PerWorldPlugins v1.2.4

Limit plugins to certain worlds!

PerWorldPlugins v1.2+ was built with compatibility as a top priority. Because of this, we should be fully functional with other plugins. However, in the case that you do stumble upon an incompatibility, we urge you to create an informative ticket!

Plugin Creator: MylesC
Plugin Maintainer: Incomprehendable

What does this plugin do, and how does it work?

PerWorldPlugins will inject the Bukkit core with its own CommandMap as well as changing how the event system works using some neat (and totally not hacky in any way) tricks. This allows you to control which plugins receive the events needed to function, and more importantly, where they receive those events. Using this plugin, you can block plugins in certain worlds. If you're hosting a hybrid server, you're probably overflowing with excitement. Sick of people using mcMMO in your minigames? Block mcMMO in the minigames world! Don't like LWC in your hardcore world? Block that, too!

What's new?

We've updated our plugin to provide maximum compatibility, If you need the technical know-how, we've pushed the changes to our GitHub below. The biggest step in this update is the fact that we have stopped overriding Bukkit's PluginManager, meaning that all plugins should be compatible.


This is an example of the config.

    - world
    - world_nether
  ModReq: []

The configuration of PerWorldPlugins is simple and easy. Referring to the example above, WorldEdit would only work in the worlds 'world' and 'world_nether'. However, ModReq will work in any world.

REMEMBER: If a plugin has no world list, it will work in every world.

exempt-login-events is a self-explanatory feature. This controls whether or not PerWorldPlugins will allow login events to work in every world, no matter the limits. This is highly recommended to be true. It will cause some memory leaks. For example, most minigames plugins will save a player's inventory, so when they log out and log in, their inventory will be returned. If they return to a world that blocks the minigames plugin and this boolean is set to false, their inventory will be lost. Forever.

blocked-msg is also self-explanatory. This is just the string that is sent to players when they try a command from a plugin that is blocked in their current world. And no, there was no way to explain that easier.

You can also use these variables in the string:

  • %player% - The name of the player receiving the message
  • %world% - The name of the world that the player is currently in
  • %plugin% - The name of the plugin that is blocked in the world.

Developers (You shouldn't need this v1.2.0+)

API: Currently we don't support one. If you want one, suggest the features you want!

If your plugin is incompatible, it is mainly because the plugin might extend to SimplePluginManager. PerWorldPlugins will not extend to that class due to its protection; how can you expect us to do so without some more l33t hacky code manipulation?

Here's an example on how to fix it:

Before: (incompatible)

SimplePluginManager spm = (SimplePluginManager)Bukkit.getServer().getPluginManager();
Field scmF = spm.getClass().getDeclaredField("commandMap");

After: (compatible!)

PluginManager pm = Bukkit.getServer().getPluginManager();
Field scmF = pm.getClass().getDeclaredField("commandMap");

Done! That's it. Even as a bonus, if someone decides to make another PluginManager, your plugin will already work with it.

Installation and Use

  1. Download PerWorldPlugins.
  2. Place PerWorldPlugins.jar into your plugin folder.
  3. Start up (or restart) your server.
  4. PerWorldPlugins should have created a folder, called "PerWorldPlugins". Go in there, and edit the configuration file. (server\plugins\PerWorldPlugins\config.yml)
  5. Type /pwp reload in-game, and enjoy the plugin!

Video Tutorials/Showcases

For russian

Bugs and Issues

  • PerWorldPlugins may appear in your stacktraces. This does not mean that PWP is the cause of that stacktrace, so we encourage that you are able to comprehend stacktraces. If you are confident that the issue may be our plugin, then please make a ticket!
  • May be bugs todo with aliases of commands, we're looking into it but isn't top priority as we're waiting for Bukkit 1.8 or the next stable platform.


  • Fix up and prevent certain exploits and unfair tactics in places. (like the mcMMO/Minigames example)
  • Cut down on server lag; some plugins like SurvivalGames check player movement, which fires everywhere, costing you RAM and CPU usage.
  • Add more features and plugins into your server.


This plugin utilises Hidendra's plugin metrics system, which means that the following information is collected and sent to

  • A unique identifier
  • The server's version of Java
  • Whether the server is in offline or online mode
  • The plugin's version
  • The server's version
  • The OS version/name and architecture
  • The core count for the CPU
  • The number of players online
  • The Metrics version

Opting out of this service can be done by editing plugins/Plugin Metrics/config.yml and changing opt-out to true. Produced by Metrics


/pwp version - Displays the version of the plugin.

/pwp reload - Reloads the config.


pwp.admin - Gives access to reload and view the plugin's version.

Upcoming Features

  • Reversible configuration! Instead of whitelisting worlds, you can choose to blacklist them.
  • /pwp list E/D - list all of the plugins that are enabled/disabled in your current world.
  • /pwp add <plugin> <world> - configure the world whitelist/blacklist from in-game! Reloads automagically.
  • /pwp set <exemptLogin/blockedMsg/listMode - set configuration values from in-game! Reloads automagically.

Other Stuff

Source Code

YourKit supports this project with its full-featured Java Profiler. YourKit, LLC is the creator of YourKit Java Profiler and YourKit .NET Profiler, innovative and intelligent tools for profiling Java and .NET applications. We use it on this project to allow us optimise it for best experience. Check it out

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  • Avatar of YiveMe YiveMe May 26, 2014 at 13:59 UTC - 0 likes

    @MylesC: Go

    Yes exempt-login-events is set to true. I'll test with it disabled for a bit and see if it's fixed since this is the only thing I've added and all that stuff I listed just broke afterwards.

    PS: Thanks for this plugin, helps my server out a lot.

    EDIT: Didn't fix the no spawning and such.

    Last edited May 26, 2014 by YiveMe

    Large Minecraft API Site:

  • Avatar of MylesC MylesC May 26, 2014 at 11:17 UTC - 0 likes

    @YiveMe: Go

    Have you got exempt-login-events to true? This may cause it otherwise we're not causing it and it's your perms plugin.

    @ryannathant: Go

    That's the config I use on my testing server.

    Last edited May 26, 2014 by MylesC
  • Avatar of YiveMe YiveMe May 26, 2014 at 00:57 UTC - 0 likes

    I'm not 100% sure, but I think this plugin has caused the following things to 100% break on my server.

    Essentials's delay on commands/kits Creative flying no longer works nor does a command like /fly work either Mobs are not spawning at all

    (The flying bug only happens to groups with * permissions.)

  • Avatar of ryannathant ryannathant May 25, 2014 at 14:46 UTC - 0 likes

    My plugins arent even disabling, can i please have a picture of your config?

  • Avatar of ItIsMeMyself ItIsMeMyself May 25, 2014 at 04:50 UTC - 0 likes

    @Dankrushen: Go

    You can only disable some aspects of Factions, so that doesn't solve my problem.

    Last edited May 25, 2014 by ItIsMeMyself

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  • Avatar of MylesC MylesC May 24, 2014 at 13:37 UTC - 0 likes

    @Dankrushen: Go

    Post your config to pastebin?

  • Avatar of Dankrushen Dankrushen May 24, 2014 at 02:27 UTC - 0 likes

    Oh and can you help? For some odd reason, PerWorldPlugins just removed like, all of my commands. I've disabled it so I can use my server, but I'd like my commands and pwp.

  • Avatar of Dankrushen Dankrushen May 24, 2014 at 02:24 UTC - 0 likes

    @ItIsMeMyself: Go

    Hey, I think this MAY help. Using MCore, there is a multiverse and universe thing, in which you can completely disable or enable factions for any amount of worlds. It should be on the MCore help page.

  • Avatar of ItIsMeMyself ItIsMeMyself May 23, 2014 at 22:02 UTC - 0 likes

    @MylesC: Go

    Factions prefixes are showing up where I don't want them. I only want them to show up if a player is chatting from the Factions world, but they show up even if the player is in a different world. That started happening after updating to the latest version of PWP, without making any changes in the config file.

  • Avatar of megabigroad megabigroad May 23, 2014 at 19:02 UTC - 0 likes

    @MylesC: Go

    Thats exactly what I did, did you test it out yourself yet?


Date created
Jun 12, 2013
Last update
Aug 26, 2014
Development stage
  • enUS
Public Domain
Curse link
Recent files