【Unity/JsonFx】UnityでJSONの読み書き ref: http://qiita.com/shoridevel/items/6f9b3477af1a17341fdb

BlockDto.cs

public class BlockDto : ObjectBaseDto
{
  public BlockDto ()
  {
  }

  public BlockDto (PositionDto _Position, float _SpawnTime, int _Type) : base (_Position, _SpawnTime)
  {
    Type = _Type;
  }

  public int Type { get; set; }
}

file5.cs

var levelData = (Resources.Load ("Json/LEVEL") as TextAsset).text;
        Debug.Log ("levelData : " + levelData);

_levelDataList = JsonFx.Json.JsonReader.Deserialize<LevelDataList> (levelData);

file6.cs

// 上のレベル全体データからブロックデータのみ抽出
List<Transform> _blockList = levelDataList.BlockData;

// レベルデータ全体DTO
LevelDataList _levelDataList = new LevelDataList ();

// ブロックデータDTO
List<BlockDto> _blockDataList = new List<BlockDto> ();

// ループしながらデータを代入
for (int i=0; i<10; i++)
{
  PositionDto p = new PositionDto (blockTran.position.x, blockTran.position.y);
  float s = Random.Range (1.0f, 3.0f);
  int t = Random.Range (1, 2);

  BlockDto b = new BlockDto (p, s, t);
  _blockDataList.Add (b);
}

_levelDataList.BlockData = _blockDataList;

// レベルをJSON化する
var levelDataListJson = JsonFx.Json.JsonWriter.Serialize (_levelDataList);
Debug.Log ("levelDataListJson : " + levelDataListJson);

// レベルデータ(JSON)を永久保存
File.WriteAllText (Application.dataPath + "/Resources/Json/levelDataTest.json", levelDataListJson);

LevelDataList.cs

using System.Collections.Generic;

public class LevelDataList
{
    public List<BlockDto> BlockData { get; set; }

    public List<PowerUpItemDto> PowerUpItemData { get; set; }
}

ObjectBaseDto.cs

public class ObjectBaseDto
{
    public ObjectBaseDto ()
    {
    }

    public ObjectBaseDto (PositionDto _Position, float _SpawnTime)
    {
        Position = _Position;
        SpawnTime = _SpawnTime;
    }

    public PositionDto Position { get; set; }

    public float SpawnTime { get; set; }
}

PositionDto.cs

public class PositionDto
{
  public PositionDto ()
  {
  }

  public PositionDto (float _X, float _Y)
  {
    X = _X;
    Y = _Y;
  }

  public float X { get; set; }

  public float Y { get; set; }
}

PowerUpItemDto.cs

public class PowerUpItemDto : ObjectBaseDto
{
  public PowerUpItemDto ()
  {
  }

  public PowerUpItemDto (PositionDto _Position, float _SpawnTime, int _Type) : base (_Position, _SpawnTime)
  {
    Type = _Type;
  }

  public int Type { get; set; }
}