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A custom cart pairs an identity (title, shell colour, label art) with a base game, a list of mods pinned to exact builds with their option values frozen, a load order, and a seal. It ships no code of its own: every mod it names is a separately published mod, which is what keeps a cart auditable before it runs and reproducible after an author's repo disappears. Format and storage: - src/carts/CartManifest.lua parses and validates cart.json, canonicalises it for hashing and reads/writes the .g1rcart bundle. The bundle is a data-only serialised table read through SaveSerializer, so an imported cart can never execute code. Canonical strings are length-prefixed because option keys and values are author-controlled and could otherwise forge a record boundary and collide two different carts onto one hash. - Pins name a public source: a GitHub release with its sha256, a GameBanana file id with its md5, or "local" for a capture that only exists on this install. A local pin is unpublishable by construction, which is what makes "build it here, publish later" possible without inventing a hash. - Label art rides alongside the manifest rather than inside its identity, so re-arting a cart does not tell every player their run is out of date. src/core/Base64.lua decodes it; strict, with no whitespace tolerance. Saves: - Cart playthroughs live in the cart's own slot namespace (saves/cart_<id>/), so a cart's file never sits beside a vanilla one and uninstalling a cart never orphans a save. Every save records the cart build it was made under. The seal: - A sealed cart loads its pinned list, in its order, with its options, and nothing else. A pinned mod with no frozen options gets an empty bucket so unfrozen keys fall to schema defaults, identical for everyone; otherwise two players on one cart quietly run different games. - A sealed cart refuses to load when a pin is missing or installed at another version. Playing a subset of the cart is the exact dishonesty the seal exists to prevent, so the refusal loads nothing at all. - Breaking the seal is permanent, marked per save slot, and downgrades that playthrough to open behaviour. It cannot be cleared through any public API. Launcher: - A game's page carries a Custom Carts control and a picker; choosing a cart turns the page into that cart's page, with its own cartridge, title and save slots. The rail of five games never grows and a cart id never reaches imp.tab or imp.panelVersion. - Loader.planCart runs before boot so a refusal is visible on the page instead of being discovered as an error after launch. - Save as cart captures the enabled mods for a game and names, before the player confirms, every mod that could only be pinned to this install and whether the result can be shared at all. Authoring: - tools/cartkit.py scaffolds, validates, pins and packs a cart, and installs a release workflow. Its writer is byte-identical to the engine's serialiser.
26 lines
1.7 KiB
Markdown
26 lines
1.7 KiB
Markdown
# New Features
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Features intentionally added beyond the original Pokémon Red, Blue, and Yellow games:
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* **Survey zoom** with connected-map rendering and configurable void fill
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* **Perspective tilt mode** for an HD-2D-style overworld
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* **Multiple color modes**, including original, SGB, advanced GBC, monochrome, and classic green
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* **Optional GBC screen effects**, including pixel grids, shadows, glare, and transparency
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* **Performance presets** and configurable FPS limits
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* **Peer-to-peer link play** for trades and battles between Red, Blue, and Yellow
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* **Persistent custom options** stored separately from game saves
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* **Optional widescreen battle layout**
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* **Mobile touch controls** with editable layouts, vibration, and orientation settings
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* **Screen position setting** (center, upper, top) shared across all games, for clamp-on controllers that cover the lower screen
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* **Touch skins** in RetroArch overlay format and Delta `.deltaskin` (including PDF-wrapped bezel art), with per-button press states and Super Game Boy borders
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* **Pokédex diploma and printer image exports**
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* **Shareable mod lists** over save sync, optionally carrying the options set for those mods, which the receiving device is asked about before anything is changed
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* **Custom carts**, a named mod set saved from the mods tab and picked from a game's page, with its own shell colour, label art, save slots and export file
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## Gen 2 Specifics
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* **Pokémon Silver** as an importable, launcher-selectable version alongside Gold
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* **Pokémon Crystal** as an importable, launcher-selectable version alongside Gold and Silver
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* **Mod manager** with Gen 1 mod adapters, per-game targeting, and `modkit gen2check`
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* **Followers** for mods, plus Gen 2-only registries and hooks
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