Bukkit

Your Plugin Works great.

Idea for a mod hope you build it can't find it any were: (Maybe a good name for the plugin [FModWorldBlocker]  "F = Forge")

I'm like other user using MCPC-PLus a Bukkit/Forge Mod server that lets you run forge mods and bukkit plugins on the same server.

Download:
MCPC-PLus server:  http://ci.md-5.net/job/MCPC-Plus/
Forge ModLoad Client for your MC: http://files.minecraftforge.net/
Battle Towers Mod:  http://www.minecraftdl.com/battle-towers-mod/
Floating Ruins Mod: http://bspk.rs/MC/FloatingRuins_ML/latest/index.html

1.) Download MCPC=Plus newest version place it in a folder.
2.) Create a start.bat will with the below line in it with the .jar name same as the one you downloaded
    java -Xmx1024M -Xms1024M -jar mcpc-plus-1.6.2-R0.2-forge845-B61.jar
3.) Download the newest forge mod loader installer file for your minecraft client open and run it with java install the client only.
4.) Start your minecraft MPPC pluse start.bat to create the needed libraries and folder then stop the server.
5.) Start your minecraft client and run the new forge profile to let forge do it's thing in the client
6.) Close the client and server download the mods place then in the client mods folder and the server mods folder
7.) eidit the created server_properties with note pad and change the setting you want for local host just leave a server-port= the same and no server-ip= needed
8.) Restart the server then start your mc client and add a server connect via :25565 or localhost works also.
9.) I know you understand the plugins go in the pluguns folder :)

Here's what the plugin need to do is load without permissions if possible but maybe a plugin reload feature. Then each time you start the server the plugin will place a list of all your worlds in a config.yml and all the forge loaded mods detected names in a modref.yml to get the mods loaded default names to use in the config.yml

Config.yml:
#All mods listed below the world name b: [mod name] are blocked and not allowed in that world
#Open modref.yml to get the correct spelling and names of detected mods at last server restart
#
#Restart your server to refresh the worlds and mods detected. Example: make a portal world you need to reboot then stop the server
#then edit your config/yml to the setting you want then restart the server
  Worlds:
    - World
      b: Battle Towers
    - PlotMeCreative
      b: *.*
    - Survival
      b: FloatingRuins
    - HungerGames
      b: Battle Towers

modref.yml
# This file is a list of detected forge mods loaded you can use in your config.yml
# Note: all mod names must be entered correctly that same way they are displayed in this file in the config.yml file
FloatingRuins
Battle Towers

My wife says I get to technical some times so if you want to take on this venture and need a tester and ideas you can email me at [email protected]

Let me know it's you emailing me the maker of TreasureHunt mod so I don't think it's spam :)