baseline: OpenMU upstream b5a0961 (fresh source)

src/GameLogic/PlugIns/ChatCommands/SkinChatCommandPlugIn.cs

@@ -0,0 +1,43 @@
+// <copyright file="SkinChatCommandPlugIn.cs" company="MUnique">
+// Licensed under the MIT License. See LICENSE file in the project root for full license information.
+// </copyright>
+
+namespace MUnique.OpenMU.GameLogic.PlugIns.ChatCommands;
+
+using System.Runtime.InteropServices;
+using MUnique.OpenMU.AttributeSystem;
+using MUnique.OpenMU.GameLogic.Attributes;
+using MUnique.OpenMU.GameLogic.PlugIns.ChatCommands.Arguments;
+using MUnique.OpenMU.Persistence.BasicModel;
+using MUnique.OpenMU.PlugIns;
+
+/// <summary>
+/// A chat command plugin which handles skin commands.
+/// </summary>
+[Guid("4735CC2C-9E5D-457A-92CB-9D765F74FDFB")]
+[PlugIn]
+[Display(Name = nameof(PlugInResources.SkinChatCommandPlugIn_Name), Description = nameof(PlugInResources.SkinChatCommandPlugIn_Description), ResourceType = typeof(PlugInResources))]
+[ChatCommandHelp(Command, typeof(SkinChatCommandArgs), CharacterStatus.GameMaster)]
+public class SkinChatCommandPlugIn : ChatCommandPlugInBase<SkinChatCommandArgs>
+{
+    private const string Command = "/skin";
+
+    /// <inheritdoc />
+    public override string Key => Command;
+
+    /// <inheritdoc/>
+    public override CharacterStatus MinCharacterStatusRequirement => CharacterStatus.GameMaster;
+
+    /// <inheritdoc/>
+    protected override async ValueTask DoHandleCommandAsync(Player gameMaster, SkinChatCommandArgs arguments)
+    {
+        if (gameMaster?.Attributes is { } attributes
+            && attributes.GetComposableAttribute(Stats.TransformationSkin) is { } attribute)
+        {
+            attribute.Elements.ToList().ForEach(attribute.RemoveElement);
+            attribute.AddElement(attributes.CreateElement(new PowerUpDefinitionValue { AggregateType = AggregateType.AddRaw, Value = arguments.SkinNumber }, Stats.TransformationSkin));
+
+            attributes[Stats.TransformationSkin] = arguments.SkinNumber;
+        }
+    }
+}