OneDropCore

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

Permissions

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

1. Download the plugin jar.
2. Place it into your server’s plugins folder.
3. Restart the server.
4. Edit the config if needed.
5. Use:

/odc status /odc web token

1. 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.