skspritenode

I'm still playing around with learning SpriteKit in iOS & have been doing lots of reading & lots of experimenting. I'm confused by something else I've found* regarding coordinates, frames & child nodes. Consider this snippet of code, in which I'm trying to draw a green box around my spaceship sprite for debugging purposes: func addSpaceship() { let spaceship = SKSpriteNode.init(imageNamed: "rocketship.png") spaceship.name = "spaceship" // VERSION 1 spaceship.position = CGPointMake(CGRectGetMidX(self.frame), CGRectGetMidY(self.frame)) let debugFrame = SKShapeNode(rect: spaceship.frame)

I'm new in objectif-c and sprite-kit development (but not in programming). So I'm starting the Apple's Spri. The app works perfectly, except that the nodes representing the rocks are automatically removed form its parent when rocks fall through the bottom of the scene. This, without implementing the -(void)didSimulatedPhysics method : - (void)didSimulatedPhysics { [self enumerateChildNodesWithName:@"rock" usingBlock:^(SKNode *node, BOOL *stop) { if (node.position.y < 0) [node removeFromParent]; }]; } I can see that with the nodes counter shown on the screen : it doesn't increase with the

I have the following sprite that falls to the bottom of the screen: // The View self.physicsBody = [SKPhysicsBody bodyWithEdgeLoopFromRect:self.frame]; self.physicsWorld.contactDelegate = self; // The Sprite SKSpriteNode *cube = [[SKSpriteNode alloc] initWithImageNamed:@"cube"]; [cube setPosition:CGPointMake(160,250); [self addChild:cube]; // The Physics cube.physicsBody = [SKPhysicsBody bodyWithRectangleOfSize:cube.frame.size]; cube.physicsBody.dynamic = YES; cube.physicsBody.affectedByGravity = YES; cube.physicsBody.mass = 0.02; Is there a way to make it so its sides are bulging when it hits

Can someone provide an example of how to progressively blur a SKSpriteNode's image using Apple's Sprite Kit? For instance, let's say the user touches a button on the screen which will then trigger the background to slowly (i.e. progressively) blur until it reaches a specific threshold. Ideally, I would like to reverse the process too (e.g. allow the user to unblur the image by touching the same button). There are two possible paths to take on this, both use SKEffectNodes SKEffectNodes allow you to apply CI Filters to a node. There is a CI Filter for Gaussian Blur. So Create a SKEffectNode, and