ftp.nice.ch/pub/next/games/fun/Guess.NIHS.bs.tar.gz#/Guess/Source/Guesser.m

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/* Simple Sound Demo Program */
#include <time.h>
#include <stdlib.h>

#import "Guesser.h"

@implementation Guesser

+ new;
{
      self = [super new];
      
     /* init random number */
     srand(time(0));
     real_num = rand()&100;
     
     /* init sounds */
     too_low = [Sound new];
     too_high = [Sound new];
     just_right = [Sound new];
     instructions = [Sound new];
     
     /* load sounds from files */
     [too_low readSoundfile:"too_low.snd"];
     [too_high readSoundfile:"too_high.snd"];
     [just_right readSoundfile:"just_right.snd"];
     [instructions readSoundfile:"instructions.snd"];
 
     [instructions play:self];

     return self;
}

- setInput_textfield:anObject
{
    input_textfield = anObject;
    return self;
}


- newGame:sender
{ 
    real_num = rand()&100;
    [input_textfield selectText:self];
    [instructions play:self];
    return self;
}

- guess:sender
{
     int the_guess;
     the_guess = [input_textfield intValue];
     if (the_guess < real_num)
     {
         [too_low play:self];
	[input_textfield selectText:self];
     }
     else if (the_guess > real_num)
     {
         [too_high play:self];
	[input_textfield selectText:self];
     }
     else /* the player guessed correctly */
     {
         [just_right play:self];
	[input_textfield selectText:self];
     }

    return self;
}


@end

These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.