57 lines
1.2 KiB
JavaScript
57 lines
1.2 KiB
JavaScript
const PIXI = 'undefined' !== typeof window ? require('pixi.js') : undefined;
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import {Resource} from '@avocado/resource';
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const baseTextureCache = {};
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export class Image extends Resource {
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constructor() {
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super();
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this.texture = null;
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}
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static load(uri) {
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return this.loadBaseTexture(uri).then((baseTexture) => {
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const image = new Image();
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image.uri = uri;
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image.texture = new PIXI.Texture(baseTexture);
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return image;
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});
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}
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static loadBaseTexture(uri) {
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if (baseTextureCache[uri]) {
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return Promise.resolve(baseTextureCache[uri]);
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}
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return new Promise((resolve, reject) => {
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const baseTexture = PIXI.BaseTexture.fromImage(uri);
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baseTexture.on('error', () => {
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reject(new Error(`Couldn't load image "${uri}"`));
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});
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baseTexture.on('loaded', () => {
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resolve(baseTextureCache[uri] = baseTexture);
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});
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});
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}
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get height() {
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if (!this.texture) {
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return 0;
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}
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return this.texture.height;
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}
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get size() {
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return [this.width, this.height];
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}
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get width() {
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if (!this.texture) {
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return 0;
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}
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return this.texture.width;
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}
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}
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