# Double Doors Server<\/p>\n
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A Bukkit\/Spigot plugin that opens mirrored double doors together, with low-latency syncing and optional compatibility handling for common server stacks.<\/p>\n
## Features<\/p>\n
– Same-tick partner door sync (no scheduled 1-tick delay)
\n– Strict mirrored pair matching for doors:
\n – same door type
\n – same facing direction
\n – opposite hinge
\n – side-by-side only
\n– Optional recursive opening support for non-door openables (fence gates\/trapdoors)
\n– Per-player toggle: `\/doubledoors toggle`
\n– LuckPerms-friendly permission nodes
\n– GriefPrevention compatibility check for linked-door claim access
\n– Duplicate interaction debounce (helps packet duplication patterns seen with some Bedrock\/Geyser flows)
\n– Translation support via JSON language files (built-in + custom)<\/p>\n
## Compatibility<\/p>\n
– Supports Minecraft Java Edition `26.1`.<\/p>\n
### Geyser \/ Floodgate<\/p>\n
– Plugin declares soft-depends on `Geyser-Spigot` and `floodgate`.
\n– A short duplicate-interaction debounce window is used to avoid rapid duplicate toggles on the same block.<\/p>\n
### LuckPerms<\/p>\n
– Works through standard Bukkit permissions, so LuckPerms applies automatically.
\n– Use `doubledoors.use` to allow\/deny linked opening behavior.<\/p>\n
### GriefPrevention<\/p>\n
– Plugin declares a soft-depend on `GriefPrevention`.
\n– When present, linked-door interaction is checked against claim build permission before toggling the partner door.<\/p>\n
## Proxy Setup (Multi-Server)<\/p>\n
DoubleDoors includes an optional **Velocity proxy plugin** for Geyser\/Floodgate environments with multiple backend servers.<\/p>\n
### Proxy Features<\/p>\n
– Shared SQL heartbeat\/presence tracking across multiple proxies
\n– Automatic detection of Geyser\/Floodgate clients
\n– Support for SQLite and MySQL databases
\n– Connection pooling via HikariCP for efficient SQL resource usage<\/p>\n
### Proxy Installation<\/p>\n
1. Download the proxy JAR from the releases page (`doubledoors-proxy- ### Proxy Configuration<\/p>\n Edit `plugins\/DoubleDoors\/proxy-config.properties`:<\/p>\n “`properties # JDBC URL for the shared database # SQL authentication (leave blank for SQLite) # Unique proxy identifier (for multi-proxy setups) # Heartbeat interval in seconds (minimum 5 seconds) ### Multi-Proxy Example<\/p>\n For a setup with multiple Velocity proxies reporting to a shared MySQL database:<\/p>\n **Proxy 1:** **Proxy 2:** ## Commands<\/p>\n – `\/doubledoors reload` – reload config ## Permissions<\/p>\n – `doubledoors.use` (default: `true`) ## Config<\/p>\n `src\/main\/resources\/config.yml`<\/p>\n – `enableRecursiveOpening` (default: `true`) Language files:<\/p>\n – Built-in fallback file: `src\/main\/resources\/lang\/en_US.json` ## Build<\/p>\n Requirements:<\/p>\n - Java 25 Build command:<\/p>\n ```bash Output jar is generated under `target\/`.<\/p>\n ## License<\/p>\n Licensed under the GNU General Public License v3.0. A Bukkit\/Spigot plugin that opens mirrored double doors together, with low-latency syncing and optional compatibility handling for common server stacks.<\/p>\n","protected":false},"featured_media":58468,"template":"","meta":{"_minecraft_slug":"double-doors-server","_minecraft_project_id":"Fdj5mcgC","_minecraft_author":"SzaBee13","_minecraft_license":"GPL-3.0-only","_minecraft_downloads":357,"_minecraft_follows":0,"_minecraft_client_side":"unsupported","_minecraft_server_side":"required","_minecraft_storage_type":"zip","_minecraft_archive_name":"double-doors-server.zip","_minecraft_size_bytes":279368167,"_minecraft_version_count":24,"_minecraft_updated_at":"2026-05-16T11:23:47.014580Z","_minecraft_date_created":"2026-03-16T22:44:22.136111Z","_minecraft_date_modified":"2026-05-11T14:08:59.927593Z","_minecraft_project_url":"https:\/\/modrinth.com\/mod\/double-doors-server","_minecraft_icon_attachment_id":58468,"_minecraft_imported_at":"2026-06-03T05:03:55+00:00","_minecraft_import_hash":"97a484a40b9b387244cab6a4c47529c0","_minecraft_versions":"","_minecraft_links":"","_minecraft_gallery":"","_minecraft_api_metadata":""},"mod_category":[124,156,125,89,127,128,129,92,985],"mod_loader":[130,131,132,133,134],"minecraft_version":[62,37,40,41,73,74,38,78,79,80,81,82,83,167,163],"class_list":["post-58467","mod","type-mod","status-publish","has-post-thumbnail","hentry","mod_category-bukkit","mod_category-decoration","mod_category-folia","mod_category-game-mechanics","mod_category-paper","mod_category-purpur","mod_category-spigot","mod_category-utility","mod_category-velocity","mod_loader-bukkit","mod_loader-folia","mod_loader-paper","mod_loader-purpur","mod_loader-spigot","minecraft_version-1-21","minecraft_version-1-21-1","minecraft_version-1-21-10","minecraft_version-1-21-11","minecraft_version-1-21-2","minecraft_version-1-21-3","minecraft_version-1-21-4","minecraft_version-1-21-5","minecraft_version-1-21-6","minecraft_version-1-21-7","minecraft_version-1-21-8","minecraft_version-1-21-9","minecraft_version-26-1","minecraft_version-26-1-1","minecraft_version-26-1-2"],"yoast_head":"\n
\n2. Place it in your Velocity `plugins\/` directory
\n3. Restart the proxy
\n4. A `plugins\/DoubleDoors\/proxy-config.properties` file will be generated<\/p>\n
\n# Enable SQL heartbeat reporting (requires Geyser\/Floodgate on this proxy)
\nsql.enabled=false<\/p>\n
\n# SQLite example: jdbc:sqlite:plugins\/DoubleDoors\/doubledoors.db
\n# MySQL example: jdbc:mysql:\/\/localhost:3306\/doubledoors
\nsql.jdbcUrl=jdbc:sqlite:plugins\/DoubleDoors\/doubledoors.db<\/p>\n
\nsql.username=
\nsql.password=<\/p>\n
\nsql.proxyId=velocity-main<\/p>\n
\nsql.heartbeatSeconds=30
\n“`<\/p>\n
\n“`properties
\nsql.enabled=true
\nsql.jdbcUrl=jdbc:mysql:\/\/db.example.com:3306\/doubledoors
\nsql.username=dd_user
\nsql.password=dd_pass
\nsql.proxyId=velocity-us
\nsql.heartbeatSeconds=30
\n“`<\/p>\n
\n“`properties
\nsql.enabled=true
\nsql.jdbcUrl=jdbc:mysql:\/\/db.example.com:3306\/doubledoors
\nsql.username=dd_user
\nsql.password=dd_pass
\nsql.proxyId=velocity-eu
\nsql.heartbeatSeconds=30
\n“`<\/p>\n
\n– `\/doubledoors toggle` – toggle behavior for yourself
\n– `\/doubledoors server-toggle` – toggle behavior server-wide<\/p>\n
\n– `doubledoors.toggle` (default: `true`)
\n– `doubledoors.reload` (default: `op`)
\n– `doubledoors.server-toggle` (default: `op`)<\/p>\n
\n– `recursiveOpeningMaxBlocksDistance` (default: `10`)
\n– `enableDoors` (default: `true`)
\n– `enableFenceGates` (default: `true`)
\n– `enableTrapdoors` (default: `true`)
\n– `enableVillagerLinkedDoors` (default: `true`)
\n– `serverWideEnabled` (default: `true`)
\n– `language` (default: `en_US`)<\/p>\n
\n– Runtime custom language folder: `plugins\/DoubleDoors\/lang\/`
\n– Set active language with `language: ` in `config.yml` (example: `language: de_DE`)
\n- Custom files are JSON objects of key\/value strings and override built-in messages when present.<\/p>\n
\n- Maven<\/p>\n
\nmvn -DskipTests package
\n```<\/p>\n
\nSee `LICENSE`.<\/p>\n","protected":false},"excerpt":{"rendered":"