Question

I’m using an action in cocos2D that calls a method and passes a BOOL as an parameter.

I get the warning: “Passing argument 3 of ‘actionWithTarget:selector:data:’ makes pointer from integer without a cast” with this line:

id actionCharacterReaction = [CCCallFuncND actionWithTarget:self selector:@selector(characterReaction : data:) data:flipChar];

I’ve tried:

id actionCharacterReaction = [CCCallFuncND actionWithTarget:self selector:@selector(characterReaction : data:) data:(BOOL)flipChar];

My method looks like this:

-(void) characterReaction:(id)sender data:(BOOL)flipChar {
    *code stuff inside*
}

It still seems to work fine. I’m just annoyed by the warning. Any ideas?

Answer 1

You are going to need to wrap you flipChar in an NSNumber to pass it as a reference properly. When using selectors you can not pass primitive types directly.

id actionCharacterReaction = [CCCallFuncND actionWithTarget:self
                              selector:@selector(characterReaction : data:) 
                                  data:[[NSNumber numberWithBool:flipChar] retain]];
...

-(void) characterReaction:(id)sender data:(NSNumber*)flipChar {
    BOOL fc = [flipChar boolValue];
    *code stuff inside*
    [flipChar release]; //Retained in call to CCCallFuncND
}

Edit: after briefly looking at the documentation it looks like it takes a void*. Since void* can be any object, not just an Objective-C object, so you will likely need to manually retain and release the number. Code above is updated.