AntiDupingMechanics (Paper)
Note: this is made for 1MoreBlock.com - with GPT's help, and I don't recommend running this live until version 2.x
A small Paper plugin that blocks a few storage mechanics commonly abused in dupes, while staying player-friendly:
- Chest boats: players can still ride them, but cannot open their chest inventory.
- Chested animals (donkey/mule/llama etc.): players can still mount them, but cannot open the chest inventory.
- Prevent attaching chests to chested-animals (so new chested animals cannot be created).
- Bundles: players can keep bundles and empty them, but cannot add items into bundles.
Includes:
- Per-world config overrides
- Bypass permission:
antiduping.bypass - Reload:
/antiduping reload - Status:
/antiduping status - Debug logging via config
Commands
/antiduping reload(permission:antiduping.admin)/antiduping status(permission:antiduping.admin)
Permissions
antiduping.admin-- use/antiduping reload|statusantiduping.bypass-- bypass all blocks (recommended for staff)
Per-world configuration
Config lives in plugins/AntiDupingMechanics/config.yml.
worlds.__default__is the baseline for all worlds.- Add
worlds.to override any keys.
Example: allow everything in an admin world:
worlds:
__default__:
chest_boats: { enabled: true, block_open_inventory: true }
donkeys: { enabled: true, block_open_inventory: true, block_attach_chest: true }
bundles: { enabled: true, block_insert_items: true }
admin:
chest_boats: { enabled: false }
donkeys: { enabled: false }
bundles: { enabled: false }
__default__:
chest_boats: { enabled: true, block_open_inventory: true }
donkeys: { enabled: true, block_open_inventory: true, block_attach_chest: true }
bundles: { enabled: true, block_insert_items: true }
admin:
chest_boats: { enabled: false }
donkeys: { enabled: false }
bundles: { enabled: false }
Build
Requires Java 21+.
./gradlew build
Jar will be in build/libs/AntiDupingMechanics-1.1.0.jar.
Notes
Bundle behavior in Minecraft can vary across versions/clients. This plugin blocks the common insert methods:
- click/drag items onto a bundle in inventories
- certain right-click interactions involving item entities (where applicable)
If you find a specific interaction path that still inserts into bundles on your server, note the exact steps and we can tighten the checks.