Account Changer
Account Changer is a powerful Spigot server-side plugin designed to enhance player convenience. It allows users to seamlessly switch their Minecraft accounts in-game via an intuitive GUI, eliminating the need to disconnect or use any client-side modifications. This plugin is particularly useful for managing accounts on offline servers.

Key Features

• In-Game Account Switching: Change accounts directly from the server using a graphical interface.
• No Client Modifications Required: Fully server-side, ensuring ease of use and compatibility.
• Requirements:
  • ProtocolLib
  • Spigot/Paper 1.20.1+ (tested on 1.20.1 and 1.21.3)

Getting Started
Before using the plugin, ensure you’ve read the Installation and Configuration sections for proper setup.

1. Commands

• /ac reload: Reloads the plugin configuration files.
• /ac clear: Clears the command sender's or a specified player's status and alias.
• /ac switch: Opens the GUI for account switching.
• /ac help: Displays help for plugin commands.
• /ac list: list players allowed.
• /ac original: list last alias in game and original name bindings of all players.
• /ac alias: list original names and aliases bindings of all players.
• /ac add <player> <alias>: add a player - alias link
• /ac remove <player>: remove a player - alias link by player's original name, differ from /ac clear where remove from alias.

2. Logic

• Accounts not listed in the configuration require a user to select an alias account during login.
• Once chosen, an alias account persists until the user switches accounts via /ac switch or resets the alias with /ac clear.
• Accounts in the list can also switch accounts without restrictions.
• No time limit exists after choosing an account.

Demo
Below are examples of the plugin in action using settings:

Players:
- ABC
- DEF
MaxPlayers: 20
MaxWait: 10

With listed account ABC, switching to DEF:


With switched account DEF, switching back to ABC:


With unlisted account BCD, switching to DEF:



Note:
The plugin supports Bedrock-Java hybrid servers, making it ideal for servers using Geyser where Bedrock players cannot change their names.

Installation
This plugin requires ProtocolLib. Follow these steps to set it up:

1. Download ProtocolLib and place it in the plugins folder of your server directory.
2. Download AccountChanger-x.x-xxxx.jar from the latest release and place it in the same folder.
3. Restart your server to load the plugins.

Notice:
For servers using authentication plugins (e.g., AuthMe), ensure compatibility by updating the following configurations in config.yml:

UnrestrictedInventories: ["Choose Your Account"]
security:
minPasswordLength: 5

Add these commands to the allowCommands section:

allowCommands:
- /ac
- /accountchanger
- /login
- /log
- /l

Configuration
The configuration file, config.yml, is located in the plugins/AccountChanger directory. Customize the following parameters:

Players:
- ABC
MaxPlayers: 20
MaxWait: 10

Parameters:

1. Players
   • Lists players who bypass the account selection process.
   • Non-listed players must select an account during login.
2. MaxPlayers
   • Sets the maximum number of player accounts available for selection.
   • Adjusts the GUI's inventory slots accordingly.
3. MaxWait
   • Number of ticks wait to show the GUI's inventory for the non-listed players.
   • Change higher to allow network issues.

Permissions

• accountchanger.base: Allows use of /ac (enabled for all players by default).
• accountchanger.reload: Grants permission to reload configurations (/ac reload, default for OP).
• accountchanger.switch: Enables account switching (/ac switch, enabled for all players by default).
• accountchanger.clear: Allows resetting account alias for oneself (/ac clear, enabled for all players).
• accountchanger.clear.all: Allows resetting account aliases for others (/ac clear, default for OP).
• accountchanger.list allow list players allowed (/ac list, default for OP).
• accountchanger.original allow list last alias in game and original name bindings of all players (/ac original, default for OP).
• accountchanger.alias allow list original names and aliases bindings of all players (/ac alias, default for OP).
• accountchanger.add allow to add a player - alias link (/ac add, default for OP).
• accountchanger.remove allow to remove a player - alias link (/ac remove, default for OP).

Acknowledgments
Special thanks to ProtocolLib by dmulloy2 for making this plugin possible.

License
This repository is licensed under the GNU General Public License v3.0.
For more details, see the LICENSE file.