#import <stdio.h>

#import "polygon.h"

@implementation Polygon
-(id) init
{
  [super init];

  points = [[NSMutableArray alloc] init];

  return self;
}

-(void) addPoint:(Point*) p
{
  // the array will retain p on its own, but for this example
  // I wanted it to be explicit that the Polygon retains the points

  [p retain];
  [points addObject:p];
}

-(Point*) getPoint:(int) i
{
  return [points objectAtIndex:i];
}

-(void) dealloc
{
  // see note about retained points above

  printf("Polygon.dealloc\n"); // apologies for the Java notation here

  for (int i = 0; i < [points count]; i++)
    {
      [[points objectAtIndex:i] release];
    }

  [points release];
  [super dealloc];
}
@end