Bukkit

#name of the skill
name: Mining

#description of the skill, will be used later for more in-depth commands.
description: Level up your mining skill to unlock new features, like breaking new blocks and using new tools.

#default XP-gain multiplier
multiplier: 1

#whether or not this skill is enabled at all
enabled: true

#send a message to everyone that a player has leveled up. You can change the message below
broadcastLevelup: true

#blocks used by this skill, either for gaining XP, blocking until a certain level, or blocking items until a certain level.
blocks:
    #the stone block gets associated with this skill. You can find a list with all possible itemnames here: https://hub.spigotmc.org/stash/projects/SPIGOT/repos/bukkit/browse/src/main/java/org/bukkit/Material.java#84
    STONE:
        # get 1 XP for breaking a stone block. You level up when your XP is higher than level^2*10 (so to get level 3, you need 40 xp)
        xp: 1

    COBBLESTONE:
        xp: 0.5
        #you can only start mining cobblestone from Mining level 5. 
        level: 5
    tool_level: 
        #only for breaking blocks
        #you can't use a Diamond pickaxe until you are level 5
        DIAMOND_PICKAXE: 5
    
#Special abilities that randomly happen, usually with a higher chance of happening as the player gets to a higher level. 
special:
    
    #get double drops every now and then
    doubleDrops:
        #whether or not this special is enabled
        enabled: true

        #what the chance is of getting a double drop, in percentages (from 0-100)
        chance: "%level%/3"

        #when a double drop happens, send the player a message
        notifyPlayer: true

    doubleXp:
        enabled: true
        chance: "%level%"
        notifyPlayer: false
    
messages:
    levelup:
    - '&3Congratulations %player%! You leveled up your %name% skill.'
    - '&6Your skill level is now %newlevel%'
    broadcast:
    - '&3%player% leveled up his %name% skill! He is now level %newlevel%'
    needsHigherLevelBlock: "You can't break this block! %name% level required: %level%"
    needsHigherLevelTool: "You can't use this tool yet! %name% level required: %level%"
    itemsDroppedOnGround: "Your inventory was full, causing your item rewards to be dropped on the ground!"
    doubleDrop: "Your block had a double drop! How lucky you are."
    doubleXp: "Your block dropped double XP! How lucky you are."

#rewards for leveling up
rewards:
    #some items you get. Separated by ; for multiple items. 89,4 means 4 glowstone (will use material name in a newer version), 17,2,1 means 2 wood with data-type 1 (so Spruce wood). 
    items: 89,4;17,2,1

    #money you get for leveling up. Nice incentive for working towards a levelup. 
    money: 100