basin / files / src / model / puzzle.worker.ts

puzzle.worker.ts

1	import { generatePuzzle } from './puzzle';
2	import type { Config, Puzzle } from './puzzle';
3
4	export type WorkerRequest = { type: 'generate'; seq: number; config: Config };
5	export type WorkerResponse =
6	\| { type: 'progress'; seq: number; value: number }
7	\| { type: 'done'; seq: number; puzzle: Puzzle };
8
9	self.addEventListener('message', (e: MessageEvent<WorkerRequest>) => {
10	const { type, seq, config } = e.data;
11	if (type !== 'generate') return;
12
13	const puzzle = generatePuzzle(config, (value) => {
14	(self as unknown as Worker).postMessage({ type: 'progress', seq, value } satisfies WorkerResponse);
15	});
16
17	(self as unknown as Worker).postMessage(
18	{ type: 'done', seq, puzzle } satisfies WorkerResponse,
19	[puzzle.hm.data.buffer, puzzle.target.buffer],
20	);
21	});