baseline: OpenMU upstream b5a0961 (fresh source)

src/GameServer/MessageHandler/TalkNpcHandlerPlugInBase.cs

@@ -0,0 +1,37 @@
+// <copyright file="TalkNpcHandlerPlugInBase.cs" company="MUnique">
+// Licensed under the MIT License. See LICENSE file in the project root for full license information.
+// </copyright>
+
+namespace MUnique.OpenMU.GameServer.MessageHandler;
+
+using MUnique.OpenMU.GameLogic;
+using MUnique.OpenMU.GameLogic.NPC;
+using MUnique.OpenMU.GameLogic.PlayerActions;
+using MUnique.OpenMU.Network.Packets.ClientToServer;
+
+/// <summary>
+/// Handler for talk npc request packets.
+/// </summary>
+internal abstract class TalkNpcHandlerPlugInBase : IPacketHandlerPlugIn
+{
+    /// <inheritdoc/>
+    public virtual bool IsEncryptionExpected => false;
+
+    /// <inheritdoc/>
+    public byte Key => TalkToNpcRequest.Code;
+
+    /// <summary>
+    /// Gets the talk NPC action.
+    /// </summary>
+    protected abstract TalkNpcAction TalkNpcAction { get; }
+
+    /// <inheritdoc/>
+    public async ValueTask HandlePacketAsync(Player player, Memory<byte> packet)
+    {
+        TalkToNpcRequest message = packet;
+        if (player.CurrentMap?.GetObject(message.NpcId) is NonPlayerCharacter npc)
+        {
+            await this.TalkNpcAction.TalkToNpcAsync(player, npc).ConfigureAwait(false);
+        }
+    }
+}