Unity3d Serialize问题

备忘：

1. ScriptableOjbect中，由于Serialization的原因，不能使用基类引用来存储子类对象，这样都会导致数据丢失

2. 无法直接对Unity的数据如，vector3, quaternion等使用BinaryFormatter进行序列化，会报“SerializationException: Type UnityEngine.Vector3 is not marked as Serializable”。要绕过这个问题的姿势是，自己对Vector3进行包装。下面是其中一种方法

 1 using System;
 2 using System.Runtime.Serialization;
 3 using UnityEngine;
 4 
 5 namespace Assets.Editor
 6 {
 7     sealed class Vector3SerializationSurrogate : ISerializationSurrogate
 8     {
 9 
10 
11 
12         public void GetObjectData(object obj, System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context)
13         {
14             Vector3 v3 = (Vector3)obj;
15             info.AddValue("x", v3.x);
16             info.AddValue("y", v3.y);
17             info.AddValue("z", v3.z);
18         }
19 
20         public object SetObjectData(object obj, System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context, System.Runtime.Serialization.ISurrogateSelector selector)
21         {
22             Vector3 v3 = (Vector3)obj;
23             v3.x = (float)info.GetValue("x", typeof(float));
24             v3.y = (float)info.GetValue("y", typeof(float));
25             v3.z = (float)info.GetValue("z", typeof(float));
26             
27             return (object)v3;
28         }
29     }
30 }

 1 public static void TestFunc()
 2         {
 3             BinaryFormatter bf = new BinaryFormatter();
 4             SurrogateSelector ss = new SurrogateSelector();
 5 
 6             Vector3SerializationSurrogate v3Surrogate = new Vector3SerializationSurrogate();
 7             ss.AddSurrogate(typeof(Vector3), new StreamingContext(StreamingContextStates.All), v3Surrogate);
 8 
 9             bf.SurrogateSelector = ss;
10 
11             MemoryStream stream = new MemoryStream();
12 
13             Vector3 testObj = new Vector3(1, 2, 3);
14             bf.Serialize(stream, testObj);
15             stream.Position = 0;
16             Vector3 resultObj = (Vector3)bf.Deserialize(stream);
17             Debug.Log(resultObj);
18         }