http://www.cocos2d-iphone.org/forum/topic/2483 A fast, easy to use, free, and community supported 2D game engine en-US Wed, 08 Sep 2010 12:51:24 +0000 http://bbpress.org/?v=1.0.2 q http://www.cocos2d-iphone.org/forum/search.php http://www.cocos2d-iphone.org/forum/topic/2483#post-15613 Fri, 16 Oct 2009 08:45:36 +0000 tutukun 15613@http://www.cocos2d-iphone.org/forum/ <p>so anyone has any idea? </p> http://www.cocos2d-iphone.org/forum/topic/2483#post-15546 Thu, 15 Oct 2009 18:02:09 +0000 tutukun 15546@http://www.cocos2d-iphone.org/forum/ <p>ok, So here is the situation:<br /> I have a FoodMenu:Menu class since i need to overwrite the touch functions. </p> <p>'@property(nonatomic, retain) Texture2D* selected;</p> <p>-(id) init<br /> {<br /> MenuItemImage* apple = [MenuItemImage itemFromNormalImage:@"food_healthy_apple.png" selectedImage:@"food_healthy_apple.png" target:self selector:@selector(giveapple:)];</p> <p> self = [[FoodMenu menuWithItems:apple, nil] retain];<br /> [self alignItemsInColumns:[NSNumber numberWithUnsignedInt:3],[NSNumber numberWithUnsignedInt:3], nil];</p> <p> selected = nil;<br /> worldItem = nil;<br /> world = [World sharedWorld];</p> <p> return self;<br /> }</p> <p>-(void) giveapple: (id)sender<br /> {<br /> if(selected)<br /> [selected release];<br /> selected = nil;<br /> selected = [[TextureMgr sharedTextureMgr] addImage:@"food_healthy_apple.png"];<br /> }</p> <p>-(BOOL)ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event<br /> {<br /> if(self.visible == NO) return NO;<br /> [super ccTouchBegan:touch withEvent:event];<br /> if(!selectedItem)<br /> {<br /> self.visible = NO;<br /> return NO;<br /> }<br /> //[selectedItem activateWithTarget:self];<br /> [selectedItem activate];<br /> return YES;<br /> }'</p> <p>It seems instead of copy pointer, the invocation create an copy of the actual instance of the target. Ive test it by create a func call activeWithTarget in MenuItem</p> <p>'-(void) activateWithTarget:(id)target<br /> {<br /> if(isEnabled)<br /> [invocation invokeWithTarget:target];<br /> }'</p> <p>if I use the function invoke, variable selected will return to nil after giveapple finished since all the change was in another instance.<br /> Things works fine with activateWithTarget.</p> <p>Is this a bug? Can anyone clarify this for me?</p> <p>Cheers </p>