Lucas WintherandClaude Fable 5.2
edd57f0148
Audit pass: - Frame rule counts frames since the last move, so every step lasts exactly movesEvery(score) frames, also right after a speed-up - clampTime + MAX_GAP_MS: a hidden tab no longer replays the whole gap - Pong Restart keeps held keys - Fact corrections (mulberry32 output coverage, Haskell IO, uniform) - New fixture cases from a mutation analysis Extensions (all three tracks, shared fixtures, course text): - Turn queue (Exercise 10.6), persisted high score (10.7), replay viewer (10.8), play() end-to-end helper (9.5) - Optional State (4.7) and optional Module 7b, stack-safe IO - Module 12, property-based testing with generators, shrinking, invariants and a model-based oracle - Module 13, Conway's Life with a Click event - JS type checking via jsconfig, JSDoc and types.d.ts - Maintainer tools: scripts/mutate.mjs, scripts/typecheck-js.sh, Playwright end-to-end suite (e2e/, scripts/e2e.sh) Docs: docs/contract.md is the canonical contract; specs and build log under docs/superpowers. Verified: JS 728, Scala 689, F# 691 unit tests; stubs and progression M01-M13 and M07b; 176 end-to-end tests on Chromium and WebKit. Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com>
37 lines
1.3 KiB
Scala
37 lines
1.3 KiB
Scala
package snake
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package life
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import LifeModel.*
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/** m13 life app: the same wiring as Snake and Pong, with a third kind of input, the mouse. */
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object LifeApp:
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val GEN_MS: Long = 150
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def lifeKey(key: String): Option[LifeAction] = key match
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case " " => Some(LifeAction.TogglePause)
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case "n" | "N" => Some(LifeAction.Step)
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case "c" | "C" => Some(LifeAction.Clear)
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case "r" | "R" => Some(LifeAction.Randomize)
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case _ => None
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// The pixel is checked before dividing: integer division rounds towards zero, so -1 / 16 would be cell 0.
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def lifeClick(x: Int, y: Int): Option[LifeAction] =
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if x >= 0 && y >= 0 && x / LCELL < LW && y / LCELL < LH then Some(LifeAction.Toggle(Point(x / LCELL, y / LCELL)))
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else None
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lazy val lifeActions: Stream[LifeAction] =
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Stream
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.interval(GEN_MS)
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.map(_ => LifeAction.Frame)
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.merge(Stream.keyDowns.filterMap(lifeKey))
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.merge(Stream.clicks.filterMap(lifeClick(_, _)))
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def lifeStates(seed: Long, actions: Stream[LifeAction]): Stream[LifeState] =
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actions.scan(initialLife(seed))(LifeRules.lifeUpdate).startWith(initialLife(seed))
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lazy val lifeMain: IO[Stream[IO[Unit]]] =
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IO.randomSeed.map(seed =>
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lifeStates(seed, lifeActions).map(state => IO.drawScene(LifeView.lifeView(state))).clampTime(App.MAX_GAP_MS)
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)
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