How to rotate an SKSpriteNode around the node's Y-axis?

Question

I'm trying to rotate an SKSpriteNode node around it's Y-axis. I know there's the zRotation property and that will rotate the node clockwise or counter-clockwise; however, I'd like to rotate the node around it's own Y axis (like a dancing ballerina for instance), and I can't seem to find any functionality to do so. What is the best recommended way of doing this?

Answer 1

    SKSpriteNode *sprite = [SKSpriteNode spriteNodeWithImageNamed:@"Spaceship"];
    sprite.position = location;
    SKAction* action0 = [SKAction scaleXTo:1.0 duration:0.5];
    SKAction* action1 = [SKAction scaleXTo:0.1 duration:0.5];
    SKAction* action2 = [SKAction scaleXTo:-0.1 duration:0.5];
    SKAction* action3 = [SKAction scaleXTo:-1.0 duration:0.5];

    SKAction* action = [SKAction sequence:@[action0, action1, action2, action3]];
    [sprite runAction:[SKAction repeatActionForever:action]];

    [self addChild:sprite];

This will get you what looks like a 3D card flip, but obviously if you're expecting an object to have depth you wont get that programatically with scaling.

Or well less animations (As LearnCocos2D suggested):

    SKSpriteNode *sprite = [SKSpriteNode spriteNodeWithImageNamed:@"Spaceship"];
    sprite.position = location;
    SKAction* action0 = [SKAction scaleXTo:1.0 duration:0.5];
    SKAction* action1 = [SKAction scaleXTo:-1.0 duration:0.5];

    SKAction* action = [SKAction sequence:@[action0, action1]];
    [sprite runAction:[SKAction repeatActionForever:action]];

    [self addChild:sprite];