@bscotch/sprite-source/dist/SpriteCache.schemas.js

Art pipeline scripting module for GameMaker sprites.

import { z } from 'zod';
import { jsonSchemaRemoteDir } from './constants.js';
export const cacheVersion = 2;
const imageSummarySchema = z.object({
    width: z.number(),
    height: z.number(),
    checksum: z.string().describe('Pixel-based checksum of the image.'),
    changed: z.number().describe('Unix timestamp of last modification date.'),
});
const spriteSummarySchema = z.looseObject({
    spine: z.literal(false),
    checksum: z
        .string()
        .describe('A checksum combining the pixel-based checksums of all of the frame checksums.'),
    frames: z.record(z.string(), imageSummarySchema),
});
const spineSummarySchema = z.looseObject({
    spine: z.literal(true),
    checksum: z
        .string()
        .describe('A checksum combining the pixel-based checksum of the atlas file with the contets of the atlas and json files.'),
    changed: z
        .number()
        .describe('Unix timestamp of the most recent modified date for all associate files (atlas, json, png).'),
});
const schemaFilename = 'stitch.sprite-cache.schema.json';
const remoteFilename = `${jsonSchemaRemoteDir}/${schemaFilename}`;
export const spritesInfoSchema = z.looseObject({
    $schema: z.string().default(remoteFilename).optional(),
    version: z.number().default(1),
    info: z
        .record(z.string(), z.discriminatedUnion('spine', [spriteSummarySchema, spineSummarySchema]))
        .default({}),
});
export const spritesInfoInfo = {
    schema: spritesInfoSchema,
    name: 'Sprite Cache',
    filename: schemaFilename,
};
export function lastChanged(info) {
    return info.spine
        ? info.changed
        : Math.max(...Object.values(info.frames).map((f) => f.changed), 0);
}
/**
 * Returns `true` if `a` is newer than `b`.
 */
export function isNewer(a, b) {
    return lastChanged(a) > lastChanged(b);
}
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