view tk/gi3.lite @ 10:f2aa38ce0787

add state display.
author kono
date Fri, 19 Jan 2001 23:14:00 +0900
parents 1c57a78f1d98
children
line wrap: on
line source

%
% specification for simple graphics interaction
%

specification((
+((
    keep((red,not(start)));
    ((start,[](green),length(3)) & 
    next(keep((red,not(stop),not(start)))))
 )),
[]((red,not(green);not(red),green)),
[]((green->move)),
[]((red->not(move))),
halt(quit)
)).
st_variables([stop,start,quit],[red,green,move]).