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Language Objective C
(No NSLog)
| Date: | 12/01/08 |
| Author: | C.W. Betts |
| URL: | n/a |
| Comments: | 0 |
| Info: | n/a |
| Score: |  (2.33 in 3 votes) |
/*
* 99 Bottles of Beer written in Objective-C for Mac OS X.
* Should work on most OpenStep and GNUStep environments as well.
*
* Please note that since Objective-C is a superset of C, all
* C versions are valid Objective-C as well. Therefore, this
* version is written in fancy OO, and using NSLog rather than
* printf for optimum uglyness.
*
* Compiles on Mac OS X with "gcc -framework Foundation 99Bottles.m"
*
* (c) 2002 Dan Christiansen
* Modified by C.W. Betts
*/
#import <Foundation/Foundation.h>
//Lets make the output look better than NSLog
void WriteToStandardOutput(NSString *string)
{
NSFileHandle *so =[NSFileHandle fileHandleWithStandardOutput];
[so writeData:[[NSString stringWithFormat:@"%@\n",string]
dataUsingEncoding:NSUTF8StringEncoding]];
}
@interface BeerBottle : NSObject
{
}
- (void)chug;
@end
@interface BeerWall : NSObject
{
NSMutableArray *bottles;
}
+ (BeerWall *)wallWithBottles:(int)nbottles;
- (int)bottles;
- (BeerBottle *)getBottle;
- (void)throwParty;
@end
@implementation BeerWall
- (id)initWithBottles:(int)nbottles
{
self = [super init];
bottles = [NSMutableArray arrayWithCapacity:nbottles];
int i;
for (i = 0; i < nbottles; i++) {
[bottles addObject:[[[BeerBottle alloc] init] retain]];
}
return self;
}
+ (BeerWall *)wallWithBottles:(int)nbottles
{
return [[BeerWall alloc] initWithBottles:nbottles];
}
- (int)bottles
{
return [bottles count];
}
- (BeerBottle *)getBottle
{
BeerBottle *bottle = [bottles lastObject];
[bottles removeLastObject];
[bottle release];
return [bottle autorelease];
}
- (void)throwParty
{
/* Objective-C is only supposed to handle 63 recursive calls - we do 99.
* Life's a bitch.
*/
switch([self bottles]) {
case 1:
WriteToStandardOutput(@"1 bottle of beer on the wall, 1 bottle of beer,");
WriteToStandardOutput(@"Take one down, pass it around,");
[[self getBottle] chug];
WriteToStandardOutput(@"No bottles of beer on the wall.");
WriteToStandardOutput(@"");
[self throwParty];
break;
case 0:
WriteToStandardOutput(@"No bottles of beer on the wall, no bottles of beer,");
WriteToStandardOutput(@"Go to the store, buy some more,");
WriteToStandardOutput(@"99 bottles of beer on the wall.");
break;
default:
WriteToStandardOutput([NSString stringWithFormat:@"%d bottles of beer on the wall, %d
bottles of beer,",
[self bottles], [self bottles]]);
WriteToStandardOutput(@"Take one down, pass it around,");
[[self getBottle] chug];
WriteToStandardOutput([NSString stringWithFormat:@"%d bottles of beer on the wall.",
[self bottles]]);
WriteToStandardOutput(@"");
[self throwParty];
break;
}
return;
}
-(void)dealloc
{
[NSMutableArray release];
[super dealloc];
}
@end
@implementation BeerBottle
- (id)init
{
self = [super init];
srand(time(0));
return self;
}
- (void)chug
{
if (rand()/(double)RAND_MAX < 0.025)
WriteToStandardOutput(@"BUUUUUUUUURP!");
}
@end
int main()
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
[[BeerWall wallWithBottles:99] throwParty];
[pool release];
}
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