Realistic card turn with Cocos2d

gistfile1.m

#import <Foundation/Foundation.h>
#import "cocos2d.h"

@interface MCCard : NSObject

@property (readwrite, getter = isFaceUp) BOOL faceUp; 
@property (readwrite, assign) CCSprite *cardSprite;
@property (readwrite, assign) CCSprite *frontCardSprite;
@property (nonatomic, retain) NSString *cardname;
@property (nonatomic, retain) NSString *backImageName;

+ (id)cardWithParentNode:(CCNode*)parentNode;
- (id)initWithParentNode:(CCNode*)parentNode;

- (void)turnCard;
- (void)flipReveal;
- (void)flipHide;

@end

MCCard.m

- (void)turnCard
{
    if ([self isFaceUp]) {
        [self flipHide];
        self.faceUp = NO;
    } else {
        self.faceUp = YES;
        [self flipReveal];
    }
}

- (void)flipHide
{
    id scale = [CCScaleTo actionWithDuration:0.25 scaleX:-1.2 scaleY:1.2];
	CCEaseExponentialIn* flipHalf = [CCEaseExponentialIn actionWithAction:[CCActionTween actionWithDuration:0.25 key:@"scaleX" from:-1.2 to:0.0]];
	CCCallFuncN* removeLetter = [CCCallFuncN actionWithTarget:self selector:@selector(hideFront:)];
	CCEaseExponentialOut* flipRemainingHalf = [CCEaseExponentialOut actionWithAction:[CCActionTween actionWithDuration:0.25 key:@"scaleX" from:0.0 to:1.20]];
    id reverseScale = [CCScaleTo actionWithDuration:0.25 scaleX:1.0 scaleY:1.0];; // something like this, don't have mac at hand
    
	CCSequence* seq = [CCSequence actions:scale,flipHalf,removeLetter,flipRemainingHalf, reverseScale, nil];
	[self.cardSprite runAction:seq];
    
}

- (void)flipReveal
{
    id scale = [CCScaleTo actionWithDuration:0.25 scaleX:1.2 scaleY:1.2];
	CCEaseExponentialIn* flipHalf = [CCEaseExponentialIn actionWithAction:[CCActionTween actionWithDuration:0.25 key:@"scaleX" from:1.2 to:0.0]];
    
	CCCallFuncN* showLetter = [CCCallFuncN actionWithTarget:self selector:@selector(showFront:)];
    
	CCEaseExponentialOut* flipRemainingHalf = [CCEaseExponentialOut actionWithAction:[CCActionTween actionWithDuration:0.25 key:@"scaleX" from:0.0 to:-1.2]];
    id reverseScale = [CCScaleTo actionWithDuration:0.25 scaleX:-1.0 scaleY:1.0];; // something like this, don't have mac at hand
    
	CCSequence* seq = [CCSequence actions:scale,flipHalf,showLetter,flipRemainingHalf, reverseScale, nil];
	[self.cardSprite runAction:seq];
    
}

- (void)hideFront:(id)node
{
	[frontCardSprite setVisible:NO];
}

- (void)showFront:(id)node
{
	[frontCardSprite setVisible:YES];
}