cocos2d help: CCMenuItem unselected 'EXC_BAD_ACCESS' and CCCallFunc

Question

I've been having problems with CCMenuItem and its timing with CCCallFunc.

Basically I'm getting 'EXC_BAD_ACCESS'

@ this line of the CCMenuItem class

-(void) ccTouchEnded:(UITouch *)touch withEvent:(UIEvent *)event
{
    ...
    [selectedItem_ unselected]; // EXC_BAD_ACCESS
    [selectedItem_ activate];
    ...
}

It seems the menu item is deallocated before the touch ends. I'm using CCCallFunc to call a 'removeThisSprite' method that removes it from the parent

so the last action of the CCMenuItem sequence I call:

[CCCallFuncO actionWithTarget:self selector:@selector(removeThisSprite:) object: _currentButton]

The removeThisSprite method is like this:

CCMenuItemSprite2 *sender = nil;
sender.isEnabled = NO;

if ([_sender isKindOfClass:[CCMenuItemSprite class]]) {
    sender = _sender;
    [sender removeFromParentAndCleanup: YES];
}

This generally happens when the player 'spams' the screen with taps, but doesn't happen unless the taps are rapid. Which is likely to occur with a game I'm making. I'm guessing there's some sort of timing issue going on with players pressing the button too fast.

score 2 · Answer 1 · answered Nov 23 '11 at 11:05

You can always try and delay the removal of the menu item:

[self performSelector:@selector(removeMenuItem:) withObject:sender afterDelay:0.1f];

...

-(void) removeMenuItem:(id)sender
{
   if ([sender isKindOfClass:[CCMenuItemSprite class]])
   {
      [sender removeFromParentAndCleanup: YES];
   }
}

cocos2d help: CCMenuItem unselected 'EXC_BAD_ACCESS' and CCCallFunc

1 Answers1