OneDropCore
All in one optimization, players view plugins, inventory checkpoint plugins.
Inventory Checkpoints
Player inventories are automatically saved every 30 minutes by default.
Each checkpoint can save:
- Main inventory
- Hotbar
- Armor
- Offhand
- XP level
- XP progress
- Health
- Food level
- Saturation
- Game mode
- World and location
- Timestamp
Each player keeps up to 10 checkpoints. When a new checkpoint is created after the limit, the oldest one is removed.
Perfect for recovering items after accidents, deaths, bugs, or mistakes.
Inventory Rollback
Admins can restore a player’s previous inventory using a simple command:
/rollinv checkpoint <player> <1-10>
Example:
/rollinv checkpoint Kelvin 1
1 means the newest checkpoint.
10 means the oldest saved checkpoint.
Before restoring, OneDropCore can create a backup of the player’s current inventory for safety.
Web Inventory Viewer
OneDropCore includes a lightweight browser-based inventory viewer.
Default address:
http://server-ip:8906/?token=YOUR_TOKEN
The web viewer shows:
- Online players
- Username
- UUID
- Health
- Food
- XP level
- World
- Location
- Armor slots
- Offhand slot
- Hotbar
- Full inventory grid
- Item amount
- Durability indicator
- Item details
The viewer is protected with a token system so only authorized admins can view player inventories.
AutoTools
Players can toggle AutoTools with:
/autotools
When enabled, OneDropCore automatically selects the best tool from the player’s hotbar when mining blocks.
It can consider:
- Correct tool type
- Tool material tier
- Efficiency enchantment
- Fortune preference
- Silk Touch preference
- Durability protection
This makes mining smoother without requiring players to manually switch tools all the time.
AutoMiner
Players can toggle AutoMiner with:
/autominer
AutoMiner can safely mine connected blocks such as ore veins or logs, depending on configuration.
Safety limits include:
- Max blocks per activation
- Blocks per tick
- Cooldowns
- Blacklisted blocks
- Tool durability checks
- Inventory full checks
- TPS/memory safety checks
- Protected block checks
AutoMiner is designed to be useful without destroying server performance.
Commands
| Command | Description |
|---|---|
/odc | Main plugin command |
/odc status | View plugin/server status |
/odc reload | Reload plugin config |
/odc optimize now | Run optimization manually |
/odc optimize status | View optimization status |
/odc web status | View web server status |
/odc web token | Show web access token |
/rollinv save <player> | Save checkpoint for a player |
/rollinv saveall | Save checkpoints for all online players |
/rollinv list <player> | List saved checkpoints |
/rollinv checkpoint <player> <1-10> | Restore a checkpoint |
/rollinv restorelatest <player> | Restore newest checkpoint |
/autotools | Toggle AutoTools |
/autotools status | View AutoTools status |
/autominer | Toggle AutoMiner |
/autominer status | View AutoMiner status |
/autominer mode vein | Use vein mining mode |
/autominer mode tunnel | Use tunnel mode if enabled |
Permissions
| Permission | Description |
|---|---|
onedropcore.admin | Full admin access |
onedropcore.optimize | Use optimization commands |
onedropcore.rollback | Restore inventory checkpoints |
onedropcore.checkpoint.save | Save checkpoints |
onedropcore.checkpoint.list | List checkpoints |
onedropcore.autotools | Use AutoTools |
onedropcore.autominer | Use AutoMiner |
onedropcore.autominer.tunnel | Use tunnel mode |
onedropcore.web | Access web-related commands |
Web Inventory Icons
The web inventory viewer supports item icons.
Place PNG files inside:
plugins/OneDropCore/web/assets/items/
Example:
diamond_sword.png iron_pickaxe.png dirt.png golden_apple.png
If an icon is missing, the web viewer will show a clean fallback item box instead.
Safety Notes
OneDropCore is designed to be safe for real survival servers.
It avoids:
- Deleting important mobs by default
- Breaking protected blocks
- Running huge laggy loops
- Accessing Bukkit API from unsafe web threads
- Fake TPS boosting
- Fake network optimization
- Unsafe AutoMiner behavior
The plugin focuses on realistic server-side improvement, not fake performance numbers.
Important Limitation
A server-side Paper plugin cannot directly detect raw keyboard keys like J from a normal vanilla Minecraft client.
That means AutoMiner is toggled with:
/autominer
If you want a J key toggle, you need a separate client-side mod, macro, or launcher keybind that runs /autominer.
Requirements
- Paper server
- Java 21+
- Minecraft 1.20.6+ / 1.21.x recommended
Installation
- Download the plugin jar.
- Place it into your server’s
pluginsfolder. - Restart the server.
- Edit the config if needed.
- Use:
/odc status /odc web token
- Open the inventory viewer:
http://server-ip:8906/?token=YOUR_TOKEN
Perfect For
- Survival servers
- SMP servers
- Private friend servers
- Small-to-medium Paper servers
- Servers that need inventory recovery
- Servers that want admin web inventory viewing
- Servers that want safer automation tools
Summary
OneDropCore gives server owners a powerful set of tools in one plugin:
- Optimize server load
- Save player inventories
- Restore lost inventories
- View inventories from a browser
- Auto-switch tools
- Auto-mine safely
- Protect the server from overload
One plugin. Many useful systems. Built for practical Minecraft server management.
