Player Roles (Fabric)

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11,538 Downloads Last Updated: Aug 4, 2021 Game Version: 1.17.1

Player Roles for Fabric

This is a simple implementation allowing for custom permissions to be assigned to players via Discord-like "roles". Roles and their permissions are defined within a JSON file, which can be easily modified and reloaded at runtime for rapid iteration.

The roles.json file is located in the config directory (<root>/config/roles.json). An example configuration may look like: roles.json

But what's going on here? This JSON file is declaring three roles: admin, spectator and everyone.

everyone is the default role: every player will have this role, and it cannot be removed. The other roles that are specified function as overrides on top of the everyone role.

Overrides

Within each role declaration, we list a set of overrides. Overrides are the generic system that this mod uses to change game behavior based on roles. Currently, the supported override types are commands, name_style, chat_format, mute, command_feedback and permission_level.

It is important to consider how overrides are applied when multiple roles target the same things. Conflicts like this are resolved by always choosing the role with the highest level. So, in the case of the example: although everyone declares every command except help to be disallowed, because admin and spectator have higher levels, they will override this behaviour.

commands

The commands override is used to manipulate the commands that a player is able to use. Each override entry specifies a regular expression pattern to match, and then a strategy for how to respond when the mod encounters that pattern.

For example, the pattern .* matches every possible command, while gamemode (spectator|adventure) would match the gamemode command only with spectator and adventure mode. The strategies that can then be used alongside these patterns are allow and deny: allow will make sure that the player is allowed to use this command, while deny will prevent the player from using this command.

For example: "commands": { "gamemode (spectator|adventure)": "allow" }

The commands override can additionally make use of the hidden rule result, which will allow the command to be used, while hiding it from command suggestions.

chat format

The chat_format override is used to change how player messages appear in the chat. It is declared simply as a string formatter pattern. Every instance of %s is replaced by a formatter argument. The first %s is replaced by the player name, and the second is replaced by the message.

For example: "chat_format": "%s says: %s" ...which would format as Gegy says: hi!

It is worth nothing that color codes can be used here, but they will not apply to the player name. To apply color to a player name, you should use the name_style override.

name style

The name_style override modifies the name color for players with that role. This has lower priority than scoreboard team colors.

Name style is declared like: "name_style": ["red", "bold", "underline"]

permission level

The permission_level override sets the vanilla permission level for assigned players. This is useful for interacting with other mods, as well as with vanilla features that aren't supported by this mod.

Permission level is declared like: "permission_level": 4

mute

The mute override functions very simply by preventing assigned players from typing in chat.

Mute is declared like: "mute": true

command feedback

By default, all operators receive global feedback when another player runs a command. The command_feedback override allows specific roles to receive this same kind of feedback.

Command feedback is declared like: "command_feedback": true

Other configuration

Roles can additionally be applied to command blocks or function executors through the configuration file. For example: json { "commands": { "apply": { "command_block": true, "function": true }, "overrides": { } } }

It may also be useful for a role to inherit the overrides from another role. This can be done with the includes declaration by referencing other roles with a lower level. For example: json { "foo": { "includes": ["bar"], "overrides": { "commands": { ".*": "allow" } } }, "bar": { "overrides": { "name_style": "red" } } }

With this configuration, the foo role will inherit the red name_style.

Applying roles in-game

Once you've made modifications to the roles.json file, you can reload it by using the /role reload.

All role management goes through this role command via various subcommands. For example:

  • role assign Gegy admin: assigns the admin role to Gegy
  • role remove Gegy admin: removes the admin role from Gegy
  • role list Gegy: lists all the roles that have been applied to Gegy
  • role reload: reloads the roles.json configuration file

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