get a instance variable from another class?

Question

I know this is a basic questions but it some how does not work.

I have an enemy class which has in its .h an instance variable :

@interface Enemy : CCLayer
{
    CCSprite *enemy1;
    CGSize winSize ;

}

I have another class which is the game class , and which wants to get access to the enemy1. So, this game class is importing the enemy.h ,and can use its functions , BUT i cant get its pointer enemy1, i have tried with no luck :

   Enemy *enemy=[[Enemy alloc]init];
    [enemy enemy1]//error
    enemy.enemy1 //error

Answer 1

I would suggest you should add readonly properties to access those instance variables.

@property (nonatomic,assign,readonly) CCSprite *enemy1;
@property (nonatomic,assign,readonly) CGSize winSize;

Answer 2

Since ivars by default are protected (means visible only to child classes), you should first declare them as public:

@interface Enemy : CCLayer
{
@public
    CCSprite *enemy1;
    CGSize winSize ;

}

After that you will be able to access ivars via standart C syntax like this: enemy->enemy1.

But why not use properties?