Doorchestra

Make every entrance move as one.

Doorchestra is a server-side Fabric mod that synchronizes double, triple, and quad doors while keeping their behavior close to vanilla Minecraft. It also links matching trapdoors and fence gates, supports redstone and pressure plates, and lets players temporarily bypass linking by sneaking.

Dedicated server: install Doorchestra only on the server. Connecting players do not need the mod.

Singleplayer: install Doorchestra in the client instance because singleplayer runs through Minecraft's integrated server.

Features

• Double doors: open or close two matching doors together.
• Linked trapdoors and fence gates: matching adjacent pairs move together.
• Triple doors: use two outer doors with either a center door or two vertically aligned trapdoors. The center column temporarily clears while the entrance is open and is restored exactly when it closes.
• Quad doors: four continuous doors open as one wide entrance. The two center doors fold behind the outer doors, preserve their visible handedness, and return to their exact original states on close.
• Redstone support: buttons, levers, pressure plates, and other vanilla signals operate the whole structure. Multiple pressure plates changing in the same game tick are handled as one doorway.
• Sneak to bypass: interact while sneaking to use the targeted block without linking its neighbors.
• Safe openings: temporary passage cells are protected from placement, breaking, pistons, fluids, falling blocks, and overlapping linked structures.
• Crash-safe recovery: triple and quad transformations are recorded before blocks move, with automatic backup and administrator recovery commands.
• Vanilla clients: Doorchestra adds no custom blocks, items, or network packets.

How the larger entrances work

Triple doors

A valid triple entrance forms one continuous three-block-wide, two-block-high face:

• the two outer blocks are compatible ordinary doors;
• the center is either one compatible ordinary door or two vertically aligned trapdoors;
• every panel is aligned to the same facade.

Opening any member opens both outer doors and temporarily removes the center column without drops or breaking particles. Closing the entrance restores the saved center states.

Quad doors

A valid quad entrance contains four closed, complete, co-facing ordinary doors. The outer-left door must use a left hinge and the outer-right door a right hinge; the two inner hinges may use any combination.

When opened, the inner doors relocate behind the outer doors. Their original handedness remains visible, and all original facing and hinge properties are restored on close. If a destination contains a block, Doorchestra never overwrites it and safely falls back to a smaller matching pattern when possible.

Installation

Doorchestra requires:

• Fabric API
• Fabric Language Kotlin

Download the JAR matching your Minecraft version and place it in the mods directory together with both required Fabric dependencies.

Each Minecraft line uses its own JAR. Do not use one version's JAR on another line.

Configuration

The first launch creates:

config/doorchestra.json

The configuration controls double doors, linked trapdoors, linked fence gates, triple doors, quad doors, redstone linking, material matching, facing and hinge rules, and protection of temporary openings.

After editing the file, reload it without restarting:

/doorchestra reload

Administration and recovery

Doorchestra normally restores active structures automatically. Operators can inspect or repair exceptional cases with:

/doorchestra status
/doorchestra repair
/doorchestra recover list
/doorchestra recover inspect <id>
/doorchestra recover repair <id>
/doorchestra recover unlock <id>

Recovery never overwrites an unknown block. Emergency unlock requires an explicit confirmation and removes only the selected protection record without changing world blocks.

Active recovery data is stored in the world at:

data/doorchestra-openings.json

A .bak copy of the last healthy file is retained automatically.

Compatibility

• Minecraft Java Edition 1.21.11, 26.1.x, and 26.2.x
• Fabric
• Dedicated servers and singleplayer
• No multiplayer client installation required
• No custom client resource pack or networking protocol