Load File: life.sml

  Implements the Life game.

  To run from inside MLWorks, at the listener prompt type

	test ();

  This starts a new game with the default initial values.  To start
  the run, type `s' into this window -- this starts a continuous cycle
  of generations.  To stop this continuous cycle, press `s' again.  To
  see one generation at a time, press any other key, apart from `r'
  and `x'.

  Other controls are:

           s   start and stop
           r   return to initial configuration
  other keys   get next generation

           x   quit
 
  The setting of particular points can also be toggled using the left
  mouse-button.

  It is also possible to start games using different initial
  configurations. For instance, typing the following into the listener

    life (gunvals,world_x,world_y);

  starts a game with a `glider gun' in place and in a grid of the
  default size.  To use other pre-defined configurations, you will
  need to load the file `forms.sml'.


  To run as a standalone executable, first compile and load the
  module as usual using the project workspace.  Then create an
  executable file for instance by doing

      MLWorks.Deliver.deliver 
	("life", appl(gunvals,world_x,world_y), MLWorks.Deliver.WINDOWS);

  (appl(values,x,y) is a function of type unit -> unit which allows
  the demo to be run from the command-line without invoking MLWorks).  
  After delivery the MLWorks session will exit and the file `life.exe' 
  can then be run from the command-line.
  
  Note that MLWorks executables depend on the MLWorks runtime shared
  library (DLL).  If the DLL cannot be found, either add the bin
  subdirectory of the current directory to your path environment
  variable, or run the executable from either the MLWorks bin directory
  or the directory in which it is located.