1 rem rosetta code
2 rem task: animation
10 t$="hello world! ":d=-1
20 print chr$(147);:rem clear screen
30 print "*****************"
35 print "*               *"
40 print "*               *"
45 print "*               *"
50 print "*****************"
60 print "{HOME}{DOWN}{DOWN}{RIGHT}{RIGHT}"t$
70 get k$
75 if k$=" " then d=not d
80 on (abs(d))+1 gosub 1000,1010
90 if k$="q" then print chr$(147):end
95 rem
100 rem between line 80 and line 999
110 rem check for other user input
120 rem and process accordingly
130 rem
999 for i=1 to 100:next:goto 60
1000 t$=right$(t$,len(t$)-1)+left$(t$,1):return
1010 t$=right$(t$,1)+left$(t$,len(t$)-1):return