first commit

NitroxServer/Serialization/SaveDataUpgrades/Upgrade_V1601.cs

@@ -0,0 +1,29 @@
+using System;
+using System.Collections.Generic;
+using Newtonsoft.Json.Linq;
+using NitroxModel.DataStructures;
+using NitroxServer.Serialization.Upgrade;
+
+namespace NitroxServer.Serialization.SaveDataUpgrades
+{
+    public class Upgrade_V1601 : SaveDataUpgrade
+    {
+        public override Version TargetVersion { get; } = new Version(1, 6, 0, 1);
+
+        protected override void UpgradeWorldData(JObject data)
+        {
+            List<string> modules = new();
+            foreach (JToken moduleEntry in data["InventoryData"]["Modules"])
+            {
+                JToken itemId = moduleEntry["ItemId"];
+                if (modules.Contains(itemId.ToString()))
+                {
+                    itemId = new NitroxId().ToString();
+                    // this line is enough to modify the original data
+                    moduleEntry["ItemId"] = itemId;
+                }
+                modules.Add(itemId.ToString());
+            }
+        }
+    }
+}