MessagePackでセーブとロードするやつ

GameData.cs

//MessagePack をいれとく
//https://github.com/neuecc/MessagePack-CSharp/releases
//GameData.Load(gameObject) GameData.Save(gameObject) で使う

[MessagePack.MessagePackObject]
    public class saveDataFormat
    {
        [MessagePack.Key(0)]
        public string name;
        [MessagePack.Key(1)]
        public Vector3 pos;
        [MessagePack.Key(2)]
        public Quaternion rot;
        [MessagePack.Key(3)]
        public Vector3 scale;
    }

    public static class GameData
    {
        public static void Save(GameObject obj)
        {
            var data = new saveDataFormat();
            data.name = obj.name;
            data.pos = obj.transform.position;
            data.rot = obj.transform.rotation;
            data.scale = obj.transform.localScale;

            var bytes = MessagePack.MessagePackSerializer.Serialize(data);
            File.WriteAllBytes(Application.dataPath + "/SaveData/" + data.name + ".bin", bytes);
        }

        public static void Load(GameObject obj)
        {
            byte[] readData = File.ReadAllBytes(Application.dataPath + "/SaveData/" + obj.name + ".bin");
            var data = MessagePack.MessagePackSerializer.Deserialize<saveDataFormat>(readData);
            obj.transform.position = data.pos;
            obj.transform.rotation = data.rot;
            obj.transform.localScale = data.scale;
        }

    }