Question

I am working on a game in Cocos2d for iPhone.

In my init method I have an object (type id) declared as follows (also note bossDir is declared as 1):

    bossMov = [CCMoveTo actionWithDuration:1.0f position:ccp(75*bossDir, 320-55)];
    [boss runAction:bossMov];

Then in a timer method I have:

if ([bossMov isDone] == YES) {
    bossDir = -bossDir;
    [boss stopAllActions];
    [boss runAction:bossMov];
}

It moves the boss once, but after that it gives EXC_BAD_ACCESS and points me to a line in the file “CCTimer.m” that says:

if( elapsed >= interval ) {
    impMethod(target, selector, elapsed); //This line in particular.
    elapsed = 0;
}

How can I fix this problem?

Answer 1

You are not retaining bossMov action. So when you call [boss stopAllActions]; it is released and deallocated. Then you are trying to run the deallocated action – so you get the bad access.