Question

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?