ftp.nice.ch/pub/next/developer/objc/gamekit/gamekit_future.s.tar.gz#/gamekit_future/gamekit-1/ArrayBonusTracker.m

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#import <gamekit/gamekit.h>

static int _defaultBonusArray = 0;

@implementation ArrayBonusTracker

- init
{
	return [self initForBonuses:&_defaultBonusArray count:1];
}

- initForBonuses:(int *)bonusArray count:(int)num
{	// we copy the array in...
	int i;
	// set up array before super init because it will call resetBonus,
	// which expects this data to be present already.
	if (valuesArray) free(valuesArray);
	valuesArray = (int *)NXZoneMalloc([self zone], sizeof(int) * num);
	for (i=0; i<num; i++) valuesArray[i] = bonusArray[i];
	count = num;
	[super init];
	return self;
}

- advanceBonus
{
	bonusIndex++;
	if (bonusIndex >= count) bonusIndex = count - 1;
	value = valuesArray[bonusIndex];
	return self;
}

- retreatBonus
{
	bonusIndex--;
	if (bonusIndex < 0) bonusIndex = 0;
	value = valuesArray[bonusIndex];
	return self;
}

- setMin:(int)newMin max:(int)newMax { return self; } // No-op

- resetBonus
{
	bonusIndex = 0;
	value = valuesArray[bonusIndex];
	return self;
}


@end

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