Unity Serializable Dictionary

[Unity SerializableDictionary].md

通过声明此类型可实现Dictionary的序列化（可在inspector中显示出KeyValues）

使用方法

• 声明成员 public SerializableDictionary<KeyType, ValueType> serializableDictionary = new();
• 其余使用方法与 Dictionary 类完全一致

SerializableDictionary.cs

using System;
using System.Collections.Generic;
using UnityEngine;

[Serializable]
public class SerializableDictionary<TKey, TValue> : Dictionary<TKey, TValue>, ISerializationCallbackReceiver
{
    [Serializable]
    public struct KeyValue
    {
        public TKey key;
        public TValue value;

        public static implicit operator KeyValue(KeyValuePair<TKey, TValue> pair)
        {
            return new KeyValue()
            {
                key = pair.Key,
                value = pair.Value
            };
        }
    }
        
    public List<KeyValue> keyValues = new();
    public void OnBeforeSerialize()
    {

        if (keyValues.Count > Count)
            AddNewValue();
        
        else if (keyValues.Count < Count)
            UpdateSerializedValues();

    }

    void UpdateSerializedValues()
    {
        keyValues.Clear();
        foreach(var pair in this)
            keyValues.Add(pair);
    }

    void AddNewValue()
    {
        var current = keyValues[^1];
        TryAdd(current.key, current.value);
    }
    public void OnAfterDeserialize()
    {
        Clear();

        for (var i = 0; keyValues != null && i < keyValues.Count; i++)
        {
            var current = keyValues[i];
            TryAdd(current.key, current.value);
        }
    }
}