c# – Unity:将精灵保存/加载为Json

我正在按照教程我需要保存属于对象的精灵.

我正在创建一个项目数据库,当然希望项目附带正确的图像.这就是我构建Item数据库的方法:

ItemObject

[System.Serializable]
public class ItemObject{

    public int id;
    public string title;
    public int value;
    public string toolTip;
    public bool stackable;
    public string category;
    public string slug;
    public Sprite sprite;


    public ItemObject(int id, string title, int value, string toolTip, bool stackable, string category, string slug)
    {
        this.id = id;
        this.title = title;
        this.value = value;
        this.toolTip = toolTip;
        this.stackable = stackable;
        this.category = category;
        this.slug = slug;
        sprite = Resources.Load<Sprite>("items/" + slug);
    }

的ItemData

[System.Serializable]
public class ItemData {

    public List<ItemObject> itemList;

}

然后我保存/加载ItemData.itemList.这很好用.如你所见,我使用“slug”来加载我的Item的精灵,slug基本上是一个代码友好的名字(例如:golden_hat),然后我的Sprite名字相同.

这也很好用,但Unity保存了Sprite InstanceID,它始终在启动时更改,所以如果我退出Unity并加载我的数据,它将得到错误的Image.

我的Json:

{
    "itemList": [
        {
            "id": 0,
            "title": "Golden Sword",
            "value": 111,
            "toolTip": "This is a golden sword",
            "stackable": false,
            "category": "weapon",
            "slug": "golden_sword",
            "sprite": {
                "instanceID": 13238
            }
        },
        {
            "id": 1,
            "title": "Steel Gloves",
            "value": 222,
            "toolTip": "This is steel gloves",
            "stackable": true,
            "category": "weapon",
            "slug": "steel_gloves",
            "sprite": {
                "instanceID": 13342
            }
        }
    ]
}

所以我猜它不会这样做,有没有其他方法来保存Json中的Sprite?或者每次使用我的“slug”时我是否必须在运行时加载正确的Sprite?

最佳答案 更合适的方法是将纹理保存为byte [],然后你的json包含byte []的名称或url.

    {
        "id": 1,
        "title": "Steel Gloves",
        "value": 222,
        "toolTip": "This is steel gloves",
        "stackable": true,
        "category": "weapon",
        "slug": "steel_gloves",
        "sprite": "steelgloves"
    }

然后当你抓住json时,转换为C#并查找字节数组.一旦你有字节数组,你可以重建精灵:

byte [] bytes = File.ReadAllBytes(path);
Texture2d tex = new Texture2D(4,4);
tex.LoadImage(bytes);
Sprite sp = Sprite.Create(tex, new Rect(0, 0, tex.width, tex.height), new Vector2(0.5f,0.5f));
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