManager();
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public bool LoginsEnabled
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{
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get
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{
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return m_loginsEnabled;
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}
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set
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{
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if (m_loginsEnabled != value)
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{
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m_loginsEnabled = value;
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EventManager.TriggerRegionLoginsStatusChange(this);
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}
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}
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}
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private bool m_loginsEnabled;
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public bool Ready
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{
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get
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{
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return m_ready;
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}
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set
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{
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if (m_ready != value)
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{
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m_ready = value;
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EventManager.TriggerRegionReadyStatusChange(this);
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}
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}
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}
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private bool m_ready;
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public float TimeDilation
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{
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get { return 1.0f; }
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}
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protected ulong m_regionHandle;
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protected string m_regionName;
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public ITerrainChannel Heightmap;
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/// <value>
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/// Allows retrieval of land information for this scene.
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/// </value>
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public ILandChannel LandChannel;
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/// <value>
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/// Manage events that occur in this scene (avatar movement, script rez, etc.). Commonly used by region modules
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/// to subscribe to scene events.
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/// </value>
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public EventManager EventManager
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{
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get { return m_eventManager; }
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}
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protected EventManager m_eventManager;
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protected ScenePermissions m_permissions;
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public ScenePermissions Permissions
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{
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get { return m_permissions; }
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}
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protected string m_datastore;
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/* Used by the loadbalancer plugin on GForge */
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protected RegionStatus m_regStatus;
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public RegionStatus RegionStatus
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{
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get { return m_regStatus; }
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set { m_regStatus = value; }
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}
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#endregion
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public SceneBase(RegionInfo regInfo)
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{
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RegionInfo = regInfo;
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}
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#region Update Methods
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/// <summary>
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/// Called to update the scene loop by a number of frames and until shutdown.
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/// </summary>
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/// <param name="frames">
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/// Number of frames to update. Exits on shutdown even if there are frames remaining.
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/// If -1 then updates until shutdown.
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/// </param>
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public abstract void Update(int frames);
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#endregion
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#region Terrain Methods
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/// <summary>
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/// Loads the World heightmap
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/// </summary>
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public abstract void LoadWorldMap();
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/// <summary>
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/// Send the region heightmap to the client
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/// </summary>
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/// <param name="RemoteClient">Client to send to</param>
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public virtual void SendLayerData(IClientAPI RemoteClient)
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{
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RemoteClient.SendLayerData(Heightmap.GetFloatsSerialised());
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}
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#endregion
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#region Add/Remove Agent/Avatar
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public abstract ISceneAgent AddNewAgent(IClientAPI client, PresenceType type);
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public abstract bool CloseAgent(UUID agentID, bool force);
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public bool TryGetScenePresence(UUID agentID, out object scenePresence)
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{
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scenePresence = null;
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ScenePresence sp = null;
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if (TryGetScenePresence(agentID, out sp))
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{
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scenePresence = sp;
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return true;
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}
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return false;
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}
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/// <summary>
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/// Try to get a scene presence from the scene
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/// </summary>
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/// <param name="agentID"></param>
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/// <param name="scenePresence">null if there is no scene presence with the given agent id</param>
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/// <returns>true if there was a scene presence with the given id, false otherwise.</returns>
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public abstract bool TryGetScenePresence(UUID agentID, out ScenePresence scenePresence);
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#endregion
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/// <summary>
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///
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/// </summary>
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/// <returns></returns>
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public virtual RegionInfo RegionInfo { get; private set; }
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#region admin stuff
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public abstract void OtherRegionUp(GridRegion otherRegion);
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public virtual string GetSimulatorVersion()
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{
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return "OpenSimulator Server";
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}
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#endregion
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#region Shutdown
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/// <summary>
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/// Tidy before shutdown
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/// </summary>
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public virtual void Close()
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{
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try
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{
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EventManager.TriggerShutdown();
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}
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catch (Exception e)
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{
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m_log.Error(string.Format("[SCENE]: SceneBase.cs: Close() - Failed with exception ", e));
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}
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}
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#endregion
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/// <summary>
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/// Returns a new unallocated local ID
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/// </summary>
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/// <returns>A brand new local ID</returns>
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public uint AllocateLocalId()
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{
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uint myID;
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_primAllocateMutex.WaitOne();
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myID = ++m_lastAllocatedLocalId;
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_primAllocateMutex.ReleaseMutex();
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return myID;
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}
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public uint AllocatePresenceLocalId()
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{
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uint myID;
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_primAllocateMutex.WaitOne();
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myID = ++m_lastAllocatedLocalId;
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++m_lastAllocatedLocalId;
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_primAllocateMutex.ReleaseMutex();
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return myID;
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}
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#region Module Methods
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/// <summary>
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/// Add a region-module to this scene. TODO: This will replace AddModule in the future.
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/// </summary>
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/// <param name="name"></param>
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/// <param name="module"></param>
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public void AddRegionModule(string name, IRegionModuleBase module)
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{
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if (!RegionModules.ContainsKey(name))
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{
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RegionModules.Add(name, module);
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}
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}
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public void RemoveRegionModule(string name)
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{
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RegionModules.Remove(name);
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}
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/// <summary>
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/// Register a module commander.
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/// </summary>
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/// <param name="commander"></param>
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public void RegisterModuleCommander(ICommander commander)
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{
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lock (m_moduleCommanders)
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{
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m_moduleCommanders.Add(commander.Name, commander);
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}
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}
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/// <summary>
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/// Unregister a module commander and all its commands
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/// </summary>
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/// <param name="name"></param>
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public void UnregisterModuleCommander(string name)
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{
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lock (m_moduleCommanders)
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{
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ICommander commander;
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if (m_moduleCommanders.TryGetValue(name, out commander))
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m_moduleCommanders.Remove(name);
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}
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}
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/// <summary>
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/// Get a module commander
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/// </summary>
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/// <param name="name"></param>
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/// <returns>The module commander, null if no module commander with that name was found</returns>
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public ICommander GetCommander(string name)
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{
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lock (m_moduleCommanders)
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{
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if (m_moduleCommanders.ContainsKey(name))
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return m_moduleCommanders[name];
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}
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return null;
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}
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public Dictionary<string, ICommander> GetCommanders()
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{
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return m_moduleCommanders;
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}
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/// <summary>
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/// Register an interface to a region module. This allows module methods to be called directly as
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/// well as via events. If there is already a module registered for this interface, it is not replaced
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/// (is this the best behaviour?)
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/// </summary>
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/// <param name="mod"></param>
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public void RegisterModuleInterface<M>(M mod)
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{
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// m_log.DebugFormat("[SCENE BASE]: Registering interface {0}", typeof(M));
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List<Object> l = null;
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if (!ModuleInterfaces.TryGetValue(typeof(M), out l))
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{
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l = new List<Object>();
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ModuleInterfaces.Add(typeof(M), l);
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}
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if (l.Count > 0)
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return;
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l.Add(mod);
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if (mod is IEntityCreator)
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{
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IEntityCreator entityCreator = (IEntityCreator)mod;
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foreach (PCode pcode in entityCreator.CreationCapabilities)
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{
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m_entityCreators[pcode] = entityCreator;
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}
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}
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}
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public void UnregisterModuleInterface<M>(M mod)
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{
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List<Object> l;
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if (ModuleInterfaces.TryGetValue(typeof(M), out l))
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{
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if (l.Remove(mod))
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{
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if (mod is IEntityCreator)
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{
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IEntityCreator entityCreator = (IEntityCreator)mod;
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foreach (PCode pcode in entityCreator.CreationCapabilities)
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{
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m_entityCreators[pcode] = null;
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}
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}
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}
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}
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}
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public void StackModuleInterface<M>(M mod)
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{
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List<Object> l;
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if (ModuleInterfaces.ContainsKey(typeof(M)))
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l = ModuleInterfaces[typeof(M)];
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else
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l = new List<Object>();
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if (l.Contains(mod))
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return;
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l.Add(mod);
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if (mod is IEntityCreator)
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{
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IEntityCreator entityCreator = (IEntityCreator)mod;
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foreach (PCode pcode in entityCreator.CreationCapabilities)
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{
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m_entityCreators[pcode] = entityCreator;
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}
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}
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ModuleInterfaces[typeof(M)] = l;
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}
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/// <summary>
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/// For the given interface, retrieve the region module which implements it.
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/// </summary>
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/// <returns>null if there is no registered module implementing that interface</returns>
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public T RequestModuleInterface<T>()
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{
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if (ModuleInterfaces.ContainsKey(typeof(T)) &&
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(ModuleInterfaces[typeof(T)].Count > 0))
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return (T)ModuleInterfaces[typeof(T)][0];
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else
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return default(T);
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}
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/// <summary>
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/// For the given interface, retrieve an array of region modules that implement it.
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/// </summary>
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/// <returns>an empty array if there are no registered modules implementing that interface</returns>
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public T[] RequestModuleInterfaces<T>()
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{
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if (ModuleInterfaces.ContainsKey(typeof(T)))
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{
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List<T> ret = new List<T>();
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foreach (Object o in ModuleInterfaces[typeof(T)])
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ret.Add((T)o);
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return ret.ToArray();
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}
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else
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{
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return new T[] {};
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}
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}
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#endregion
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/// <summary>
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/// Call this from a region module to add a command to the OpenSim console.
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/// </summary>
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/// <param name="mod"></param>
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/// <param name="command"></param>
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/// <param name="shorthelp"></param>
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/// <param name="longhelp"></param>
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/// <param name="callback"></param>
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public void AddCommand(IRegionModuleBase module, string command, string shorthelp, string longhelp, CommandDelegate callback)
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{
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AddCommand(module, command, shorthelp, longhelp, string.Empty, callback);
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}
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/// <summary>
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/// Call this from a region module to add a command to the OpenSim console.
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/// </summary>
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/// <param name="mod">
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/// The use of IRegionModuleBase is a cheap trick to get a different method signature,
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/// though all new modules should be using interfaces descended from IRegionModuleBase anyway.
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/// </param>
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/// <param name="category">
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/// Category of the command. This is the section under which it will appear when the user asks for help
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/// </param>
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/// <param name="command"></param>
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/// <param name="shorthelp"></param>
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/// <param name="longhelp"></param>
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/// <param name="callback"></param>
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public void AddCommand(
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string category, IRegionModuleBase module, string command, string shorthelp, string longhelp, CommandDelegate callback)
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{
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AddCommand(category, module, command, shorthelp, longhelp, string.Empty, callback);
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}
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/// <summary>
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/// Call this from a region module to add a command to the OpenSim console.
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/// </summary>
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/// <param name="mod"></param>
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/// <param name="command"></param>
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/// <param name="shorthelp"></param>
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/// <param name="longhelp"></param>
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/// <param name="descriptivehelp"></param>
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/// <param name="callback"></param>
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public void AddCommand(IRegionModuleBase module, string command, string shorthelp, string longhelp, string descriptivehelp, CommandDelegate callback)
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{
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string moduleName = "";
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if (module != null)
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moduleName = module.Name;
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AddCommand(moduleName, module, command, shorthelp, longhelp, descriptivehelp, callback);
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}
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/// <summary>
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/// Call this from a region module to add a command to the OpenSim console.
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/// </summary>
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/// <param name="category">
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/// Category of the command. This is the section under which it will appear when the user asks for help
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/// </param>
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/// <param name="mod"></param>
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/// <param name="command"></param>
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/// <param name="shorthelp"></param>
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/// <param name="longhelp"></param>
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/// <param name="descriptivehelp"></param>
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/// <param name="callback"></param>
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public void AddCommand(
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string category, IRegionModuleBase module, string command,
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string shorthelp, string longhelp, string descriptivehelp, CommandDelegate callback)
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{
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if (MainConsole.Instance == null)
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return;
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bool shared = false;
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if (module != null)
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shared = module is ISharedRegionModule;
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MainConsole.Instance.Commands.AddCommand(
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category, shared, command, shorthelp, longhelp, descriptivehelp, callback);
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}
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public virtual ISceneObject DeserializeObject(string representation)
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{
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return null;
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}
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public virtual bool AllowScriptCrossings
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{
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get { return false; }
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}
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public virtual void Start()
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{
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}
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public void Restart()
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{
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// This has to be here to fire the event
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restart handlerPhysicsCrash = OnRestart;
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if (handlerPhysicsCrash != null)
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handlerPhysicsCrash(RegionInfo);
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}
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public abstract bool CheckClient(UUID agentID, System.Net.IPEndPoint ep);
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}
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}
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