forked from sent/waves
64 lines
1.8 KiB
JavaScript
64 lines
1.8 KiB
JavaScript
/**
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* @file imagemanager.class.js
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* @version 1.1.0
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*/
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import config from '../resources/config.js';
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import resources from '../resources/resources.js';
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import * as THREE from '../lib/three.js/three.module.js';
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export default class ImageManager {
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static _init() {
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ImageManager._images = new Map();
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ImageManager._textures = new Map();
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}
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static asyncLoadImages() {
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return Promise.all(Object.keys(resources.images).map(name => {
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const info = resources.images[name];
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const url = `./images/${info.path}${config.debug.preventCaching ? '?time=' + new Date().getTime() : ''}`;
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return new Promise((resolve, reject) => {
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const image = new Image();
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image.addEventListener('load', () => {
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ImageManager._images.set(name, image);
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resolve();
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});
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image.addEventListener('error', () => {
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reject(new Error(`Error loading image file "${url}"`));
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});
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image.src = url;
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});
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}));
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}
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static getImageNames() {
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return Array.from(ImageManager._images.keys());
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}
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static getImage(name) {
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const image = ImageManager._images.get(name);
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if (image === undefined) {
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throw new Error(`Image "${name}" does not exist`);
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}
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return image;
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}
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static getThreeTexture(name, encoding = THREE.LinearEncoding) {
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if (ImageManager._textures.has(name)) {
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return ImageManager._textures.get(name);
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}
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const image = ImageManager.getImage(name);
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const texture = new THREE.Texture(image);
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texture.encoding = encoding;
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texture.needsUpdate = true;
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ImageManager._textures.set(name, texture);
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return texture;
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}
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}
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ImageManager._init();
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