Added plugin to update wrong elf bow requirements

src/GameServer/ClientVersionResolver.cs

@@ -28,7 +28,12 @@ public static class ClientVersionResolver
     /// <param name="clientVersion">The client version.</param>
     public static void Register(Span<byte> versionBytes, ClientVersion clientVersion)
     {
-        var key = CalculateVersionValue(versionBytes);
+        long key = 0;
+        if (versionBytes.Length >= 5)
+        {
+            key = CalculateVersionValue(versionBytes);
+        }
+
         Versions[key] = clientVersion;
         if (!VersionBytes.ContainsKey(clientVersion))
         {

src/Persistence/Initialization/Updates/FixItemRequirementsPlugIn.cs

@@ -0,0 +1,128 @@
+// <copyright file="FixItemRequirementsPlugIn.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.AttributeSystem;
+using MUnique.OpenMU.DataModel.Configuration;
+using MUnique.OpenMU.DataModel.Configuration.Items;
+using MUnique.OpenMU.GameLogic.Attributes;
+using MUnique.OpenMU.PlugIns;
+
+/// <summary>
+/// Updates some item requirements for elf bows which were intialized wrongly.
+/// </summary>
+[PlugIn(PlugInName, PlugInDescription)]
+[Guid("9E8DB2CB-1972-40D3-9129-6964ABFEB4DC")]
+public class FixItemRequirementsPlugIn : UpdatePlugInBase
+{
+    private static readonly List<(int Group, int Number, int StrengthRequirement, int AgilityRequirement, int EnergyRequirement, int VitalityRequirement)> RequirementCorrections =
+    [
+        (4, 0, 20, 80, 0, 0), // Short Bow
+        (4, 1, 30, 90, 0, 0), // Bow
+        (4, 2, 30, 90, 0, 0), // Elven Bow
+        (4, 3, 30, 90, 0, 0), // Battle Bow
+        (4, 4, 30, 100, 0, 0), // Tiger Bow
+        (4, 5, 30, 100, 0, 0), // Silver Bow
+        (4, 6, 40, 150, 0, 0), // Chaos Nature Bow
+
+        /*
+         These are handled different, so they don't need to be corrected.
+         See ItemExtensions.GetRequirement.
+        (15, 0, 0, 0, 100, 0), // Scroll of Poison
+        (15, 1, 0, 0, 100, 0), // Scroll of Meteorite
+        (15, 2, 0, 0, 100, 0), // Scroll of Lighting
+        (15, 3, 0, 0, 100, 0), // Scroll of Fire Ball
+        (15, 4, 0, 0, 100, 0), // Scroll of Flame
+        (15, 5, 0, 0, 100, 0), // Scroll of Teleport
+        (15, 6, 0, 0, 100, 0), // Scroll of Ice
+        (15, 7, 0, 0, 100, 0), // Scroll of Twister
+        (15, 8, 0, 0, 100, 0), // Scroll of Evil Spirit
+        (15, 9, 0, 0, 100, 0), // Scroll of Hellfire
+        (15, 10, 0, 0, 100, 0), // Scroll of Power Wave
+        (15, 11, 0, 0, 110, 0), // Scroll of Aqua Beam
+        (15, 12, 0, 0, 150, 0), // Scroll of Cometfall
+        (15, 13, 0, 0, 200, 0), // Scroll of Inferno
+        (15, 14, 0, 0, 188, 0), // Scroll of Teleport Ally
+        (15, 15, 0, 0, 126, 0), // Scroll of Soul Barrier
+        (15, 16, 0, 0, 243, 0), // Scroll of Decay
+        (15, 17, 0, 0, 223, 0), // Scroll of Ice Storm
+        (15, 18, 0, 0, 258, 0), // Scroll of Nova
+
+        (15, 19, 0, 0, 75, 0), // Chain Lightning Parchment
+        (15, 20, 0, 0, 93, 0), // Drain Life Parchment
+        (15, 21, 0, 0, 216, 0), // Lightning Shock Parchment
+        (15, 22, 0, 0, 111, 0), // Damage Reflection Parchment
+        (15, 23, 0, 0, 181, 0), // Berserker Parchment
+        (15, 24, 0, 0, 100, 0), // Sleep Parchment
+        (15, 26, 0, 0, 173, 0), // Weakness Parchment
+        (15, 27, 0, 0, 201, 0), // Innovation Parchment
+        (15, 28, 0, 0, 118, 0), // Scroll of Wizardry Enhance
+        (15, 29, 0, 0, 118, 0), // Scroll of Gigantic Storm
+        (15, 34, 0, 0, ?, 0), // Ignore Defense Parchment
+        (15, 35, 0, 0, ?, 0), // Increase Health Parchment
+        (15, 36, 0, 0, ?, 0), // Increase Block Parchment
+        */
+    ];
+
+    /// <summary>
+    /// The plug in name.
+    /// </summary>
+    internal const string PlugInName = "Fix Item Requirements (Elf Bows)";
+
+    /// <summary>
+    /// The plug in description.
+    /// </summary>
+    internal const string PlugInDescription = "Updates some item requirements for elf bows which were intialized wrongly.";
+
+    /// <inheritdoc />
+    public override UpdateVersion Version => UpdateVersion.FixItemRequirements;
+
+    /// <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 => true;
+
+    /// <inheritdoc />
+    public override DateTime CreatedAt => new(2024, 11, 03, 18, 0, 0, DateTimeKind.Utc);
+
+    /// <inheritdoc />
+    protected override async ValueTask ApplyAsync(IContext context, GameConfiguration gameConfiguration)
+    {
+        foreach (var reqUpdate in RequirementCorrections)
+        {
+            var item = gameConfiguration.Items.First(x => x.Number == reqUpdate.Number && x.Group == reqUpdate.Group);
+            UpdateRequirement(Stats.TotalStrengthRequirementValue, reqUpdate.StrengthRequirement);
+            UpdateRequirement(Stats.TotalAgilityRequirementValue, reqUpdate.AgilityRequirement);
+            UpdateRequirement(Stats.TotalEnergyRequirementValue, reqUpdate.EnergyRequirement);
+            UpdateRequirement(Stats.TotalVitalityRequirementValue, reqUpdate.VitalityRequirement);
+
+            void UpdateRequirement(AttributeDefinition stat, int newValue)
+            {
+                var requirement = item.Requirements.FirstOrDefault(r => r.Attribute == stat);
+                if (requirement is null && newValue == 0)
+                {
+                    return;
+                }
+
+                if (requirement is null)
+                {
+                    requirement = context.CreateNew<AttributeRequirement>();
+                    requirement.Attribute = stat.GetPersistent(gameConfiguration);
+                    item.Requirements.Add(requirement);
+                }
+
+                requirement.MinimumValue = newValue;
+            }
+        }
+    }
+}

src/Persistence/Initialization/Updates/UpdateVersion.cs

@@ -197,4 +197,9 @@ public enum UpdateVersion
     /// The version of the <see cref="AddAreaSkillSettingsUpdatePlugIn"/>.
     /// </summary>
     AddAreaSkillSettings = 38,
+
+    /// <summary>
+    /// The version of the <see cref="FixItemRequirementsPlugIn"/>.
+    /// </summary>
+    FixItemRequirements = 38,
 }