From 80ec466ab1a1da2d18bb0719770f19f67568e05e Mon Sep 17 00:00:00 2001
From: Acentech Dev <acentech_dev@affinitybox.com>
Date: Sun, 19 Jul 2026 14:08:01 +0300
Subject: [PATCH] fix(maps): Arkania is map number 82 (client World = number+1
 off-by-one)

Client tried to load World84 for map 83; MU client world index is
server map number + 1 (Lorencia 0 -> World1). Arkania client assets
are World83, so the server map number is 82 and the terrain resource
is Terrain83.att (number+1).
---
 ...MUnique.OpenMU.Persistence.Initialization.csproj |   4 ++--
 .../Resources/{Terrain84.att => Terrain83.att}      | Bin
 .../Initialization/VersionSeasonSix/Maps/Arkania.cs |   6 ++++--
 3 files changed, 6 insertions(+), 4 deletions(-)
 rename src/Persistence/Initialization/Resources/{Terrain84.att => Terrain83.att} (100%)

diff --git a/src/Persistence/Initialization/MUnique.OpenMU.Persistence.Initialization.csproj b/src/Persistence/Initialization/MUnique.OpenMU.Persistence.Initialization.csproj
index 104f754..310b825 100644
--- a/src/Persistence/Initialization/MUnique.OpenMU.Persistence.Initialization.csproj
+++ b/src/Persistence/Initialization/MUnique.OpenMU.Persistence.Initialization.csproj
@@ -24,7 +24,7 @@
     <None Remove="Resources\075_Terrain5.att" />
     <None Remove="Resources\075_Terrain8.att" />
     <None Remove="Resources\Terrain1.att" />
-    <None Remove="Resources\Terrain84.att" />
+    <None Remove="Resources\Terrain83.att" />
     <None Remove="Resources\Terrain10_1.att" />
     <None Remove="Resources\Terrain10_2.att" />
     <None Remove="Resources\Terrain10_3.att" />
@@ -104,7 +104,7 @@
     <EmbeddedResource Include="Resources\075_Terrain5.att" />
     <EmbeddedResource Include="Resources\075_Terrain8.att" />
     <EmbeddedResource Include="Resources\Terrain1.att" />
-    <EmbeddedResource Include="Resources\Terrain84.att" />
+    <EmbeddedResource Include="Resources\Terrain83.att" />
     <EmbeddedResource Include="Resources\Terrain10_4.att" />
     <EmbeddedResource Include="Resources\Terrain10_3.att" />
     <EmbeddedResource Include="Resources\Terrain10_2.att" />
diff --git a/src/Persistence/Initialization/Resources/Terrain84.att b/src/Persistence/Initialization/Resources/Terrain83.att
similarity index 100%
rename from src/Persistence/Initialization/Resources/Terrain84.att
rename to src/Persistence/Initialization/Resources/Terrain83.att
diff --git a/src/Persistence/Initialization/VersionSeasonSix/Maps/Arkania.cs b/src/Persistence/Initialization/VersionSeasonSix/Maps/Arkania.cs
index ebd1983..c65ca6a 100644
--- a/src/Persistence/Initialization/VersionSeasonSix/Maps/Arkania.cs
+++ b/src/Persistence/Initialization/VersionSeasonSix/Maps/Arkania.cs
@@ -13,9 +13,11 @@ using MUnique.OpenMU.DataModel.Configuration;
 internal class Arkania : BaseMapInitializer
 {
     /// <summary>
-    /// The Number of the Map.
+    /// The Number of the Map. OpenMU map numbers are 0-based; the MU client loads
+    /// world folder <c>World{Number + 1}</c> (e.g. Lorencia 0 -> World1). Arkania's
+    /// client assets are World83, so the server map number is 82.
     /// </summary>
-    internal const byte Number = 83;
+    internal const byte Number = 82;
 
     /// <summary>
     /// The Name of the Map.