Unity Resources.Load< Sprite>与雪碧 [英] Unity Resources.Load<Sprite> vs as Sprite

问题描述

我尝试使用以下代码(使用作为Sprite 强制转换)更改对象的图像:

I've tried to change the image of my object with this code (used as Sprite cast):

GetComponent<SpriteRenderer>().sprite = Resources.Load("GameObjects/Tiles/Hole") as Sprite;

它不起作用，但是起作用了(使用< Sprite> ):

It did not work, however this worked (used <Sprite>):

GetComponent<SpriteRenderer>().sprite = Resources.Load<Sprite>("GameObjects/Tiles/Hole");

有什么区别?

推荐答案

FunctionR的答案可能是更常见的答案，在这里我可能是错的，但是我相信Load()和Load<T>()之间的区别是Load<T>()检查元数据. 孔"不是Sprite，而是图像文件. Load()查找该图像文件并将其作为文件类型的默认类型(在本例中为Texture2D)加载.

FunctionR's answer is probably the more common answer, and I may just be wrong here, but I believe the difference between Load() and Load<T>() is that Load<T>() checks for meta-data. "Hole" is not a Sprite, it's an image file. Load() finds that image file and loads it as it's default type for the file type, in this case Texture2D.

换句话说，您不能使用as Sprite，因为您不能cast将Texture2D转换为Sprite.您可以使用

In other words, you can't use as Sprite because you cannot cast a Texture2D to a Sprite. You CAN, however, use

    Texture2D = Resources.Load("GameObjects/Tiles/Hole");
    Rect rect = {whatever};
    Vector2 pivot = {whatever};
    Sprite.Create(texture, rect, pivot);

但这需要您知道您要加载的Sprite的大小.

but this requires you to know the size of the Sprite you were trying to load.

总而言之，Load()仅根据您正在加载的文件类型对其进行处理，Load<T>()包括元数据.

In summary, Load() treats it based solely on the file type you're loading, Load<T>() includes metadata.

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