SpriteKit - Set Scale and Physics

Question

What is the correct way to \"zoom out\" on your scene.

I have an object that I apply an impulse to fire it across the screen. It for example will fire about 100 px a

Answer 1

For those like me who ended up here after a search, changing the scale of the scene to zoom out no longer works. Instead, encapsulate all your nodes in an empty SKNode and run actions on this one:

self.rootNode = [SKNode node];
// Add your children nodes here to the rootnode.
[self addChild:self.rootNode];
// Zoom out
[self.rootNode runAction:[SKAction scaleBy:2 duration:5]];
// Zoom in
[self.rootNode runAction:[SKAction scaleBy:.5 duration:5]];

self is the SKScene. I hope this helps.

Answer 2

I believe you're not supposed to scale the SKScene (like it hints you if you try setScale method with SKScene). Try resizing it instead.

myScene.scaleMode = SKSceneScaleModeAspectFill;

And then while zooming:

myScene.size = CGSizeMake(myScene.size.width + dx, myScene.size.height + dy);

*Apple documentation says:

Set the scaleMode property to SKSceneScaleModeResizeFill. Sprite Kit automatically resizes the scene so that it always matches the view’s size.

Answer 3

The easy fix (thanks to Chris LaPollo, an author on RW)

[self runAction:[SKAction scaleTo:0.5 duration:0]];

Nothing else needed.

The odd thing is you cannot do

[self setScale:0.5];

As you get this warning, and it doenst work - but running an action does -- weird!!!

SKScene: Setting the scale of a SKScene has no effect.