A serialization surrogate to allow the serialization of Vector3's with Unity

Vector3SerializationSurrogate.cs

using UnityEngine;
using System.Runtime.Serialization;

public class Vector3SerializationSurrogate : ISerializationSurrogate {

    // Method called to serialize a Vector3 object
    public void GetObjectData(System.Object obj, SerializationInfo info, StreamingContext context) {

        Vector3 v3 = (Vector3)obj;
        info.AddValue("x", v3.x);
        info.AddValue("y", v3.y);
        info.AddValue("z", v3.z);
    }

    // Method called to deserialize a Vector3 object
    public System.Object SetObjectData(System.Object obj, SerializationInfo info,
                                       StreamingContext context, ISurrogateSelector selector) {

        Vector3 v3 = (Vector3)obj;
        v3.x = (float)info.GetValue("x", typeof(float));
        v3.y = (float)info.GetValue("y", typeof(float));
        v3.z = (float)info.GetValue("z", typeof(float));
        obj = v3;
        return obj;
    }
}