First vertical slice: the whole shell plus two games playable end to end, so every layer is exercised before the other nine games are built on it. Games - Euchre: bowers, ordering up, dealer discard, going alone, stick the dealer, and full scoring. Rule variants (deck size, points to win, stick the dealer, going alone) are toggles in game setup. - Sequence: two-eyed and one-eyed jacks, free corners, locked sequences, the shared-chip limit, and dead-card exchange. Teams, players per team and the sequence target are toggles. - The board layout in SequenceBoard is generated, not the commercial board — it holds every structural property the rules need, but does not match a physical board. Documented in docs/RULES-sequence.md. Multiplayer - One transport abstraction over newline-delimited JSON, implemented twice: LAN via NSD discovery and TCP, Bluetooth via Classic RFCOMM. A lobby advertises on both at once, so a table can mix them. - Host-authoritative: clients send move intents, the host re-validates every one against the rules, and each client receives a state redacted for its own seat so hidden information never crosses the wire. - Seats start as AI and are handed to people as they join, which is what makes any mix of humans and AI work without a separate code path. Shell - Main menu lists all eleven games; the nine without engines are marked coming soon and are driven entirely by GameCatalog. - Settings: sound, animation speed (one multiplier drives card movement and AI thinking time), and OTA updates from the latest GitHub release. - Layouts measure available space rather than assuming an orientation. The game package is free of Android types, so the rules engines and AI run under plain JUnit; 43 tests cover ranking, following suit, scoring, sequence detection, redaction, wire round-trips and full random and AI playthroughs. Co-Authored-By: Claude Opus 5 <[email protected]> Claude-Session: https://claude.ai/code/session_015qjfMiPUDshdKEUa6vxqzN
108 lines
4.1 KiB
Markdown
108 lines
4.1 KiB
Markdown
# Pro Libertate Games
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A collection of card and board games for Android, playable against the computer
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or against other people over Wi-Fi (LAN) or Bluetooth.
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## What works today
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The app shell is complete and two games are playable end to end:
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| --- | --- |
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| **Playable** | Euchre, Sequence |
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| **Listed, not yet implemented** | Kaiser, President, Golf, Wizard, Crazy 8s, Mastermind, Backgammon, Chess, Checkers |
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Unimplemented games appear in the menu marked *Coming soon*. Adding one means
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writing a `GameRules` implementation, a `GameAi`, and a screen, then flipping
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`available` in `GameCatalog` — the menu, lobby, networking, settings and OTA
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layers are game-agnostic and need no changes.
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## Playing with other people
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Pick a game, choose **Host a game for others to join**, and the device advertises
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itself on every radio it has. Other devices choose **Join a game nearby** and
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pick the host from the list. Seats start out filled by the computer and are
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handed to people as they join, so any mix of humans and AI works — whatever is
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still marked *Computer* when the host starts stays AI.
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- **Wi-Fi (LAN)** — both devices must be on the same network. Discovery uses
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mDNS/NSD; play runs over a TCP socket.
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- **Bluetooth** — devices must already be **paired** in Android's Bluetooth
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settings. Play runs over Classic RFCOMM. Scanning for unpaired devices is not
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implemented.
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Both transports can be live at once, so some players can be on Wi-Fi and others
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on Bluetooth at the same table.
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### How a match is kept in step
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The host is authoritative. Clients send *intents* ("I would like to play this
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card") and the host re-validates every one against the rules before it takes
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effect — a client cannot make an illegal move by sending a malformed message.
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Each client is then sent a state **redacted for its own seat**, so opponents'
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hands and the deck order are never transmitted to devices that should not see
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them.
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## Settings
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- **Sound** on/off.
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- **Animation speed**, 0.5×–2×. One multiplier drives card movement and how long
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the computer appears to think.
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- **Updates** — check on launch, or check on demand. Updates are pulled from the
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latest GitHub Release of this repository, which CI publishes on every push to
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`main`.
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## Screen sizes
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There are no fixed orientations or hard-coded card sizes. Layouts measure the
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space they are given: the menu grid reflows by width, the Sequence board is
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always square and sized to fit whatever is left after the hand, and card widths
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are a fraction of the smaller screen dimension. Rotation is handled inside the
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activity, so a hand is not lost when the device turns.
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## Building
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```sh
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./gradlew assembleDebug # APK at app/build/outputs/apk/debug/
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./gradlew testDebugUnitTest # rules engines and AI
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```
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Requires JDK 17 and the Android SDK (compileSdk 34).
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## CI
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- `.github/workflows/ci.yml` — builds, tests and lints on `dev` and on pull
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requests into `dev` or `main`.
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- `.github/workflows/release.yml` — on push to `main`, builds the APK and
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publishes it as a GitHub Release tagged `v1.0.<run-number>`. The in-app updater
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reads that tag, which is why the APK's `versionCode` is the same run number.
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The debug keystore is committed on purpose: every build is signed with the same
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key, so an OTA update installs over the previous one instead of being rejected
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for a signature mismatch.
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## Rules
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The exact rules implemented, and the options that vary them, are documented per
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game:
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- [Euchre](docs/RULES-euchre.md)
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- [Sequence](docs/RULES-sequence.md) — **note the caveat about the board layout**
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## Layout
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```
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game/ rules engines and AI — pure Kotlin, no Android, unit-tested
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cards/ deck, suits, ranks
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engine/ GameRules / GameAi contracts, seats, table config
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euchre/ Euchre model, rules, AI
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sequence/ Sequence model, board, rules, AI
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net/ wire protocol, LAN and Bluetooth transports, lobby, match driver
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settings/ DataStore-backed preferences
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update/ GitHub Releases OTA updater
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ui/ Compose screens
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```
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Keeping `game/` free of Android types is deliberate: the same code drives the
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AI, the host's authoritative state and the JVM unit tests.
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