How can I initialize 15-20 sprites with the same starting position?

Question

How can I load 15-20 sprites in Cocos2D at the same point (ccp(20,20), which is an alias for CGPointMake) using NSArray? This is what I'm doing now, and it doesn't work:

int i,endvalue=3;
NSMutableArray *levelStar = [ [NSMutableArray alloc] initWithCapacity:9 ];
for(i=1;i<=endvalue;i++)
{
    CCSprite *star = [CCSprite spriteWithFile:@"image"+i+".png"];
    star.position = ccp( 20,20);
    [levelStar addObject:star];
    [self addChild:star];
}

Answer 1

While it is extremely unclear what you are doing and what you are considering behavior that "doesn't work," I want to point out that there is a huge discrepancy with your question (which asked about setting up 15 to 20 sprites) and your code, which may be the root of your troubles. Specifically, you have this loop:

int i, endvalue=3;
for(i = 1; i <= endvalue; i++) {
  ....
}

This loop only executes three times. So you're only setting up and adding three sprites to the array total. Perhaps you meant to write your loop this way?

for(int i = 0; i < 15; ++i) {
  ...
}