Add GetClassnameByDefinitionIndex and GetDefinitionIndexByClassname helper methods

Author: T3Marius

managed/src/SwiftlyS2.Core/Modules/Helpers/Helpers.cs

@@ -7,7 +7,7 @@ namespace SwiftlyS2.Core.Services;
 
 internal class HelpersService : IHelpers
 {
-    private static readonly Dictionary<string, int> WeaponItemDefinitionIndices = new()
+    public static readonly Dictionary<string, int> WeaponItemDefinitionIndices = new()
     {
         // Pistols
         { "weapon_deagle", 1 },
@@ -105,4 +105,25 @@ internal class HelpersService : IHelpers
         return GetWeaponCSDataFromKey(-1, itemDefinitionIndex.ToString());
     }
 
+    public string? GetClassnameByDefinitionIndex(int itemDefinitionIndex)
+    {
+        foreach (var kvp in WeaponItemDefinitionIndices)
+        {
+            if (kvp.Value == itemDefinitionIndex)
+            {
+                return kvp.Key;
+            }
+        }
+        return null;
+    }
+
+    public int? GetDefinitionIndexByClassname(string classname)
+    {
+        if (WeaponItemDefinitionIndices.TryGetValue(classname, out int index))
+        {
+            return index;
+        }
+        return null;
+    }
+
 }

managed/src/SwiftlyS2.Shared/Modules/Helpers/IHelpers.cs

@@ -102,5 +102,18 @@ public interface IHelpers
     /// <returns>The weapon vdata.</returns>
     public CCSWeaponBaseVData? GetWeaponCSDataFromKey(int itemDefinitionIndex);
 
+    /// <summary>
+    /// Get weapon classname from item definition index.
+    /// </summary>
+    /// <param name="itemDefinitionIndex">The item definition index of the weapon.</param>
+    /// <returns>The weapon classname (e.g., "weapon_awp") or null if not found.</returns>
+    public string? GetClassnameByDefinitionIndex(int itemDefinitionIndex);
+
+    /// <summary>
+    /// Get item definition index from weapon classname.
+    /// </summary>
+    /// <param name="classname">The weapon classname (e.g., "weapon_awp").</param>
+    /// <returns>The item definition index or null if not found.</returns>
+    public int? GetDefinitionIndexByClassname(string classname);
 
 }