Texas Instruments TI-99/4A - Page 181

Codebreaker
These statements print the score for each guess. Strini;S are used in
di~pl[1Ying the score to insure that the score is always displayed in
the "N.R " format. If the score is an integer number. then a ".0" (line
370) must be added after the number. If the score is less than one,
then u "0" (line '100) must be added before the number, lfthe score
is a non-integer and Kfeater than one. then just the score itself is
printed (line 420). If the score is not equal to 4. the program
transfers to line 210 to accept another guess.
These statements print the number of tries you took to guess the
code number. Then the computer asks if you want to play again. If
you enter Y. the program transfers to line 110 to generate a new
number If you enter anything else. the program stops.
Here is a sample of a program run. (Of course, your code numbers
will be different.)
User's Reference Guide
Examples:
>360 IF INT(SCORE)<>SCORE THE
N 390
>370 PRINT STR$(SCORU&".O"
>380 GDrD 430
>390 IF SCORE>1 THEN 420
>400 PRINT "O"&STR$(SCORE)
>410
GOTO 430
>420 PRINT STR$(SCORE)
>430 IF SCORE<>4 THEN 210
>440 PRINT "YOU TOOK "&STR$(T
RIES)&" TRIES TO GUESS"
>450 PRINT "THE CODE NUMBER."
>460 DISPLAY ">I0ULD YOU LIKE
TO PLAY AGAIN"
>470 INPUT "ENTER Y OR N: ":A
:t
>480 IF A$="Y" THEN 110
>490 END
>RUN
--screen clears
ENTER GUESS? 1234
0.1
ENTER GUESS? 5678
2.1
ENTER GUESS? 9238
1.0
ENTER GUESS? ~694
1.0
ENTER GUESS? 5198
2.1
ENTER GUESS? 5715
4.0
YOU TOOK 6 TRIES TO GUESS
THE CODE NUMBER.
WOULD YOU LI~E TO PLAT AGAIN
ENTER Y OR N: N
** DONE **
III·25