CityWorld ReForged

Landmark announcements, a copper Statue of Liberty, and a proper Fallout cog door on the vault.

Requires Minecraft 1.21.11 and NeoForge 21.11.42. Drop cityworld-5.0.2.jar into your mods/ folder and pick CityWorld (or one of its 13 styles) as the world type.

Worldgen changes only affect newly generated chunks — existing chunks never regenerate, so start a fresh world (or explore into new land) to see them.

Changed (from a full review of the announce feature before release)

• Announcements are per-world and curated. Chat goes to the players in the world the landmark generated in (was: the whole server, with coordinates meaningless in other dimensions). And only the genuine rares announce by default — vaults, zoos, biodomes, hospitals, airships, saucers and flagged schematics; a new world.announcedLandmarks datapack list lets a server widen or narrow the set (castle, oil platform, radio tower, mine entrance, campground, fish pond and more are available keys). Previously every reportLocation call site would have hit chat: fish ponds, shacks, campgrounds, and every hospital department separately.
• Vault road tunnels no longer announce. Each road chunk through a vault was announcing its own hash as a different "Vault N" — several contradictory lines for one vault, none matching the number in the lobby. The entrance chunk's announcement is the only one now.
• /cityfind understands titles. It now matches and displays the .yml Title, so the name a player reads in chat ("The Statue of Liberty") is findable — previously only the raw file name ("liberty") matched, and results printed the file name.
• Sidecar .yml values may be quoted anywhere. Quoting was only honoured on Title, so ordinary YAML habits like Decayable: "true" silently parsed as false. Quoting (and inline # comments) now work on every key.
• .nbt drop-ins no longer stamp recorded air. A structure-block export records explicit air for its whole bounding box; placing one carved an air cuboid into the surrounding terrain, unlike every other format. Recorded air is now stripped unless the sidecar sets KeepAir: true, matching .schematic/.schem/.litematic.
• Customize screen fixes. Cycling the Style no longer silently resets the groups the screen has no widgets for (city radius, naming lists, mob bags) back to defaults — a datapack's custom values survive the cycle. The floors picker now always shows exactly the value that will save (an out-of-range datapack value used to display snapped but save raw), and its button no longer reads "…floors: 24 floors".

Added

• Landmark announcements. A new world.broadcastSpecialPlaces setting (off by default) announces landmarks in chat as they generate — "Castle generated near 1520, -340" — to everyone on the server. Upstream had this and the port had never implemented it. The same events are always written to the debug log either way, so turning it off loses nothing but the chat.
• Schematics can announce themselves. The .yml sidecar's BroadcastLocation key was being parsed but never acted on; it now works, and fires once per building rather than once per chunk of its footprint. It needs the world's broadcastSpecialPlaces on as well.
• Title: in schematic .yml. Announcements previously could only use a schematic's filename, so winchester.schematic announced as "winchester". A title lets it read "The Winchester Tavern". Defaults to the filename, so a catalog already named nicely needs no change.
• Seven bundled landmarks now announce themselves, with proper names: the Statue of Liberty, Midwich, the Spiritwind Monument, the Dragon Statue, the Old Water Tower, the Hedge Maze and the Great Pagoda. Previously exactly one schematic was flagged to announce and it had no title, so it would have said "liberty". Only distinctive landmarks were picked — the common flavour buildings stay quiet.
• The Statue of Liberty is copper now. The build predates copper, so its skin was 13,563 light blue wool blocks. Converted to a vanilla .nbt structure with the wool remapped to weathered copper; every other block carries over unchanged.
• Bundled schematics may now ship in any supported format. The bundled index only accepted legacy .schematic, even though drop-in schematics could be .schem, .litematic or .nbt — which meant no bundled build could use a block newer than 1.12.
• A Max building floors picker in the single-player Customize screen (World section). The setting existed and worked from a datapack, but there was no UI control for it. Offers 8–60 floors; a hand-edited value in between displays as the nearest and is only overwritten if you turn the dial.

Changed

• The vault lobby got its Fallout glow-up. The blast door is now a proper cog: a 10-block toothed steel gear — gray plate body, copper cross-spokes and hub, iron rim, eight gear teeth — with a hazard-striped doorway "rolled open" through the bottom, striped threshold, chain-and-grate winch machinery overhead, and VAULT-number wall signs flanking the opening. The old door was also centred half a block off the corridor (odd-width design against a 2-wide corridor); the gear is even-width and lines up exactly. The lobby itself gains an overseer's control console, a locker row (barrels and an anvil), and copper air vents let into the walls.

Fixed

• The vault's surface hut stood metres above the hillside. Its floor height came from the cached base-terrain height plus a fudge, which overshoots on slopes — leaving a concrete stalk with a door in the air. It now scans the actual placed terrain at the door column and sits at real grade, with a deeper foundation skirt for the downhill side.
• Lightning rods stood on moss carpet. The rooftop-rod pass ran after overgrowth and stopped its downward scan at the first non-empty block — which, on a reclaimed roof, was the moss carpet or leaf litter lying on it, so the rod sat a notch above the roof looking like it floated. The pass now runs before overgrowth (the rod is part of the building, and the greenery creeps around it), and its scan requires a solid, load-bearing top face, so loose cover can't be mistaken for a roof either way.