Scrolling List using Sprite Kit

@interface MainScene ()
@property (nonatomic) SKNode *swipeLayer;
@end

@implementation MainScene
{
    CGFloat topSpotHeight;
    CGFloat tHeight;
    CGFloat tWidth;
    BOOL detailViewIsOpen;
}


- (instancetype) initWithSize:(CGSize)size
{
    if (self = [super initWithSize:size])
    {
        self.backgroundColor = [UIColor blackColor];

        tWidth          = self.size.width;
        tHeight         = self.size.height;
        topSpotHeight   = tHeight * 0.9;

        detailViewIsOpen        = NO;
        NSUInteger itemCount    = 10;
        self.swipeLayer         = [SKNode new];

        for (int i = 0; i < 10; i++)
        {
            SKSpriteNode *sprite = (SKSpriteNode *)[self listItemForRow:i + 1 andWidth:tWidth andHeight:tHeight / itemCount - 5];
            sprite.position = CGPointMake(tWidth / 2, tHeight - (tHeight / itemCount * (i + 1)));
            sprite.name = @"movable";
            [self.swipeLayer addChild:sprite];
        }
        [self addChild:self.swipeLayer];
    }
    return self;
}

- (void)didMoveToView:(SKView *)view
{
    swipeDownRecognizer             = [[UISwipeGestureRecognizer alloc] initWithTarget:self
                                                                                action:@selector(handleSwipes:)];
    swipeUpRecognizer               = [[UISwipeGestureRecognizer alloc] initWithTarget:self
                                                                                action:@selector(handleSwipes:)];
    tapGestureRecognzier            = [[UITapGestureRecognizer alloc] initWithTarget:self
                                                                              action:@selector(handleTapsFrom:)];
    swipeUpRecognizer.direction     = UISwipeGestureRecognizerDirectionUp;
    swipeDownRecognizer.direction   = UISwipeGestureRecognizerDirectionDown;

    [self.view addGestureRecognizer:swipeDownRecognizer];
    [self.view addGestureRecognizer:swipeUpRecognizer];
    [self.view addGestureRecognizer:tapGestureRecognzier];

    [tapGestureRecognzier requireGestureRecognizerToFail:swipeUpRecognizer];
    [tapGestureRecognzier requireGestureRecognizerToFail:swipeDownRecognizer];
}

- (void) handleSwipes: (UISwipeGestureRecognizer *)sender
{
    if (sender.direction == UISwipeGestureRecognizerDirectionDown && !detailViewIsOpen)    // && Not at Top
    {
        CGFloat moveUp = 100.0f;
        [self.swipeLayer runAction:[SKAction moveByX:0.0f y:moveUp duration:0.1]];
    }
    else if (sender.direction == UISwipeGestureRecognizerDirectionUp && !detailViewIsOpen) // && Not at Bottom
    {
        CGFloat moveDown = -100.0f;
        [self.swipeLayer runAction:[SKAction moveByX:0.0f y:moveDown duration:0.1]];
    }
}

- (void) handleTapsFrom: (UITapGestureRecognizer *)sender
{
    CGPoint touchPoint = [sender locationInView:self.view];
    SKSpriteNode *node = (SKSpriteNode *)[self.scene nodeAtPoint:touchPoint];
    if ([node.name isEqualToString:@"movable"] && !detailViewIsOpen)
    {
        detailViewIsOpen = YES;
        [node runAction:[SKAction moveTo:CGPointMake(tWidth / 2, topSpotHeight) duration:0.5] completion:^
        {
            SKSpriteNode *detailNode = [SKSpriteNode spriteNodeWithColor:[SKColor orangeColor] size:CGSizeMake(tWidth, tWidth)];
            detailNode.position = CGPointMake(CGRectGetMidX(self.frame), CGRectGetMidY(self.frame));
            detailNode.name = @"detail";
            [self.swipeLayer addChild:detailNode];
        }];
        NSLog(@"Open That List Item");
    }
    else if (detailViewIsOpen && [node.name isEqualToString:@"detail"])
    {
        NSLog(@"Detail Node Touched");
    }
}


# pragma mark - Helper Methods

- (SKSpriteNode *) listItemForRow:(NSInteger)row andWidth:(CGFloat)width andHeight:(CGFloat)height
{
    SKSpriteNode *sprite = [SKSpriteNode spriteNodeWithColor:[SKColor blueColor] size:CGSizeMake(width, height)];
    SKLabelNode *label = [SKLabelNode labelNodeWithText:[NSString stringWithFormat:@"%ld", (long)row]];
    label.fontName = @"HelveticaNeue-Black";
    label.name = @"label";
    label.fontColor = [SKColor whiteColor];
    label.verticalAlignmentMode = SKLabelVerticalAlignmentModeCenter;

    [sprite addChild:label];

    return sprite;
}

@end