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path: root/OpenSim/Services/Interfaces/IAvatarService.cs
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/*
 * Copyright (c) Contributors, http://opensimulator.org/
 * See CONTRIBUTORS.TXT for a full list of copyright holders.
 *
 * 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.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the OpenSimulator Project 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 DEVELOPERS ``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 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.Collections;
using System.Collections.Generic;

using OpenSim.Framework;

using OpenMetaverse;

namespace OpenSim.Services.Interfaces
{
    public interface IAvatarService
    {
        /// <summary>
        /// Called by the login service
        /// </summary>
        /// <param name="userID"></param>
        /// <returns></returns>
        AvatarAppearance GetAppearance(UUID userID);

        /// <summary>
        /// Called by everyone who can change the avatar data (so, regions)
        /// </summary>
        /// <param name="userID"></param>
        /// <param name="appearance"></param>
        /// <returns></returns>
        bool SetAppearance(UUID userID, AvatarAppearance appearance);
        
        /// <summary>
        /// Called by the login service
        /// </summary>
        /// <param name="userID"></param>
        /// <returns></returns>
        AvatarData GetAvatar(UUID userID);

        /// <summary>
        /// Called by everyone who can change the avatar data (so, regions)
        /// </summary>
        /// <param name="userID"></param>
        /// <param name="avatar"></param>
        /// <returns></returns>
        bool SetAvatar(UUID userID, AvatarData avatar);

        /// <summary>
        /// Not sure if it's needed
        /// </summary>
        /// <param name="userID"></param>
        /// <returns></returns>
        bool ResetAvatar(UUID userID);

        /// <summary>
        /// These methods raison d'etre: 
        /// No need to send the entire avatar data (SetAvatar) for changing attachments
        /// </summary>
        /// <param name="userID"></param>
        /// <param name="attach"></param>
        /// <returns></returns>
        bool SetItems(UUID userID, string[] names, string[] values);
        bool RemoveItems(UUID userID, string[] names);
    }

    /// <summary>
    /// Each region/client that uses avatars will have a data structure
    /// of this type representing the avatars.
    /// </summary>
    public class AvatarData
    {
        // This pretty much determines which name/value pairs will be
        // present below. The name/value pair describe a part of
        // the avatar. For SL avatars, these would be "shape", "texture1",
        // etc. For other avatars, they might be "mesh", "skin", etc.
        // The value portion is a URL that is expected to resolve to an
        // asset of the type required by the handler for that field.
        // It is required that regions can access these URLs. Allowing
        // direct access by a viewer is not required, and, if provided,
        // may be read-only. A "naked" UUID can be used to refer to an
        // asset int he current region's asset service, which is not
        // portable, but allows legacy appearance to continue to
        // function. Closed, LL-based  grids will never need URLs here.

        public int AvatarType;
        public Dictionary<string,string> Data;

        public AvatarData()
        {
        }

        public AvatarData(Dictionary<string, object> kvp)
        {
            Data = new Dictionary<string, string>();

            if (kvp.ContainsKey("AvatarType"))
                Int32.TryParse(kvp["AvatarType"].ToString(), out AvatarType);

            foreach (KeyValuePair<string, object> _kvp in kvp)
            {
                if (_kvp.Value != null)
                    Data[_kvp.Key] = _kvp.Value.ToString();
            }
        }

        /// <summary>
        /// </summary>
        /// <returns></returns>
        public Dictionary<string, object> ToKeyValuePairs()
        {
            Dictionary<string, object> result = new Dictionary<string, object>();

            result["AvatarType"] = AvatarType.ToString();
            foreach (KeyValuePair<string, string> _kvp in Data)
            {
                if (_kvp.Value != null)
                    result[_kvp.Key] = _kvp.Value;
            }
            return result;
        }

        public AvatarData(AvatarAppearance appearance)
        {
            AvatarType = 1; // SL avatars
            Data = new Dictionary<string, string>();

            Data["Serial"] = appearance.Serial.ToString();
            // Wearables
            Data["AvatarHeight"] = appearance.AvatarHeight.ToString();

            for (int i = 0 ; i < AvatarWearable.MAX_WEARABLES ; i++)
            {
                for (int j = 0 ; j < appearance.Wearables[i].Count ; j++)
                {
                    string fieldName = String.Format("Wearable {0}:{1}", i, j);
                    Data[fieldName] = String.Format("{0}:{1}",
                            appearance.Wearables[i][j].ItemID.ToString(),
                            appearance.Wearables[i][j].AssetID.ToString());
                }
            }

            // Visual Params
            string[] vps = new string[AvatarAppearance.VISUALPARAM_COUNT];
            byte[] binary = appearance.VisualParams;

            for (int i = 0 ; i < AvatarAppearance.VISUALPARAM_COUNT ; i++)
            {
                vps[i] = binary[i].ToString();
            }

            Data["VisualParams"] = String.Join(",", vps);

            // Attachments
            List<AvatarAttachment> attachments = appearance.GetAttachments();
            Dictionary<int, List<string>> atts = new Dictionary<int, List<string>>();
            foreach (AvatarAttachment attach in attachments)
            {
                if (attach.ItemID != UUID.Zero)
                {
                    if (!atts.ContainsKey(attach.AttachPoint))
                        atts[attach.AttachPoint] = new List<string>();
                    atts[attach.AttachPoint].Add(attach.ItemID.ToString());
                }
            }
            foreach (KeyValuePair<int, List<string>> kvp in atts)
                Data["_ap_" + kvp.Key] = string.Join(",", kvp.Value.ToArray());
        }

        public AvatarAppearance ToAvatarAppearance()
        {
            AvatarAppearance appearance = new AvatarAppearance();

            if (Data.Count == 0)
                return appearance;

            appearance.ClearWearables();
            try
            {
                if (Data.ContainsKey("Serial"))
                    appearance.Serial = Int32.Parse(Data["Serial"]);

                if (Data.ContainsKey("AvatarHeight"))
                    appearance.AvatarHeight = float.Parse(Data["AvatarHeight"]);

                // Legacy Wearables
                if (Data.ContainsKey("BodyItem"))
                    appearance.Wearables[AvatarWearable.BODY].Wear(
                            UUID.Parse(Data["BodyItem"]),
                            UUID.Parse(Data["BodyAsset"]));

                if (Data.ContainsKey("SkinItem"))
                    appearance.Wearables[AvatarWearable.SKIN].Wear(
                            UUID.Parse(Data["SkinItem"]),
                            UUID.Parse(Data["SkinAsset"]));

                if (Data.ContainsKey("HairItem"))
                    appearance.Wearables[AvatarWearable.HAIR].Wear(
                            UUID.Parse(Data["HairItem"]),
                            UUID.Parse(Data["HairAsset"]));

                if (Data.ContainsKey("EyesItem"))
                    appearance.Wearables[AvatarWearable.EYES].Wear(
                            UUID.Parse(Data["EyesItem"]),
                            UUID.Parse(Data["EyesAsset"]));

                if (Data.ContainsKey("ShirtItem"))
                    appearance.Wearables[AvatarWearable.SHIRT].Wear(
                            UUID.Parse(Data["ShirtItem"]),
                            UUID.Parse(Data["ShirtAsset"]));

                if (Data.ContainsKey("PantsItem"))
                    appearance.Wearables[AvatarWearable.PANTS].Wear(
                            UUID.Parse(Data["PantsItem"]),
                            UUID.Parse(Data["PantsAsset"]));

                if (Data.ContainsKey("ShoesItem"))
                    appearance.Wearables[AvatarWearable.SHOES].Wear(
                            UUID.Parse(Data["ShoesItem"]),
                            UUID.Parse(Data["ShoesAsset"]));

                if (Data.ContainsKey("SocksItem"))
                    appearance.Wearables[AvatarWearable.SOCKS].Wear(
                            UUID.Parse(Data["SocksItem"]),
                            UUID.Parse(Data["SocksAsset"]));

                if (Data.ContainsKey("JacketItem"))
                    appearance.Wearables[AvatarWearable.JACKET].Wear(
                            UUID.Parse(Data["JacketItem"]),
                            UUID.Parse(Data["JacketAsset"]));

                if (Data.ContainsKey("GlovesItem"))
                    appearance.Wearables[AvatarWearable.GLOVES].Wear(
                            UUID.Parse(Data["GlovesItem"]),
                            UUID.Parse(Data["GlovesAsset"]));

                if (Data.ContainsKey("UnderShirtItem"))
                    appearance.Wearables[AvatarWearable.UNDERSHIRT].Wear(
                            UUID.Parse(Data["UnderShirtItem"]),
                            UUID.Parse(Data["UnderShirtAsset"]));

                if (Data.ContainsKey("UnderPantsItem"))
                    appearance.Wearables[AvatarWearable.UNDERPANTS].Wear(
                            UUID.Parse(Data["UnderPantsItem"]),
                            UUID.Parse(Data["UnderPantsAsset"]));

                if (Data.ContainsKey("SkirtItem"))
                    appearance.Wearables[AvatarWearable.SKIRT].Wear(
                            UUID.Parse(Data["SkirtItem"]),
                            UUID.Parse(Data["SkirtAsset"]));

                if (Data.ContainsKey("VisualParams"))
                {
                    string[] vps = Data["VisualParams"].Split(new char[] {','});
                    byte[] binary = new byte[AvatarAppearance.VISUALPARAM_COUNT];

                    for (int i = 0 ; i < vps.Length && i < binary.Length ; i++)
                        binary[i] = (byte)Convert.ToInt32(vps[i]);
                    
                    appearance.VisualParams = binary;
                }

                // New style wearables
                foreach (KeyValuePair<string, string> _kvp in Data)
                {
                    if (_kvp.Key.StartsWith("Wearable "))
                    {
                        string wearIndex = _kvp.Key.Substring(9);
                        string[] wearIndices = wearIndex.Split(new char[] {':'});
                        int index = Convert.ToInt32(wearIndices[0]);

                        string[] ids = _kvp.Value.Split(new char[] {':'});
                        UUID itemID = new UUID(ids[0]);
                        UUID assetID = new UUID(ids[1]);

                        appearance.Wearables[index].Add(itemID, assetID);
                    }
                }

                // Attachments
                Dictionary<string, string> attchs = new Dictionary<string, string>();
                foreach (KeyValuePair<string, string> _kvp in Data)
                    if (_kvp.Key.StartsWith("_ap_"))
                        attchs[_kvp.Key] = _kvp.Value;

                foreach (KeyValuePair<string, string> _kvp in attchs)
                {
                    string pointStr = _kvp.Key.Substring(4);
                    int point = 0;
                    if (!Int32.TryParse(pointStr, out point))
                        continue;

                    List<string> idList = new List<string>(_kvp.Value.Split(new char[] {','}));

                    appearance.SetAttachment(point, UUID.Zero, UUID.Zero);
                    foreach (string id in idList)
                    {
                        UUID uuid = UUID.Zero;
                        UUID.TryParse(id, out uuid);

                        appearance.SetAttachment(point | 0x80, uuid, UUID.Zero);
                    }
                }

                if (appearance.Wearables[AvatarWearable.BODY].Count == 0)
                    appearance.Wearables[AvatarWearable.BODY].Wear(
                            AvatarWearable.DefaultWearables[
                            AvatarWearable.BODY][0]);

                if (appearance.Wearables[AvatarWearable.SKIN].Count == 0)
                    appearance.Wearables[AvatarWearable.SKIN].Wear(
                            AvatarWearable.DefaultWearables[
                            AvatarWearable.SKIN][0]);

                if (appearance.Wearables[AvatarWearable.HAIR].Count == 0)
                    appearance.Wearables[AvatarWearable.HAIR].Wear(
                            AvatarWearable.DefaultWearables[
                            AvatarWearable.HAIR][0]);

                if (appearance.Wearables[AvatarWearable.EYES].Count == 0)
                    appearance.Wearables[AvatarWearable.EYES].Wear(
                            AvatarWearable.DefaultWearables[
                            AvatarWearable.EYES][0]);
            }
            catch
            {
                // We really should report something here, returning null
                // will at least break the wrapper
                return null;
            }

            return appearance;
        }
    }
}