javascript - 如何使用 Pixijs 获取加载的 Sprite 表资源中定义的图像

Question

使用 Pixijs 我可以加载资源如下:

var assetsToLoader = ["sprite-sheet-1.json", "sprite-sheet-2.json"];
loader = new PIXI.AssetLoader(assetsToLoader);
loader.onComplete = onAssetsLoaded
loader.load();
function onAssetsLoaded () {
   // getAssets here  
}

在 sprite-sheet-1.json

{"frames": {

    "image1.png":
    {
        "frame": {"x":0,"y":0,"w":40,"h":40},
        "rotated": false,
        "trimmed": false,
        "spriteSourceSize": {"x":0,"y":0,"w":40,"h":40},
        "sourceSize": {"w":40,"h":40}
    },
    "image2.png":
    {
        "frame": {"x":40,"y":0,"w":40,"h":40},
        "rotated": false,
        "trimmed": false,
        "spriteSourceSize": {"x":0,"y":0,"w":40,"h":40},
        "sourceSize": {"w":40,"h":40}
    }},
    "meta": {
        "app": "http://www.texturepacker.com",
        "version": "1.0",
        "image": "../img/sprite-sheet-1.png.png",
        "format": "RGBA8888",
        "size": {"w":279,"h":40},
        "scale": "1",
        "smartupdate": "$TexturePacker:SmartUpdate:9e3e5afd01ea8e418afabfbdcd724485$",
        "extraMeta": "this is Extra"
    }
}

如何以编程方式获取 Sprite 表中定义的图像列表？

Answer 1

PIXI 将所有 Sprite 存储在全局对象 PIXI.TextureCache 中。

function onAssetsLoaded () {
   // getAssets here  
   console.log(PIXI.TextureCache);
}

因此，要获得单个纹理，您可以执行类似的操作

var texture1 = PIXI.TextureCache["image1.png"];

不过，您通常不需要这样做，因为添加 Sprite 非常简单

var sprite = PIXI.Sprite.fromFrame("image1.png");