SerializableDictionary

SerializableDictionary(SerializableCollections) is fast, native serializable collections for Unity, includes SerializableDictionary, SerializableLookup, SerializableTuple.

What is this?

If using C# deserialization in Unity, it is slow than native serialization process such as ScriptableObject but Unity's native serialization does not support dictionary and llookup(multi dictionary). SerializableDictionary provides native dictionary serialize and deserialize, it is extreme fast.

How to use

Download Zip or clone GithHub and put under Assetss/SerializableCollections in your project. You have to inheritant SerializableDictionary<TKey, TValue> for serialization, for example TKey:Int, TValue:string is

[Serializable]
public class IntStringSerializableDictionary : SerializableDictionary<int, string>
{

}

and shows inspector

#if UNITY_EDITOR

[UnityEditor.CustomPropertyDrawer(typeof(IntStringSerializableDictionary))]
[UnityEditor.CustomPropertyDrawer(typeof(IntDoubleSerializableDictionary))]
[UnityEditor.CustomPropertyDrawer(typeof(IntIntStringSerializableDictionary))]
public class ExtendedSerializableDictionaryPropertyDrawer : SerializableDictionaryPropertyDrawer
{

}

#endif

currenly only supports viewer, edit in inspector plans future releases.

Multiple Key Dictionary

You have to use SerializableTuple.

[Serializable]
public class IntIntTuple : SerializableTuple<int, int>
{
    public IntIntTuple()
    {

    }

    public IntIntTuple(int item1, int item2)
        : base(item1, item2)
    {

    }
}

[Serializable]
public class IntIntStringSerializableDictionary : SerializableDictionary<IntIntTuple, string>
{

}

and Tuple is key for SerializableDictionary.

SerializableLookup

ILookup is MultiDictionary(like Dictionary[Key, Value[]). You can use SerializableLookup like lookup builder.

[Serializable]
public class IntIntSerializableLookup : SerializableLookup<int, int>
{
}

#if UNITY_EDITOR

[UnityEditor.CustomPropertyDrawer(typeof(IntIntSerializableLookup))]
public class ExtendedSerializableLookupPropertyDrawer : SerializableLookupPropertyDrawer
{

}

#endif

TrimExcess

TrimExcess of SerializableDictionary, SerializableLookup cut the buffer and reduce memory usage.

License

under the MIT Licesne. Dictionary's original code is from dotnet/corefx, check the original license.