StreetLight/Assets/StreetLight/Serialization/Vector3Converter.cs

using Newtonsoft.Json;
using System;
using UnityEngine;

namespace Assets.StreetLight.Serialization
{
    public class Vector3Converter : JsonConverter
    {
        public override bool CanConvert(Type objectType)
        {
            return objectType == typeof(Vector3);
        }

        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
        {
            return new Vector3();
        }

        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
        {
            var vector = (Vector3)value;
            writer.WriteValue($"({vector.x}|{vector.y}|{vector.z})");
        }
    }
}