Lucas WintherandClaude Fable 5.2
5062838604
scripts/fixtures/ holds the scripts that produced the 2026-11-11 fixtures, with a README on running them safely into a copy. Run in order they reproduce the content of every fixture they touch. Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com>
41 lines
2.2 KiB
JavaScript
41 lines
2.2 KiB
JavaScript
import { newGame } from '../../js/solutions/spawn.js'
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import { update } from '../../js/solutions/game.js'
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import { opposite } from '../../js/solutions/model.js'
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// Fixture regeneration aid (see scripts/fixtures/README.md). Written during the 2026-11-11 build, kept for reference.
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// Writes into fixtures/ unless FIXTURES_OUT names another directory (with a trailing slash).
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const FIX = process.env.FIXTURES_OUT ?? new URL('../../fixtures/', import.meta.url).pathname
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const SOL = new URL('../../js/solutions/', import.meta.url).href
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const HERE = new URL('./', import.meta.url).pathname
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const dirs = ['Up', 'Down', 'Left', 'Right']
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const play = (seed) => {
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let s = newGame(seed); const actions = []
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while (s.status === 'Playing' && actions.length < 600) {
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const options = dirs.filter((d) => d !== opposite(s.dir)).map((d) => {
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const t = update(update(s, { tag: 'Turn', dir: d }), { tag: 'Tick' })
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const h = t.snake[0]
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const dist = s.apple ? Math.abs(h.x - s.apple.x) + Math.abs(h.y - s.apple.y) : 0
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return { d, alive: t.status !== 'GameOver', dist: dist + (d === s.dir ? -0.1 : 0) }
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})
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const alive = options.filter((o) => o.alive).sort((a, b) => a.dist - b.dist)
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const pick = (alive[0] ?? options[0]).d
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if (pick !== s.dir) { actions.push({ tag: 'Turn', dir: pick }); s = update(s, actions.at(-1)) }
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actions.push({ tag: 'Tick' }); s = update(s, actions.at(-1))
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}
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return { seed, actions, score: s.score, status: s.status }
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}
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const results = []
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for (let seed = 1; seed < 3000; seed++) {
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const r = play(seed)
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if (r.status === 'GameOver' && r.actions.length >= 150 && r.actions.length <= 400 && r.score >= 5) results.push(r)
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}
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console.log(results.length, results.slice(0, 15).map((r) => [r.seed, r.actions.length, r.score]))
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const best = results.sort((a, b) => b.score - a.score)[0]
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console.log('best', best.seed, best.actions.length, best.score)
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if (process.argv[2]) {
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const r = play(Number(process.argv[2]))
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const { writeFileSync } = await import('node:fs')
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writeFileSync(FIX + 'replay-sample.json',
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'{\n "seed": ' + r.seed + ',\n "actions": [\n' + r.actions.map((a) => ' ' + JSON.stringify(a)).join(',\n') + '\n ]\n}\n')
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console.log('wrote', r.seed, r.actions.length, r.score, r.status)
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}
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