main.pas
	 .       Game  .

u_log.pas, u_options.pas
	   .    .
	
u_game.pas, u_battlefield.pas, u_graphics.pas (    u_sounds.pas  u_controls.pas)
	    .          .

  ( )
	        . ,  u_window      u_graphics. TODO:      ,    .
	
 .
	 u_log, u_options, u_game, u_battlefield, u_graphics, u_sounds, u_controls     =  + .  ,            .       . (   !)     ,         (     ).   ,         .      - main.pas.        .