Question

I have made a method player method (inherits from NSObject) that I initialize in the HelloWorldLayer class. I want to declare other methods of the same class in such a way that I don’t need to alloc them. For Example:

Player.mm

-(id)spritePlayer:(CCLayer *)parentLayer 
                     inWorld:(b2World *)world
{
    creation of sprite body and other stuff
}

I want to use this method in the contact Listener class, but I’ve declared it the player class:

-(void) touchingFix:(b2Fixture *)touchedFix
{
    bodyTouched=TRUE;
    bodyFix=touchedFix;
}

In the Contact Listener class I can only access it through:

[[Player alloc] touchingFix:fixtureA];

Can’t I access it in a way without allocating it in another method? if yes, how can I do it.

Answer 1

Change it to a class method: remove the ‘-‘ in front of the method and change it to a ‘+’

+(void) touchingFix:(b2Fixture *)touchedFix
{
    bodyTouched=TRUE;
    bodyFix=touchedFix;
}

You can access a class method by using the class name instead of a pointer to an instance of the class:

[Player touchingFix:fixtureA];