baseline: OpenMU upstream b5a0961 (fresh source)

src/Persistence/Initialization/Updates/FixAreaSkillsUpdatePlugIn.cs

@@ -0,0 +1,101 @@
+// <copyright file="FixAreaSkillsUpdatePlugIn.cs" company="MUnique">
+// Licensed under the MIT License. See LICENSE file in the project root for full license information.
+// </copyright>
+
+namespace MUnique.OpenMU.Persistence.Initialization.Updates;
+
+using System.Runtime.InteropServices;
+using MUnique.OpenMU.DataModel.Configuration;
+using MUnique.OpenMU.Persistence.Initialization.Skills;
+using MUnique.OpenMU.PlugIns;
+
+/// <summary>
+/// This update fixes area skills' range, effect radius, and delay issues.
+/// Hellfire, Decay, and Ice Storm had missing area skill settings causing incorrect hit radius.
+/// Ice Storm had an incorrect 200ms delay between hits.
+/// </summary>
+[PlugIn]
+[Display(Name = PlugInName, Description = PlugInDescription)]
+[Guid("B9938E4D-8F63-48DF-AE45-6739D1E2A8C7")]
+public class FixAreaSkillsUpdatePlugIn : UpdatePlugInBase
+{
+    /// <summary>
+    /// The plug in name.
+    /// </summary>
+    internal const string PlugInName = "Fix Area Skills";
+
+    /// <summary>
+    /// The plug in description.
+    /// </summary>
+    internal const string PlugInDescription = "Fixes Hellfire, Decay, and Ice Storm skills' range, effect radius, and delay.";
+
+    /// <inheritdoc />
+    public override UpdateVersion Version => UpdateVersion.FixAreaSkills;
+
+    /// <inheritdoc />
+    public override string DataInitializationKey => VersionSeasonSix.DataInitialization.Id;
+
+    /// <inheritdoc />
+    public override string Name => PlugInName;
+
+    /// <inheritdoc />
+    public override string Description => PlugInDescription;
+
+    /// <inheritdoc />
+    public override bool IsMandatory => false;
+
+    /// <inheritdoc />
+    public override DateTime CreatedAt => new(2026, 04, 09, 12, 0, 0, DateTimeKind.Utc);
+
+    /// <inheritdoc />
+    protected override async ValueTask ApplyAsync(IContext context, GameConfiguration gameConfiguration)
+    {
+        // Fix Hellfire Strengthener
+        var hellfireStrengthener = gameConfiguration.Skills.FirstOrDefault(s => s.Number == (short)SkillNumber.HellfireStrengthener);
+        if (hellfireStrengthener != null)
+        {
+            hellfireStrengthener.Range = 4;
+            hellfireStrengthener.AttackDamage = 3;
+
+            if (hellfireStrengthener.AreaSkillSettings == null)
+            {
+                var areaSkillSettings = context.CreateNew<AreaSkillSettings>();
+                hellfireStrengthener.AreaSkillSettings = areaSkillSettings;
+                areaSkillSettings.EffectRange = 2;
+            }
+        }
+
+        // Fix Decay Strengthener
+        var decayStrengthener = gameConfiguration.Skills.FirstOrDefault(s => s.Number == (short)SkillNumber.DecayStrengthener);
+        if (decayStrengthener != null)
+        {
+            decayStrengthener.Range = 6;
+
+            if (decayStrengthener.AreaSkillSettings == null)
+            {
+                var areaSkillSettings = context.CreateNew<AreaSkillSettings>();
+                decayStrengthener.AreaSkillSettings = areaSkillSettings;
+                areaSkillSettings.EffectRange = 2;
+            }
+        }
+
+        // Fix base Decay skill
+        var decay = gameConfiguration.Skills.FirstOrDefault(s => s.Number == (short)SkillNumber.Decay);
+        if (decay != null)
+        {
+            if (decay.AreaSkillSettings == null)
+            {
+                var areaSkillSettings = context.CreateNew<AreaSkillSettings>();
+                decay.AreaSkillSettings = areaSkillSettings;
+                areaSkillSettings.EffectRange = 2;
+            }
+        }
+
+        // Fix Ice Storm - remove incorrect 200ms delay
+        var iceStorm = gameConfiguration.Skills.FirstOrDefault(s => s.Number == (short)SkillNumber.IceStorm);
+        if (iceStorm?.AreaSkillSettings != null)
+        {
+            iceStorm.AreaSkillSettings.DelayBetweenHits = TimeSpan.Zero;
+        }
+    }
+}