Blueprints+

Smart, reusable blueprints for builders. Capture builds instantly, preview a ghost with rotation/mirror, and place the result as a unit — single‑player and servers.

Features

• Ghost Preview (client)
  • Toggle a live ghost of your blueprint at the block face under the crosshair.
  • Two preview modes: textured blocks + outlines, or outlines‑only (toggle)
  • Rotate (90° steps around Y), mirror (X/Z), and nudge in XYZ.
• State‑aware placement (client→server)
  • Oriented blocks rotate/mirror with the structure (e.g., FACING, HORIZONTAL_FACING, AXIS, 16‑step rotations, and common directional side properties).
  • Doors flip hinge in mirror for a natural result.
• Grab selection (server command)
  • /bp grab <name>: capture all blocks attached to the looked‑at block (6‑dir), never ground, never below your start Y, no liquids.
  • Hard cap 8000 blocks for safety.
• Local/Server Browser (client)
  • Press I to open the Browser window (dialog).
  • Tabs: Local (default) and Server.
  • Local lists .minecraft/blueprints (dev: run/blueprints). Server lists the server’s blueprints/ via networking.
  • Load instantly (no confirmation). Server blueprints stream to the client for preview (no copying required).
  • Delete from either tab (Local removes file; Server deletes on server and refreshes list).
  • Rename saved blueprints from either tab (Local renames the file; Server renames on server and refreshes list).
  • Keyboard navigation: Up/Down, PageUp/PageDown, Enter (Load), Delete (Remove), R (Refresh), Esc (Close).
• Multiplayer ready
  • Client preview + controls, server placement + commands. Install the mod on both client and server for full functionality.

Controls (default)

• Y — Toggle ghost on/off
• U — Rotate CW (hold Shift for CCW)
• T — Mirror cycle (None → X → Z → None)
• Arrow keys — Nudge X/Z
• PageUp / PageDown — Nudge Y
• O — Toggle preview mode (Blocks+Outlines ↔ Outlines‑only)
• I — Open Browser (Local/Server tabs; Load/Refresh/Delete/Close)
• Enter — Place the ghost (server places blocks; ghost auto‑closes)
• Backspace — Cancel/hide ghost

Commands (server)

All /bp commands are server‑side. Creative‑mode required for safety.

• /bp grab <name> — capture attached blocks from the looked‑at block (strict: attached‑only, no ground, no liquids, never below start Y).
• /bp list — list files on the server.
• /bp remove — look at a structure and open a confirm dialog (Enter=Yes, Esc=No) to delete the attached build. Safety: attached‑only, no ground/liquids, never below start Y, cap 8000. Captured files are saved under server_root/blueprints/<name>.nbt.

File locations

• Client Local tab: .minecraft/blueprints/ (dev: run/blueprints/).
• Server tab: server_root/blueprints/ (auto‑listed/streamed).

Rotation & mirroring details

On placement we transform every block’s BlockState to match the preview transform:

• Rotate (Y axis): HORIZONTAL_FACING/FACING, AXIS/HORIZONTAL_AXIS, ROTATION (16‑step), and directional side properties named north/east/south/west (e.g., wall heights) are rotated.
• Mirror (X or Z): HORIZONTAL_FACING/FACING mirrored; door hinge flips LEFT↔RIGHT; directional sides mirrored appropriately.
• Neighbor‑dependent shapes (stairs SHAPE, wall/pane/fence connections) often update naturally after placement. If you find cases that don’t, open an issue and we’ll add targeted rules or a refresh step.

Installation

Client (required):

• Fabric Loader: 0.16.x
• Fabric API: 0.116.4+1.21.1
• Java: 21
• Place blueprintsplus-<version>.jar in .minecraft/mods/.

Server:

• Same Fabric Loader + Fabric API + Java 21.
• Place the same blueprintsplus-<version>.jar in server_root/mods/ and restart.

Note: Client preview works without the server installed, but placement/commands and the Server tab require the server to have the mod.

Troubleshooting

• “Structures don’t rotate on server”: ensure the server mod jar is the same version (+buildN) as the client jar.
• “Browser Server tab shows nothing”: Install the mod on the server and try /bp list in‑game to confirm server files exist.
• “Preview opaque/heavy”: press O to switch to outlines‑only. Distance culling (~128 blocks) is enabled by default.
• “Walls/stairs corners odd after place”: neighbor‑dependent shapes may need a world tick. Report specific blocks if you want exact shaping rules added.