SimCity Expansion

<div align="center"> # SimCity Expansion **Building expansion-pack manager for (https://github.com/New-Sim-U-Kraft/New-Simukraft-1.21.1)** Bring vanilla, Litematica, and WorldEdit structures into the game, convert and install them as buildable SimuKraft buildings, edit them in a Litematica-style manager, and share them as one-click zip packs. <br> (https://cdn.jsdelivr.net/npm/@intergrav/devins-badges@3/assets/cozy/supported/neoforge_vector.svg)](https://neoforged.net) (https://cdn.jsdelivr.net/npm/@intergrav/devins-badges@3/assets/cozy/available/curseforge_vector.svg)](https://github.com/CancriRecoleta/SimCityExpansion) (https://cdn.jsdelivr.net/npm/@intergrav/devins-badges@3/assets/cozy/available/modrinth_vector.svg)](https://github.com/CancriRecoleta/SimCityExpansion) <!-- Replace the CurseForge / Modrinth links above with the real project pages once published. --> !(https://img.shields.io/badge/Minecraft-1.21.1-44883e?style=flat-square) !(https://img.shields.io/badge/NeoForge-21.1.233%2B-f16436?style=flat-square) !(https://img.shields.io/badge/dependencies-none-3fb950?style=flat-square) !(https://img.shields.io/badge/version-1.0.6-3b82f6?style=flat-square) !(https://img.shields.io/badge/license-All%20Rights%20Reserved-9ca3af?style=flat-square) (https://img.shields.io/badge/source-GitHub-181717?style=flat-square&logo=github&logoColor=white)](https://github.com/CancriRecoleta/SimCityExpansion) </div> --- ## Contents - (#overview) - (#features) - (#requirements-and-installation) - (#opening-the-manager) - (#the-manager) - (#structure-editor) - (#capturing-builds-from-the-world) - (#build-packs) - (#structure-formats) - (#directory-layout) - (#commands) - (#documentation) - (#building-from-source) - (#license) - (#acknowledgements) ## Overview SimCity Expansion is a NeoForge mod for Minecraft 1.21.1 that adds a complete building expansion-pack pipeline to New-Simukraft-1.21.1 (a city-building mod). It lets you import structures from three common formats, convert them into SimuKraft's buildable format, organise and edit them through a Litematica-style manager, and package them as portable zip packs for one-click install and sharing. Integration with SimuKraft is a **pure file-system convention** — the mod writes `.sk` and `.nbt` files under `<game dir>/simukraftbuilding/<category>/` — so there is no compile-time dependency on SimuKraft. The manager is built on Minecraft's own GUI toolkit and needs no extra library, and the command interface runs on a dedicated server as well. ## Features - **Three structure formats** — vanilla `.nbt`, Litematica `.litematic` (multi-region auto-merge), and Sponge/WorldEdit `.schem` (v1/v2/v3), all converted to SimuKraft's vanilla buildable format on install. - **Robust conversion** — older structures are upgraded through the game DataFixer, missing mod blocks are detected against the registry, and block-entity contents (chest inventories, signs, and so on) are preserved (entities are not). - **Litematica-style manager** (open with `\`) — file tree, fixed-width info panel, material list, and layered previews: embedded thumbnail, real-block 3D scene, isometric voxel view, and top-down map. - **Full structure editor** — place / break / pick / replace, brush painting, box selection with fill / frame / hollow / expand, copy / cut / paste, rotate and mirror, symmetry axis, undo / redo, slice planes, and preset camera views; export to `.litematic` or save and install directly. - **Capture from the world** — mark two corners in-game, capture the selection as a blueprint, and optionally include block-entity contents. - **Zip pack ecosystem** — manifest-tracked install / uninstall, one-click export of installed buildings into a shareable pack, an optional pack icon and an `index.json` file manifest, and pass-through of SimuKraft native job/trade definitions (format v2). - **No hard dependencies** — the manager runs on Minecraft's own GUI toolkit and SimuKraft is integrated purely through the file system, so neither is a compile-time dependency. - **Server-friendly** — the `/buildpack` command (operator level 2, with tab-completion) installs loose files and packs and captures regions on dedicated servers, reusing the same conversion pipeline as the GUI. - **Localised** — English, Simplified Chinese, and Traditional Chinese; numbers, dates, and file sizes are formatted per the active game language. ## Requirements and installation | Requirement | Version | | --- | --- | | Minecraft | 1.21.1 | | NeoForge | 21.1.233 or newer |