# Module for the main vrobot4 program and global info.
module Vrobot4
   # The current program version.
   Version = "4.00".freeze

   def self.debug=(set) @@debug = set end # Sets the current debug level.
   def self.debug (   ) @@debug       end # Gets the current debug level.

   # Logs to the console.
   #
   # @param lv [Symbol]
   #  - If +:DEBUG+, this message will not be printed if the global debug
   #    level is less than 1.
   #  - If +:DEBUGV+, this message will not be printed if the global debug
   #    level is less than 2.
   # @return [Boolean] true if the message was printed, false otherwise
   def self.log lv, *text
      if (lv != :DEBUG  || @@debug >= 1) &&
         (lv != :DEBUGV || @@debug >= 2)
         puts "[" + lv.to_s.ljust(6) + "] " + text.join(" ")
         true
      else
         false
      end
   end

   # Checks if the argument +s+ is a numeric string.
   # @param str [String] the string to check
   def self.is_num? str
      /\A[-+]?[0-9]*\.?[0-9]+\Z/ === str
   end

   private
   @@debug = 0
end

## EOF