:- consult('plnxt.pl'). start:- nxt_open, go_on_buddy, trigger_create(_,pushed,grab_ball). go_on_buddy :- nxt_go(300), grab_ball :- nxt_stop sleep(1), nxt_pincer(close), sleep(1), nxt_go_cm(-300,10), nxt_rotate(300,180), nxt_go_cm(300,30), nxt_pincer(open), nxt_go_cm(-300,10), nxt_stop, nxt_close. pushed :- nxt_touch(Value,force), Value=1.