command /ta [<text>]:
   trigger:
      if arg 1 is "start":
         {timed} is not 1
         set {time} to 0
         set {timed} to 1
         while {timed} is 1:
            add 0.1 to {time}
            wait 2 tick
      else if arg 1 is "finish":
         set {timed} to 0
         send "%{time}%" to player