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path: root/OpenSim/Region/Framework/Interfaces/INPCModule.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 OpenMetaverse;
using OpenSim.Framework;
using OpenSim.Region.Framework.Scenes;

namespace OpenSim.Region.Framework.Interfaces
{
    public interface INPCModule
    {
        /// <summary>
        /// Create an NPC
        /// </summary>
        /// <param name="firstname"></param>
        /// <param name="lastname"></param>
        /// <param name="position"></param>
        /// <param name="scene"></param>
        /// <param name="appearance">The avatar appearance to use for the new NPC.</param>
        /// <returns>The UUID of the ScenePresence created.</returns>
        UUID CreateNPC(string firstname, string lastname, Vector3 position, UUID owner, Scene scene, AvatarAppearance appearance);

        /// <summary>
        /// Check if the agent is an NPC.
        /// </summary>
        /// <param name="agentID"></param>
        /// <param name="scene"></param>
        /// <returns>True if the agent is an NPC in the given scene.  False otherwise.</returns>
        bool IsNPC(UUID agentID, Scene scene);

        /// <summary>
        /// Check if the caller has permission to manipulate the given NPC.
        /// </summary>
        /// <param name="npcID"></param>
        /// <param name="callerID"></param>
        /// <returns>true if they do, false if they don't or if there's no NPC with the given ID.</returns>
        bool CheckPermissions(UUID npcID, UUID callerID);

        /// <summary>
        /// Set the appearance for an NPC.
        /// </summary>
        /// <param name="agentID"></param>
        /// <param name="appearance"></param>
        /// <param name="scene"></param>
        /// <returns>True if the operation succeeded, false if there was no such agent or the agent was not an NPC</returns>
        bool SetNPCAppearance(UUID agentID, AvatarAppearance appearance, Scene scene);

        /// <summary>
        /// Move an NPC to a target over time.
        /// </summary>
        /// <param name="agentID">The UUID of the NPC</param>
        /// <param name="scene"></param>
        /// <param name="pos"></param>
        /// <param name="noFly">
        /// If true, then the avatar will attempt to walk to the location even if it's up in the air.
        /// This is to allow walking on prims.
        /// </param>
        /// <param name="landAtTarget">
        /// If true and the avatar is flying when it reaches the target, land.
        /// </param>
        /// <returns>True if the operation succeeded, false if there was no such agent or the agent was not an NPC</returns>
        bool MoveToTarget(UUID agentID, Scene scene, Vector3 pos, bool noFly, bool landAtTarget);

        /// <summary>
        /// Stop the NPC's current movement.
        /// </summary>
        /// <param name="agentID">The UUID of the NPC</param>
        /// <param name="scene"></param>
        /// <returns>True if the operation succeeded, false if there was no such agent or the agent was not an NPC</returns>
        bool StopMoveToTarget(UUID agentID, Scene scene);

        /// <summary>
        /// Get the NPC to say something.
        /// </summary>
        /// <param name="agentID">The UUID of the NPC</param>
        /// <param name="scene"></param>
        /// <param name="text"></param>
        /// <returns>True if the operation succeeded, false if there was no such agent or the agent was not an NPC</returns>
        bool Say(UUID agentID, Scene scene, string text);

        /// <summary>
        /// Sit the NPC.
        /// </summary>
        /// <param name="agentID"></param>
        /// <param name="partID"></param>
        /// <param name="scene"></param>
        /// <returns>true if the sit succeeded, false if not</returns>
        bool Sit(UUID agentID, UUID partID, Scene scene);

        /// <summary>
        /// Stand a sitting NPC.
        /// </summary>
        /// <param name="agentID"></param>
        /// <param name="scene"></param>
        /// <returns>true if the stand succeeded, false if not</returns>
        bool Stand(UUID agentID, Scene scene);

        /// <summary>
        /// Delete an NPC.
        /// </summary>
        /// <param name="agentID">The UUID of the NPC</param>
        /// <param name="scene"></param>
        /// <returns>True if the operation succeeded, false if there was no such agent or the agent was not an NPC</returns>
        bool DeleteNPC(UUID agentID, Scene scene);

        /// <summary>
        /// Get the owner of a NPC
        /// </summary>
        /// <param name="agentID">The UUID of the NPC</param>
        /// <returns>UUID of owner if the NPC exists, UUID.Zero  if there was no such agent, the agent is unowned  or the agent was not an NPC</returns>
        UUID GetOwner(UUID agentID);
    }
}