//  Playtime.kt  (c) Kari Laitinen

//  http://www.naturalprogramming.com

//  2023-01-12  File created.

//  WARNING!  It may be better not to run this program
//  for a long time on your computer because the infinite
//  loop of the program consumes quite a lot of processing
//  power, and that may result in that the electronics 
//  of your computer gets too hot. In my computer the cooling
//  fan of the processor starts operating immediately when
//  I start executing this program.

import java.util.*

class  ThreadToDisplayTicksAndTime : Thread()
{
   var must_display_ticks_and_time = true

   fun stop_this_thread()
   {
      must_display_ticks_and_time = false
   }

   override fun run()
   {
      var previous_time_ticks : Long
      var current_time_ticks : Long
      var loop_counter  =  0L

      print( "\n loop_counter   current_time_ticks        Readable time \n" )

      previous_time_ticks  =  System.currentTimeMillis()

      while ( must_display_ticks_and_time  ==  true )
      {
         loop_counter  ++ 

         current_time_ticks  =  System.currentTimeMillis()

         if ( ( current_time_ticks  -  previous_time_ticks )  >  5000  &&
              ( ( current_time_ticks  /  1000 ) %  5 )  ==  0L ) 
         {
            print( "\n   "  + loop_counter 
                           +  "     "  + current_time_ticks  +  "      " )
            print( String.format( "%tc",  current_time_ticks ) ) 

            previous_time_ticks  =  current_time_ticks
            loop_counter   =  0
         }
      }
   }
}

fun main()
{
   val thread_to_display_ticks_and_time = ThreadToDisplayTicksAndTime()

   print( "\n Press the Enter key to stop the program.\n" )

   thread_to_display_ticks_and_time.start()

   val any_string_from_keyboard  =  readLine()!!

   thread_to_display_ticks_and_time.stop_this_thread()
}