SerializableDictionary

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

[System.Serializable] public class KeyDataMap : SerializableDictionary<string, KeyData> {}
[System.Serializable] public class BodyMap : SerializableDictionary<string, ProceduralAnim.BodyPart> {}

[System.Serializable]
public class SerializableDictionary<TKey, TValue> : ISerializationCallbackReceiver {
    [SerializeField]
    private List<TKey> keys = new List<TKey>();

    [SerializeField]
    private List<TValue> values = new List<TValue>();

    public Dictionary<TKey, TValue> dictionary = new Dictionary<TKey, TValue>();

    public void Add(TKey key, TValue value) {
        dictionary.Add(key, value);
    }

    public TValue this [TKey key] {
        set{ dictionary[key] = value; }
        get{ return dictionary[key]; }
    }

    // save the dictionary to lists
    public void OnBeforeSerialize() {
        keys.Clear();
        values.Clear();
        foreach(KeyValuePair<TKey, TValue> pair in dictionary) {
            keys.Add(pair.Key);
            values.Add(pair.Value);
        }
    }

    // load dictionary from lists
    public void OnAfterDeserialize() {
        dictionary.Clear();

        if(keys.Count != values.Count)
            throw new System.Exception(string.Format("there are {0} keys and {1} values after deserialization. Make sure that both key and value types are serializable."));
//      Debug.Log (this.GetType ());
        for (int i = 0; i < Mathf.Min(keys.Count,values.Count); i++)
            dictionary.Add(keys[i],values[i]);
    }
}