ADDGAUGE expression , expression [ , expression ] [ , expression ] 
   [ , expression ]
    
   Synopsis:
      Adds a 'main' window gauge
    
   Notes:
      Adds a gauge to the 'main' window. This gauge displays two numeric values, 
         such as your character's health points and their maximum health points.
         The first value is expected (but not required) to be less than or equal
         to the second.

      The first expression is a unique gauge number. You can specify any 
         integer, zero or above. If a gauge with this number already exists, it
         is replaced with a new one. It's up to the script to keep track of the
         unique numbers of any gauges it has created. (Gauge numbers are 
         independent of the numbers used with ADDSTATUS, ADDCONSTATUS and so
         on.)
      The second expression is the label drawn above the gauge, for example
         "HP". If it's an empty string, Axbasic will assign its own label.
      The remaining optional expressions specify which colours to use. If 
         they're not specified, default colours are used. The first one is the
         colour of the full portion of the gauge; the second is the colour of 
         the empty portion of the gauge; the third is the colour of the label.
      Colours must be valid Axmud colour tags (standard tags such as "RED" or
         "blue", xterm tags such as "x0" or "x255", or RGB tags such as 
         "#000000" or "#FFFFFF"). Any invalid colour tags are ignored and
         default colours are used instead.

      An ADDGAUGE statement is usually followed by a SETGAUGE statement, which
         sets the numeric values displayed by the gauge. A DELGAUGE statement
         removes the gauge entirely. Gauges are automatically removed when the
         script terminates.
      Often, these statements are used in some kind of loop, which updates the
         gauges periodically. See the code below for an example.

      See also the help for the ADDCONGAUGE, ADDSTATUS and ADDCONSTATUS 
         statements.

   Examples:
      OPTION NEEDTASK
      OPTION NOLET

      ADDGAUGE 1, "TEST", "RED", "red", "WHITE"

      FOR a = 0 to 10
         SETGAUGE 1, a, 10
         PAUSE 1
      NEXT a

      DELGAUGE 1

      END
