Bukkit

AreaRules trigger manualRules when a player walks into a defined region. This is useful if you want to create certain rules that only apply in specific areas.

To start with, you need one or more manualRules: configured. A manual rule is the same as a normal rule, however it is not applied automatically to a player. A manual rule is only applied when entering/exiting an area or via the API for third party plugins.

In this example, I create a manualRule called sticksOnly that prevents the use of any tool or weapon (using aliases) but allows the use of sticks. Note I use mode: denyPrevious which removes all previously applied rules.

manualRules:
    sticksOnly:
        mode: denyPrevious
        actions: [USE, CRAFT]
        items:
            allow: [280]
            restrict: [woodenEquipment, ironEquipment, stoneEquipment, goldEquipment, diamondEquipment]

Now I create a zone that applies the sticksOnly rule when they walk into the region and then removes the sticksOnly rule when they leave.

areaRules:
    StickZone:
        description: 'use sticks to pummel people'
        world: pickleMasher
        ne: [253, 65, 293]
        sw: [259, 63, 314]
        messages:
            onEntrance: 'You are now entering the Stick only PvP Zone'
            onExit: 'You are now leaving the Stick Only PvP Zone'
        entrance: [sticksOnly]
        exit: [sticksOnly]

Here is a breakdown of options with areaRules: