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>
33 lines
1.2 KiB
Scala
33 lines
1.2 KiB
Scala
package snake
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package life
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// m13 life model: the whole world is one value, like the snake and the match.
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/**
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* The whole world. `cells` are the live cells, always kept canonical: sorted row-major (by `y`, then by `x`), each cell
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* at most once, all on the board. `seed` is the unsigned 32-bit seed that `Randomize` draws from; `generation` counts
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* the generations since the board was last cleared or randomized.
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*/
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final case class LifeState(cells: List[Point], running: Boolean, seed: Long, generation: Int)
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/** Everything that can happen to the world, as data. `Toggle` carries the cell that was clicked. */
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enum LifeAction:
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case Frame
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case Toggle(cell: Point)
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case TogglePause, Step, Clear, Randomize
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object LifeModel:
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// The board, in cells: LW columns, LH rows, LCELL pixels per cell. Below it the page shows a status strip.
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val LW = 40
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val LH = 30
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/** Pixels per cell. */
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val LCELL = 16
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/** Height of the status strip under the board, in pixels. */
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val STRIP = 24
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/** A fresh world: no live cells, paused, the given seed, generation 0. */
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def initialLife(seed: Long): LifeState = LifeState(Nil, running = false, seed, generation = 0)
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