home *** CD-ROM | disk | FTP | other *** search
GW-BASIC | 1980-01-01 | 384 b | 13 lines |
- 10 '**********************************
- 20 '** GRAPH03 **
- 30 '**********************************
- 40 A=1:B=1
- 50 SCREEN 1:KEY OFF:CLS
- 60 X1=0:X2=319:Y1=0:Y2=199
- 70 LINE (X1+A,Y1+A)-(X2-A,Y2-A),B,B
- 80 X1=X1+9:X2=X2-9:Y1=Y1+1.2:Y2=Y2-1.2
- 90 A=A+0.5
- 100 IF X2-A>0 THEN 70
- 110 B=B+1
- 120 IF B<10 THEN FOR Z = 1 TO 1000 : NEXT : GOTO 50
-