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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 2x 2x 2x 2x 2x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 2x 2x 2x 2x | export const preloadedImages: Record<string, HTMLImageElement> = {};
export function preloadImagesSync(paths: string[]) {
paths.forEach((path) => {
const lowerPath = path.toLowerCase();
if (!preloadedImages[lowerPath]) {
const img = new Image();
img.src = path;
img.onerror = () => {
console.warn(`Image preload failed: ${path}`);
delete preloadedImages[lowerPath];
};
preloadedImages[lowerPath] = img;
}
});
}
export async function preloadImagesWithAwait(paths: string[]) {
const promises = paths.map((path) => {
const lowerPath = path.toLowerCase();
return new Promise<void>((resolve) => {
if (preloadedImages[lowerPath]) {
const img = preloadedImages[lowerPath];
if (img.complete) return resolve();
img.onload = () => resolve();
img.onerror = () => {
console.warn(`Image preload failed: ${path}`);
delete preloadedImages[lowerPath];
resolve();
};
} else {
const img = new Image();
img.src = path;
preloadedImages[lowerPath] = img;
if (img.complete) return resolve();
img.onload = () => resolve();
img.onerror = () => {
console.warn(`Image preload failed: ${path}`);
delete preloadedImages[lowerPath];
resolve();
};
}
});
});
await Promise.all(promises);
}
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