ZX81 Listing for ddg.p


ZX81 program listing for ****DDG****SLR/2026****

****DDG****SLR/2026**** (ddg.p)

A simple reaction game. How fast can you run?


SYSTEM VARIABLES

PROG  : 16509
D-FILE: 17071
VARS  : 17864
E-LINE: 17865
STKBOT: 17865
STKEND: 17865


LEGEND

9999 means line number
PRINT means treat as KEYWORD P


PROGRAM LISTING

  10 REM ****DDG****SLR/2026****
  20 CLS
  30 PRINT ,,,,"DUCK DUCK GOOSE"
,,
  40 PRINT "PRESS LETTER TO RUN"
,,,"READY";
  50 FOR X=3 TO 1 STEP -1
  60 PRINT "...";X;
  70 LET L$=CHR$ (INT (RND*26)+3
8+SIN PI*COS PI*0)
  80 NEXT X
  90 PRINT "...GO/"
 100 SCROLL
 110 LET R=INT (RND*100+1)
 120 IF R>80 THEN GOTO 150
 130 PRINT "DUCK"
 140 GOTO 100
 150 PRINT "GOOSE/"
 160 SCROLL
 170 PRINT "PRESS ";L$;
 180 FOR X=1 TO 10+RND*8
 190 IF INKEY$=L$ THEN GOTO 290
 200 PRINT ".";
 210 NEXT X
 220 PRINT "GOT YOU/"
 230 SCROLL
 240 PRINT "PLAY AGAIN? Y/N"
 250 IF INKEY$<>"" THEN GOTO 250
 260 IF INKEY$="Y" THEN RUN
 270 IF INKEY$="N" THEN STOP
 280 GOTO 260
 290 PRINT "WIN/"
 300 GOTO 230
 310 SAVE "DDG"
 320 RUN