All files / src/renderer/lib/sprites detectSprite.worker.ts

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import {
  indexedImageToSprites,
  spriteAlignmentOffsets,
  autoHint2,
  spritesToTiles2,
  clusterSprites,
  spriteDataWithDividerIndexFn,
  SliceDef,
  SpriteTileLocation,
  Position,
  SpriteCluster,
} from "shared/lib/sprites/spriteData";
import { imageToIndexedImage } from "renderer/lib/tiles/readCanvasToTiles";
 
declare const self: Worker;
const workerCtx: Worker = self;
 
export interface DetectSpriteResult {
  tileDefs: SliceDef[];
  spriteTileLocations: SpriteTileLocation[][];
  spriteDefs: SliceDef[];
  alignmentOffsets: Position[];
  spriteClusters: SpriteCluster[];
}
 
workerCtx.onmessage = async (evt) => {
  const src = evt.data as string;
  const imgblob = await fetch(src).then((r) => r.blob());
  const img = await createImageBitmap(imgblob);
  const indexedImage = imageToIndexedImage(img, spriteDataWithDividerIndexFn);
  const spriteDefs = indexedImageToSprites(indexedImage);
  const alignmentOffsets = spriteAlignmentOffsets(spriteDefs);
  const hintTileDefs = autoHint2(indexedImage);
  const { tileDefs, spriteTileLocations } = spritesToTiles2(
    spriteDefs,
    hintTileDefs
  );
  const spriteClusters = clusterSprites(spriteDefs);
 
  workerCtx.postMessage({
    tileDefs,
    spriteTileLocations,
    spriteDefs,
    alignmentOffsets,
    spriteClusters,
  });
};
 
// -----------------------------------------------------------------
 
export default class W extends Worker {
  constructor() {
    super("");
  }
}