adding objects to nsmutable array, but the array is still empty

Question

Hi, I am learning Objective-C and have hit a snag.

I have created a custom object called "Baddie". I am trying to add the object to a couple of mutable arrays.

Baddie *b1 = [[Baddie alloc]initWithTag:4444 pos:cpv(450,270) dir:cpv(0,1)]; 
[baddieArray addObject: b1];    
[baddieWaitingArray addObject: [[Baddie alloc]initWithTag:4447 pos:cpv(450,270) dir:cpv(0,1)]];
[baddieWaitingArray addObject: [[Baddie alloc]initWithTag:4448 pos:cpv(450,270) dir:cpv(0,1)]];
    //end

At "end" both arrays appear to be empty. The arrays were previously initialised as follows:

baddieArray = [[NSMutableArray alloc] init];
baddieWaitingArray = [[NSMutableArray alloc] init];

I'm not sure why the arrays are empty. The pointer to b1 is still pointing to the object. I can still retrieve properties from it. Where have I gone wrong?

Answer 1

This seems too simple, but if baddieArray is nil, then the adds will be ignored and querying its size will return zero.

I realize that you show reasonable allocation for the arrays, but could something have happened to them after that point?

Answer 2

Hi,

Have you placed a breakpoint near //end and checked that the array's are not nil?