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CrowdControl/Assets/3rd/Plugins/Easy Save 3/Scripts/ES3SerializableDictionary.cs

84 lines
2.0 KiB
C#

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Linq;
namespace ES3Internal
{
[System.Serializable]
public abstract class ES3SerializableDictionary<TKey,TVal> : Dictionary<TKey,TVal>, ISerializationCallbackReceiver
{
[SerializeField]
private List<TKey> _Keys;
[SerializeField]
private List<TVal> _Values;
protected abstract bool KeysAreEqual(TKey a, TKey b);
protected abstract bool ValuesAreEqual(TVal a, TVal b);
public void OnBeforeSerialize()
{
_Keys = new List<TKey>();
_Values = new List<TVal>();
foreach(KeyValuePair<TKey, TVal> pair in this)
{
try
{
_Keys.Add(pair.Key);
_Values.Add(pair.Value);
}
catch { }
}
}
// load dictionary from lists
public void OnAfterDeserialize()
{
this.Clear();
if(_Keys.Count != _Values.Count)
throw new System.Exception(string.Format("Key count is different to value count after deserialising dictionary."));
for(int i = 0; i < _Keys.Count; i++)
{
if (_Keys[i] != null)
{
try
{
this.Add(_Keys[i], _Values[i]);
}
catch { }
}
}
_Keys = null;
_Values = null;
}
public int RemoveNullValues()
{
var nullKeys = this.Where(pair => pair.Value == null)
.Select(pair => pair.Key)
.ToList();
foreach (var nullKey in nullKeys)
Remove(nullKey);
return nullKeys.Count;
}
// Changes the key of a value without changing it's position in the underlying Lists.
// Mainly used in the Editor where position might otherwise change while the user is editing it.
// Returns true if a change was made.
public bool ChangeKey(TKey oldKey, TKey newKey)
{
if(KeysAreEqual(oldKey, newKey))
return false;
var val = this [oldKey];
Remove(oldKey);
this [newKey] = val;
return true;
}
}
}