Unity存储游戏数据的多种方法小结

using UnityEngine;
//关于[CreateAssetMenu]下面有介绍
[CreateAssetMenu(fileName = "NewData", menuName = "MyData", order = 51)]
public class MyData : ScriptableObject
{//
    public int level;
    public float health;
    public string playerName;
}

public class DataManager : MonoBehaviour
{
    public MyData data;

    void Start()
    {
        // 将数据存储在ScriptableObject对象中
        data.level = 10;
        data.health = 80.0f;
        data.playerName = "XiaoMing";

        // 从ScriptableObject对象中读取数据并输出到控制台
        Debug.Log("Level: " + data.level);
        Debug.Log("Health: " + data.health);
        Debug.Log("Player Name: " + data.playerName);
    }
}

using UnityEngine;
using UnityEditor;

public class CreateData : MonoBehaviour
{
    [MenuItem("Tools/Create Data")]
    static void CreateMyData()
    {
        // 创建一个新的MyData对象，MyData是上放刚刚创建的MyData类
        MyData data = ScriptableObject.CreateInstance<MyData>();

        // 设置MyData对象的属性
        data.level = 10;
        data.health = 80.0f;
        data.playerName = "Tom";

        // 在Assets文件夹中创建一个名为"MyData.asset"的新文件，并将MyData对象保存到该文件中
        AssetDatabase.CreateAsset(data, "Assets/MyData.asset");
        AssetDatabase.SaveAssets();

        // 在控制台输出创建的MyData对象的信息
        Debug.Log("Created MyData asset: " + AssetDatabase.GetAssetPath(data));
        Debug.Log("Level: " + data.level);
        Debug.Log("Health: " + data.health);
        Debug.Log("Player Name: " + data.playerName);
         // 也可以刷新Asset数据库，这样在编辑器中看到新创建的Asset
        AssetDatabase.Refresh();
    }
}

using UnityEngine;
using System;

// 定义一个包含多个属性的类
[Serializable]
public class PlayerData
{
    public int level;
    public string playerName;
    public float health;
}

public class JsonDemo : MonoBehaviour
{
    void Start()
    {
        // 创建一个PlayerData对象并设置属性
        PlayerData player = new PlayerData();
        player.level = 10;
        player.playerName = "XiaoMing";
        player.health = 100.0f;

        // 将PlayerData对象序列化为JSON格式的字符串
        string json = JsonUtility.ToJson(player);

        // 打印序列化后的JSON字符串
        Debug.Log("JSON: " + json);

        // 将JSON字符串反序列化为PlayerData对象
        PlayerData player2 = JsonUtility.FromJson<PlayerData>(json);

        // 打印反序列化后的对象的属性
        Debug.Log("Level: " + player2.level);
        Debug.Log("Name: " + player2.playerName);
        Debug.Log("Health: " + player2.health);
    }
}

using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System.Xml.Serialization;
using System.IO;

// 定义一个包含多个属性的类
[XmlRoot("PlayerData")]
public class PlayerData
{
    [XmlElement("Level")]
    public int level;

    [XmlElement("PlayerName")]
    public string playerName;

    [XmlElement("Health")]
    public float health;
}

public class XmlDemo : MonoBehaviour
{
    void Start()
    {
        // 创建一个PlayerData对象并设置属性
        PlayerData player = new PlayerData();
        player.level = 10;
        player.playerName = "XiaoMing";
        player.health = 100.0f;

        // 将PlayerData对象序列化为XML格式的字符串
        XmlSerializer serializer = new XmlSerializer(typeof(PlayerData));
        StringWriter writer = new StringWriter();
        serializer.Serialize(writer, player);
        string xml = writer.ToString();

        // 打印序列化后的XML字符串
        Debug.Log("XML: " + xml);

        // 将XML字符串反序列化为PlayerData对象
        StringReader reader = new StringReader(xml);
        PlayerData player2 = serializer.Deserialize(reader) as PlayerData;

        // 打印反序列化后的对象的属性
        Debug.Log("Level: " + player2.level);
        Debug.Log("Name: " + player2.playerName);
        Debug.Log("Health: " + player2.health);
    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Mono.Data.Sqlite;

public class DatabaseManager : MonoBehaviour
{
    private string connectionString;

    // Start is called before the first frame update
    void Start()
    {
        connectionString = "URI=file:" + Application.dataPath + "/PlayerData.db";
        CreateTable();
    }

    // 创建表
    void CreateTable()
    {
        using (var conn = new SqliteConnection(connectionString))
        {
            conn.Open();

            using (var cmd = conn.CreateCommand())
            {
                cmd.CommandText = "CREATE TABLE IF NOT EXISTS Player (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, level INTEGER)";
                cmd.ExecuteNonQuery();
            }
        }
    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Mono.Data.Sqlite;

public class DatabaseManager : MonoBehaviour
{
    private string connectionString;

    // Start is called before the first frame update
    void Start()
    {
        connectionString = "URI=file:" + Application.dataPath + "/PlayerData.db";
        CreateTable();//创建表
        InsertData("Jack", 10);//向"Player"表中插入一条玩家角色信息
        QueryData();//查询所有的角色信息
    }

    // 创建表
    void CreateTable()
    {
        using (var conn = new SqliteConnection(connectionString))
        {
            conn.Open();

            using (var cmd = conn.CreateCommand())
            {
                cmd.CommandText = "CREATE TABLE IF NOT EXISTS Player (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, level INTEGER)";
                cmd.ExecuteNonQuery();
            }
        }
    }

    // 插入数据
    void InsertData(string name, int level)
    {
        using (var conn = new SqliteConnection(connectionString))
        {
            conn.Open();

            using (var cmd = conn.CreateCommand())
            {
                cmd.CommandText = "INSERT INTO Player (name, level) VALUES (@name, @level)";
                cmd.Parameters.AddWithValue("@name", name);
                cmd.Parameters.AddWithValue("@level", level);
                cmd.ExecuteNonQuery();
            }
        }
    }

    // 查询数据
    void QueryData()
    {
        using (var conn = new SqliteConnection(connectionString))
        {
            conn.Open();

            using (var cmd = conn.CreateCommand())
            {
                cmd.CommandText = "SELECT * FROM Player";

                using (var reader = cmd.ExecuteReader())
                {
                    while (reader.Read())
                    {
                        var id = reader.GetInt32(0);
                        var name = reader.GetString(1);
                        var level = reader.GetInt32(2);

                        Debug.LogFormat("id: {0}, name: {1}, level: {2}", id, name, level);
                    }
                }
            }
        }
    }
}