cocos2d for iPhone

A fast, easy to use, free, and community supported 2D game engine

1. 

   akaii
   Member

   I'm trying to reparent a CocosNode. I expected the procedure to be simple:

   [parent removeChild:node cleanup:YES];
   [newparent addChild:node];

   This fails. I get a EXC_BAD_ACCESS error, so it's clearly some sort of memory problem.

   Does removeChild deallocate the node's children? The error is thrown when addChild calls the node's onEnter method and tries to cycle through its children. The same error is thrown if I do this for example:

   [parent removeChild:node cleanup:YES];
   NSLog(@"children count %d", [[node children] count]);

   Is there a way for me to preserve the node's children safely when I remove the child? Or is my only recourse to recreate the object's children (or the object itself)?

   Posted 2 years ago #
2. 

   natanavra
   Member

   just call the method without cleanup, cleanup deallocs your child.

   [parent removeChild:node cleanup:NO];
   [newParent addchild: node];

   This should solve your problem.
   ~ Natanavra.

   Posted 2 years ago #
3. 

   Codemattic
   Moderator

   you could also try:
   

   [node retain]; //I'm using node, dont delete it
   [parent removeChild:node cleanup:YES];
   [newparent addChild:node];
   [node release]; //I'm done using node

   Posted 2 years ago #
4. 

   akaii
   Member

   Unfortunately, it doesn't seem to make a difference. Same error is still thrown, whether the cleanup parameter is set to true or false.

   - (void)cleanup
   {
   // actions
   [self stopAllActions];

   // timers
   [scheduledSelectors release];
   scheduledSelectors = nil;

   [children makeObjectsPerformSelector:@selector(cleanup)];
   }

   It only seems to affect actions and scheduled tasks...

   Posted 2 years ago #
5. 

   akaii
   Member

   [node retain]; //I'm using node, dont delete it
   [parent removeChild:node cleanup:YES];
   [newparent addChild:node];
   [node release]; //I'm done using node

   This seems to work. I didn't realize removeChild dropped the reference count.

   Posted 2 years ago #

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