Fixed Ghost asteroid issue on multiplayer servers.

SEWorldGenPlugin/Patches/MultiplayerGhostAsteroidPatch.cs

@@ -0,0 +1,37 @@
+using HarmonyLib;
+using Sandbox.Game.Multiplayer;
+using Sandbox.Game.World;
+using SEWorldGenPlugin.Session;
+using VRage.Game;
+
+namespace SEWorldGenPlugin.Patches
+{
+    /// <summary>
+    /// Patch class to patch the client side procedural generation on a multiplayer server.
+    /// If a player connects to a server, the client requests the server world settings. If the procedural density is not 0, the client will generate asteroids.
+    /// </summary>
+    public class MultiplayerGhostAsteroidPatch : HarmonyPatchBase
+    {
+        public MultiplayerGhostAsteroidPatch() : base("Multiplayer ghost asteroid fix")
+        {
+        }
+
+        public static void Postfix(bool includeEntities, bool isClientRequest, ref MyObjectBuilder_World __result)
+        {
+            if (Sync.IsServer && isClientRequest && MySettingsSession.Static.Settings.GeneratorSettings.AsteroidGenerator == ObjectBuilders.AsteroidGenerationMethod.PLUGIN)
+            {
+                __result.Checkpoint.Settings.ProceduralDensity = 0;
+            }
+        }
+
+        public override void ApplyPatch(Harmony harmony)
+        {
+            base.ApplyPatch(harmony);
+
+            var baseMethod = typeof(MySession).GetMethod("GetWorld", System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance);
+            var postfix = typeof(MultiplayerGhostAsteroidPatch).GetMethod("Postfix");
+
+            harmony.Patch(baseMethod, postfix: new HarmonyMethod(postfix));
+        }
+    }
+}

SEWorldGenPlugin/SEWorldGenPlugin.csproj

@@ -210,6 +210,7 @@
     <Compile Include="GUI\AdminMenu\SubMenus\StarSystemDesigner\MyOrbitRenderObject.cs" />
     <Compile Include="Patches\CopyDirectoryPatch.cs" />
     <Compile Include="Patches\MainMenuPatch.cs" />
+    <Compile Include="Patches\MultiplayerGhostAsteroidPatch.cs" />
     <Compile Include="Patches\WorldSettingsMenuPatch.cs" />
     <Compile Include="Patches\PatchAsteroidGeneration.cs" />
     <Compile Include="Patches\ScenarioCustomizationPatch.cs" />

SEWorldGenPlugin/Startup.cs

@@ -115,6 +115,8 @@ private void Patch()
             worldSettingsPatch.ApplyPatch(harmony);
             var scenarioCustomizationPatch = new ScenarioCustomizationPatch();
             scenarioCustomizationPatch.ApplyPatch(harmony);
+            var ghostAsteroidServerPatch = new MultiplayerGhostAsteroidPatch();
+            ghostAsteroidServerPatch.ApplyPatch(harmony);
         }
 
         /// <summary>