options:
    Cooldown: 20 seconds
    CooldownMessage: &cYou have to wait %difference between {@EnderCooldown} and {_waited}%!
    BypassPerm: hcfepearl.cooldown

on rightclick holding a ender pearl:
	if player don't have the permission "{@BypassPerm}":
		set {_waited} to difference between {enderpearl.%player%.lastused} and now
		if {_waited} is less than {@Cooldown}:
			message "{@CooldownMessage}"
			cancel the event
		else:
			set {enderpearl.%player%.lastused} to now