Merge pull request #825 from eduardosmaniotto/feature/configurable-npc-buffs

feature: configurable npc buffs
(cherry picked from commit 6a061fcad756e644dadf3721e84e3cce2a25bceb)

src/DataModel/Configuration/Buff.cs

@@ -0,0 +1,30 @@
+// <copyright file="Buff.cs" company="MUnique">
+// Licensed under the MIT License. See LICENSE file in the project root for full license information.
+// </copyright>
+
+namespace MUnique.OpenMU.DataModel.Configuration;
+
+using MUnique.OpenMU.Annotations;
+
+/// <summary>
+/// A buff which can be granted by an NPC.
+/// </summary>
+[Cloneable]
+public partial class Buff
+{
+    /// <summary>
+    /// Gets or sets the magic effect definition which defines the buff and its duration.
+    /// </summary>
+    [MemberOfAggregate]
+    public virtual MagicEffectDefinition? MagicEffectDefinition { get; set; }
+
+    /// <summary>
+    /// Gets or sets the minimum character level to be allowed to receive this buff. Optional.
+    /// </summary>
+    public int? MinimumLevel { get; set; }
+
+    /// <summary>
+    /// Gets or sets the maximum character level to be allowed to receive this buff. Optional.
+    /// </summary>
+    public int? MaximumLevel { get; set; }
+}

src/DataModel/Configuration/MonsterDefinition.cs

@@ -328,6 +328,12 @@ public partial class MonsterDefinition
     [MemberOfAggregate]
     public virtual ICollection<QuestDefinition> Quests { get; protected set; } = null!;
 
+    /// <summary>
+    /// Gets or sets the buffs which can be granted by this npc.
+    /// </summary>
+    [MemberOfAggregate]
+    public virtual ICollection<Buff> Buffs { get; protected set; } = null!;
+
     /// <summary>
     /// Attribute default accessor.
     /// </summary>