SerializationUtility

- Split local editor data into separate SO
- Serializable dicts, sorted lists and sorted sets
- Only delete and save loaded partitions

Runtime/SerializationUtility.cs

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+using System;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace VertexColor.ScenePartition
+{
+    [Serializable]
+    public class SerializableDictionary<TKey, TValue> : Dictionary<TKey, TValue>, ISerializationCallbackReceiver
+    {
+        [SerializeField]
+        private List<TKey> keys = new List<TKey>();
+        [SerializeField]
+        private List<TValue> values = new List<TValue>();
+
+        public void OnBeforeSerialize()
+        {
+            keys.Clear();
+            values.Clear();
+
+            foreach (KeyValuePair<TKey, TValue> pair in this)
+            {
+                keys.Add(pair.Key);
+                values.Add(pair.Value);
+            }
+        }
+
+        public void OnAfterDeserialize()
+        {
+            Clear();
+
+            if (keys.Count != values.Count)
+            {
+                throw new Exception("Error: Key and value count does not match in the dictionary.");
+            }
+
+            for (int i = 0; i < keys.Count; i++)
+            {
+                Add(keys[i], values[i]);
+            }
+        }
+    }
+
+    [Serializable]
+    public class SerializableSortedList<TKey, TValue> : SortedList<TKey, TValue>, ISerializationCallbackReceiver
+    {
+        [SerializeField]
+        private List<TKey> keys = new List<TKey>();
+        [SerializeField]
+        private List<TValue> values = new List<TValue>();
+
+        public void OnBeforeSerialize()
+        {
+            keys.Clear();
+            values.Clear();
+
+            foreach (KeyValuePair<TKey, TValue> pair in this)
+            {
+                keys.Add(pair.Key);
+                values.Add(pair.Value);
+            }
+        }
+
+        public void OnAfterDeserialize()
+        {
+            Clear();
+
+            if (keys.Count != values.Count)
+            {
+                throw new Exception("Error: Key and value count does not match in the dictionary.");
+            }
+
+            for (int i = 0; i < keys.Count; i++)
+            {
+                Add(keys[i], values[i]);
+            }
+        }
+    }
+
+    [Serializable]
+    public class SerializableSortedSet<T> : SortedSet<T>, ISerializationCallbackReceiver
+    {
+        [SerializeField]
+        private List<T> elements = new List<T>();
+
+        public void OnBeforeSerialize()
+        {
+            elements.Clear();
+            elements.AddRange(this);
+        }
+
+        public void OnAfterDeserialize()
+        {
+            Clear();
+
+            for (int i = 0; i < elements.Count; i++)
+            {
+                Add(elements[i]);
+            }
+        }
+    }
+}

Runtime/SerializationUtility.cs.meta

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+guid: d20cd39f6cd10914188acde7ee871339
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
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