Files
libremetaverse/libsecondlife/GridManager.cs
John Hurliman 037b7b0aed Initial check-in of the new CAPS rewrite. Current issues:
* Original CapsEventQueue is still being used until a bug in the new one can be resolved
* New progress callbacks are not being utilized (yet)
* Listener classes (CapsListener and EventQueueListener) are only stubs right now

git-svn-id: http://libopenmetaverse.googlecode.com/svn/trunk@1518 52acb1d6-8a22-11de-b505-999d5b087335
2007-12-06 00:58:28 +00:00

591 lines
22 KiB
C#

/*
* Copyright (c) 2006-2007, Second Life Reverse Engineering Team
* All rights reserved.
*
* - 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.
* - Neither the name of the Second Life Reverse Engineering Team 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 COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR 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.Text;
using System.Collections;
using System.Collections.Generic;
using System.Threading;
using libsecondlife.StructuredData;
using libsecondlife.Capabilities;
using libsecondlife.Packets;
namespace libsecondlife
{
/// <summary>
///
/// </summary>
public enum GridLayerType : uint
{
/// <summary>Objects and terrain are shown</summary>
Objects = 0,
/// <summary>Only the terrain is shown, no objects</summary>
Terrain = 1,
/// <summary>Overlay showing land for sale and for auction</summary>
LandForSale = 2
}
/// <summary>
///
/// </summary>
public enum GridItemType : uint
{
Telehub = 1,
PgEvent = 2,
MatureEvent = 3,
Popular = 4,
AgentLocations = 6,
LandForSale = 7,
Classified = 8
}
/// <summary>
/// Information about a region on the grid map
/// </summary>
public struct GridRegion
{
/// <summary>Sim X position on World Map</summary>
public int X;
/// <summary>Sim Y position on World Map</summary>
public int Y;
/// <summary>Sim Name (NOTE: In lowercase!)</summary>
public string Name;
/// <summary></summary>
public Simulator.SimAccess Access;
/// <summary>Appears to always be zero (None)</summary>
public Simulator.RegionFlags RegionFlags;
/// <summary>Sim's defined Water Height</summary>
public byte WaterHeight;
/// <summary></summary>
public byte Agents;
/// <summary>UUID of the World Map image</summary>
public LLUUID MapImageID;
/// <summary>Unique identifier for this region, a combination of the X
/// and Y position</summary>
public ulong RegionHandle;
/// <summary>
///
/// </summary>
/// <returns></returns>
public override string ToString()
{
StringBuilder output = new StringBuilder("GridRegion: ");
output.Append(Name); output.Append(Helpers.NewLine);
output.Append("RegionHandle: " + RegionHandle); output.Append(Helpers.NewLine);
output.Append(String.Format("X: {0} Y: {1}", X, Y)); output.Append(Helpers.NewLine);
output.Append("MapImageID: " + MapImageID.ToString()); output.Append(Helpers.NewLine);
output.Append("Access: " + Access); output.Append(Helpers.NewLine);
output.Append("RegionFlags: " + RegionFlags); output.Append(Helpers.NewLine);
output.Append("WaterHeight: " + WaterHeight); output.Append(Helpers.NewLine);
output.Append("Agents: " + Agents);
return output.ToString();
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public override int GetHashCode()
{
return X.GetHashCode() ^ Y.GetHashCode();
}
/// <summary>
///
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public override bool Equals(object obj)
{
if (obj is GridRegion)
return Equals((GridRegion)obj);
else
return false;
}
private bool Equals(GridRegion region)
{
return (this.X == region.X && this.Y == region.Y);
}
}
/// <summary>
/// Visual chunk of the grid map
/// </summary>
public struct GridLayer
{
public int Bottom;
public int Left;
public int Top;
public int Right;
public LLUUID ImageID;
public bool ContainsRegion(int x, int y)
{
return (x >= Left && x <= Right && y >= Bottom && y <= Top);
}
}
public abstract class GridItem
{
}
public class GridAgentLocation : GridItem
{
public uint GlobalX;
public uint GlobalY;
public int AvatarCount;
public string Identifier;
public uint LocalX { get { return GlobalX % 256; } }
public uint LocalY { get { return GlobalY % 256; } }
public ulong RegionHandle
{
get { return Helpers.UIntsToLong((uint)(GlobalX - (GlobalX % 256)), (uint)(GlobalY - (GlobalY % 256))); }
}
}
/// <summary>
/// Manages grid-wide tasks such as the world map
/// </summary>
public class GridManager
{
/// <summary>
///
/// </summary>
/// <param name="region"></param>
public delegate void GridRegionCallback(GridRegion region);
/// <summary>
///
/// </summary>
/// <param name="layer"></param>
public delegate void GridLayerCallback(GridLayer layer);
/// <summary>
///
/// </summary>
/// <param name="type"></param>
/// <param name="items"></param>
public delegate void GridItemsCallback(GridItemType type, List<GridItem> items);
/// <summary>Triggered when a new region is discovered through GridManager</summary>
public event GridRegionCallback OnGridRegion;
/// <summary></summary>
public event GridLayerCallback OnGridLayer;
/// <summary></summary>
public event GridItemsCallback OnGridItems;
/// <summary>Unknown</summary>
public float SunPhase { get { return sunPhase; } }
/// <summary>Current direction of the sun</summary>
public LLVector3 SunDirection { get { return sunDirection; } }
/// <summary>Current angular velocity of the sun</summary>
public LLVector3 SunAngVelocity { get { return sunAngVelocity; } }
/// <summary>A dictionary of all the regions, indexed by region name</summary>
internal Dictionary<string, GridRegion> Regions = new Dictionary<string, GridRegion>();
/// <summary>A dictionary of all the regions, indexed by region handle</summary>
internal Dictionary<ulong, GridRegion> RegionsByHandle = new Dictionary<ulong, GridRegion>();
private SecondLife Client;
private float sunPhase;
private LLVector3 sunDirection;
private LLVector3 sunAngVelocity;
/// <summary>
/// Constructor
/// </summary>
/// <param name="client">Instance of type SecondLife to associate with this GridManager instance</param>
public GridManager(SecondLife client)
{
Client = client;
Client.Network.RegisterCallback(PacketType.MapBlockReply, new NetworkManager.PacketCallback(MapBlockReplyHandler));
Client.Network.RegisterCallback(PacketType.MapItemReply, new NetworkManager.PacketCallback(MapItemReplyHandler));
Client.Network.RegisterCallback(PacketType.SimulatorViewerTimeMessage, new NetworkManager.PacketCallback(TimeMessageHandler));
Client.Network.RegisterCallback(PacketType.CoarseLocationUpdate, new NetworkManager.PacketCallback(CoarseLocationHandler));
}
/// <summary>
///
/// </summary>
/// <param name="layer"></param>
public void RequestMapLayer(GridLayerType layer)
{
Uri url = Client.Network.CurrentSim.Caps.CapabilityURI("MapLayer");
if (url != null)
{
LLSDMap body = new LLSDMap();
body["Flags"] = LLSD.FromInteger((int)layer);
CapsClient request = new CapsClient(url);
request.OnComplete += new CapsClient.CompleteCallback(MapLayerResponseHandler);
request.StartRequest(body);
}
}
/// <summary>
///
/// </summary>
/// <param name="regionName"></param>
/// <param name="layer"></param>
public void RequestMapRegion(string regionName, GridLayerType layer)
{
MapNameRequestPacket request = new MapNameRequestPacket();
request.AgentData.AgentID = Client.Self.AgentID;
request.AgentData.SessionID = Client.Self.SessionID;
request.AgentData.Flags = (uint)layer;
request.AgentData.EstateID = 0; // Filled in on the sim
request.AgentData.Godlike = false; // Filled in on the sim
request.NameData.Name = Helpers.StringToField(regionName.ToLower());
Client.Network.SendPacket(request);
}
/// <summary>
///
/// </summary>
/// <param name="layer"></param>
/// <param name="minX"></param>
/// <param name="minY"></param>
/// <param name="maxX"></param>
/// <param name="maxY"></param>
/// <param name="returnNonExistent"></param>
public void RequestMapBlocks(GridLayerType layer, ushort minX, ushort minY, ushort maxX, ushort maxY,
bool returnNonExistent)
{
MapBlockRequestPacket request = new MapBlockRequestPacket();
request.AgentData.AgentID = Client.Self.AgentID;
request.AgentData.SessionID = Client.Self.SessionID;
request.AgentData.Flags = (uint)layer;
request.AgentData.Flags |= (uint)(returnNonExistent ? 0x10000 : 0);
request.AgentData.EstateID = 0; // Filled in at the simulator
request.AgentData.Godlike = false; // Filled in at the simulator
request.PositionData.MinX = minX;
request.PositionData.MinY = minY;
request.PositionData.MaxX = maxX;
request.PositionData.MaxY = maxY;
Client.Network.SendPacket(request);
}
/// <summary>
///
/// </summary>
/// <param name="regionHandle"></param>
/// <param name="item"></param>
/// <param name="layer"></param>
/// <param name="timeoutMS"></param>
/// <returns></returns>
public List<GridItem> MapItems(ulong regionHandle, GridItemType item, GridLayerType layer, int timeoutMS)
{
List<GridItem> itemList = null;
AutoResetEvent itemsEvent = new AutoResetEvent(false);
GridItemsCallback callback =
delegate(GridItemType type, List<GridItem> items)
{
if (type == GridItemType.AgentLocations)
{
itemList = items;
itemsEvent.Set();
}
};
OnGridItems += callback;
RequestMapItems(regionHandle, item, layer);
itemsEvent.WaitOne(timeoutMS, false);
OnGridItems -= callback;
return itemList;
}
/// <summary>
///
/// </summary>
/// <param name="regionHandle"></param>
/// <param name="item"></param>
/// <param name="layer"></param>
public void RequestMapItems(ulong regionHandle, GridItemType item, GridLayerType layer)
{
MapItemRequestPacket request = new MapItemRequestPacket();
request.AgentData.AgentID = Client.Self.AgentID;
request.AgentData.SessionID = Client.Self.SessionID;
request.AgentData.Flags = (uint)layer;
request.AgentData.Godlike = false; // Filled in on the sim
request.AgentData.EstateID = 0; // Filled in on the sim
request.RequestData.ItemType = (uint)item;
request.RequestData.RegionHandle = regionHandle;
Client.Network.SendPacket(request);
}
/// <summary>
/// Request data for all mainland (Linden managed) simulators
/// </summary>
public void RequestMainlandSims(GridLayerType layer)
{
RequestMapBlocks(layer, 0, 0, 65535, 65535, false);
}
/// <summary>
/// Get grid region information using the region name, this function
/// will block until it can find the region or gives up
/// </summary>
/// <param name="name">Name of sim you're looking for</param>
/// <param name="layer">Layer that you are requesting</param>
/// <param name="region">Will contain a GridRegion for the sim you're
/// looking for if successful, otherwise an empty structure</param>
/// <returns>True if the GridRegion was successfully fetched, otherwise
/// false</returns>
public bool GetGridRegion(string name, GridLayerType layer, out GridRegion region)
{
if (String.IsNullOrEmpty(name))
{
Client.Log("GetGridRegion called with a null or empty region name", Helpers.LogLevel.Error);
region = new GridRegion();
return false;
}
// All lookups are done using lowercase sim names
name = name.ToLower();
if (Regions.ContainsKey(name))
{
// We already have this GridRegion structure
region = Regions[name];
return true;
}
else
{
AutoResetEvent regionEvent = new AutoResetEvent(false);
GridRegionCallback callback =
delegate(GridRegion gridRegion)
{
if (gridRegion.Name == name)
regionEvent.Set();
};
OnGridRegion += callback;
RequestMapRegion(name, layer);
regionEvent.WaitOne(Client.Settings.MAP_REQUEST_TIMEOUT, false);
OnGridRegion -= callback;
if (Regions.ContainsKey(name))
{
// The region was found after our request
region = Regions[name];
return true;
}
else
{
Client.Log("Couldn't find region " + name, Helpers.LogLevel.Warning);
region = new GridRegion();
return false;
}
}
}
private void MapLayerResponseHandler(CapsClient client, LLSD result, Exception error)
{
LLSDMap body = (LLSDMap)result;
LLSDArray layerData = (LLSDArray)body["LayerData"];
if (OnGridLayer != null)
{
for (int i = 0; i < layerData.Count; i++)
{
LLSDMap thisLayerData = (LLSDMap)layerData[i];
GridLayer layer;
layer.Bottom = thisLayerData["Bottom"].AsInteger();
layer.Left = thisLayerData["Left"].AsInteger();
layer.Top = thisLayerData["Top"].AsInteger();
layer.Right = thisLayerData["Right"].AsInteger();
layer.ImageID = thisLayerData["ImageID"].AsUUID();
try { OnGridLayer(layer); }
catch (Exception e) { Client.Log(e.ToString(), Helpers.LogLevel.Error); }
}
}
if (body.ContainsKey("MapBlocks"))
{
// TODO: At one point this will become activated
Client.Log("Got MapBlocks through CAPS, please finish this function!", Helpers.LogLevel.Error);
}
}
/// <summary>
/// Populate Grid info based on data from MapBlockReplyPacket
/// </summary>
/// <param name="packet">Incoming MapBlockReplyPacket packet</param>
/// <param name="simulator">Unused</param>
private void MapBlockReplyHandler(Packet packet, Simulator simulator)
{
MapBlockReplyPacket map = (MapBlockReplyPacket)packet;
foreach (MapBlockReplyPacket.DataBlock block in map.Data)
{
if (block.X != 0 && block.Y != 0)
{
GridRegion region;
region.X = block.X;
region.Y = block.Y;
region.Name = Helpers.FieldToUTF8String(block.Name);
// RegionFlags seems to always be zero here?
region.RegionFlags = (Simulator.RegionFlags)block.RegionFlags;
region.WaterHeight = block.WaterHeight;
region.Agents = block.Agents;
region.Access = (Simulator.SimAccess)block.Access;
region.MapImageID = block.MapImageID;
region.RegionHandle = Helpers.UIntsToLong((uint)(region.X * 256), (uint)(region.Y * 256));
lock (Regions)
{
Regions[region.Name.ToLower()] = region;
RegionsByHandle[region.RegionHandle] = region;
}
if (OnGridRegion != null)
{
try { OnGridRegion(region); }
catch (Exception e) { Client.Log(e.ToString(), Helpers.LogLevel.Error); }
}
}
}
}
private void MapItemReplyHandler(Packet packet, Simulator simulator)
{
if (OnGridItems != null)
{
MapItemReplyPacket reply = (MapItemReplyPacket)packet;
GridItemType type = (GridItemType)reply.RequestData.ItemType;
List<GridItem> items = new List<GridItem>();
for (int i = 0; i < reply.Data.Length; i++)
{
string name = Helpers.FieldToUTF8String(reply.Data[i].Name);
switch (type)
{
case GridItemType.AgentLocations:
GridAgentLocation location = new GridAgentLocation();
location.GlobalX = reply.Data[i].X;
location.GlobalY = reply.Data[i].Y;
location.Identifier = name;
location.AvatarCount = reply.Data[i].Extra;
items.Add(location);
break;
case GridItemType.Classified:
//FIXME:
Client.Log("FIXME", Helpers.LogLevel.Error);
break;
case GridItemType.LandForSale:
//FIXME:
Client.Log("FIXME", Helpers.LogLevel.Error);
break;
case GridItemType.MatureEvent:
case GridItemType.PgEvent:
//FIXME:
Client.Log("FIXME", Helpers.LogLevel.Error);
break;
case GridItemType.Popular:
//FIXME:
Client.Log("FIXME", Helpers.LogLevel.Error);
break;
case GridItemType.Telehub:
//FIXME:
Client.Log("FIXME", Helpers.LogLevel.Error);
break;
default:
Client.Log("Unknown map item type " + type, Helpers.LogLevel.Warning);
break;
}
}
try { OnGridItems(type, items); }
catch (Exception e) { Client.Log(e.ToString(), Helpers.LogLevel.Error); }
}
}
/// <summary>
/// Get sim time from the appropriate packet
/// </summary>
/// <param name="packet">Incoming SimulatorViewerTimeMessagePacket from SL</param>
/// <param name="simulator">Unused</param>
private void TimeMessageHandler(Packet packet, Simulator simulator)
{
SimulatorViewerTimeMessagePacket time = (SimulatorViewerTimeMessagePacket)packet;
sunPhase = time.TimeInfo.SunPhase;
sunDirection = time.TimeInfo.SunDirection;
sunAngVelocity = time.TimeInfo.SunAngVelocity;
// TODO: Does anyone have a use for the time stuff?
}
private void CoarseLocationHandler(Packet packet, Simulator simulator)
{
CoarseLocationUpdatePacket coarse = (CoarseLocationUpdatePacket)packet;
lock (simulator.avatarPositions)
{
simulator.avatarPositions.Clear();
for (int i = 0; i < coarse.Location.Length; i++)
{
if (i == coarse.Index.You)
{
simulator.positionIndexYou = i;
}
else if (i == coarse.Index.Prey)
{
simulator.positionIndexPrey = i;
}
simulator.avatarPositions.Add(new LLVector3(coarse.Location[i].X, coarse.Location[i].Y,
coarse.Location[i].Z));
}
}
}
}
}