48 lines
1.1 KiB
TypeScript
48 lines
1.1 KiB
TypeScript
import { type SpriteSpec, SPRITE_SPECS } from ".";
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export const FONT = new FontFace("scientifica", "url(/fonts/scientifica.ttf)");
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FONT.load().then((font) => {
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document.fonts.add(font);
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});
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export const IMAGES = new Map<string, HTMLImageElement>();
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export const loadSpritesIntoImageElements = (
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spriteSpecs: Partial<SpriteSpec>[],
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): Promise<void>[] => {
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const spritePromises: Promise<void>[] = [];
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for (const spriteSpec of spriteSpecs) {
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if (spriteSpec.sheet) {
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const img = new Image();
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img.src = spriteSpec.sheet;
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IMAGES.set(spriteSpec.sheet, img);
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spritePromises.push(
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new Promise((resolve) => {
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img.onload = () => resolve();
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}),
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);
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}
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if (spriteSpec.states) {
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spritePromises.push(
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...loadSpritesIntoImageElements(Array.from(spriteSpec.states.values())),
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);
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}
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}
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return spritePromises;
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};
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export const loadAssets = () =>
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Promise.all([
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...loadSpritesIntoImageElements(
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Array.from(SPRITE_SPECS.keys()).map(
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(key) => SPRITE_SPECS.get(key) as SpriteSpec,
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),
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),
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FONT.load(),
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// TODO: Sound
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]);
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