Citadel is a block protection mod that provides a level of protection relative to the material used to create the protection. There are two linked concepts that Citadel uses to provide protection - reinforcement and security level.
Citadel Natural Reinforcements
Have a hardcore sever where you want everything to be tough? Well Citadel is able to naturally reinforce certain blocks. This allows you you to make mining any certain kind of block you want take a certain amount of breaks to break the block. Example: you have stone and a player comes across it. Citadel says that it takes 4 breaks to really break stone. The player must break the same stone block 4 times before it disappears and drops a cobble stone.
A reinforcement provides protection to a block from being broken. Each type of reinforcement material provides a different number of protections, with a protection being used up during each block break event. The strengths of stone, iron, and diamond reinforcement are 25, 250, and 1800 respectively. For example, if you protect a glass block with an iron ingot, you will have to break the glass block 250 times before it is actually broken.
A reinforced block which is considered securable (configurable but includes anything openable like a door or fence gate, and any containers like furnaces and chests) can also have its allowed access limited to the individual which placed the block or a group to which they belong.
Players can create groups and add members to them. Groups have the following hierarchy:
Owner: Can delete, transfer, add and remove mods, allow and disallow members, modify reinforcements, and set password.
Moderator: Can allow and disallow members, modify/bypass, and add new blocks to group. Cannot delete or transfer group, and cannot add or remove mods.
Member: Can only access and open things like doors, chests, etc. Cannot modify or bypass reinforcements, and cannot edit group.
Reinforcement: In this mode, a player can reinforce already existing blocks. To start, type /ctreinforcement followed by an optional security level. If no security level is specified, blocks are secured at the private level. Once in this mode, hold a valid reinforcement material in your hand and click on the block to reinforce it.
Single block mode: To provide feature compatibility with LWC, you can enter single block reinforcement mode by typing /ctprivate, /ctgroup, or /ctpublic. These are aliases for /ctreinforcement followed by the corresponding security level, with the exception that once a block is reinforced, reinforcement mode is disabled. Fortification
In this mode, a player can place blocks that are reinforced. This is useful for building reinforced structures, or placing a lot of reinforced securable blocks. To enter this mode, hold a valid reinforcement material in your hand and type /ctfortify followed by an optional security level. If no security level is specified, blocks are secured at the private level.
Information: In this mode, a player can easily see the status of all reinforce blocks by interacting with them. To enter this mode, type /ctinfo.
Bypass: Can be active alongside any other mode. In this mode, the player will bypass all reinforcements that they are able to access, so that blocks can be broken normally. The chance that they will receive the reinforcement resource back is (durability / material strength). To toggle this mode, type /ctbypass.
Normal: To reset placement mode to normal, type /ctoff. This will reset your placement mode, security level, and turn bypass mode off.
Name Usage Shortcut
Create Group /ctcreate <group-name> /ctc
Delete Group /ctdelete <group-name> /ctdel
Group Info /ctgroupinfo <group-name> /ctgi
Transfer Group /cttransfer <group-name> <target-player-name> /ctt
Group Password ("null" disables password/join) /ctpassword <group-name> <password> /ctpw
Add Moderator /ctaddmod <group-name> <player-name> /ctam
Remove Moderator /ctremovemod <group-name> <player-name> /ctrm
Allow Member /ctallow <group-name> <player-name> /cta
Disallow Member /ctdisallow <group-name> <player-name> /ctd
Join Group /ctjoin <group-name> <group-password> /ctj
Leave Group /ctleave <group-name> /ctl
List Your Groups /ctgroups /ctgs
List Moderators of Your Group /ctmoderators <group-name> /ctmods
List Members of Your Group /ctmembers <group-name> /ctm
Bypass Mode /ctbypass /ctb
Fortify Mode /ctfortify [security-level] /ctf
- /ctfortify group <group-name> -
Group Mode /ctgroup <group-name> /ctg
Reinforce Mode /ctreinforce [security-level] /ctr
- /ctreinforce group <group-name> -
Private Mode /ctprivate /ctpr
Public Mode /ctpublic /ctpu
Info Mode /ctinfo /cti
Toggle Modes Off /ctoff /cto
Possible Reinforcement Materials /ctmaterials /ctmat
Non Reinforceable /ctnonreinforceable /ctn
Reinforcements that are securable /ctsecurable /cts
Plugin Version /ctversion /ctv
Help /help Citadel
<> = mandatory  = optional
Owner: Can: delete group, transfer group, add & remove mods, allow & disallow members, access reinforcements, modify reinforcements, set password.
Moderator: Can: allow & disallow members, access reinforcements, modify reinforcements.
Member: Can: access reinforcements (such as doors, chests)
A Mysql database is required to use this plugin. If needed, the SQL create table statements are here.
Prison Pearl: Prison Pearl is a plugin that allows players to imprison other players and control them through the use of ender pearls that become Prison Pearls. Combined with Citadel it allows imprisoned players to tell other players the location of their pearl and the possibility of being freed.
CivChat: CivChat is a mod that used citadel groups to have group chats.
JukeAlert: A plugin that creates snitches and helps player's identify grief done by another player.
Expensive Beacons: A plugin that makes beacons expensive to use but limits the effects to citadel groups and a longer range.
Name Layer: A plugin that controls uuids and player names.
Better Associations: is a plugin that associates players. Has built in support for PrisonPearl and provides useful other services for managing player accounts.
Citadel was designed and customized for Civcraft (ip= untamedears.com) as a way to allow players be able to protect their own buildings but also gave the advantage of allowing griefers or other players to still be able to break or steal blocks or chests.
The subreddit for this server is http://www.reddit.com/r/Civcraft/
The Civcraft Description.